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Frictional properties of the wax coverings in Nepenthes alata slippery zone: results from AFM scanning

Slippery zone of Nepenthes alata presents anisotropic friction behaviors depending on its evolved structures. Studies have demonstrated the contribution of lunate cells, but the role of wax coverings has not been specially investigated. In this paper, we showed findings obtained from AFM scanning...

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Main Authors: Wang, Lixin, Zhang, Shuoyan, Li, Shanshan
Format: Article
Language:English
Published: Penerbit Universiti Kebangsaan Malaysia 2020
Online Access:http://journalarticle.ukm.my/15613/1/2.pdf
http://journalarticle.ukm.my/15613/
http://www.ukm.my/jsm/malay_journals/jilid49bil7_2020/KandunganJilid49Bil7_2020.html
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spelling my-ukm.journal.156132020-11-10T08:50:10Z http://journalarticle.ukm.my/15613/ Frictional properties of the wax coverings in Nepenthes alata slippery zone: results from AFM scanning Wang, Lixin Zhang, Shuoyan Zhang, Shuoyan Li, Shanshan Slippery zone of Nepenthes alata presents anisotropic friction behaviors depending on its evolved structures. Studies have demonstrated the contribution of lunate cells, but the role of wax coverings has not been specially investigated. In this paper, we showed findings obtained from AFM scanning and SEM observation on characterizing the frictional properties of wax coverings. Friction data generated by the AFM cantilever on wax coverings along downward and upward directions were different. The difference was insignificant (2.56%) when applying the load force of 300 nN, but increased (4.83-8.40%) when applying the load force of 500-1500 nN. The scanned wax coverings showed no detectable damage when applying the load force of 300 nN, whereas observable damage was presented when the load force exceeded 500 nN. When the load force increased to 1500 nN, the wax coverings were destroyed completely. The results suggest the wax coverings depend on their surface morphology and structural characteristic to generate different frictional properties in different directions, but the difference was inconspicuous to declare the surface anisotropy. This study is helpful for further understanding the anisotropic properties of slippery zone, and motivates the slippery zone to be a bionic prototype for designing anisotropic surfaces. Penerbit Universiti Kebangsaan Malaysia 2020-07 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/15613/1/2.pdf Wang, Lixin and Zhang, Shuoyan and Zhang, Shuoyan and Li, Shanshan (2020) Frictional properties of the wax coverings in Nepenthes alata slippery zone: results from AFM scanning. Sains Malaysiana, 49 (7). pp. 1491-1498. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid49bil7_2020/KandunganJilid49Bil7_2020.html
institution Universiti Kebangsaan Malaysia
building Tun Sri Lanang Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Kebangsaan Malaysia
content_source UKM Journal Article Repository
url_provider http://journalarticle.ukm.my/
language English
description Slippery zone of Nepenthes alata presents anisotropic friction behaviors depending on its evolved structures. Studies have demonstrated the contribution of lunate cells, but the role of wax coverings has not been specially investigated. In this paper, we showed findings obtained from AFM scanning and SEM observation on characterizing the frictional properties of wax coverings. Friction data generated by the AFM cantilever on wax coverings along downward and upward directions were different. The difference was insignificant (2.56%) when applying the load force of 300 nN, but increased (4.83-8.40%) when applying the load force of 500-1500 nN. The scanned wax coverings showed no detectable damage when applying the load force of 300 nN, whereas observable damage was presented when the load force exceeded 500 nN. When the load force increased to 1500 nN, the wax coverings were destroyed completely. The results suggest the wax coverings depend on their surface morphology and structural characteristic to generate different frictional properties in different directions, but the difference was inconspicuous to declare the surface anisotropy. This study is helpful for further understanding the anisotropic properties of slippery zone, and motivates the slippery zone to be a bionic prototype for designing anisotropic surfaces.
format Article
author Wang, Lixin
Zhang, Shuoyan
Zhang, Shuoyan
Li, Shanshan
spellingShingle Wang, Lixin
Zhang, Shuoyan
Zhang, Shuoyan
Li, Shanshan
Frictional properties of the wax coverings in Nepenthes alata slippery zone: results from AFM scanning
author_facet Wang, Lixin
Zhang, Shuoyan
Zhang, Shuoyan
Li, Shanshan
author_sort Wang, Lixin
title Frictional properties of the wax coverings in Nepenthes alata slippery zone: results from AFM scanning
title_short Frictional properties of the wax coverings in Nepenthes alata slippery zone: results from AFM scanning
title_full Frictional properties of the wax coverings in Nepenthes alata slippery zone: results from AFM scanning
title_fullStr Frictional properties of the wax coverings in Nepenthes alata slippery zone: results from AFM scanning
title_full_unstemmed Frictional properties of the wax coverings in Nepenthes alata slippery zone: results from AFM scanning
title_sort frictional properties of the wax coverings in nepenthes alata slippery zone: results from afm scanning
publisher Penerbit Universiti Kebangsaan Malaysia
publishDate 2020
url http://journalarticle.ukm.my/15613/1/2.pdf
http://journalarticle.ukm.my/15613/
http://www.ukm.my/jsm/malay_journals/jilid49bil7_2020/KandunganJilid49Bil7_2020.html
_version_ 1683231768155521024
score 13.211869

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