Issue 35, 2012
From the journal:

Journal of Materials Chemistry

Photocleavable coumarin crosslinkers based polystyrene microgels: phototriggered swelling and release†

Qi Huang,a   Chunyan Bao,*a   Wei Ji,a   Quanyu Wanga  and  Linyong Zhu*a  

* Corresponding authors

a Shanghai Key Laboratory of Functional Materials Chemistry, Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237, P. R. China
E-mail: baochunyan@ecust.edu.cn, linyongzhu@ecust.edu.cn
Fax: +86-21-64253451

Abstract

Two types of photocleavable crosslinkers (CLA and CLB) based on 7-amino coumarin moieties have been synthesized. The ingenious design for the crosslinkers with different vinyl functionalities was aimed to investigate the influence of the crosslinker’s structure on the photodegradation and photoswelling behavior of the constructed microgels. Analysis of DLS, UV spectra and fluorescence spectra verified the original intention and the generated microgels revealed structure-dependent photo-regulated swelling and degradation behavior. The successive loading and release of the hydrophobic Nile Red (NR) dye of the microgel upon visible light irradiation further showed its ability to be used as an excellent nanocarrier for hydrophobic compounds.

Graphical abstract: Photocleavable coumarin crosslinkers based polystyrene microgels: phototriggered swelling and release

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Article information

DOI
https://doi.org/10.1039/C2JM33789D
Article type
Paper
Submitted
13 Jun 2012
Accepted
24 Jul 2012
First published
26 Jul 2012

J. Mater. Chem., 2012,22, 18275-18282

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Photocleavable coumarin crosslinkers based polystyrene microgels: phototriggered swelling and release

Q. Huang, C. Bao, W. Ji, Q. Wang and L. Zhu, J. Mater. Chem., 2012, 22, 18275 DOI: 10.1039/C2JM33789D

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