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Biological pH sensing based on surface enhanced Raman scattering through a 2-aminothiophenol-silver probe

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Wang, Zhuyuan; Bonoiu, Adela; Samoc, Marek; Cui, Yiping; Prasad, Paras N

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We report pH sensing for biological applications based on surface enhanced Raman scattering (SERS) from silver nanoparticles functionalized with 2-aminothiophenol (2-aminobenzenethiol, 2-ABT). pH-dependent SERS spectra of the attached 2-ABT molecules enable one to sense the pH over the range of 3.0-8.0. We have performed the first demonstration of SERS detection in living cells kept in different pH buffer solutions and show that the pH sensitivity is retained in that case. Thus, the...[Show more]

dc.contributor.authorWang, Zhuyuan
dc.contributor.authorBonoiu, Adela
dc.contributor.authorSamoc, Marek
dc.contributor.authorCui, Yiping
dc.contributor.authorPrasad, Paras N
dc.date.accessioned2015-12-08T22:40:23Z
dc.identifier.issn0956-5663
dc.identifier.urihttp://hdl.handle.net/1885/36475
dc.description.abstractWe report pH sensing for biological applications based on surface enhanced Raman scattering (SERS) from silver nanoparticles functionalized with 2-aminothiophenol (2-aminobenzenethiol, 2-ABT). pH-dependent SERS spectra of the attached 2-ABT molecules enable one to sense the pH over the range of 3.0-8.0. We have performed the first demonstration of SERS detection in living cells kept in different pH buffer solutions and show that the pH sensitivity is retained in that case. Thus, the nanoparticles can be used as probes delivering spatially localized chemical information from biological environments and provide a new way to monitor chemical changes at cellular level.
dc.publisherElsevier
dc.sourceBiosensors and Bioelectronics
dc.subjectKeywords: Cells; Chemical analysis; Nanoparticles; Raman scattering; Silver; Cellular imaging; SERS probe; Surface enhanced Raman scattering; pH sensors; 2 aminothiophenol; nanoparticle; silver; article; biosensor; carcinoma cell; controlled study; human; human cel Cellular imaging; pH sensor; SERS probe; Surface enhanced Raman scattering
dc.titleBiological pH sensing based on surface enhanced Raman scattering through a 2-aminothiophenol-silver probe
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume23
dc.date.issued2008
local.identifier.absfor020501 - Classical and Physical Optics
local.identifier.ariespublicationu9912193xPUB136
local.type.statusPublished Version
local.contributor.affiliationWang, Zhuyuan, State University of New York
local.contributor.affiliationBonoiu, Adela, State University of New York
local.contributor.affiliationSamoc, Marek, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationCui, Yiping , SouthEast University
local.contributor.affiliationPrasad, Paras N, State University of New York
local.description.embargo2037-12-31
local.bibliographicCitation.issue6
local.bibliographicCitation.startpage886
local.bibliographicCitation.lastpage891
local.identifier.doi10.1016/j.bios.2007.09.017
dc.date.updated2015-12-08T10:23:00Z
local.identifier.scopusID2-s2.0-37349050317
CollectionsANU Research Publications

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