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Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy v.174, 2017년, pp.279 - 285   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

In vivo confocal Raman spectroscopy and molecular dynamics analysis of penetration of retinyl acetate into stratum corneum

dos Santos, Laurita (Laboratory of Biomedical Vibrational Spectroscopy, University of Vale do Paraíba, 12224-000 São José ) ; Téllez S, Claudio A. (dos Campos, SP, Brazil ) ; Sousa, Mariane P.J. (Laboratory of Biomedical Vibrational Spectroscopy, University of Vale do Paraíba, 12224-000 São José ) ; Azoia, Nuno G. (dos Campos, SP, Brazil ) ; Cavaco-Paulo, Artur M. (Laboratory of Biomedical Vibrational Spectroscopy, University of Vale do Paraíba, 12224-000 São José ) ; Martin, Airton A. (dos Campos, SP, Brazil ) ; Favero, Priscila P. (Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal ) ;
  • 초록  

    Abstract Objective The purpose of this study is to elucidate the behavior of retinyl acetate in penetrating human skin without the presence of enhancers by using confocal Raman spectroscopy and molecular dynamics simulation. Methods In this study, in vivo confocal Raman spectroscopy was combined with molecular dynamics simulation to investigate the transdermal permeation of the aqueous suspension of retinyl acetate. Results Permeation was measured after 30min, and retinyl acetate was found up to 20μm deep inside the stratum corneum. The delivery of retinyl acetate inside a skin membrane model was studied by molecular dynamics. The membrane model that was used represented normal young skin containing a lipid bilayer with 25% ceramide, 36% fatty acid, 30% cholesterol, and 6% cholesterol sulfate. Conclusion Spectroscopy data indicate that retinyl acetate permeates into the stratum corneum. Molecular dynamics data showed that retinyl acetate permeates in the membrane model and that their final location is deep inside the lipid bilayer. We showed, for the first time, a correlation between Raman permeation data and computational data. Highlights The behavior of retinyl acetate in penetrating human skin without enhancers A correlation between Raman permeation data and dynamic molecular simulation The retinyl acetate translocation was observed using an in silico model. Graphical Abstract Molecular dynamics simulation of penetration process of retinyl acetate into intercellular lipid lamellae of stratum corneum. The region circled in red is the mobility of the RA between two lipids layers. Water is not represented. [DISPLAY OMISSION]


  • 주제어

    In vivo confocal Raman spectroscopy .   Molecular dynamics .   Stratum corneum .   Retinyl acetate .   Skin penetration.  

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