Hierarchically patterned polyurethane microgrooves featuring nanopillars or nanoholes for neurite elongation and alignment

• Lester Uy Vinzons,
• Guo-Chung Dong and
• Shu-Ping Lin

Beilstein J. Nanotechnol. 2023, 14, 1157–1168, doi:10.3762/bjnano.14.96

• ,C). There were also no significant differences in the amount of neurite branching among the nanopatterned substrates and the flat PU (Supporting Information File 1, Figure S10). The number of cells and primary neurites was lower on the nanopillar substrate compared with flat PU (Supporting

• (Supporting Information File 1, Figure S16B,C). Moreover, there were also no significant differences in the amount of neurite branching among the substrates (Supporting Information File 1, Figure S17). Similar to the non-grooved substrate, the pillar–groove substrate had lower cell and primary neurite counts

Exploring internal structures and properties of terpolymer fibers via real-space characterizations

• Michael R. Roenbeck and
• Kenneth E. Strawhecker

Beilstein J. Nanotechnol. 2023, 14, 1004–1017, doi:10.3762/bjnano.14.83

• aligned with the fiber axis with significant fibril branching, junctions, and weaving in and out of the exposed surface. Combining topography maps with stiffness maps, we find that locally elevated regions exhibit higher stiffness, regardless of scanning direction, orientation with the fiber axis, or the

• structure. Comparisons of AFM maps from each fiber class revealed that the Technora® nanostructure includes (i) more fibril branching, (ii) less-defined interfaces, and (iii) more homogeneous stiffness profiles than in Kevlar® K29. These semiquantitive comparisons of stiffness were further supported by

Fragmentation of metal(II) bis(acetylacetonate) complexes induced by slow electrons

• Janina Kopyra and
• Hassan Abdoul-Carime

Beilstein J. Nanotechnol. 2023, 14, 980–987, doi:10.3762/bjnano.14.81

• pathways (e.g., branching ratio), will be helpful for using this family of organometallic compounds. Results and Discussion The interaction of low-energy electrons with gaseous compounds ML2 (M: Mn, Co, Ni, Cu, and Zn; L: acac) produces the parent anion [ML2]− and the fragment anion [L]− as the predominant

• summarizes all the observed anion products. As the anion yields shown below in Figures 1–6 show structures characteristic of resonant mechanisms, Table 1 also reports the peak positions of the fragment anions and their branching ratios derived by integration of the ion yield over the respective peaks. At the

• at this energy are compared with the sum of all integrated yields produced, we can provide the branching ratios for fragment production. The [MnL2]#− TNI decomposes into the negative fragments [L]−, [L-C3H3]−, and [C3H3]− at ca. 2.6 eV (Figure 5). For instance, at this energy, we estimate the

Nanotechnology – a robust tool for fighting the challenges of drug resistance in non-small cell lung cancer

• Filip Gorachinov,
• Fatima Mraiche,
• Diala Alhaj Moustafa,
• Ola Hishari,
• Yomna Ismail,
• Jensa Joseph,
• Maja Simonoska Crcarevska,
• Marija Glavas Dodov,
• Nikola Geskovski and
• Katerina Goracinova

Beilstein J. Nanotechnol. 2023, 14, 240–261, doi:10.3762/bjnano.14.23

• the chemical properties (head structure, tail length, degree of unsaturation, and degree of branching) of lipidoids (i.e., above cationic lipid-like materials) and the lipidoid tail structure on biodistribution and efficacy of the NPs. It has been found that imidazole-based synthetic lipidoids

A TiO₂@MWCNTs nanocomposite photoanode for solar-driven water splitting

• Anh Quynh Huu Le,
• Ngoc Nhu Thi Nguyen,
• Hai Duy Tran,
• Van-Huy Nguyen and
• Le-Hai Tran

Beilstein J. Nanotechnol. 2022, 13, 1520–1530, doi:10.3762/bjnano.13.125

• in Figure 2. They confirm that the TiO2@MWCNTs nanocomposite catalyst is successfully prepared via the hydrolysis reaction. It can be seen from Figure 2a that the morphology of MWCNTs is incoherent, curved, interlaced, and with little branching. Furthermore, a non-uniform decoration of TiO2 clusters

• conjunctional bridges. TiO2 particles deposit only on the outside wall surface of the MWCNTs. Additionally, an agglomeration of TiO2 particles is only observed at the branching points, zigzag regions, and the end of MWCNTs where the defects are identified. However, the observation differs from previous studies

