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Search for "layers" in Full Text gives 1115 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

A biomimetic approach towards a universal slippery liquid infused surface coating

  • Ryan A. Faase,
  • Madeleine H. Hummel,
  • AnneMarie V. Hasbrook,
  • Andrew P. Carpenter and
  • Joe E. Baio

Beilstein J. Nanotechnol. 2024, 15, 1376–1389, doi:10.3762/bjnano.15.111

Graphical Abstract
  • surface coatings based on the slick surfaces of carnivorous pitcher plants (Nepenthes), termed slippery liquid-infused porous surfaces (SLIPS). This study introduces a simplified method to produce SLIPS using a polydopamine (PDA) anchor layer, inspired by mussel adhesion. SLIPS layers were formed on
  • about the presence and ordering of specific chemical groups within the substrate–PDA–FDT layers was provided by SFG spectra collected from the COC–PDA–FDT sample (Figure 4). The stretching region between 1100 and 1850 cm−1 contains modes related to specific molecular groups within each layer of the
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Published 08 Nov 2024

Out-of-plane polarization induces a picosecond photoresponse in rhombohedral stacked bilayer WSe2

  • Guixian Liu,
  • Yufan Wang,
  • Zhoujuan Xu,
  • Zhouxiaosong Zeng,
  • Lanyu Huang,
  • Cuihuan Ge and
  • Xiao Wang

Beilstein J. Nanotechnol. 2024, 15, 1362–1368, doi:10.3762/bjnano.15.109

Graphical Abstract
  • , bilayer WSe2 can be divided into 3-rhombohedral (3R) and 2-hexagonal (2H) phases [24][26][38]. When two layers are stacked antiparallel, bilayer WSe2 exhibits a hexagonal stacked (H-stacked) structure with inversion symmetry. In contrast, artificially stacking two layers in parallel to form a rhombohedral
  •  1a). In contrast, the BA stacking order, opposite to AB, induces upward polarization (Figure S1a). The transition between AB and BA stacking orders can be accomplished through the interlayer sliding of adjacent WSe2 layers. To further investigate the OOP polarization in 3R WSe2, we prepared the
  • contrast, and characterized by photoluminescence (PL) measurements at room temperature (see Supporting Information File 1, Figure S3). The relative angles between crystalline axes of the top and bottom WSe2 layers were determined by polarization-resolved SHG measurements. The zigzag directions of the two
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Published 06 Nov 2024

Investigation of Hf/Ti bilayers for the development of transition-edge sensor microcalorimeters

  • Victoria Y. Safonova,
  • Anna V. Gordeeva,
  • Anton V. Blagodatkin,
  • Dmitry A. Pimanov,
  • Anton A. Yablokov and
  • Andrey L. Pankratov

Beilstein J. Nanotechnol. 2024, 15, 1353–1361, doi:10.3762/bjnano.15.108

Graphical Abstract
  • compared to the full-size films. This is because at the edges of the structure, the film thickness may differ from that at the center. Smooth edges are also necessary for good contact with subsequent layers. For this reason, special attention is paid to the development of technology for creating structures
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Published 06 Nov 2024

Interaction of graphene oxide with tannic acid: computational modeling and toxicity mitigation in C. elegans

  • Romana Petry,
  • James M. de Almeida,
  • Francine Côa,
  • Felipe Crasto de Lima,
  • Diego Stéfani T. Martinez and
  • Adalberto Fazzio

Beilstein J. Nanotechnol. 2024, 15, 1297–1311, doi:10.3762/bjnano.15.105

Graphical Abstract
  • complete characterization of the GO sample is available in [36]. Atomic force microscopy (AFM), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS) were used to assess size, morphology, number of layers, and surface chemistry of GO. The GO sample used in this study consists of single layers with
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Published 30 Oct 2024

New design of operational MEMS bridges for measurements of properties of FEBID-based nanostructures

  • Bartosz Pruchnik,
  • Krzysztof Kwoka,
  • Ewelina Gacka,
  • Dominik Badura,
  • Piotr Kunicki,
  • Andrzej Sierakowski,
  • Paweł Janus,
  • Tomasz Piasecki and
  • Teodor Gotszalk

