Studies on Electrochemical Properties of Functionalized Carbon Nanotube Bucky Paper Electrodes for Biosensor Applications

Chupp, Jeremy; Papa, Henry; Gonzales, Leon J.; Turgeon, Olivier; Chatterjee, Jhunu

doi:10.4172/2321-6212.1000130

Cited by 1 publication

(2 citation statements)

References 25 publications

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“…In addition to their excellent CNT-like properties, buckypapers also cover a large area and are easy to control, so the current research uses for buckypapers are fairly extensive and are getting considerable attention. These include biosensors [23][24][25], electrical and thermal conductivity [26,27], gas filters [28], field emissions [29,30], etc. At present, the research on the application of buckypaper in biosensors has just begun, and there is not much relevant literature.…”

Section: Introductionmentioning

confidence: 99%

“…At present, the research on the application of buckypaper in biosensors has just begun, and there is not much relevant literature. It has been found that buckypaper made up of carboxyl-functionalized CNTs with incorporated gold nanoparticles could be highly sensitive glucose [24,25] and hydrogen peroxide [31] detectors. Buckypapers fabricated using functionalized CNTs are also used as working electrodes to detect dopamine [25].…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of Carboxylated Carbon Nanotube Buckypaper Composite Films for Bovine Serum Albumin Detection

Lee

Shih

et al. 2022

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The salient point of this study is to fabricate carbon nanotube (CNT) buckypaper composite films prepared through the methods of pumping filtration and spin coating. Firstly, carboxylated CNTs were used to make the original buckypaper specimen and further modify the buckypaper surface by incorporating different surface modifiers. Then, all of original (unmodified) and modified buckypaper composite films had different concentrations of bovine serum albumin (BSA) added, and differential pulse voltammetry (DPV) electrochemical measurement was used to measure the characteristics of the various buckypaper composite films, after adding different concentrations of BSA. The experimental results show that the contact angles for four modified specimens are smaller than that of the original unmodified S–BP specimen (62°). These results indicate that the four modifiers used in this study can improve the hydrophilic properties of the original, unmodified S–BP specimen, and benefit the subsequent bonding of a modified specimen with aqueous BSA. In addition to the improvement of the hydrophilic properties of the modified specimen, which affects the bonding with BSA, the bonding type produced by the modifier also plays an essential role in the bonding between specimen and BSA. Therefore, the S–BP–EDC/NHS and S–BP–TA specimens have better linear dependence between log (BSA concentration) and oxidation current data.

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