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首页> 外文期刊>Journal of Applied Polymer Science >Flexible patch-type hydrochromic polydiacetylene sensor for human sweat pore mapping
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Flexible patch-type hydrochromic polydiacetylene sensor for human sweat pore mapping

机译：用于人类汗孔测绘的柔性贴片型水红十型多迪亚乙烯传感器

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Owing to their stimulus-responsive colorimetric property, polydiacetylenes (PDAs) have been extensively investigated in the context of sensor applications. Incorporation of PDAs in matrix polymers can be utilized to add additional advantageous features into these sensors, like processability, mechanical flexibility, and mass production capability. In the current investigation, a new type of hydrochromic PDA sensor, which consists of a polydiacetylene-polyethylene oxide (PDA-PEO) composite film, was developed. The results of the study demonstrate that the hydrochromic film, which displays a blue-to-red color transition upon hydration, can be used to map human sweat secreting pores. The hygroscopic PEO component of the system enables local sweat to penetrate into the sensor film. The highly -conjugated, imidazolium group containing PDA in the system functions as the hydrochromic material, which undergoes a blue-to-red transition and a corresponding fluorescence turn-on in response to contact with a nanoliter of sweat. In response to deposition of a fingerprint, water arising from individual sweat secreting pores promotes a change that leads to formation of a discrete fluorescence microdot pattern. The most important feature of the new sensor film is mechanical flexibility that gives it with the ability to be utilized to map sweat pores located on highly curved skin surfaces, such as those found on palms, soles, backs, and faces. Accordingly, this attribute offers critical advantages in cosmetics and biomedical applications because it enables recognition of active and inactive sweat pores on curved skin surfaces where rigid or paper-type sweat pore sensors are ineffective. (c) 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44419.
机译：由于它们的刺激响应性比色特性，在传感器应用的背景下已经广泛研究了多迪亚丁烯（PDA）。可以利用PDA在基质聚合物中的掺入将额外的有利特征添加到这些传感器中，如加工性，机械柔韧性和批量生产能力。在目前的研究中，开发了一种新型的氢碳化染素传感器，其由多二亚乙烯 - 聚环氧乙烷（PDA-PEO）复合膜组成。该研究的结果表明，在水合时显示出蓝色对红颜色过渡的水性膜可用于映射人类汗水分泌孔。系统的吸湿性PEO组件使局部汗液能够渗透到传感器膜中。在系统中含有PDA的高度共鸣，含有PDA的用作水红罗形材料，其经历蓝色到红色的过渡和相应的荧光开启，响应于与汗液的粉末接触。响应于指纹的沉积，各种汗液分泌孔引起的水促进了导致形成离散荧光微谱模式的变化。新的传感器膜的最重要特点是机械灵活性，使其能够用于将位于高度弯曲的皮肤表面上的汗毛孔映射，例如在棕榈树，鞋底，背面和面上发现的汗毛孔。因此，该属性在化妆品和生物医学应用中提供了关键优势，因为它能够在弯曲的皮肤表面上识别刚性或纸张型汗孔传感器无效的弯曲的皮肤表面上的主体和无活性汗毛孔。 （c）2016 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2017,134,44419。

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