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Search for "transport" in Full Text gives 720 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Structural studies and selected physical investigations of LiCoO2 obtained by combustion synthesis

  • Monika Michalska,
  • Paweł Ławniczak,
  • Tomasz Strachowski,
  • Adam Ostrowski and
  • Waldemar Bednarski

Beilstein J. Nanotechnol. 2022, 13, 1473–1482, doi:10.3762/bjnano.13.121

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  • conversion devices, such as Li-ion batteries, solar cells, solid oxide fuel cells, and thermoelectrics. Unusual and unexpected properties and also unique microstructures (and shapes), such as high porosity, high surface area, short reaction pathways, and diffusion length for Li-ion transport, eventually
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Published 07 Dec 2022

Coherent amplification of radiation from two phase-locked Josephson junction arrays

  • Mikhail A. Galin,
  • Vladimir M. Krasnov,
  • Ilya A. Shereshevsky,
  • Nadezhda K. Vdovicheva and
  • Vladislav V. Kurin

Beilstein J. Nanotechnol. 2022, 13, 1445–1457, doi:10.3762/bjnano.13.119

Graphical Abstract
  • source of biasing. The algorithm of the numerical calculations allows one to obtain both transport and radiation characteristics of the lines with JJs. A more detailed description of the model and the calculation procedure can be found in [8][22]. Figure 6b shows a part of the IVC of array-b and the
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Published 06 Dec 2022

Orally administered docetaxel-loaded chitosan-decorated cationic PLGA nanoparticles for intestinal tumors: formulation, comprehensive in vitro characterization, and release kinetics

  • Sedat Ünal,
  • Osman Doğan and
  • Yeşim Aktaş

Beilstein J. Nanotechnol. 2022, 13, 1393–1407, doi:10.3762/bjnano.13.115

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  • realized. Therefore, the main purpose of this study is to present an innovative approach to this problem. In this context, it is suggested that CS-coated PLGA nanoparticles with positive surface charge can provide stable and effective drug transport through the upper segments of the GIT to the colon after
  • -PLGA NPs. A value of m < 0.45 indicates Fickian diffusion. A value of 0.45 < m < 0.85 shows that the drug release occurs through non-Fickian diffusion. A quotient of m/n = 0.85 is consistent with a case-II transport and m/n > 0.85 indicates super-case-II transport [63][64][65][66]. Here, the
  • transport of DCX across the Caco-2 cell line In vitro transport studies of DCX with DCX-PLGA NPs and CS/DCX-PLGA NPs were conducted across the Caco-2 cell line (human adenocarcinoma cells) (HTB-37™, ATCC, USA). Caco-2 cells, ninth passage, were used for this analyses. Before the experiment, cells were
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Published 23 Nov 2022

LED-light-activated photocatalytic performance of metal-free carbon-modified hexagonal boron nitride towards degradation of methylene blue and phenol

  • Nirmalendu S. Mishra and
  • Pichiah Saravanan

Beilstein J. Nanotechnol. 2022, 13, 1380–1392, doi:10.3762/bjnano.13.114

Graphical Abstract
  • reduction of the space charge region as seen in Figure 6d. Such reduction results in rapid transport and separation of the charge carriers in comparison to HBN. The electrochemical and potentiodynamic characteristics of MBN-80 were studied by analysing LSV and OCPT data. The LSV response for MBN-80 was
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Published 22 Nov 2022

Straight roads into nowhere – obvious and not-so-obvious biological models for ferrophobic surfaces

  • Wilfried Konrad,
  • Christoph Neinhuis and
  • Anita Roth-Nebelsick

Beilstein J. Nanotechnol. 2022, 13, 1345–1360, doi:10.3762/bjnano.13.111

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  • furnace; Collembola; gas/liquid interfaces; interfacial effects; persistant air layers; pits; Salvinia molesta; surfaces; tuyère failure; water transport in plants; xylem; Young–Laplace equation; Introduction and Motivation The basic concept of biomimetics is the derivation of technical applications from
  • background, which has, at first sight, nothing to do with water-repellent biological surfaces. It originated from research dealing with the xylem, the water transport system of plants, which had been pursued by two-co-authors for many years (A. R.-N. and W. K.). A technical exploitation of the transport
  • principle was aimed at in the research project “Energy self-sufficient fibre based long-distance transport of liquids” (see appendix A). The xylem is the plant tissue that transports water from the roots to the leaves. In trees and shrubs, the xylem is represented by the wood. It consists of conduits of
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Published 17 Nov 2022

