Journal
CRYOBIOLOGY
Volume 92, Issue -, Pages 263-266Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.cryobiol.2019.10.004
Keywords
Cryopreservation; Human spermatozoa; Soot; Superhydrophobicity
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Funding
- Bulgarian Ministry of Education and Science under the National Research Programme Young scientists and postdoctoral fellows [577/17.08.2018]
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With the increasing demand in regenerative and reproductive medicine for successful conservation of living matter, the need of reliable platform in cell banking seems inevitable. Whilst the cells storage at cryogenic temperatures is a well-developed method, far less is known about the efficiency of nanotechnology in cryogenics. The primary objective of this study is to represent the first of its kind experimental results related to cryopreservation of human spermatozoa by means of superhydrophobic carbon soot coatings. The inclusion of soot-based water repellent interface during the freezing and thawing of human semen minimizes the solid-liquid interfacial area, retards the heat transfer rate and promotes the recovery of up to 80% of initial motility of post-thaw sperm cells. Our discoveries reveal a fundamentally new and exciting direction of development of cryopreservation technologies in the battle against painful biopsies and repetitive surgeries.
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