Issue 27-28, 2005
From the journal:

Journal of Materials Chemistry

Development of fluorescent microgel thermometers based on thermo-responsive polymers and their modulation of sensitivity range

Kaoru Iwai,*a   Yuriko Matsumura,a   Seiichi Uchiyamaab  and  A. Prasanna de Silvab  

* Corresponding authors

a Department of Chemistry, Faculty of Science, Nara Women's University, Kitauoya-Nishimachi, Nara, Japan
E-mail: iwai@cc.nara-wu.ac.jp
Fax: 81 742 20 3401
Tel: 81 742 20 3401

b School of Chemistry, Queen's University, Belfast, Northern Ireland, UK

Abstract

Fluorescent molecular thermometers based on thermo-responsive linear polymer molecules such as poly(N-isopropylacrylamide) (PNIPAM) labelled with a polarity-responsive fluorescent molecule benzofurazan (BD) are the most sensitive known. Thermo-responsive PNIPAM and some related polymer microgel particles labelled with BD by emulsion polymerization have been prepared and their fluorescence properties in water as fluorescent thermometers studied. All the cross-linked polymer microgel particles dispersed in water fluoresce strongly as soon as each threshold temperature is exceeded. The nine kinds of microgel dispersion developed in this work thoroughly cover the sensitivity range from 18 to 47 °C. They are not only more sensitive than the previous fluorescent molecular thermometers based on other principles but also highly reproducible in their behaviour.

Graphical abstract: Development of fluorescent microgel thermometers based on thermo-responsive polymers and their modulation of sensitivity range

About
Cited by
Related
Download options Please wait...

Article information

DOI
https://doi.org/10.1039/B502277K
Article type
Paper
Submitted
14 Feb 2005
Accepted
31 Mar 2005
First published
13 Apr 2005

J. Mater. Chem., 2005,15, 2796-2800

Permissions

Request permissions

Development of fluorescent microgel thermometers based on thermo-responsive polymers and their modulation of sensitivity range

K. Iwai, Y. Matsumura, S. Uchiyama and A. P. de Silva, J. Mater. Chem., 2005, 15, 2796 DOI: 10.1039/B502277K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Spotlight

Advertisements