Effects of drug concentration and PLGA addition on the properties of electrospun ampicillin trihydrate-loaded PLA nanofibers

• Tuğba Eren Böncü and
• Nurten Ozdemir

Beilstein J. Nanotechnol. 2022, 13, 245–254, doi:10.3762/bjnano.13.19

• used in the current study are shown in Table 1 and Table 2 (Electrospinning machine Ne-200, Inovenso, Turkey). The collector covered by a piece of aluminum foil was used for fiber deposition. The deposited fiber mats were dried for 72 h at room temperature and stored in a desiccant until the analysis

Engineered titania nanomaterials in advanced clinical applications

• Padmavati Sahare,
• Paulina Govea Alvarez,
• Juan Manual Sanchez Yanez,
• Gabriel Luna-Bárcenas,
• Samik Chakraborty,
• Sujay Paul and
• Miriam Estevez

Beilstein J. Nanotechnol. 2022, 13, 201–218, doi:10.3762/bjnano.13.15

• phosphate ions than the rutile phase in body fluids, supporting the deposition of apatite. A titania nanotube array (anatase) showed increased cell adhesion, proliferation, and differentiation [67]. Titanium heart valves are also very compatible and compete with regular tissue valves [68]. In addition

• standard glass surface [82]. Another recent study stated that hollow, calcined TiO2 nanospheres (CSTiO2), synthesized by the combination of electrospinning and atomic layer deposition, have high antimicrobial activity against multidrug-resistant bacteria such as S. aureus strains compared to commercial

Low-energy electron interaction and focused electron beam-induced deposition of molybdenum hexacarbonyl (Mo(CO)₆)

• Po-Yuan Shih,
• Maicol Cipriani,
• Christian Felix Hermanns,
• Jens Oster,
• Klaus Edinger,
• Armin Gölzhäuser and
• Oddur Ingólfsson

Beilstein J. Nanotechnol. 2022, 13, 182–191, doi:10.3762/bjnano.13.13

• (CO)6 in comparison to focused electron beam-induced deposition (FEBID) of this precursor. The DEA and DI experiments are compared to previous work, differences are addressed, and the nature of the underlying resonances leading to the observed DEA processes are discussed in relation to an earlier

• electron transmission study. Relative contributions of individual ionic species obtained through DEA and DI of Mo(CO)6 and the average CO loss per incident are calculated and compared to the composition of the FEBID deposits produced. These are also compared to gas phase, surface science and deposition

• studies on W(CO)6 and we hypothesize that reductive ligand loss through electron attachment may promote metal–metal bond formation in the deposition process, leading to further ligand loss and the high metal content observed in FEBID for both these compounds. Keywords: dissociative electron attachment

A comprehensive review on electrospun nanohybrid membranes for wastewater treatment

• Senuri Kumarage,
• Imalka Munaweera and
• Nilwala Kottegoda

Beilstein J. Nanotechnol. 2022, 13, 137–159, doi:10.3762/bjnano.13.10

• ]. Su et al. have developed a superhydrophobic PVDF electrospun membrane for MD, which showed exceptional properties [56]. The membrane exhibited a significant antifouling property, stable permeate flux and little scaling or deposition of hard mineral salts on the membrane. In another study Kim and co

Tin dioxide nanomaterial-based photocatalysts for nitrogen oxide oxidation: a review

• Viet Van Pham,
• Hong-Huy Tran,
• Thao Kim Truong and
• Thi Minh Cao

Beilstein J. Nanotechnol. 2022, 13, 96–113, doi:10.3762/bjnano.13.7

• al. on using Ag@SnO2 NPs for removing NO, taking advantage of plasmonic-induced photocatalysis [72]. The Ag@SnO2 NPs were fabricated by a simple and green approach using hydrothermal growth and photoreduction deposition. The introduction of Ag induced a bending of the band structure of SnO2 NPs

• materials, preferably using two redox sites; (3) synthesizing other morphologies of SnO2 such as nanorods, nanotubes, or 3D structures to increase the specific surface area of the catalyst; (4) upscaling the syntheses and using other synthesis approaches such as sol–gel or chemical vapor deposition to form

Influence of magnetic domain walls on all-optical magnetic toggle switching in a ferrimagnetic GdFe film

• Rahil Hosseinifar,
• Evangelos Golias,
• Ivar Kumberg,
• Quentin Guillet,
• Karl Frischmuth,
• Sangeeta Thakur,
• Mario Fix,
• Manfred Albrecht,
• Florian Kronast and
• Wolfgang Kuch

Beilstein J. Nanotechnol. 2022, 13, 74–81, doi:10.3762/bjnano.13.5

• thickness, deposited at room temperature using magnetron sputtering (base pressure <10−8 mbar) from elemental targets. The Ar sputter pressure was kept constant at 3.5 × 10−3 mbar during the deposition process. The film was prepared with 5 nm Pt as a seed layer on a Si(100) substrate with a 100 nm thick

Nanoscale friction and wear of a polymer coated with graphene

• Robin Vacher and
• Astrid S. de Wijn

Beilstein J. Nanotechnol. 2022, 13, 63–73, doi:10.3762/bjnano.13.4

• 300 K and a damping time of 0.1 ps. This thermostat is applied only to the bottom quarter of the PVA molecules, and later to the graphene sheet. To prevent the polymer slab from moving as a result of the external forces during deposition of the graphene, indentation, and sliding, the centers of mass

• of the chains in the lower quarter of the substrate are tethered to their original positions using springs with spring constant 1 eV/Å2. Graphene deposition After the solidification of the semicrystalline substrate a layer of graphene is deposited on top. We use two different graphene sheets in our

• bin is assigned the height of the monomer with the highest z-position. We compute the surface roughness as the root mean square height, where A is the surface area, and Z is the height of the particles on the surface. Results and Discussion Effect of graphene deposition After the deposition of

Sputtering onto liquids: a critical review

• Anastasiya Sergievskaya,
• Adrien Chauvin and
• Stephanos Konstantinidis

Beilstein J. Nanotechnol. 2022, 13, 10–53, doi:10.3762/bjnano.13.2

• , Czech Republic 10.3762/bjnano.13.2 Abstract Sputter deposition of atoms onto liquid substrates aims at producing colloidal dispersions of small monodisperse ultrapure nanoparticles (NPs). Since sputtering onto liquids combines the advantages of the physical vapor deposition technique and classical

• colloidal synthesis, the review contains chapters explaining the basics of (magnetron) sputter deposition and the formation of NPs in solution. This review article covers more than 132 papers published on this topic from 1996 to September 2021 and aims at providing a critical analysis of most of the

• (Figure 1). In 1974, Yatsuya et al. used a liquid as a substrate during a physical vapor deposition (PVD) experiment. They thermally evaporated metals in vacuum onto silicon oil for NP production [9]. After the pioneering experiments of Yatsuya et al., depositions onto liquids were not mentioned in

Topographic signatures and manipulations of Fe atoms, CO molecules and NaCl islands on superconducting Pb(111)

• Carl Drechsel,
• Philipp D’Astolfo,
• Jung-Ching Liu,
• Thilo Glatzel,
• Rémy Pawlak and
• Ernst Meyer

Beilstein J. Nanotechnol. 2022, 13, 1–9, doi:10.3762/bjnano.13.1

• the electronic decoupling of single atoms or molecules from the superconducting Pb(111). Single Fe atoms on Pb(111) and their lateral manipulations Figure 4 shows the deposition and controlled lateral manipulation of Fe adatoms on Pb(111). Upon deposition of Fe atoms on Pb(111) (kept below 15 K

• propensity of diffusing under gentle scanning conditions. In contrast, CO molecules become apparent by STM on Pb(110), since they initiate attractive dipole–dipole interactions, which support the formation of linear aggregates. Furthermore, we show that deposition of NaCl on Pb(111) leads to bilayer islands

• similar to literature data. Lastly, cold-temperature deposition (≤15 K) of Fe on Pb(111) leads to the adsorption of adatoms and small Fe clusters. Using tip-induced lateral manipulations, we demonstrate the exchange of Fe single atoms between these clusters and characterize the variation of apparent STM

Design aspects of Bi₂Sr₂CaCu₂O_8+δ THz sources: optimization of thermal and radiative properties

• Mikhail M. Krasnov,
• Natalia D. Novikova,
• Roger Cattaneo,
• Alexey A. Kalenyuk and
• Vladimir M. Krasnov

Beilstein J. Nanotechnol. 2021, 12, 1392–1403, doi:10.3762/bjnano.12.103

• glue. The crystal is cleaved under ambient conditions. After that the sample is immediately put into a deposition chamber and a protective gold layer of 60–80 nm is deposited to avoid surface passivation. Next, a line pattern of photoresist is written with a length of 100–200 μm and a width of 5–15 μm

