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...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Penerbit Universiti Kebangsaan Malaysia
2020
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| Online Access: | http://journalarticle.ukm.my/15613/ http://journalarticle.ukm.my/15613/1/2.pdf |
| _version_ | 1848813840760832000 |
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| author | Wang, Lixin Zhang, Shuoyan Zhang, Shuoyan Li, Shanshan |
| author_facet | Wang, Lixin Zhang, Shuoyan Zhang, Shuoyan Li, Shanshan |
| author_sort | Wang, Lixin |
| building | UKM Institutional Repository |
| collection | Online Access |
| 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. |
| first_indexed | 2025-11-15T00:24:35Z |
| format | Article |
| id | oai:generic.eprints.org:15613 |
| institution | Universiti Kebangasaan Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T00:24:35Z |
| publishDate | 2020 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:generic.eprints.org: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 |
| spellingShingle | Wang, Lixin Zhang, Shuoyan Zhang, Shuoyan Li, Shanshan Frictional properties of the wax coverings in Nepenthes alata slippery zone: results from AFM scanning |
| title | 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_short | 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 |
| url | http://journalarticle.ukm.my/15613/ http://journalarticle.ukm.my/15613/ http://journalarticle.ukm.my/15613/1/2.pdf |