lnu.sePublications
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
Nanowires for Biosensing: Lightguiding of Fluorescence as a Function of Diameter and Wavelength
Lund University.ORCID iD: 0000-0002-8372-1617
Lund University.ORCID iD: 0000-0001-5617-6337
Lund University;AstraZeneca R&D Gothenburg.
Lund University;Univ Calif San Diego, USA.
Show others and affiliations
2018 (English)In: Nano letters (Print), ISSN 1530-6984, E-ISSN 1530-6992, Vol. 18, no 8, p. 4796-4802Article in journal (Refereed) Published
Abstract [en]

Semiconductor nanowires can act as nanoscaled optical fibers, enabling them to guide and concentrate light emitted by surface-bound fluorophores, potentially enhancing the sensitivity of optical biosensing. While parameters such as the nanowire geometry and the fluorophore wavelength can be expected to strongly influence this lightguiding effect, no detailed description of their effect on in-coupling of fluorescent emission is available to date. Here, we use confocal imaging to quantify the lightguiding effect in GaP nanowires as a function of nanowire geometry and light wavelength. Using a combination of finite-difference time-domain simulations and analytical approaches, we identify the role of multiple waveguide modes for the observed lightguiding. The normalized frequency parameter, based on the step-index approximation, predicts the lightguiding ability of the nanowires as a function of diameter and fluorophore wavelength, providing a useful guide for the design of optical biosensors based on nanowires.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2018. Vol. 18, no 8, p. 4796-4802
Keywords [en]
Nanowires, III-V, fluorescence, confocal microscopy, biosensing, waveguiding
National Category
Biochemistry and Molecular Biology
Research subject
Chemistry, Biochemistry
Identifiers
URN: urn:nbn:se:lnu:diva-78105DOI: 10.1021/acs.nanolett.8b01360ISI: 000441478300025PubMedID: 30001138Scopus ID: 2-s2.0-85049998667OAI: oai:DiVA.org:lnu-78105DiVA, id: diva2:1252404
Available from: 2018-10-01 Created: 2018-10-01 Last updated: 2019-08-29Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textPubMedScopus

Authority records BETA

Månsson, Alf

Search in DiVA

By author/editor
Verardo, DamianoLindberg, Frida W.Lard, MercyMånsson, AlfLinke, Heiner
By organisation
Department of Chemistry and Biomedical Sciences
In the same journal
Nano letters (Print)
Biochemistry and Molecular Biology

Search outside of DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 24 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