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公开(公告)号:US20130171738A1
公开(公告)日:2013-07-04
申请号:US13704934
申请日:2011-06-17
申请人: Hyungryul Johnny Choi , Ayse Asatekin Alexiou , Se Young Yang , Christy D. Petruczok , Karen K. Gleason , Nicholas M. Patrikalakis , George Barbastathis
发明人: Hyungryul Johnny Choi , Ayse Asatekin Alexiou , Se Young Yang , Christy D. Petruczok , Karen K. Gleason , Nicholas M. Patrikalakis , George Barbastathis
IPC分类号: G01N27/06
CPC分类号: G01N27/06 , G01N27/3278
摘要: A chemical sensor that works while being submerged in a highly conductive medium is described. The chemical sensor includes hydrophobic structures that are distributed on conductive electrodes and are separated by small air cavities while submerged in the conductive medium. The hydrophobic structures are arranged such that their hydrophobicity varies in response to exposure to a target analyte. The change in the level of hydrophobicity results in permeation of the conductive liquid on to the conductive electrodes, thereby reducing the resistance levels between the conductive electrodes. The sensor indicates presence of the target analyte in response to detection of a change in resistance between at least two of the conductive electrodes.
摘要翻译: 描述了在浸没在高导电介质中时工作的化学传感器。 该化学传感器包括分布在导电电极上的疏水性结构,并且在浸没在导电介质中时被小空气腔分开。 疏水结构被布置成使得它们的疏水性随着暴露于目标分析物而变化。 疏水性水平的变化导致导电液体渗透到导电电极,从而降低导电电极之间的电阻水平。 响应于检测至少两个导电电极之间的电阻变化,传感器指示目标分析物的存在。
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公开(公告)号:US10478802B2
公开(公告)日:2019-11-19
申请号:US14274642
申请日:2014-05-09
申请人: Robert E. Cohen , Michael F. Rubner , Gareth H. McKinley , George Barbastathis , Hyungryul Johnny Choi , Kyu Chul Park , Hyo Min Lee
发明人: Robert E. Cohen , Michael F. Rubner , Gareth H. McKinley , George Barbastathis , Hyungryul Johnny Choi , Kyu Chul Park , Hyo Min Lee
IPC分类号: B01J21/06 , B01J37/02 , B01J35/00 , C09D5/00 , C03C17/00 , C03C17/34 , C09D1/00 , C09D5/14 , C09D7/61 , B01J37/34
摘要: Titania-based porous nanoparticle coatings are mechanically robust, with low haze, which exhibit short time scales for decomposition of fingerprint oils under ultraviolet light. The mechanism by which a typical dactylogram is consumed combines wicking of the sebum into the nanoporous titania structure followed by photocatalytic degradation. These TiO2 nanostructured surfaces are also anti-fogging, anti-bacterial, and compatible with flexible glass substrates and remain photocatalytically active in natural sunlight.
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