Beilstein J. Nanotechnol. 2024, 15, 1273–1282, doi:10.3762/bjnano.15.103

Graphical Abstract
  • prototyping and experimentation, such as electron and ion beams, and in particular FEBID [11][12][13]. FEBID has a resolution of a few nanometres [14] and can be automated [15] or combined with other technologies [16][17]. It can be used to deposit conductive or insulating layers, as well as layers of special
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Published 23 Oct 2024

The role of a tantalum interlayer in enhancing the properties of Fe3O4 thin films

  • Hai Dang Ngo,
  • Vo Doan Thanh Truong,
  • Van Qui Le,
  • Hoai Phuong Pham and
  • Thi Kim Hang Pham

Beilstein J. Nanotechnol. 2024, 15, 1253–1259, doi:10.3762/bjnano.15.101

Graphical Abstract
  • . More importantly, changes in grain size and structure due to the effect of the MgO/Ta buffering layers have a strong impact on saturation magnetization and coercivity of Fe3O4 thin films compared to cases of no or just a single buffering layer. Keywords: buffer layer; Fe3O4; magnetite; RF magnetron
  • and RMS roughness, and in the formation of a polycrystalline structure. Changes in grain size and structure have a strong impact on saturation magnetization and coercivity of the Fe3O4 thin films. Our results indicate that the combination of Ta and MgO buffer layers can influence the morphology and
  • ) substrate using RF magnetron sputtering. This was followed by the formation of a 5 nm thick layer of MgO. The Fe3O4 layers were applied using RF magnetron sputtering at a base pressure of 10−8 Torr, employing a flow of 33 sccm of Ar gas to maintain a stable plasma. The initially deposited films were
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Published 14 Oct 2024

Synthesis, characterization and anticancer effect of doxorubicin-loaded dual stimuli-responsive smart nanopolymers

  • Ömür Acet,
  • Pavel Kirsanov,
  • Burcu Önal Acet,
  • Inessa Halets-Bui,
  • Dzmitry Shcharbin,
  • Şeyda Ceylan Cömert and
  • Mehmet Odabaşı

Beilstein J. Nanotechnol. 2024, 15, 1189–1196, doi:10.3762/bjnano.15.96

Graphical Abstract
  • the effect of at 2 µmol/L pure DOX on HeLa cells (i.e., 37% ± 7%). Also, as in our experiments, the data on DOX release at pH 7.4, 6.0, and 5.0 from polyelectrolyte layers indicated no release of DOX at pH 7.4 and high DOX release at pH 6.0 and 5.0. The growth of human hepatoma cells (HepG2) was
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Published 26 Sep 2024

Quantum-to-classical modeling of monolayer Ge2Se2 and its application in photovoltaic devices

  • Anup Shrivastava,
  • Shivani Saini,
  • Dolly Kumari,
  • Sanjai Singh and
  • Jost Adam

Beilstein J. Nanotechnol. 2024, 15, 1153–1169, doi:10.3762/bjnano.15.94

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  • 2004, the unique properties of two-dimensional materials have sparked intense research interest regarding their use as alternative materials in various photonic applications. Transition metal dichalcogenide monolayers have been proposed as transport layers in photovoltaic cells, but the promising
  • ]. Integrating 2D materials in PSCs can improve their performance. The 2D materials can provide protective layers that work like a shield to the perovskite materials to protect them from environmental degradation caused by moisture and oxygen and provide better device scalability to the PSCs, which makes large
  • various layers including the active/absorber layers, the electron transport layer (ETL) and the hole transport layer (HTL) [12][13]. Both HTL and ETL play a crucial role in achieving a high performance of PV devices. The most common HTL material is spiro-OMeTAD, but it is very expensive [14]. Furthermore
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Published 11 Sep 2024

Photocatalytic methane oxidation over a TiO2/SiNWs p–n junction catalyst at room temperature

  • Qui Thanh Hoai Ta,
  • Luan Minh Nguyen,
  • Ngoc Hoi Nguyen,
  • Phan Khanh Thinh Nguyen and
  • Dai Hai Nguyen

