Summary report: Paper-based wearable ammonia gas sensorHajime Fujita
?
Paper electronics hold great potential that could replace conventional plastic electronics. Paper electronics are disposable and cost-effective, two distinct advantages for developing broadly accessible devices. However, the approach for functionalizing paper with electronic materials has not been sufficiently characterized from a chemical point of view. As a result, most paper-based electronic devices have an inferior electrical performance compared with plastic-based devices, which largely constrains their practical use. The design and fabrication of electronic materials on paper needs refinement to make paper electronics a valid, practical option. Here, we report a high-performance, paper-based, wearable ammonia sensor comprising composite poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and iron(III) compounds. We combined different printing and coating methods to develop the ammonia-sensitive, composite substance PEDOT:PSS:Fe3+ on paper. Our sensor achieves 10-times smaller size than the conventional sensor on Kapton film and high tolerance for humidity without impairing practical sensor response. We demonstrate the utility of our device toward wearable ammonia-sensing in a facial mask and a nasal filter; wireless battery-free monitoring of food spoilage; and wireless battery-free monitoring of the ammonia level in a paper diaper. All the comprising materials—cellulose paper, PEDOT:PSS, and iron(III) compounds—are abundant and eco-friendly, a further benefit for applications in which biological tissues or disposable wearable products are eventually discarded with the sensor attached. Our approach may open the door to advanced healthcare based on ubiquitous wearable sensing.
【梗概 Summary】
既存施設?地場産業?観光客の間にリンケージ構築によって新城市の地域振興を行うために、宿泊施設を起点とした6次産業化のモデルを提案した。
In order to promote the regional development of Shinshiro City by linkage among existing facilities, local industry and tourists, I proposed a model of sixth industrialization starting from accommodation facilities as a "seminar student" in Nishida Laboratory, Tokyo Tech.
(English Title: "The Creative Sixth Industrialization driven by youth in Shinchiro City, Aichi Prefecture")
【基本情報 Info】
公共政策フォーラム2018 in しんしろ
2018年11月24日?11月25日 / 新城文化会館
Public Policy Studies Forum 2018 (Public Policy Studies Association Japan)
Dengue virus, which is in the flavivirus family, is a worldwide spread virus and has huge impact on society, however, not many developing countries are recognizing its danger. Dengue virus is unique in terms of its four different serotypes. Multiple infection can easily cause severe dengue, appearing hemorrhage and organ damage. It is important to grasp which serotype the patient is infected, however, there is not enough data about each serotype in a year. To tackle the situation, we succeeded in the development of the serotype prediction system using stochastic process analysis. This system can predict the patient's serotype by simulating the past data. We also developed the simple and fast testing kit that can detect serotype with fluorescence, so that we can check the patient easily and get enough data to estimate the patients’ serotypes more accurate. In the future, this system can contribute to other flavivirus detection system.
This document provides a presentation on agriculture and rural development in Senegal. It begins with an introduction to Senegal and then discusses agriculture in the country's past, present, and future. It notes current problems in Senegal's agriculture such as drought, flooding, and lack of infrastructure. The presentation then examines the root causes of these problems and potential solutions. It concludes with thanks and identifies the presentation group.
Summary report: Paper-based wearable ammonia gas sensorHajime Fujita
?
Paper electronics hold great potential that could replace conventional plastic electronics. Paper electronics are disposable and cost-effective, two distinct advantages for developing broadly accessible devices. However, the approach for functionalizing paper with electronic materials has not been sufficiently characterized from a chemical point of view. As a result, most paper-based electronic devices have an inferior electrical performance compared with plastic-based devices, which largely constrains their practical use. The design and fabrication of electronic materials on paper needs refinement to make paper electronics a valid, practical option. Here, we report a high-performance, paper-based, wearable ammonia sensor comprising composite poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and iron(III) compounds. We combined different printing and coating methods to develop the ammonia-sensitive, composite substance PEDOT:PSS:Fe3+ on paper. Our sensor achieves 10-times smaller size than the conventional sensor on Kapton film and high tolerance for humidity without impairing practical sensor response. We demonstrate the utility of our device toward wearable ammonia-sensing in a facial mask and a nasal filter; wireless battery-free monitoring of food spoilage; and wireless battery-free monitoring of the ammonia level in a paper diaper. All the comprising materials—cellulose paper, PEDOT:PSS, and iron(III) compounds—are abundant and eco-friendly, a further benefit for applications in which biological tissues or disposable wearable products are eventually discarded with the sensor attached. Our approach may open the door to advanced healthcare based on ubiquitous wearable sensing.
【梗概 Summary】
既存施設?地場産業?観光客の間にリンケージ構築によって新城市の地域振興を行うために、宿泊施設を起点とした6次産業化のモデルを提案した。
In order to promote the regional development of Shinshiro City by linkage among existing facilities, local industry and tourists, I proposed a model of sixth industrialization starting from accommodation facilities as a "seminar student" in Nishida Laboratory, Tokyo Tech.
(English Title: "The Creative Sixth Industrialization driven by youth in Shinchiro City, Aichi Prefecture")
【基本情報 Info】
公共政策フォーラム2018 in しんしろ
2018年11月24日?11月25日 / 新城文化会館
Public Policy Studies Forum 2018 (Public Policy Studies Association Japan)
Dengue virus, which is in the flavivirus family, is a worldwide spread virus and has huge impact on society, however, not many developing countries are recognizing its danger. Dengue virus is unique in terms of its four different serotypes. Multiple infection can easily cause severe dengue, appearing hemorrhage and organ damage. It is important to grasp which serotype the patient is infected, however, there is not enough data about each serotype in a year. To tackle the situation, we succeeded in the development of the serotype prediction system using stochastic process analysis. This system can predict the patient's serotype by simulating the past data. We also developed the simple and fast testing kit that can detect serotype with fluorescence, so that we can check the patient easily and get enough data to estimate the patients’ serotypes more accurate. In the future, this system can contribute to other flavivirus detection system.
This document provides a presentation on agriculture and rural development in Senegal. It begins with an introduction to Senegal and then discusses agriculture in the country's past, present, and future. It notes current problems in Senegal's agriculture such as drought, flooding, and lack of infrastructure. The presentation then examines the root causes of these problems and potential solutions. It concludes with thanks and identifies the presentation group.