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- W4308671673 abstract "The development of methods to safely rewarm large volume cryopreserved biological samples remains a barrier to the widespread adoption of cryopreservation. Here, experiments and simulations were performed to demonstrate that ultrasound can increase rewarming rates relative to thermal conduction alone. An ultrasonic rewarming setup based on a custom 444 kHz tubular piezoelectric transducer was designed, characterized, and tested with 2 mL cryovials filled with frozen ground beef. Rewarming rates were characterized in the -20$^{circ}$C to 5$^{circ}$C range. Thermal conduction-based rewarming was compared to thermal conduction plus ultrasonic rewarming, demonstrating a ten-fold increase in rewarming rate when ultrasound was applied. The maximum recorded rewarming rate with ultrasound was 57$^{circ}$C per minute, approximately 2.5 times faster than with thermal conduction alone. Coupled acoustic and thermal simulations were developed and showed good agreement with the heating rates demonstrated experimentally and were also used to demonstrate spatial heating distributions with small ($<$3$^{circ}$C) temperature differentials throughout the sample when the sample was below 0$^{circ}$C. The experiments and simulations performed in this work demonstrate the potential for ultrasound as a rewarming method for cryopreserved tissues, as faster rewarming rates may improve the viability of cryopreserved tissues and reduce the time needed for cells to regain normal function." @default.
- W4308671673 created "2022-11-14" @default.
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- W4308671673 date "2022-11-08" @default.
- W4308671673 modified "2023-09-23" @default.
- W4308671673 title "Experiments and simulations demonstrating the rapid ultrasonic rewarming of frozen beef cryovials" @default.
- W4308671673 doi "https://doi.org/10.48550/arxiv.2211.04282" @default.
- W4308671673 hasPublicationYear "2022" @default.
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