Design of a biomimetic, small-scale artificial leaf surface for the study of environmental interactions

• Miriam Anna Huth,
• Axel Huth,
• Lukas Schreiber and
• Kerstin Koch

Beilstein J. Nanotechnol. 2022, 13, 944–957, doi:10.3762/bjnano.13.83

• for an accurate measurement of the wax coverage. At 15.7 ± 2.6 µg·cm−2, it was the same as the wax coating of a wheat leaf (Figure 6). The wax coating of the technical surface thus corresponded in its chemical properties both qualitatively and quantitatively to the wax coating of the natural surface

• . Wetting properties Natural surface The wetting behavior of a plant surface is relevant for the interaction of the plant with its biological and non-biological environment. For instance, surface moisture plays a crucial role in the development of fungal diseases in plants [74]. Also, the wettability has to

A comprehensive review on electrospun nanohybrid membranes for wastewater treatment

• Senuri Kumarage,
• Imalka Munaweera and
• Nilwala Kottegoda

Beilstein J. Nanotechnol. 2022, 13, 137–159, doi:10.3762/bjnano.13.10

The role of deep eutectic solvents and carrageenan in synthesizing biocompatible anisotropic metal nanoparticles

• Nabojit Das,
• Akash Kumar and
• Raja Gopal Rayavarapu

Beilstein J. Nanotechnol. 2021, 12, 924–938, doi:10.3762/bjnano.12.69

• ethylene glycol in a molar ratio of 1:2 for electrodeposition of a zinc–nickel alloy to provide corrosion protection [90]. Due to the ever-rising interest in DESs for nanomaterial synthesis, a fundamental understanding regarding interfacial behavior and mass transport, such as ionic adsorption, surface

• wetting, double layered structure, and hydrogen bonding is needed as it will allow chemists to controllably manipulate the nanoscale growth [91]. While, in-depth studies (experimental and computational) regarding these aspects are yet to come, several significant preliminary studies have been reported

Controlling the electronic and physical coupling on dielectric thin films

• Philipp Hurdax,
• Michael Hollerer,
• Larissa Egger,
• Georg Koller,
• Xiaosheng Yang,
• Anja Haags,
• Serguei Soubatch,
• Frank Stefan Tautz,
• Mathias Richter,
• Alexander Gottwald,
• Peter Puschnig,
• Martin Sterrer and
• Michael G. Ramsey

Beilstein J. Nanotechnol. 2020, 11, 1492–1503, doi:10.3762/bjnano.11.132

• critical role of the work function for charging and its influence on the surface wetting capability of the molecules will be highlighted. Work function control of electronic coupling Figure 4 displays angle-resolved ultraviolet photoemission spectroscopy (ARUPS) scans after the 6P molecules were submitted

Analysis of catalyst surface wetting: the early stage of epitaxial germanium nanowire growth

• Owen C. Ernst,
• Felix Lange,
• David Uebel,
• Thomas Teubner and
• Torsten Boeck

Beilstein J. Nanotechnol. 2020, 11, 1371–1380, doi:10.3762/bjnano.11.121

Nanostructured and oriented metal–organic framework films enabling extreme surface wetting properties

• Andre Mähringer,
• Julian M. Rotter and
• Dana D. Medina

Beilstein J. Nanotechnol. 2019, 10, 1994–2003, doi:10.3762/bjnano.10.196

• report on the synthesis of highly oriented and nanostructured metal–organic framework (MOF) films featuring extreme surface wetting properties. The Ni- and Co- derivatives of the metal–catecholate series (M-CAT-1) were synthesized as highly crystalline bulk materials and thin films. Oriented pillar-like

• ][62][63][64]. Very recently, a copper mesh decorated with hybrid Cu(OH)2/MOF-nanobrushes showed underwater contact angles suggesting superoleophobic properties [65]. However, the use of well-defined MOF films for encoding on-surface wetting properties is yet to be revealed. Here we report the

• synthesis of highly oriented, nanostructured MOF films that mimic architectures observed in nature, resulting in highly unusual, extreme surface wetting properties. For the synthesis, the Ni- and Co-derivatives of the metal–catecholate series (M-CAT-1) were selected [66]. First, these M-CAT-1 derivatives

Features and advantages of flexible silicon nanowires for SERS applications

• Hrvoje Gebavi,
• Vlatko Gašparić,
• Dubravko Risović,
• Nikola Baran,
• Paweł Henryk Albrycht and
• Mile Ivanda

Beilstein J. Nanotechnol. 2019, 10, 725–734, doi:10.3762/bjnano.10.72

• strong enough to overcome the stiffening caused by sputtering. Another significant substrate feature is surface wetting. Unlike vertical SiNWs [38], horizontal SiNWs are hydrophilic, as freshly prepared SiNW substrate as well as after Ag sputtering (Supporting Information File 1, Figure S12). The reasons

A new bioinspired method for pressure and flow sensing based on the underwater air-retaining surface of the backswimmer Notonecta

