Site specific biochemical functionalization along the height ov vertically aligned carbon nanofiber arrays

Journal Article · Sat Jul 01 00:00:00 EDT 2006 · Chemistry of Materials

DOI:https://doi.org/10.1021/cm052680g· OSTI ID:978259

McKnight, Timothy E ^[1]; Peeraphatdit, Chorthip ^[1]; Jones, Stephen W ^[1]; Fowlkes, Jason Davidson ^[1]; Fletcher, Benjamin L ^[1]; Klein, Kate L ^[1]; Melechko, Anatoli Vasilievich ^[1]; Doktycz, Mitchel John ^[1]; Simpson, Michael L ^[1]

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1. ORNL

Flexible strategies for the biochemical functionalization of synthetic nanoscale materials can enhance their impact upon a broader range of devices and applications. Here we report approaches for the heterogeneous functionalization of vertically aligned carbon nanofibers, a nanostructured material increasingly used to provide nanoscale components in microfabricated devices. Photoresist blocking strategies are developed for site-specific physical, chemical, and electrochemical functionalization of nanofiber arrays both spatially across regions of the device as well as along the length of the vertical nanofibers. These approaches are explored for the functionalization of nanofiber surfaces with gold, conductive polymers, and DNA and for the biotinylation and subsequent capture of active enzyme- and quantum-dot-conjugated (strept)avidins. Functionalizations are visualized with both fluorescent and electron microscopy and characterized using dye and enzyme assays.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
• Sponsoring Organization: Work for Others (WFO)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 978259
• Journal Information: Chemistry of Materials, Vol. 18, Issue 14; ISSN 0897-4756
• Country of Publication: United States
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
CARBON
DNA
DYES
ELECTRON MICROSCOPY
ENZYMES
GOLD
POLYMERS