Template-Confined Site-Specific Electrodeposition of Nanoparticle Cluster-in-Bowl Arrays as Surface Enhanced Raman Spectroscopy Substrates
| Autor: | Yangchun Yu, Shikuan Yang, Yue Liu, Yanling Wang |
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| Rok vydání: | 2018 |
| Předmět: |
Silver
Materials science Surface Properties Physics::Medical Physics Metal Nanoparticles Physics::Optics Nanoparticle Bioengineering Nanotechnology 02 engineering and technology Spectrum Analysis Raman 010402 general chemistry Proof of Concept Study 01 natural sciences Hemoglobins Optical sensing Cluster (physics) Animals Sulfhydryl Compounds Particle Size Instrumentation Plasmon Fluid Flow and Transfer Processes Process Chemistry and Technology Serum Albumin Bovine Surface-enhanced Raman spectroscopy 021001 nanoscience & nanotechnology Electroplating 0104 chemical sciences Poliovirus Cattle Gold 0210 nano-technology |
| Zdroj: | ACS Sensors. 3:2343-2350 |
| ISSN: | 2379-3694 |
| Popis: | Nanoparticle clusters have important applications in plasmonics and optical sensing fields. Various methods have been used to construct nanoparticle clusters, represented by assembling preprepared nanoparticles using DNA. However, preparation of nanoparticle clusters using a one-step method is still challenging. Herein, by using prepatterned microscale bowls as individual reaction containers, clusters of Au nanoparticles with a homogeneous structure are electrodeposited at the bottom of each bowl. The structure of the nanoparticle clusters can be simply manipulated by varying electrodeposition parameters. After coating these Au nanoparticle cluster-in-bowl arrays with a thin layer of Ag film, they can be used as surface enhanced Raman spectroscopy (SERS) substrates with an SERS enhancement factor of ∼10 |
| Databáze: | OpenAIRE |
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