In vitro transdermal absorption of Al2O3 nanoparticles.
Toxicol In Vitro
; 59: 275-280, 2019 Sep.
Article
em En
| MEDLINE
| ID: mdl-31002974
ABSTRACT
Dermal exposure to Aluminium nanoparticles (AlNPs) can occur in occupationally- and non occupationally exposed- population, due to the use of Al salts-based antiperspirants. No AlNPs transdermal permeation data exists. Our study investigated in vitro the permeation of 30-60â¯nm Al2O3NPs dispersed in synthetic sweat (20â¯g/L) using excised human skin on Franz cells. Experiments were performed using intact (experiment 1) and needle-abraded skin (experiment 2). After 24â¯h traces of Al were detectable in receiving solution of exposed cells (35.0⯱â¯6.0â¯ng/cm2 for intact and 88.5⯱â¯34.2â¯ng/cm2 for damaged skin, mean and SD) and in blank cells (36.3⯱â¯7.0â¯ng/cm2), without statistical significance (pâ¯=â¯0.08, Mann-Whitney test). The average amount of Al into intact and damaged skin samples was 3.96⯱â¯0.20⯵g/cm2 for intact and 4.36⯱â¯0.47⯵g/cm2 for damaged skin (pâ¯=â¯0.08). Al content was similar in epidermal and dermal layers of intact and damaged skin (1.95⯱â¯0.13⯵g/cm2 and 2.31⯱â¯0.12⯵g/cm2 epidermal, 2.01⯱â¯0.25⯵g/cm2 and 2.05⯱â¯0.35⯵g/cm2 dermal). Al is a trace element in human body and the amount found in receiving solutions could be due as background impurity. This data suggest a reassuring transdermal permeation profile for Al2O3NPs.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Pele
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Nanopartículas Metálicas
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Óxido de Alumínio
Limite:
Aged
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Female
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Humans
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Middle aged
Idioma:
En
Revista:
Toxicol In Vitro
Assunto da revista:
TOXICOLOGIA
Ano de publicação:
2019
Tipo de documento:
Article