27 research outputs found
Noble Metal Coated Single-Walled Carbon Nanotubes for Applications in Surface Enhanced Raman Scattering Imaging and Photothermal Therapy
Optimized vertical carbon nanotube forests for multiplex surface-enhanced Raman scattering detection
A naked eye aggregation assay for Pb2+ detection based on glutathione-coated gold nanostars
Inhibition of cytomegalovirus infection and photothermolysis of infected cells using bioconjugated gold nanoparticles
Surface enhanced Raman spectroscopy on silver-nanoparticle-coated carbon-nanotube networks fabricated by electrophoretic deposition
In this study, the efficiency of silver nanoparticle (AgNP) decorated carbon nanotube (CNT) based porous substrates has been investigated for surface-enhanced Raman spectroscopy (SERS) applications. The fabrication of uniform thin coatings of carbon nanotubes is accomplished by Electrophoretic Deposition (EPD) on organosilane functionalized silicon substrates. The deposition process exemplifies a fast, reproducible and single-step room temperature coating strategy to fabricate horizontally aligned porous CNT network. Surfactant stabilized AgNPs were deposited on the CNT networks by immersion coating. The acquired Raman spectra of Rhodamine6G (R6G) analyte examined on the fabricated Ag-CNT-Si substrates exhibited enhanced signal intensity values when compared to SERS-active planar AgNP-Si substrates. An overall enhancement factor of ~;109 was achieved for the tested analyte which enables pushing the limit of detection to 1 × 10-12 M (1 pM). The enhancement can be attributed to the large surface area offered by the AgNP-CNT porous network, which is expected to increase the number of effective hot spots for the SERS effect. © 2014 The Korean Institute of Metals and Materials and Springer Science+Business Media Dordrecht
Alizarin dye based ultrasensitive plasmonic SERS probe for trace level cadmium detection in drinking water
Phage based green chemistry for gold ion reduction and gold retrieval
10.1021/am404193jACS Applied Materials and Interfaces62910-91