Matches in SemOpenAlex for { <https://semopenalex.org/work/W4225127968> ?p ?o ?g. }
Showing items 1 to 61 of
61
with 100 items per page.
- W4225127968 abstract "Sunscreen lotions are used to protect the skin from damage due to solar ultraviolet (UV) radiation. The active UV blocking components can be organic molecules or inorganic particles, for example TiO2. While both in vivo and in vitro methods exist for assessing the protective capacity of sunscreens, their basic optical properties have received little attention. In this paper we take the first steps to address this issue by presenting a method to obtain spectra of absorption and scattering coefficients of a sunscreen by analysis of experimental transmittance and reflectance spectra. We model the optical properties of the sunscreen by two flux theory, develop approximate expressions for interface reflection coefficients and obtain the remaining optical parameters by fitting the two-flux theory to measurements. We analyze spectrophotometric reflectance and transmittance spectra of experimental narrow band UV blocking materials based on mixtures of mesoporous magnesium carbonate and TiO2, as well as some commercial sunscreens. Our method is demonstrated in vitro using quartz substrates and is further used to model in vivo measurements on the upside of the hand of one of the authors. The obtained absorption and scattering coefficient spectra give information on the relative contributions of these processes to the UV blocking effect as well as the scattering of visible light responsible for the whitening of the skin upon application of a sunscreen lotion. Our analysis method may be useful for computational optimization of novel sunscreen formulations as well as for the development of in vivo test methods." @default.
- W4225127968 created "2022-05-01" @default.
- W4225127968 creator A5027522618 @default.
- W4225127968 creator A5037359873 @default.
- W4225127968 creator A5040136858 @default.
- W4225127968 creator A5064758044 @default.
- W4225127968 creator A5068313047 @default.
- W4225127968 creator A5086571455 @default.
- W4225127968 date "2022-03-01" @default.
- W4225127968 modified "2023-10-18" @default.
- W4225127968 title "Optics of sunscreen lotions: Preliminary results on scattering and absorption coefficients" @default.
- W4225127968 doi "https://doi.org/10.48550/arxiv.2204.13507" @default.
- W4225127968 hasPublicationYear "2022" @default.
- W4225127968 type Work @default.
- W4225127968 citedByCount "0" @default.
- W4225127968 crossrefType "posted-content" @default.
- W4225127968 hasAuthorship W4225127968A5027522618 @default.
- W4225127968 hasAuthorship W4225127968A5037359873 @default.
- W4225127968 hasAuthorship W4225127968A5040136858 @default.
- W4225127968 hasAuthorship W4225127968A5064758044 @default.
- W4225127968 hasAuthorship W4225127968A5068313047 @default.
- W4225127968 hasAuthorship W4225127968A5086571455 @default.
- W4225127968 hasBestOaLocation W42251279681 @default.
- W4225127968 hasConcept C120665830 @default.
- W4225127968 hasConcept C121332964 @default.
- W4225127968 hasConcept C125287762 @default.
- W4225127968 hasConcept C150493377 @default.
- W4225127968 hasConcept C159774933 @default.
- W4225127968 hasConcept C159985019 @default.
- W4225127968 hasConcept C185592680 @default.
- W4225127968 hasConcept C191486275 @default.
- W4225127968 hasConcept C192562407 @default.
- W4225127968 hasConcept C2776798109 @default.
- W4225127968 hasConcept C49040817 @default.
- W4225127968 hasConceptScore W4225127968C120665830 @default.
- W4225127968 hasConceptScore W4225127968C121332964 @default.
- W4225127968 hasConceptScore W4225127968C125287762 @default.
- W4225127968 hasConceptScore W4225127968C150493377 @default.
- W4225127968 hasConceptScore W4225127968C159774933 @default.
- W4225127968 hasConceptScore W4225127968C159985019 @default.
- W4225127968 hasConceptScore W4225127968C185592680 @default.
- W4225127968 hasConceptScore W4225127968C191486275 @default.
- W4225127968 hasConceptScore W4225127968C192562407 @default.
- W4225127968 hasConceptScore W4225127968C2776798109 @default.
- W4225127968 hasConceptScore W4225127968C49040817 @default.
- W4225127968 hasLocation W42251279681 @default.
- W4225127968 hasOpenAccess W4225127968 @default.
- W4225127968 hasPrimaryLocation W42251279681 @default.
- W4225127968 hasRelatedWork W1971595478 @default.
- W4225127968 hasRelatedWork W1972420594 @default.
- W4225127968 hasRelatedWork W1986245170 @default.
- W4225127968 hasRelatedWork W2028364505 @default.
- W4225127968 hasRelatedWork W2062582199 @default.
- W4225127968 hasRelatedWork W2062971140 @default.
- W4225127968 hasRelatedWork W2091030308 @default.
- W4225127968 hasRelatedWork W2097436809 @default.
- W4225127968 hasRelatedWork W2317242629 @default.
- W4225127968 hasRelatedWork W2893157177 @default.
- W4225127968 isParatext "false" @default.
- W4225127968 isRetracted "false" @default.
- W4225127968 workType "article" @default.