Direct visualization of cooperative adsorption of a string-like molecule onto a solid

Natural systems, composite materials, and thin-film devices adsorb macromolecules in different phases onto their surfaces. In general, polymer chains form interfacial layers where their aggregation states and thermal molecular motions differ from the bulk. Here, we visualize well-defined double-stra...

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Autores principales: Morimitsu, Yuma, Matsuno, Hisao, Oda, Yukari, Yamamoto, Satoru, Tanaka, Keiji
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9555780/
https://www.ncbi.nlm.nih.gov/pubmed/36223469
http://dx.doi.org/10.1126/sciadv.abn6349
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author Morimitsu, Yuma
Matsuno, Hisao
Oda, Yukari
Yamamoto, Satoru
Tanaka, Keiji
author_facet Morimitsu, Yuma
Matsuno, Hisao
Oda, Yukari
Yamamoto, Satoru
Tanaka, Keiji
author_sort Morimitsu, Yuma
collection PubMed
description Natural systems, composite materials, and thin-film devices adsorb macromolecules in different phases onto their surfaces. In general, polymer chains form interfacial layers where their aggregation states and thermal molecular motions differ from the bulk. Here, we visualize well-defined double-stranded DNAs (dsDNAs) using atomic force microscopy and molecular dynamics simulations to clarify the adsorption mechanism of polymer chains onto solid surfaces. Initially, short and long dsDNAs are individually and cooperatively adsorbed, respectively. Cooperative adsorption involves intertwining of multiple chains. The dependence of adsorption on the chain affects the formation of the interfacial layer, realizing different mechanical properties of DNA/filler bulk composites. These findings will contribute to the development of light and durable polymer composites and films for various industrial, biomedical, and environmental applications.
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spelling pubmed-95557802022-10-26 Direct visualization of cooperative adsorption of a string-like molecule onto a solid Morimitsu, Yuma Matsuno, Hisao Oda, Yukari Yamamoto, Satoru Tanaka, Keiji Sci Adv Physical and Materials Sciences Natural systems, composite materials, and thin-film devices adsorb macromolecules in different phases onto their surfaces. In general, polymer chains form interfacial layers where their aggregation states and thermal molecular motions differ from the bulk. Here, we visualize well-defined double-stranded DNAs (dsDNAs) using atomic force microscopy and molecular dynamics simulations to clarify the adsorption mechanism of polymer chains onto solid surfaces. Initially, short and long dsDNAs are individually and cooperatively adsorbed, respectively. Cooperative adsorption involves intertwining of multiple chains. The dependence of adsorption on the chain affects the formation of the interfacial layer, realizing different mechanical properties of DNA/filler bulk composites. These findings will contribute to the development of light and durable polymer composites and films for various industrial, biomedical, and environmental applications. American Association for the Advancement of Science 2022-10-12 /pmc/articles/PMC9555780/ /pubmed/36223469 http://dx.doi.org/10.1126/sciadv.abn6349 Text en Copyright © 2022 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). https://creativecommons.org/licenses/by-nc/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (https://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.
spellingShingle Physical and Materials Sciences
Morimitsu, Yuma
Matsuno, Hisao
Oda, Yukari
Yamamoto, Satoru
Tanaka, Keiji
Direct visualization of cooperative adsorption of a string-like molecule onto a solid
title Direct visualization of cooperative adsorption of a string-like molecule onto a solid
title_full Direct visualization of cooperative adsorption of a string-like molecule onto a solid
title_fullStr Direct visualization of cooperative adsorption of a string-like molecule onto a solid
title_full_unstemmed Direct visualization of cooperative adsorption of a string-like molecule onto a solid
title_short Direct visualization of cooperative adsorption of a string-like molecule onto a solid
title_sort direct visualization of cooperative adsorption of a string-like molecule onto a solid
topic Physical and Materials Sciences
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9555780/
https://www.ncbi.nlm.nih.gov/pubmed/36223469
http://dx.doi.org/10.1126/sciadv.abn6349
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