Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Localized surface plasmon resonance (LSPR) of polyelectrolyte-functionalized gold-nanoparticles for bio-sensing
KTH, School of Information and Communication Technology (ICT), Centres, Zhejiang-KTH Joint Research Center of Photonics, JORCEP.
KTH, School of Information and Communication Technology (ICT), Centres, Zhejiang-KTH Joint Research Center of Photonics, JORCEP.
KTH, School of Information and Communication Technology (ICT), Centres, Zhejiang-KTH Joint Research Center of Photonics, JORCEP.
KTH, School of Information and Communication Technology (ICT), Centres, Zhejiang-KTH Joint Research Center of Photonics, JORCEP.
Show others and affiliations
2009 (English)In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, ISSN 0927-7757, E-ISSN 1873-4359, Vol. 332, no 2-3, 172-179 p.Article in journal (Refereed) Published
Abstract [en]

Gold-nanoparticles can be used as a robust tool for bio-sensing based on localized surface plasmon resonance (LSPR). Both local refractive index change and self-assembly of the nanoparticles can lead to some spectral shifts of the LSPR extinction peak. Using different mechanisms of LSPR peak shifts, two types of transducers are set up to detect the streptavidin concentration through the specific recognition with biotin moleculars, which are conjugated to gold-nanoparticles. One is based on the self-assembly of gold-nanoparticles in Solution, and the other is based on the increase of the local refractive index near the surface of the immobilized gold-nanoparticles after streptavidin-biotin binding. The sensitivity and efficiency of the two transducers are compared. Gold-nano particles are functionalized with polyelectrolyte, which can improve significantly the stability of the nanoparticles and reduce the unspecific binding of streptavidin. Polyelectrolyte functionalization also provides a simple way to conjugate gold-nanoparticles with charged molecules such as biotin and BSA-biotin.

Place, publisher, year, edition, pages
2009. Vol. 332, no 2-3, 172-179 p.
Keyword [en]
Localized surface plasmon resonance (LSPR), Self-assembly, Gold-nanoparticle, Polyelectrolyte, Streptavidin, enhanced raman-scattering, metal nanoparticles, single gold, nanorods, cancer
Identifiers
URN: urn:nbn:se:kth:diva-18078DOI: 10.1016/j.colsurfa.2008.09.009ISI: 000262119900015Scopus ID: 2-s2.0-56649120495OAI: oai:DiVA.org:kth-18078DiVA: diva2:336124
Note

QC 20100525

Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2016-12-19Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Authority records BETA

He, Sailing

Search in DiVA

By author/editor
Li, XinJiang, LiZhan, Q. Q.Qian, JunlingHe, Sailing
By organisation
Zhejiang-KTH Joint Research Center of Photonics, JORCEP
In the same journal
Colloids and Surfaces A: Physicochemical and Engineering Aspects

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 91 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf