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Search for "interactions" in Full Text gives 1138 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Unveiling the potential of alginate-based nanomaterials in sensing technology and smart delivery applications

  • Shakhzodjon Uzokboev,
  • Khojimukhammad Akhmadbekov,
  • Ra’no Nuritdinova,
  • Salah M. Tawfik and
  • Yong-Ill Lee

Beilstein J. Nanotechnol. 2024, 15, 1077–1104, doi:10.3762/bjnano.15.88

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  • solvent using the Doppler approach, which measures particle velocity as a function of voltage. The determination of the zeta potential is crucial in understanding the mechanism of drug–nanoparticle interactions [66]. In addition to the methods described above, Fourier-transform infrared spectroscopy is
  • modified alginate materials for mucoadhesive drug delivery. Scientists combined the alginate hydroxy groups with maleimid-terminated PEG. This novel mucoadhesive biopolymer exhibited polymer–mucus glycoprotein interactions. The results showed that the new alginate-based mucoadhesive matrix can enhance the
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Published 22 Aug 2024

Effect of wavelength and liquid on formation of Ag, Au, Ag/Au nanoparticles via picosecond laser ablation and SERS-based detection of DMMP

  • Sree Satya Bharati Moram,
  • Chandu Byram and
  • Venugopal Rao Soma

Beilstein J. Nanotechnol. 2024, 15, 1054–1069, doi:10.3762/bjnano.15.86

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  • material with the incoming beam, including absorption, reflection, and scattering [47][48]. These interactions significantly vary across the wavelengths from 1064 down to 355 nm, with a unique response of different materials at each wavelength [49]. A key to enhancing the yield is choosing the laser
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Published 19 Aug 2024

Interface properties of nanostructured carbon-coated biological implants: an overview

  • Mattia Bartoli,
  • Francesca Cardano,
  • Erik Piatti,
  • Stefania Lettieri,
  • Andrea Fin and
  • Alberto Tagliaferro

Beilstein J. Nanotechnol. 2024, 15, 1041–1053, doi:10.3762/bjnano.15.85

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  • nanostructured carbon coatings (nanodiamonds, carbon nanotubes, and graphene-related materials) for the improvement of the overall properties of medical implants. We are focusing on biological interactions, improved corrosion resistance, and overall mechanical properties, trying to provide a complete overview
  • environment is a dynamic and complex area, where several biological, physical, and chemical interactions can take place simultaneously, including immunological response [27], mechanical mismatch with the tissue [28], degradation [29], responses to stimuli [30], and proliferation of bacteria [31]. In the next
  • they still remain far below those of graphene. Last, GO and rGO show good interactions with polymeric matrices thanks to specific surface functionalizations [51]. Carbon nanotubes CNTs are an allotropic state of carbon discovered in the middle of the 20th century [52][53][54][55], which became famous
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Published 16 Aug 2024

Entry of nanoparticles into cells and tissues: status and challenges

  • Kirsten Sandvig,
  • Tore Geir Iversen and
  • Tore Skotland

Beilstein J. Nanotechnol. 2024, 15, 1017–1029, doi:10.3762/bjnano.15.83

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  • studies, and transport in vivo also holds true for these particles. We will start by describing the status and challenges when it comes to cellular uptake mechanisms, and in the last part discuss interactions of NPs with tissues and biodistribution of these particles. Endocytic Pathways Involved in
  • proteins, including dominant-negative mutants, may, due to their high concentration, facilitate low-affinity interactions with partner proteins that they normally would not bind to. Furthermore, we have the challenge that a given molecule can be involved in more than one pathway. For instance, cdc42 is
  • (Kupffer cells, i.e., the liver macrophages, liver sinusoidal endothelial cells (LSEC), and hepatocytes) in NP uptake [81]. A very recent study points to the importance of interactions between PEG-NPs with (apo)lipoproteins and scavenger receptors, and postulates that the high presence of these receptors
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Published 12 Aug 2024

Can neutral clusters: a two-step G0W0 and DFT benchmark

  • Sunila Bakhsh,
  • Sameen Aslam,
  • Muhammad Khalid,
  • Muhammad Sohail,
  • Sundas Zafar,
  • Sumayya Abdul Wadood,
  • Kareem Morsy and
  • Muhammad Aamir Iqbal

Beilstein J. Nanotechnol. 2024, 15, 1010–1016, doi:10.3762/bjnano.15.82

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  • calcium clusters. This may suggest that the electron interactions in such clusters are more localized compared to the delocalized electron sea assumed in the Jellium model. Another remarkable aspect of the cluster studies is to understand whether there is an underlying correlation between the ionization
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Published 08 Aug 2024

