Molecular Structure and Interactions of Lipids in the Outer Membrane of Living Cells Based on Surface-Enhanced Raman Scattering and Liposome Models.
To access publisher's full text version of this article click on the hyperlink below The distribution and interaction of lipids determine the structure and function of the cellular membrane. Surface-enhanced Raman scattering (SERS) is used for selective molecular probing of the cell membrane of...
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ftlandspitaliuni:oai:www.hirsla.lsh.is:2336/621966 2023-05-15T16:51:25+02:00 Molecular Structure and Interactions of Lipids in the Outer Membrane of Living Cells Based on Surface-Enhanced Raman Scattering and Liposome Models. Živanović, Vesna Milewska, Adrianna Leosson, Kristjan Kneipp, Janina 1Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, Berlin 12489, Germany. 2Innovation Center Iceland, Árleynir 2-8, Reykjavík 112, Iceland. 3The Blood Bank, Landspitali University Hospital, Snorrabraut 60, Reykjavík 105, Iceland. 4School of Engineering and Natural Sciences, University of Iceland, Sæmundargötu 2, Reykjavík 101, Iceland. 5Science Institute, University of Iceland, Dunhaga 3, Reykjavík 107, Iceland. 2021-11 http://hdl.handle.net/2336/621966 https://doi.org/10.1021/acs.analchem.1c00964 en eng American Chemical Society https://pubs.acs.org/doi/10.1021/acs.analchem.1c00964# Živanović V, Milewska A, Leosson K, Kneipp J. Molecular Structure and Interactions of Lipids in the Outer Membrane of Living Cells Based on Surface-Enhanced Raman Scattering and Liposome Models. Anal Chem. 2021;93(29):10106-10113. doi:10.1021/acs.analchem.1c00964 34264630 doi:10.1021/acs.analchem.1c00964 http://hdl.handle.net/2336/621966 1520-6882 Analytical chemistry Closed - Lokað Analytical chemistry 93 29 10106 10113 United States Molecular Structure Liposomes Article Other 2021 ftlandspitaliuni https://doi.org/10.1021/acs.analchem.1c00964 2022-05-29T08:22:41Z To access publisher's full text version of this article click on the hyperlink below The distribution and interaction of lipids determine the structure and function of the cellular membrane. Surface-enhanced Raman scattering (SERS) is used for selective molecular probing of the cell membrane of living fibroblast cells grown adherently on gold nanoisland substrates across their whole contact areas with the substrate, enabling mapping of the membrane's composition and interaction. From the SERS data, the localization and distribution of different lipids and their interactions, together with proteins in the outer cell membrane, are inferred. Interpretation of the spectra is mainly supported by comparison with the spectra of model liposomes composed of phosphatidylcholine, sphingomyelin, and cholesterol obtained on the same gold substrate. The interaction of the liposomes with the substrate differs from that with gold nanoparticles. The SERS maps indicate colocalization of ordered lipid domains with cholesterol in the living cells. They support the observation of ordered membrane regions of micrometer dimensions in the outer leaflet of the cell membrane that are rich in sphingomyelin. Moreover, the spectra of the living cells contain bands from the groups of the lipid heads, phosphate, choline, and ethanolamine, combined with those from membrane proteins, as indicated by signals assigned to prenyl attachment. Elucidating the composition and structure of lipid membranes in living cells can find application in many fields of research. European Research Council (ERC) European Commission Icelandic Research Fund University of Iceland Research Fund Article in Journal/Newspaper Iceland Hirsla - Landspítali University Hospital research archive Analytical Chemistry 93 29 10106 10113 |
institution |
Open Polar |
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Hirsla - Landspítali University Hospital research archive |
op_collection_id |
ftlandspitaliuni |
language |
English |
topic |
Molecular Structure Liposomes |
spellingShingle |
Molecular Structure Liposomes Živanović, Vesna Milewska, Adrianna Leosson, Kristjan Kneipp, Janina Molecular Structure and Interactions of Lipids in the Outer Membrane of Living Cells Based on Surface-Enhanced Raman Scattering and Liposome Models. |
topic_facet |
Molecular Structure Liposomes |
description |