Beilstein J. Nanotechnol. 2024, 15, 1132–1141, doi:10.3762/bjnano.15.92

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  • are highly susceptible to mechanical failure because of their brittle nature; in contrast, the etched SiNW arrays exhibit superior optical absorption and enhanced surface catalytic reaction properties. The intimate contact between 1D Si NWs and thin TiO2 layers reduces the recombination rate of
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Published 02 Sep 2024

Local work function on graphene nanoribbons

  • Daniel Rothhardt,
  • Amina Kimouche,
  • Tillmann Klamroth and
  • Regina Hoffmann-Vogel

Beilstein J. Nanotechnol. 2024, 15, 1125–1131, doi:10.3762/bjnano.15.91

Graphical Abstract
  • acquisition [21][22]. In this way, an image of the local contact potential difference between tip and sample is obtained. This has been shown not only for general surfaces, for example, insulating surfaces, but also for molecules and molecular layers [18][23][24][25]. Here, we study the local work function
  • layer on the tip, we expect that it adopts an image charge distribution that generates a similar electrostatic field as the charge located in the sample. The charge distribution in the sample in our own calculations is distributed over two atomic layers (Au–Au distance: 0.28 nm, see also Supporting
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Published 29 Aug 2024

Direct electron beam writing of silver using a β-diketonate precursor: first insights

  • Katja Höflich,
  • Krzysztof Maćkosz,
  • Chinmai S. Jureddy,
  • Aleksei Tsarapkin and
  • Ivo Utke

Beilstein J. Nanotechnol. 2024, 15, 1117–1124, doi:10.3762/bjnano.15.90

Graphical Abstract
  • , this void is a strong indicator of gas formation during the deposition process. The halo region H1 is composed of three layers, that is, the interfacial silver layer, the carbonaceous layer, and a layer of silver particles at the top. As depicted in Figure 1d, the upper two layers merge along H1
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Published 26 Aug 2024

Recent updates in applications of nanomedicine for the treatment of hepatic fibrosis

  • Damai Ria Setyawati,
  • Fransiska Christydira Sekaringtyas,
  • Riyona Desvy Pratiwi,
  • A’liyatur Rosyidah,
  • Rohimmahtunnissa Azhar,
  • Nunik Gustini,
  • Gita Syahputra,
  • Idah Rosidah,
  • Etik Mardliyati,
  • Tarwadi and
  • Sjaikhurrizal El Muttaqien

Beilstein J. Nanotechnol. 2024, 15, 1105–1116, doi:10.3762/bjnano.15.89

Graphical Abstract
  • interactions The accumulation of any type of NPs in the liver is generally accomplished because of the central role of the liver itself as a main metabolic and excretory organ in the body. The presence of fenestrations in the layers of liver sinusoidal endothelial cells (LSECs) and the absence of the
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Published 23 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

Graphical Abstract
  • structural polymorphism [40] (arrangement, number, and order of layers), the electronic coupling between different layers, and the matrix in which graphene is embedded [41]. Indeed, the matrix plays a pivotal role owing to the ultimate surface-to-volume ratio and the poor electrostatic screening displayed by
  • graphene-based composites [39]. These aspects are especially relevant in determining the in-plane electronic transport within each layer of graphene (intra-layer transport). Conversely, the electronic coupling between different layers dominates the out-of-plane electronic transport from one layer to
  • nanostructured carbon on surfaces on the biological response The modulation of the implant–tissue interface is a complex field of work, which involves both chemical and biological issues. The addition of nanostructured carbonaceous layers represents a solid choice because of the intrinsic properties of carbon
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Published 16 Aug 2024

Bolometric IR photoresponse based on a 3D micro-nano integrated CNT architecture

  • Yasameen Al-Mafrachi,
  • Sandeep Yadav,
  • Sascha Preu,
  • Jörg J. Schneider and
  • Oktay Yilmazoglu

