Affiliation:
1. National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro-76080, Pakistan
2. HEJ Research
Institute of Chemistry, International Centre for Chemical and Biological Sciences, University of Karachi, Karachi
75270, Pakistan
3. College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling
712100, Shaanxi, P. R. China
Abstract
Background:
The selection of capping agent depends on the method of synthesis, nature
of nanoparticles (NPs), and type of the compounds to be analyzed. Therefore, different types of
capping agents such as surfactants, drugs, amino acids, fatty acids, and polymers are used to increase
stability of NPs, avoid aggregation, keep NPs away from one another, thereby achieving
desired morphology as well as the size of NPs.
Introduction:
Recently, the fabrication of NPs has been extensively carried out using synthetic
chemical routes in a wide range of materials. In this review, a comprehensive assessment of the
colorimetric and fluorescent sensing of metal nanoparticles using different capped agents, such as
surfactants, drugs, amino acids, fatty acids, and polymers has been summarized for the present and
future strategies.
Method:
For the synthesis of metal nanoparticles, different methods, metals, and a variety of capping
agents are used to obtain new properties and explore opportunities for innovative applications.
Result:
Capping agents perform their significant role as stabilizers to avoid the over-growth and
coagulation of nanoparticles.
Conclusion:
Capping agents play an essential role in the colorimetric and fluorescent sensing of
metal nanoparticles for particular analytes.
Publisher
Bentham Science Publishers Ltd.