Combining physical vapor deposition structuration with dealloying for the creation of a highly efficient SERS platform

• Adrien Chauvin,
• Walter Puglisi,
• Damien Thiry,
• Cristina Satriano,
• Rony Snyders and
• Carla Bittencourt

Beilstein J. Nanotechnol. 2023, 14, 83–94, doi:10.3762/bjnano.14.10

• SERS properties of the nanoporous structure. Using scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) the morphology and surface composition of each nanoporous structure were respectively evaluated and used to describe the SERS properties of the samples. Results and

• to the alloy thin film. Three different silver compositions were selected, namely 18, 30, and 36 atom %, and characterized by SEM/energy-dispersive X-ray spectroscopy (EDX). Figure 1 displays the SEM micrograph of the as-deposited thin films. The thin films exhibit a columnar morphology (see the

• cross-section SEM images in Figure 1d–f). The top view images (Figure 1a–c) reveal the presence of dispersed hexagonal columns. A possible explanation for the formation of the hexagonal structure is due to the Guinier–Preston (GP) zone of the silver–aluminum alloy system [31]. The GP zone induces the

Gap-directed chemical lift-off lithographic nanoarchitectonics for arbitrary sub-micrometer patterning

• Chang-Ming Wang,
• Hong-Sheng Chan,
• Chia-Li Liao,
• Che-Wei Chang and
• Wei-Ssu Liao

Beilstein J. Nanotechnol. 2023, 14, 34–44, doi:10.3762/bjnano.14.4

• to etch the exposed underlying Au film. After 30 min of etching, the substrate was rinsed with deionized water and blown dry with nitrogen gas. The transferred metal structures were then characterized by optical microscopy, scanning election microscopy (SEM, JEOL JSM-7600F, Tokyo, Japan) and atomic

• stamp line features. These gaps therefore result in parallel linear SAM strips ranging from 150 nm to sub-10 nm wide after the CLL operation, and a new resolution limit of 5 nm in the CLL process is achieved when the used stamp height is 700 nm (Figure 4B–F). For 150 nm features SEM (JEOL JSM-7600F

• characterized by SEM for feature line width of (B) 150 nm and by AFM for feature line widths (C) 80 nm (D) 50 nm (E) 35 nm, and (F) 5 nm. Scale bar is 2 μm (B) and (C), and 100 nm (D–F). Illustration of the gap-directed chemical lift-off lithography process. (A) The selective removal of alkanethiols from an Au

Observation of collective excitation of surface plasmon resonances in large Josephson junction arrays

• Roger Cattaneo,
• Mikhail A. Galin and
• Vladimir M. Krasnov

Beilstein J. Nanotechnol. 2022, 13, 1578–1588, doi:10.3762/bjnano.13.132

• characteristics from (a). The peak represents the resonant step. It reduces with decreasing N and is not visible for N = 106 (lower panel) below the threshold number of JJs. (a) Optical image of a superconducting detector with a log-periodic microwave antenna. (b) SEM image of a nanoscale sensor junction (false

Induced electric conductivity in organic polymers

• Konstantin Y. Arutyunov,
• Anatoli S. Gurski,
• Vladimir V. Artemov,
• Alexander L. Vasiliev,
• Azat R. Yusupov,
• Danfis D. Karamov and
• Alexei N. Lachinov

Beilstein J. Nanotechnol. 2022, 13, 1551–1557, doi:10.3762/bjnano.13.128

• Center FSRC “Crystallography and Photonics” RAS, and were partly supported by the Ministry of Science and Higher Education of the Russian Federation within the State assignment FSRC “Crystallography and Photonics” RAS in the part of SEM and TEM measurements. Funding The work was supported by the Mirror

Photoelectrochemical water oxidation over TiO₂ nanotubes modified with MoS₂ and g-C₃N₄

• Phuong Hoang Nguyen,
• Thi Minh Cao,
• Tho Truong Nguyen,
• Hien Duy Tong and
• Viet Van Pham

