Journal
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
Volume 10, Issue 12, Pages 8538-8543Publisher
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2010.2484
Keywords
SERS; Chirality; Dynamic Light Scattering (DLS); UV-VIS Absorption Spectroscopy; AFM; HRTEM; Radial Breathing Mode
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We report here a simple method to fabricate the silver nanoparticles (AgNPs) coated DNA-SWCNTs that give SERS signals. Dynamic light scattering (DLS), atomic force microscopy (AFM), and high resolution transmission electron microscopy (HRTEM) suggested the products are dispersive and soluble in aqueous solution. The Raman scattering spectra show AgNPs coated SWCNTs have enhanced the Raman signal when compared with pure SWCNT. From the radial breathing mode (RBM) of the Raman spectra, we can disclose that this DNA-SWCNT has unique chirality, which implies that it could be a good nanoprobe for cell marking.
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