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J Am Chem Soc. 2014 Apr 30;136(17):6401-5. doi: 10.1021/ja501635u. Epub 2014 Apr 17.

Visualizing dermal permeation of sodium channel modulators by mass spectrometric imaging.

Author information

1
Department of Chemistry, Stanford University , Stanford, California 94305-5080, United States.

Abstract

Determining permeability of a given compound through human skin is a principal challenge owing to the highly complex nature of dermal tissue. We describe the application of an ambient mass spectrometry imaging method for visualizing skin penetration of sodium channel modulators, including novel synthetic analogs of natural neurotoxic alkaloids, topically applied ex vivo to human skin. Our simple and label-free approach enables successful mapping of the transverse and lateral diffusion of small molecules having different physicochemical properties without the need for extensive sample preparation.

PMID:
24708172
PMCID:
PMC4017602
DOI:
10.1021/ja501635u
[Indexed for MEDLINE]
Free PMC Article

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