Beilstein J. Nanotechnol. 2022, 13, 1541–1550, doi:10.3762/bjnano.13.127

• materials (Figure 1b). This agrees with the results of previous publications in which hydrothermal methods were applied [24][25][26]. The SEM image of the g-C3N4 material shows the uniform nanosheets that were fabricated by the melamine pyrolysis method (Figure 1c). After the deposition of 2D materials MoS2

• and g-C3N4 onto the TNAs substrate, we examined the morphology of these heterostructures by using SEM (Figure 2). There are some small pieces that are randomly distributed on the surface of TNAs in Figure 2a, which were attributed to be MoS2. There is a similar result in the SEM image of g-C3N4/TNAs

• ultrasonic treatment peeled the MoS2 material into thinner layered structures. This is in agreement with the SEM images, in which material with rather small and thinner structures scattered on the surface of TNAs was observed. The functional groups and chemical bonds of the as-prepared materials were

Non-stoichiometric magnetite as catalyst for the photocatalytic degradation of phenol and 2,6-dibromo-4-methylphenol – a new approach in water treatment

• Joanna Kisała,
• Anna Tomaszewska and
• Przemysław Kolek

Beilstein J. Nanotechnol. 2022, 13, 1531–1540, doi:10.3762/bjnano.13.126

• SEM, X-ray diffraction, and ultraviolet–visible (UV–vis) analysis. The XRD and UV–vis results were published in our previous article [17]. We present this data again in this article as it is necessary for the discussion of the results. Zeta potential measurements were also presented in another

• forms a porous structure. There is a disparity in the particle sizes measured with SEM and XRD, because the particle sizes detected using these two techniques are not in the same orientation, and the terms "particle size" and "crystal size" refer to different concepts (a particle may contain several or

• SEM reveals the maximum size of the particles. The catalytic activity of commercially available M1 and M2 was evaluated through the photocatalytic degradation of phenol and DBMP. The photocatalytic activity was compared with the efficiency of ozonolysis. The photocatalytic efficiency is improved by

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

• nanocomposite characterizations The surface morphology of MWCNTs and the TiO2@MWCNTs nanocomposite is characterized by using field-emission scanning electron microscopy (FE-SEM, S4800) and transmission electron microscopy (TEM, JEOL-1400). The crystallization behavior of the catalysts is analyzed by X-ray

• surface with a size of 1.5 × 2.0 cm2 is irradiated. A schematic of the experimental apparatus is described in Figure 1. Results and Discussion Characterization of the TiO2@MWCNTs nanocomposite catalyst FE-SEM images of the morphology of the MWCNTs, TiO2 powder, and the TiO2@MWCNTs nanocomposite are shown

• performance of the TiO2@MWCNTs electrode for water splitting. Schematic of the photoelectrochemical water splitting experimental apparatus. SEM images of (a) MWCNTs, (b) TiO2, and (c) the TiO2@MWCNTs nanocomposite. TEM images of (a) MWCNTs, (b) TiO2, and (c) the TiO2@MWCNTs nanocomposite. EDX spectra of

In search of cytotoxic selectivity on cancer cells with biogenically synthesized Ag/AgCl nanoparticles

• Mitzi J. Ramírez-Hernández,
• Mario Valera-Zaragoza,
• Omar Viñas-Bravo,
• Ariana A. Huerta-Heredia,
• Miguel A. Peña-Rico,
• Erick A. Juarez-Arellano,
• David Paniagua-Vega,
• Eduardo Ramírez-Vargas and
• Saúl Sánchez-Valdes

Beilstein J. Nanotechnol. 2022, 13, 1505–1519, doi:10.3762/bjnano.13.124

• ° in 2θ. Quantitative chemical analysis was performed on a JEOL JSM-7401F field-emission scanning electron microscope (FE-SEM) using EDX. An acceleration voltage of 15 kV and a working distance of 8 mm were used. The samples were precoated with Au/Pd for 10 seconds. Ultraviolet–visible spectroscopy was

Hydroxyapatite–bioglass nanocomposites: Structural, mechanical, and biological aspects

• Olga Shikimaka,
• Mihaela Bivol,
• Bogdan A. Sava,
• Marius Dumitru,
• Christu Tardei,
• Beatrice G. Sbarcea,
• Daria Grabco,
• Constantin Pyrtsac,
• Daria Topal,
• Andrian Prisacaru,
• Vitalie Cobzac and
• Viorel Nacu

Beilstein J. Nanotechnol. 2022, 13, 1490–1504, doi:10.3762/bjnano.13.123

• microstructural characteristics, such as micromorphology of the obtained materials and the qualitative and quantitative distribution of the granular phase and pores, SEM analysis of the sintered materials was performed using a Zeiss Auriga FESEM-FIB electron microscope. For SEM analysis, the samples underwent a

• special cleaning process for 6 min in a nitrogen plasma jet in a FISCHONE Plasma Cleaner. A FEI QUANTA INSPECT S SEM was used to observe structure and morphology of the samples after their treatment in simulated body fluid, as well as to acquire the energy-dispersive X-ray (EDX) spectra and the elemental

• (mm2) [40]. The surface of the samples was then investigated by SEM to estimate their apatite-forming ability. The pH value of SBF was measured before and after the insertion of the sintered sample using a Multi-parameter analyzer Consort C1010, version 2.0, which has the possibility to measure pH

Structural studies and selected physical investigations of LiCoO₂ obtained by combustion synthesis

• Monika Michalska,
• Paweł Ławniczak,
• Tomasz Strachowski,
• Adam Ostrowski and
• Waldemar Bednarski

Beilstein J. Nanotechnol. 2022, 13, 1473–1482, doi:10.3762/bjnano.13.121

• solution combustion method, and the effects of the annealing temperature (450–900 °C) on structure and composition were investigated using various methods, including XRD, SEM, EPR, and electrical studies. It was found that, as the process temperature increases, the value of the specific surface area

• analysis, (ii) morphology (size and distribution of grains) by using SEM, (iii) specific surface area (SSA) by carrying out Brunauer–Emmett–Teller (BET) measurements, (iv) oxidation states of metals by measuring electron paramagnetic resonance (EPR), and (v) electrical parameters (thermal dependencies of

• . Hence, the averaging of the measurement results is inaccurate, and the results become unreliable [60]. SEM analysis The morphology of the LiCoO2 crystallites was determined using a scanning electron microscope Auriga CrossBeam Workstation (Carl Zeiss). Cross sections of the fabricated laminates were

Orally administered docetaxel-loaded chitosan-decorated cationic PLGA nanoparticles for intestinal tumors: formulation, comprehensive in vitro characterization, and release kinetics

• Sedat Ünal,
• Osman Doğan and
• Yeşim Aktaş

Beilstein J. Nanotechnol. 2022, 13, 1393–1407, doi:10.3762/bjnano.13.115

• characterization of both coated and uncoated DCX-PLGA NPs was carried out by scanning electron microscopy (SEM). As it can be seen in Figure 1, both formulations exhibit perfectly round spheres with smooth surfaces. No free DCX crystals were found in the SEM pictures of any formulation, confirming that DCX was

• efficiently encapsulated in the NPs. In addition, SEM micrographs were interpreted to be in accordance with the mean particle size data measured with the dynamic light scattering. Determination of drug loading capacity The rate of drug encapsulation is one of the important characterization parameters that

• potential (mV) was stated as the average of three subsequent measurements ± SD. Particle shape and surface morphology The shape and surface morphology of DCX-PLGA NPs and CS/DCX-PLGA NPs were investigated by SEM (Zeiss evo LS-10, Germany). For this purpose, NPs were covered with a 100 Å thick coating of

LED-light-activated photocatalytic performance of metal-free carbon-modified hexagonal boron nitride towards degradation of methylene blue and phenol

