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Updated: Aug 18, 2026

Preparation and Characterization of Individual and Multi-drug Loaded Physically Entrapped Polymeric Micelles
Published on: August 28, 2015
The influence of a block copolymer on the efficiency of interfacial microencapsulation
T J Speaker1, T J Speaker, J H Collett
1School of Pharmacy, Temple University, Philadelphia, PA 19140.
Abstract:
Both the presence of poloxamer in concentrations from 1 to 100 per cent w/v and variation in non-aqueous phase ratio in the range 0.2 to 2.0 influence the extent to which acetanilide is incorporated into piperazine arabate microcapsules compared to acetanilide encapsulation without polymer. Low poloxamer concentrations and phase ratios nearly double the amount of acetanilide encapsulated, but high concentrations or phase ratios or both decrease the efficiency of incorporation.
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