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Label-free robotic mitochondrial biopsy.

Yanmei Ma1, Weikang Hu1,2, Muyang Ruan1

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|October 22, 2025
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This summary is machine-generated.

Researchers developed a label-free robotic system for extracting mitochondria from living cells. This advanced nanoprobing platform enables precise organelle manipulation and transplantation for studying cellular dysfunction and disease.

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Area of Science:

  • Biotechnology
  • Cell Biology
  • Nanotechnology

Background:

  • Current cellular probing methods like fluorescent labeling cause cell damage and interfere with analysis.
  • Precise, minimally invasive intracellular operations without labeling remain a significant challenge.

Purpose of the Study:

  • To introduce an automated, label-free nanoprobing platform for extracting mitochondria from living cells.
  • To overcome the limitations of fluorescent labeling in cellular micromanipulation.

Main Methods:

  • Developed a multifunctional nanoprobing platform with two addressable nanoelectrodes.
  • Utilized electrochemical detection of reactive oxygen and nitrogen species for mitochondrial identification.
  • Employed dielectrophoresis for trapping, manipulation, and extraction of mitochondria.
  • Integrated automated robotic micromanipulation for high spatiotemporal resolution.

Main Results:

  • Successfully demonstrated label-free extraction of intact mitochondria from living cells.
  • Validated mitochondrial extraction using fluorescence labeling and quantitative polymerase chain reaction.
  • Confirmed the activity of extracted and transplanted mitochondria through successful fusion with recipient cell networks.

Conclusions:

  • The developed system offers a powerful tool for label-free, in situ organelle extraction.
  • Enables precise study of disease mechanisms linked to dysfunctional organelles.
  • Paves the way for single-cell surgeries involving organelle transplantation.