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Related Concept Videos

Cryo-electron Microscopy01:28

Cryo-electron Microscopy

Conventional electron microscopy (EM) involves dehydration, fixation, and staining of biological samples, which distorts the native state of biological molecules and results in several artifacts. Also, the high-energy electron beam damages the sample and makes it difficult to obtain high-resolution images. These issues can be addressed using cryo-EM, which uses frozen samples and gentler electron beams. The technique was developed by Jacques Dubochet, Joachim Frank, and Richard Henderson, for...

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Related Experiment Video

Updated: Jun 24, 2026

Freezing, Thawing, and Packaging Cells for Transport
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A cryopreservation method for bioengineered 3D cell culture models.

Alba Herrero-Gómez1, Marc Azagra1, Irene Marco-Rius1

  • 1Institute for Bioengineering of Catalonia, Baldiri i Reixac 10-12, 08028 Barcelona, Spain.

Biomedical Materials (Bristol, England)
|June 8, 2022
PubMed
Summary
This summary is machine-generated.

Researchers developed a new method for cryopreserving three-dimensional (3D) cell models. This technique uses a specialized scaffold to improve cell survival after thawing, advancing cell storage and transport.

Keywords:
3D cell culturebiofabricationbiomaterialscarboxymethyl cellulosecryopreservationhepatocytesspheroids

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Area of Science:

  • Cryobiology
  • Biotechnology
  • Cell Biology

Background:

  • Cryopreservation technologies for tissues and cell lines are well-established.
  • Viable cryopreservation methods for 3D cell models and patient samples are currently lacking.
  • Existing methods struggle with maintaining the integrity of complex cell structures during freezing and thawing.

Purpose of the Study:

  • To develop and demonstrate a viable protocol for cryopreservation and thawing of 3D cell spheroids.
  • To address the gap in cryobiology for bioengineered 3D cell models.
  • To improve post-thaw viability and integrity of 3D cell structures.

Main Methods:

  • Developed a protocol utilizing a 3D carboxymethyl cellulose scaffold for spheroid cryopreservation.
  • Optimized precise freezing and thawing conditions.
  • Tested the protocol using hepatocytes, enabling self-arrangement into spheroids within the scaffold.
  • Compared results with conventional pellet-based cryopreservation models.

Main Results:

  • The developed protocol successfully cryopreserved hepatocyte spheroids using the 3D scaffold.
  • The scaffold supported spheroid structure during freezing and enhanced post-thaw viability.
  • Significantly improved cell viability after thawing compared to conventional pellet models.
  • Demonstrated the scaffold's ability to maintain 3D structure and cell integrity.

Conclusions:

  • The novel spheroid cryopreservation protocol offers a viable solution for preserving 3D cell models.
  • This technique enhances cell viability and structural integrity post-thaw compared to traditional methods.
  • The protocol has the potential to advance cryobiology and facilitate high-integrity transport of 3D cell models between facilities.
  • Future applications may include cryopreservation of patient-derived 3D models for clinical and research purposes.