• Nirmalendu S. Mishra and
• Pichiah Saravanan

Beilstein J. Nanotechnol. 2022, 13, 1380–1392, doi:10.3762/bjnano.13.114

• ]. Nevertheless, the obtained MBN-80 was found to be a potential photocatalyst which can be activated with LED light and has a limited spectrum as compared to solar light. The SEM images of MBN-80 before and after five reuse cycles is depicted in Figure 7e,f. A comparison between the photocatalytic performance of

• -light-driven photocatalytic activity of MBN-80 over the nonresponsive photoinactive HBN. (a) HR-XRD plots for HBN and MBN-80, (b–d) SEM images for HBN, MBN-25, MBN-50, and (e, f) MBN-80. HRTEM images for (g, h) MBN-80 nanosheets, (i) HAADF STEM image, and (j–m) elemental mapping of B, N, C, and O in MBN

• ) photocatalytic performance of MB up to five cycles. (h, i) SEM images of MBN-80 before and after five reuse cycles. (a) Electronic band structure demonstrating the edge potentials for MBN. (b) Charge trapping analysis using various quenching reagents and (c) GC–MS analysis for the obtained intermediates. A

Dry under water: air retaining properties of large-scale elastomer foils covered with mushroom-shaped surface microstructures

• Matthias Mail,
• Stefan Walheim,
• Thomas Schimmel,
• Wilhelm Barthlott,
• Stanislav N. Gorb and
• Lars Heepe

Beilstein J. Nanotechnol. 2022, 13, 1370–1379, doi:10.3762/bjnano.13.113

• with a thin gold layer (thickness 20 nm, Sputter Coater 108 auto, Cressington, Dortmund). Afterwards the samples have been analyzed using SEM (15 kV, CAMBRIDGE Stereoscan 200 SEM, Zeiss AG, Oberkochen). Results and Discussion As a first step of the investigation of the air retaining capabilities of

• the theoretically predicted values, also the SEM investigation of the samples submerged for one month in tap water offered some important results for the practical application of air retaining MSM. Mushroom-like microstructures are known for their antifouling properties against such hard-foulers as

• , the silvery shine indicates the kept air. c) SEM image of the surface structure of the Salvinia leaf. d) SEM image of the MSM. Confirmation of the persistence of the air layer in low water depth and analysis of the shape of the air–water interface by confocal laser scanning microscopy (CLSM

Growing up in a rough world: scaling of frictional adhesion and morphology of the Tokay gecko (Gekko gecko)

• Anthony J. Cobos and
• Timothy E. Higham

Beilstein J. Nanotechnol. 2022, 13, 1292–1302, doi:10.3762/bjnano.13.107

• ability to adhere to surfaces in nature. Using Tokay geckos (Gekko gecko), we examined the post-hatching scaling of morphology and frictional adhesive performance in animals ranging from 5 to 125 grams in body mass. We quantified setal density, setal length, and toepad area using SEM. This was then used

• Health). Toe pad area was measured from the scansors bearing setae following previous methods [47]. Following toepad area measures, each toe was bisected sagittally and then stored in 100% ethanol for subsequent SEM imaging. The toes were removed from the ethanol and placed into a critical-point drying

• unit to dehydrate the tissue prior to imaging. They were then placed on a double stick conductive carbon tape affixed to a stub and sputter coated with a platinum/palladium coating. Toes were then viewed using a ThermoFisher Scientific Quanta™ 3D 200i SEM in the Central Facility for Advanced Microscopy

Enhanced electronic transport properties of Te roll-like nanostructures

• E. R. Viana,
• N. Cifuentes and
• J. C. González

Beilstein J. Nanotechnol. 2022, 13, 1284–1291, doi:10.3762/bjnano.13.106

• under mild conditions. A large quantity of these polycrystalline nanostructures with a diameter between 100 and 900 nm and a wall thickness around 50 nm were synthesized and characterized by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), transmission electron microscopy

