Organic salt composition of pressure sensitive adhesives produced by spiders

Wolff, JO; Cherry, BR; Yarger, JL; Adler, L; Thomas, DS; Hook, JM; Blamires, SJ

Organic salt composition of pressure sensitive adhesives produced by spiders

Wolff, JO Cherry, BR Yarger, JL Adler, L Thomas, DS Hook, JM Blamires, SJ

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Publisher:: FRONTIERS MEDIA SA
Publication Type:: Journal Article
Citation:: FRONTIERS IN ECOLOGY AND EVOLUTION, 2023, 11
Issue Date:: 2023-04-24

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Field	Value	Language
dc.contributor.author	Wolff, JO
dc.contributor.author	Cherry, BR
dc.contributor.author	Yarger, JL
dc.contributor.author	Adler, L
dc.contributor.author	Thomas, DS
dc.contributor.author	Hook, JM
dc.contributor.author	Blamires, SJ
dc.date.accessioned	2024-01-16T02:55:03Z
dc.date.available	2024-01-16T02:55:03Z
dc.date.issued	2023-04-24
dc.identifier.citation	FRONTIERS IN ECOLOGY AND EVOLUTION, 2023, 11
dc.identifier.issn	2296-701X
dc.identifier.issn	2296-701X
dc.identifier.uri	http://hdl.handle.net/10453/174552
dc.description.abstract	<jats:p>Natural glues offer great potential as bio-inspired solutions to problems associated with the performance of synthetic adhesives. Spider viscous glues are elastic pressure sensitive adhesives (PSAs) that physically adhere to surfaces on contact across a range of environmental conditions. Extracting useful components from these secretions remains a challenge that can be met by the comparative analyses of functional analogues. Here we used <jats:sup>1</jats:sup>H NMR spectroscopy and mass spectrometry to ascertain the organic salt compositions of the PSAs of four different species of Australian spiders belonging to two lineages that independently acquired aqueous gluey secretions: the St Andrew’s cross (<jats:italic>Argiope keyserlingi</jats:italic>), the redback (<jats:italic>Latrodectus hasselti</jats:italic>), the false widow (<jats:italic>Steatoda grossa</jats:italic>), and the daddy long-legs spider (<jats:italic>Pholcus phalangiodes</jats:italic>). The PSAs from each of these spiders contained similar organic salts, albeit in variable concentrations. The adhesives of the false widow and daddy long-legs spider had mixtures of only a few components, of which betaine predominated, while the PSAs of the other spiders predominantly contained small organic acids such as GABA/GABA-amide, isethionate, and choline salts. Our results suggest that the PSA composition of spiders is likely to be influenced more by environmental factors than evolutionary history and are guided by common principles. Our findings could be valuable for facilitating the design of more sustainable synthetic glues.</jats:p>
dc.language	English
dc.publisher	FRONTIERS MEDIA SA
dc.relation.ispartof	FRONTIERS IN ECOLOGY AND EVOLUTION
dc.relation.isbasedon	10.3389/fevo.2023.1123614
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0602 Ecology, 0603 Evolutionary Biology
dc.subject.classification	3103 Ecology
dc.subject.classification	3104 Evolutionary biology
dc.subject.classification	4102 Ecological applications
dc.title	Organic salt composition of pressure sensitive adhesives produced by spiders
dc.type	Journal Article
utslib.citation.volume	11
utslib.for	0602 Ecology
utslib.for	0603 Evolutionary Biology
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
utslib.copyright.status	open_access	*
dc.date.updated	2024-01-16T02:55:01Z
pubs.publication-status	Published
pubs.volume	11

Abstract:

Natural glues offer great potential as bio-inspired solutions to problems associated with the performance of synthetic adhesives. Spider viscous glues are elastic pressure sensitive adhesives (PSAs) that physically adhere to surfaces on contact across a range of environmental conditions. Extracting useful components from these secretions remains a challenge that can be met by the comparative analyses of functional analogues. Here we used 1H NMR spectroscopy and mass spectrometry to ascertain the organic salt compositions of the PSAs of four different species of Australian spiders belonging to two lineages that independently acquired aqueous gluey secretions: the St Andrew’s cross (Argiope keyserlingi), the redback (Latrodectus hasselti), the false widow (Steatoda grossa), and the daddy long-legs spider (Pholcus phalangiodes). The PSAs from each of these spiders contained similar organic salts, albeit in variable concentrations. The adhesives of the false widow and daddy long-legs spider had mixtures of only a few components, of which betaine predominated, while the PSAs of the other spiders predominantly contained small organic acids such as GABA/GABA-amide, isethionate, and choline salts. Our results suggest that the PSA composition of spiders is likely to be influenced more by environmental factors than evolutionary history and are guided by common principles. Our findings could be valuable for facilitating the design of more sustainable synthetic glues.

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http://hdl.handle.net/10453/174552