In addition to the characteristics of ordinary nanomaterials (surface effect, dielectric confinement effect, small size effect, quantum tunneling effect, etc.), gold nanomaterials also have unique stability, conductivity, excellent biocompatibility and supramolecular And molecular recognition, fluorescence and other characteristics, which make it show broad application prospects in nanoelectronics, optoelectronics, sensing and catalysis, biomolecular labeling, biosensing and other fields. Among a variety of gold nanomaterials with different shapes, gold nanowires have always been highly valued by researchers. Exploring new technologies and methods for preparing gold nanowires, and further expanding its application fields, is one of the current research focuses in the field of nanomaterials.
　　 Gold nanowires have the advantages of large aspect ratio, high flexibility and simple preparation method, and they have shown great potential in the fields of sensors, microelectronics, optical devices, surface enhanced Raman, and biological detection.