Guest-release Control in Enzyme-sensitive, Amphiphilic-dendrimer-based Nanoparticles Through Photochemical Crosslinking

Overview

Journal Chemistry

Specialty Chemistry

Date 2011 Sep 3

PMID 21887830

Citations 15

Authors

Krishna R Raghupathi

Malar A Azagarsamy

S Thayumanavan

Affiliations

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Abstract

Stimuli sensitive, facially amphiphilic dendrimers have been synthesized and their enzyme-responsive nature has been determined with dual fluorescence responses of both covalently conjugated and non-covalently bound reporter units. These dual responses are correlated to ascertain the effect of enzymatic action on micellar aggregates and the consequential guest release. The release of the guest molecule is conveniently tuned by stabilizing the micellar aggregates through photochemical crosslinking of hydrophobic coumarin units. This photo-crosslinking is also utilized as a tool to investigate the mode of enzyme-substrate interaction in the context of aggregate-monomer equilibrium.

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