Issue 60, 2016
From the journal:

RSC Advances

Facile and large scale in situ synthesis of the thermal responsive fluorescent SiNPs/PNIPAM hydrogels†

Xiao-Yan Zhang,a   Yan Zheng,a   Chun-Hua Liu,*a   Ping-Hua Wanga  and  Yuan-Yuan Zhu*a  

* Corresponding authors

a School of Chemistry and Chemical Engineering, Hefei University of Technology, Anhui Key Laboratory of Advanced Functional Materials and Devices, Hefei 230009, China
E-mail: lchh88@hfut.edu.cn, yyzhu@hfut.edu.cn

Abstract

We herein report the synthesis of fluorescent silicon nanoparticles (F-SiNPs) with uniformly small sizes and stable fluorescence, and further preparation of F-SiNPs/poly(N-isopropylacrylamide) (F-SiNPs/PNIPAM) composite hydrogels by in situ polymerization. This type of hydrogel displayed visible thermal-sensitive phase transition properties. Upon heating, the fluorescence intensity of the hydrogels decreased sharply beyond the lower critical solution temperature (LCST) of PNIPAM. The process of fluorescence quenching and recovery was reversible after repeated heating and cooling cycles. This result suggests that the present organic/inorganic hybrid F-SiNPs/PNIPAM hydrogels will have potential applications in visual detection as fluorescence-based temperature sensors.

Graphical abstract: Facile and large scale in situ synthesis of the thermal responsive fluorescent SiNPs/PNIPAM hydrogels

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Article information

DOI
https://doi.org/10.1039/C6RA09534H
Article type
Paper
Submitted
13 Apr 2016
Accepted
26 May 2016
First published
27 May 2016

RSC Adv., 2016,6, 55666-55670

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Facile and large scale in situ synthesis of the thermal responsive fluorescent SiNPs/PNIPAM hydrogels

X. Zhang, Y. Zheng, C. Liu, P. Wang and Y. Zhu, RSC Adv., 2016, 6, 55666 DOI: 10.1039/C6RA09534H

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