Effect of nanoparticle morphologies on signal strength in photoacoustic sensing

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Spherical gold nanoparticles with a plasmonic extinction peak at 532 nm and two sizes of star shaped gold nanoparticles with plasmonic extinction peaks at 532 nm and 600 nm were synthesised and introduced into tissue phantoms as exogenous absorbers. The photoacoustic signals generated from the three different nanoparticle morphologies embedded in tissue the phantoms is compared. The effect of nanoparticle concentration on the generated photoacoustic signal strength was also investigated for the spherical nanoparticles. At an excitation laser wavelength of 532 nm, the spherical gold nanoparticles were shown to produce the greatest photoacoustic response.

Original languageEnglish
Title of host publicationIEEE SENSORS 2017 - Conference Proceedings
Place of PublicationPiscataway, N.J.
Number of pages3
ISBN (Print)978-1-5090-1013-4
Publication statusPublished - 21 Dec 2017
EventIEEE SENSORS 2017 - Scottish Exhibition and Conference Centre, Glasgow, United Kingdom
Duration: 29 Oct 20171 Nov 2017


ConferenceIEEE SENSORS 2017
Country/TerritoryUnited Kingdom
Internet address


  • gold nano-spheres
  • gold nano-stars
  • nanoparticles
  • photoacoustic


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