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Updated: Apr 21, 2026
Optical Trapping of Plasmonic Nanoparticles for In Situ Surface-Enhanced Raman Spectroscopy Characterizations
Published on: June 23, 2022
Simultaneous synthesis and assembly of silver nanoparticles to three-demensional superstructures for sensitive
Yanqiong Yang1, Wenqin Wang, Tao Chen
1Department of Polymer Science and Engineering, Faculty of Materials Science and Chemical Engineering, and ‡Key Laboratory of Specialty Polymers, Grubbs Institute, Ningbo University , Ningbo 315211, P. R. China.
Abstract:
Construction of superstructures with controllable morphologies from NPs is of great scientific and technological importance. A one-step method for simultaneous synthesis and assembly of Ag NPs to three-dimensional (3D) nanoporous superstructures is demonstrated. By varying the adsorption time of Ag precursors, an array of well-defined Ag superstructures with different morphologies are harvested. A "hot spot"-rich substrate for surface-enhanced Raman spectroscopy is established, which exhibits high sensitivity in trace detection of molecules. It is believed that the presented 3D nanoporous Ag superstructures hold great potential for various uses, such as novel multifunctional sensing and monitoring chips or devices.