Near-infrared photoactive Ag-Zn-Ga-S-Se quantum dots for high-performance quantum dot-sensitized solar cells

  • Roopakala Kottayi,
  • Ilangovan Veerappan and
  • Ramadasse Sittaramane

Beilstein J. Nanotechnol. 2022, 13, 1337–1344, doi:10.3762/bjnano.13.110

Graphical Abstract
  • electrochemical activity. It can boost charge recombination and transport electrons readily, which contributes to the enhanced performance of the QDSC. The J–V curves of the AZGSSe/TiO2 photoanode-based QDSCs are displayed in Figure 8 and the corresponding photovoltaic parameters Jsc, Voc, and FF are 14.20 mA/cm2
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Published 14 Nov 2022

Recent trends in Bi-based nanomaterials: challenges, fabrication, enhancement techniques, and environmental applications

  • Vishal Dutta,
  • Ankush Chauhan,
  • Ritesh Verma,
  • C. Gopalkrishnan and
  • Van-Huy Nguyen

Beilstein J. Nanotechnol. 2022, 13, 1316–1336, doi:10.3762/bjnano.13.109

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  • , is more sensitive to photocurrent, and has a lower electrochemical impedance rate. This is because of surface plasmon resonances (SPRs) and the electron transport capabilities of Bi. The photocatalytic activity for the breakdown of phenol was significantly improved, compared to pristine Bi2WO6 under
  • to improve absorption of visible light, charge carrier segregation, and charge transport effectiveness by combining heterojunction and nanomaterials in photocatalysts constructed with care. As a result, this technique offers much potential for photocatalysis applications [94]. The band arrangement
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Published 11 Nov 2022

Enhanced electronic transport properties of Te roll-like nanostructures

  • E. R. Viana,
  • N. Cifuentes and
  • J. C. González

Beilstein J. Nanotechnol. 2022, 13, 1284–1291, doi:10.3762/bjnano.13.106

Graphical Abstract
  • work, the electronic transport properties of Te roll-like nanostructures were investigated in a broad temperature range by fabricating single-nanostructure back-gated field-effect-transistors via photolithography. These one-dimensional nanostructures, with a unique roll-like morphology, were produced
  • these electrical properties with the facile synthesis of one-dimensional nanostructures may bring potential applications of this material in nanoscale optoelectronic integrated devices. However, only a few works have been dedicated to studying the electrical transport in Te-based one-dimensional
  • a well-defined geometry with a uniform rectangular cross section along their entire length. This particular morphology makes them a strong candidate for providing a thorough understanding of dimensionally confined transport phenomena, as presented in SnO2 NBs. Moreover, strain-induced polarization
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Published 08 Nov 2022

Roll-to-roll fabrication of superhydrophobic pads covered with nanofur for the efficient clean-up of oil spills

  • Patrick Weiser,
  • Robin Kietz,
  • Marc Schneider,
  • Matthias Worgull and
  • Hendrik Hölscher

Beilstein J. Nanotechnol. 2022, 13, 1228–1239, doi:10.3762/bjnano.13.102

Graphical Abstract
  • support layer keeping the PP from melting completely and thus enables transport through the calender. The gap size is set slightly below the nominal film thickness so that the films experience minimal embossing forces. Temperature of the sandblasted roller is set slightly above the melting temperature of
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Published 31 Oct 2022

Application of nanoarchitectonics in moist-electric generation

  • Jia-Cheng Feng and
  • Hong Xia

Beilstein J. Nanotechnol. 2022, 13, 1185–1200, doi:10.3762/bjnano.13.99

Graphical Abstract
  • appropriate device design that satisfies the carrier transport requirements. In previous reviews, the physical mechanisms of solid–liquid interactions and MEGs have been systematically discussed [6][32][33], but there is no comprehensive summary of the various types of nanomaterials and nanoarchitectonics
  • can be easily grown on substrates to form nanoscale networks and perform well in MEGs due to their unique electron transport properties [2][47][48]. This includes Al2O3 [49], MoS2 [50][51], Ni–Al layered double hydroxide (LDH) [52], MoS2/SiO2 composites [53], TiO2 [54], and Ti3C2Tx MXene nanosheets
  • were summarized. These parameters include material type, nanoarchitectonics, functional group content, humidity, fluid ion type, fluid ion concentration, fluid velocity, and carrier transport structure. In terms of electrical output, the output power of the current MEGs is still very low. As shown in
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Published 25 Oct 2022

Microneedle-based ocular drug delivery systems – recent advances and challenges

  • Piotr Gadziński,
  • Anna Froelich,
  • Monika Wojtyłko,
  • Antoni Białek,
  • Julia Krysztofiak and
  • Tomasz Osmałek

Beilstein J. Nanotechnol. 2022, 13, 1167–1184, doi:10.3762/bjnano.13.98

Graphical Abstract
  • possible to produce needles containing more than two compartments with different drugs [185]. In order to improve the transport of the steroidal drug difluprednate, applied in the treatment of anterior uveitis, to posterior regions of eye, Shelley et al. developed detachable two-component MN patches for
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Published 24 Oct 2022

Rapid fabrication of MgO@g-C3N4 heterojunctions for photocatalytic nitric oxide removal

  • Minh-Thuan Pham,
  • Duyen P. H. Tran,
  • Xuan-Thanh Bui and
  • Sheng-Jie You

Beilstein J. Nanotechnol. 2022, 13, 1141–1154, doi:10.3762/bjnano.13.96

Graphical Abstract
  • bandgap reduction can be attributed to Mg−N bonds in the MgO@g-C3N4 materials, which promote charge transport, thus, increasing the photocatalytic efficiency [33][51]. Generally, smaller bandgaps lead to better light absorption, indicating the high photocatalytic activity of MgO@g-C3N4 under visible light
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Published 18 Oct 2022

A cantilever-based, ultrahigh-vacuum, low-temperature scanning probe instrument for multidimensional scanning force microscopy

  • Hao Liu,
  • Zuned Ahmed,
  • Sasa Vranjkovic,
  • Manfred Parschau,
  • Andrada-Oana Mandru and
  • Hans J. Hug

Beilstein J. Nanotechnol. 2022, 13, 1120–1140, doi:10.3762/bjnano.13.95

Graphical Abstract
  • as shown in Figure 1. The preparation chamber is equipped with various ports for the attachment of evaporators, a sputter gun, and surface science analytical tools. A rotatable coolable linear manipulator with two sample/cantilever receivers is used to transport sample and cantilever holders to the
  • , permitting the clamping of a sample/cantilever holder and, thus, allowing its safe and rapid transport between the linear manipulator head and the corresponding receivers in the AFM (Figure 7k). Note that we have tested different designs for the screw-activated clamping mechanism. We found the mechanism to
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Published 11 Oct 2022

Electrocatalytic oxygen reduction activity of AgCoCu oxides on reduced graphene oxide in alkaline media

  • Iyyappan Madakannu,
  • Indrajit Patil,
  • Bhalchandra Kakade and
  • Kasibhatta Kumara Ramanatha Datta

Beilstein J. Nanotechnol. 2022, 13, 1020–1029, doi:10.3762/bjnano.13.89

Graphical Abstract
  • comparative mass activity values for various catalyst materials calculated at 0.7 V, among which ACC-2 and ACC-3 exhibited significantly higher mass transport than the other electrocatalysts as shown in Table S2, Supporting Information File 1. It is important to mention that the considerably lower mass
  • activity and considerable mass transport activity. Thus, it is very important to understand the microstructure and bonding information of the resultant hybrid. We further examined the morphology of ACC-2 and its distribution over rGO nanosheets via transmission electron microscopy (TEM). We notice a wide
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Published 26 Sep 2022

Interaction between honeybee mandibles and propolis

  • Leonie Saccardi,
  • Franz Brümmer,
  • Jonas Schiebl,
  • Oliver Schwarz,
  • Alexander Kovalev and
  • Stanislav Gorb

