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UV‐Sensitive Wearable Devices for Colorimetric Monitoring of UV Exposure
Author(s) -
Kurz Wolfgang,
Yetisen Ali K.,
Kaito Mihai Valer,
Fuchter Matthew J.,
Jakobi Martin,
Elsner Martin,
Koch Alexander W.
Publication year - 2020
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201901969
Subject(s) - wearable computer , materials science , ultraviolet , ultraviolet radiation , radiation , optoelectronics , skin cancer , sunlight , wearable technology , radiation exposure , computer science , optics , embedded system , medicine , radiochemistry , chemistry , cancer , physics , nuclear medicine
The extensive exposure of the human epidermis to solar radiation creates a health risk that results in skin cancer. Commercial sunscreens offer sufficient protection from ultraviolet (UV) radiation; however, the ability to determine UV exposure limits can provide informed decisions about the dose of sunscreen required and the frequency of re‐application. Here, a wide range of wearable devices that colorimetrically report on UV exposure are developed. Under UV radiation, UV‐sensitive dyes change their color from 280 to 400 nm in the visible spectrum. By correlating the current color value and the UV dose, the amount of sun exposure is determined with an accuracy of 95%. A smartphone camera algorithm is coded to automatically perform the color analysis of these dyes. The UV‐sensitive dyes are incorporated in wearable devices, skin patches, textiles, contact lenses, and tattoo inks. The developed wearable devices will ensure monitoring UV radiation to rationally manage the user's behavior in order to prevent harmful sun exposure.