Atomistic insights into the morphological dynamics of gold and platinum nanoparticles: MD simulations in vacuum and aqueous media

  • Evangelos Voyiatzis,
  • Eugenia Valsami-Jones and
  • Antreas Afantitis

Beilstein J. Nanotechnol. 2024, 15, 995–1009, doi:10.3762/bjnano.15.81

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  • their energy interactions. The morphological changes in the NPs are measured using both atomic parameters, such as the coordination number and the Berry parameter, and cluster parameters, such as the X-ray powder diffraction pattern and the asphericity parameter. Furthermore, we extract qualitative
  • information regarding the toxicity and reactivity of these NPs by monitoring the behaviour of nano-descriptors commonly employed in quantitative structure–activity relationship (QSAR) models and by measuring the water–NP energetic interactions. The extracted information from our simulations complements
  • ] nanostructures. We also simulated Au and Pt NPs in aqueous solutions at 300 K, that is, close to room temperature. The interactions among the water molecules are described by the SPC/E model [66]. The interactions among the water molecules and the Au (Pt) atoms are calculated by the force field of Merabia et al
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Published 07 Aug 2024

Beyond biomimicry – next generation applications of bioinspired adhesives from microfluidics to composites

  • Dan Sameoto

Beilstein J. Nanotechnol. 2024, 15, 965–976, doi:10.3762/bjnano.15.79

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  • compliant and, thus, compatible with collaborative robotics, wearable components, and relatively safe human–robot interactions, which potentially provides a unique capability compared to traditional rigid robotics. However, there is a trade-off in soft robotics between the compliance of the material and the
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Published 05 Aug 2024

Identification of structural features of surface modifiers in engineered nanostructured metal oxides regarding cell uptake through ML-based classification

  • Indrasis Dasgupta,
  • Totan Das,
  • Biplab Das and
  • Shovanlal Gayen

Beilstein J. Nanotechnol. 2024, 15, 909–924, doi:10.3762/bjnano.15.75

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  • bond donors present in a molecule [50]. Hydrogen bonds play an important role in interactions between molecules in various biological processes. However, for cellular uptake in the PaCa2 cell line, the contribution of hydrogen bonds has a negative impact as shown in Figure 7. A higher value of
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Published 22 Jul 2024

Facile synthesis of Fe-based metal–organic frameworks from Fe2O3 nanoparticles and their application for CO2/N2 separation

  • Van Nhieu Le,
  • Hoai Duc Tran,
  • Minh Tien Nguyen,
  • Hai Bang Truong,
  • Toan Minh Pham and
  • Jinsoo Kim

Beilstein J. Nanotechnol. 2024, 15, 897–908, doi:10.3762/bjnano.15.74

Graphical Abstract
  • surface area (Table 1). It is well known that the MIL-100(Fe) framework contains an abundance of active sites, including unsaturated metal sites, and –OH and free –COOH groups, which perhaps form adsorptive interactions with CO2 molecules [32]. Consequently, the samples showed outstanding CO2 uptake in
  • ), the CO2 uptake was proportional to the pressure and inversely proportional to temperature, suggesting that adsorptive interactions based on physical bonds took place between CO2 molecules and M-100Fe@Fe2O3#1.80 [31][37]. To support this assertion, the Clausius–Clayperon equation was employed to
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Published 19 Jul 2024

Synthesis of silver–palladium Janus nanoparticles using co-sputtering of independent sources: experimental and theorical study

  • Maria J. Martínez-Carreón,
  • Francisco Solís-Pomar,
  • Abel Fundora,
  • Claudio D. Gutiérrez-Lazos,
  • Sergio Mejía-Rosales,
  • Hector N. Fernández-Escamilla,
  • Jonathan Guerrero-Sánchez,
  • Manuel F. Meléndrez and
  • Eduardo Pérez-Tijerina

Beilstein J. Nanotechnol. 2024, 15, 808–816, doi:10.3762/bjnano.15.67

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  • that present two faces or regions with different chemical or physical properties in a single particle. Their compositional asymmetry can lead to interesting interactions with their environment or other materials, which give them properties and potential applications that homogeneous nanoparticles do
  • not have. For instance, the distinct sides of Janus nanoparticles can be functionalized with different surface chemistries, allowing for controlled interactions with different molecules, surfaces, or biological entities; this feature may be particularly useful in applications as diverse as drug
  • K, using the DL_POLY 4 code [14]. The time step was set to 0.001 ps, for a total simulation time of 0.5 ns. The atomic interactions were modelled using the Sutton–Chen potential, with the parameters obtained by Çağin et al. [15], and the mixing rules of Rafii-Tabar and Sutton were used to define the
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Published 04 Jul 2024

Electron-induced ligand loss from iron tetracarbonyl methyl acrylate

  • Hlib Lyshchuk,
  • Atul Chaudhary,
  • Thomas F. M. Luxford,
  • Miloš Ranković,
  • Jaroslav Kočišek,
  • Juraj Fedor,
  • Lisa McElwee-White and
  • Pamir Nag

Beilstein J. Nanotechnol. 2024, 15, 797–807, doi:10.3762/bjnano.15.66

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  • dipole moment of 1.72 Debye. We thus presume that, also in the present case, the high DEA cross section close to 0 eV is mediated by long-range electron–precursor interactions to a large extent. For higher electron energies, the resonance structures in Fe(CO)5 and Fe(CO)4MA are very similar. There is the
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Published 03 Jul 2024

Exploring surface charge dynamics: implications for AFM height measurements in 2D materials

  • Mario Navarro-Rodriguez,
  • Andres M. Somoza and
  • Elisa Palacios-Lidon

Beilstein J. Nanotechnol. 2024, 15, 767–780, doi:10.3762/bjnano.15.64

Graphical Abstract
  • the dissipation. In this mode, the amplitude reduction may be due to (i) the tip–sample interaction (conservative or non-conservative), which shifts the resonance frequency and, therefore, makes the excitation go out of resonance, (ii) non-conservative interactions, which dissipate parts of the
  • sample [38][39][40][41], or to typically electrostatic conservative forces [42]. In the latter case, using KPFM to minimize these forces mitigates the problem. Finally, if the driving excitation frequency is tracked to follow the resonance frequency shift induced by the tip–sample interactions, the
  • system is always excited at resonance. Then, the amplitude is reduced because of non-conservative forces only, and topography images can be understood as constant-dissipation images [43]. Larger dissipative interactions necessitate the tip to retract further from the surface to maintain a constant
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Published 01 Jul 2024

Simultaneous electrochemical determination of uric acid and hypoxanthine at a TiO2/graphene quantum dot-modified electrode

  • Vu Ngoc Hoang,
  • Dang Thi Ngoc Hoa,
  • Nguyen Quang Man,
  • Le Vu Truong Son,
  • Le Van Thanh Son,
  • Vo Thang Nguyen,
  • Le Thi Hong Phong,
  • Ly Hoang Diem,
  • Kieu Chan Ly,
  • Ho Sy Thang and
  • Dinh Quang Khieu

Beilstein J. Nanotechnol. 2024, 15, 719–732, doi:10.3762/bjnano.15.60

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  • with pKa = 8.7 [31]. The improved reversibility and sensitivity of the modified electrode may be due to the electrostatic interaction between positively charged URI and HYP and negatively charged GQD at remaining COO− groups, the complexation of titanium to nitrogen or oxygen, or π–π interactions
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Published 20 Jun 2024

Functional fibrillar interfaces: Biological hair as inspiration across scales

  • Guillermo J. Amador,
  • Brett Klaassen van Oorschot,
  • Caiying Liao,
  • Jianing Wu and
  • Da Wei

Beilstein J. Nanotechnol. 2024, 15, 664–677, doi:10.3762/bjnano.15.55

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  • bodies of mammals, over trichomes of plants, to the mastigonemes on the flagella of single-celled organisms. While these long and slender protuberances are passive, they are multifunctional and help to mediate interactions with the environment. They provide thermal insulation, sensory information
  • length scales. Keywords: adhesion; fibers; fluid–structure interactions; mastigonemes; mechanosensing; setae; wettability; Introduction Given the bottom-up approach that biology uses to create materials, fibrous structures formed by molecular chains are found everywhere. For example, internally in the
  • not lessen their importance. They play a crucial role in mediating an organism’s interactions with the environment, serving various functions depending on their deformations, which are driven purely by their surroundings. Altogether, following the definition above, the structures covered in this
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Published 06 Jun 2024

Laser synthesis of nanoparticles in organic solvents – products, reactions, and perspectives

  • Theo Fromme,
  • Sven Reichenberger,
  • Katharine M. Tibbetts and
  • Stephan Barcikowski

Beilstein J. Nanotechnol. 2024, 15, 638–663, doi:10.3762/bjnano.15.54

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  • as water and even aqueous solutes. Thus, this model formed the basis that enabled the derivation of yield functions for a variety of direct electron-mediated DNA damage pathways and indirect damage by •OH radicals resulting from laser and electron interactions with water [85]. In general, LSPC in
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Published 05 Jun 2024

