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Search for "Si" in Full Text gives 829 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Durable antimicrobial activity of fabrics functionalized with zeolite ion-exchanged nanomaterials against Staphylococcus aureus and Escherichia coli

  • Perla Sánchez-López,
  • Kendra Ramirez Acosta,
  • Sergio Fuentes Moyado,
  • Ruben Dario Cadena-Nava and
  • Elena Smolentseva

Beilstein J. Nanotechnol. 2026, 17, 262–274, doi:10.3762/bjnano.17.18

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  • of copper and zinc in the functionalized textiles analyzed by EDS was nearly four times lower in comparison with Ag/CBV-600-bramante. This may be explained by non-homogeneous loading of nanomaterials on the textile, as also evidenced by SEM images. The Si/Al molar ratio for Y zeolite was 2.7, which
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Published 06 Feb 2026

Comparative study on 3D morphologies of delignified, single tracheids and fibers of five wood species

  • Helen Gorges,
  • Felicitas von Usslar,
  • Cordt Zollfrank,
  • Silja Flenner,
  • Imke Greving,
  • Martin Müller,
  • Clemens F. Schaber,
  • Chuchu Li and
  • Stanislav N. Gorb

Beilstein J. Nanotechnol. 2026, 17, 239–250, doi:10.3762/bjnano.17.16

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  • tomography setup at the nanotomography endstation of beamline P05 of PETRA III at Deutsches Elektronen-Synchrotron (DESY). The X-ray beam was monochromatized using a Si(111) double crystal monochromator at an energy of 11 keV with a Zernike phase contrast [29]. An X-ray sCMOS camera (Hamamatsu C12849-101U
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Published 04 Feb 2026

Gold nanoparticle-decorated reduced graphene oxide as a highly effective catalyst for the selective α,β-dehydrogenation of N-alkyl-4-piperidones

  • Brenda Flore Kenyim,
  • Mihir Tzalis,
  • Marilyn Kaul,
  • Robert Oestreich,
  • Aysenur Limon,
  • Chancellin Pecheu Nkepdep and
  • Christoph Janiak

Beilstein J. Nanotechnol. 2026, 17, 218–238, doi:10.3762/bjnano.17.15

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  • 530.8 and 533.5 eV, corresponding to [SiW9O34]10− lattice oxygen and rGO surface oxygenated groups. The broadness of the higher-energy peak suggests contributions from C–O and O=C–OH groups at lower binding energies, C=O and C–OH groups at higher binding energies, and minor contributions from W–O and Si
  • –O bonds of the polyoxometalate stabilizer. These oxygen functionalities provide anchoring sites for AuNPs, enhancing their dispersion and stability on the rGO surface. No distinct Si 2p peak was observed, which can be attributed to the low surface concentration of Si and attenuation by the overlying
  • AuNPs and carbon layers. Similar behavior has been reported in other Au–polyoxometalate systems where the W signal dominates and the Si 2p peak is below detection limits [45]. Collectively, these XPS results confirm that gold is predominantly metallic (Au0) and the rGO support contains functional groups
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Published 30 Jan 2026

Functional surface engineering for cultural heritage protection: the role of superhydrophobic and superoleophobic coatings – a comprehensive review

  • Giuseppe Cesare Lama,
  • Marino Lavorgna,
  • Letizia Verdolotti,
  • Federica Recupido,
  • Giovanna Giuliana Buonocore and
  • Bharat Bhushan

Beilstein J. Nanotechnol. 2026, 17, 63–96, doi:10.3762/bjnano.17.6

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  • minimal intervention. The claimed “labyrinth effect” and the strong adhesion were due to the Si–O–metal bonds, which impeded the penetration of corrosive ions, yielding suitable properties to consider the coating for long-term heritage bronze conservation and protection (Figure 6b). Several papers have
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Published 07 Jan 2026

Quantitative estimation of nanoparticle/substrate adhesion by atomic force microscopy

  • Aydan Çiçek,
  • Markus Kratzer,
  • Christian Teichert and
  • Christian Mitterer

Beilstein J. Nanotechnol. 2026, 17, 1–14, doi:10.3762/bjnano.17.1

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  • NPs, deposited using different landing conditions, and a Si substrate. Cu NPs were synthesized via magnetron sputter inert gas condensation at different applied substrate bias voltages to vary their kinetic energy during landing at the substrate, thereby influencing their adhesion properties. AFM was
  • adhesion forces. Experimental Synthesis of Cu nanoparticles Before deposition, single-crystalline Si(100) wafer substrates, with a thickness of around 500 µm and covered by a native oxide, were cleaned in an ultrasonic bath for 10 min with ethanol, followed by rinsing with isopropanol. Then, the substrates
  • flux of the negatively charged NPs. It should be noted that also positively charged and neutral NPs contribute to the NP flux, which could not be detected by the positively charged mesh grid. Subsequently, NPs passing the QMF and the grid are deposited on the Si substrates, which are fixed on the
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Published 02 Jan 2026

Terahertz-range on-chip local oscillator based on Josephson junction arrays for superconducting quantum-limited receivers

  • Fedor V. Khan,
  • Lyudmila V. Filippenko,
  • Andrey B. Ermakov,
  • Mikhail Yu. Fominsky and
  • Valery P. Koshelets

Beilstein J. Nanotechnol. 2025, 16, 2296–2305, doi:10.3762/bjnano.16.158

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  • 9996 Nb/Si/Nb junctions was presented, capable of frequency tuning from 139 to 343 GHz, with a linewidth in the best points of less than 100 kHz. In the works by Uzawa et al. [29][36][37], generators and receivers based on one-dimensional arrays, where the JJs are spaced at λ/2, were investigated
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Published 22 Dec 2025

Electromagnetic study of a split-ring resonator metamaterial with cold-electron bolometers

  • Ekaterina A. Matrozova,
  • Alexander V. Chiginev,
  • Leonid S. Revin and
  • Andrey L. Pankratov

Beilstein J. Nanotechnol. 2025, 16, 2199–2206, doi:10.3762/bjnano.16.152

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  • incident from the H11 mode of the round waveguide port located behind the Si lens, simulating a realistic excitation source. The electric field of the incident wave is directed perpendicularly to the gaps in the receiving elements. The signal is received by an array of the proposed ring resonators. Two
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Published 05 Dec 2025

Calibration of piezo actuators and systems by dynamic interferometry

  • Knarik Khachatryan and
  • Michael Reichling

Beilstein J. Nanotechnol. 2025, 16, 2086–2091, doi:10.3762/bjnano.16.143

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  • . The slight difference between the Si values corresponding to = 0 for frozen and active loops is a result of a slight change in the interferometer alignment during about 24 h elapsed between respective measurements. The differences between both values and Sprec are even larger as the precision
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Published 17 Nov 2025

Multifrequency AFM integrating PeakForce tapping and higher eigenmodes for heterogeneous surface characterization

  • Yanping Wei,
  • Jiafeng Shen,
  • Yirong Yao,
  • Xuke Li,
  • Ming Li and
  • Peiling Ke

Beilstein J. Nanotechnol. 2025, 16, 2077–2085, doi:10.3762/bjnano.16.142

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  • aliquot was drop-cast onto a clean SiO2/Si substrate and allowed to dry under ambient conditions. Imaging parameters All critical imaging parameters for the data presented in the figures are summarized in Table 2. The free oscillation amplitudes for the higher eigenmodes were selected independently under
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Published 17 Nov 2025

Stereodiscrimination of guests in chiral organosilica aerogels studied by ESR spectroscopy

  • Sebastian Polarz,
  • Yasar Krysiak,
  • Martin Wessig and
  • Florian Kuhlmann

Beilstein J. Nanotechnol. 2025, 16, 2034–2054, doi:10.3762/bjnano.16.140

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  • were prepared accordingly [50]. For similar hydrolysis and condensation kinetics compared to the organosilane sol–gel precursors (see below), tetraisopropoxysilane (Si(OiPr)4) was used as a sol–gel precursor. After solvent exchange of the wet gel, supercritical drying with carbon dioxide delivered the
  • physisorption measurements. NHxSIL was prepared by co-condensation of tetraalkyloxysilanes (e.g., Si(OMe)4) with a second sol–gel precursor such as aminopropyltriethoxysilane (APTMS, (MeO)3SiPrNH2). One can control the amine content, x, by adjusting the ratio of the two precursors in the precursor sol. A
  • material possessing 10% amine groups will be denoted NHx=0.1SIL (see the Experimental section and Supporting Information File 1, Figure S2). Silsesquioxane compounds of the type R-Ph(Si(OiPr)3)2 with R = –COOH, –NH2, –N3, etc. have been used in our group for a long time to prepare various porous
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Published 13 Nov 2025