Beilstein J. Nanotechnol. 2024, 15, 1030–1040, doi:10.3762/bjnano.15.84

Graphical Abstract
  • effective temperature increase of our microbolometer with the highest responsivity (configuration 2) was ΔT = 2°C at P/A = 4 × 106 W/m2 as shown in Figure 5b. Boldor [26] demonstrated for their multiwalled carbon nanotube layers the same local temperature increase of ΔT = 2 °C at a much smaller power
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Published 15 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

Graphical Abstract
  • , be noted that some endothelial cell layers have such a short distance between the poles of the cells that alternative mechanisms for transendothelial transport have been suggested [24]. Also, in non-polarized cells the growth conditions may affect the endocytic pathways and the physiology of the
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Published 12 Aug 2024

Recent progress on field-effect transistor-based biosensors: device perspective

  • Billel Smaani,
  • Fares Nafa,
  • Mohamed Salah Benlatrech,
  • Ismahan Mahdi,
  • Hamza Akroum,
  • Mohamed walid Azizi,
  • Khaled Harrar and
  • Sayan Kanungo

Beilstein J. Nanotechnol. 2024, 15, 977–994, doi:10.3762/bjnano.15.80

Graphical Abstract
  • material and silicon-on-insulator substrates with low-doped device layers and small nanowire diameters, achieving a fully depleted mechanism and allowing better surface-to-volume ratios and higher sensitivity applications. 2.2 Two-dimensional FET-based biosensors 2.2.1 Source-engineered Schottky barrier
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Published 06 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

Graphical Abstract
  • degree of controllability or even its ability to self-support under gravitational loads; thus, there is a major interest in stiffness-tunable materials for soft robotic systems [15]. This stiffness tuning in many cases relies on the temporary bonding of composite layers or materials to change effective
  • state for long durations and only need to be reformed occasionally. Energy damping: Depending on the structural layers for the biomimetic adhesives, there could be significant internal energy damping for energy absorption, that is, highly viscoelastic fibers and energy dissipation as heat during
  • sheets but rather as a sandwich composite. This significantly increased overall stiffness because the stiff material, that is, the backing layers, is supported a considerable distance from the core axis. Figure 7 shows demonstrations of how these materials can function statically for changing stiffness
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Published 05 Aug 2024

Effects of cutting tool geometry on material removal of a gradient nanograined CoCrNi medium entropy alloy

  • Yu-Sheng Lu,
  • Yu-Xuan Hung,
  • Thi-Xuyen Bui and
  • Te-Hua Fang

Beilstein J. Nanotechnol. 2024, 15, 925–940, doi:10.3762/bjnano.15.76

Graphical Abstract
  • composition of the CoCrNi MEA is Ni32.7Co33.6Cr33.7. The radial distribution function, g(r), of the CoCrNi MEA substrates was calculated, proving the correctness of the structure, as shown in Figure 1a. Fixed atomic and thermostat layers were added to the CoCrNi MEA substrates to facilitate the machining
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Published 23 Jul 2024

Water-assisted purification during electron beam-induced deposition of platinum and gold

  • Cristiano Glessi,
  • Fabian A. Polman and
  • Cornelis W. Hagen

Beilstein J. Nanotechnol. 2024, 15, 884–896, doi:10.3762/bjnano.15.73

Graphical Abstract
  • purification was achieved, but the functionalization of the material could lead to interesting applications, such as the production of nitrides using FEBID [28]. Water-assisted reactions in Pt FEBID deposits Water-assisted post-exposure purification of condensed layers of MeCpPtMe3 that mimic Pt FEBID deposits
  • ± 0.016, slightly lower than the SEM-EDX top-down line-scan ratio of 0.5 (Supporting Information File 1, p S29) obtained on the same deposit. In the TEM images and the STEM-EDX maps (Figure 7, Supporting Information File 1, pp S30–S31), three layers can be distinguished: (i) the SiOx layer produced
  • patterned area ranges between −0.125 and 0.125 µm. The (a) carbon and (b) platinum contents are presented in atom %. The background Si signal was not excluded from the analysis. (a) High-resolution TEM image and (b) overlay of the HAADF image and the STEM-EDX map of the cross section of deposit 1g. Layers
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Published 18 Jul 2024

