Preferential Biofunctionalization of Carbon Nanotubes Grown by Microwave Plasma-Enhanced CVD

Sungwon S. Kim, Purdue University - Main Campus
Placidus B. Amama, Purdue University - Main Campus
Timothy Fisher, Purdue University - Main Campus

Date of this Version


This document has been peer-reviewed.



Multiwalled carbon nanotubes (CNTs) were grown by microwave plasma chemical vapor deposition using dendrimer-templated Fe nanoparticles as a catalyst. Variation of the de bias voltage and the calcination temperature of the dendrimer-templated Fe2O3 catalyst yielded a matrix of CNT arrays. Samples were immobilized with glucose oxidase, which were used for amperometric cyclic voltammetry experiments. Spectroscopic and electron microscopic characterizations indicate that enzyme adsorption per unit CNT area is higher for samples with lower quality, suggesting that CNTs with higher levels of defect densities are desirable for biosensing applications.


Engineering | Nanoscience and Nanotechnology