• on a flat portion of Bi-2212 surface, followed by argon-ion etching of the unprotected parts of Au and Bi-2212, the deposition of insulating SiO2 or CaF2 layers and a lift-off of the photoresist at the line. The depth of Bi-2212 etching at this stage (dm ≈ 200–400 nm) defines the height of mesas and

Chemical vapor deposition of germanium-rich CrGe_x nanowires

• Vladislav Dřínek,
• Stanislav Tiagulskyi,
• Roman Yatskiv,
• Jan Grym,
• Radek Fajgar,
• Věra Jandová,
• Martin Koštejn and
• Jaroslav Kupčík

Beilstein J. Nanotechnol. 2021, 12, 1365–1371, doi:10.3762/bjnano.12.100

• Sciences, Chaberská 1014/57, 182 51 Prague 8, Czech Republic 10.3762/bjnano.12.100 Abstract Chemical vapor deposition was applied to synthetize nanostructured deposits containing several sorts of nanoobjects (i.e., nanoballs, irregular particles, and nanowires). Analytical techniques, that is, high

• . Keywords: chemical vapor deposition; chromium germanide; nanostructured materials; nanowire; resistivity; Introduction Metal silicides and germanides belong to an extensively studied group of materials offering a wide variety of properties to meet various requirements in battery, optical, and electronic

• effort to prepare a Cr/Ge deposit in a nanostructured form. Using chemical vapor deposition (CVD), we succeeded to synthesize deposits containing CrGex NWs. Their structure was elucidated and measurements of individual NWs were carried out to determine their electrical resistivity. Results and Discussion

Nonmonotonous temperature dependence of Shapiro steps in YBCO grain boundary junctions

• Leonid S. Revin,
• Dmitriy V. Masterov,
• Alexey E. Parafin,
• Sergey A. Pavlov and
• Andrey L. Pankratov

Beilstein J. Nanotechnol. 2021, 12, 1279–1285, doi:10.3762/bjnano.12.95

• YBaCuO film deposition on an yttria-stabilized zirconia bicrystal substrate. Non-monotonic dependences of step heights for different external signal frequencies were found in the limit of a weak driving signal, with the maxima occurring at different points as function of the temperature. The step heights

Plasmon-enhanced photoluminescence from TiO₂ and TeO₂ thin films doped by Eu³⁺ for optoelectronic applications

• Marcin Łapiński,
• Jakub Czubek,
• Katarzyna Drozdowska,
• Anna Synak,
• Wojciech Sadowski and
• Barbara Kościelska

Beilstein J. Nanotechnol. 2021, 12, 1271–1278, doi:10.3762/bjnano.12.94

• thin films can be implemented in many ways. The change of deposition parameters and working gasses, doping with various elements, or annealing at an elevated temperature are the most commonly used procedures [17][18]. It gives enormous possibilities for manufacturing thin films with novel properties

• enhance the luminescence by plasmon resonance. These nanostructures could find practical applications, for example, as phosphor material in LEDs. Experimental Corning 1737 glass was chosen as a substrate for film deposition. The substrates were gently cleaned with warm acetylacetone, then rinsed in

• . The round Au target with 99.99% purity was sputtered by 30 W of incident power. The rate of Au layer deposition was about 4 Å/s. Thickness was controlled by a built-in quartz crystal microbalance. As prepared films were subsequently put in a hot furnace for the formation of nanostructures. Samples

Enhancement of the piezoelectric coefficient in PVDF-TrFe/CoFe₂O₄ nanocomposites through DC magnetic poling

• Marco Fortunato,
• Alessio Tamburrano,
• Maria Paola Bracciale,
• Maria Laura Santarelli and
• Maria Sabrina Sarto

Beilstein J. Nanotechnol. 2021, 12, 1262–1270, doi:10.3762/bjnano.12.93

• temperatures. This process, usually referred to as electrical poling, requires the deposition of contact electrodes on the sample surface and the use of high-voltage apparatus. In the present work, in order to overcome these constraints, we have produced, characterized, and studied a polymer nanocomposite

Morphology-driven gas sensing by fabricated fractals: A review

• Vishal Kamathe and
• Rupali Nagar

Beilstein J. Nanotechnol. 2021, 12, 1187–1208, doi:10.3762/bjnano.12.88

• a lower value of fractal dimension is more effective in sensing NO2 gas and lowers the optimum operating temperature. Chen et al. used pulsed laser deposition for growing different SnO2 thin films by varying the substrate temperature. The obtained films exhibited fractal features [43]. In another

