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Cryoprotectant

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with biological molecules as water molecules are displaced. Hydrogen bonding in aqueous solutions is important for proper protein and DNA function. Thus, as the cryoprotectant replaces the water molecules, the biological material retains its native physiological structure and function, although they
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to -135 °C with their proprietary vitrification cocktail. Upon rewarming, the kidney was successfully transplanted into a rabbit, with complete functionality and viability, able to sustain the rabbit indefinitely as the sole functioning kidney.
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Cryoprotectants are also used to preserve foods. These compounds are typically sugars that are inexpensive and do not pose any toxicity concerns. For example, many (raw) frozen chicken products contain a sucrose and
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of a solution or of a material. In this way, the cryoprotectant prevents actual freezing, and the solution maintains some flexibility in a glassy phase. Many cryoprotectants also function by forming
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from damage. Instead, many biotechnology companies are researching the development of other cryoprotectants more suitable for such uses. A successful discovery may eventually make possible the bulk
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Cryoprotectants operate by increasing the solute concentration in cells. However, in order to be biologically viable they must easily penetrate and must not be toxic to cells.
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J.E. Strassmann; R.E. Lee Jr.; R.R. Rojas & J.G Baust (1984). "Caste and sex differencesin cold-hardiness in the social wasps, Polistes annularis and P. exclamans".
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Imrat, P.; Suthanmapinanth, P.; Saikhun, K.; Mahasawangkul, S.; Sostaric, E.; Sombutputorn, P.; Jansittiwate, S.; Thongtip, N.; et al. (February 2013).
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is non-reducing sugar produced by yeasts and insects in copious amounts. Its use as a cryoprotectant in commercial systems has been patented widely.
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When glucose is used as a cryoprotectant by arctic frogs, massive amounts of glucose are released at low temperature and a special form of
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was for many years the most effective of all artificially created cryoprotectants. Cryoprotectant mixtures have been used for
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is a practice that involves conventional cryoprotectants to store genetic material with the intention of future revival.
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7. Urmatskikh A.V. "Method of cryopreservation of cells, organs, tissues and organisms." RU 2804972 C2, 04.05.2022.
309:(a wasp). In this species, the different levels of cryoprotectant can be used to distinguish between morphologies. 1143: 1103: 838: 410: 338: 330: 1108: 1081: 1009: 1118: 1113: 1086: 970: 600: 459: 237:(DMSO) is also regarded as a conventional cryoprotectant. Glycerol and DMSO have been used for decades by 737:
Larson, D. J.; Middle, L.; Vu, H.; Zhang, W.; Serianni, A. S.; Duman, J.; Barnes, B. M. (15 April 2014).
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are no longer immersed in an aqueous environment. This preservation strategy is most often utilized in
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Karlsson, Jens O.M.; Szurek, Edyta A.; Higgins, Adam Z.; Lee, Sang R.; Eroglu, Ali (February 2014).
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at temperatures around −196 °C. However, glycerol cannot be used to protect whole
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allows for this extra glucose to enter the cells. When the frog rewarms during
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as a cryoprotectant for blood cells and bull sperm, allowing storage in
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and are more effective than single-agent cryoprotectants. A mixture of
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organs. A substantial step in that direction has already occurred.
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Substance used to protect biological tissue from freezing damage
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as cryoprotectants. One species that uses cryoprotectant is
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Fahy GM; Wowk B; Pagotan R; Chang A; et al. (2009).
501:"Physical and biological aspects of renal vitrification" 550:"Cryoprotectant Toxicity: Facts, Issues, and Questions" 277:, sometimes appended with sugars, as cryoprotectants. 1022: 824: 817: 920:Strategies for engineered negligible senescence 132:Some cryoprotectants function by lowering the 795: 189:, in an effort to eliminate freezing damage. 8: 455:Cryoconservation of animal genetic resources 259:Cryoconservation of animal genetic resources 460:Cryoconservation of plant genetic resources 1184: 821: 802: 788: 780: 197:Conventional cryoprotectants are glycols ( 754: 676: 627: 575: 524: 229:has been used to reduce ice formation in 491: 1040:Differential technological development 153:Mixtures of cryoprotectants have less 7: 846:Aldehyde-stabilized cryopreservation 1129:Future-oriented technology analysis 25: 1183: 185:. Vitrification is also used in 743:Journal of Experimental Biology 470:Cryostasis (clathrate hydrates) 221:is commonly used as automobile 34:is a substance used to protect 669:10.1016/j.cryobiol.2013.11.002 620:10.1016/j.cryobiol.2012.11.003 1: 1156:Technology in science fiction 475:List of emerging technologies 106:Twenty-First Century Medicine 134:glass transition temperature 128:Glass transition temperature 253:that are cold-preserved in 241:to reduce ice formation in 165:), propylene glycol, and a 1228: 1161:Technology readiness level 1097:Technological unemployment 331:polar and subpolar regions 284: 96:storage (or "banking") of 1179: 1144:Technological singularity 1104:Technological convergence 353:to reduce ice formation. 339:southern brown tree frogs 42:damage (i.e. that due to 839:Microgravity bioprinting 411:2-Methyl-2,4-pentanediol 201:containing at least two 65:create cryoprotectants ( 1109:Technological evolution 1082:Exploratory engineering 1010:Whole genome sequencing 295:Insects most often use 1119:Technology forecasting 1114:Technological paradigm 1087:Proactionary principle 971:Robot-assisted surgery 1045:Disruptive innovation 954:Regenerative medicine 949:Personalized medicine 811:Emerging technologies 568:10.1089/rej.2014.1656 555:Rejuvenation Research 285:Further information: 1092:Technological change 1035:Collingridge dilemma 517:10.4161/org.5.3.9974 317:Cold-adapted arctic 67:antifreeze compounds 1149:Technology scouting 1124:Accelerating change 893:Genetic engineering 377:solution in water. 275:antifreeze proteins 71:antifreeze proteins 1166:Technology roadmap 986:Synthetic genomics 976:Relational biology 964:Tissue engineering 888:Generative biology 756:10.1242/jeb.101931 716:10.1007/BF02223613 450:Antifreeze protein 333:naturally produce 306:Polistes exclamans 287:Antifreeze protein 269:Examples in nature 235:Dimethyl sulfoxide 163:dimethyl sulfoxide 1199: 1198: 1018: 1017: 981:Synthetic biology 959:Stem-cell therapy 942:engineered uterus 856:Artificial organs 777: 749:(12): 2193–2200. 548:Best, BP (2015). 440: 439: 375:sodium phosphates 368:Food preservation 325:, and some other 205:groups), such as 80:has been used in 36:biological tissue 16:(Redirected from 1219: 1187: 1186: 1134:Horizon scanning 1050:Ephemeralization 878:Brain transplant 822: 804: 797: 790: 781: 775: 769: 768: 758: 734: 728: 727: 703:Insectes Sociaux 697: 691: 690: 680: 648: 642: 641: 631: 605: 596: 590: 589: 579: 545: 539: 538: 528: 496: 465:Cryopreservation 417:Propylene glycol 386: 273:Arctic fish use 227:propylene glycol 211:propylene glycol 108:has vitrified a 21: 1227: 1226: 1222: 1221: 1220: 1218: 1217: 1216: 1202: 1201: 1200: 1195: 1175: 1014: 1003:Oncolytic virus 905:Head transplant 813: 808: 773: 772: 736: 735: 731: 699: 698: 694: 650: 649: 645: 603: 598: 597: 593: 547: 546: 542: 498: 497: 493: 488: 446: 