Journals on Neuro Imaging - BJSTR Journal

Abstract

Controlled drug delivery systems such as the stimulation-based #biomaterial scaffolds for sequestration and release of drugs offer safety and regulated therapeutic approach. In this study, the drug: #para-aminobenzoic acid (PABA) was absorbed into a crosslinked chitosan and #poly(caprolactone) (PCL) #hydrogel and its release kinetics quantified under different conditions. It was experimentally-observed that the higher the pH (or the more basic the pH), the slower the PABA saturation release trended over time. At the acidic environment of pH 4, PABA was released the fastest, and enhanced by the degradation of #chitosan-PCL gel. When a constant electric current of 0.6 mA as applied, PABA release was induced at pH 10. However, at pH 7, PABA was stably-bound to the #chitosan-PCL matrix, with or without the external current. 

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PABA Release from Chitosan-PCL with Induced Electric Current by Roche C de Guzman in BJSTR