Photothermal reshaping of gold nanorods depends on the passivating layers of the nanorod surfaces

Yukichi Horiguchi; Kanako Honda; Yuichi Kato; Naotoshi Nakashima; Yasuro Niidome

doi:10.1021/la800811j

Photothermal reshaping of gold nanorods depends on the passivating layers of the nanorod surfaces

Yukichi Horiguchi, Kanako Honda, Yuichi Kato, Naotoshi Nakashima, Yasuro Niidome

Molecular Information Chemistry

Research output: Contribution to journal › Article

77 Citations (Scopus)

Abstract

Photothermal reshaping of gold nanorods was triggered by pulsed-laser irradiation. The efficiency of the reshaping was strongly dependent on the surface conditions of the gold nanorods. When the gold nanorods were dispersed in concentrated hexadecyltrimethylammonium bromide (CTAB), the gold nanorods were efficiently transformed into a φ-shape. By comparison when poly(styrene sulfonate), poly(vinylpyrrolidone), poly(ethylene glycol), or phosphatidylcholine layers were used, the CTAB layers were found to be a better thermal insulator that helped to enhance the photothermal reshaping of the gold nanorods.

Original language	English
Pages (from-to)	12026-12031
Number of pages	6
Journal	Langmuir
Volume	24
Issue number	20
DOIs	https://doi.org/10.1021/la800811j
Publication status	Published - Oct 21 2008

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Surfaces and Interfaces
Spectroscopy
Electrochemistry

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10.1021/la800811j

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abstract = "Photothermal reshaping of gold nanorods was triggered by pulsed-laser irradiation. The efficiency of the reshaping was strongly dependent on the surface conditions of the gold nanorods. When the gold nanorods were dispersed in concentrated hexadecyltrimethylammonium bromide (CTAB), the gold nanorods were efficiently transformed into a φ-shape. By comparison when poly(styrene sulfonate), poly(vinylpyrrolidone), poly(ethylene glycol), or phosphatidylcholine layers were used, the CTAB layers were found to be a better thermal insulator that helped to enhance the photothermal reshaping of the gold nanorods.",

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AU - Niidome, Yasuro

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