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Dialysis01:15

Dialysis

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Dialysis is a diffusion-based purification process that separates analyte molecules from a complex matrix. This is accomplished by allowing molecules in the solution to pass through a semipermeable membrane into a liquid on the other side. The membrane is usually made of cellulose acetate or cellulose nitrate, and the second liquid must be miscible with the solution. Ions (e.g., chloride or sodium) or organic molecules (e.g., glucose) can pass through the membrane pores, which generally have...
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Related Experiment Video

Updated: Nov 24, 2025

In Vivo Microdialysis Method to Collect Large Extracellular Proteins from Brain Interstitial Fluid with High-molecular Weight Cut-off Probes
08:17

In Vivo Microdialysis Method to Collect Large Extracellular Proteins from Brain Interstitial Fluid with High-molecular Weight Cut-off Probes

Published on: September 26, 2018

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Dexamethasone-Enhanced Microdialysis and Penetration Injury.

Andrea Jaquins-Gerstl1, Adrian C Michael1

  • 1Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, United States.

Frontiers in Bioengineering and Biotechnology
|December 28, 2020
PubMed
Summary

This study explores the brain

Area of Science:

  • Neuroscience
  • Biomedical Engineering
  • Immunology

Background:

  • Invasive brain monitoring devices cause tissue trauma and immune responses.
  • The impact of this trauma on measurement outcomes is understudied.
  • Modulating the immune response is crucial for reliable long-term device performance.

Purpose of the Study:

  • To investigate the immune response to microdialysis probe implantation.
  • To explore the use of microdialysis for local delivery of anti-inflammatory agents.
  • To discuss applications and challenges of using dexamethasone (DEX) with microdialysis.

Main Methods:

  • Utilized microdialysis for local delivery of dexamethasone (DEX) to brain tissue.
  • Reviewed principles of microdialysis and DEX applications in neuroscience.
Keywords:
braindexamethasonemicrodialysismitigatepenetration injury

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  • Analyzed immune responses, including microglial and macrophage behavior.

    • Main Results:

    • Discussed the immune response to microdialysis probe implantation.
    • Highlighted applications of DEX via microdialysis in neuronal monitoring and neurochemical analysis.
    • Addressed challenges in modulating immune responses and cellular behavior.

    Conclusions:

    • Local delivery of anti-inflammatory agents like DEX via microdialysis can mitigate immune responses.
    • Further research is needed to optimize device implantation and drug delivery for improved long-term neural monitoring.
    • Understanding and managing the foreign body response is key to advancing neural device technology.