• . 3D porous nanoscale hybrid SnO2/CuO foam sensors were prepared by Jeun et al. via electrochemical deposition followed by thermal oxidation [72]. These foam sensors were studied for H2S gas sensing. Figure 10a and Figure 10b show SEM images of the porous and 3D network structure of as-prepared Sn/Cu

• ], Materials Letters, vol. 105, by J.-H. Jeun; D.-H. Kim; S.-H. Hong, “SnO2/CuO nano-hybrid foams synthesized by electrochemical deposition and their gas sensing properties”, pages no. 58–61, Copyright (2013), with permission from Elsevier. This content is not subject to CC BY 4.0. TiO2 fractals. (a) Top-view

The effect of cobalt on morphology, structure, and ORR activity of electrospun carbon fibre mats in aqueous alkaline environments

• Markus Gehring,
• Tobias Kutsch,
• Osmane Camara,
• Alexandre Merlen,
• Hermann Tempel,
• Hans Kungl and
• Rüdiger-A. Eichel

Beilstein J. Nanotechnol. 2021, 12, 1173–1186, doi:10.3762/bjnano.12.87

• three main groups: electroplating, electroless plating, and bottom-up methods such as vapour deposition. Another way to introduce metals to a carbon fibre system in form of nanoparticles was reported by groups who prepared cobalt/cobalt oxide-decorated carbon nanofibres from electrospinning by adding a

Irradiation-driven molecular dynamics simulation of the FEBID process for Pt(PF₃)₄

• Alexey Prosvetov,
• Alexey V. Verkhovtsev,
• Gennady Sushko and
• Andrey V. Solov’yov

Beilstein J. Nanotechnol. 2021, 12, 1151–1172, doi:10.3762/bjnano.12.86

• presents a detailed computational protocol for the atomistic simulation of formation and growth of metal-containing nanostructures during focused electron beam-induced deposition (FEBID). The protocol is based upon irradiation-driven molecular dynamics (IDMD), a novel and general methodology for computer

• deposition; irradiation-driven molecular dynamics; irradiation-induced chemistry; platinum nanostructures; reactive force fields; Introduction The controllable fabrication of nanostructures with nanoscale resolution remains a considerable scientific and technological challenge [1]. To address this challenge

• irradiation-sensitive resists. The EBL process includes the surface coating with a resist, exposure to the energetic electron beam, and further development of the surface to remove irradiated or non-irradiated material. Another technique, focused electron beam-induced deposition (FEBID) [2][3][4][5], is based

Assessment of the optical and electrical properties of light-emitting diodes containing carbon-based nanostructures and plasmonic nanoparticles: a review

• Keshav Nagpal,
• Erwan Rauwel,
• Frédérique Ducroquet and
• Protima Rauwel

Beilstein J. Nanotechnol. 2021, 12, 1078–1092, doi:10.3762/bjnano.12.80

• from certain limitations, including high processing temperatures, cracking upon bending, and poor transparency in the blue and UV regions. In addition, ITO is expensive owing to the fact that it is deposited by high-vacuum thin-film deposition methods and the price of indium has escalated by almost 900

• increase of the maximum current value from 2.3 to 5 mA at 10 V, when graphene is present. Guo et al. also reported an increase of about 40% in the EL intensity under a 5 mA current injection at room temperature in AlGaInP LED, after the deposition of graphene onto the anode or the GaP surface [40]. Roll-to

• -roll techniques and chemical vapor deposition, both industrially viable techniques, are capable of producing 30 inch wafers of graphene, thereby demonstrating the viable upscaling of its production [41]. Other carbon-based nanomaterials such as SWNT have also been employed as current-spreading layers

An overview of microneedle applications, materials, and fabrication methods

• Zahra Faraji Rad,
• Philip D. Prewett and
• Graham J. Davies

Beilstein J. Nanotechnol. 2021, 12, 1034–1046, doi:10.3762/bjnano.12.77

• layer of polymer introduced between the mould and the metal structure to facilitate chemical lift-off separation of the final array. For hollow metal microneedles, a plasma etching step was performed prior to metal deposition [106]. Unlike the ubiquitous stainless steel hypodermic needle, safety

Revealing the formation mechanism and band gap tuning of Sb₂S₃ nanoparticles

• Maximilian Joschko,
• Franck Yvan Fotue Wafo,
• Christina Malsi,
• Danilo Kisić,
• Ivana Validžić and
• Christina Graf

