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Related Concept Videos

Immunogold Electron Microscopy01:20

Immunogold Electron Microscopy

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Immunoelectron microscopy utilizes immunogold labeling of endogenous proteins with specific antibodies to detect and localize these proteins in cells and tissues. The procedure provides insights into the distribution and quantification of protein under different stimulation conditions offering clues about their functions. Conjugating highly electron-dense gold particles with primary or secondary antibodies allow antigen detection on and within cells, with high resolution and specificity.
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Labeling DNA Probes03:31

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DNA probes are fragments of DNA labeled with a reporter tag to enable their detection or purification. The resulting labeled DNA probes can then hybridize to target nucleic acid sequences through complementary base-pairing, and may be used to recover or identify these regions.
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...
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Related Experiment Video

Updated: Dec 2, 2025

Nanogold Labeling of the Yeast Endosomal System for Ultrastructural Analyses
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Labeling and tracking cells with gold nanoparticles.

Ramya Chandrasekaran1, Thiagarajan Madheswaran2, Nagendran Tharmalingam3

  • 1Department of Chemical Engineering, Monash University, Clayton, VIC, Australia.

Drug Discovery Today
|November 1, 2020
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Summary
This summary is machine-generated.

Gold nanoparticles (AuNPs) offer a cost-effective method for cell tracking via computerized tomography (CT). Targeted AuNPs improve CT contrast and sensitivity, reducing radiation dose, but clinical translation faces challenges.

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Area of Science:

  • Biomedical Imaging
  • Nanotechnology
  • Radiology

Background:

  • Gold nanoparticles (AuNPs) are promising contrast agents for computerized tomography (CT) due to their X-ray attenuation and low toxicity.
  • Cell labeling with AuNPs followed by CT tracking provides an efficient and economical approach.

Purpose of the Study:

  • To review the current applications of AuNPs in CT for cell tracking.
  • To discuss the advantages, necessary precautions, and clinical translation challenges of using AuNPs in CT.

Main Methods:

  • Review of existing literature on AuNPs for CT cell tracking.
  • Analysis of AuNP synthesis, functionalization, and CT imaging properties.

Main Results:

  • AuNPs demonstrate significant X-ray attenuation and minimal cytotoxicity, making them suitable for CT contrast agents.
  • Targeted AuNPs enhance CT contrast and sensitivity, potentially lowering radiation exposure.

Conclusions:

  • AuNPs are effective for cell labeling and CT tracking, offering improved imaging and reduced radiation.
  • Clinical application of AuNP-based CT cell tracking requires careful consideration of safety and translation hurdles.