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Updated: May 10, 2026

Three-dimensional Optical-resolution Photoacoustic Microscopy
08:31

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Published on: May 3, 2011

Photoacoustic Microscopy in Tissue Engineering.

Xin Cai1, Yu Shrike Zhang, Younan Xia

  • 1Department of Biomedical Engineering, Washington University, St. Louis, Missouri 63130, USA.

Materials Today (Kidlington, England)
|June 15, 2013
PubMed
Summary
This summary is machine-generated.

Photoacoustic tomography (PAT) offers noninvasive imaging of biological tissues. Photoacoustic microscopy (PAM), a type of PAT, provides high-resolution imaging for tissue engineering applications.

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Area of Science:

  • Biomedical imaging
  • Optical imaging
  • Acoustic imaging

Background:

  • Photoacoustic tomography (PAT) is a noninvasive imaging technique for biological tissues.
  • PAT offers scalable spatial resolution and imaging depth (~7 cm) with a high depth-to-resolution ratio (~200).
  • Photoacoustic microscopy (PAM) is a high-resolution variant of PAT for millimeter-depth imaging.

Purpose of the Study:

  • To review previous applications of PAM in tissue engineering.
  • To discuss future developments of PAM in this field.

Main Methods:

  • Photoacoustic tomography (PAT)
  • Photoacoustic microscopy (PAM)
  • Ultrasonic detection frequency selection

Main Results:

  • PAT enables scalable spatial resolution and consistent optical absorption contrasts.
  • PAM achieves micrometer-scale resolution at millimeter depths.
  • PAM is suitable for characterizing scaffold-based samples, cells, and blood vessels.

Conclusions:

  • PAM is a valuable tool for qualitative and quantitative analysis in tissue engineering.
  • Further developments in PAM hold promise for advanced tissue engineering research.