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Guest-release control in enzyme-sensitive, amphiphilic-dendrimer-based nanoparticles through photochemical crosslinking.

Authors
Type
Published Article
Journal
Chemistry - A European Journal
1521-3765
Publisher
Wiley Blackwell (John Wiley & Sons)
Publication Date
Volume
17
Issue
42
Pages
11752–11760
Identifiers
DOI: 10.1002/chem.201101066
PMID: 21887830
Source
Medline

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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