Laser ablation in liquids for shape-tailored synthesis of nanomaterials: status and challenges

  • Natalie Tarasenka

Beilstein J. Nanotechnol. 2025, 16, 1963–1997, doi:10.3762/bjnano.16.137

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Published 10 Nov 2025

Mechanical property measurements enabled by short-term Fourier-transform of atomic force microscopy thermal deflection analysis

  • Thomas Mathias,
  • Roland Bennewitz and
  • Philip Egberts

Beilstein J. Nanotechnol. 2025, 16, 1952–1962, doi:10.3762/bjnano.16.136

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  • data obtained from all material combinations evaluated in this study in each of the models. For example, Figure 4 shows that for soft materials, such as the Si–PDMS combination (silicon cantilever and PDMS substrate), all three models can be used to translate the oscillation frequency variation into a
  • contact stiffness. However, for harder materials, such as Si–HOPG or diamond–Si, model 1 (Figure 1a(i)) has a frequency response in the dispersion curve that saturates at a reduced frequency (f1/f0) that is lower than the measured reduced frequency. We note that the PtSi–PEO combination showed a high
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Published 06 Nov 2025

Evaluating metal-organic precursors for focused ion beam-induced deposition through solid-layer decomposition analysis

  • Benedykt R. Jany,
  • Katarzyna Madajska,
  • Aleksandra Butrymowicz-Kubiak,
  • Franciszek Krok and
  • Iwona B. Szymańska

Beilstein J. Nanotechnol. 2025, 16, 1942–1951, doi:10.3762/bjnano.16.135

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  • -organic precursors involves a series of steps that are crucial to ensure accurate and comprehensive results. These stages include: (1) Deposition of the precursor onto a Si(111) substrate through sublimation using previously established parameters [22][29][32][34]. This step allows for precise control of
  • a more in-depth understanding of the proposed pathway for successful testing of the new potential FIBID precursors. The Fabrication of the Precursor Thin Layer The metal-organic precursors films for the FIB/SEM experiments were deposited by sublimation using a glassware sublimation apparatus. The Si
  • C, O, F, and Si, as well as the Ag Lα map (see Supporting Information File 1, Figure S2–S4 for other precursors). In all cases, the maps show that the formed structures are enriched in metal. In the next step, the EDX data were processed by machine learning NMF as described in details in Jany and
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Published 04 Nov 2025

Low-temperature AFM with a microwave cavity optomechanical transducer

  • Ermes Scarano,
  • Elisabet K. Arvidsson,
  • August K. Roos,
  • Erik Holmgren,
  • Riccardo Borgani,
  • Mats O. Tholén and
  • David B. Haviland

Beilstein J. Nanotechnol. 2025, 16, 1873–1882, doi:10.3762/bjnano.16.130

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  • the thermally limited regime ≪ , where Fmin ≃ . Achieving this limit can be especially challenging at cryogenic temperatures. Heritier et al. achieved a record force sensitivity of 0.16 aN/ using a Si nanoladder with Ωm/2π = 5.5 kHz and stiffness k = 6.5 µN/m at T = 100 mK [20]. AFM usually requires
  • Si–N plate released from a Si substrate. The microwave superconducting lumped-element resonant circuit consists of an interdigital capacitor in series with a meandering nanowire inductor, both fabricated from a single layer of Nb–Ti–N deposited on the Si–N. The nanowire meanders across the clamping
  • in the literature [28][29][30]. The main limitation to the internal quality factor of our microwave resonators is the highly disordered low-stress Si–N layer, which causes significant dielectric losses [31]. As discussed above, the figure of merit of a displacement detector should be evaluated with
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Published 24 Oct 2025

Further insights into the thermodynamics of linear carbon chains for temperatures ranging from 13 to 300 K

  • Alexandre Rocha Paschoal,
  • Thiago Alves de Moura,
  • Juan S. Rodríguez-Hernández,
  • Carlos William de Araujo Paschoal,
  • Yoong Ahm Kim,
  • Morinobu Endo and
  • Paulo T. Araujo

Beilstein J. Nanotechnol. 2025, 16, 1818–1825, doi:10.3762/bjnano.16.125

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  • synthesized using arc discharge [53]. The purity of MWCNT regarding nanoparticles is ≈80% with average diameters of 10.4 nm (average length of 2.3 mm). The LCC@CNT filling ratio is ≈80% [53]. The samples were dispersed in acetone and sonicated for 2 h and then drop casted onto a Si wafer of ≈1 cm2 area. Raman
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Published 20 Oct 2025

