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Related Experiment Video

Updated: Dec 27, 2025

Labeling hESCs and hMSCs with Iron Oxide Nanoparticles for Non-Invasive in vivo Tracking with MR Imaging
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Gold Nanoparticles as a Computed Tomography Marker for Stem Cell Tracking.

Md Nafiujjaman1, Taeho Kim2

  • 1Department of Biomedical Engineering, Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI, USA.

Methods in Molecular Biology (Clifton, N.J.)
|March 1, 2020
PubMed
Summary

Biocompatible gold nanoparticles enable effective computed tomography (CT) imaging for tracking transplanted mesenchymal stem cells (MSCs) in rodent models, overcoming limitations of traditional CT labels.

Keywords:
CTCell labelingCell trackingGold nanoparticlesIn vivoStem cells

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Area of Science:

  • Biomedical imaging
  • Nanotechnology
  • Stem cell biology

Background:

  • Effective stem cell therapy requires precise tracking of transplanted cells.
  • Computed tomography (CT) offers quantitative real-time cell distribution analysis.
  • Existing CT contrast agents often raise biocompatibility concerns.

Purpose of the Study:

  • To develop a protocol for using gold nanoparticles (AuNPs) as biocompatible CT contrast agents.
  • To enable efficient labeling of mesenchymal stem cells (MSCs) with AuNPs.
  • To demonstrate the feasibility of tracking AuNP-labeled MSCs using CT in vivo.

Main Methods:

  • Protocol development for gold nanoparticle synthesis and characterization.
  • Mesenchymal stem cell (MSC) labeling with AuNPs.
  • In vivo computed tomography (CT) imaging for cell tracking in rodent models.

Main Results:

  • Successful labeling of MSCs with biocompatible AuNPs.
  • Demonstrated real-time tracking of AuNP-labeled MSCs using CT.
  • Validated the efficacy of AuNPs as CT contrast agents for cell tracking.

Conclusions:

  • Gold nanoparticles serve as effective and biocompatible CT contrast agents for stem cell tracking.
  • This protocol facilitates advancements in stem cell therapy and regenerative medicine research.
  • CT imaging with AuNPs provides a valuable tool for monitoring cell distribution in vivo.