Tags

Type your tag names separated by a space and hit enter

Acid yellow 9 as a dispersing agent for carbon nanotubes: preparation of redox polymer-carbon nanotube composite film and its sensing application towards ascorbic acid and dopamine.
Biosens Bioelectron. 2010 Aug 15; 25(12):2592-7.BB

Abstract

In this study, we show that acid yellow 9 (4-amino-1-1'-azobenzene-3,4'-disulfonicacid, AY) is a good stabilizing agent for multi-walled carbon nanotubes (MWCNTs). MWCNTs dispersed in AY solution was remained stable about three months and even remained stable after centrifugation at 10,000 rpm for 30 min. Using MWCNTs/AY dispersion, thin-films were prepared on indium tin oxide coated glass electrode and glassy carbon electrodes. Further, dried films of MWCNTs/AY were subjected to electropolymerization in 0.1M H(2)SO(4) solution. Adsorbed AY molecules on MWCNTs get polymerized and they yield a polymer-MWCNTs nanocomposite film on electrode surface which is found to be electrochemically active in wide pH range (1-11). Characterization studies were performed using cyclic voltammetry and SEM. These studies are supported that hybrid material PAY/MWCNTs was obtained. Moreover, newly synthesized PAY-MWCNTs composite film showed excellent electrocatalytic activity towards oxidation of dopamine (DA) and ascorbic acid (AA) with high sensitivity in physiological pH. Linear sweep voltammetry was employed to the determination of DA in the presence of AA in the range of 2x10(-7) to 1.4x10(-6) M. Amperometry was employed to determination of AA at 0.0 V in the range from 1x10(-6) to 5.6x10(-5) M, and DA, uric acid are not interfered on the steady-state current of AA. In addition, real samples such as dopamine injection and AA spiked into human urine were analyzed using PAY/MWCNTs composite modified electrode and satisfactory results were obtained.

Links

Publisher Full Text

Authors+Show Affiliations

Kumar SA
Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei, Taiwan. sakumar80@gmail.com
Wang SF
No affiliation info available
Yang TC
No affiliation info available
Yeh CT
No affiliation info available

MeSH

Ascorbic AcidAzo CompoundsBiosensing TechniquesDopamineHumansMicroscopy, Electron, ScanningNanotubes, CarbonOxidation-ReductionPolymers

Pub Type(s)

Journal Article

Language

eng

PubMed ID

20462750

Citation

Kumar, S Ashok, et al. "Acid Yellow 9 as a Dispersing Agent for Carbon Nanotubes: Preparation of Redox Polymer-carbon Nanotube Composite Film and Its Sensing Application Towards Ascorbic Acid and Dopamine." Biosensors & Bioelectronics, vol. 25, no. 12, 2010, pp. 2592-7.
Kumar SA, Wang SF, Yang TC, et al. Acid yellow 9 as a dispersing agent for carbon nanotubes: preparation of redox polymer-carbon nanotube composite film and its sensing application towards ascorbic acid and dopamine. Biosens Bioelectron. 2010;25(12):2592-7.
Kumar, S. A., Wang, S. F., Yang, T. C., & Yeh, C. T. (2010). Acid yellow 9 as a dispersing agent for carbon nanotubes: preparation of redox polymer-carbon nanotube composite film and its sensing application towards ascorbic acid and dopamine. Biosensors & Bioelectronics, 25(12), 2592-7. https://doi.org/10.1016/j.bios.2010.04.024
Kumar SA, et al. Acid Yellow 9 as a Dispersing Agent for Carbon Nanotubes: Preparation of Redox Polymer-carbon Nanotube Composite Film and Its Sensing Application Towards Ascorbic Acid and Dopamine. Biosens Bioelectron. 2010 Aug 15;25(12):2592-7. PubMed PMID: 20462750.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Acid yellow 9 as a dispersing agent for carbon nanotubes: preparation of redox polymer-carbon nanotube composite film and its sensing application towards ascorbic acid and dopamine. AU - Kumar,S Ashok, AU - Wang,Sea-Fue, AU - Yang,Thomas C-K, AU - Yeh,Chun-Ting, Y1 - 2010/04/24/ PY - 2010/02/08/received PY - 2010/03/27/revised PY - 2010/04/18/accepted PY - 2010/5/14/entrez PY - 2010/5/14/pubmed PY - 2010/10/30/medline SP - 2592 EP - 7 JF - Biosensors & bioelectronics JO - Biosens Bioelectron VL - 25 IS - 12 N2 - In this study, we show that acid yellow 9 (4-amino-1-1'-azobenzene-3,4'-disulfonicacid, AY) is a good stabilizing agent for multi-walled carbon nanotubes (MWCNTs). MWCNTs dispersed in AY solution was remained stable about three months and even remained stable after centrifugation at 10,000 rpm for 30 min. Using MWCNTs/AY dispersion, thin-films were prepared on indium tin oxide coated glass electrode and glassy carbon electrodes. Further, dried films of MWCNTs/AY were subjected to electropolymerization in 0.1M H(2)SO(4) solution. Adsorbed AY molecules on MWCNTs get polymerized and they yield a polymer-MWCNTs nanocomposite film on electrode surface which is found to be electrochemically active in wide pH range (1-11). Characterization studies were performed using cyclic voltammetry and SEM. These studies are supported that hybrid material PAY/MWCNTs was obtained. Moreover, newly synthesized PAY-MWCNTs composite film showed excellent electrocatalytic activity towards oxidation of dopamine (DA) and ascorbic acid (AA) with high sensitivity in physiological pH. Linear sweep voltammetry was employed to the determination of DA in the presence of AA in the range of 2x10(-7) to 1.4x10(-6) M. Amperometry was employed to determination of AA at 0.0 V in the range from 1x10(-6) to 5.6x10(-5) M, and DA, uric acid are not interfered on the steady-state current of AA. In addition, real samples such as dopamine injection and AA spiked into human urine were analyzed using PAY/MWCNTs composite modified electrode and satisfactory results were obtained. SN - 1873-4235 UR - https://www.unboundmedicine.com/medline/citation/20462750/Acid_yellow_9_as_a_dispersing_agent_for_carbon_nanotubes:_preparation_of_redox_polymer_carbon_nanotube_composite_film_and_its_sensing_application_towards_ascorbic_acid_and_dopamine_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0956-5663(10)00194-6 DB - PRIME DP - Unbound Medicine ER -