Modeling magnetic properties of cobalt nanofilms used as a component of spin hybrid superconductor–ferromagnetic structures

  • Aleksey Fedotov,
  • Olesya Severyukhina,
  • Anastasia Salomatina and
  • Anatolie Sidorenko

Beilstein J. Nanotechnol. 2025, 16, 1557–1566, doi:10.3762/bjnano.16.110

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  • the exchange integral, the sign of which determines the type of interaction (ferromagnetic or antiferromagnetic); and si and sj are spin vectors of individual atoms. Equation 6 provides a connection between the spatial and spin degrees of freedom of the system through the exchange integral in the form
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Published 08 Sep 2025

Influence of laser beam profile on morphology and optical properties of silicon nanoparticles formed by laser ablation in liquid

  • Natalie Tarasenka,
  • Vladislav Kornev,
  • Alena Nevar and
  • Nikolai Tarasenko

Beilstein J. Nanotechnol. 2025, 16, 1533–1544, doi:10.3762/bjnano.16.108

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  • annular profile formed using a combination of an axicon and a converging lens, and a Gaussian beam focused on the surface of a Si target using the same converging lens. In all the schemes, a nanosecond Nd3+:YAG laser with a pulse duration of 10 ns operating at its fundamental harmonic (1064 nm) was used
  • morphology. The synthesized colloidal Si NPs are suggested for applications as a component of electrode materials in supercapacitors and batteries. Keywords: laser ablation; laser beams with Bessel, annular, Gaussian profiles; laser-induced modification; silicon nanoparticles; Introduction Silicon, due to
  • become an emerging field of research [3][4][5][6][7]. The expanding application areas require silicon nanomaterials of different morphologies, including quantum dots, nanowires, and nanocrystalline films. Si nanowires, for example, are considered as a promising alternative to silicon electrodes in Li-ion
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Published 04 Sep 2025

Cross-reactivities in conjugation reactions involving iron oxide nanoparticles

  • Shoronia N. Cross,
  • Katalin V. Korpany,
  • Hanine Zakaria and
  • Amy Szuchmacher Blum

Beilstein J. Nanotechnol. 2025, 16, 1504–1521, doi:10.3762/bjnano.16.106

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  • majority of the bound CySH is either coordinated to surface Fe through the amine, or possibly bound to 3,4-DHBA quinones through its thiol. The presence of a higher binding energy feature in the S 2p spectra at >166 eV is attributed to a Si 2s plasmon loss peak, derived from the Si substrate (Supporting
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Published 29 Aug 2025

Laser processing in liquids: insights into nanocolloid generation and thin film integration for energy, photonic, and sensing applications

  • Akshana Parameswaran Sreekala,
  • Pooja Raveendran Nair,
  • Jithin Kundalam Kadavath,
  • Bindu Krishnan,
  • David Avellaneda Avellaneda,
  • M. R. Anantharaman and
  • Sadasivan Shaji

Beilstein J. Nanotechnol. 2025, 16, 1428–1498, doi:10.3762/bjnano.16.104

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  • quenching, and the challenges of oxidation in nanoparticle synthesis. Cost-effective methods for modifying the surface characteristics of Si nanocrystals (Si-ncs) and BaTaOxNy perovskite particles using laser fragmentation are reported in [39] and [40], respectively. In particular, laser fragmentation in
  • water successfully alters the surface properties of Si-ncs, making them hydrophilic and improving their dispersion in aqueous solutions, while also leading to the formation of self-organized networks. However, laser fragmentation of BaTaOxNy particles resulted not only in increased surface area but also
  • the milling effect have been noted to impact particle formation and morphology (Figure 8), as evidenced by studies such as the generation of Si particles in ethanol [48]. Milling large particles into smaller ones improves their absorption properties and facilitates the formation of spherical NPs by
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Published 27 Aug 2025

Photochemical synthesis of silver nanoprisms via green LED irradiation and evaluation of SERS activity

  • Tuan Anh Mai-Ngoc,
  • Nhi Kieu Vo,
  • Cong Danh Nguyen,
  • Thi Kim Xuan Nguyen and
  • Thanh Sinh Do

