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Optical sensing and biosensing based on non-spherical noble metal nanoparticles
1Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, China. xiayuns@mail.ahnu.edu.cn.
Analytical and Bioanalytical Chemistry
|December 10, 2015
Summary
Non-spherical noble metal nanoparticles offer tunable optical properties for sensing applications. This review covers design, performance, and applications of nanorods, nanoplates, and nanodendritics in colorimetric and fluorescent sensing.
Area of Science:
- Materials Science
- Nanotechnology
- Analytical Chemistry
Background:
- Non-spherical noble metal nanoparticles (NPs) exhibit tunable localized surface plasmon resonance (LSPR).
- These NPs possess high extinction coefficients and facet-dependent adsorption properties.
- They are increasingly utilized as reporters and modulators in optical sensing.
Purpose of the Study:
- To review recent advancements in the design, performance, and application of colorimetric and fluorescent sensing systems.
- To focus on non-spherical noble metal NPs with varying dimensions: nanorods, nanoplates, and nanodendritics.
- To discuss future research directions in this field.
Main Methods:
- Literature review of studies on non-spherical noble metal NPs for sensing.
- Analysis of NP design strategies influencing optical and binding properties.
- Evaluation of performance metrics for colorimetric and fluorescent sensing applications.
Main Results:
- Non-spherical NPs, including nanorods, nanoplates, and nanodendritics, demonstrate significant potential in optical sensing.
- Their unique optical and surface properties enable sensitive and selective detection.
- Diverse applications in colorimetric and fluorescent sensing/biosensing have been reported.
Conclusions:
- Non-spherical noble metal NPs are versatile platforms for advanced optical sensing and biosensing.
- Further research into their design and application can lead to improved sensing technologies.
- The development of novel NP architectures holds promise for future innovations in the field.
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