The Modification of Polyvinyl Alcohol for Ice Nucleation Based upon the Structures of Antifreeze Glycoproteins Found in Antarctic Fish
Various alternative compounds have been investigated to prevent icing, one of which includes poly(vinyl) alcohol (PVA), which has shown promising anti-freeze effects. However, determining the optimal structures and formulations of PVA for anti-icing applications has remained a challenge. Building up...
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Online Access: | https://doi.org/10.3390/biophysica2040037 |
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ftmdpi:oai:mdpi.com:/2673-4125/2/4/37/ 2023-08-20T04:01:54+02:00 The Modification of Polyvinyl Alcohol for Ice Nucleation Based upon the Structures of Antifreeze Glycoproteins Found in Antarctic Fish Monika Bleszynski 2022-11-03 application/pdf https://doi.org/10.3390/biophysica2040037 EN eng Multidisciplinary Digital Publishing Institute https://dx.doi.org/10.3390/biophysica2040037 https://creativecommons.org/licenses/by/4.0/ Biophysica; Volume 2; Issue 4; Pages: 417-427 polyvinyl alcohol ice nucleation hydroxyl group separation distance antifreeze glycoproteins Text 2022 ftmdpi https://doi.org/10.3390/biophysica2040037 2023-08-01T07:10:34Z Various alternative compounds have been investigated to prevent icing, one of which includes poly(vinyl) alcohol (PVA), which has shown promising anti-freeze effects. However, determining the optimal structures and formulations of PVA for anti-icing applications has remained a challenge. Building upon our previous work, which used molecular dynamics simulations to assess the effects of hydroxyl group separation distance on ice nucleation, in this work, PVA was modified based upon the structures of antifreeze glycoproteins (AFGPs) found in Antarctic fish, and examined as a potential antifreeze compound. Four different PVA samples with different degrees of hydrolysis were fabricated and subsequently examined for their effects on ice crystallization. The results showed that the modified PVA samples with degrees of hydrolysis of 76% and 66% had an effect on ice crystallization, delaying ice crystallization by an average of approximately 20 min, and even preventing ice crystallization altogether in a small portion of the sample. Meanwhile, other samples with degrees of hydrolysis of 100% and 34% either showed no effect on ice crystallization, shortened the ice crystallization time, and appeared to promote ice nucleation. Text Antarc* Antarctic MDPI Open Access Publishing Antarctic Biophysica 2 4 417 427 |
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Open Polar |
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MDPI Open Access Publishing |
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ftmdpi |
language |
English |
topic |
polyvinyl alcohol ice nucleation hydroxyl group separation distance antifreeze glycoproteins |
spellingShingle |
polyvinyl alcohol ice nucleation hydroxyl group separation distance antifreeze glycoproteins Monika Bleszynski The Modification of Polyvinyl Alcohol for Ice Nucleation Based upon the Structures of Antifreeze Glycoproteins Found in Antarctic Fish |
topic_facet |
polyvinyl alcohol ice nucleation hydroxyl group separation distance antifreeze glycoproteins |
description |
Various alternative compounds have been investigated to prevent icing, one of which includes poly(vinyl) alcohol (PVA), which has shown promising anti-freeze effects. However, determining the optimal structures and formulations of PVA for anti-icing applications has remained a challenge. Building upon our previous work, which used molecular dynamics simulations to assess the effects of hydroxyl group separation distance on ice nucleation, in this work, PVA was modified based upon the structures of antifreeze glycoproteins (AFGPs) found in Antarctic fish, and examined as a potential antifreeze compound. Four different PVA samples with different degrees of hydrolysis were fabricated and subsequently examined for their effects on ice crystallization. The results showed that the modified PVA samples with degrees of hydrolysis of 76% and 66% had an effect on ice crystallization, delaying ice crystallization by an average of approximately 20 min, and even preventing ice crystallization altogether in a small portion of the sample. Meanwhile, other samples with degrees of hydrolysis of 100% and 34% either showed no effect on ice crystallization, shortened the ice crystallization time, and appeared to promote ice nucleation. |
format |
Text |
author |
Monika Bleszynski |
author_facet |
Monika Bleszynski |
author_sort |
Monika Bleszynski |
title |
The Modification of Polyvinyl Alcohol for Ice Nucleation Based upon the Structures of Antifreeze Glycoproteins Found in Antarctic Fish |
title_short |
The Modification of Polyvinyl Alcohol for Ice Nucleation Based upon the Structures of Antifreeze Glycoproteins Found in Antarctic Fish |
title_full |
The Modification of Polyvinyl Alcohol for Ice Nucleation Based upon the Structures of Antifreeze Glycoproteins Found in Antarctic Fish |
title_fullStr |
The Modification of Polyvinyl Alcohol for Ice Nucleation Based upon the Structures of Antifreeze Glycoproteins Found in Antarctic Fish |
title_full_unstemmed |
The Modification of Polyvinyl Alcohol for Ice Nucleation Based upon the Structures of Antifreeze Glycoproteins Found in Antarctic Fish |
title_sort |
modification of polyvinyl alcohol for ice nucleation based upon the structures of antifreeze glycoproteins found in antarctic fish |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2022 |
url |
https://doi.org/10.3390/biophysica2040037 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Biophysica; Volume 2; Issue 4; Pages: 417-427 |
op_relation |
https://dx.doi.org/10.3390/biophysica2040037 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/biophysica2040037 |
container_title |
Biophysica |
container_volume |
2 |
container_issue |
4 |
container_start_page |
417 |
op_container_end_page |
427 |
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1774712282911080448 |