期刊
JOURNAL OF NANOPARTICLE RESEARCH
卷 13, 期 2, 页码 491-498出版社
SPRINGER
DOI: 10.1007/s11051-010-9971-9
关键词
Gold nanoparticles; Absorption spectrum; Plasmon band; Stabilizer; Colloids; Noble metallic nanoparticles
资金
- Korea government (MOST) [R01-2007-000-20488-0]
- Chonbuk National University
- National Research Foundation of Korea [R01-2007-000-20488-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- Grants-in-Aid for Scientific Research [23659907, 21659449] Funding Source: KAKEN
Gelatin-stabilized gold nanoparticles (AuNPs-gelatin) with controlled particle size were synthesized with simple variation of concentration of gelatin by reducing in situ tetrachloroauric acid with sodium citrate. The nanoparticles showed excellent colloidal stability. Transmission electron microscopy (TEM) revealed the formation of well-dispersed gold nanoparticles (AuNPs) with different sizes. The methodology produces particles 10-15 nm in size depending on the concentration of gelatin used. The measured AuNPs are 10, 11, 12, 13, 14, and 15 nm for AuNPs-gelatin 1, 0.5, 0.25, 0.1 and 0.05%, and pure AuNPs, respectively. The AuNPs-gelatin exhibit size-dependent localized surface plasmon resonance behavior as measured by UV-visible spectroscopy. UV-vis spectroscopy and TEM results suggest that higher concentration of gelatin favor smaller particle size and vice versa. FTIR spectroscopy analysis of AuNPs-gelatin revealed the amino bands and carboxyl peak of gelatin. The crystalline nature of AuNPs was investigated by X-ray diffraction.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据