Electrochemical Sensors Based on Single-walled Carbon Nanotubes for Biological Detection
Year: 2011
Type: dissertation
Abstract: In this work thesis we aim at discussing electrochemical biosensors based on single-walled carbon nanotubes for biological detection. The main strategy is to obtain modified electrodes with carbon nanotubes with two different classes of strategy. This can be realized in two ways: a surface modification strat- egy and a bulk modification strategy. The first one concerns the modification of patterned gold electrodes in which the tridimensionality is assured by the creation of a controlled forest of single-walled carbon nanotubes. The second strategy proposed is the modification of electrodes by means of a bulk doping of materials. We realized carbon nanotubes doped polyacrylamide hydrogels (HYs) acting as biosensors for glucose detection. Finally examples for the integration of biosensing and microfluidic environ- ments are proposed. Electrochemical measurements (EIS, CV and CA) were performed in order to characterize samples and substrates. Also morphological measurements (AFM and SEM) were conducted to study topographic features of samples. Biocom- patibility tests and electrical measurements were performed when treating with living systems.
Author: Francesco Lamberti
Language: English
Subfield: Analytical Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2287120751