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Overview Of Cell Separation And Isolation01:20

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Drycells: Cell-Suspension Micro Liquid Marbles for Single-Cell Picking.

Mizuki Tenjimbayashi1, Shota Yamamoto2, Koichiro Uto2

  • 1Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan.

Advanced Materials (Deerfield Beach, Fla.)
|April 27, 2023
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Summary

Researchers developed "drycells," a novel powder technology for effortless single-cell picking. This innovation simplifies cell culturing and analysis by encapsulating cells in a stable, easy-to-handle format.

Keywords:
cell-pickingdrycellsliquid marblessingle-cell isolationsuperhydrophobic nanoparticles

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Area of Science:

  • Biotechnology
  • Materials Science
  • Cell Biology

Background:

  • Cell-picking technology is crucial for cell culturing and analysis.
  • Existing single-cell picking tools often require specialized skills or additional equipment.
  • There is a need for more accessible and efficient cell manipulation methods.

Purpose of the Study:

  • To develop a novel cell-picking tool using dry powder technology.
  • To enable efficient encapsulation and handling of single to multiple cells.
  • To enhance the accessibility and productivity of single-cell analysis.

Main Methods:

  • Forming "drycells" by spraying cell suspensions onto hydrophobic fumed silica nanoparticles.
  • Utilizing superhydrophobic shells formed by nanoparticles to prevent cell droplet coalescence.
  • Controlling encapsulated cell numbers by adjusting drycell size and cell suspension concentration.
  • Employing sieving for size-based sorting and centrifugation for separation and particle recycling.

Main Results:

  • Successfully encapsulated single to multiple cells within a >95% aqueous medium.
  • Demonstrated control over cell encapsulation numbers and the creation of cell colonies within drycells.
  • Showcased the ability to collect drycells using tweezers and separate them via centrifugation.
  • Confirmed the recyclability of the silica nanoparticles used in drycell formation.

Conclusions:

  • The developed "drycells" offer a powerful and accessible cell-picking tool.
  • This technology simplifies cell handling, culturing, and analysis processes.
  • Drycells have the potential to significantly improve the efficiency and throughput of single-cell studies.