A review on the structural characterization of nanomaterials for nano-QSAR models

  • Salvador Moncho,
  • Eva Serrano-Candelas,
  • Jesús Vicente de Julián-Ortiz and
  • Rafael Gozalbes

Beilstein J. Nanotechnol. 2024, 15, 854–866, doi:10.3762/bjnano.15.71

Graphical Abstract
  • their risks, are blooming. One of the challenges is the characterization of the NMs. This cannot be done with a simple SMILES representation, as for organic molecules, because their chemical structure is complex, including several layers and many inorganic materials, and their size and geometry are key
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Published 11 Jul 2024

Investigation on drag reduction on rotating blade surfaces with microtextures

  • Qinsong Zhu,
  • Chen Zhang,
  • Fuhang Yu and
  • Yan Xu

Beilstein J. Nanotechnol. 2024, 15, 833–853, doi:10.3762/bjnano.15.70

Graphical Abstract
  • ; hence, the groove structure needs to be arranged in the front section. In contrast, the back section of the suction surface already exhibits separated boundary layers and turbulent vortices, and the ribs closer to the vortex have a more significant impact on the flow of the vortex. The ribs were
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Published 10 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

Graphical Abstract
  • this model, we deposited a Pd slab on top of a Ag slab. The lattice mismatch between them is 4.6%. In this way, the Pd lattice parameter is adjusted to the Ag parameter. The calculated Ag–Pd (111) distance at the interface is 2.31 Å. Meanwhile, the interplanar distances after the interface layers shift
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Published 04 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
  • number of layers, and measurements without KPFM might give an erroneous layer count. Moreover, a line profile along one and two layers (Figure 2c) reveals that, after charging, the height increase of the first layer with respect to the substrate is much more pronounced than the increase of the second
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Published 01 Jul 2024

Effect of repeating hydrothermal growth processes and rapid thermal annealing on CuO thin film properties

  • Monika Ozga,
  • Eunika Zielony,
  • Aleksandra Wierzbicka,
  • Anna Wolska,
  • Marcin Klepka,
  • Marek Godlewski,
  • Bogdan J. Kowalski and
  • Bartłomiej S. Witkowski

Beilstein J. Nanotechnol. 2024, 15, 743–754, doi:10.3762/bjnano.15.62

Graphical Abstract
  • properties of these layers and to attain the desired parameters in the final product. Controlled thermal treatment serves various purposes, such as enabling crystal structure relaxation, defect reduction, and enhancement of the films’ crystalline arrangement. Furthermore, it can lead to improved electrical
  • that, under the influence of temperature, organic compounds are released from the material, leading to the formation of discontinuities within the layers. Therefore, the HT+RTA sequencing procedure was developed. The modification aimed to obtain continuous layers with minimal carbon compound content
  • the parameters. These factors included single film thickness, substrate type and atmosphere, temperature, and time of annealing along with the number of repetitions of HT+RTA cycles, which is the focus of this study. The most favorable results, that is, layers with the highest level of continuity and
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Published 24 Jun 2024

Level set simulation of focused ion beam sputtering of a multilayer substrate

  • Alexander V. Rumyantsev,
  • Nikolai I. Borgardt,
  • Roman L. Volkov and
  • Yuri A. Chaplygin

Beilstein J. Nanotechnol. 2024, 15, 733–742, doi:10.3762/bjnano.15.61

Graphical Abstract
  • processing was simulated using the level set method and experimentally studied by milling a silicon dioxide layer covering a crystalline silicon substrate. The simulation took into account the redeposition of atoms simultaneously sputtered from both layers of the sample as well as the influence of
  • semiconductor heterostructures [13]. Metal and dielectric layers can be used as hard masks for achieving high resolution and throughput of the FIB nanofabrication process [14]. Modification of integrated circuits [15] is an industrially relevant application of multilayer structure processing. Effective
  • to take into account ion beam-induced redistribution and intermixing of atoms from different layers, were considered less frequently. Some of the examples include analytical estimations of the depth of bilayer substrates [26] and cell-based simulations of surface evolution and ion implantation using
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Published 24 Jun 2024
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