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Related Concept Videos

Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been developed.
Imaging Biological Samples with Optical Microscopy01:18

Imaging Biological Samples with Optical Microscopy

Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...

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Updated: Jun 13, 2026

Three-dimensional Optical-resolution Photoacoustic Microscopy
08:31

Three-dimensional Optical-resolution Photoacoustic Microscopy

Published on: May 3, 2011

Data-driven super-resolution optoacoustic imaging via physically encoded signal acquisition.

Xose Luis Dean-Ben1, Irene Pi-Martin2, Daniil Nozdriukhin1

  • 1Instituto de Instrumentación para Imagen Molecular (i3M), CSIC - Universitat Politècnica de València, Camino de Vera S/N, 46022, Valencia, Spain.

Research Square
|June 12, 2026
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Summary

Super-resolution optoacoustic imaging now overcomes depth limitations by tracking microparticles. This breakthrough enables precise imaging with fewer sensors, advancing medical diagnostics.

Keywords:
Optoacoustic imagingacoustic scatteringlocalization imagingphotoacoustic imagingphysically encoded acquisitionsuper-resolution imagingtracking

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Universal Hand-held Three-dimensional Optoacoustic Imaging Probe for Deep Tissue Human Angiography and Functional Preclinical Studies in Real Time

Published on: November 4, 2014

Area of Science:

  • Biomedical Imaging
  • Optics and Photonics
  • Acoustics

Background:

  • Traditional optical imaging faces a resolution-depth trade-off.
  • Optoacoustic (OA) imaging offers improved contrast but requires complex setups.
  • Super-resolution techniques are needed to enhance OA imaging capabilities.

Purpose of the Study:

  • To overcome the resolution-depth trade-off in optical-contrast imaging.
  • To develop a novel super-resolution optoacoustic imaging method.
  • To enable accurate tomographic reconstructions with fewer transducer elements.

Main Methods:

  • Localization and tracking of highly absorbing circulating microparticles.
  • Exploiting multiple ultrasound scattering for microparticle localization.
  • Calibrating the spatially dependent OA impulse response using microparticle signals.
  • Developing a self-calibration methodology using auxiliary transducers.

Main Results:

  • Achieved accurate in vivo localization and tracking of intravenously injected microparticles.
  • Enabled localization optoacoustic tomography (LOT) with significantly fewer transducer elements.
  • Demonstrated super-resolution imaging using a single time-resolved signal through self-calibration.
  • Overcame the longstanding resolution-depth trade-off inherent in optical imaging.

Conclusions:

  • Super-resolution optoacoustic imaging using microparticle tracking offers a powerful new modality.
  • The developed LOT method significantly reduces hardware requirements.
  • Self-calibration enhances imaging accuracy and efficiency, paving the way for advanced biomedical applications.