Nba magnetic materials
2 likes653 views
This document summarizes research from the NanoBioAnalysis group at the University of Oviedo in Spain. The group takes a multidisciplinary approach to nanobioanalysis, combining fields like magnetism, integrated optics, electrochemistry and clinical areas. Two techniques under study are FORC (First-Order Reversal Curves) and SPION RF biosensors. FORC is used to characterize magnetic nanoparticles and materials. The group's work also involves developing electromagnetic sensors to detect superparamagnetic iron oxide nanoparticles (SPIONs) for applications in biosensing and magnetic immunoassays.
1 of 48
Downloaded 21 times
Ad
Recommended
Extreme Ultraviolet Litography (EUVL): novel patterning materials, progress a...
Extreme Ultraviolet Litography (EUVL): novel patterning materials, progress a...Sociedade Brasileira de Pesquisa em Materiais
油
The document discusses progress in extreme ultraviolet lithography (EUVL) for semiconductor fabrication. It covers:
1) EUVL is a promising next-generation lithography technique needed to continue transistor scaling below 7nm, but faces challenges like resolution, line width roughness, and sensitivity.
2) Novel resist materials without chemical amplification are being developed to overcome issues with chemically amplified resists at small scales. Examples discussed are sulfonium-containing polymers that change solubility upon EUV exposure.
3) Experiments show these new resists can resolve lines as small as 16nm and complex nanostructures when exposed with EUV lithography. Continued improvements aim to enhance sensitivity.Teresa Puig - Institut de Ci竪ncia de Materials de Barcelona, ICMAB-CSIC, Espa...
Teresa Puig - Institut de Ci竪ncia de Materials de Barcelona, ICMAB-CSIC, Espa...Fundaci坦n Ram坦n Areces
油
The document discusses high temperature superconductors, specifically YBa2Cu3O7-x, highlighting their potential for high current applications and the complexities of their properties. It covers advancements in coated conductors, manufacturing techniques, and the integration of nanocomposites for improved vortex pinning and performance. The research emphasizes the ongoing commercialization of these materials and their applications in various energy technologies and high field scenarios.Cnt flow-sensorss
Cnt flow-sensorssGanesh Chimmani
油
The document summarizes research conducted by Professor Ajay Sood and his student Shankar Ghosh of IISC Bangalore on the direct generation of electrical signals from the flow of gases over carbon nanotubes. Their experiments showed that gas flow over carbon nanotubes produced measurable voltages and currents that were proportional to flow speed and temperature differences caused by the Seebeck and Bernoulli effects. This discovery suggests applications in gas flow sensors and energy conversion devices that directly generate electricity from gas flows.X-ray nanoprobe aids 3D chip integration
X-ray nanoprobe aids 3D chip integrationPlatform for Advanced Characterisation Grenoble (PAC-G)
油
The document discusses the use of synchrotron X-ray nanotomography to visualize voids in copper-pillar interconnects for advanced 3D chip integration, achieving resolution down to 23nm. This technique addresses manufacturing challenges by enabling the characterization of defects that can impact device performance, thereby supporting the development of more complex chip architectures. Successful application of these methods has led to plans for further investment in analyzing smaller voids and broader TSV architectures for in-operando analysis.Soft x-ray nanoanalytical tools for thin film organic electronics
Soft x-ray nanoanalytical tools for thin film organic electronicsTrinity College Dublin
油
This document discusses the use of soft x-ray nanoanalytical tools for studying thin film organic electronics. Specifically, it summarizes research using scanning transmission x-ray microspectroscopy (STXM) and resonant soft x-ray scattering (RSoXS) to characterize the nanoscale morphology, chemical composition, and charge transport properties of organic thin films and devices. STXM provides chemical imaging down to 12 nm resolution while RSoXS can resolve structures below the STXM resolution limit. Together these techniques provide insights into structure-property relationships in organic photovoltaics, field-effect transistors, and other organic electronic materials and devices.Rapid optimisation techniques
Rapid optimisation techniquesUniversity of Liverpool
油
The document discusses rapid optimization techniques for thin-film materials and devices, highlighting capabilities such as controlled non-uniform deposition and advanced characterization methods. A case study on transparent conductors is presented, illustrating the benefits of combinatorial doping studies for efficient material mapping and performance optimization. Further applications and breakthroughs in thin-film photovoltaics and transparent electronics are also mentioned, along with new developments in perovskite films.3 di metrology-slideshare
3 di metrology-slideshareKeshab Paudel
油
The document discusses advancements in 3D integration technologies using through-silicon vias (TSV). It notes that existing metrology tools are insufficient for characterizing TSVs and that optical scatterometry and interferometric techniques show promise but require further development. The document also discusses how hybrid photonic integration could enable terabit communication but will require optical testing and characterization.NANOFORENSICS: AN EMERGING FIELD IN CRIMINAL INVESTIGATION AND FORENSIC SCIENCE
NANOFORENSICS: AN EMERGING FIELD IN CRIMINAL INVESTIGATION AND FORENSIC SCIENCEForensic Science Section, Department of Anthropology, University of Delhi
油
The document discusses the emerging field of nanoforensics in criminal investigation, highlighting how nanotechnology applies to various forensic areas such as DNA analysis, fingerprint identification, and toxicology. It details techniques for analyzing nanomaterials, including electron microscopy and atomic force microscopy, as well as the potential benefits of nanosensors in detecting explosives and illegal drugs. Future prospects emphasize the need for further research and development to improve the efficacy and application of nanotechnology in forensic science.Paper presentation nanotech
Paper presentation nanotechNashwa Osman
油
Nanoparticles are particles between 1-100 nanometers in size. They exhibit unique physical and chemical properties compared to larger particles of the same material due to their high surface area to volume ratio. Some nanoparticles occur naturally from sources like volcanoes and forest fires, while others are engineered for use in products and technologies. The small size of nanoparticles allows them to more easily enter the body through inhalation, ingestion, or skin absorption, with potential toxic effects depending on dose, size, shape, and composition. Strategies to control nanoparticle exposure include proper ventilation and use of protective equipment.POSTER_RONAK
POSTER_RONAKRonak Oswal
油
Synchrotron X-ray topography (SXRT) is a non-destructive method for studying crystalline materials like defects and strain fields within crystals. Using a white beam for SXRT provides benefits such as not requiring sample orientation, recording multiple reflections simultaneously, visualizing all crystal parts at once with good resolution. X-ray diffraction is also non-destructive and provides information on chemical composition and crystal structure of materials through Bragg's law relating wavelength and diffraction angle. Section mode SXRT imaging is essential to avoid sample heating from large beams and allow separation of cap and substrate images for future reconstruction of MEMS structures. CdTe samples showed high quality with some scratches and inclusions observed.Nanotechnology
NanotechnologySalah N. Farhan
油
Nanotechnology is the manipulation of matter on an atomic, molecular, and supramolecular scale. The three key points are:
1) The concept of nanotechnology was first proposed in 1959, but it emerged in the 1980s with advances like the scanning tunneling microscope and discovery of fullerenes. The term was coined in 1974.
