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Functionalization of single-walled carbon nanotubes with ribonucleic acidsopen access
- Issue Date
- Dec-2013
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- Carbon nanotubes; Biomaterials; Dispersion; Photoluminescence; Raman spectroscopy; Atomic force microscopy; AFM
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.63, no.11, pp 2199 - 2203
- Pages
- 5
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 63
- Number
- 11
- Start Page
- 2199
- End Page
- 2203
- ISSN
- 0374-4884
1976-8524
- Abstract
- The optical properties of single-walled carbon nanotubes (SWCNTs) dispersed in aqueous solutions of ribonucleic acids (RNA) purified from Escherichia coli were studied using photoluminescence (PL), Raman, and absorption spectroscopy. SWCNT-RNA complexes, down to a single isolated nanotube level, were successfully synthesized. SWCNT signatures in Raman, PL, and absorption spectroscopy were observed from the SWCNT-RNA complexes. Observation of two distinct PL peaks, one at 1.248 eV and the other at 1.392 eV, confirmed the existence of isolated (6,5) and (6,4) SWCNTs, respectively. Atomic force microscope images and height profiles also showed evidence of isolated SWCNT-RNA complex.
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