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Related Concept Videos

Cryo-electron Microscopy01:28

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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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Modified MicroSecure Vitrification: A Safe, Simple and Highly Effective Cryopreservation Procedure for Human Blastocysts
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Advances in Cryopreservatives: Exploring Safer Alternatives.

Laura Lomba1, Cristina B García1, Lucía Benito1

  • 1Facultad de Ciencias de la Salud, Universidad San Jorge. Campus Universitario, Autov A23 km 299, 50830 Villanueva de Gállego, Zaragoza, Spain.

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Summary

This review explores cryopreservation substances, highlighting traditional options like alcohols and sugars, and newer, less toxic alternatives such as ionic liquids and deep eutectic solvents for cell and tissue preservation.

Keywords:
biomedicinecell linecryoprotective agentsice recrystallization inhibitiontoxicity

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Area of Science:

  • Biomedical science and research
  • Cellular and tissue preservation technologies

Background:

  • Cryopreservation is essential in biomedical research for preserving cells, tissues, and organs.
  • Conventional cryoprotectants like dimethyl sulfoxide (DMSO) pose toxicity challenges for sensitive samples.

Purpose of the Study:

  • To review diverse cryopreservation substances.
  • To highlight emerging, less toxic alternatives for improved sample viability.

Main Methods:

  • Literature review of cryopreservation agents.
  • Categorization of cryoprotectants based on chemical families.
  • Analysis of toxicity and efficacy of different cryoprotective compounds.

Main Results:

  • Established cryoprotectants include alcohols, sugars, and sulfoxides.
  • Novel compounds like ionic liquids, deep eutectic solvents, and polymers show promise.
  • These newer agents offer reduced toxicity compared to traditional options.

Conclusions:

  • A variety of cryopreservation agents are available, each with specific applications and limitations.
  • Emerging cryoprotectants present opportunities for developing safer and more effective preservation methods.
  • Further research into novel compounds can advance the field of cryobiology.