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Optical-Resolution Photoacoustic Microscopy for Volumetric and Spectral Analysis of Histological and Immunochemical Samples**
Filetype[PDF - 1.86 MB]


Details:
  • Pubmed ID:
    24961608
  • Pubmed Central ID:
    PMC4116434
  • Description:
    Optical-resolution photoacoustic microscopy (OR-PAM) is an imaging modality with superb penetration depth and excellent absorption contrast. Here we demonstrate, for the first time, that this technique can advance quantitative analysis of conventional chromogenic histochemistry. Because OR-PAM can quantify the absorption contrast at different wavelengths, it is feasible to spectrally resolve the specific biomolecules involved in a staining color. Furthermore, the tomographic capability of OR-PAM allows for noninvasive volumetric imaging of a thick sample without microtoming it. By immunostaining the sample with different chromogenic agents, we further demonstrated the ability of OR-PAM to resolve different types of cells in a coculture sample with imaging depths up to 1 mm. Taken together, the integration of OR-PAM with (immuno)histochemistry offers a simple and versatile technique with broad applications in cell biology, pathology, tissue engineering, and related biomedical studies.

  • Document Type:
  • Collection(s):
  • Funding:
    DP1 EB016986/DP/NCCDPHP CDC HHS/United States
    DP1 EB016986/EB/NIBIB NIH HHS/United States
    DP1 OD000798/OD/NIH HHS/United States
    P30 NS057105/NS/NINDS NIH HHS/United States
    R01 CA134539/CA/NCI NIH HHS/United States
    R01 CA157277/CA/NCI NIH HHS/United States
    R01 CA159959/CA/NCI NIH HHS/United States
    R01 CA159959/CA/NCI NIH HHS/United States
    R01 CA186567/CA/NCI NIH HHS/United States
    R01 CA186567/CA/NCI NIH HHS/United States
    R01 EB010049/EB/NIBIB NIH HHS/United States
    R01 EB016963/EB/NIBIB NIH HHS/United States
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