Morphology-driven gas sensing by fabricated fractals: A review

• Vishal Kamathe and
• Rupali Nagar

Beilstein J. Nanotechnol. 2021, 12, 1187–1208, doi:10.3762/bjnano.12.88

• provided a large surface area while the branching of the structures helped in diffusion and transport of gas molecules within the sensing material. The samples had fractal dimensions of 1.59 (after two hours of reaction) and 1.38 (after six hours of reaction). Zang et al. demonstrated the mass production

• , roughness, porosity, branching, network structure, and fractal dimensions. The fractal dimensions estimated in the present article show that structures with D in the range of 1.3–1.8 exhibit better gas sensing responses. For fractal dimensions greater than 2, gas sensing behavior is not significant, and

Revealing the formation mechanism and band gap tuning of Sb₂S₃ nanoparticles

• Maximilian Joschko,
• Franck Yvan Fotue Wafo,
• Christina Malsi,
• Danilo Kisić,
• Ivana Validžić and
• Christina Graf

Beilstein J. Nanotechnol. 2021, 12, 1021–1033, doi:10.3762/bjnano.12.76

• the bristle-like shape, even after the growth stopped after 18 h reaction time, a merging process was excluded. The growth of individual particle fragments, such as bristles, has been described in the literature as a dendrite-like splitting or branching of primary particles in an autoclave synthesis

Uniform arrays of gold nanoelectrodes with tuneable recess depth

• Elena O. Gordeeva,
• Ilya V. Roslyakov,
• Alexey P. Leontiev,
• Alexey A. Klimenko and
• Kirill S. Napolskii

Beilstein J. Nanotechnol. 2021, 12, 957–964, doi:10.3762/bjnano.12.72

• active nanoelectrodes in the array can be achieved by modification of the AAO structure and artificial pore branching [34]. Conclusion Templated electrodeposition was successfully applied for the fabrication of recessed Au NEAs. The proposed preparation protocol includes a three-stage electrodeposition

Self-assembly of Eucalyptus gunnii wax tubules and pure ß-diketone on HOPG and glass

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

Beilstein J. Nanotechnol. 2021, 12, 939–949, doi:10.3762/bjnano.12.70

• respect to the substrate and were branched in typical acute angles (Figure 2d). The branching of the tubules was also observed by Jetter and Riederer [15] in a recrystallization study of nonacosanol tubules. There, the formation of side branches was explained by the kinetic regime of crystallization, in

Physical constraints lead to parallel evolution of micro- and nanostructures of animal adhesive pads: a review

• Thies H. Büscher and
• Stanislav N. Gorb

Beilstein J. Nanotechnol. 2021, 12, 725–743, doi:10.3762/bjnano.12.57

• natural substrata. However, the convergent basic architecture of the pads can be tuned into different needs and constraints in the evolution of individual animal groups and species. The structural principle based on branching rods in smooth pads may, for example, additionally contribute to holding the

The influence of an interfacial hBN layer on the fluorescence of an organic molecule

• Christine Brülke,
• Oliver Bauer and
• Moritz M. Sokolowski

Beilstein J. Nanotechnol. 2020, 11, 1663–1684, doi:10.3762/bjnano.11.149

• overlap of states becomes evident in the experiment as it causes a reduction of the FL yield (i.e., quenching). The degree of quenching may vary and, hence, lead to different branching ratios between the radiative and non-radiative channels. In order to obtain high FL yields of molecules on metallic

A 3D-polyphenylalanine network inside porous alumina: Synthesis and characterization of an inorganic–organic composite membrane

• Jonathan Stott and
• Jörg J. Schneider

Beilstein J. Nanotechnol. 2020, 11, 938–951, doi:10.3762/bjnano.11.78

• "crosslinking" due to branching and rejoining of fibrillar supramolecular aggregates occurs. Nevertheless "end-to-end" and "side-to-side" interactions of the pBzg-α-helices are essential for the formation of fibrillar networks. Supported hydrogels that were attached to a porous substrate have been reported by

Hierarchically structured 3D carbon nanotube electrodes for electrocatalytic applications

• Pei Wang,
• Katarzyna Kulp and
• Michael Bron

Beilstein J. Nanotechnol. 2019, 10, 1475–1487, doi:10.3762/bjnano.10.146

• , bottom-up synthesis approaches have been suggested, including branching or hierarchical structuring of carbon-based catalyst supports. In these approaches, one-dimensional (1D, e.g., CNTs or nano-/microfibers) or two-dimensional carbon materials (2D, e.g., graphene) are transformed into three-dimensional

