image: The solar radiation sensors are flexible and can detect multiple forms of ultraviolet radiation. This material relates to a paper that appeared in the Dec. 5, 2018, issue of the AAAS journal: Science Translational Medicine . The paper, by S.Y. Heo at Northwestern University in Evanston, IL; and colleagues was titled, "Wireless, battery-free, flexible, miniaturized dosimeters monitor exposure to solar radiation and to light for phototherapy."
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Credit: S.Y. Heo <em>et al</em>., <em>Science Translational Medicine</em> (2018)
研究人员创建了无需电池的无线感测器,它们能实时监测与阳光辐射的接触。他们的微型装置提供了一种轻便灵活的追踪阳光曝晒的方法,它或能证明可在户外活动时用于监测紫外光(UV)的辐射剂量,优化对皮肤病的光疗。接触高剂量的UV光会导致罹患黑色素瘤及其它皮肤癌风险增加,这令美国每年共需耗资81亿美元,它们预计会在美国达到“流行病的程度”。然而,与光接触还能治病,蓝光疗法已经成为婴儿黄疸的标准治疗;婴儿黄疸是一种影响50-60%早产儿的肝脏疾病。现有的UV监测装置有着诸如电池寿命有限等各种缺陷,因此妨碍了它们更为广泛的应用。为了克服这些障碍,Seung Yun Heo和同事创制了一种成本低廉的技术,它由柔性的附着感测器组成,后者可监控不同形式的辐射。它具有“系统芯片”的设计,可进行无线、基于智能手机的对个体接触阳光辐射数据进行读取的感测器。作者观察到,健康志愿者在户外娱乐活动(包括行走和游泳)期间佩戴这些感测器达4天的时间,这些装置仍然能发挥功能并可靠地记录阳光辐射中的UVA剂量。更重要的是,这些感测器可做成不同的形状与大小,它们能记录用于临床光疗的UVA和UVB的接触剂量。它们还成功地监测了接受蓝光治疗的黄疸婴儿的光接触剂量。Heo等人说,这些感测器甚至还能在经过洗衣机清洗一轮后仍具有功能。
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Journal
Science Translational Medicine
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