Spontaneous Temperature Control Using Reversible Spectroscopic Responses of PNIPAM-coated Gold Nanorods

• Kohei Shimoda

  Department of Applied Chemistry, Kyushu University

• Tsuyohiko Fujigaya

  Department of Applied Chemistry, Kyushu University

• Naotoshi Nakashima

  Department of Applied Chemistry, Kyushu University

• Yasuro Niidome

  Department of Applied Chemistry, Kyushu University

抄録

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.

収録刊行物

• Chemistry Letters

  Chemistry Letters 42 (10), 1247-1249, 2013-06-21

  Oxford University Press (OUP)

詳細情報

• CRID: 1360565169058834944
• NII論文ID: 10031201326
• NII書誌ID: AA00603318
• DOI: 10.1246/cl.130457
• ISSN: 13480715
• ISSN: 03667022
• Web Site: https://academic.oup.com/chemlett/article-pdf/42/10/1247/55636141/cl.130457.pdf
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