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Rapid Nanoprobe Signal Enhancement by In Situ Gold Nanoparticle Synthesis
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New Gold Nanostructures for Sensor Applications: A Review.

Yuanchao Zhang1,2, Wendy Chu3, Alireza Dibaji Foroushani4

  • 1College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China. yuanchao.zhang@deakin.edu.au.

Materials (Basel, Switzerland)
|August 10, 2017
PubMed
Summary

Gold nanostructures, including nanoparticles and nanowires, offer unique properties for advanced sensing applications. This review covers their fabrication and use in optical and electrochemical sensors like surface-enhanced Raman spectroscopy.

Keywords:
gold nanoparticles (GNPs)gold nanowires (GNWs)nanoelectrodessurface enhanced Raman spectroscopy (SERS)surface enhanced optical spectroscopy

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Analytical Chemistry

Background:

  • Gold nanostructures (nanoparticles and nanowires) possess unique optical, electrical, and mechanical properties.
  • These properties make them suitable for various sensing applications in chemistry and biochemistry.

Purpose of the Study:

  • To provide a comprehensive review of novel properties and fabrication techniques for gold nanostructures.
  • To highlight recent advancements in using gold nanostructures, particularly gold nanowires, for optical and electrochemical sensing.

Main Methods:

  • Review of existing literature on gold nanostructure synthesis and characterization.
  • Analysis of applications in sensing technologies, focusing on surface-enhanced Raman spectroscopy (SERS).

Main Results:

  • Detailed overview of various fabrication methods for gold nanostructures.
  • Demonstration of enhanced performance in optical and electrochemical sensing tools utilizing gold nanostructures.
  • Specific focus on the utility of gold nanowires in SERS.

Conclusions:

  • Gold nanostructures are versatile platforms for developing highly sensitive chemical and biochemical sensors.
  • Continued research into fabrication and properties will drive innovation in sensing technologies.