{"title":"氢键对低温保护剂溶液状态图的影响。","authors":"O. I. Osetsky","doi":"10.54680/fr24410110712","DOIUrl":null,"url":null,"abstract":"BACKGROUND\nTransformation of state diagrams of cryoprotectant solutions under the influence of weak intramolecular interactions was considered.\n\n\nMATERIALS AND METHODS\nPhase states of aqueous glycerol and DMSO solutions within temperature range +25 to -150 degree С were studied using method of volumetric scanning tensodilatometry. Temperatures below which hydrogen bonds significantly affect crystallization-melting kinetics of such solutions were determined.\n\n\nRESULTS\nPrinciples for plotting of state diagram for binary solutions with weak intermolecular interaction of the components were set up. The study demonstrates that in such solutions formation of clusters based on ice microcrystals and cryoprotectant occurs. Based on the obtained results, state diagrams for glycerol and DMSO aqueous solutions were plotted. These diagrams include area of cluster phase existence and differ fundamentally from those describing eutectic crystallization.\n\n\nCONCLUSION\nNanostructures occurring in cryoprotectant solutions during their cooling were analyzed. Difference between these structures and classical solid phase eutectics were demonstrated. Doi.org/10.54680/fr24410110712.","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":"60 3","pages":"231-239"},"PeriodicalIF":16.4000,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Influence of hydrogen bonds on state diagrams of cryoprotectant solutions.\",\"authors\":\"O. I. Osetsky\",\"doi\":\"10.54680/fr24410110712\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"BACKGROUND\\nTransformation of state diagrams of cryoprotectant solutions under the influence of weak intramolecular interactions was considered.\\n\\n\\nMATERIALS AND METHODS\\nPhase states of aqueous glycerol and DMSO solutions within temperature range +25 to -150 degree С were studied using method of volumetric scanning tensodilatometry. Temperatures below which hydrogen bonds significantly affect crystallization-melting kinetics of such solutions were determined.\\n\\n\\nRESULTS\\nPrinciples for plotting of state diagram for binary solutions with weak intermolecular interaction of the components were set up. The study demonstrates that in such solutions formation of clusters based on ice microcrystals and cryoprotectant occurs. Based on the obtained results, state diagrams for glycerol and DMSO aqueous solutions were plotted. These diagrams include area of cluster phase existence and differ fundamentally from those describing eutectic crystallization.\\n\\n\\nCONCLUSION\\nNanostructures occurring in cryoprotectant solutions during their cooling were analyzed. Difference between these structures and classical solid phase eutectics were demonstrated. Doi.org/10.54680/fr24410110712.\",\"PeriodicalId\":1,\"journal\":{\"name\":\"Accounts of Chemical Research\",\"volume\":\"60 3\",\"pages\":\"231-239\"},\"PeriodicalIF\":16.4000,\"publicationDate\":\"2024-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Accounts of Chemical Research\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.54680/fr24410110712\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.54680/fr24410110712","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Influence of hydrogen bonds on state diagrams of cryoprotectant solutions.
BACKGROUND
Transformation of state diagrams of cryoprotectant solutions under the influence of weak intramolecular interactions was considered.
MATERIALS AND METHODS
Phase states of aqueous glycerol and DMSO solutions within temperature range +25 to -150 degree С were studied using method of volumetric scanning tensodilatometry. Temperatures below which hydrogen bonds significantly affect crystallization-melting kinetics of such solutions were determined.
RESULTS
Principles for plotting of state diagram for binary solutions with weak intermolecular interaction of the components were set up. The study demonstrates that in such solutions formation of clusters based on ice microcrystals and cryoprotectant occurs. Based on the obtained results, state diagrams for glycerol and DMSO aqueous solutions were plotted. These diagrams include area of cluster phase existence and differ fundamentally from those describing eutectic crystallization.
CONCLUSION
Nanostructures occurring in cryoprotectant solutions during their cooling were analyzed. Difference between these structures and classical solid phase eutectics were demonstrated. Doi.org/10.54680/fr24410110712.
期刊介绍:
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.