Immobilization of single walled carbon nanotubes on glass surface

Kumar, Sandeep and Kumar, Rajesh and Jindal, V.K. and Bharadwaj, L.M. (2008) Immobilization of single walled carbon nanotubes on glass surface. Materials Letters, 62 (4-5). pp. 731-734. ISSN 0167-577X

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The chemical modification of carbon nanotubes is an emerging area in material science. In the present study we dispersed the carbon nanotubes using optical tweezers and then investigated the covalent immobilization of Single Walled Carbon Nanotubes (SWCNTs) on chemically functionalized glass surface. Carboxylic group was created on SWCNTs and converted into acid chlorides. FT-IR spectra for functionalized SWNTs revealed three additional peaks at 1739.4 cm− 1, 3430.9 cm− 1, and 1642.0 cm− 1 corresponding to carboxyl group, hydroxyl and carbonyl group. Finally these were covalently immobilized on poly-l-lysine coated glass substrate. Atomic Force Microscopic (AFM) analysis confirmed immobilized SWCNTs on glass surface. The covalent immobilization of SWCNTs on glass has an important role in fabrication of carbon nanotubes based electrodes for biosensor and bionanotechnology applications

Item Type: Article
Uncontrolled Keywords: Carbon nanotubes; Poly-l-lysine; Optical tweezers; Immobilization; Functionalization
Subjects: CSIO > Nano Science and Nano Technology
Divisions: Nano Science and Nano Technology
Depositing User: Ms T Kaur
Date Deposited: 22 Jan 2012 14:04
Last Modified: 10 Apr 2012 15:24

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