Flexible UV Exposure Sensor Based on UV Responsive Polymer was written by Lee, Michele E.;Armani, Andrea M.. And the article was included in ACS Sensors in 2016.Recommanded Product: 3-(Hydroxymethyl)-4-nitrophenol This article mentions the following:
One critical challenge facing society is balancing the pos. and neg. effects of UV exposure. While UV exposure contributes to Vitamin D production, in excess, UV exposure is linked to skin cancer. Therefore, methods to monitor UV exposure and help society achieve this delicate balance have been the focus of numerous research efforts. Here, we leverage advances in functional materials to create a wearable UV light sensor. The flexible, lightweight trilayer sensor, which is composed of a UV responsive polymer layer sandwiched between two transparent protective layers made from FDA-approved polymers, changes color from transparent to yellow upon UV exposure. Notably, the entire trilayer system is less than 250mm thick, allowing it to maintain mech. flexibility. The UV responsive material leverages the photocleavable ortho-nitrobenzyl (ONB) moiety. Because a singular ONB cleaving group is centrally located along the polymer backbone, the colorimetric response is very controlled. Using an AM1.5 solar simulator, the sensor’s linear working range is demonstrated to cover the medically relevant range of 15 min to 1 h. Addnl., we determine the sensor’s robustness to potential environmental and mech. stress as well as long-term storage. After mech. bending and water immersion, the performance is unchanged. Storage in ambient conditions also does not degrade the behavior. When combined with sunscreen, the sensor’s response is predictably decreased due to the attenuation of the UV light. This flexible colorimetric sensor based on a smart polymer system can greatly aid society in achieving a balance in sufficient UV exposure. In the experiment, the researchers used many compounds, for example, 3-(Hydroxymethyl)-4-nitrophenol (cas: 60463-12-9Recommanded Product: 3-(Hydroxymethyl)-4-nitrophenol).
3-(Hydroxymethyl)-4-nitrophenol (cas: 60463-12-9) belongs to alcohols. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.Recommanded Product: 3-(Hydroxymethyl)-4-nitrophenol
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts