Kinetics of solvent supported tubule formation of Lotus (Nelumbo nucifera) wax on highly oriented pyrolytic graphite (HOPG) investigated by atomic force microscopy

The time dependence of the formation of lotus wax tubules after recrystallization from various chloroform-based solutions on an HOPG surface at room temperature was studied by atomic force microscopy (magnetic AC mode) taking series of consecutive images of the formation process. The growth of the t...

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Main Authors: Sujit Kumar Dora, Kerstin Koch, Wilhelm Barthlott, Klaus Wandelt
Format: Article
Language:English
Published: Beilstein-Institut 2018-02-01
Series:Beilstein Journal of Nanotechnology
Subjects:
Online Access:https://doi.org/10.3762/bjnano.9.45
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author Sujit Kumar Dora
Kerstin Koch
Wilhelm Barthlott
Klaus Wandelt
author_facet Sujit Kumar Dora
Kerstin Koch
Wilhelm Barthlott
Klaus Wandelt
author_sort Sujit Kumar Dora
collection DOAJ
description The time dependence of the formation of lotus wax tubules after recrystallization from various chloroform-based solutions on an HOPG surface at room temperature was studied by atomic force microscopy (magnetic AC mode) taking series of consecutive images of the formation process. The growth of the tubules oriented in an upright fashion follows a sequential rodlet→ring→tubule behavior. The influence of a number of factors, e.g., different wax concentration in chloroform, the additional presence of water, or salts [(NH4)2SO4, NH4NO3] or a mixture of salt/water in the solution on the growth rate and orientation of the tubules is also investigated. Different wax concentrations were found to have no effect on the growth rate or the orientation of tubules in none of the solutions. The presence of water, however, considerably increased the growth rate of tubule formation, while the presence of salt was again found to have no effect on growth rate or orientation of tubules.
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spelling doaj.art-35190f37aed148c184a7def4bb6284d52022-12-21T23:00:25ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862018-02-019146848110.3762/bjnano.9.452190-4286-9-45Kinetics of solvent supported tubule formation of Lotus (Nelumbo nucifera) wax on highly oriented pyrolytic graphite (HOPG) investigated by atomic force microscopySujit Kumar Dora0Kerstin Koch1Wilhelm Barthlott2Klaus Wandelt3Institute of Theoretical and Physical Chemistry, University of Bonn, Wegelerstrasse 12, 53115 Bonn, GermanyRhine-Waal University of Applied Science, Faculty of Live Sciences, Marie-Curie Str. 1, 47533 Kleve, GermanyNees Institute for Biodiversity of Plants, University of Bonn, Venusbergweg 22, 53115 Bonn, GermanyInstitute of Theoretical and Physical Chemistry, University of Bonn, Wegelerstrasse 12, 53115 Bonn, GermanyThe time dependence of the formation of lotus wax tubules after recrystallization from various chloroform-based solutions on an HOPG surface at room temperature was studied by atomic force microscopy (magnetic AC mode) taking series of consecutive images of the formation process. The growth of the tubules oriented in an upright fashion follows a sequential rodlet→ring→tubule behavior. The influence of a number of factors, e.g., different wax concentration in chloroform, the additional presence of water, or salts [(NH4)2SO4, NH4NO3] or a mixture of salt/water in the solution on the growth rate and orientation of the tubules is also investigated. Different wax concentrations were found to have no effect on the growth rate or the orientation of tubules in none of the solutions. The presence of water, however, considerably increased the growth rate of tubule formation, while the presence of salt was again found to have no effect on growth rate or orientation of tubules.https://doi.org/10.3762/bjnano.9.45AFMcrystallizationepicuticular waxLotusNelumbo nuciferanonacosanol tubulesself-assemblysuperhydrophobic
spellingShingle Sujit Kumar Dora
Kerstin Koch
Wilhelm Barthlott
Klaus Wandelt
Kinetics of solvent supported tubule formation of Lotus (Nelumbo nucifera) wax on highly oriented pyrolytic graphite (HOPG) investigated by atomic force microscopy
Beilstein Journal of Nanotechnology
AFM
crystallization
epicuticular wax
Lotus
Nelumbo nucifera
nonacosanol tubules
self-assembly
superhydrophobic
title Kinetics of solvent supported tubule formation of Lotus (Nelumbo nucifera) wax on highly oriented pyrolytic graphite (HOPG) investigated by atomic force microscopy
title_full Kinetics of solvent supported tubule formation of Lotus (Nelumbo nucifera) wax on highly oriented pyrolytic graphite (HOPG) investigated by atomic force microscopy
title_fullStr Kinetics of solvent supported tubule formation of Lotus (Nelumbo nucifera) wax on highly oriented pyrolytic graphite (HOPG) investigated by atomic force microscopy
title_full_unstemmed Kinetics of solvent supported tubule formation of Lotus (Nelumbo nucifera) wax on highly oriented pyrolytic graphite (HOPG) investigated by atomic force microscopy
title_short Kinetics of solvent supported tubule formation of Lotus (Nelumbo nucifera) wax on highly oriented pyrolytic graphite (HOPG) investigated by atomic force microscopy
title_sort kinetics of solvent supported tubule formation of lotus nelumbo nucifera wax on highly oriented pyrolytic graphite hopg investigated by atomic force microscopy
topic AFM
crystallization
epicuticular wax
Lotus
Nelumbo nucifera
nonacosanol tubules
self-assembly
superhydrophobic
url https://doi.org/10.3762/bjnano.9.45
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