Chemistry Letters
Online ISSN : 1348-0715
Print ISSN : 0366-7022
Letter
Spontaneous Temperature Control Using Reversible Spectroscopic Responses of PNIPAM-coated Gold Nanorods
Kohei ShimodaTsuyohiko FujigayaNaotoshi NakashimaYasuro Niidome
Author information
JOURNALS RESTRICTED ACCESS

Volume 42 (2013) Issue 10 Pages 1247-1249

Details
View on the journal site Contact us
Abstract

Poly(N-isopropylacrylamide) (PNIPAM) was coated on gold nanorods (NRs) without forming aggregates. The PNIPAM-coated NRs (PNIPAM-NRs) formed aggregates at higher temperature than the lower critical solution temperature (LCST) of the PNIPAM layers. The aggregation showed reversible spectroscopic responses under repeated temperature cycles. When a PNIPAM-NR solution was irradiated with near-infrared (near-IR) light, the temperature increased and aggregates formed showing broad and weak surface plasmon bands. The spectroscopic responses in near-IR work as a negative feedback for heating a photoirradiated nanorod solution. The feedback offers spontaneous temperature control of the photoirradiated solution at the LCST of PNIPAM.

Information related to the author
© 2013 The Chemical Society of Japan
Previous article Next article

Recently visited articles
feedback
Top