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Issue 42, 2013
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A versatile method for the preparation of poly-acrylamide derivative functionalized thermo-responsive gold nanoparticles

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Abstract

In this work, we present a facile in situ strategy for synthesis of thermo-responsive gold nanoparticles (GNPs) at room temperature. By using the RAFT polymerization methods, thermo-responsive polymer chains possessing trithiocarbonate groups have been synthesized which can be split into two chains and can produce a thiol end-group by NaOH. Then the thiol end-group polymer chains can act as anchors to capture the Au(III) ions in aqueous solution to form thermo-responsive GNPs. The thermo-responsive GNPs synthesized by the proposed method exhibited a reversible, clear–opaque transition in solution between 35 °C and 60 °C. It is conjectured that this strategy possesses the virtues including in situ, “green”, universal and tailored without a tedious reducing procedure using any toxic reducing agents. Further, the thermo-responsive GNPs have been applied for the effective analysis of cysteine in urine samples.

Graphical abstract: A versatile method for the preparation of poly-acrylamide derivative functionalized thermo-responsive gold nanoparticles

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Article information


Submitted
21 Aug 2013
Accepted
17 Sep 2013
First published
19 Sep 2013

J. Mater. Chem. B, 2013,1, 5756-5761
Article type
Paper

A versatile method for the preparation of poly-acrylamide derivative functionalized thermo-responsive gold nanoparticles

J. Qiao, X. Mu and L. Qi, J. Mater. Chem. B, 2013, 1, 5756
DOI: 10.1039/C3TB21169J

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