2) Nanotechnology involves engineering materials and devices within the size range of 1-100 nanometers. At this scale, the properties of materials differ from those at larger scales.
3) Potential applications of nanotechnology include electronics, energy storage, drug delivery, biotechnology, and new materials with unique properties. It is estimated nanotechnology will become a trillion dollar market byNanotechnology in microbiology
Nanotechnology in microbiologyMayuri Rani
油
The document discusses various applications of nanotechnology in microbiology. It begins by defining nanotechnology as the manipulation of matter at the nanoscale of 1 to 100 nm. Some key applications discussed include using quantum dots for pathogen detection through fluorescence, using gold and silver nanoparticles in assays like sol particle immunoassays, and using magnetic nanoparticles in detection methods like magnetic relaxation switches that can detect as few as 5 viral particles. The document also discusses nanoparticle-based methods that enable faster, more sensitive detection of pathogens without sample preparation.Magnetic beads in MedLab Magazine issue 02.009
Magnetic beads in MedLab Magazine issue 02.009Fabrice Sultan
油
The document discusses magnetic nanoparticles and microspheres, including Estapor速 microspheres and MagPrep速 particles, and their various applications. Estapor速 microspheres offer advantages for immobilizing antibodies or antigens due to their ability to efficiently bind target molecules. Magnetic particles provide an alternative to conventional chromatography that allows automation and replacement of centrifugation or organic solvents with simple magnetic separation. Estapor速 microspheres and MagPrep速 particles combine these benefits with features like high magnetite content and a non-porous surface, enabling fast migration in magnetic fields while binding targets with high signal and low noise.Development of tribological PVD coatings
Development of tribological PVD coatingsInstituto Nacional de Engenharia de Superf鱈cies
油
The document discusses the development of tribological PVD coatings. It provides examples of materials and processing techniques used to develop such coatings, including pulsed magnetron sputtering and modulated pulse power. It also describes experiments conducted to study the effects of residual stress gradients in PVD TiN coatings on wear resistance, where coatings with varying stress levels were produced and evaluated using scratch and pin-on-disk testing.Bio nano (Top-down bottom up approach)
Bio nano (Top-down bottom up approach) ManojKumar6080
油
This document discusses nanotechnology and provides an overview of top-down and bottom-up approaches to nanomaterial synthesis. It describes that the bottom-up approach involves molecular components arranging themselves into more complex structures from the smallest level, while the top-down approach uses larger external tools to shape and assemble materials into the desired nanoscale structures. Characterization techniques for nanomaterials include SEM, TEM, AFM, XRD, FTIR, and NMR. Applications mentioned include medical imaging, disease detection, agriculture, and environmental remediation.Ndemetalassemb
Ndemetalassembmartindudziak
油
This document summarizes research on using magneto-optic imaging for non-destructive testing of metal structures. It describes developing new thin-film sensors with improved sensitivity, integrating the sensors and image recognition algorithms into a portable system, and applying a neural network algorithm called SONON to enhance defect detection in images. Laboratory experiments demonstrated the new sensors could detect smaller defects than previous methods. The overall aim is more accurate, automated inspections using portable, wearable equipment.High speed DDS controlled radar system for the identification of Surface Acou...
High speed DDS controlled radar system for the identification of Surface Acou...Simone Angela Winkler
油
This document describes a high-speed radar system for identifying moving surface acoustic wave tags. It consists of a direct digital synthesizer, analog-to-digital converter, digital signal processor, and RF frontend to generate chirp signals, acquire return signals, and perform frequency analysis to identify tags. Measurements show the system can identify two tags in motion at 6.9 m/s over a period of less than 10 ms. The system is able to perform measurements of tags in motion with the same signal-to-noise ratio as for static tags.Meander-line structure for eddy-current sensing of magnetic nanoparticles
Meander-line structure for eddy-current sensing of magnetic nanoparticlesMontserrat Rivas
油
This document discusses a meander-line structure for detecting superparamagnetic nanoparticles using eddy current sensing. It finds that copper-based sensors are highly sensitive and cost-effective for detecting nanoparticles. The best sensor designs use numerous thin, narrow copper traces in a spiral-like configuration operating at high frequency. This induces electromotive forces in the copper from the magnetic nanoparticles, allowing for their sensitive detection.20140804161516551 194891
20140804161516551 194891Isaac Herrera
油
The document discusses research on using defects in diamond, such as nitrogen vacancy (NV) centers, as quantum spin sensors for applications in sensing, simulation, and biology. Key points discussed include:
1) NV centers in diamond can be used as atomic-scale magnetic field sensors through optically detected magnetic resonance.