Beilstein J. Nanotechnol. 2025, 16, 1417–1427, doi:10.3762/bjnano.16.103

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  • ]. The Raman spectrum of a 100 mM 4-MBA solution, recorded on a Si wafer and amplified tenfold (Figure 7b), also shows the 1088 and 1596 cm−1 peaks with lower intensity, consistent with literature reports at the same concentration and excitation wavelength of 532 nm [20]. The Raman spectrum of 4-MBA at
  • concentration of 4-MBA decreased logarithmically. Since the sample was prepared by drop casting onto a Si wafer, AgNPrs tended to aggregate, which may have led to reduced resolution of the Raman peaks at very low analyte concentrations. The relationship between 4-MBA concentration and the intensity of the 1589
  • investigated on a Si wafer surface with the 4-MBA Raman reporter. The Si wafer was cut to a size of 1 × 1 cm and treated with piranha solution (H2SO4/H2O2 = 3:1) before used to remove organic compounds. A 2 mL sample was centrifuged at 12,000 rpm for 15 min, with the supernatant discarded, and the solid
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Published 26 Aug 2025

The role of biochar in combating microplastic pollution: a bibliometric analysis in environmental contexts

  • Tuan Minh Truong Dang,
  • Thao Thu Thi Huynh,
  • Guo-Ping Chang-Chien and
  • Ha Manh Bui

Beilstein J. Nanotechnol. 2025, 16, 1401–1416, doi:10.3762/bjnano.16.102

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  • ]. These findings indicate that while different treatment models exhibit varying efficiency, the removal of nanoscale MPs predominantly depends on functional group interactions within biochar. The presence of functional groups in AZP such as C–H, C–O, C=C, N–H, Al–O, and Si–O, along with its graphite-like
  • metal–O functional groups in adsorption [43]. In contrast, the adsorption kinetics of AZP show minimal differences between PFO and PSO models, suggesting a balanced contribution from its graphene-like structure and Al–O/Si–O functional groups. The mixed first- and second-order model achieves an R2 value
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Published 21 Aug 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

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  • matrix has been reported for monometallic systems [95][97][98] and alloys [76][77], stabilizing amorphous structures and enhancing glass formation ability (GFA). In general, Si, B, P, and carbon have been reported to diffuse into metallic matrices and thus enhance the GFA, whereas carbon seems to have
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Published 17 Jul 2025

Tendency in tip polarity changes in non-contact atomic force microscopy imaging on a fluorite surface

  • Bob Kyeyune,
  • Philipp Rahe and
  • Michael Reichling

Beilstein J. Nanotechnol. 2025, 16, 944–950, doi:10.3762/bjnano.16.72

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  • distance-dependent data, the contrast mode assignment is questionable. Experimental RT experiments were performed on a bulk CaF2 crystal after preparing a clean CaF2(111) surface by cleaving the crystal in ultra-high vacuum (UHV) [23]. For the LT experiments, a CaF2/CaF/Si(111) thin film sample was used
  • . The sample was prepared in situ by first degassing a p-type Si (B-doped) sample (Institute of Electronic Materials Technology, Warsaw, Poland) for several hours after introduction into the vacuum. Second, the Si(111)-(7 × 7) termination was formed by flash annealing cycles. Third, CaF2 material (99.9
  • % purity) was deposited on the Si(111)-(7 × 7) surface from an EFM3T e-beam sublimator (Focus GmbH, Huenstetten, Germany) at substrates temperatures of 550 °C. Under these conditions, a CaF interface layer is formed, which removes the Si (7 × 7) reconstruction and allows for growing multilayers of well
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Published 26 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

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  • , Dhulapally, Secundrabad, Telangana, 500100, India Department of Chemistry, Gachon University, 1342 Seongnam‑daero, Sujeong‑gu, Seongnam‑si, Gyeonggi‑do 13120, Republic of Korea Department of Chemical and Biological Engineering, Gachon University, 1342 Seongnam-daero, Seongnam-si, Gyeonggi-do 13120, Republic
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Published 24 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

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  • 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
  • density of 6 pA·μm−2 . Before deposition, a small part of the Si substrate was gently milled with the Cs+ FIB at 16 kV, such that any native oxide and other contaminations were completely removed at this location. With that, the influence of oxygen molecules on the deposited layer can be excluded. The
  • layers, which have a length of 40 μm and a width 1 μm, were deposited across the boundary between the bare Si and the Si with its native oxide intact. A visual inspection with the SEM reveals surface bubbles on layers deposited at 2 and 5 kV (as shown in Figure 1a). No significant differences can be seen
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Published 16 Jun 2025
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