Nanocomposites comprised of homogeneously dispersed magnetic iron-oxide nanoparticles and poly(methyl methacrylate)

• Sašo Gyergyek,
• David Pahovnik,
• Ema Žagar,
• Alenka Mertelj,
• Rok Kostanjšek,
• Miloš Beković,
• Marko Jagodič,
• Heinrich Hofmann and
• Darko Makovec

Beilstein J. Nanotechnol. 2018, 9, 1613–1622, doi:10.3762/bjnano.9.153

• together; however, the number of the individual NPs linked together is quite low. This indicates that branched structures with NPs acting as the branching points were most likely formed instead of a fully cross-linked gel. The fact that the hydrodynamic size of the NP-PMMA nanoparticles was still large in

Sheet-on-belt branched TiO₂(B)/rGO powders with enhanced photocatalytic activity

• Huan Xing,
• Wei Wen and
• Jin-Ming Wu

Beilstein J. Nanotechnol. 2018, 9, 1550–1557, doi:10.3762/bjnano.9.146

• nanobelts when compared with the pristine alkali-hydrothermal synthesized nanobelt. The incorporation of graphene and the branching tactic resulted in a significantly increased specific surface area. When utilized to assist photodegradation of phenol in water under UV light illumination, the reaction rate

Heterostuctures of 4-(chloromethyl)phenyltrichlorosilane and 5,10,15,20-tetra(4-pyridyl)-21H,23H-porphine prepared on Si(111) using particle lithography: Nanoscale characterization of the main steps of nanopatterning

• Phillip C. Chambers and
• Jayne C. Garno

Beilstein J. Nanotechnol. 2018, 9, 1211–1219, doi:10.3762/bjnano.9.112

• nanodots. Proposed model for constructing heterostructures of CMPS and H2TPyP The reaction for producing CMPS nanodots is driven by hydrolysis and condensation reactions that promote the vertical growth of CMPS through crosslinking siloxane bonds [40]. We did not observe evidence of branching or growth in

Bioinspired self-healing materials: lessons from nature

• Joseph C. Cremaldi and
• Bharat Bhushan

Beilstein J. Nanotechnol. 2018, 9, 907–935, doi:10.3762/bjnano.9.85

• processing/filtering sensory signals, introducing memories, and sending out an appropriate response. This highly complex sequence of events relies on nerve cells, or neurons, running throughout the body (Figure 2D,E). This branching network of nerves, where dendrite nerve cells gather into axons, connects

• peripheral nervous system (PNS) consists of the branching network of nerves that attaches to the receptors sending signals to the brain or sending signals to muscle from the brain (Figure 2E). Injuries to the PNS tend to have more restorative function after healing than in the CNS. The reason is the body’s

Electron interactions with the heteronuclear carbonyl precursor H₂FeRu₃(CO)₁₃ and comparison with HFeCo₃(CO)₁₂: from fundamental gas phase and surface science studies to focused electron beam induced deposition

• Ragesh Kumar T P,
• Paul Weirich,
• Lukas Hrachowina,
• Marc Hanefeld,
• Ragnar Bjornsson,
• Helgi Rafn Hrodmarsson,
• Sven Barth,
• D. Howard Fairbrother,
• Michael Huth and
• Oddur Ingólfsson

Beilstein J. Nanotechnol. 2018, 9, 555–579, doi:10.3762/bjnano.9.53

• different channels are opening up and the branching ratios are markedly different. Figure 8 shows DI spectra of H2FeRu3(CO)13 recorded at an impact energy of 70 eV. Panel (a) shows the m/z range from about 50 to 315 while panel (b) shows the m/z range from about 280 to 670. The fragmentation of H2FeRu3(CO

Optimal fractal tree-like microchannel networks with slip for laminar-flow-modified Murray’s law

• Dalei Jing,
• Shiyu Song,
• Yunlu Pan and
• Xiaoming Wang

Beilstein J. Nanotechnol. 2018, 9, 482–489, doi:10.3762/bjnano.9.46

• channel and the parent channel and N is the branching number at every level), which is obtained under the assumption of no-slip conditions at the channel wall–liquid interface. However, at the microscale, the no-slip condition is not always reasonable; the slip condition should indeed be considered at

• the fractal tree-like microchannel network to achieve the minimum hydraulic resistance. The optimal diameter ratio to achieve minimum hydraulic resistance is not only dependent on the branching number, as stated by Murray’s law, but also dependent on the slip length, the level number, the length ratio

