In vivo photoacoustic molecular imaging with simultaneous multiple selective targeting using antibody-conjugated gold nanorods

Opt Express. 2008 Nov 10;16(23):18605-15. doi: 10.1364/oe.16.018605.

Abstract

The use of gold nanorods for photoacoustic molecular imaging with simultaneous multiple targeting is reported. Multiple targeting is done by utilizing the tunable optical absorption property of gold nanorods. This technique allows multiple molecular signatures to be obtained by simply switching laser wavelength. HER2 and EGFR were chosen as the primary target molecules for examining two cancer cells, OECM1 and Cal27. Both in vitro and in vivo mouse model imaging experiments were performed, with contrast enhancement of up to 10 dB and 3.5 dB, respectively. The potential in improving cancer diagnosis is demonstrated.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antibodies
  • Computer-Aided Design
  • Drug Delivery Systems / methods
  • Elasticity Imaging Techniques / instrumentation*
  • Equipment Design
  • Equipment Failure Analysis
  • ErbB Receptors / metabolism*
  • Gold*
  • Humans
  • Male
  • Mice
  • Mice, SCID
  • Molecular Probe Techniques / instrumentation*
  • Mouth Neoplasms / diagnostic imaging*
  • Mouth Neoplasms / immunology*
  • Nanostructures* / chemistry
  • Nanostructures* / ultrastructure
  • Reproducibility of Results
  • Sensitivity and Specificity
  • Systems Integration

Substances

  • Antibodies
  • Gold
  • ErbB Receptors