Materials and Device Designs for an Epidermal UV Colorimetric Dosimeter with Near Field Communication Capabilities
Materials and Device Designs for an Epidermal UV Colorimetric Dosimeter with Near Field Communication Capabilities
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DOI：
10.1002/adfm.201604465
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发表时间：
2017-01-01
影响因子：
19
通讯作者：
Rogers, John A.
中科院分区：
文献类型：
--
作者：
Araki, Hitoshi;Kim, Jeonghyun;Rogers, John A.
紫外线（UV）太阳辐射是皮肤病的主要原因。对接触水平的定量、持续了解可以提高认识，改善健康状况。因此，以可以与皮肤无缝集成的形式提供这种类型的测量能力的设备是令人感兴趣的。本文介绍了类似皮肤或“表皮”系统的材料、设备设计和数据采集方法，该系统结合了比色和电子功能，可在光谱的UV-A和UV-B区域进行精确剂量测定，并用于确定瞬时紫外线暴露水平和皮肤温度。当与合适的滤光器集成时，比色化学使用（4-苯氧基苯基）二苯基锍三氟甲磺酸盐（PPDPS-TF）与结晶紫内酯（CVL）和刚果红分别用于UV-A和UV-B操作。聚（乙烯-醋酸乙烯酯）（PEVA）涂层保护功能材料免受防晒霜和其他污染。定量信息来自设备数字图像的自动L*a*B* 颜色空间分析，以在针对标准非可穿戴传感器进行校准时提供准确的测量。丝网印刷和层压技术分别允许美学设计和与表皮近场通信平台的集成。其结果是一套有吸引力的技术，用于管理个人水平和身体目标区域的紫外线暴露。
Ultraviolet (UV) solar radiation is a leading cause of skin disease. Quantitative, continuous knowledge of exposure levels can enhance awareness and lead to improved health outcomes. Devices that offer this type of measurement capability in formats that can seamlessly integrate with the skin are therefore of interest. This paper introduces materials, device designs, and data acquisition methods for a skin-like, or "epidermal," system that combines colorimetric and electronic function for precise dosimetry in the UV-A and UV-B regions of the spectrum, and for determination of instantaneous UV exposure levels and skin temperature. The colorimetric chemistry uses (4-phenoxyphenyl) diphenylsulfonium triflate (PPDPS-TF) with crystal violet lactone (CVL) and Congo red for UV-A and UV-B operation, respectively, when integrated with suitable optical filters. Coatings of poly(ethylene-vinylacetate) (PEVA) protect the functional materials from sunscreen and other contamination. Quantitative information follows from automated L*a*b* color space analysis of digital images of the devices to provide accurate measurements when calibrated against standard nonwearable sensors. Techniques of screen printing and lamination allow aesthetic designs and integration with epidermal near field communication platforms, respectively. The result is a set of attractive technologies for managing UV exposure at a personal level and on targeted regions of the body.