Directed growth of quinacridone chains on the vicinal Ag(35 1 1) surface

  • Niklas Humberg,
  • Lukas Grönwoldt and
  • Moritz Sokolowski

Beilstein J. Nanotechnol. 2024, 15, 556–568, doi:10.3762/bjnano.15.48

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  • –24873]. The vicinal surface leads to one additional chain orientation, which is parallel to the Ag step edges. However, most chains nucleate on the Ag terraces between steps with four distinct azimuthal orientations that are identical to those on Ag(100), and which are determined by the interactions
  • step edges. Keywords: Ag(100); intermolecular hydrogen bonds; one-dimensional aggregates; organic nanostructures; quinacridone; step-molecule interactions; vicinal surface; Introduction A versatile and powerful method to create nanostructures on surfaces is the self-assembly of atoms and molecules
  • , which can be used to direct the growth of nanostructures of adsorbates. The adsorption at step edges, as opposed to that on the terraces in between, is often favored because the additional interactions between the adsorbate and the atoms of the step edge contribute to the adsorption energy Eads. This
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Published 21 May 2024

Heat-induced morphological changes in silver nanowires deposited on a patterned silicon substrate

  • Elyad Damerchi,
  • Sven Oras,
  • Edgars Butanovs,
  • Allar Liivlaid,
  • Mikk Antsov,
  • Boris Polyakov,
  • Annamarija Trausa,
  • Veronika Zadin,
  • Andreas Kyritsakis,
  • Loïc Vidal,
  • Karine Mougin,
  • Siim Pikker and
  • Sergei Vlassov

Beilstein J. Nanotechnol. 2024, 15, 435–446, doi:10.3762/bjnano.15.39

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  •  1. Molecular dynamics simulations were performed with the large-scale atomic/molecular massively parallel simulator (LAMMPS) [40]. Interactions between the atoms were governed by the embedded atom method (EAM) potential [41] for silver atoms. Visualization was performed with the Open Visualization
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Published 22 Apr 2024

Classification and application of metal-based nanoantioxidants in medicine and healthcare

  • Nguyen Nhat Nam,
  • Nguyen Khoi Song Tran,
  • Tan Tai Nguyen,
  • Nguyen Ngoc Trai,
  • Nguyen Phuong Thuy,
  • Hoang Dang Khoa Do,
  • Nhu Hoa Thi Tran and
  • Kieu The Loan Trinh

Beilstein J. Nanotechnol. 2024, 15, 396–415, doi:10.3762/bjnano.15.36

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  • interactions leading to toxic effects. Therefore, health and safety profiles of metal-based nanoantioxidants need to be provided. Second, metal-based nanoantioxidants have very diverse shapes, sizes, and surface functional groups. However, modifying these factors significantly changes the way metal-based
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Published 12 Apr 2024

Modulated critical currents of spin-transfer torque-induced resistance changes in NiCu/Cu multilayered nanowires

  • Mengqi Fu,
  • Roman Hartmann,
  • Julian Braun,
  • Sergej Andreev,
  • Torsten Pietsch and
  • Elke Scheer

Beilstein J. Nanotechnol. 2024, 15, 360–366, doi:10.3762/bjnano.15.32

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  • thickness of the Cu spacer layers largely influences the interactions, such as the exchange energy between neighboring magnetic layers [24][26], and further increases the sequential changes of the magnetization direction of the different magnetic layers during the magnetic field sweep. Therefore, when the
  • of the dipolar interactions among nanowires, VSM measurements for the electrodeposited nanowire arrays in AAO template, and a discussion on the wire-to-wire variation. Supporting Information File 70: Additional experimental data. Acknowledgements The authors acknowledge the use of the experimental
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Published 03 Apr 2024

Nanomedicines against Chagas disease: a critical review

  • Maria Jose Morilla,
  • Kajal Ghosal and
  • Eder Lilia Romero

Beilstein J. Nanotechnol. 2024, 15, 333–349, doi:10.3762/bjnano.15.30

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  • -II drugs with low solubility, or low or irregular bioavailability, and promoting adhesion to the gastrointestinal wall [95]. The small size of the crystals is associated with a large surface area, which increases interactions with the dissolving medium and accelerates the dissolution rate. The latest
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Published 27 Mar 2024

Vinorelbine-loaded multifunctional magnetic nanoparticles as anticancer drug delivery systems: synthesis, characterization, and in vitro release study

  • Zeynep Özcan and
  • Afife Binnaz Hazar Yoruç

Beilstein J. Nanotechnol. 2024, 15, 256–269, doi:10.3762/bjnano.15.24

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  • affinities for the drug molecule at different pH values. Hence, the observed differences in drug release profiles between pH 5.5 and 7.4 can be plausibly attributed to these pH-dependent interactions [57]. Factors such as pH value, coating material properties, coating thickness, and drug binding capacity
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Published 28 Feb 2024

