Journal
JOURNAL OF NANOPARTICLE RESEARCH
Volume 15, Issue 9, Pages -Publisher
SPRINGER
DOI: 10.1007/s11051-013-1900-2
Keywords
Catalysis; Characterization; Coverage rate; Gold nanoparticles
Categories
Funding
- National Science Fund for Distinguished Young Scholars [20925520]
- National Natural Science Foundation of China [61001035, 21235003]
- Shanghai Municipal Education Commission
- Shanghai Education Development Foundation [10CG42]
- Innovation Program of Shanghai Municipal Education Commission [12YZ004]
- Shanghai Science and Technology Committee [11DZ2272100]
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Gold nanoparticles (AuNPs) have been widely used in many areas, and the nanoparticles usually have to be functionalized with some molecules before use. However, the information about the characterization of the functionalization of the nanoparticles is still limited or unclear, which has greatly restricted the better functionalization and application of AuNPs. Here, we propose a chemical way to accurately characterize the functionalization of AuNPs. Unlike the traditional physical methods, this method, which is based on the catalytic property of AuNPs, may give accurate coverage rate and some derivative information about the functionalization of the nanoparticles with different kinds of molecules. The performance of the characterization has been approved by adopting three independent molecules to functionalize AuNPs, including both covalent and non-covalent functionalization. Some interesting results are thereby obtained, and some are the first time to be revealed. The method may also be further developed as a useful tool for the characterization of a solid surface.
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