2) Techniques like dynamical decoupling can be used to protect the NV center spin against noise in the environment.
3) Applications discussed include using NV centers to detect individual nuclear spins on diamond surfaces and in biological molecules like ferritin, as well as using patterned diamond surfaces to simulate spin lattices.
4) The research aims to address challenges in initializing, controlling, and readingTalents up grazioli cesare_20_05_2013
Talents up grazioli cesare_20_05_2013AREA Science Park
油
The document details a project focused on ultrafast phenomena research conducted between Trieste and Nova Gorica, emphasizing the application of ultrafast spectroscopy techniques in studying novel materials. It highlights the evolution of ultrafast technology, citing significant developments and collaborations with various scientific institutions, alongside advancements in laser systems and light sources for conducting experiments. Additionally, it discusses ongoing and future research goals, particularly those involving femtochemistry and advanced spectroscopy methods.Atomic force microscopy(afm)
Atomic force microscopy(afm) vishal gupta
油
- Atomic force microscopy (AFM) uses a cantilever with a sharp tip to scan over a sample surface and produce images of its topography. The tip is moved in the x, y, and z directions using a piezoelectric scanner. Interactions between the tip and sample are measured to create images with sub-nanometer resolution.
- AFM can operate in different modes depending on whether the tip is in contact with the surface or oscillating above it. Force-distance curves can also be collected to measure interaction forces. AFM has various applications in biology, materials science, and nanotechnology.Ground Penetrating Radar
Ground Penetrating RadarVARUN KUMAR
油
The document discusses ground-penetrating radar (GPR) modeling and signal processing, highlighting literature, principles, challenges, and observations in the field. It emphasizes the importance of selecting appropriate transmitter power and frequency for effective GPR design, as well as the trade-offs between frequency and resolution for subsurface analysis. Future work includes addressing signal errors and optimizing performance for more accurate subsurface detection.Ldb Convergenze Parallele_sorba_01
Ldb Convergenze Parallele_sorba_01laboratoridalbasso
油
This document provides an overview of the Institute of Nanoscience and its research activities related to semiconductor nanostructures and their applications. The institute has over 250 researchers studying the fundamental properties and manipulation of nanoscale systems through synthesis, fabrication, experimental and theoretical studies of nanostructures and devices. Key areas of research include semiconductor nanowires for applications in electronics, optoelectronics and spintronics. Heterostructured nanowires of InAs, InSb and InP are investigated for high mobility transistors and terahertz detectors. Strain-driven self-assembly is used to create 3D nanostructures for applications in sensing, energy harvesting and photonics.El CNA como centro de ensayos de irradiaci坦n dentro de una ICTS interdiscipli...
El CNA como centro de ensayos de irradiaci坦n dentro de una ICTS interdiscipli...Facultad de Inform叩tica UCM
油
The document presents an overview of the Centro Nacional de Aceleradores (CNA) and its role as a center for irradiation testing within an interdisciplinary research framework in Spain. It highlights the historical development, main equipment, and various applications across fields such as material science, medicine, art, and environmental research. The document also details the different types of radiation testing capabilities, projects, and collaborations relevant to scientific and medical advancements.Characterization of Photonic Crystal Fiber
Characterization of Photonic Crystal FiberSurbhi Verma
油
The document discusses the characterization of photonic crystal fibers (PCFs) using a far field measurement method. It outlines the guiding mechanisms of PCFs, including modified total internal reflection and photonic bandgap effects, along with the fabrication techniques and effective index methods for evaluating their properties. Additionally, it details the mathematical aspects of far field intensity patterns and their relationship to the geometry of PCFs, as well as the process for obtaining various parameters critical to their characterization.Parra - Ultrashort Pulse (USP) Laser -- Matter Interactions - Spring Review 2013
Parra - Ultrashort Pulse (USP) Laser -- Matter Interactions - Spring Review 2013The Air Force Office of Scientific Research
油
1) The document discusses ultrashort pulse (USP) laser interactions with matter, including microresonator-based optical frequency combs, high peak power laser processing of materials, and extreme ultraviolet comb spectroscopy.
2) It outlines several research initiatives exploring topics like dynamics of microresonator comb generation, laser ablation mechanisms with ultrashort pulses, and dual comb spectroscopy in the extreme ultraviolet.
3) The document also covers applications of USP lasers in metrology, material science, and particle acceleration, and research into relativistic laser-matter interactions generating bright x-ray sources.True_Silver_ Nat. Photonics 6 2016
True_Silver_ Nat. Photonics 6 2016Supriya Pillai
油
This document summarizes several recent research papers on topics related to biophotonics, quantum optics, quantum dots, and plasmonics. It discusses the following key points:
1) Scientists created rings of living cells that act as optically-controlled oscillators for electrical waves, which could store topological bits of information.
2) Researchers experimentally demonstrated that resonance fluorescence is modified using squeezed light, confirming 30-year old predictions.
3) A device was developed that can sort photons by number and polarization using a quantum dot in a microcavity.
