Microscopic and infrared spectroscopic comparison of the underwater adhesives produced by germlings of the brown seaweed species Durvillaea antarcticaand Hormosira banksii
Adhesives from marine organisms are often the source of inspiration for the development of glues able to create durable bonds in wet environments. In this work, we investigated the adhesive secretions produced by germlings of two large seaweed species from the South Pacific, Durvillaea antarctica ,...
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crroyalsociety:10.1098/rsif.2015.1083 2024-09-15T17:43:30+00:00 Microscopic and infrared spectroscopic comparison of the underwater adhesives produced by germlings of the brown seaweed species Durvillaea antarcticaand Hormosira banksii Dimartino, Simone Savory, David M. Fraser-Miller, Sara J. Gordon, Keith C. McQuillan, A. James University of Otago Biomolecular Interaxtion Centre 2016 http://dx.doi.org/10.1098/rsif.2015.1083 https://royalsocietypublishing.org/doi/pdf/10.1098/rsif.2015.1083 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsif.2015.1083 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Journal of The Royal Society Interface volume 13, issue 117, page 20151083 ISSN 1742-5689 1742-5662 journal-article 2016 crroyalsociety https://doi.org/10.1098/rsif.2015.1083 2024-07-29T04:23:21Z Adhesives from marine organisms are often the source of inspiration for the development of glues able to create durable bonds in wet environments. In this work, we investigated the adhesive secretions produced by germlings of two large seaweed species from the South Pacific, Durvillaea antarctica , also named ‘the strongest kelp in the word’, and its close relative Hormosira banksii . The comparative analysis was based on optical and scanning electron microscopy imaging as well as Fourier transform infrared (FTIR) spectroscopy and principal component analysis (PCA). For both species, the egg surface presents peripheral vesicles which are released soon after fertilization to discharge a primary adhesive. This is characterized by peaks representative of carbohydrate molecules. A secondary protein-based adhesive is then secreted in the early developmental stages of the germlings. Energy dispersive X-ray, FTIR and PCA indicate that D. antarctica secretions also contain sulfated moieties, and become cross-linked with time, both conferring strong adhesive and cohesive properties. On the other hand, H. banksii secretions are complemented by the putative adhesive phlorotannins, and are characterized by a simple mechanism in which all constituents are released with the same rate and with no apparent cross-linking. It is also noted that the release of adhesive materials appears to be faster and more copious in D. antarctica than in H. banksii . Overall, this study highlights that both quantity and quality of the adhesives matter in explaining the superior attachment ability of D. antarctica . Article in Journal/Newspaper Antarc* Antarctica The Royal Society Journal of The Royal Society Interface 13 117 20151083 |
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The Royal Society |
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crroyalsociety |
language |
English |
description |
Adhesives from marine organisms are often the source of inspiration for the development of glues able to create durable bonds in wet environments. In this work, we investigated the adhesive secretions produced by germlings of two large seaweed species from the South Pacific, Durvillaea antarctica , also named ‘the strongest kelp in the word’, and its close relative Hormosira banksii . The comparative analysis was based on optical and scanning electron microscopy imaging as well as Fourier transform infrared (FTIR) spectroscopy and principal component analysis (PCA). For both species, the egg surface presents peripheral vesicles which are released soon after fertilization to discharge a primary adhesive. This is characterized by peaks representative of carbohydrate molecules. A secondary protein-based adhesive is then secreted in the early developmental stages of the germlings. Energy dispersive X-ray, FTIR and PCA indicate that D. antarctica secretions also contain sulfated moieties, and become cross-linked with time, both conferring strong adhesive and cohesive properties. On the other hand, H. banksii secretions are complemented by the putative adhesive phlorotannins, and are characterized by a simple mechanism in which all constituents are released with the same rate and with no apparent cross-linking. It is also noted that the release of adhesive materials appears to be faster and more copious in D. antarctica than in H. banksii . Overall, this study highlights that both quantity and quality of the adhesives matter in explaining the superior attachment ability of D. antarctica . |
author2 |
University of Otago Biomolecular Interaxtion Centre |
format |
Article in Journal/Newspaper |
author |
Dimartino, Simone Savory, David M. Fraser-Miller, Sara J. Gordon, Keith C. McQuillan, A. James |
spellingShingle |
Dimartino, Simone Savory, David M. Fraser-Miller, Sara J. Gordon, Keith C. McQuillan, A. James Microscopic and infrared spectroscopic comparison of the underwater adhesives produced by germlings of the brown seaweed species Durvillaea antarcticaand Hormosira banksii |
author_facet |
Dimartino, Simone Savory, David M. Fraser-Miller, Sara J. Gordon, Keith C. McQuillan, A. James |
author_sort |
Dimartino, Simone |
title |
Microscopic and infrared spectroscopic comparison of the underwater adhesives produced by germlings of the brown seaweed species Durvillaea antarcticaand Hormosira banksii |
title_short |
Microscopic and infrared spectroscopic comparison of the underwater adhesives produced by germlings of the brown seaweed species Durvillaea antarcticaand Hormosira banksii |
title_full |
Microscopic and infrared spectroscopic comparison of the underwater adhesives produced by germlings of the brown seaweed species Durvillaea antarcticaand Hormosira banksii |
title_fullStr |
Microscopic and infrared spectroscopic comparison of the underwater adhesives produced by germlings of the brown seaweed species Durvillaea antarcticaand Hormosira banksii |
title_full_unstemmed |
Microscopic and infrared spectroscopic comparison of the underwater adhesives produced by germlings of the brown seaweed species Durvillaea antarcticaand Hormosira banksii |
title_sort |
microscopic and infrared spectroscopic comparison of the underwater adhesives produced by germlings of the brown seaweed species durvillaea antarcticaand hormosira banksii |
publisher |
The Royal Society |
publishDate |
2016 |
url |
http://dx.doi.org/10.1098/rsif.2015.1083 https://royalsocietypublishing.org/doi/pdf/10.1098/rsif.2015.1083 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsif.2015.1083 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Journal of The Royal Society Interface volume 13, issue 117, page 20151083 ISSN 1742-5689 1742-5662 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rsif.2015.1083 |
container_title |
Journal of The Royal Society Interface |
container_volume |
13 |
container_issue |
117 |
container_start_page |
20151083 |
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1810490515726008320 |