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Article: Electronic sensitivity of carbon nanotubes to internal water wetting

TitleElectronic sensitivity of carbon nanotubes to internal water wetting
Authors
KeywordsBiosensor
Carbon Nanotube
Nanoconfinement
Nanofluidics
Nanopore
Water In Nanoscale Channels
Issue Date2011
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journals/ancac3/index.html
Citation
Acs Nano, 2011, v. 5 n. 4, p. 3113-3119 How to Cite?
AbstractWe have constructed devices in which the interior of a single-walled carbon nanotube (SWCNT) field-effect transistor acts as a nanofluidic channel that connects two fluid reservoirs, permitting measurement of the electronic properties of the SWCNT as it is wetted by an analyte. Wetting of the inside of the SWCNT by water turns the transistor on, while wetting of the outside has little effect. These observations are consistent with theoretical simulations that show that internal water both generates a large dipole electric field, causing charge polarization of the tube and metal electrodes, and shifts the valence band of the SWCNT, while external water has little effect. This finding may provide a new method to investigate water behavior at nanoscale. This also opens a new avenue for building sensors in which the SWCNT simultaneously functions as a concentrator, nanopore, and extremely sensitive electronic detector, exploiting the enhanced sensitivity of the interior surface. © 2011 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/169606
ISSN
2015 Impact Factor: 13.334
2015 SCImago Journal Rankings: 7.120
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorCao, Den_US
dc.contributor.authorPang, Pen_US
dc.contributor.authorHe, Jen_US
dc.contributor.authorLuo, Ten_US
dc.contributor.authorPark, JHen_US
dc.contributor.authorKrstic, Pen_US
dc.contributor.authorNuckolls, Cen_US
dc.contributor.authorTang, Jen_US
dc.contributor.authorLindsay, Sen_US
dc.date.accessioned2012-10-25T04:53:38Z-
dc.date.available2012-10-25T04:53:38Z-
dc.date.issued2011en_US
dc.identifier.citationAcs Nano, 2011, v. 5 n. 4, p. 3113-3119en_US
dc.identifier.issn1936-0851en_US
dc.identifier.urihttp://hdl.handle.net/10722/169606-
dc.description.abstractWe have constructed devices in which the interior of a single-walled carbon nanotube (SWCNT) field-effect transistor acts as a nanofluidic channel that connects two fluid reservoirs, permitting measurement of the electronic properties of the SWCNT as it is wetted by an analyte. Wetting of the inside of the SWCNT by water turns the transistor on, while wetting of the outside has little effect. These observations are consistent with theoretical simulations that show that internal water both generates a large dipole electric field, causing charge polarization of the tube and metal electrodes, and shifts the valence band of the SWCNT, while external water has little effect. This finding may provide a new method to investigate water behavior at nanoscale. This also opens a new avenue for building sensors in which the SWCNT simultaneously functions as a concentrator, nanopore, and extremely sensitive electronic detector, exploiting the enhanced sensitivity of the interior surface. © 2011 American Chemical Society.en_US
dc.languageengen_US
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journals/ancac3/index.htmlen_US
dc.relation.ispartofACS Nanoen_US
dc.subjectBiosensoren_US
dc.subjectCarbon Nanotubeen_US
dc.subjectNanoconfinementen_US
dc.subjectNanofluidicsen_US
dc.subjectNanoporeen_US
dc.subjectWater In Nanoscale Channelsen_US
dc.titleElectronic sensitivity of carbon nanotubes to internal water wettingen_US
dc.typeArticleen_US
dc.identifier.emailTang, J: jinyao@hku.hken_US
dc.identifier.authorityTang, J=rp01677en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1021/nn200251zen_US
dc.identifier.pmid21452854-
dc.identifier.scopuseid_2-s2.0-79955409912en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79955409912&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume5en_US
dc.identifier.issue4en_US
dc.identifier.spage3113en_US
dc.identifier.epage3119en_US
dc.identifier.isiWOS:000289742100081-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridCao, D=35738486100en_US
dc.identifier.scopusauthoridPang, P=35739122500en_US
dc.identifier.scopusauthoridHe, J=35205291600en_US
dc.identifier.scopusauthoridLuo, T=7102058686en_US
dc.identifier.scopusauthoridPark, JH=37108345000en_US
dc.identifier.scopusauthoridKrstic, P=7003447804en_US
dc.identifier.scopusauthoridNuckolls, C=7003418403en_US
dc.identifier.scopusauthoridTang, J=12791614900en_US
dc.identifier.scopusauthoridLindsay, S=35595480000en_US

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