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Issue 11, 2013
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Synthesis of a novel fluorescent amphiphilic chitosanbiopolymer: photophysical and electrochemical behavior

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Abstract

The present investigation describes for the first time, the synthesis and detailed characterization of a novel fluorescent and amphiphilic chitosan polymer (3) containing fluorescent peryleneimide chromophores for biomedical applications. The polymer 3 is moderately soluble in a wide range of organic solvents and aqueous solutions, unlike chitosan (2). The Mw of 3 and 2 determined by GPC were 467 kDa and 460 kDa, respectively. The photophysical and electrochemical properties measured in solution and solid states are engrossing. 3 is soluble in the entire pH range and exhibits excimer emission above pH 5. In solution, 3 is electroactive but 2 is not. Whereas in the solid-state, 3 shows one quasi-reversible oxidation and reversible reduction step and 2 exhibits only one quasi-reversible oxidation step. Our results point out a new class of organic biopolymers that could yield promising potentials in many biomedical applications.

Graphical abstract: Synthesis of a novel fluorescent amphiphilic chitosan biopolymer: photophysical and electrochemical behavior

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Article information


Submitted
22 Apr 2013
Accepted
03 Jul 2013
First published
04 Jul 2013

Photochem. Photobiol. Sci., 2013,12, 1927-1938
Article type
Paper

Synthesis of a novel fluorescent amphiphilic chitosan biopolymer: photophysical and electrochemical behavior

D. Ozdal, S. Asir, J. B. Bodapati and H. Icil, Photochem. Photobiol. Sci., 2013, 12, 1927
DOI: 10.1039/C3PP50122A

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