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Related Concept Videos

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Imaging Biological Samples with Optical Microscopy01:18

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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.
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Related Experiment Video

Updated: Feb 3, 2026

Mechanical Mapping of Spheroids Using Brillouin Spectroscopy
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Noninvasive Imaging: Brillouin Confocal Microscopy.

Miloš Nikolić1, Christina Conrad2, Jitao Zhang3

  • 1Maryland Biophysics Program, University of Maryland, College Park, MD, USA. mnikolic@umd.edu.

Advances in Experimental Medicine and Biology
|October 29, 2018
PubMed
Summary
This summary is machine-generated.

Brillouin spectroscopy, a technique measuring mechanical properties, is now used in cell and tissue biomechanics. This advancement aids cancer research by mapping cellular mechanics in 3D with high resolution.

Keywords:
3D imagingBiomechanicsBrillouin scatteringConfocal microscopyElastic modulusLight scatteringLocal mechanical propertiesNoncontact techniqueNoninvasive measurement

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Area of Science:

  • Biophysics
  • Cellular Mechanics
  • Biomedical Optics

Background:

  • Cellular and tissue mechanical properties are increasingly recognized for their role in disease.
  • Brillouin spectroscopy, originally from physics and material science, is now applied to cell and tissue biomechanics.
  • Advancements in Brillouin spectrometer technology, including speed and confocal microscopy integration, are key for biomedical applications.

Purpose of the Study:

  • To highlight the utility of Brillouin spectroscopy in understanding cell and tissue biomechanics.
  • To discuss the application of Brillouin confocal microscopy in cancer mechanobiology.
  • To showcase the capabilities of Brillouin technology for non-contact mechanical measurements in various biomedical contexts.

Main Methods:

  • Utilizing Brillouin spectroscopy instrumentation adapted for biological samples.
  • Employing confocal microscopy for high spatial resolution 3D measurements.
  • Mapping intracellular and extracellular mechanical properties, including nuclear and cytoplasmic moduli.

Main Results:

  • Brillouin confocal microscopy enables micron spatial resolution and high sensitivity measurements.
  • The technique allows for distinguishing mechanical properties between cellular compartments (nucleus vs. cytoplasm).
  • Changes in mechanical properties due to cellular component perturbations can be detected.

Conclusions:

  • Brillouin confocal microscopy is a powerful tool for cancer mechanobiology, offering insights into tumor progression and metastasis.
  • The non-contact nature of Brillouin technology is suitable for complex experimental setups like 3D tumor models and microfluidic devices.
  • Understanding mechanical factors is crucial for cancer treatment success, and Brillouin spectroscopy provides a means to investigate these factors.