• (SEM, FEI Quanta 3D FEG) at an acceleration voltage of 15.0 kV. An EDS system attached to the SEM was employed to analyze the chemical composition. TEM, high-resolution TEM (HRTEM) images, and SAED measurements were carried out in an FEI Tecnai G2-20 S-TWIN operated at 200 kV in a bright-field (BF) TEM

•  1b, with a mean diameter of around 550 nm. Due to the tip at the end of the nanostructures, the diameters were measured approximately at the center part, where the size is uniform. The wall thickness of the nanostructures was found between 45 and 55 nm. Figure 1c shows a high-magnification SEM image

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

• enough to significantly lower the peel-off force. Additionally, due to the lower peel-off force on the laser-structured samples, no fibers can be found after testing on the laser-structured surfaces, whereas on the polished surfaces a layer of fibers remains (OM and SEM). This is shown exemplary for the

• Technics Inc., Alexandria, USA; 7–10 mA, 5 min) and studied with the SEM (525 M, Philips AG, Amsterdam, Netherlands). Legs of U. plumipes were air-dried and otherwise prepared the same way for SEM analysis. Measurements were performed with ImageJ’s FIJI software [35]. Legs of A. similis were air-dried and

• gold-sputtered (S150B, Edwards). The metatarsi were examined using a focused ion beam scanning electron microscope (FIB-SEM) tomography (Strata 400 STEM, FEI Company, Oregon, USA) at the Central Facility for Electron Microscopy at the RWTH Aachen University. Measurements were performed using the

Studies of probe tip materials by atomic force microscopy: a review

• Ke Xu and
• Yuzhe Liu

Beilstein J. Nanotechnol. 2022, 13, 1256–1267, doi:10.3762/bjnano.13.104

• electric field. The nanotube tips produced by this method have strong adhesion and mechanical stability. Since the above methods require scanning electron microscopy (SEM) monitoring throughout the transfer process, the process is relatively time-consuming. Hafner et al. [40] proposed a new method to

Roll-to-roll fabrication of superhydrophobic pads covered with nanofur for the efficient clean-up of oil spills

• Patrick Weiser,
• Robin Kietz,
• Marc Schneider,
• Matthias Worgull and
• Hendrik Hölscher

Beilstein J. Nanotechnol. 2022, 13, 1228–1239, doi:10.3762/bjnano.13.102

• case of later envisioned commercial applications, by two winding rollers that separate the two foils with a peeling motion (Figure 2d). The SEM (Zeiss Evo 10) picture in Figure 3a reveals the typical crater-like topography of nanofur with hair on the crater edges [16]. Typical contact angles of water

• , the nanofur hairs are pulled out of the PP film. The lower roller is smooth and not heated, but presses the film sandwich against the upper sandblasted roller. (d) Finally, PP and COC are separated through peeling. (a) SEM picture of a side cut of a PP nanofur film (view angle 84°). (b) A water

Application of nanoarchitectonics in moist-electric generation

• Jia-Cheng Feng and
• Hong Xia

Beilstein J. Nanotechnol. 2022, 13, 1185–1200, doi:10.3762/bjnano.13.99

• microscopy (SEM) image of an individual single-walled carbon nanotube (SWNT) device. (c) Dependence of the induced voltage difference, ΔV, on the quantity of water injected into the chamber. ΔV increases with the quantity of water inside the chamber and tends to saturate at 500 μL. It is nearly symmetric for

• ; W. Guo), Copyright 2014 Springer Nature. This content is not subject to CC BY 4.0. (a) SEM image of the porous carbon film. (b) The porous carbon film power generation device and its performance are depicted schematically. Figure 3a, 3b, and 3f were reproduced from [9], Ding, Tianpeng et al., “All

• 4.0. (b, c) Cross-sectional SEM images of a Ni–Al LDH film. Figure 4b and 4c were adapted from [52]. This article was published in Nano Energy, vol. 70, by J. Tian; Y. Zang; J. Sun; J. Qu; F. Gao; G. Liang, “Surface charge density-dependent performance of Ni–Al layered double hydroxide-based flexible

