Biomimetics on the micro- and nanoscale – The 25th anniversary of the lotus effect

• Matthias Mail,
• Kerstin Koch,
• Thomas Speck,
• William M. Megill and
• Stanislav N. Gorb

Beilstein J. Nanotechnol. 2023, 14, 850–856, doi:10.3762/bjnano.14.69

• able to generate surface geometries that corresponded to the boundary conditions of their model, the peel-off force is lower over the structured surface than over a polished one. Their understanding of the relationship between the surface structure and the peel-off force will now make it possible to

Laser-processed antiadhesive bionic combs for handling nanofibers inspired by nanostructures on the legs of cribellate spiders

• Sebastian Lifka,
• Kristóf Harsányi,
• Erich Baumgartner,
• Lukas Pichler,
• Dariya Baiko,
• Karsten Wasmuth,
• Johannes Heitz,
• Marco Meyer,
• Anna-Christin Joel,
• Jörn Bonse and
• Werner Baumgartner

Beilstein J. Nanotechnol. 2022, 13, 1268–1283, doi:10.3762/bjnano.13.105

• ). Subsequently, by means of a newly established peel-off test, the adhesion of an electrospun polyamide fiber-based nonwoven was quantified on such LIPSS-covered aluminium alloy, steel, and titanium alloy samples, as well as on polished (flat) control samples as reference and, additionally, on samples with

• fibers In order to test the theory derived above, electrospinning of polyamide 6 (PA-6) in a laboratory setup onto structured metal samples (aluminum alloy, steel, and titanium alloy) was performed and the peel-off forces were determined using a custom-made peel-test device. PA-6 has an elastic modulus E

• fiber is assumed is still valid in this case. The modulation depth that typically can be achieved for LIPSS (LSFL type [33]) on metals is up to 400 nm. Thus, an antiadhesive effect can be assumed. The peel-off force, that is, the force per unit length of the peeling edge necessary to separate the

Towards 3D self-assembled rolled multiwall carbon nanotube structures by spontaneous peel off

• Jonathan Quinson

Beilstein J. Nanotechnol. 2020, 11, 1865–1872, doi:10.3762/bjnano.11.168

• nanotube forests. The multiwall carbon nanotube structures are comprised of nitrogen-doped and undoped sections, and are obtained via a detailed peel off and roll mechanism. These results open new doors for the development of increasingly complex nanostructures. Keywords: chemical vapor deposition

• ; multiwall carbon nanotubes; nitrogen doping; peel off; rolled carbon nanotubes; Introduction Carbon nanotubes (CNTs) are popular materials used in various applications [1]. These tubular hollow carbon nanomaterials have proven to be useful in multiple scientific fields [2][3][4][5][6]. Complex structures

• is observed, by the naked eye, that layers peel off from the MWCNT forests after synthesis. This is observed without the need to apply any mechanical stress. However, when this phenomenon occurs, it is not possible to identify an area without MWCNTs. In other words, despite the peeling off the

Exfoliation in a low boiling point solvent and electrochemical applications of MoO₃

• Matangi Sricharan,
• Bikesh Gupta,
• Sreejesh Moolayadukkam and
• H. S. S. Ramakrishna Matte

Beilstein J. Nanotechnol. 2020, 11, 662–670, doi:10.3762/bjnano.11.52

• steel current collectors, separated by filter paper dipped in 1 M H2SO4 electrolyte. Results and Discussion LPE assisted by tip sonication is an effective technique to peel off mono- and few-layers from layered bulk materials. In the crystal structure of α-MoO3 the atoms are connected to layers through

Optimization of Mo/Cr bilayer back contacts for thin-film solar cells

• Nima Khoshsirat,
• Fawad Ali,
• Vincent Tiing Tiong,
• Mojtaba Amjadipour,
• Hongxia Wang,
• Mahnaz Shafiei and
• Nunzio Motta

Beilstein J. Nanotechnol. 2018, 9, 2700–2707, doi:10.3762/bjnano.9.252

• of the film to the substrate and the Mo back contact layer could peel off from the substrate during the absorber layer growth at high temperatures or during the deposition of the buffer layer, which most commonly involves a wet chemical process. Moreover, the thickness of the bilayer Mo film needs to

• from the uncoated glass substrate (Figure 1a–c) failing the adhesion test, while the same layer deposited on Cr-coated glass substrates does not peel off (Figure 1d–f). Resistivity Besides the good adhesion to the substrate, the metallic back contact layer in thin-film solar cells should have low

Engineering of oriented carbon nanotubes in composite materials

• Razieh Beigmoradi,
• Abdolreza Samimi and
• Davod Mohebbi-Kalhori

Beilstein J. Nanotechnol. 2018, 9, 415–435, doi:10.3762/bjnano.9.41

• ], copyright 2002 AIP publishing LLC. Fracture stretching method containing two steps, hot press and peel off, to align CNTs. (a) The hot press of the polysulfone (PSF) layer on the composite film of embedded CNTs on a nylon polymer membrane by spraying suspension until dry, (b,c) peel off the PSF layers from

Synthesis of graphene–transition metal oxide hybrid nanoparticles and their application in various fields

• Arpita Jana,
• Elke Scheer and
• Sebastian Polarz

Beilstein J. Nanotechnol. 2017, 8, 688–714, doi:10.3762/bjnano.8.74

• the oxygen functional group of GO, leading to the formation of Zn–O–C bonds. During the reaction, sections of graphene detach from the GO through a layer-by-layer chemical peel-off process (chemical exfoliation) and partially encircle the ZnO NPs. The quasi-core–shell structure of the hybrid was

Phosphorus-doped silicon nanorod anodes for high power lithium-ion batteries

• Chao Yan,
• Qianru Liu,
• Jianzhi Gao,
• Zhibo Yang and
• Deyan He

Beilstein J. Nanotechnol. 2017, 8, 222–228, doi:10.3762/bjnano.8.24

• cycles. For the current density of 9 A/g, a reversible capacity of 1100 mAh/g was obtained in the first cycle, which delivered a capacity retention of 90% after 100 cycles. The capacity reduction in the initial 10 cycles can be ascribed to the polarization and peel off of the active Si. After 10 cycles

Reasons and remedies for the agglomeration of multilayered graphene and carbon nanotubes in polymers

• Rasheed Atif and
• Fawad Inam

Beilstein J. Nanotechnol. 2016, 7, 1174–1196, doi:10.3762/bjnano.7.109

• when high-frequency sound waves are passed through a medium, attenuated waves are produced in the medium as a result. These shock waves peel off the filler one by one from the agglomerate thereby reaching uniform dispersion of the filler in a matrix. The sonication process may be aided by reducing the

Characterisation of thin films of graphene–surfactant composites produced through a novel semi-automated method

• Nik J. Walch,
• Alexei Nabok,
• Frank Davis and
• Séamus P. J. Higson

Beilstein J. Nanotechnol. 2016, 7, 209–219, doi:10.3762/bjnano.7.19

• , were not successful since the transfer ratio was poor. The first withdrawal yielded about 60%. After that the layer was shown to peel off during subsequent dipping cycles. The overall transfer ratio by area (when substrate surface area was compared with graphene LB isotherm) was 10–20%. The most

• of graphene(+)CTAB could be deposited by LS deposition. Attempts to deposit multilayers by the LS technique failed, as the deposited layers began to peel off upon consecutive depositions. Organised monolayer films obtained in this fashion were then characterised by using AFM (Nanoscope III) operating

• Figure 10. As one can see the deposition is not consistent, the graphene layers started to peel off after 3rd deposition most likely because of poor adhesion between graphene layers. However, the thickness increment of 0.87 ± 0.03 nm in the middle of the graph is much smaller and corresponds to graphene

Fullerenes as adhesive layers for mechanical peeling of metallic, molecular and polymer thin films

• Maria B. Wieland,
• Anna G. Slater,
• Barry Mangham,
• Neil R. Champness and
• Peter H. Beton

Beilstein J. Nanotechnol. 2014, 5, 394–401, doi:10.3762/bjnano.5.46

• metal to a dielectric substrate has also been demonstrated for cross-linked self-assembled monolayers (SAM) using a polymeric ‘glue’ to first peel off a Au/SAM/polymer layer, followed by an etch process to remove the gold, thus isolating the SAM/polymer film for subsequent processing [9]. Most recently