• Matthias Mail,
• Adrian Klein,
• Horst Bleckmann,
• Anke Schmitz,
• Torsten Scherer,
• Peter T. Rühr,
• Goran Lovric,
• Robin Fröhlingsdorf,
• Stanislav N. Gorb and
• Wilhelm Barthlott

Beilstein J. Nanotechnol. 2018, 9, 3039–3047, doi:10.3762/bjnano.9.282

• high adhesive forces, in turn indicating that the pins became stuck inside the droplet. When the droplet lies on the surface, the clubs support the droplet and prevent surface wetting of the hemelytron (Figure 6b). The results so far suggest that Notonecta uses air layers in combination with

Controlling surface morphology and sensitivity of granular and porous silver films for surface-enhanced Raman scattering, SERS

• Sherif Okeil and
• Jörg J. Schneider

Beilstein J. Nanotechnol. 2018, 9, 2813–2831, doi:10.3762/bjnano.9.263

• silver crystallites in the films. With the systematic combination of oxidizing and reducing rf plasmas and a variation of the different plasma parameters, complex 3D silver nanostructures with tunable surface roughness and nanoporosity can be obtained. Optical behavior and surface wetting of differently

Biomimetic surface structures in steel fabricated with femtosecond laser pulses: influence of laser rescanning on morphology and wettability

• Camilo Florian Baron,
• Alexandros Mimidis,
• Daniel Puerto,
• Evangelos Skoulas,
• Emmanuel Stratakis,
• Javier Solis and
• Jan Siegel

Beilstein J. Nanotechnol. 2018, 9, 2802–2812, doi:10.3762/bjnano.9.262

• dependence of surface wetting on surface energy and topography makes it particularly difficult to predict the wetting scenario, knowledge of the apparent contact angle alone is often sufficient for practical applications. For the particular case of steel, it is known that the laser-processed material evolves

• Experimental section, the surface wetting was measured after at least 15 days after irradiation so that the surface was stabilized, allowing the formation of this free low energy coating required for a stable surface. A straightforward way to measure the apparent contact angle wetting behavior of a surface is

Surfactant-induced enhancement of droplet adhesion in superhydrophobic soybean (Glycine max L.) leaves

• Oliver Hagedorn,
• Ingo Fleute-Schlachter,
• Hans Georg Mainx,
• Viktoria Zeisler-Diehl and
• Kerstin Koch

Beilstein J. Nanotechnol. 2017, 8, 2345–2356, doi:10.3762/bjnano.8.234

• mainly of the primary alcohol triacosan-1-ol and octacosan-1-ol. An improvement of surface wetting and droplet adhesion was achieved by adding surfactants SBO 10, XP ED 0075 XP ED 28-13 with higher HLB values to the liquid. Such surfactants induce dissolution of the wax crystals and increase the droplet

Role of oxygen in wetting of copper nanoparticles on silicon surfaces at elevated temperature

• Tapas Ghosh and
• Biswarup Satpati

Beilstein J. Nanotechnol. 2017, 8, 425–433, doi:10.3762/bjnano.8.45

• . Keywords: copper; cupric oxide; electron diffraction; galvanic displacement reaction; oxidation; surface wetting; transmission electron microscopy; Introduction The transition metal oxide cupric oxide (CuO) is a stable oxide of copper, and due to its diverse applications, immense research on CuO

Morphology of SiO₂ films as a key factor in alignment of liquid crystals with negative dielectric anisotropy

• Volodymyr Tkachenko,
• Antigone Marino,
• Eva Otón,
• Noureddine Bennis and
• Josè Manuel Otón

Beilstein J. Nanotechnol. 2016, 7, 1743–1748, doi:10.3762/bjnano.7.167

• of particle incidence. Moreover, two-fold alignment domains can appear with two easy axes symmetrical with respect to that plane [4][8]. Amosova et al. [5] explained switching in LC alignment in terms of the length of the crystallites forming relief of the aligning surface and surface wetting by

Surface roughness rather than surface chemistry essentially affects insect adhesion

• Matt W. England,
• Tomoya Sato,
• Makoto Yagihashi,
• Atsushi Hozumi,
• Stanislav N. Gorb and
• Elena V. Gorb

Beilstein J. Nanotechnol. 2016, 7, 1471–1479, doi:10.3762/bjnano.7.139

• relatively little attention from researchers working on surface science and engineering [24][25]. Another possible reason might be that the properties of unwettable biological surfaces, other than surface wetting/de-wetting, have not been tested. The question of whether surface chemistry or surface roughness

Self-organization of gold nanoparticles on silanated surfaces

• Htet H. Kyaw,
• Salim H. Al-Harthi,
• Azzouz Sellai and
• Joydeep Dutta

Beilstein J. Nanotechnol. 2015, 6, 2345–2353, doi:10.3762/bjnano.6.242

• . To the best of our knowledge, this is the first report and intensive analysis of self-organisation of AuNPs depending on different orientations of self-assembled APTES molecules on glass substrates. This was studied by observing coverage of AuNPs on glass substrate, difference in surface wetting and

