Electronic Supplementary Material Direct electrochemistry of

advertisement
Electronic Supplementary Material
Direct electrochemistry of glucose oxidase and a biosensor for glucose based on a
glass carbon electrode modified with MoS2 nanosheets decorated with gold
nanoparticles
Shao Su, Haofan Sun, Fei Xu, Lihui Yuwen, Chunhai Fan*, Lianhui Wang*
Table S1. The comparsion of the performance of prepared sensor and others reported
in the literatures for glucose detection.
Glucose biosensor
Linear range
(mM)
Detcti
Ref.
on limit
(μM)
Gox-AuNPs@MoS2
0.01-0.3
2.8
This
work
GOx-graphene
0.1-10
10±2
[1]
GOx-graphene-AuNPs-chi
2-10
180
[2]
GOx-graphene-chitosan
0.08-12
20
[3]
Nafion-GOx-GNSs
0.2-1.4
-
[4]
GOx-MWCNTs-chitosan
0-7.8
-
[5]
GOx-colloidal gold
0.08-0.28
10
[6]
GOx-CNTs
0-30
80
[7]
Nafion-GOx-CNTs-CdTe
0-0.7
-
[8]
GOx-sol-gel-CNTs
0.2-20
50
[9]
GOx-PAN
0-5
20
[10]
Nafion-GOx-OMC
0.5-1.5
156.62
[11]
tosan
Abbreviation: [AuNPs] gold nanoparticles, [GNSs] graphite nanosheets, [MWCNTs] multi-walled
carbon nanotubes, [CNTs] carbon nanotubes, [PAN] microporous polyacrylonitrile, [OMC]
ordered mesoporous carbon.
0
-4
500M


-3
-10
-5
-6
-7
-20
-8
10M
-0.6
0
100
200
300
400
Concentration/M
-0.4
500
-0.2
E/V (vs. SCE)
Figure S1. Cyclic voltammograms of Nafion-GOx-AuNPs@MoS2/GCE in the
presence of various concentrations of glucose in the O2-saturated human serum. The
inset is the calibration curve corresponding to amperometric responses. Scan rate: 100
mV·s-1.
References:
1. Wu P, Shao Q, Hu Y, Jin.J, Yin.Y, Zhang.H Cai. C (2010), Direct electrochemistry
of glucose oxidase assembled on graphene and application of glucose detection.
Electrochim Acta. 55: 8606-8614. DOI: 10.1016/j.electacta.2010.07.079.
2. Shan CS., Yang HF, Han DX, Zhang QX, Ivaska A, Niu L, (2010)
Graphene/AuNPs/chitosan nanocomposite film for glucose biosensing. Biosens.
Bioelectron. 25: 1070-1074. DOI: 10.1016/j.bios.2009.09.024.
3. Kang XH, Wang J, Wu H, Aksay IA, Liu J, Lin YH, (2009) Glucose
oxidase-graphene-chitosan modified electrode for direct electrochemistry and glucose
sensing. Biosens. Bioelectron. 25: 901-905. DOI: 10.1016/j.bios.2009.09.004.
4. Fu CL, Yang WS, Chen X, Evans DG, (2009) Direct electrochemistry of glucose
oxidase on a graphite nanosheet-Nafion composite film modified electrode,
Electrochem. Commun. 11: 997-1000. DOI: 10.1016/j.elecom.2009.02.042.
5. Liu Y, Wang MK, Zhao F, Xu ZA, Dong SJ, (2005) The direct electron transfer of
glucose oxidase and glucose biosensor based on carbon nanotubes/chitosan matrix.
Biosens. Bioelectron. 21:984-988. DOI: 10.1016/j.bios.2005.03.003.
6. Liu SQ, Ju HX, (2003) Reagentless glucose biosensor based on direct electron
transfer of glucose oxidase immobilized on colloidal gold modified carbon paste
electrode. Biosens. Bioelectron. 19: 177-183. DOI: 10.1016/S0956-5663(03)00172-6.
7. Lin YH, Lu F, Tu Y, Ren ZF, (2004) Glucose biosensors based on carbon nanotube
nanoelectrode ensembles. Nano Lett. 4: 191-195. DOI: 10.1021/nl0347233.
8. Liu Q, Lu X, Li J, Yao X, Li JH, (2007) Direct electrochemistry of glucose oxidase
and electrochemical biosensing of glucose on quantum dots/carbon nanotubes
electrodes. Biosens. Bioelectron. 22: 3203-3209. DOI: 10.1016/j.bios.2007.02.013.
9. Salimi A, Compton RG, Hallaj R, (2004) Glucose biosensor prepared by glucose
oxidase encapsulated sol-gel and carbon-nanotube-modified basal plane pyrolytic
graphite electrode. Anal. Biochem. 333: 49-56. DOI: 10.1016/j.ab.2004.06.039.
10. Zheng H, Xue H, Zhang Y, Shen Z, (2002) A glucose biosensor based on
microporous polyacrylonitrile synthesized by single rare-earth catalyst. Biosens.
Bioelectron. 17: 541-545. DOI: 10.1016/S0956-5663(02)00010-6.
11. Zhou M, Shang L, Li BL. Huang LJ, Dong SJ, (2008) Highly orderly mesoporous
carbons as electrode material for the construction of electrochemical dehydrogenaseand oxidase-based biosensors. Biosens. Bioelectron. 24: 442-447. DOI:
10.1016/j.bios.2008.04.025.
Download