4) Improved characterization of silver's optical constants was reported to reduce underestimation of plasmonic loss.Ivanda eucmos 2004 last
Ivanda eucmos 2004 lastMile Ivanda
油
The document summarizes a presentation given by M. Ivanda at the Ruer Bo邸kovi Institute in Zagreb, Croatia on using Raman spectroscopy and high-resolution transmission electron microscopy (HRTEM) to determine the size distribution of oxide and semiconductor nanoparticles. Ivanda discusses the theoretical background of Raman scattering in nanosized particles and describes experiments analyzing TiO2, SnO2, and CdS nanoparticles prepared by various methods. The results show Raman spectroscopy can provide the particle size distribution and compare well to distributions measured by HRTEM, offering a simple alternative to the more complex HRTEM technique.Workshop Biosensor Brief
Workshop Biosensor Briefazadehoxford
油
This document discusses characterization techniques for biosensors. It describes biosensors and immunosensors, and techniques used to characterize surfaces, including atomic force microscopy (AFM) to measure roughness, X-ray photoelectron spectroscopy (XPS) to determine composition and contamination, and time-of-flight secondary ion mass spectrometry (ToF-SIMS) for molecular fingerprinting and distribution. Self-assembled monolayers (SAMs) are discussed for functionalizing surfaces. Microcantilevers are also described as biological sensors operating in static or dynamic mode.Ferroelectric nanostructures and their processing issues
Ferroelectric nanostructures and their processing issues*即 *.存存
油
This document discusses ferroelectric nanostructures and their processing issues. It covers several topics including important events in the history of ferroelectricity, factors that influence ferroelectric properties at the nanoscale, and different invasive and non-invasive approaches for processing ferroelectric nanostructures such as top-down methods like focused ion beam patterning and bottom-up methods like self-assembly. Potential applications of ferroelectric nanostructures are also mentioned, including data storage, piezoelectric actuators, and pyroelectric detectors.More Related Content
What's hot (9)
Paper presentation nanotech
Paper presentation nanotechNashwa Osman
油
Nanoparticles are particles between 1-100 nanometers in size. They exhibit unique physical and chemical properties compared to larger particles of the same material due to their high surface area to volume ratio. Some nanoparticles occur naturally from sources like volcanoes and forest fires, while others are engineered for use in products and technologies. The small size of nanoparticles allows them to more easily enter the body through inhalation, ingestion, or skin absorption, with potential toxic effects depending on dose, size, shape, and composition. Strategies to control nanoparticle exposure include proper ventilation and use of protective equipment.POSTER_RONAK
POSTER_RONAKRonak Oswal
油
Synchrotron X-ray topography (SXRT) is a non-destructive method for studying crystalline materials like defects and strain fields within crystals. Using a white beam for SXRT provides benefits such as not requiring sample orientation, recording multiple reflections simultaneously, visualizing all crystal parts at once with good resolution. X-ray diffraction is also non-destructive and provides information on chemical composition and crystal structure of materials through Bragg's law relating wavelength and diffraction angle. Section mode SXRT imaging is essential to avoid sample heating from large beams and allow separation of cap and substrate images for future reconstruction of MEMS structures. CdTe samples showed high quality with some scratches and inclusions observed.Nanotechnology
NanotechnologySalah N. Farhan
油
Nanotechnology is the manipulation of matter on an atomic, molecular, and supramolecular scale. The three key points are:
1) The concept of nanotechnology was first proposed in 1959, but it emerged in the 1980s with advances like the scanning tunneling microscope and discovery of fullerenes. The term was coined in 1974.
2) Nanotechnology involves engineering materials and devices within the size range of 1-100 nanometers. At this scale, the properties of materials differ from those at larger scales.
3) Potential applications of nanotechnology include electronics, energy storage, drug delivery, biotechnology, and new materials with unique properties. It is estimated nanotechnology will become a trillion dollar market byNanotechnology in microbiology
Nanotechnology in microbiologyMayuri Rani
油
The document discusses various applications of nanotechnology in microbiology. It begins by defining nanotechnology as the manipulation of matter at the nanoscale of 1 to 100 nm. Some key applications discussed include using quantum dots for pathogen detection through fluorescence, using gold and silver nanoparticles in assays like sol particle immunoassays, and using magnetic nanoparticles in detection methods like magnetic relaxation switches that can detect as few as 5 viral particles. The document also discusses nanoparticle-based methods that enable faster, more sensitive detection of pathogens without sample preparation.Magnetic beads in MedLab Magazine issue 02.009
Magnetic beads in MedLab Magazine issue 02.009Fabrice Sultan
油
The document discusses magnetic nanoparticles and microspheres, including Estapor速 microspheres and MagPrep速 particles, and their various applications. Estapor速 microspheres offer advantages for immobilizing antibodies or antigens due to their ability to efficiently bind target molecules. Magnetic particles provide an alternative to conventional chromatography that allows automation and replacement of centrifugation or organic solvents with simple magnetic separation. Estapor速 microspheres and MagPrep速 particles combine these benefits with features like high magnetite content and a non-porous surface, enabling fast migration in magnetic fields while binding targets with high signal and low noise.Development of tribological PVD coatings
Development of tribological PVD coatingsInstituto Nacional de Engenharia de Superf鱈cies
油
The document discusses the development of tribological PVD coatings. It provides examples of materials and processing techniques used to develop such coatings, including pulsed magnetron sputtering and modulated pulse power. It also describes experiments conducted to study the effects of residual stress gradients in PVD TiN coatings on wear resistance, where coatings with varying stress levels were produced and evaluated using scratch and pin-on-disk testing.Bio nano (Top-down bottom up approach)
Bio nano (Top-down bottom up approach) ManojKumar6080
油
This document discusses nanotechnology and provides an overview of top-down and bottom-up approaches to nanomaterial synthesis. It describes that the bottom-up approach involves molecular components arranging themselves into more complex structures from the smallest level, while the top-down approach uses larger external tools to shape and assemble materials into the desired nanoscale structures. Characterization techniques for nanomaterials include SEM, TEM, AFM, XRD, FTIR, and NMR. Applications mentioned include medical imaging, disease detection, agriculture, and environmental remediation.Ndemetalassemb
Ndemetalassembmartindudziak
油
This document summarizes research on using magneto-optic imaging for non-destructive testing of metal structures. It describes developing new thin-film sensors with improved sensitivity, integrating the sensors and image recognition algorithms into a portable system, and applying a neural network algorithm called SONON to enhance defect detection in images. Laboratory experiments demonstrated the new sensors could detect smaller defects than previous methods. The overall aim is more accurate, automated inspections using portable, wearable equipment.High speed DDS controlled radar system for the identification of Surface Acou...
