Pulsed photoacoustic spectroscopy applied to the diffusion of sunscreen chromophores in human skin: The weakly absorbent regime

G. Puccetti, F. Lahjomri, R. M. Leblanc

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

Pulsed photoacoustic spectroscopy was used to study the penetration of sunscreen chromophores into human skin. This study focuses on basic solutions containing single typical filter molecules, as used in current sunscreens, dissolved in mineral oil. The pulsed form of the photoacoustic technique was preferred because it provides more detailed information on the filter distribution within the different layers of human skin. A new methodology provides better insight into the diffusion process through signal analysis in the time and frequency domains, allowing for global and depth-related characterization. The penetration of the chromophore influences the response signal by inducing changes in the optical and thermal properties at different depths within the medium. The light scattering effect of titanium dioxide was demonstrated by the same technique.

Original languageEnglish (US)
Pages (from-to)110-120
Number of pages11
JournalJournal of Photochemistry and Photobiology B: Biology
Volume39
Issue number2
DOIs
StatePublished - Jun 1 1997

Keywords

  • Diffusion
  • Human skin
  • Pulsed photoacoustic spectroscopy
  • Sunscreen chromophores

ASJC Scopus subject areas

  • Plant Science
  • Bioengineering
  • Physical and Theoretical Chemistry

Fingerprint Dive into the research topics of 'Pulsed photoacoustic spectroscopy applied to the diffusion of sunscreen chromophores in human skin: The weakly absorbent regime'. Together they form a unique fingerprint.

  • Cite this