Enzymatic glucose biosensor based on CeO2 nanorods synthesized by non-isothermal precipitation

Patil, D.S.; Dũng, Nguyễn Quốc; Jung, Hyuck; Ahn, Se Yong; Jang, Dong Mi; Kim, Dojin

doi:10.1016/j.bios.2011.10.013

Cited by 88 publications

(39 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The peaks at 28.5°, 33.3°, 47.6°, 56.5°, 58.6°, 69.1°, 76.1°, 78.6°, and 88.3° correspond to the (111), (200), (220), (311), (222), (400), (331), (420), and (422) planes of the CeO 2 crystal phase, respectively [8]. The appearance of these peaks implies that CeO 2 exhibits a cubic fluorite structure.…”

Section: Resultsmentioning

confidence: 99%

“…Cerium oxide (CeO 2 ) is a potential material for enzymatic glucose biosensors because of its unique properties, such as chemical inertness, biocompatibility, nontoxicity, and its ability to be suitable isoelectric point for enzyme adsorption [8]. CeO 2 can highly induce electron transfer; as such, this material is a very suitable electron conductor for enzymatic biosensors.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Non-Enzymatic Glucose Biosensor Based on CuO-Decorated CeO2 Nanoparticles

Guan

Zhang

et al. 2016

Nanomaterials

View full text Add to dashboard Cite

Copper oxide (CuO)-decorated cerium oxide (CeO2) nanoparticles were synthesized and used to detect glucose non-enzymatically. The morphological characteristics and structure of the nanoparticles were characterized through transmission electron microscopy, X-ray photoelectron spectroscopy, and X-ray diffraction. The sensor responses of electrodes to glucose were investigated via an electrochemical method. The CuO/CeO2 nanocomposite exhibited a reasonably good sensitivity of 2.77 μA mM−1cm−2, an estimated detection limit of 10 μA, and a good anti-interference ability. The sensor was also fairly stable under ambient conditions.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Non-Enzymatic Glucose Biosensor Based on CuO-Decorated CeO2 Nanoparticles

Guan

Zhang

et al. 2016

Nanomaterials

View full text Add to dashboard Cite

show abstract

“…11). The selectivity of the bioelectrode has been monitored at their physiological concentrations such as urea (1 mM), lactic acid (LA) (1 mM), cholesterol (5 mM), Linear range (mM) Sensitivity (lA mM -1 cm -2 ) References PDDA GOx/Au/CNT a 0.5-5.0 2.5 [65] GOx/Pt/FCNA/GCE b 0.5-8 6.0 [66] Nafion/GOx/Ag/Pdop c @CNT/GCE 0.05-1.1 3.1 [67] RGO/Ag/GOx 0.5-12.5 3.84 [68] GOD/CeO 2 NRs -0.165 [69] GOD-chitosan-BCNi -3.5 [70] GOD/mesoporous TiO 2 -3.9 [71] GOD/porous carbon-silica -1.8 [72] ERGO/CS/ZrO 2 /GOD 0. ascorbic acid (AA) (0.05 mM), and glucose (Glu) (5 mM). The discrepancy in the magnitude of current response was examined in PBS buffer by injecting required amount of interfering substance in equal proportion with that of glucose analyte.…”

Section: Selectivity In Terms Of Interference Studymentioning

confidence: 99%

Nano-CeO2 decorated graphene based chitosan nanocomposites as enzymatic biosensing platform: fabrication and cellular biocompatibility assessment

Mohanty

Nayak

2015

Bioprocess Biosyst Eng

View full text Add to dashboard Cite

The present study summarizes the designing of a green transducer phase based on nano-cerium oxide (CeO2) decorated reduced graphene oxide (RGO) reinforced chitosan nanocomposites as an effective enzyme immobilizer and bio-sensing matrix for glucose analyte. Also, it scrutinizes the biocompatibility and cell viability of the synthesized nanohybrid with human fibroblastic macrophage cell line. CeO2 nanoparticles (NPs) were successfully grown on graphene nanosheet in the presence of cationic surfactant followed by facile hydrothermal treatment. The eventual growth of synthesized CeO2 nanocrystals on the graphene layer was confirmed from X-ray diffraction (XRD), transmission electron microscopy (TEM) and Raman analysis. The biocompatibility of the synthesized nanohybrid was also evident from the MTT assay. Glucose oxidase (GOx) was employed on the green polymer nanocomposites modified FTO electrode to fabricate an enzymatic bioelectrode. The electroanalytical response of the GOx/nano-CeO2/RGO/CS/FTO bioelectrode towards electrooxidation of glucose analyte was investigated by electrochemical impedance (EIS) and cyclic voltammetry (CV) study. The resulting biosensor exhibited a good electrochemical response to glucose within the linear detection range of 0.05-6.5 mM with a low detection limit of 2 μM and a sensitivity of 7.198 μA mM(-1) cm(-2). The bioelectrode also showed good shelf life (~10 weeks) and negligible interfering ability under controlled environment. The obtained results indicate that nano-CeO2/RGO nanohybrid based chitosan nanocomposites achieve a biocompatible biosensing platform for effective enzyme immobilization due to the excellent synergistic effects between the CeO2 nanoparticles and graphene sheet.

show abstract

“…The modified electrodes were further characterized by EIS and the interfacial electron transfer resistance (R et ) can be calculated from the diameter of Nyquist diagram (Musameh et al, 2011;Patil et al, 2012), so the Nyquist diagrams of different modified electrodes were recorded. As illustrated in Fig.…”

Section: Electrochemical Characterization Of the Modified Electrodesmentioning

confidence: 99%

An enhanced sensing platform for ultrasensitive impedimetric detection of target genes based on ordered FePt nanoparticles decorated carbonnanotubes

Zhang

Zong

Zheng

et al. 2013

Biosensors and Bioelectronics

View full text Add to dashboard Cite

Enzymatic glucose biosensor based on CeO2 nanorods synthesized by non-isothermal precipitation

Cited by 88 publications

References 30 publications

Non-Enzymatic Glucose Biosensor Based on CuO-Decorated CeO2 Nanoparticles

Non-Enzymatic Glucose Biosensor Based on CuO-Decorated CeO2 Nanoparticles

Nano-CeO2 decorated graphene based chitosan nanocomposites as enzymatic biosensing platform: fabrication and cellular biocompatibility assessment

An enhanced sensing platform for ultrasensitive impedimetric detection of target genes based on ordered FePt nanoparticles decorated carbonnanotubes

Contact Info

Product

Resources

About