Beilstein J. Nanotechnol. 2022, 13, 958–974, doi:10.3762/bjnano.13.84

Graphical Abstract
  • cuticle of insects often contains pore canals that transport lipid-containing secretions [45]. Cuticular lipids such as alkanes, alkenes, and fatty acids are present on the head and other body parts of honeybees [46]. Their functions include nestmate recognition and protection against desiccation [46
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Published 14 Sep 2022

Self-assembly of C60 on a ZnTPP/Fe(001)–p(1 × 1)O substrate: observation of a quasi-freestanding C60 monolayer

  • Guglielmo Albani,
  • Michele Capra,
  • Alessandro Lodesani,
  • Alberto Calloni,
  • Gianlorenzo Bussetti,
  • Marco Finazzi,
  • Franco Ciccacci,
  • Alberto Brambilla,
  • Lamberto Duò and
  • Andrea Picone

Beilstein J. Nanotechnol. 2022, 13, 857–864, doi:10.3762/bjnano.13.76

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  • compact molecular film is crucial to obtain high-performance devices, since an efficient charge carrier transport is hindered by morphological defects, such as grain boundaries or pinholes [10][11]. Moreover, crystalline and well-ordered layers are particularly suitable for spatially averaging
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Published 30 Aug 2022

Ultrafast signatures of magnetic inhomogeneity in Pd1−xFex (x ≤ 0.08) epitaxial thin films

  • Andrey V. Petrov,
  • Sergey I. Nikitin,
  • Lenar R. Tagirov,
  • Amir I. Gumarov,
  • Igor V. Yanilkin and
  • Roman V. Yusupov

Beilstein J. Nanotechnol. 2022, 13, 836–844, doi:10.3762/bjnano.13.74

Graphical Abstract
  • , photoinduced demagnetization component following a subpicosecond one; the former vanishes at low temperatures only in the x = 0.080 sample. We argue that the 10 ps timescale demagnetization originates most probably from the diffusive transport of d electrons under the condition of nanoscale magnetic
  • of 10 ps can be estimated as 10−9 m/10−11 s = 100 m/s. For the conventional spin diffusion, the spin memory length is where is the diffusion coefficient, τs is the Elliott–Yafet spin-relaxation time [46][47], τ is the charge transport relaxation time, and vF is the Fermi velocity. For the purpose
  • ferromagnetic metals was a subject of interest in magnetic nanostructures [50][51][52] and had a value of about 3 × 105 m/s. Being stronger localized in the narrower 4d bands [44], the itinerant 4d electrons must have a lower velocity, say 105 m/s. Then, with the transport time τ ≈ 10−14 s and the electron-spin
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Published 25 Aug 2022

Hierachical epicuticular wax coverage on leaves of Deschampsia antarctica as a possible adaptation to severe environmental conditions

  • Elena V. Gorb,
  • Iryna A. Kozeretska and
  • Stanislav N. Gorb

Beilstein J. Nanotechnol. 2022, 13, 807–816, doi:10.3762/bjnano.13.71

Graphical Abstract
  • Bay) to 400 mm per year (South Shetland Islands) [26]. In general, a continuous epicuticular wax layer is known to serve as an transport barrier limiting the uncontrolled water loss in plants [38][41]. The presence of a thick wax coverage has been considered as one of typical xeromorphic features (i.e
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Published 22 Aug 2022

Recent advances in nanoarchitectures of monocrystalline coordination polymers through confined assembly

  • Lingling Xia,
  • Qinyue Wang and
  • Ming Hu

Beilstein J. Nanotechnol. 2022, 13, 763–777, doi:10.3762/bjnano.13.67

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  • , which are important for increase the density of active sites for catalysis and energy storage. However, they are too narrow for the transport of small molecules, hindering fast mass transport. Forming additional porous textures in monocrystalline coordination polymers can perfectly solve this problem by
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Published 12 Aug 2022

A nonenzymatic reduced graphene oxide-based nanosensor for parathion

  • Sarani Sen,
  • Anurag Roy,
  • Ambarish Sanyal and
  • Parukuttyamma Sujatha Devi

