Transactions of the Japan Society of Mechanical Engineers Series B
Online ISSN : 1884-8346
Print ISSN : 0387-5016
Effects of Physiological Isotonic Cryoprotectants on Living Cells during the Freezing-Thawing Process and Effects of their uptake by Electroporation : Alginate-Trehalose Solutions to Sp2 Cells
Ryo SHIRAKASHIKillian J. MULLERVladimir L. SUKHORUKOVUlrich ZIMMERMANN
Author information
Keywords: Electroporation
JOURNAL FREE ACCESS

2002 Volume 68 Issue 672 Pages 2369-2376

Details
Abstract

In the present study, effects of iso-osmolar alginate and trehalose solutions on electroporated or unpulsed control murine myeloma cells (Sp2) during the freezing-thawing process are discussed. To investigate the effects of each cryoprotectant, the freezing-thawing process of electroporated or intact cells were observed, which were suspended in alginate-NaCl solution, alginate-trehalose solution or trehalose solution. The microscopic observation took place also at various cooling rates (-1°C/min, -90°C/min, -5°C/min). It was found that extracellular ice grains in the solution containing trehalose did not mechanically suppress cells even at lowest cooling rate. Further, only a seldom intracellular ice nucleation was observed at all cooling rate for the pulsed or unpulsed cells which were suspended in trehalose solution.

Content from these authors
© The Japan Society of Mechanical Engineers
Previous article Next article
feedback
Top