On June 30, 2021, El Khoury, Rindala; Abboud, Marie; Michael-Jubeli, Rime; Yagoubi, Najet; Baillet-Guffroy, Arlette; Rizk, Toufic; Tfayli, Ali; Lteif, Roger published an article.COA of Formula: C24H27NO2 The title of the article was EBT3 Gafchromic film as a new substrate for in vitro evaluation of sun protection factor. And the article contained the following:
There exist different methods for the determination of sun protection factor (SPF) values for sunscreens. We aimed to develop a new in vitro method using EBT3 Gafchromic film as a substrate. The color of EBT3 Gafchromic film changes when exposed to UV light. Films were covered by sunscreen preparations of different SPF values ranging from 0 to 50. Uncovered and covered films were exposed to different solar light energies and their color change was compared. Absorbance spectra of films was measured at 633 nm using a UV-VIS spectrophotometer apparatus The color of the film darkens when UV energy increases, which means that absorbance increases with exposure time. However, when films are covered by sunscreens, the color change is less visible and the absorbance significantly decreases with increasing SPF value. There is a linear correlation between the absorbance of EBT3 Gafchromic film and SPF value of sunscreens covering the film. Statistical anal. demonstrated that the SPF value of a sunscreen can be predicted using EBT3 Gafchromic film as a substrate. This is the first report of an in vitro method based on color change of a substrate which takes into consideration exposure time, and relates more closely to conditions of real-life. Based on these parameters, this is a reliable in vitro method for SPF testing. The experimental process involved the reaction of 2-Ethylhexyl 2-cyano-3,3-diphenylacrylate(cas: 6197-30-4).COA of Formula: C24H27NO2
The Article related to sun protection factor sunscreen uv radiation ebt3 gafchromic film, gafchromic® ebt3, film dosimetry, skin protection, sun protection factor, ultraviolet radiation, Placeholder for records without volume info and other aspects.COA of Formula: C24H27NO2
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