Rapid fabrication of MgO@g-C₃N₄ heterojunctions for photocatalytic nitric oxide removal

• Minh-Thuan Pham,
• Duyen P. H. Tran,
• Xuan-Thanh Bui and
• Sheng-Jie You

Beilstein J. Nanotechnol. 2022, 13, 1141–1154, doi:10.3762/bjnano.13.96

• properties of the materials. Scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HR-TEM) were used to assess the morphology of the materials. The crystal phase of the materials was determined by X-ray diffraction (XRD) with a measurement range of 10°–80°. Fourier

• -C3N4 [55]. SEM and TEM analyses The morphology of g-C3N4, MgO, and 3%MgO@g-C3N4 has been determined through SEM and TEM analyses. The typical bulk structure of g-C3N4 is shown in Figure 5e,f. The difference between the morphologies of MgO and g-C3N4 is difficult to observe by SEM (Figure 5c,d). Figure

• degradation efficiency, (b) apparent quantum efficiency of the materials, and (c) photocatalytic recycling test of 3% MgO@g-C3N4. (a) NO conversion and (b) DeNOx index of the materials. (a) XRD patterns and (b) FTIR spectra of the materials. SEM images of (a, b) 3%MgO@g-C3N4, (c, d) MgO, and (e, f) g-C3N4. (a

Biomimetic chitosan with biocomposite nanomaterials for bone tissue repair and regeneration

• Se-Kwon Kim,
• Sesha Subramanian Murugan,
• Pandurang Appana Dalavi,
• Sebanti Gupta,
• Sukumaran Anil,
• Gi Hun Seong and
• Jayachandran Venkatesan

Beilstein J. Nanotechnol. 2022, 13, 1051–1067, doi:10.3762/bjnano.13.92

• -hydroxybutyrate) chitosan/multiwalled carbon nanotube scaffold coated with a nanobioglass–titania scaffold on bone cell regeneration was investigated. Scanning electron microscopy (SEM) examination verified the porosity of the scaffolds in the 300–700 µm range. The incorporation of chitosan into poly(3

• the scaffold was tested using simulated bodily fluids, and mineral formation (calcium and phosphorous) on the surface was analysed using SEM [58]. To achieve biofunctionality, a scaffold composed of carbon nanotubes and chitosan was fabricated via electrophoretic deposition. These hybrid composites

• were identified by fluorescence imaging. Cells adhered on nanofibers show a better cell phenotype, and this was corroborated by morphological characterisation via SEM [72] (Figure 6). Misra and colleagues developed chitosan–graphene nanocomposite scaffolds that modify cell–scaffold interactions

Spindle-like MIL101(Fe) decorated with Bi₂O₃ nanoparticles for enhanced degradation of chlortetracycline under visible-light irradiation

• Chen-chen Hao,
• Fang-yan Chen,
• Kun Bian,
• Yu-bin Tang and
• Wei-long Shi

Beilstein J. Nanotechnol. 2022, 13, 1038–1050, doi:10.3762/bjnano.13.91

• . Characterization of the as-prepared catalyst The crystalline structure of the prepared photocatalyst was analyzed by X-ray diffraction spectrometry (Empyrean, Panalytical, Holland) with Cu Kα radiation at a scanning speed of 7 °/min. The morphology of the samples was observed by scanning electron microscopy (SEM

• morphology and microstructure of Bi2O3, MIL101(Fe), and BOM-20 were observed by SEM, TEM, and HRTEM. Figure 2 shows SEM images of Bi2O3, MIL101(Fe), and BOM-20. Figure 2a reveals that MIL101(Fe) appears as an octahedron with a smooth surface and size of approx. 1–2 μm, which is consistent with a previous

