Concentration dependent absorption and scattering characteristics of gold nanoparticles embedded in liquid phantoms

Seyoung Moon, Eunji Sim, Donghyun Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

For biomedical applications, various optical techniques have been explored, all of which are inherently subject to the limited penetration depth of observation. Nanoparticles have thus been introduced as a potential agent to overcome the limit and to reveal more information on biomedical samples. Optical properties of nanoparticles in a turbid medium, however, have remained difficult to measure precisely. In this paper, we investigate the scattering and absorbing properties of gold nanoparticles of varying diameter and different concentration in absorbing liquid phantoms of silica colloid, based on diffuse photometry. Diffuse reflectance patterns have been collected for each phantom with nanoparticles of different size and concentrations relative to base media. The results imply that particle concentration and size perturbs the medium properties, and the effect is dependent on the scattering properties of the particle. For the case where the particle size stays within a range, the scattering property is dominated by the concentration.

Original languageEnglish
Title of host publicationGenetically Engineered and Optical Probes for Biomedical Applications IV
DOIs
Publication statusPublished - 2007
EventGenetically Engineered and Optical Probes for Biomedical Applications IV - San Jose, CA, United States
Duration: 2007 Jan 232007 Jan 24

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume6449
ISSN (Print)1605-7422

Other

OtherGenetically Engineered and Optical Probes for Biomedical Applications IV
CountryUnited States
CitySan Jose, CA
Period07/1/2307/1/24

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Atomic and Molecular Physics, and Optics
  • Radiology Nuclear Medicine and imaging

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  • Cite this

    Moon, S., Sim, E., & Kim, D. (2007). Concentration dependent absorption and scattering characteristics of gold nanoparticles embedded in liquid phantoms. In Genetically Engineered and Optical Probes for Biomedical Applications IV [64490B] (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 6449). https://doi.org/10.1117/12.699982