To access publisher's full text version of this article click on the hyperlink below The distribution and interaction of lipids determine the structure and function of the cellular membrane. Surface-enhanced Raman scattering (SERS) is used for selective molecular probing of the cell membrane of living fibroblast cells grown adherently on gold nanoisland substrates across their whole contact areas with the substrate, enabling mapping of the membrane's composition and interaction. From the SERS data, the localization and distribution of different lipids and their interactions, together with proteins in the outer cell membrane, are inferred. Interpretation of the spectra is mainly supported by comparison with the spectra of model liposomes composed of phosphatidylcholine, sphingomyelin, and cholesterol obtained on the same gold substrate. The interaction of the liposomes with the substrate differs from that with gold nanoparticles. The SERS maps indicate colocalization of ordered lipid domains with cholesterol in the living cells. They support the observation of ordered membrane regions of micrometer dimensions in the outer leaflet of the cell membrane that are rich in sphingomyelin. Moreover, the spectra of the living cells contain bands from the groups of the lipid heads, phosphate, choline, and ethanolamine, combined with those from membrane proteins, as indicated by signals assigned to prenyl attachment. Elucidating the composition and structure of lipid membranes in living cells can find application in many fields of research. European Research Council (ERC) European Commission Icelandic Research Fund University of Iceland Research Fund |
author2 |
1Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, Berlin 12489, Germany. 2Innovation Center Iceland, Árleynir 2-8, Reykjavík 112, Iceland. 3The Blood Bank, Landspitali University Hospital, Snorrabraut 60, Reykjavík 105, Iceland. 4School of Engineering and Natural Sciences, University of Iceland, Sæmundargötu 2, Reykjavík 101, Iceland. 5Science Institute, University of Iceland, Dunhaga 3, Reykjavík 107, Iceland. |
format |
Article in Journal/Newspaper |
author |
Živanović, Vesna Milewska, Adrianna Leosson, Kristjan Kneipp, Janina |
author_facet |
Živanović, Vesna Milewska, Adrianna Leosson, Kristjan Kneipp, Janina |
author_sort |
Živanović, Vesna |
title |
Molecular Structure and Interactions of Lipids in the Outer Membrane of Living Cells Based on Surface-Enhanced Raman Scattering and Liposome Models. |
title_short |
Molecular Structure and Interactions of Lipids in the Outer Membrane of Living Cells Based on Surface-Enhanced Raman Scattering and Liposome Models. |
title_full |
Molecular Structure and Interactions of Lipids in the Outer Membrane of Living Cells Based on Surface-Enhanced Raman Scattering and Liposome Models. |
title_fullStr |
Molecular Structure and Interactions of Lipids in the Outer Membrane of Living Cells Based on Surface-Enhanced Raman Scattering and Liposome Models. |
title_full_unstemmed |
Molecular Structure and Interactions of Lipids in the Outer Membrane of Living Cells Based on Surface-Enhanced Raman Scattering and Liposome Models. |
title_sort |
molecular structure and interactions of lipids in the outer membrane of living cells based on surface-enhanced raman scattering and liposome models. |
publisher |
American Chemical Society |
publishDate |
2021 |
url |
http://hdl.handle.net/2336/621966 https://doi.org/10.1021/acs.analchem.1c00964 |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Analytical chemistry 93 29 10106 10113 United States |
op_relation |
https://pubs.acs.org/doi/10.1021/acs.analchem.1c00964# Živanović V, Milewska A, Leosson K, Kneipp J. Molecular Structure and Interactions of Lipids in the Outer Membrane of Living Cells Based on Surface-Enhanced Raman Scattering and Liposome Models. Anal Chem. 2021;93(29):10106-10113. doi:10.1021/acs.analchem.1c00964 34264630 doi:10.1021/acs.analchem.1c00964 http://hdl.handle.net/2336/621966 1520-6882 Analytical chemistry |
op_rights |
Closed - Lokað |
op_doi |
https://doi.org/10.1021/acs.analchem.1c00964 |
container_title |
Analytical Chemistry |
container_volume |
93 |
container_issue |
29 |
container_start_page |
10106 |
op_container_end_page |
10113 |
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1766041535812468736 |