Citation: LI Jian, WANG Jing-Hua, YANG A-Long, SHI Zhen-Ning, WANG Jiang-Wei, ZHAO Qin-Fu, ZHANG Ying. Preparation and Photothermal Catalytic Properties of Gold Nanospheres and Nanorods[J]. Chinese Journal of Inorganic Chemistry, ;2018, 34(9): 1610-1614. doi: 10.11862/CJIC.2018.189 shu

Preparation and Photothermal Catalytic Properties of Gold Nanospheres and Nanorods

Shenyang Pharmaceutical University, Shenyang 110016, China

Corresponding author: ZHANG Ying, zhangying@syphuedu.cn
Received Date: 10 April 2018
Revised Date: 4 May 2018

Figures(6)

Gold nanospheres in size of 5 nm were prepared by chloroauric acid (HAuCl₄) as raw material, polyvi-nylpyrrolidone K30 (PVP) as a stabilizer and sodium borohydride (NaBH₄) as reducing agent. Seed growth method was used to prepare gold nanorods in aspect ratio R ranged from 2.5 to 4, by cationic surfactant cetyltrimethyla-mmonium bromide (CTAB) as template and sodium oleate (NaOL) as stabilizer. Temperature of gold nanospheres solution in concentration of 0.4 mg·mL^-1 rises 10.2℃ and the solution catalyzes the release of NO from nitrosothiols in the blood under irradiation of 2 W·cm^-2 NIR laser (808 nm) for 10 min, with the maximum release is up to 1.42 nmol·L^-1. Under the same photothermal and catalytic conditions, temperature of gold nanorods (R=3.01) solution in concentration of 0.4 mg·mL^-1 rises 41.3℃ and the solution catalyzes the release of NO from nitrosothiols in the blood with the maximum release is up to 1.89 nmol·L^-1. Photothermal effect and the catalytic performance of both nanospheres and nanorods increase with the increase of the concentration, and the catalytic effect and photothermal conversion performance of gold nanorods are superior to those of gold nanospheres.
- gold nanospheres,
- gold nanorods,
- photothermal properties,
- NO catalysis
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