Abstract
One of the most interesting applications for carbon nanotubes is as a support material for bioanalytical devices. in this work, we successfully used an ultraviolet light initiated "graft from" polymerization method to fabricate polymer functionalized carbon nanotubes (PFCNTs) with pendant chains of various functionalities, including poly (ethylene glycol) chains to boost dispersibility and pendant epoxy groups for protein conjugate sites. a model enzyme, alkaline phosphatase, was used to study biomolecule loading efficiency as well as the retention of enzyme activity. Samples with various ratios of the two monomers were fabricated to optimize their use in aqueous environments, and an optimal composition was determined. This method allows the enhancement of enzyme loading amount while retaining high enzyme activity. the morphology of the carbon nanotubes were characterized by STEM and AFM before and after functionalization. in addition, the resulting PFCNTs were analyzed by FT-IR, TGA, and XPS. © 2009 American Chemical Society.
Recommended Citation
P. Zhang and D. B. Henthorn, "Fabrication of High-capacity Biomolecular Carriers from Dispersible Single-walled Carbon Nanotube-polymer Composites," Langmuir, vol. 25, no. 20, pp. 12308 - 12314, American Chemical Society, Oct 2009.
The definitive version is available at https://doi.org/10.1021/la9015349
Department(s)
Chemical and Biochemical Engineering
International Standard Serial Number (ISSN)
1520-5827; 0743-7463
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 American Chemical Society, All rights reserved.
Publication Date
20 Oct 2009
PubMed ID
19775136