Multiscale modelling of biomolecular corona formation on metallic surfaces

  • Parinaz Mosaddeghi Amini,
  • Ian Rouse,
  • Julia Subbotina and
  • Vladimir Lobaskin

Beilstein J. Nanotechnol. 2024, 15, 215–229, doi:10.3762/bjnano.15.21

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  • the outer surface of macroscropic and micro- and nano-sized particulate after packaging. It also highlights the dynamic interactions at the bionano interface associated with potential human health hazards. Through biomolecule adsorption, change of conformation, and surface chemistry, foreign materials
  • engage in a complex interplay of dynamic physicochemical interactions, kinetics, and thermodynamic exchanges that can lead to undesirable outcomes [1][8][9][10]. In a more general context, the importance in understanding the mechanism of bionano interactions arises from the increasing awareness and
  • these properties and the biological systems is vital for assessing and mitigating any potential adverse effects associated with exposure to NPs [11]. To advance in this field, it is crucial to comprehend the underlying forces and molecular constituents that govern the interactions between biomolecules
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Published 13 Feb 2024

Ion beam processing of DNA origami nanostructures

  • Leo Sala,
  • Agnes Zerolová,
  • Violaine Vizcaino,
  • Alain Mery,
  • Alicja Domaracka,
  • Hermann Rothard,
  • Philippe Boduch,
  • Dominik Pinkas and
  • Jaroslav Kocišek

Beilstein J. Nanotechnol. 2024, 15, 207–214, doi:10.3762/bjnano.15.20

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  • the generation of plasma from air affecting the nanostructures and DNA–substrate interactions. Despite the underlying mechanism, which is worth of further exploration, this behavior should be emphasized in the present content. Random irradiation of the origami-deposited nanostructures results in a
  • lithographic applications. Conclusion We explored model ion interactions with DNA origami nanostructures, showing promise for fusing these state-of-the-art nanotechnology approaches. The main effects of ion beams on nanostructures are shown in Figure 4A–D. The most important observation is that the shape of
  • ). Artistic representation of four types of effects that can arise from ion beam interactions with DNA origami nanostructures on Si as reported in present work. (A) and (B) are shaping effects via focused beam milling or crater formation. (C) and (D) are height changes induced in vacuum and in air
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Published 12 Feb 2024

Graphene removal by water-assisted focused electron-beam-induced etching – unveiling the dose and dwell time impact on the etch profile and topographical changes in SiO2 substrates

  • Aleksandra Szkudlarek,
  • Jan M. Michalik,
  • Inés Serrano-Esparza,
  • Zdeněk Nováček,
  • Veronika Novotná,
  • Piotr Ozga,
  • Czesław Kapusta and
  • José María De Teresa

Beilstein J. Nanotechnol. 2024, 15, 190–198, doi:10.3762/bjnano.15.18

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  • unconventional strong electron–electron interactions, present in superlattices formed in twisted bilayered and trilayered graphene, led to the emergence of a new field called “twistronics” – just to highlight recent remarkable discoveries such as superconductivity [2][3], topological phases [4][5], and the
  • , the data reveal phenomena emerging from electron-induced interactions of adsorbed water molecules with SiO2, which have not been reported up to now. We observe that at low electron doses, the method provides a high spatial resolution and induces a low amount of defects in nonexposed areas of graphene
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Published 07 Feb 2024

Ferromagnetic resonance spectra of linear magnetosome chains

  • Elizaveta M. Gubanova and
  • Nikolai A. Usov

Beilstein J. Nanotechnol. 2024, 15, 157–167, doi:10.3762/bjnano.15.15

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  • of magnetic anisotropy, the direction of the particle easy anisotropy axes, and other parameters. In addition, the FMR spectrum is sensitive to the presence of magnetostatic interactions in dense assemblies of magnetic nanoparticles. Thus, ferromagnetic resonance spectroscopy is a promising technique
  • correct interpretation of the FMR spectra, it is highly desirable to use the results of detailed micromagnetic modeling, which takes into account the main physical factors affecting the FMR spectra, including the effect of strong magnetic dipole interactions in magnetosome chains. Both magnetosomes grown
  • strong magnetic dipole interactions between the particles of the chain, as well as the effect of thermal fluctuations of magnetic moments of nanoparticles at a finite temperature. Using this approach, in this paper the FMR spectra of oriented assemblies of linear chains of quasi-spherical magnetosomes
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Published 05 Feb 2024
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