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Ionic-liquid-enhanced glucose sensing ability of non-enzymatic Au/graphene electrodes fabricated using supercritical CO₂ fluid.
Biosens Bioelectron. 2013 Aug 15; 46:30-6.BB

Abstract

Nano-sized Au particles (approximately 10nm in diameter) are uniformly distributed on both graphene and carbon nanotubes (CNTs) using a supercritical CO₂ fluid (SCCO₂), which has gas-like diffusivity, low viscosity, and near-zero surface tension. Since the Au nanoparticles are highly dispersed and tightly anchored on the carbon supports, the obtained nanocomposites exhibit an improved electro-oxidation ability toward glucose as compared to that of the control electrodes prepared using a conventional chemical deposition process (without SCCO₂). The Au/CNT electrode shows a higher glucose sensing current than that of the Au/graphene counterpart, which is due to the three-dimensional architecture interwoven by the CNTs creating a larger number of reaction sites. However, with ionic liquid (IL) incorporation, the detection sensitivity of the latter electrode significantly improved, becoming noticeably greater than that of the former. The synergistic interactions between Au/graphene and IL that lead to the superior electrochemical detection performance are demonstrated and discussed.

Authors+Show Affiliations

Institute of Materials Science and Engineering, National Central University, Taoyuan, Taiwan.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Evaluation Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23500473

Citation

Wu, Jia-Wun, et al. "Ionic-liquid-enhanced Glucose Sensing Ability of Non-enzymatic Au/graphene Electrodes Fabricated Using Supercritical CO₂ Fluid." Biosensors & Bioelectronics, vol. 46, 2013, pp. 30-6.
Wu JW, Wang CH, Wang YC, et al. Ionic-liquid-enhanced glucose sensing ability of non-enzymatic Au/graphene electrodes fabricated using supercritical CO₂ fluid. Biosens Bioelectron. 2013;46:30-6.
Wu, J. W., Wang, C. H., Wang, Y. C., & Chang, J. K. (2013). Ionic-liquid-enhanced glucose sensing ability of non-enzymatic Au/graphene electrodes fabricated using supercritical CO₂ fluid. Biosensors & Bioelectronics, 46, 30-6. https://doi.org/10.1016/j.bios.2013.02.021
Wu JW, et al. Ionic-liquid-enhanced Glucose Sensing Ability of Non-enzymatic Au/graphene Electrodes Fabricated Using Supercritical CO₂ Fluid. Biosens Bioelectron. 2013 Aug 15;46:30-6. PubMed PMID: 23500473.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Ionic-liquid-enhanced glucose sensing ability of non-enzymatic Au/graphene electrodes fabricated using supercritical CO₂ fluid. AU - Wu,Jia-Wun, AU - Wang,Chueh-Han, AU - Wang,Yi-Chen, AU - Chang,Jeng-Kuei, Y1 - 2013/02/24/ PY - 2012/11/17/received PY - 2013/02/04/revised PY - 2013/02/06/accepted PY - 2013/3/19/entrez PY - 2013/3/19/pubmed PY - 2013/10/22/medline SP - 30 EP - 6 JF - Biosensors & bioelectronics JO - Biosens Bioelectron VL - 46 N2 - Nano-sized Au particles (approximately 10nm in diameter) are uniformly distributed on both graphene and carbon nanotubes (CNTs) using a supercritical CO₂ fluid (SCCO₂), which has gas-like diffusivity, low viscosity, and near-zero surface tension. Since the Au nanoparticles are highly dispersed and tightly anchored on the carbon supports, the obtained nanocomposites exhibit an improved electro-oxidation ability toward glucose as compared to that of the control electrodes prepared using a conventional chemical deposition process (without SCCO₂). The Au/CNT electrode shows a higher glucose sensing current than that of the Au/graphene counterpart, which is due to the three-dimensional architecture interwoven by the CNTs creating a larger number of reaction sites. However, with ionic liquid (IL) incorporation, the detection sensitivity of the latter electrode significantly improved, becoming noticeably greater than that of the former. The synergistic interactions between Au/graphene and IL that lead to the superior electrochemical detection performance are demonstrated and discussed. SN - 1873-4235 UR - https://www.unboundmedicine.com/medline/citation/23500473/Ionic_liquid_enhanced_glucose_sensing_ability_of_non_enzymatic_Au/graphene_electrodes_fabricated_using_supercritical_CO₂_fluid_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0956-5663(13)00119-X DB - PRIME DP - Unbound Medicine ER -