Upcoming Webinars  

The Society for Cryobiology is pleased to present free webinars throughout the year on a wide variety of cryobiology topics. 

If you are interested in being added to the pool of potential speakers please contact [email protected] with a brief biography and summary of your presentation proposal. Please note application does not guarantee your presentation as all proposals are assessed by the webinar committee. 


YOUNG CRYOBIOLOGY RESEARCHERS
TUESDAY 12 MARCH 2024

9 AM US/Pacific | 12 PM US/Eastern | 5 PM Central Europe | 8 PM Gulf Standard | 12 AM China Standard (next day)

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Co-Chair: Dr. Shangping Wang Clemson University, USA
Co-Chair: Dr. Wim Wolkers University of Veterinary Medicine Hannover; NIFE, Lower Saxony Centre for Biomedical Engineering, Hannover

Dejia Liu PhD Candidate, NIFE, University of Veterinary Medicine Hannover
AFFILIATION PROFILE

HEAT TRANSFER DURING SOLID SURFACE VITRIFICATION OF DROPLETS
In this presentation, we show how numerical simulations can be used to study cooling dynamics of droplets exposed to solid surface vitrification (SSV) or solid surface freezing (SSF). Furthermore, we have investigated cryosurvival of droplets of human red blood cells exposed to conditions resulting in either SSV or SSF.

BIOGRAPHY
He studied mechanical engineering at the Leibniz University Hannover and is now conducting his PhD studies at the University of Veterinary Medicine Hannover in the Biostabilization group of Dr. Wolkers where he investigates membrane and tissue transport processes during cryopreservation of reproductive cells and tissues.

 

Charles Elder Graduate Research Assistant, University of Louisville
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HEMOGLOBIN OXIDATION AS A NOVEL METHOD TO INVESTIGATE LYOPROTECTANTS
The desiccation of transfusable red blood cells (RBCs) for long-term ambient storage has been an objective of scientists for decades. Unfortunately, problems such as hemolysis and hemoglobin oxidation are commonly observed after rehydration of dry-preserved cells. Our lab has developed an assay to quantify the effectiveness of lyoprotectants and determine their proficiency at inhibiting hemoglobin oxidation during drying and rehydration. Utilizing this assay, we have investigated the properties of lyoprotectants that provide these molecules with the capacity to inhibit hemoglobin autooxidation. We aim to develop novel formulations of lyoprotectants with high intracellular delivery into RBCs to prevent desiccation-induced hemoglobin oxidation.

BIOGRAPHY
Charles A. Elder was born in Louisville, Kentucky, USA. He attended the University of Louisville for his undergraduate and graduate career, receiving a Bachelor of Arts in Biology and Psychology and a Master of Science in Biology. Charles is pursuing his Ph.D. in molecular biology at the University of Louisville. He has published two first-authored papers in his early career and is the Vice-President of the International Cryobiology Young Researchers organization.

 

Lakshya Gangwar PhD Candidate, University of Minnesota, USA
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SCALING PHYSICAL VITRIFICATION AND NANOWARMING TO HUMAN ORGANS
Convective cooling approach works well for smaller systems, it can be a challenge for larger systems, both in i) achieving rapid cooling throughout the volume to avoid ice formation and ii) sufficiently uniform cooling to avoid thermal stresses that can lead to cracking. So far, successful vitrification and rewarming has been demonstrated in models such as rabbit kidneys and rat hearts, kidneys and livers, heart valves where total preserved volume is 10-90mL. To extend these results to scale of human organs this presentation will demonstrate physical success of vitrification & nanowarming as well modeling predictions for various human organs.

BIOGRAPHY
I am a graduate student researching organ cryopreservation, large-scale vitrification, and computational modeling. Trained as a mechanical engineer from IIT Kanpur, India I graduated with an academic excellence award. In my senior year, I earned a DAAD WISE scholarship for summer research at Leibniz University, Hanover. I have volunteered for non-profits like Science for All (UMN) and National Service Scheme (India). Currently, I volunteer for ICYR and Scholarship Leadership Council at NSF-ERC ATP-Bio.