Beilstein J. Nanotechnol. 2021, 12, 1021–1033, doi:10.3762/bjnano.12.76

• deposition [13] methods. Up to now, the syntheses of Sb2S3 nanomaterials lack sufficient control of the growth conditions. The result are nanoparticles of which the size, shape, and crystallinity can only be tuned to a limited extent. However, for several applications, such as electronic circuits [14], it is

Progress and innovation of nanostructured sulfur cathodes and metal-free anodes for room-temperature Na–S batteries

• Marina Tabuyo-Martínez,
• Bernd Wicklein and
• Pilar Aranda

Beilstein J. Nanotechnol. 2021, 12, 995–1020, doi:10.3762/bjnano.12.75

• . reported on the wet impregnation of carbon fiber cloth with sulfur dissolved in CS2 [56]. The process leads to sulfur deposition within the hollow lumen of the carbon fibers as well as on the external surface as thin film. A battery assembled with a metal Na anode had a capacity of 120 mAh·g−1 after 300

• emerging that advocate metal Na-free anodes. These can be divided in depositing nanometric Na on a porous host material and inserting Na ions in a suitable host material. Host materials for the deposition of Na are porous scaffolds based on carbon and metal. The insertion of Na ions can be performed with

• capacity of these electrodes depends on two mechanisms, the deposition/stripping of Na and the insertion/extraction of Na+. Metal scaffolds and meshes fabricated from Cu, Ni, Ni@Cu, or Al are other materials onto which Na can be plated. As shown in a recent work, porous Ni structures formed on Cu foil

Is the Ne operation of the helium ion microscope suitable for electron backscatter diffraction sample preparation?

• Annalena Wolff

Beilstein J. Nanotechnol. 2021, 12, 965–983, doi:10.3762/bjnano.12.73

Uniform arrays of gold nanoelectrodes with tuneable recess depth

• Elena O. Gordeeva,
• Ilya V. Roslyakov,
• Alexey P. Leontiev,
• Alexey A. Klimenko and
• Kirill S. Napolskii

Beilstein J. Nanotechnol. 2021, 12, 957–964, doi:10.3762/bjnano.12.72

• alternative approach includes bulk electrode structuring by deposition or etching techniques using self-assembled arrays of colloidal nanoparticles [15], liquid crystals [16], or track-etched membranes [17][18][19] as template or mask, respectively. Among porous templates, anodic aluminium oxide (AAO) allows

• segment were selectively etched away after turning the AAO template upside down (Figure 1d). Segment 1 – copper Optimization of the deposition potential (Ed) for the formation of the first Cu segment was performed in the range from −0.1 to −0.5 V. In the case of more negative potentials, an intensive

• growth rate as can be seen from the dependence of the average current density (javer) and the Cu growth rate on the deposition potential (Table 1). To determine the Cu electrodeposition conditions leading to the highest length uniformity, the first segment with much longer length than the supposed recess

Molecular assemblies on surfaces: towards physical and electronic decoupling of organic molecules

• Sabine Maier and
• Meike Stöhr

Beilstein J. Nanotechnol. 2021, 12, 950–956, doi:10.3762/bjnano.12.71

• physical and electronic decoupling have been developed in view of fundamental studies as well as application in devices. Ultrathin semiconducting or insulating decoupling layers can be epitaxially grown as mono- and multilayers on many metallic substrates by either physical or chemical vapor deposition

• ][30][31][32]. Additional concepts to weaken adsorbate–surface interactions involve the post-deposition intercalation of atomic species such as iodine [33]. For semiconductors, for example, bare silicon or germanium, electronic decoupling of molecules can be achieved by either the growth of ultrathin

• ][37][38][39], while also B deposition was shown to result in effective passivation of the Si surface [40][41]. In particular for electronic devices, oxidized semiconductor surfaces (e.g., silicon dioxide layers formed on bare silicon) are mostly used as substrates for fabricating devices [42]. Most of

Self-assembly of Eucalyptus gunnii wax tubules and pure ß-diketone on HOPG and glass

• Miriam Anna Huth,
• Axel Huth and
• Kerstin Koch

Beilstein J. Nanotechnol. 2021, 12, 939–949, doi:10.3762/bjnano.12.70

• mass deposition, also known as “coffee ring effect” [36], was visible in low magnification. In areas of very high mass accumulation, both substances assembled into plates with a random orientation and into tubules on both substrates. On areas with lower mass accumulation, different structures were