• report [53]. As shown in Figure 2b, pristine Bi2O3 shows nanoparticles with diameters of approx. 10–20 nm. In the SEM image of the composite BOM-20 (Figure 2c), Bi2O3 nanoparticles are tightly attached on the surface of MIL101(Fe). Note that MIL101(Fe) in BOM-20 presents a spindle-like shape instead of

Electrocatalytic oxygen reduction activity of AgCoCu oxides on reduced graphene oxide in alkaline media

• Iyyappan Madakannu,
• Indrajit Patil,
• Bhalchandra Kakade and
• Kasibhatta Kumara Ramanatha Datta

Beilstein J. Nanotechnol. 2022, 13, 1020–1029, doi:10.3762/bjnano.13.89

• microwave-assisted approach with different fractions of Ag, Cu, and Co, that is, Ag0.6Co1.5Cu1.5 (ACC-1), Ag2.0Co1.0Cu1.0 (ACC-2), and Ag6.0Co1.0Cu1.0 (ACC-3). Our method is convenient and efficient for designing a sustainable electrode material for the ORR in alkaline media. XRD, FTIR, and SEM were used to

• analysed through scanning electron microscope (SEM). For the bimetallic NPs supported on rGO, we observe spherical and triangular particles distributed over few-layered rGO nanosheets. The uniform distribution of the bimetallic NPs over the edges and the surface of the rGO highlights the importance of the

• shown in Figure 7b. Following the stability investigation, another assessment of functional groups and morphology of ACC-2 was carried out by FTIR and SEM (Figure S11, Supporting Information File 1). There is no considerable change in the morphological integrity of the catalyst (before and after 10,000

Effects of focused electron beam irradiation parameters on direct nanostructure formation on Ag surfaces

• Jānis Sniķeris,
• Vjačeslavs Gerbreders,
• Andrejs Bulanovs and
• Ēriks Sļedevskis

Beilstein J. Nanotechnol. 2022, 13, 1004–1010, doi:10.3762/bjnano.13.87

• residual hydrocarbons by electron irradiation in scanning electron microscopy (SEM) vacuum chambers have been reported in several studies [12][13][14][15]. Hydrocarbon contamination from samples and vacuum pump oils is known to be ever present in vacuum chambers of electron microscopes [16][17][18]. The

• LiAlSi glasses [28] and TiO2 [29]. In one of our previous studies [30] we investigated the growth dynamics of nanodots on various metal surfaces (Al, Ag, Cu, Cr, and Mo) under focused EB irradiation in an SEM vacuum chamber. Similar to the previously discussed study, an influence of the surface material

• ) magnetron sputtering. The samples were fixed to the SEM stub with colloidal Ag paint. The surface of the samples was irradiated with a focused EB with controlled parameters in point mode using a Tescan MAIA3 SEM (Figure 1a). Several samples were irradiated, each time one of the irradiation parameters was

Interaction between honeybee mandibles and propolis

• Leonie Saccardi,
• Franz Brümmer,
• Jonas Schiebl,
• Oliver Schwarz,
• Alexander Kovalev and
• Stanislav Gorb

Beilstein J. Nanotechnol. 2022, 13, 958–974, doi:10.3762/bjnano.13.84

• “propolis bees”. Imaging and structural studies Bee mandibles were prepared and subsequently examined with binoculars, a scanning electron microscope (SEM), and a confocal 3D laser scanning microscope in order to identify anatomy and surface structure. Anatomy of the honeybee mandible Mandibles of all

• studied using a SEM (Hitachi S-4800, Hitachi High-Technologies Corp., Tokyo, Japan) at 3 kV accelerating voltage. Images of the spoon-shaped mandible tip were taken systematically and later assembled into one high resolution image. Higher magnified pictures were taken in characteristic areas of the

• mandible surface. For one additional experiment, instead of air-drying, four washed mandibles were dried using a critical-point-drier (Leica EM CPD300) and subsequently studied in the SEM. Surface structures on bee mandibles Surface structures on mandibles were studied in the SEM as described above