High speed DDS controlled radar system for the identification of Surface Acou...Simone Angela Winkler
油
This document describes a high-speed radar system for identifying moving surface acoustic wave tags. It consists of a direct digital synthesizer, analog-to-digital converter, digital signal processor, and RF frontend to generate chirp signals, acquire return signals, and perform frequency analysis to identify tags. Measurements show the system can identify two tags in motion at 6.9 m/s over a period of less than 10 ms. The system is able to perform measurements of tags in motion with the same signal-to-noise ratio as for static tags.High speed DDS controlled radar system for the identification of Surface Acou...
High speed DDS controlled radar system for the identification of Surface Acou...Simone Angela Winkler
油
Similar to Nba magnetic materials (20)
Meander-line structure for eddy-current sensing of magnetic nanoparticles
Meander-line structure for eddy-current sensing of magnetic nanoparticlesMontserrat Rivas
油
This document discusses a meander-line structure for detecting superparamagnetic nanoparticles using eddy current sensing. It finds that copper-based sensors are highly sensitive and cost-effective for detecting nanoparticles. The best sensor designs use numerous thin, narrow copper traces in a spiral-like configuration operating at high frequency. This induces electromotive forces in the copper from the magnetic nanoparticles, allowing for their sensitive detection.20140804161516551 194891
20140804161516551 194891Isaac Herrera
油
The document discusses research on using defects in diamond, such as nitrogen vacancy (NV) centers, as quantum spin sensors for applications in sensing, simulation, and biology. Key points discussed include:
1) NV centers in diamond can be used as atomic-scale magnetic field sensors through optically detected magnetic resonance.
2) Techniques like dynamical decoupling can be used to protect the NV center spin against noise in the environment.
3) Applications discussed include using NV centers to detect individual nuclear spins on diamond surfaces and in biological molecules like ferritin, as well as using patterned diamond surfaces to simulate spin lattices.
4) The research aims to address challenges in initializing, controlling, and readingTalents up grazioli cesare_20_05_2013
Talents up grazioli cesare_20_05_2013AREA Science Park
油
The document details a project focused on ultrafast phenomena research conducted between Trieste and Nova Gorica, emphasizing the application of ultrafast spectroscopy techniques in studying novel materials. It highlights the evolution of ultrafast technology, citing significant developments and collaborations with various scientific institutions, alongside advancements in laser systems and light sources for conducting experiments. Additionally, it discusses ongoing and future research goals, particularly those involving femtochemistry and advanced spectroscopy methods.Atomic force microscopy(afm)
Atomic force microscopy(afm) vishal gupta
油
- Atomic force microscopy (AFM) uses a cantilever with a sharp tip to scan over a sample surface and produce images of its topography. The tip is moved in the x, y, and z directions using a piezoelectric scanner. Interactions between the tip and sample are measured to create images with sub-nanometer resolution.
- AFM can operate in different modes depending on whether the tip is in contact with the surface or oscillating above it. Force-distance curves can also be collected to measure interaction forces. AFM has various applications in biology, materials science, and nanotechnology.Ground Penetrating Radar
Ground Penetrating RadarVARUN KUMAR
油
The document discusses ground-penetrating radar (GPR) modeling and signal processing, highlighting literature, principles, challenges, and observations in the field. It emphasizes the importance of selecting appropriate transmitter power and frequency for effective GPR design, as well as the trade-offs between frequency and resolution for subsurface analysis. Future work includes addressing signal errors and optimizing performance for more accurate subsurface detection.Ldb Convergenze Parallele_sorba_01
Ldb Convergenze Parallele_sorba_01laboratoridalbasso
油
This document provides an overview of the Institute of Nanoscience and its research activities related to semiconductor nanostructures and their applications. The institute has over 250 researchers studying the fundamental properties and manipulation of nanoscale systems through synthesis, fabrication, experimental and theoretical studies of nanostructures and devices. Key areas of research include semiconductor nanowires for applications in electronics, optoelectronics and spintronics. Heterostructured nanowires of InAs, InSb and InP are investigated for high mobility transistors and terahertz detectors. Strain-driven self-assembly is used to create 3D nanostructures for applications in sensing, energy harvesting and photonics.El CNA como centro de ensayos de irradiaci坦n dentro de una ICTS interdiscipli...
El CNA como centro de ensayos de irradiaci坦n dentro de una ICTS interdiscipli...Facultad de Inform叩tica UCM
油
The document presents an overview of the Centro Nacional de Aceleradores (CNA) and its role as a center for irradiation testing within an interdisciplinary research framework in Spain. It highlights the historical development, main equipment, and various applications across fields such as material science, medicine, art, and environmental research. The document also details the different types of radiation testing capabilities, projects, and collaborations relevant to scientific and medical advancements.Characterization of Photonic Crystal Fiber
Characterization of Photonic Crystal FiberSurbhi Verma
油
The document discusses the characterization of photonic crystal fibers (PCFs) using a far field measurement method. It outlines the guiding mechanisms of PCFs, including modified total internal reflection and photonic bandgap effects, along with the fabrication techniques and effective index methods for evaluating their properties. Additionally, it details the mathematical aspects of far field intensity patterns and their relationship to the geometry of PCFs, as well as the process for obtaining various parameters critical to their characterization.Parra - Ultrashort Pulse (USP) Laser -- Matter Interactions - Spring Review 2013
Parra - Ultrashort Pulse (USP) Laser -- Matter Interactions - Spring Review 2013The Air Force Office of Scientific Research
油
1) The document discusses ultrashort pulse (USP) laser interactions with matter, including microresonator-based optical frequency combs, high peak power laser processing of materials, and extreme ultraviolet comb spectroscopy.