Beilstein J. Nanotechnol. 2022, 13, 730–744, doi:10.3762/bjnano.13.65

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  • , enhanced electron transport facility, excellent mechanical, thermal, and electrical stability [11][25][26][27]. The electronic structure and surface physicochemistry of graphene are beneficial for electron transfer. Several graphene-based nanocomposites based on complex synthesis processes are reported as
  • graphite nature of GO. This confirms that the oxygen functional groups were removed from the graphene layers by electrochemical reduction of GO, decreasing the interspacing distance between graphene layers which facilitates electron transport. Thus, the conductivity of ERGO was enhanced compared to that of
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Published 28 Jul 2022

Modeling a multiple-chain emeraldine gas sensor for NH3 and NO2 detection

  • Hana Sustkova and
  • Jan Voves

Beilstein J. Nanotechnol. 2022, 13, 721–729, doi:10.3762/bjnano.13.64

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  • , as seen in the I–V characteristic obtained through the extended Hückel method, in the saturated part, ballistic charge carrier transport of one particle takes place. Thus, for the relative resistance change data, only the initial part of the I–V diagram was taken into account. Also, the numerical
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Published 26 Jul 2022

Direct measurement of surface photovoltage by AC bias Kelvin probe force microscopy

  • Masato Miyazaki,
  • Yasuhiro Sugawara and
  • Yan Jun Li

Beilstein J. Nanotechnol. 2022, 13, 712–720, doi:10.3762/bjnano.13.63

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  • ) because of the need for consecutive measurements in darkness and under illumination. Thus, AC-KPFM and classical KPFM measure the SPV derived from different origins, such as charge recombination (nanoseconds to milliseconds) [60], ion transport (milliseconds to seconds) [61], and surface chemical
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Published 25 Jul 2022

Experimental and theoretical study of field-dependent spin splitting at ferromagnetic insulator–superconductor interfaces

  • Peter Machon,
  • Michael J. Wolf,
  • Detlef Beckmann and
  • Wolfgang Belzig

Beilstein J. Nanotechnol. 2022, 13, 682–688, doi:10.3762/bjnano.13.60

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  • -dependent scattering. In contrast, we treat spin mixing of arbitrary strength exactly. The distribution of spin mixing angles (δφn, n is the channel index) along the transport channels is the only unknown in the theory. This distribution can be probed directly in a fully electronic experiment, measuring the
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Published 20 Jul 2022

Comparative molecular dynamics simulations of thermal conductivities of aqueous and hydrocarbon nanofluids

  • Adil Loya,
  • Antash Najib,
  • Fahad Aziz,
  • Asif Khan,
  • Guogang Ren and
  • Kun Luo

Beilstein J. Nanotechnol. 2022, 13, 620–628, doi:10.3762/bjnano.13.54

Graphical Abstract
  • that a local micro-convection is induced in the base fluid due to the Brownian motion of nanoparticles, which increases both mixing and heat transport within the nanofluid [16][17]. Later, several studies demonstrated that interactions between liquid atoms and nanoparticles (i.e., a liquid adsorption
  • dynamic simulations with EAM and the Dreiding force field to investigate different properties of thermal transport of water/CuO nanofluids. They calculated similar thermal conductivity values for water from 303–323 K, as in our case (i.e., 0.59–0.66 W·m−1·K−1, respectively). Then they added CuO
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Published 07 Jul 2022

Influence of thickness and morphology of MoS2 on the performance of counter electrodes in dye-sensitized solar cells

  • Lam Thuy Thi Mai,
  • Hai Viet Le,
  • Ngan Kim Thi Nguyen,
  • Van La Tran Pham,
  • Thu Anh Thi Nguyen,
  • Nguyen Thanh Le Huynh and
  • Hoang Thai Nguyen

Beilstein J. Nanotechnol. 2022, 13, 528–537, doi:10.3762/bjnano.13.44

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  • is associated with the reduction of I3− at the cathode (CE/electrolyte), while the second one in the low-frequency region is attributed to electron transport in the TiO2 film in the back reaction at the TiO2/electrolyte interface (TiO2/dye/electrolyte). EIS data were fitted using an equivalent
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Published 17 Jun 2022
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