Photothermal Reshaping of Gold Nanorods Depends on the Passivating Layers of the Nanorod Surfaces

详细信息    查看全文

• 作者：Yukichi Horiguchi ; Kanako Honda ; Yuichi Kato ; Naotoshi Nakashima ; Yasuro Niidome
• 刊名：Langmuir
• 出版年：2008
• 出版时间：October 21, 2008
• 年：2008
• 卷：24
• 期：20
• 页码：12026-12031
• 全文大小：162K
• 年卷期：v.24,no.20(October 21, 2008)
• ISSN：1520-5827

文摘

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.