Changes in the adhesive properties of spider aggregate glue during the evolution of cobwebs.

Scientific Reports
Vasav SahniAli Dhinojwala

Abstract

We compare the prey capture glues produced by orb-weaving spiders (viscid glue) and their evolutionary descendents, the cobweb-weaving spiders (gumfoot glue). These glues are produced in homologous glands but exhibit contrasting structure, properties and response to changing humidity. Individual glue droplet stretching measurements indicate that the gumfoot glue behaves like a viscoelastic liquid in contrast to the viscid glue, which behaves like a viscoelastic solid. Moreover, the gumfoot glue is largely humidity-resistant - elasticity and adhesion are constant across variation in humidity and there is weak volume-dependence. Viscid glue, however, is highly humidity-sensitive. The glue expands an order of magnitude and demonstrates a monotonous reduction in elasticity under increased humidity, while glue adhesion optimizes at intermediate levels of humidity. We suggest that observed differences are due to different 'tackifiers' used in these systems. These results shall inspire future efforts in fabricating stimuli-resistant and stimuli-sensitive materials.

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Citations

Feb 14, 2014·PloS One·Sean J BlamiresI-Min Tso
Oct 30, 2015·ACS Nano·Gaurav AmarpuriAli Dhinojwala
Mar 1, 2016·Journal of Proteome Research·José Roberto Aparecido Dos Santos-PintoMario Sergio Palma
Sep 1, 2015·Biomacromolecules·Dharamdeep JainAli Dhinojwala
Aug 11, 2016·Scientific Reports·Alejandro Soler, Ramón Zaera
Oct 23, 2015·Journal of the Royal Society, Interface·Ching-Shuen WangRussell J Stewart
Feb 16, 2016·Scientific Reports·Matthew A CollinCheryl Y Hayashi
Jan 29, 2013·Nature Materials·Kristie J KoskiJeffery L Yarger
Dec 25, 2016·The Journal of Experimental Biology·Sean J BlamiresMichael M Kasumovic
Mar 31, 2017·The Journal of Experimental Biology·Brent D OpellMary L Hendricks
Jun 16, 2017·The Journal of Experimental Biology·Jonas O WolffStanislav N Gorb
Mar 7, 2019·Die Naturwissenschaften·Sean D KellyLindsey L Owens
Mar 13, 2015·Scientific Reports·Gaurav AmarpuriAli Dhinojwala
May 16, 2015·Nature Communications·Zhao QinMarkus J Buehler
Feb 19, 2019·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Yue ZhaoTetsuo Sakamoto
Jul 4, 2019·Molecular Omics·José Roberto Aparecido Dos Santos-PintoGert Lübec
Jul 11, 2014·Journal of the Royal Society, Interface·Avery MeyerSteven W Cranford
May 12, 2017·Journal of the Royal Society, Interface·Gaurav AmarpuriAli Dhinojwala
Jan 24, 2018·The Journal of Experimental Biology·Sean J BlamiresMichael M Kasumovic
Jun 27, 2019·Scientific Reports·Peter MichalikMartín J Ramírez
Mar 28, 2018·The Journal of Experimental Biology·Brent D OpellTodd A Blackledge
Jan 12, 2021·Environmental Chemistry Letters·Clémence BelbéochFabien Salaün
Jun 6, 2013·The Journal of Experimental Biology·Chao-Chia WuI-Min Tso
Jun 22, 2013·The Journal of Experimental Biology·Cecilia Boutry, Todd A Blackledge
Sep 4, 2015·The Journal of Experimental Biology·Sarah D StellwagenMary E Clouse
May 5, 2021·Integrative and Comparative Biology·Sarah D Stellwagen, Mercedes Burns
Jun 17, 2020·Journal of Proteome Research·Franciele Grego EstevesMario Sergio Palma

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Methods Mentioned

BETA
the force measurements
force relaxation measurements
pull-off
force measurements

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