Journal
CARBOHYDRATE POLYMERS
Volume 143, Issue -, Pages 254-261Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2016.02.004
Keywords
Nanoparticles; Acetylated cashew gum; Diclofenac diethyl amine; Cytotoxicity; Transdermal delivery
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Funding
- CNPq
- CAPES
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Nanoprecipitation and dialysis methods were employed to obtain nanoparticles (NPs) of acetylated cashew gum (ACG). NPs synthesized by dialysis showed greater average size compared to those synthesized by nanoprecipitation, but they presented improved stability and yield. NPs were loaded with diclofenac diethylamine and the efficiency of the drug incorporation was over 60% for both methods, for an ACG: NP a weight ratio of 10:1. The cytotoxicity assay demonstrated that the NPs had no significant effect on the cell viability, verifying their biocompatibility. The release profile for the diclofenac diethylamine associated with the ACG-NPs showed a more controlled release compared to the free drug and a Fickian diffusion mechanism was observed. Transdermal permeation reached 90% penetration of the drug. (C) 2016 Published by Elsevier Ltd.
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