Robustness of antiadhesion between nanofibers and surfaces covered with nanoripples of varying spatial period
Since nanofibers have a high surface-to-volume ratio, van der Waals forces render them attracted to virtually any surface. The high ratio provides significant advantages for applications in drug delivery, wound healing, tissue regeneration, and filtration. Cribellate spiders integrate thousands of n...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-06-01
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| Series: | Frontiers in Ecology and Evolution |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fevo.2023.1149051/full |
| _version_ | 1797800398016217088 |
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| author | Gerda Buchberger Gerda Buchberger Marco Meyer Cristina Plamadeala Margret Weissbach Günter Hesser Werner Baumgartner Johannes Heitz Anna-Christin Joel |
| author_facet | Gerda Buchberger Gerda Buchberger Marco Meyer Cristina Plamadeala Margret Weissbach Günter Hesser Werner Baumgartner Johannes Heitz Anna-Christin Joel |
| author_sort | Gerda Buchberger |
| collection | DOAJ |
| description | Since nanofibers have a high surface-to-volume ratio, van der Waals forces render them attracted to virtually any surface. The high ratio provides significant advantages for applications in drug delivery, wound healing, tissue regeneration, and filtration. Cribellate spiders integrate thousands of nanofibers into their capture threads as an adhesive to immobilize their prey. These spiders have antiadhesive nanoripples on the calamistrum, a comb-like structure on their hindmost legs, and are thus an ideal model for investigating how nanofiber adhesion can be reduced. We found that these nanoripples had similar spacing in the cribellate species Uloborus plumipes, Amaurobius similis, and Menneus superciliosus, independent of phylogenetic relation and size. Ripple spacing on other body parts (i.e., cuticle, claws, and spinnerets), however, was less homogeneous. To investigate whether a specific distance between the ripples determines antiadhesion, we fabricated nanorippled foils by nanosecond UV laser processing. We varied the spatial periods of the nanoripples in the range ~ 203–613 nm. Using two different pulse numbers resulted in ripples of different heights. The antiadhesion was measured for all surfaces, showing that the effect is robust against alterations across the whole range of spatial periods tested. Motivated by these results, we fabricated irregular surface nanoripples with spacing in the range ~ 130–480 nm, which showed the same antiadhesive behavior. The tested surfaces may be useful in tools for handling nanofibers such as spoolers for single nanofibers, conveyor belts for producing endless nanofiber nonwoven, and cylindrical tools for fabricating tubular nanofiber nonwoven. Engineered fibers such as carbon nanotubes represent a further candidate application area. |
| first_indexed | 2024-03-13T04:34:41Z |
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| id | doaj.art-e9abab59bcd7408590d1eb4d99ad5657 |
| institution | Directory Open Access Journal |
| issn | 2296-701X |
| language | English |
| last_indexed | 2024-03-13T04:34:41Z |
| publishDate | 2023-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Ecology and Evolution |
| spelling | doaj.art-e9abab59bcd7408590d1eb4d99ad56572023-06-19T07:59:14ZengFrontiers Media S.A.Frontiers in Ecology and Evolution2296-701X2023-06-011110.3389/fevo.2023.11490511149051Robustness of antiadhesion between nanofibers and surfaces covered with nanoripples of varying spatial periodGerda Buchberger0Gerda Buchberger1Marco Meyer2Cristina Plamadeala3Margret Weissbach4Günter Hesser5Werner Baumgartner6Johannes Heitz7Anna-Christin Joel8Institute of Applied Physics, Johannes Kepler University Linz, Linz, AustriaInstitute of Biomedical Mechatronics, Johannes Kepler University Linz, Linz, AustriaInstitute for Biology II, RWTH Aachen University, Aachen, GermanyInstitute of Applied Physics, Johannes Kepler University Linz, Linz, AustriaInstitute for Biology II, RWTH Aachen University, Aachen, GermanyCenter for Surface and Nanoanalytics, Johannes Kepler University Linz, Linz, AustriaInstitute of Biomedical Mechatronics, Johannes Kepler University Linz, Linz, AustriaInstitute of Applied Physics, Johannes Kepler University Linz, Linz, AustriaInstitute for Biology II, RWTH Aachen University, Aachen, GermanySince nanofibers have a high surface-to-volume ratio, van der Waals forces render them attracted to virtually any surface. The high ratio provides significant advantages for applications in drug delivery, wound healing, tissue regeneration, and filtration. Cribellate spiders integrate thousands of nanofibers into their capture threads as an adhesive to immobilize their prey. These spiders have antiadhesive nanoripples on the calamistrum, a comb-like structure on their hindmost legs, and are thus an ideal model for investigating how nanofiber adhesion can be reduced. We found that these nanoripples had similar spacing in the cribellate species Uloborus plumipes, Amaurobius similis, and Menneus superciliosus, independent of phylogenetic relation and size. Ripple spacing on other body parts (i.e., cuticle, claws, and spinnerets), however, was less homogeneous. To investigate whether a specific distance between the ripples determines antiadhesion, we fabricated nanorippled foils by nanosecond UV laser processing. We varied the spatial periods of the nanoripples in the range ~ 203–613 nm. Using two different pulse numbers resulted in ripples of different heights. The antiadhesion was measured for all surfaces, showing that the effect is robust against alterations across the whole range of spatial periods tested. Motivated by these results, we fabricated irregular surface nanoripples with spacing in the range ~ 130–480 nm, which showed the same antiadhesive behavior. The tested surfaces may be useful in tools for handling nanofibers such as spoolers for single nanofibers, conveyor belts for producing endless nanofiber nonwoven, and cylindrical tools for fabricating tubular nanofiber nonwoven. Engineered fibers such as carbon nanotubes represent a further candidate application area.https://www.frontiersin.org/articles/10.3389/fevo.2023.1149051/fullnano spider silkcalamistrumLIPSSbiomimeticlaser processingPET – poly(ethylene terephthalate) |
| spellingShingle | Gerda Buchberger Gerda Buchberger Marco Meyer Cristina Plamadeala Margret Weissbach Günter Hesser Werner Baumgartner Johannes Heitz Anna-Christin Joel Robustness of antiadhesion between nanofibers and surfaces covered with nanoripples of varying spatial period Frontiers in Ecology and Evolution nano spider silk calamistrum LIPSS biomimetic laser processing PET – poly(ethylene terephthalate) |
| title | Robustness of antiadhesion between nanofibers and surfaces covered with nanoripples of varying spatial period |
| title_full | Robustness of antiadhesion between nanofibers and surfaces covered with nanoripples of varying spatial period |
| title_fullStr | Robustness of antiadhesion between nanofibers and surfaces covered with nanoripples of varying spatial period |
| title_full_unstemmed | Robustness of antiadhesion between nanofibers and surfaces covered with nanoripples of varying spatial period |
| title_short | Robustness of antiadhesion between nanofibers and surfaces covered with nanoripples of varying spatial period |
| title_sort | robustness of antiadhesion between nanofibers and surfaces covered with nanoripples of varying spatial period |
| topic | nano spider silk calamistrum LIPSS biomimetic laser processing PET – poly(ethylene terephthalate) |
| url | https://www.frontiersin.org/articles/10.3389/fevo.2023.1149051/full |
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