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Search for "size" in Full Text gives 1991 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Mechanical stability of individual bacterial cells under different osmotic pressure conditions: a nanoindentation study of Pseudomonas aeruginosa

  • Lizeth García-Torres,
  • Idania De Alba Montero,
  • Eleazar Samuel Kolosovas-Machuca,
  • Facundo Ruiz,
  • Sumati Bhatia,
  • Jose Luis Cuellar Camacho and
  • Jaime Ruiz-García

Beilstein J. Nanotechnol. 2025, 16, 1171–1183, doi:10.3762/bjnano.16.86

Graphical Abstract
  • estimation of the size of PA by AFM was made using the cross-section tool along both axes to obtain its length, width, and height, as shown in Figure 2A and 2B. With a resolution of 48 points or pixels per line, FV can also provide accurate morphological measurements for bacteria, as shown in the 3D
  • in AFM measurements when compared to other experimental techniques such as optical microscopy or electron microscopy. This is due to the fact that the finite size of the tip apex introduces an overestimation in the lateral dimensions of the imaged object but not of its height, where AFM excels in
  • direction of the scanning in relation to the orientation of the bacteria. Especially at the edges, the influence of the finite 3D size and angle of the AFM tip became evident because indentation can take place perpendicularly, along the longer axis of PA, or in an intermediate diagonal direction of the
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Published 21 Jul 2025

Transfer function of an asymmetric superconducting Gauss neuron

  • Fedor A. Razorenov,
  • Aleksander S. Ionin,
  • Nikita S. Shuravin,
  • Liubov N. Karelina,
  • Mikhail S. Sidel’nikov,
  • Sergey V. Egorov and
  • Vitaly V. Bol’ginov

Beilstein J. Nanotechnol. 2025, 16, 1160–1170, doi:10.3762/bjnano.16.85

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  • to direct interaction of the input and readout elements (which does not involve the neuron as a non-linear converter) as was shown in [27]. Despite the use of a superconducting screen in experiments [17][18], such an interaction can occur due to the finite size of the screen. The interaction is
  • ). Some methods of suppressing this interaction are discussed in [26]. The simplest ones include increasing the size of the screen and creating a reverse CL that is not coupled to the neuron (except screen-mediated coupling) and carries the control current in the opposite direction. Calculations show that
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Published 21 Jul 2025

Crystalline and amorphous structure selectivity of ignoble high-entropy alloy nanoparticles during laser ablation in organic liquids is set by pulse duration

  • Robert Stuckert,
  • Felix Pohl,
  • Oleg Prymak,
  • Ulrich Schürmann,
  • Christoph Rehbock,
  • Lorenz Kienle and
  • Stephan Barcikowski

Beilstein J. Nanotechnol. 2025, 16, 1141–1159, doi:10.3762/bjnano.16.84

Graphical Abstract
  • oxides [36][37], or metal electrodes [38][39], using electrostatic [37], diffusive [40], or electrophoretic [39] pathways. Additionally, in contrast to form-in-place-methods such as CTS [20], the NP size does not depend on the loading [40]. Nanoparticle generation by laser synthesis and processing of
  • solid solution fcc structure, whereas this study was more focused on the applicability in catalysis [18]. By irradiating metal chloride salts, premixed in ethanol and then added to a hexane solution with oleic acid present, Wang et al. successfully synthesized PtIrCuNiCr NPs with a narrow size
  • ]. Those rules are very high cooling rates, the presence of at least three constituting elements, atomic size differences over 12%, a significant negative heat of mixing of major elements, small material dimensions (preferably at the nanoscale, favoring high cooling rates), and post-processing effects
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Published 17 Jul 2025

Deep learning for enhancement of low-resolution and noisy scanning probe microscopy images

  • Samuel Gelman,
  • Irit Rosenhek-Goldian,
  • Nir Kampf,
  • Marek Patočka,
  • Maricarmen Rios,
  • Marcos Penedo,
  • Georg Fantner,
  • Amir Beker,
  • Sidney R. Cohen and
  • Ido Azuri

Beilstein J. Nanotechnol. 2025, 16, 1129–1140, doi:10.3762/bjnano.16.83

Graphical Abstract
  • size. In the well-established algorithm of blind reconstruction [13], “certainty maps” are provided, showing clearly where the tip does and does not measure each point. The sharper the tip relative to surface features, the more points it can access. Having said that, blind reconstruction has been used
  • to map the surface to scales below the measured image feature size by “erosion” [14]. It is also important to note that recently machine-learning based methods have been applied to blind reconstruction to reconstruct true surface images from AFM images experimentally broadened by the tip [15
  • apply traditional methods and SR deep learning models on low-resolution images and increase their resolution to a 4× scale. Increasing the resolution to the 4× scale will make the images the same size as the high-resolution GT images gathered by AFM. A computational pipeline was established to take the
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Published 16 Jul 2025

Towards a quantitative theory for transmission X-ray microscopy

  • James G. McNally,
  • Christoph Pratsch,
  • Stephan Werner,
  • Stefan Rehbein,
  • Andrew Gibbs,
  • Jihao Wang,
  • Thomas Lunkenbein,
  • Peter Guttmann and
  • Gerd Schneider

Beilstein J. Nanotechnol. 2025, 16, 1113–1128, doi:10.3762/bjnano.16.82

Graphical Abstract
  • combination of the ellipsoidal mirror and central stop produces illumination of the sample (Figure 1a) over an angular range of 0.83–1.18°. The final size of the ellipsoidal mirror’s focused spot (≈2.7 μm × 0.7 μm) is smaller than most samples, and therefore to generate an image of the sample, the focused
  • condenser and objective NA. These partially coherent models must therefore also specify the size of a coherence domain over which field amplitudes are added before computing intensities. The coherence patch size arising from our beamline illumination has not been measured in our TXM. The pc-PWE model
  • assumed that this size was small, and as discussed later, we also find that to match our acquired data, the coherence patch size must be small. Future measurements of the actual coherence patch size of our TXM will be important to determine whether the measured size matches the predictions of a small
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Published 15 Jul 2025

Influence of ion beam current on the structural, optical, and mechanical properties of TiO2 coatings: ion beam-assisted vs conventional electron beam evaporation

  • Agata Obstarczyk and
  • Urszula Wawrzaszek

Beilstein J. Nanotechnol. 2025, 16, 1097–1112, doi:10.3762/bjnano.16.81

Graphical Abstract
  • occurred for all coatings. In particular, an increase in ion beam current led to a reduction in crystallite size by approximately 30% compared to coatings prepared by conventional EBE process. The average anatase crystallite size for annealed films was in the range of 30.8 to 43.5 nm. A detailed SEM
  • which the crystallites sizes were also determined. The crystallite size was calculated using MDI Jade 5.0 software employing the Scherrer equation [32]. Thin film coatings deposited by EBE method had crystallites with an average size of 43.5 nm calculated from the (004) plane. In turn, increasing the
  • ion gun current from 3 to 4 A caused a decrease in crystallite size from 34.7 to 30.8 nm after annealing (Figure 1d). The results of the structure analysis are shown in Table 2. Based on the XRD patterns, there is no evidence for the occurrence of TiO2 with the rutile phase, as its specific peaks were
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Published 14 Jul 2025

Fabrication of metal complex phthalocyanine and porphyrin nanoparticle aqueous colloids by pulsed laser fragmentation in liquid and their potential application to a photosensitizer for photodynamic therapy

  • Taisei Himeda,
  • Risako Kunitomi,
  • Ryosuke Nabeya,
  • Tamotsu Zako and
  • Tsuyoshi Asahi

Beilstein J. Nanotechnol. 2025, 16, 1088–1096, doi:10.3762/bjnano.16.80

Graphical Abstract
  • . The nanoparticles having strong absorption in the NIR region (700 to 900 nm) were successfully prepared by PLFL, and the colloids remained stably dispersed over a period of at least one week. Particle size and size distribution determined by DLS measurements depended on the molecules. The compound
  • -dependent diameters were estimated to be 40 to 80 nm from the number-weighted size distributions by DLS measurements (see Figure S2, Supporting Information File 1). The Z-average values suggest that AlClPc and PtOEP have a narrower size distribution than FePc, CoPc, and ZnPc. In general, molecular
  • microcrystalline powder into small nanoparticles with high efficiency. The particle size was determined by dynamic light scattering measurements (Zetasizer nanoS, Malvern Instruments). In this analysis, the prepared colloids were diluted more than tenfold with ion-exchanged water. Dispersion stability Dispersion
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Published 11 Jul 2025

Single-layer graphene oxide film grown on α-Al2O3(0001) for use as an adsorbent

  • Shiro Entani,
  • Mitsunori Honda,
  • Masaru Takizawa and
  • Makoto Kohda

Beilstein J. Nanotechnol. 2025, 16, 1082–1087, doi:10.3762/bjnano.16.79

Graphical Abstract
  • (around 2900 cm−1). The presence of intense D and D+G peaks is indicative of the existence of graphene film disorder. This phenomenon can be attributed to the reduced size of the graphene grains that are produced at lower growth temperatures [18]. Following the oxidation process, a broadening of all peaks
  • and primers in addition to adsorbents, which could be investigated in future research. Experimental Growth of SLGO on α-Al2O3(0001) SLGO was grown by a method analogous to [35]. Before synthesizing SLGO, SLG was grown on an α-Al2O3(0001) substrate (size: 10 × 10 mm2, thickness: 430 µm). The substrate
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Published 10 Jul 2025

Piezoelectricity of hexagonal boron nitrides improves bone tissue generation as tested on osteoblasts

  • Sevin Adiguzel,
  • Nilay Cicek,
  • Zehra Cobandede,
  • Feray B. Misirlioglu,
  • Hulya Yilmaz and
  • Mustafa Culha

Beilstein J. Nanotechnol. 2025, 16, 1068–1081, doi:10.3762/bjnano.16.78

Graphical Abstract
  • phases exhibit ferroelectric properties, except for the cubic crystalline phase [23]. The size and crystal structure of BaTiO3 can vary based on the synthesis method. Notably, BaTiO3 holds promise as a bone-like graft and as a nano–bio interface, thanks to its excellent cytocompatibility and its positive
  • SiC surface and stored at room temperature. The synthesized hBN and commercial BaTiO3 nanoparticles (Sigma-Aldrich, Germany) were characterized using several analytical techniques. Transmission electron microscopy (TEM, JEOL ARM 200 CF, 200 keV) was employed to examine morphology and particle size by
  • -Vis-NIR) measured optical properties across the 200–800 nm range, while dynamic light scattering (DLS, Malvern Panalytical) provided data on hydrodynamic size and zeta potential after dispersing 1 mg of material in 1 mL of deionized water and sonicating for 30 min. Finally, piezoresponse force
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Published 07 Jul 2025

Soft materials nanoarchitectonics: liquid crystals, polymers, gels, biomaterials, and others

  • Katsuhiko Ariga

Beilstein J. Nanotechnol. 2025, 16, 1025–1067, doi:10.3762/bjnano.16.77

Graphical Abstract
  • such as quantum dots [95][96][97][98][99], the nanoscale of size and dimensions can result in properties that are not attainable with bulk materials. In other words, the key to developing functionality and improving properties lies in controlling the nanostructure in addition to the creation of the
  • crystal nanoarchitectonics Liquid crystals are an attractive form of soft materials, characterized by a combination of moderate fluidity and orientation [223][224][225]. They exhibit a high degree of diversity with regard to both the type of phase and the size of the regular structures. Furthermore, they
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Published 04 Jul 2025

Multifunctional properties of bio-poly(butylene succinate) reinforced with multiwalled carbon nanotubes

  • Volodymyr Krasinskyi,
  • Krzysztof Bajer,
  • Ludmila Dulebova,
  • Nickolas Polychronopoulos,
  • Oksana Krasinska and
  • Daniel Kaczor

Beilstein J. Nanotechnol. 2025, 16, 1014–1024, doi:10.3762/bjnano.16.76

Graphical Abstract
  • nm and a length of up to 40 μm (Figure 1b). The microstructure of PBS/CNT_10 (Figure 1c) and PBS/CNT_0.5 (Figure 1d) samples is quite similar. In the SEM images of both samples, small white inclusions (nanotubes) ranging from 24 to 200 nm in size are evenly distributed over the surface. On the
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Published 03 Jul 2025

A calix[4]arene-based supramolecular nanoassembly targeting cancer cells and triggering the release of nitric oxide with green light

  • Cristina Parisi,
  • Loredana Ferreri,
  • Tassia J. Martins,
  • Francesca Laneri,
  • Samantha Sollima,
  • Antonina Azzolina,
  • Antonella Cusimano,
  • Nicola D’Antona,
  • Grazia M. L. Consoli and
  • Salvatore Sortino

Beilstein J. Nanotechnol. 2025, 16, 1003–1013, doi:10.3762/bjnano.16.75

Graphical Abstract
  • inset shows the size distribution of the same solution of 1 obtained by DLS. (B) Fluorescence emission spectrum, λexc = 467 nm, of 1 as in (A). The inset shows the fluorescence decay and the related fitting of the same solutions recorded at λexc = 455 nm and λem = 550 nm. T = 25 °C. Cell viability
  • observed upon exposure of an air-equilibrated NOPD 2 (100 µM) solution at λexc = 420 nm after 0, 6, 11, 20, 30, 40, 60, 80, 100, 130, and 160 min. (A) Absorption spectrum of the supramolecular complex 1·2 in water; [1] = 50 µM; [2] = 40 µM. The inset shows the size distribution of the same solution of 1·2
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Published 03 Jul 2025

Time-resolved probing of laser-induced nanostructuring processes in liquids

  • Maximilian Spellauge,
  • David Redka,
  • Mianzhen Mo,
  • Changyong Song,
  • Heinz Paul Huber and
  • Anton Plech

Beilstein J. Nanotechnol. 2025, 16, 968–1002, doi:10.3762/bjnano.16.74

Graphical Abstract
  • ][12][13], as well as laser fusion or laser melting in liquid (LML) [14][15]. The latter is used to achieve the opposite effect of increasing particle size with the aim for high quality in shape or size. The presence of a liquid in laser processing, on the one hand, has practical advantages, such as
  • -crystalline samples, which lack nucleation sites. Thus, a transient overheating above the melting point could even take place, which lasts for 100 to 200 ps. On longer timescales, heat dissipation can set in during the heating with nanosecond or longer pulses. Heat dissipation in small NPs is strongly size
  • the transient absorption technique was nicely demonstrated in a work by Hu et al. [87], in which they measured solvated NPs of varying sizes and determined the effect of size on the rate of energy relaxation. As shown in Figure 7A, the transient bleach results for larger NPs showed two distinct decay
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Published 02 Jul 2025

Shape, membrane morphology, and morphodynamic response of metabolically active human mitochondria revealed by scanning ion conductance microscopy

  • Eric Lieberwirth,
  • Anja Schaeper,
  • Regina Lange,
  • Ingo Barke,
  • Simone Baltrusch and
  • Sylvia Speller

Beilstein J. Nanotechnol. 2025, 16, 951–967, doi:10.3762/bjnano.16.73

Graphical Abstract
  •  3c. The average values of apparent height, diameter, and volume are compared. Irregular mitochondria tend to be smaller with reduced statistical significance (Welch’s t-test). The size distribution of metabolically active mitochondria is bimodal, that is, diameters predominantly fell into two
  • difference in average mitochondrial volume (p < 0.001, Welch’s t-test). Edge memory effect Metabolically active mitochondria possess the ability to respond to external stimuli. In cells, these responses are reflected in alterations to the shape, size, and number of the mitochondria, which in turn influence
  • stability contrasts with the structural alterations reported with more violent techniques, such as deformability cytometry [37]. For mitochondria isolated using the nitrogen cavitation method, fixed mitochondria exhibit significantly smaller dimensions (Figure 4b). The reduction in size can be explained by
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Published 30 Jun 2025

Synthesis of biowaste-derived carbon-dot-mediated silver nanoparticles and the evaluation of electrochemical properties for supercapacitor electrodes

  • Navya Kumari Tenkayala,
  • Chandan Kumar Maity,
  • Md Moniruzzaman and
  • Subramani Devaraju

Beilstein J. Nanotechnol. 2025, 16, 933–943, doi:10.3762/bjnano.16.71

Graphical Abstract
  • environmentally friendly as CDs play a role as capping, reducing, and stabilizing agent without addition of any chemicals. PG-CDs-AgNPs showed a particle size of 10 nm having excellent fluorescence emission in the blue region, and it has been explored as an electrode material for supercapacitor applications. The
  • the solution to brownish black. The gradual increase in the peak intensity without any spectral shift of absorption maxima (λmax) suggests that with increasing reaction time uniform-size stable nanoparticles were formed [27]. The excitation–wavelength-dependent emission spectra of the as-synthesized
  • distribution of PG-CDs-AgNPs was responsible for the enhanced surface area [35]. The pore size distribution plot of PG-CDs-AgNPs suggests the mesoporous characteristics (Supporting Information File 1, Figure S1b), which, via the diffusion of electrolyte ions, is highly efficient for electrochemical charge
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Published 24 Jun 2025

Structural and magnetic properties of microwave-synthesized reduced graphene oxide/VO2/Fe2O3 nanocomposite

  • Sumanta Sahoo,
  • Ankur Sood and
  • Sung Soo Han

Beilstein J. Nanotechnol. 2025, 16, 921–932, doi:10.3762/bjnano.16.70

Graphical Abstract
  • ) was visible on the thin rGO surfaces. Notably, a clear difference between the size of Fe2O3 NPs (average particle diameter – 8.1 ± 2.2 nm) and VO2 NSs (average particle diameter – 34 ± 5.2 nm) indicates the formation of these two different types of metal oxides on top of the rGO nanosheets (Figure 8e
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Published 20 Jun 2025

Focused ion beam-induced platinum deposition with a low-temperature cesium ion source

  • Thomas Henning Loeber,
  • Bert Laegel,
  • Meltem Sezen,
  • Feray Bakan Misirlioglu,
  • Edgar J. D. Vredenbregt and
  • Yang Li

Beilstein J. Nanotechnol. 2025, 16, 910–920, doi:10.3762/bjnano.16.69

Graphical Abstract
  • nozzle kept about 100 μm above the sample surface. The chamber pressure of the Cs+ and the Ga+ FIB was about 5 × 10−7 mbar before deposition and 8 × 10−6 mbar during deposition. For Pt deposition, a beam step size of −150% of the beam diameter was used with an upper limit of 200 nm for the Cs FIBID to
  • avoid, for example, any inhomogeneous ripple structures. The dwell time was always 200 ns. For growth rate characterization, Pt layers with a length of 20 μm and a width of 1 μm were deposited on silicon (Si). The ion beam currents were changed, while the pattern size was kept constant. With the Cs+ FIB
  •  8a. The pattern size was 35 μm by 1.5 μm. The deposition time was varied with the ion beam current and the acceleration voltage to achieve a constant layer thickness of approximately 1000 nm. With the Ga+ FIB, ion beam currents between 30 and 630 pA were used, so the current densities ranged from 0.9
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Published 16 Jun 2025

Characterization of ion track-etched conical nanopores in thermal and PECVD SiO2 using small angle X-ray scattering

  • Shankar Dutt,
  • Rudradeep Chakraborty,
  • Christian Notthoff,
  • Pablo Mota-Santiago,
  • Christina Trautmann and
  • Patrick Kluth

Beilstein J. Nanotechnol. 2025, 16, 899–909, doi:10.3762/bjnano.16.68

Graphical Abstract
  • , and nanofluidic applications. The characterization of the pore morphology and size distribution, along with its dependence on the material properties and fabrication parameters, is crucial to designing nanopore systems for specific applications. Here, we present a comprehensive study of track-etched
  • analyzing the complex highly anisotropic two-dimensional SAXS patterns of the pores by reducing the analysis to two orthogonal one-dimensional slices of the data. The simultaneous fit of the data enables an accurate determination of the pore geometry and size distribution. The analysis reveals substantial
  • differences between the nanopores in thermal and PECVD SiO2. The track-to-bulk etching rate ratio is significantly different for the two materials, producing nanopores with cone angles that differ by almost a factor of two. Furthermore, thermal SiO2 exhibits an exceptionally narrow size distribution of only 2
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Published 12 Jun 2025

Heat-induced transformation of nickel-coated polycrystalline diamond film studied in situ by XPS and NEXAFS

  • Olga V. Sedelnikova,
  • Yuliya V. Fedoseeva,
  • Dmitriy V. Gorodetskiy,
  • Yuri N. Palyanov,
  • Elena V. Shlyakhova,
  • Eugene A. Maksimovskiy,
  • Anna A. Makarova,
  • Lyubov G. Bulusheva and
  • Aleksandr V. Okotrub

Beilstein J. Nanotechnol. 2025, 16, 887–898, doi:10.3762/bjnano.16.67

Graphical Abstract
  • the vacuum chamber for further SEM and Raman analysis under ambient conditions. Figure 4 shows SEM images of some large crystallites of about 100 μm in size on the surfaces of the annealed PCD and Ni-PCD. These crystallites have well-defined triangular (111) faces and truncated rectangular faces
  • on the crystallographic orientation of the diamond surface, and is mainly determined by the annealing temperature. On the other hand, the defectiveness of the sp2 layers is influenced by the crystallite size and the presence of intrinsic structural defects in the diamond. Orientation of graphitic
  • higher intensity of the π*(sp2)-resonance in the NEXAFS C K-edge spectrum, this suggests that the defectiveness of the formed sp2-hybridized carbon layers decreases as the size of the annealed diamond face increases. For the annealed Ni-SCD sample, the spectra were measured at angles of 90° and 50
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Published 12 Jun 2025

Ar+ implantation-induced tailoring of RF-sputtered ZnO films: structural, morphological, and optical properties

  • Manu Bura,
  • Divya Gupta,
  • Arun Kumar and
  • Sanjeev Aggarwal

Beilstein J. Nanotechnol. 2025, 16, 872–886, doi:10.3762/bjnano.16.66

Graphical Abstract
  • in grazing incidence angle X-ray diffraction patterns. Atomic force microscopy images show grain size reduction and a fall in the surface roughness value of films after implantation. The implantation-induced structural modifications are further correlated with the variation in diffuse reflectance
  • foreign ions in the ZnO film lattice can create an impact on its surface roughness and particle size. Previous reports available discuss the implantation-induced optical longitudinal phonon symmetry in ZnO films using heavy ions with high energy and low implantation fluences [12][13][14][15]. Singh et al
  • were implanted with 30 keV Ar+ at fluences varying from 1 × 1015 to 2 × 1016 ions·cm−2. Surface variables (roughness and particle size), structural variables (crystallite size and dislocation density), and optical properties (diffuse reflectance, Urbach energy, and optical bandgap) were studied in
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Published 11 Jun 2025

Insights into the electronic and atomic structures of cerium oxide-based ultrathin films and nanostructures using high-brilliance light sources

  • Paola Luches and
  • Federico Boscherini

Beilstein J. Nanotechnol. 2025, 16, 860–871, doi:10.3762/bjnano.16.65

Graphical Abstract
  • its sensitivity, the method, when combined with other techniques, has provided quantitative information on the number of electrons transferred per particle to the support (Figure 2), enabling the optimization of the size of the supported active Pt catalyst [27]. This is a crucial factor in minimizing
  • supporting oxide was found to decrease with decreasing NP size [53], possibly due to a stronger interaction between Ag and cerium oxide in smaller NPs, resulting from a greater charge transfer per atom [54]. A further possibility offered by synchrotrons is to measure spatially resolved Ce M-edge absorption
  • spectra in photoemission electron microscopy (PEEM) mode, in which the photon energy is scanned across the XAS edge and the intensity of the secondary electrons is detected using a PEEM. This allowed to image the shape and size of ceria nanoislands on Ru(0001) and to probe and compare the oxidation state
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Published 10 Jun 2025

Synchrotron X-ray photoelectron spectroscopy study of sodium adsorption on vertically arranged MoS2 layers coated with pyrolytic carbon

  • Alexander V. Okotrub,
  • Anastasiya D. Fedorenko,
  • Anna A. Makarova,
  • Veronica S. Sulyaeva,
  • Yuliya V. Fedoseeva and
  • Lyubov G. Bulusheva

Beilstein J. Nanotechnol. 2025, 16, 847–859, doi:10.3762/bjnano.16.64

Graphical Abstract
  • surface correspond to Pt nanoparticles, the presence of which is confirmed by energy-dispersive X-ray (EDX) spectroscopy (Supporting Information File 1, Figure S1). These nanoparticles have a uniform size and are densely distributed on the sample surface, in contrast to the polysulfide particles of
  • confirms the vertical orientation of the MoS2 layers relative to the substrate surface [37]. The weak defect-induced mode LA(M) at 227 cm−1 and the asymmetric shape of the E12g and A1g modes indicate the nanometer size of the MoS2 crystallites in the plane [38][39]. All the above modes are visible in the
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Published 10 Jun 2025

Synthesis and magnetic transitions of rare-earth-free Fe–Mn–Ni–Si-based compositionally complex alloys at bulk and nanoscale

  • Shabbir Tahir,
  • Tatiana Smoliarova,
  • Carlos Doñate-Buendía,
  • Michael Farle,
  • Natalia Shkodich and
  • Bilal Gökce

Beilstein J. Nanotechnol. 2025, 16, 823–836, doi:10.3762/bjnano.16.62

Graphical Abstract
  • for Ge-based CCA and Tc = 263 K for Al-based CCA. At the nanoscale, both Ge- and Al-based NPs exhibit superparamagnetic behaviour, with blocking temperatures of TB ≈ 120 K for Ge-based NPs (xc = 13.4 ± 15.5 nm, average particle size) and TB ≈ 100 K for Al-based NPs (xc = 18.4 ± 9.1 nm, average
  • particle size), demonstrating the intrinsic superparamagnetic nature of NPs. While the Ge-based CCA demonstrates almost twice the saturation magnetization (Ms) and ≈20% lower hysteresis (Hc) in bulk form, the Al-based CCA exhibits comparable Ms and ≈45% lower Hc at the nanoscale at 5 K. These results
  • 2.8 J·cm−2 [41]. Additionally, to increase the NP concentration and reduce the organic solvent use, a closed loop liquid flow system was employed. Size distribution, morphology, elemental composition, and crystal structure of the NPs from both CCA targets were examined using transmission electron
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Published 05 Jun 2025

Supramolecular hydration structure of graphene-based hydrogels: density functional theory, green chemistry and interface application

  • Hon Nhien Le,
  • Duy Khanh Nguyen,
  • Minh Triet Dang,
  • Huyen Trinh Nguyen,
  • Thi Bang Tam Dao,
  • Trung Do Nguyen,
  • Chi Nhan Ha Thuc and
  • Van Hieu Le

Beilstein J. Nanotechnol. 2025, 16, 806–822, doi:10.3762/bjnano.16.61

Graphical Abstract
  • nanosheets agglomerated and stacked together to form big particles (size of hundreds of micrometers, Figure 3e). The GO-SG-ZH particles had low porosity or small spacing between graphene-based nanosheets (Figure 3f). Besides, the GO-SG-ZH hydrogel was spread on a carbon tape and dehydrated for SEM imaging
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Published 04 Jun 2025

Morphology and properties of pyrite nanoparticles obtained by pulsed laser ablation in liquid and thin films for photodetection

  • Akshana Parameswaran Sreekala,
  • Bindu Krishnan,
  • Rene Fabian Cienfuegos Pelaes,
  • David Avellaneda Avellaneda,
  • Josué Amílcar Aguilar-Martínez and
  • Sadasivan Shaji

Beilstein J. Nanotechnol. 2025, 16, 785–805, doi:10.3762/bjnano.16.60

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  • is that the productivity and morphology/size of the NPs generated can be regulated by carefully managing the input parameters [16]. Due to the challenges in obtaining phase-pure FeS2 by PLAL, this is a much less explored material despite its high potential. A strong reducible ferric ion and an
  • such properties [31]. For instance, it has been demonstrated that the wavelength-shifting characteristics of Si nanoparticles were caused by the effects of quantum-size confinement. The bandgap of silicon increased from its typical 1.1 eV in elemental form to nearly 3 eV in nanoparticle form, enhancing
  • number of benefits, including small size, light weight, affordable price, low power consumption, high photoresponsivity, quick response, and most importantly, it independently operates without an external power supply and relies on the built-in potential, which helps to save energy [33]. Moreover, self
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Published 03 Jun 2025
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