2) It outlines several research initiatives exploring topics like dynamics of microresonator comb generation, laser ablation mechanisms with ultrashort pulses, and dual comb spectroscopy in the extreme ultraviolet.
3) The document also covers applications of USP lasers in metrology, material science, and particle acceleration, and research into relativistic laser-matter interactions generating bright x-ray sources.True_Silver_ Nat. Photonics 6 2016
True_Silver_ Nat. Photonics 6 2016Supriya Pillai
油
This document summarizes several recent research papers on topics related to biophotonics, quantum optics, quantum dots, and plasmonics. It discusses the following key points:
1) Scientists created rings of living cells that act as optically-controlled oscillators for electrical waves, which could store topological bits of information.
2) Researchers experimentally demonstrated that resonance fluorescence is modified using squeezed light, confirming 30-year old predictions.
3) A device was developed that can sort photons by number and polarization using a quantum dot in a microcavity.
4) Improved characterization of silver's optical constants was reported to reduce underestimation of plasmonic loss.Ivanda eucmos 2004 last
Ivanda eucmos 2004 lastMile Ivanda
油
The document summarizes a presentation given by M. Ivanda at the Ruer Bo邸kovi Institute in Zagreb, Croatia on using Raman spectroscopy and high-resolution transmission electron microscopy (HRTEM) to determine the size distribution of oxide and semiconductor nanoparticles. Ivanda discusses the theoretical background of Raman scattering in nanosized particles and describes experiments analyzing TiO2, SnO2, and CdS nanoparticles prepared by various methods. The results show Raman spectroscopy can provide the particle size distribution and compare well to distributions measured by HRTEM, offering a simple alternative to the more complex HRTEM technique.Workshop Biosensor Brief
Workshop Biosensor Briefazadehoxford
油
This document discusses characterization techniques for biosensors. It describes biosensors and immunosensors, and techniques used to characterize surfaces, including atomic force microscopy (AFM) to measure roughness, X-ray photoelectron spectroscopy (XPS) to determine composition and contamination, and time-of-flight secondary ion mass spectrometry (ToF-SIMS) for molecular fingerprinting and distribution. Self-assembled monolayers (SAMs) are discussed for functionalizing surfaces. Microcantilevers are also described as biological sensors operating in static or dynamic mode.Ferroelectric nanostructures and their processing issues
Ferroelectric nanostructures and their processing issues*即 *.存存
油
This document discusses ferroelectric nanostructures and their processing issues. It covers several topics including important events in the history of ferroelectricity, factors that influence ferroelectric properties at the nanoscale, and different invasive and non-invasive approaches for processing ferroelectric nanostructures such as top-down methods like focused ion beam patterning and bottom-up methods like self-assembly. Potential applications of ferroelectric nanostructures are also mentioned, including data storage, piezoelectric actuators, and pyroelectric detectors.Laboratory Raman spectroscopy ISP NASU
Laboratory Raman spectroscopy ISP NASU豫仍亳 亠亠于舒
油
This document provides information about the "Raman and Luminescence Submicron Spectroscopy" Laboratory located at the V. Lashkaryov Institute of Semiconductor Physics, National Academy of Science, Ukraine. The laboratory contains several lasers, spectrometers, microscopes, and temperature control equipment used to perform Raman and luminescence spectroscopy and mapping on semiconductor nanostructures with submicron spatial resolution. The laboratory studies properties such as chemical composition, strain, temperature, carrier mobility and concentration in nanostructures for applications in microelectronics and optoelectronics. Team members and their areas of research interest are also listed.paper presentation on fss 19 feb
paper presentation on fss 19 febANKUSH PRAJAPAT
油
(1) The document discusses frequency selective surfaces (FSS), which are periodic structures that perform filtering at microwave frequencies. FSS performance depends on factors like element geometry, conductivity, substrate properties, and array period/number.
(2) CST Microwave Studio is used to model and analyze FSS. An annular ring FSS design is proposed for dual-band operation in C-band and X-band. Simulation results show the resonant frequencies can be shifted by varying the ring spacing.
