Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/55483
PIRA download icon_1.1View/Download Full Text
DC FieldValueLanguage
dc.contributorDepartment of Applied Physics-
dc.creatorZhang, M-
dc.creatorLiao, C-
dc.creatorMak, CH-
dc.creatorYou, P-
dc.creatorMak, CL-
dc.creatorYan, F-
dc.date.accessioned2016-09-07T02:22:00Z-
dc.date.available2016-09-07T02:22:00Z-
dc.identifier.urihttp://hdl.handle.net/10397/55483-
dc.language.isoenen_US
dc.publisherNature Publishing Groupen_US
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/en_US
dc.rightsThe following publication Zhang, M., Liao, C., Mak, C. et al. Highly sensitive glucose sensors based on enzyme-modified whole-graphene solution-gated transistors. Sci Rep 5, 8311 (2015) is available at https://dx.doi.org/10.1038/srep08311en_US
dc.titleHighly sensitive glucose sensors based on enzyme-modified whole-graphene solution-gated transistorsen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.volume5-
dc.identifier.doi10.1038/srep08311-
dcterms.abstractNoninvasive glucose detections are convenient techniques for the diagnosis of diabetes mellitus, which require high performance glucose sensors. However, conventional electrochemical glucose sensors are not sensitive enough for these applications. Here, highly sensitive glucose sensors are successfully realized based on whole-graphene solution-gated transistors with the graphene gate electrodes modified with an enzyme glucose oxidase. The sensitivity of the devices is dramatically improved by co-modifying the graphene gates with Pt nanoparticles due to the enhanced electrocatalytic activity of the electrodes. The sensing mechanism is attributed to the reaction of H2O2 generated by the oxidation of glucose near the gate. The optimized glucose sensors show the detection limits down to 0.5 μM and good selectivity, which are sensitive enough for non-invasive glucose detections in body fluids. The devices show the transconductances two orders of magnitude higher than that of a conventional silicon field effect transistor, which is the main reason for their high sensitivity. Moreover, the devices can be conveniently fabricated with low cost. Therefore, the whole-graphene solution-gated transistors are a high-performance sensing platform for not only glucose detections but also many other types of biosensors that may find practical applications in the near future.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationScientific reports, 6 2015, v. 5, no. , p. 1-6-
dcterms.isPartOfScientific reports-
dcterms.issued2015-
dc.identifier.scopus2-s2.0-84949784160-
dc.identifier.pmid25655666-
dc.identifier.eissn2045-2322-
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumberRGC-B1-163, OA_IR/PIRAen_US
dc.description.fundingSourceRGCen_US
dc.description.pubStatusPublisheden_US
Appears in Collections:Journal/Magazine Article
Files in This Item:
File Description SizeFormat 
Zhang_Sensitive_Glucose_Sensors.pdf1.28 MBAdobe PDFView/Open
Open Access Information
Status open access
File Version Version of Record
Access
View full-text via PolyU eLinks SFX Query
Show simple item record

Page views

190
Last Week
0
Last month
Citations as of Mar 24, 2024

Downloads

54
Citations as of Mar 24, 2024

SCOPUSTM   
Citations

180
Last Week
2
Last month
Citations as of Mar 28, 2024

WEB OF SCIENCETM
Citations

336
Last Week
1
Last month
Citations as of Mar 28, 2024

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.