Ultra-flexible Freestanding ZnO Nanosheets: A Novel Material for Highly Sensitive Chemiresistive Sensors
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- PONNUSAMY DHIVYA
- 東海大 東海大学マイクロ・ナノ研究開発センター
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- MANI GANESH KUMAR
- 東海大 東海大学マイクロ・ナノ研究開発センター
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- 齋藤 飛鳥
- 東海大 工学研究科 機械工学専攻
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- 八十田 穣
- 東海大 総合理工学研究科 総合理工学専攻
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- 水流添 岳
- 東海大 工学研究科 機械工学専攻
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- 槌谷 和義
- 東海大 東海大学 精密工学科
抄録
Exhaled human breath consists mixture of numerous organic and inorganic compounds with concentrations ranging from ppb to ppm. Currently, number of biomarkers were identified in breath samples that could be used to identify the diseases. Among which ammonia (NH3) has been proposed as a potential biomarker in monitoring hemodialysis (HD) adequacy. Free standing nanosheets may offer excellent flexibility as well as high sensing characteristics, moreover can be deposited on biocompatible substrates like Poly lactic acid (PLLA). Many nanomaterials can be deposited on single nanosheets and can be used a skin patch. First, polyvinyl alcohol (PVA)/PLLA layers were initially spin coated on Si substrates and then zinc oxide (ZnO) was deposited on PLLA by RF magnetron sputtering technique. Then, PVA layer was sacrificed in water and free standing PLLA/ZnO layer was collected. Finally the PLLA/ZnO nanosheets were transferred into interdigitated electrode for sensing studies. Meanwhile, their structural, elemental and morphological properties were investigated by XRD, EDS, XPS and FE-SEM. To probe the selectivity nature of the sensing elements, PLLA/ZnO nanosheets were tested with various interfering compounds. The transient resistance response, stability, response and recovery times were also investigated.
収録刊行物
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- 精密工学会学術講演会講演論文集
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精密工学会学術講演会講演論文集 2017A (0), 717-718, 2017
公益社団法人 精密工学会
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- CRID
- 1390282680634214656
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- NII論文ID
- 130006434551
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
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