(3) Testing different substrate materials, a linear relationship is observed between the shift in bands, demonstrating the design's ability to achieve dual-band response through proper element and substrate selection.Nano research 2014 qian liu
Nano research 2014 qian liuQian Liu, phD
油
This document presents a method for rapid and cost-effective DNA quantification using superparamagnetic silica-coated magnetite nanoparticles (Fe3O4@SiO2), which form visible aggregates under specific conditions. The nanoparticles, about 200 nm in diameter, demonstrated higher sensitivity in DNA detection than commercial microscale beads, with a limit of detection at 4 kilobase-pair fragments. The method leverages image analysis for quantification and offers an accessible alternative to traditional DNA quantification techniques, showing promise for applications in forensic analysis and PCR amplification assistance.Week 9 - lecture 8.pptx
Week 9 - lecture 8.pptxchemeng87
油
This document discusses topics that will be covered in a course on nanobiosensors, including the history and applications of biosensors, principles of molecular recognition and signal transduction, sources and design of biological recognition elements, modeling of reactions for various biosensor applications, modification of sensor surfaces and immobilization techniques, detection methods and physical sensors, fabrication of biosensors, and data acquisition and analysis. Examples of commercial biosensors and recent developments in new-generation nano-engineered biosensors are also mentioned.2016.06.21 gmm csic NanoFrontMag
2016.06.21 gmm csic NanoFrontMagNanoFrontMag-cm
油
This document discusses magnetic nanowires and microwires. It describes how cylindrical nanowires of various compositions, diameters, and geometries have been synthesized using electrochemical methods. These include uniform nanowires, nanowires with modulated diameters, and multisegmented nanowires. Characterization of individual nanowires reveals correlation between their crystal structure, composition, and magnetic properties. Modulated nanowires have been shown to exhibit tailored reversal behavior compared to uniform nanowires. Various techniques including Lorentz microscopy and photoemission electron microscopy with x-ray magnetic circular dichroism have provided insights into spin configurations in these artificial nanowire systems.1-s2.0-S138614251400907X-main
1-s2.0-S138614251400907X-maingovindarasu kannan
油
This document reports on a study analyzing the molecular structure, vibrational spectra, and nonlinear optical properties of 4-Chloro-DL-phenylalanine (4CLPA) using density functional theory calculations. Specifically, the researchers recorded and analyzed the FTIR and FT-Raman spectra of 4CLPA. They investigated the equilibrium geometry, bonding features, and harmonic vibrational wavenumbers using DFT calculations. They also analyzed the predicted electronic absorption spectra from TD-DFT calculations compared to the measured UVVis spectrum. In addition, they calculated properties like the first order hyperpolarizability and frontier molecular orbitals to understand the charge interactions and reactivity of 4CLPA.Introduction to nanoscience and nanotechnology
Introduction to nanoscience and nanotechnologyaimanmukhtar1
油
The document discusses the introduction of nanoscience and nanotechnology, highlighting the properties and potential applications of nanomaterials, particularly focusing on metal single component and alloy nanowires synthesized via electrodeposition in an anodic aluminum oxide (AAO) template. Key concepts such as quantum confinement, localized surface plasmon resonance, and the mechanical properties of carbon nanotubes are covered, along with detailed experimental procedures for synthesizing these nanowires. Various applications in electronics, sensors, and energy storage are mentioned, showcasing the innovative uses of nanostructured materials.El CNA como centro de ensayos de irradiaci坦n dentro de una ICTS interdiscipli...
El CNA como centro de ensayos de irradiaci坦n dentro de una ICTS interdiscipli...Facultad de Inform叩tica UCM
油
Parra - Ultrashort Pulse (USP) Laser -- Matter Interactions - Spring Review 2013
Parra - Ultrashort Pulse (USP) Laser -- Matter Interactions - Spring Review 2013The Air Force Office of Scientific Research
油
Ad
More from Montserrat Rivas (9)
Cuieet Gamificaci坦nMontserrat Rivas
油
El documento analiza la ludificaci坦n como herramienta para motivar a estudiantes en el curso biling端e de 'waves and electromagnetism'. Se implementaron juegos en l鱈nea a trav辿s de la plataforma Game Training, logrando un aumento en la participaci坦n y mejoras en el aprendizaje. Las encuestas mostraron una percepci坦n positiva del uso de juegos para la mejora de notas en ex叩menes.Detecci坦n ultrarr叩pida mediante marcaje magn辿ticoMontserrat Rivas
油
El grupo de investigaci坦n NBA se centra en el desarrollo de m辿todos para identificar biomarcadores utilizando nanomateriales magn辿ticos, que permiten la detecci坦n de sustancias bioqu鱈micas y presentan ventajas sobre t辿cnicas tradicionales. Estos nanomarcadores mejoran la sensibilidad y reducen falsos negativos en an叩lisis bioqu鱈micos, siendo aplicables en sectores como la salud, la industria alimentaria y el tratamiento de aguas. La combinaci坦n de estos materiales con sensores electromagn辿ticos ofrece un enfoque innovador y eficiente en diagn坦sticos cl鱈nicos y an叩lisis industriales.Ismanam2013 for cs_poster
Ismanam2013 for cs_posterMontserrat Rivas
油
This document discusses using FORC differential dissection to analyze soft biphase magnetic ribbons. It presents three samples - a soft sample containing an amorphous matrix, a hard sample with no amorphous matrix, and a biphase sample containing both hard and soft phases. FORC differential dissection can discriminate between magnetic phases and identify dominant interactions. In the soft sample, the amorphous matrix produces a peak in the SFD and negative coupling spots. In the hard sample, these features also indicate positive coupling. In the biphase sample, the peaks move closer together, also showing positive mutual interaction between the phases.Poster 2010 IEEE Summer School
Poster 2010 IEEE Summer SchoolMontserrat Rivas
油