441: 397:Ethylene glycol 383: 370: 315: 293: 283: 271: 255:liquid nitrogen 219:Ethylene glycol 207:ethylene glycol 195: 151: 130: 122: 86:liquid nitrogen 28: 23: 22: 18:Cryoprotectants 15: 12: 11: 5: 1225: 1223: 1215: 1214: 1204: 1203: 1197: 1196: 1194: 1193: 1180: 1177: 1176: 1174: 1173: 1168: 1163: 1158: 1153: 1152: 1151: 1146: 1141: 1136: 1131: 1126: 1116: 1111: 1106: 1101: 1100: 1099: 1089: 1084: 1079: 1078: 1077: 1072: 1067: 1062: 1052: 1047: 1042: 1037: 1032: 1026: 1024: 1020: 1019: 1016: 1015: 1013: 1012: 1007: 1006: 1005: 995: 990: 989: 988: 978: 973: 968: 967: 966: 961: 951: 946: 945: 944: 934: 929: 924: 923: 922: 915:Life extension 912: 910:Isolated brain 907: 902: 901: 900: 890: 885: 880: 875: 873:Biofabrication 870: 869: 868: 863: 861:Organ printing 853: 848: 843: 842: 841: 834:3D bioprinting 830: 828: 819: 815: 814: 809: 807: 806: 799: 792: 784: 771: 770: 729: 710:(3): 291–301. 692: 643: 591: 562:(5): 422–436. 540: 511:(3): 167–175. 490: 489: 487: 484: 483: 482: 480:Lyophilization 477: 472: 467: 462: 457: 452: 445: 442: 438: 437: 436: 435: 429: 424: 419: 414: 406: 405: 404: 399: 394: 384: 382: 379: 369: 366: 314: 311: 282: 279: 270: 267: 239:cryobiologists 194: 191: 150: 147: 138:hydrogen bonds 129: 126: 121: 118: 98:transplantable 32:cryoprotectant 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 1224: 1213: 1210: 1209: 1207: 1192: 1191: 1182: 1181: 1178: 1172: 1171:Transhumanism 1169: 1167: 1164: 1162: 1159: 1157: 1154: 1150: 1147: 1145: 1142: 1140: 1137: 1135: 1132: 1130: 1127: 1125: 1122: 1121: 1120: 1117: 1115: 1112: 1110: 1107: 1105: 1102: 1098: 1095: 1094: 1093: 1090: 1088: 1085: 1083: 1080: 1076: 1073: 1071: 1068: 1066: 1063: 1061: 1058: 1057: 1056: 1053: 1051: 1048: 1046: 1043: 1041: 1038: 1036: 1033: 1031: 1028: 1027: 1025: 1021: 1011: 1008: 1004: 1001: 1000: 999: 996: 994: 991: 987: 984: 983: 982: 979: 977: 974: 972: 969: 965: 962: 960: 957: 956: 955: 952: 950: 947: 943: 940: 939: 938: 937:Organ culture 935: 933: 930: 928: 925: 921: 918: 917: 916: 913: 911: 908: 906: 903: 899: 896: 895: 894: 891: 889: 886: 884: 883:De-extinction 881: 879: 876: 874: 871: 867: 864: 862: 859: 858: 857: 854: 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851:Ampakine 765:24737762 724:39394207 687:24246951 638:23168056 586:25826677 535:20046680 444:See also 402:Glycerol 347:glycerol 291:Threitol 225:; while 215:glycerol 203:hydroxyl 199:alcohols 187:cryonics 155:toxicity 149:Toxicity 78:glycerol 40:freezing 678:4036103 577:4620521 526:2781097 422:Sucrose 358:insulin 345:create 335:glucose 301:polyols 281:Insects 251:embryos 247:oocytes 167:colloid 55:insects 1055:Ethics 1023:Topics 818:Fields 763:  722:  685:  675:  636:  584:  574:  533:  523:  381:Common 362:spring 351:livers 337:, but 297:sugars 249:, and 179:organs 113:kidney 110:rabbit 90:organs 48:Arctic 720:S2CID 604:(PDF) 434: 413:(MPD) 319:frogs 243:sperm 38:from 1190:List 866:Womb 761:PMID 683:PMID 634:PMID 582:PMID 531:PMID 392:DMSO 289:and 213:and 181:for 69:and 61:and 59:fish 50:and 751:doi 747:217 712:doi 673:PMC 665:doi 624:hdl 616:doi 572:PMC 564:doi 521:PMC 513:doi 329:in 299:or 44:ice 1208:: 759:. 745:. 741:. 718:. 708:31 706:. 681:. 671:. 661:68 659:. 655:. 632:. 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Index

Cryoprotectants
biological tissue
freezing
ice
Arctic
Antarctic
insects
fish
amphibians
antifreeze compounds
antifreeze proteins
glycerol
cryobiology
liquid nitrogen
organs
cryogenic
transplantable
xenobiotic
Twenty-First Century Medicine
rabbit
kidney
glass transition temperature
hydrogen bonds
anhydrobiosis
toxicity
formamide
dimethyl sulfoxide
colloid
vitrification
biological

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