• important role to change the surface wetting properties of the glass substrates leading to strong or weak bonding between APTES and metal nanoparticles like Au or Ag [25][26]. Wetting behavior of APTES-functionalized glass substrates Water contact angle (WCA) measurements were performed to study the surface

• wetting behavior of APTES-functionalized glass substrates. The corresponding WCAs are shown in Figure 3. Four different types of surface wetting properties were observed on the same APTES-functionalized substrate surfaces: hydrophilic surface with WCA of ca. 41° (Figure 3, type IV) was obtained due to the

Exploiting the hierarchical morphology of single-walled and multi-walled carbon nanotube films for highly hydrophobic coatings

• Francesco De Nicola,
• Paola Castrucci,
• Manuela Scarselli,
• Francesca Nanni,
• Ilaria Cacciotti and
• Maurizio De Crescenzi

Beilstein J. Nanotechnol. 2015, 6, 353–360, doi:10.3762/bjnano.6.34

• respect to the MWCNT surface. Wetting states are studied changing the liquid surface tension by adding different ethanol concentrations in water. Wenzel regime (green solid line) fit reports a roughness factor r = 1.08 ± 0.01, while lipophilic (blue solid line) and hydrophobic (red solid line) Cassie

Si/Ge intermixing during Ge Stranski–Krastanov growth

• Alain Portavoce,
• Khalid Hoummada,
• Antoine Ronda,
• Dominique Mangelinck and
• Isabelle Berbezier

Beilstein J. Nanotechnol. 2014, 5, 2374–2382, doi:10.3762/bjnano.5.246

• ) and perpendicular to a {113} facet (solid line). In both profiles, the surface wetting layer, with a Ge composition of about 10 atom %, can be observed. In the case of the {111} facet, the Ge concentration in the island is almost constant, at approximately 14 atom %. The {113} facet also exhibits a

• island the profiles in Figure 9b were measured. We observed the surface wetting layer, followed by the Si buffer and no Ge segregation at the Si buffer/island interface. Within the island, the Ge concentration is constant (≈15 atom %) on ≈20 nm before and progressively increases until reaching the base

The study of surface wetting, nanobubbles and boundary slip with an applied voltage: A review

• Yunlu Pan,
• Bharat Bhushan and
• Xuezeng Zhao

Beilstein J. Nanotechnol. 2014, 5, 1042–1065, doi:10.3762/bjnano.5.117

• The drag of fluid flow at the solid–liquid interface in the micro/nanoscale is an important issue in micro/nanofluidic systems. Drag depends on the surface wetting, nanobubbles, surface charge and boundary slip. Some researchers have focused on the relationship between these interface properties. In

• force on the probe were measured on an octadecyltrichlorosilane (OTS) surface with applied voltage. The influence of the surface charge on the boundary slip and drag of fluid flow has been discussed. Finally, the influence of the applied voltage on the surface wetting, nanobubbles, surface charge

• liquid, surface wetting, surface charge, nanobubbles and boundary slip are believed to affect the drag of liquid flow [3][4][5][6][7][8][9][10]. By applying a voltage to the system, the surface wettability can be changed, known as electrowetting, and the surface charge density can be changed as well [11

Variations in the structure and reactivity of thioester functionalized self-assembled monolayers and their use for controlled surface modification

• Inbal Aped,
• Yacov Mazuz and
• Chaim N. Sukenik

Beilstein J. Nanotechnol. 2012, 3, 213–220, doi:10.3762/bjnano.3.24

• , the exposure of the high-free-energy sulfonated surface to organic solvent leads to surface reorganization and loss of hydrophilicity. Thus, in order to take advantage of the enormous change in surface wetting achieved by the oxidation of a system such as 1g–i (from a water contact angle of over 100

• control over surface wetting. The initially deposited monolayers are stable surfaces whose hydrophobicity can be systematically varied based on the length of the alkyl chain of the acyl moiety. Variously conjugated versions of the acyl moiety provide useful wavelength control over the photochemistry of

Impact of cell shape in hierarchically structured plant surfaces on the attachment of male Colorado potato beetles (Leptinotarsa decemlineata)

• Bettina Prüm,
• Robin Seidel,
• Holger Florian Bohn and
• Thomas Speck

Beilstein J. Nanotechnol. 2012, 3, 57–64, doi:10.3762/bjnano.3.7

• stabilisation of the plant tissue and reduction of uncontrolled water loss by providing a transport barrier, the cuticle, e.g., influences surface wetting and sometimes allows for self-cleaning by draining of water. Furthermore, the cuticle can provide protection against harmful radiation, influences the

Hierarchically structured superhydrophobic flowers with low hysteresis of the wild pansy (Viola tricolor) – new design principles for biomimetic materials

• Anna J. Schulte,
• Damian M. Droste,
• Kerstin Koch and
• Wilhelm Barthlott

Beilstein J. Nanotechnol. 2011, 2, 228–236, doi:10.3762/bjnano.2.27

• solid in contact with the liquid and is dimensionless. Further important factors in surface wetting are the static contact angle hysteresis (CAH) and the tilt angle (TA). The CAH describes the difference between the advancing and receding CAs of a moving droplet, or of one increasing and decreasing in