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Reducing Frost during Cryoimaging Using a Hygroscopic Ice Frame
[Image: see text] Cryomicroscopy is commonly hampered by frost accumulation, reducing the visual clarity of the specimen. Pulling a vacuum or purging with nitrogen gas can greatly reduce the sample chamber’s humidity, but at cryogenic temperatures, even minute concentrations of water vapor can still...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9730467/ https://www.ncbi.nlm.nih.gov/pubmed/36506191 http://dx.doi.org/10.1021/acsomega.2c03083 |
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author | Lowery, Adam W. Ambi, Ashwin Miller, Lisa M. Boreyko, Jonathan B. |
author_facet | Lowery, Adam W. Ambi, Ashwin Miller, Lisa M. Boreyko, Jonathan B. |
author_sort | Lowery, Adam W. |
collection | PubMed |
description | [Image: see text] Cryomicroscopy is commonly hampered by frost accumulation, reducing the visual clarity of the specimen. Pulling a vacuum or purging with nitrogen gas can greatly reduce the sample chamber’s humidity, but at cryogenic temperatures, even minute concentrations of water vapor can still result in frost deposition. Here, a hygroscopic ice frame was created around the specimen to suppress frost growth during cryomicroscopy. Specifically, fluorescently tagged rat brain vessels were frozen on a silicon nitride window with an ice frame, and the luminescence of the fluorescent tag was improved by a factor of 6 compared to a similar specimen in only a nitrogen purge environment. These findings suggest that the simple implementation of a hygroscopic ice frame surrounding the specimen can substantially improve the visual clarity for cryomicroscopy, beyond that of a vacuum or nitrogen purge system. |
format | Online Article Text |
id | pubmed-9730467 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-97304672022-12-09 Reducing Frost during Cryoimaging Using a Hygroscopic Ice Frame Lowery, Adam W. Ambi, Ashwin Miller, Lisa M. Boreyko, Jonathan B. ACS Omega [Image: see text] Cryomicroscopy is commonly hampered by frost accumulation, reducing the visual clarity of the specimen. Pulling a vacuum or purging with nitrogen gas can greatly reduce the sample chamber’s humidity, but at cryogenic temperatures, even minute concentrations of water vapor can still result in frost deposition. Here, a hygroscopic ice frame was created around the specimen to suppress frost growth during cryomicroscopy. Specifically, fluorescently tagged rat brain vessels were frozen on a silicon nitride window with an ice frame, and the luminescence of the fluorescent tag was improved by a factor of 6 compared to a similar specimen in only a nitrogen purge environment. These findings suggest that the simple implementation of a hygroscopic ice frame surrounding the specimen can substantially improve the visual clarity for cryomicroscopy, beyond that of a vacuum or nitrogen purge system. American Chemical Society 2022-11-22 /pmc/articles/PMC9730467/ /pubmed/36506191 http://dx.doi.org/10.1021/acsomega.2c03083 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Lowery, Adam W. Ambi, Ashwin Miller, Lisa M. Boreyko, Jonathan B. Reducing Frost during Cryoimaging Using a Hygroscopic Ice Frame |
title | Reducing Frost
during Cryoimaging Using a Hygroscopic
Ice Frame |
title_full | Reducing Frost
during Cryoimaging Using a Hygroscopic
Ice Frame |
title_fullStr | Reducing Frost
during Cryoimaging Using a Hygroscopic
Ice Frame |
title_full_unstemmed | Reducing Frost
during Cryoimaging Using a Hygroscopic
Ice Frame |
title_short | Reducing Frost
during Cryoimaging Using a Hygroscopic
Ice Frame |
title_sort | reducing frost
during cryoimaging using a hygroscopic
ice frame |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9730467/ https://www.ncbi.nlm.nih.gov/pubmed/36506191 http://dx.doi.org/10.1021/acsomega.2c03083 |
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