• ratio between the daughter channel and the parent channel, N is the branching number, Δ is a parameter relating to the different practical applications. It has been found that Δ = –1/3 for laminar flow and −7/3 for turbulent flow [12][14][15][16][17][18]. Although Murray’s law has been verified by

Advances and challenges in the field of plasma polymer nanoparticles

• Andrei Choukourov,
• Pavel Pleskunov,
• Daniil Nikitin,
• Valerii Titov,
• Artem Shelemin,
• Mykhailo Vaidulych,
• Anna Kuzminova,
• Pavel Solař,
• Jan Hanuš,
• Jaroslav Kousal,
• Ondřej Kylián,
• Danka Slavínská and
• Hynek Biederman

Beilstein J. Nanotechnol. 2017, 8, 2002–2014, doi:10.3762/bjnano.8.200

• plasma may be accompanied by radially directed changes in the material properties (cross-link density and branching) induced by temperature changes and resulting in the accumulation of mechanical stress. If the critical value of stress is achieved, the surface of a NP relaxes with the formation of the

Coexistence of strongly buckled germanene phases on Al(111)

• Weimin Wang and
• Roger I. G. Uhrberg

Beilstein J. Nanotechnol. 2017, 8, 1946–1951, doi:10.3762/bjnano.8.195

• emission. The dots are the experimental data and the fitting curve is the sum of the SC1 to SC4 components. The relative intensities of the four components are shown as a percentage of the total area in the figure. Fitting parameters: Spin-orbit split: 0.545 eV, Branching ratio: 0.67 for SC1 and SC2, 0.63

Application of visible-light photosensitization to form alkyl-radical-derived thin films on gold

• Rashanique D. Quarels,
• Xianglin Zhai,
• Neepa Kuruppu,
• Jenny K. Hedlund,
• Ashley A. Ellsworth,
• Amy V. Walker,
• Jayne C. Garno and
• Justin R. Ragains

Beilstein J. Nanotechnol. 2017, 8, 1863–1877, doi:10.3762/bjnano.8.187

• may occur through disproportionation (12→15, Scheme 3) [44]. Au–C and CO2–Au bonds in addition to crosslinking would be expected to contribute to the mechanical stability of these films. Importantly, Scheme 3 is meant to merely provide “snapshots” of multilayer formation through branching

Spin-chemistry concepts for spintronics scientists

• Konstantin L. Ivanov,
• Alexander Wagenpfahl,
• Carsten Deibel and
• Jörg Matysik

Beilstein J. Nanotechnol. 2017, 8, 1427–1445, doi:10.3762/bjnano.8.143

• experiment. For observing MFEs in steady-state experiments, it is necessary to have some “branching”, which makes the overall product yield dependent on the interconversion rate, i.e., on the external magnetic field strength. In the absence of such branching, all radical pairs would eventually recombine

• , leading to cancellation of potential MFEs. In the example given in Figure 5, branching is provided by the reactions, in which C is formed. MFEs can be obtained not only for recombining radicals but also in other cases where spin interconversion affects the reactivity. Such cases are the quenching of

Investigation of the photocatalytic efficiency of tantalum alkoxy carboxylate-derived Ta₂O₅ nanoparticles in rhodamine B removal

• Subia Ambreen,
• Mohammad Danish,
• Narendra D. Pandey and
• Ashutosh Pandey

Beilstein J. Nanotechnol. 2017, 8, 604–613, doi:10.3762/bjnano.8.65

• sizes of 15 and 21 nm and are smaller than those obtained from Ta(On-Bu)5 (17 nm) and Ta(On-Bu)4(OOCCHCl2) (23 nm). It is well known that branching and increasing the length of alkyl group of alkoxy ligands in precursor alkoxide increases the gelation time and therefore, results in more crystalline

Structural and tribometric characterization of biomimetically inspired synthetic "insect adhesives"

• Matthias W. Speidel,
• Malte Kleemeier,
• Andreas Hartwig,
• Klaus Rischka,
• Angelika Ellermann,
• Rolf Daniels and
• Oliver Betz

Beilstein J. Nanotechnol. 2017, 8, 45–63, doi:10.3762/bjnano.8.6

• was represented by microcrystalline wax or petrolatum (trademark Vaseline) consisting of hydrocarbons of various lengths (C30–C70) and branching positions. The aqueous polar phase was enriched by the water-soluble protein/peptide mixture gelatin or poly(vinyl alcohol), which is considered as a

• generally showed broader (more platykurtic) droplet size ranges with higher standard deviations compared with the second generation. This was certainly the result of the employment of less defined components such as petrolatum or waxes (consisting of hydrocarbons of various lengths and degrees of branching