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Assessment of in vitro methodologies to determine topical and transdermal delivery of the flavonoid quercetin BJPS
Vicentini,Fabiana Testa Moura de Carvalho; Georgetti,Sandra Regina; Bentley,Maria Vitória Lopes Badra; Fonseca,Maria José Vieira.
To be effective against the oxidative damages induced by UVB irradiation in the skin, the drug needs to release from the formulation in which it was incorporated and reach the skin layers where the ROS are generated. Thus, it is very important the development of a robust and sensitive methodology to extract and quantify in different skin layers the antioxidant agent delivered from topical formulations. Therefore, in the present work suitable methods to extract and quantify quercetin in skin samples and receptor phase after in vitro penetration studies were developed. The results demonstrated that the recovery from two different layers of skin, the SC and [E+D], using two different methods of quantification (DPPH• assay and HPLC, respectively), was 93.8 %...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Topical formulations/analysis; Quercetin/quantification; Quercetin/extraction; Quercetin/liberation; Skin penetration in vitro/study; High performance liquid chromatography; DPPH•.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502009000200022
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