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| Content Provider | Springer Nature Link |
|---|---|
| Author | Padula, Cristina Sartori, Francesca Marra, Fabio Santi, Patrizia |
| Copyright Year | 2005 |
| Abstract | The aim of this work was to explore the effect of iontophoresis on acyclovir (ACV) accumulation and permeation. In particular, the objectives were to check the efficacy of the transport mechanisms, electromigration and electroosmosis, on drug accumulation.Permeation experiments were performed in vitro, using rabbit ear skin as barrier, from donor solutions at pH 3.0, 5.8, and 7.4. At the end of the experiments, drug accumulation in epidermis and dermis was measured. Anodal and cathodal iontophoresis were applied at pH 3.0, whereas only anodal iontophoresis was used at pH 5.8 (current densities 0.06–0.50 mA/cm$^{2}$) and 7.4.Cathodal iontophoresis was more efficient than anodal iontophoresis on ACV permeation across the skin at pH 3.0. At pH 5.8, ACV flux and accumulation increased with current density during anodal iontophoresis. At pH 7.4, anodal iontophoresis produced a remarkable increase of flux and a modest increase of accumulation. Overall, anodal flux increased as the pH of the donor solution was increased as a result of the increase of the skin net negative charge.From the results obtained in the present work, it can be concluded that iontophoresis application increases ACV flux and, to a limited extent, accumulation in the skin. |
| Starting Page | 1519 |
| Ending Page | 1524 |
| Page Count | 6 |
| File Format | |
| ISSN | 07248741 |
| Journal | Pharmaceutical Research |
| Volume Number | 22 |
| Issue Number | 9 |
| e-ISSN | 1573904X |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2005-08-24 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | acetaminophen acyclovir electroosmosis iontophoresis skin transdermal Pharmacology/Toxicology Pharmacy Biochemistry Medical Law Biomedical Engineering |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Pharmacology Molecular Medicine Pharmacology (medical) Biotechnology Pharmaceutical Science |
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