The project focuses on the in vitro labeling, magnetic detection, and separation of tumor cells using magnetite nanoparticles and functionalized nickel nanowires bound to tumor-specific antibodies. These nano-structures are detected by a magnetoimpedance sensor based on the giant magnetoimpedance effect of a co-based metallic ribbon, demonstrating low cytotoxicity without biocompatible coatings. The study produced iron oxide nanoparticles coated with silica and conjugated to targeting ligands to enhance detection capabilities.Poster NANOfutures 2010
Poster NANOfutures 2010 Montserrat Rivas
油
The document outlines a project aimed at in vitro labeling, magnetic detection, and separation of tumor cells using functionalized magnetite nanoparticles bound to specific antibodies. These nanoparticles are detected via a magnetic biosensor employing the giant magnetoimpedance effect, with a focus on optimizing silica coating thickness for stability and magnetic response. The research is conducted by a collaboration involving the University Hospital of Asturias and Nanogap SL, funded by the Asturias government and the Ministry of Foreign Affairs.Conferencia Santiago de Cuba 2011Montserrat Rivas
油
Este documento describe las investigaciones de un grupo de la Universidad de Oviedo sobre el desarrollo de nanopart鱈culas magn辿ticas y su aplicaci坦n para marcar y detectar c辿lulas cancerosas. El grupo fabrica nanopart鱈culas magn辿ticas y las funcionaliza para marcar c辿lulas cancerosas. Luego, usan un sensor magn辿tico basado en magnetoimpedancia para separar y detectar las c辿lulas marcadas. El documento tambi辿n cubre el desarrollo de materiales magn辿ticos ultrar叩pidos para uso en sensores.2011 ISMANAM FeAl Pablo
2011 ISMANAM FeAl PabloMontserrat Rivas
油
This study investigates the inverse Wiedemann effect (IWE) in Fe-Al alloys, particularly the Fe81Al19 alloy known for its giant magnetostriction, to develop a sensitive torque sensor. Factors influencing the IWE's sensitivity and the effects of annealing and alloy composition on the sensor's performance were examined, showing promising results with certain compositions leading to significant IWE. The research employs advanced fabrication techniques and automatic experimentation systems to enhance measurement precision.2011 ISMANAM Magnetoimpedance David
2011 ISMANAM Magnetoimpedance DavidMontserrat Rivas
油
The document discusses research on biased giant magnetoimpedance (GMI) in Co70Fe5Si15B10 nanocrystalline ribbons, highlighting their excellent sensitivity and response to magnetic fields. It indicates that nanocrystallization and premagnetization significantly enhance the GMI effect, particularly for weak magnetic field variations near zero. The study emphasizes the importance of annealing conditions on sensitivity and the interaction between different magnetic phases in the material.2011 09 bienal fisicaMontserrat Rivas
油
El documento describe el desarrollo de un sistema de diagn坦stico precoz de enfermedades utilizando nanohilos magn辿ticos y un sensor basado en magnetoimpedancia gigante. Se aborda la detecci坦n de los nanohilos en una membrana espec鱈fica con m辿todos robustos de baja sensibilidad. Se presentan conclusiones sobre la mejora del dise単o y la miniaturizaci坦n del sistema para una mayor efectividad en la detecci坦n.Ad
Nba magnetic materials
- 1. Nanobioanalysis: a multidisciplinar challenge Montserrat Rivas, Jos辿 ngel Garc鱈a, Jos辿 Carlos Mart鱈nez
- 2. FORC technique SPION RF biosensor Research environment
- 4. Prof. Marcos Tejedor Magnetism & Magnetic Materials in the University of Oviedo
- 5. NanoBioAnalysis (NBA) Oviedo University Universitary Central Hospital Materials Institute
- 6. NanoBioAnalysis (NBA) Magnetic Materials Integrated Optics Electrochemical sensors Electrophoresis & Paper-based tech Clinical Immunology & Microbiology Biotechnology & Biomedical Essays
- 7. FORC technique SPION RF biosensor Research environment
- 9. FORC: First-Order Reversal Curves
- 10. SFD: Switching Field Distribution 麹訣ext,詩= ext 詩
- 11. FORC diagram = 12 2 詩ロ″詩 J.C. Mart鱈nez-Garc鱈a et al., J. Phys. D: Apl. Phys. 47 (2014) 015001
- 12. Detection of non-interacting single domain particles using firstorder reversal curve diagrams R. Egli et al, Geochemistry, Geophysics, Geosystems 11 (2010) FORC diagrams measured on the Lake Ely sediment sample.
- 13. Magnetic and M旦ssbauer Spectral Study of Core/Shell Structured Fe/Au Nanoparticles S. J. Cho et al., Chemistry of Materials 18 (2006) 960
- 14. Set of FORCs J.C. Mart鱈nez-Garc鱈a et al., J. Alloy Compd. (2014)
- 15. Set of SFDs
- 16. FORC differential dissection of soft biphase magnetic ribbons J.C. Mart鱈nez-Garc鱈a et al., J. Alloy Compd. (2014)
- 17. Co nanostructures in ordered templates: comparative FORC analysis Co array samples of (a) nanowires with diameters of 65 nm, (b) nanopillars with diameters of 60 nm, and (c) nanotubes with diameters of 65 nm. M.P. Proenca, Nanotechnology 24 (2013) 475703
- 18. FORC technique SPION RF biosensor Research environment
- 20. Magnetoimpedance Co70Fe5Si10B15 amorphous ribbon
- 21. Samples and methods Test fixture ribbon to impedance analyser (1-110 MHz) + Helmholz coils (dc field) Superparamagnetic 10 nm Fe3O4 nanoparticles (SPIONs) NPs deposited onto blotting paper strips
- 22. NPs detection with Co (GMI)
- 23. Magnetoimpedance Co70Fe5Si10B15 amorphous ribbon
- 25. NPs detection with Cu
- 26. NPs detection with Cu Cu-ribbon Co-ribbon
- 29. NPs detection with PCB1 PCB1 Cu-ribbon x 5
- 31. NPs detection with meander-structure Meander PCB1 x 3
- 33. NPs detection with spiral-sensor PCB1 Spiral x 7
- 35. NPs detection with 5-turn spiral 5-turns PCB1 x 30
- 36. Origin of the detection Changing magnetic field Induced electromotive forces Switching magnetic moment
- 37. Skin effect 400 mm 35 mm Active area Cross-section of the conductor track
- 38. Proximity effect Cross-section of three parallel traces
- 40. Signal versus SPION mass PWB5S
- 41. LFT: Lateral Flow Test Sample Conjugated SPIONs Test line Control line Magnetic immunoassay
- 44. Conclusions
- 45. Electromagnetic detection of SPIONs: highly sensitive, low-cost and simple fabrication/handling. Biosensing via nanoparticles detection Nano Bio Sensor Biomarkers NPs synthesis Size-effects Characterization Biotoxins Cells Antibodies Proteins Biointerfacing
- 46. idemm@uniovi.es
- 47. NanoBioAnalysis March 2012 http://grupos.uniovi.es/web/nba Thank you for your kind attention