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Search for "time dependent" in Full Text gives 227 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

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

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  • loss spectra for Pt(PF3)4 molecules in the gas phase were measured experimentally and compared with time-dependent DFT (TDDFT) calculations in [26]. In the simulations presented below two values of the energy deposited into the molecule, namely 205 kcal/mol (8.9 eV) and 300 kcal/mol (13 eV) were
  • , desorption, diffusion, and dissociation of molecules. The cumulative contribution of these processes defines the regime in which the FEBID is carried out, that is, the time-dependent concentration and distribution of precursors. Our approach is to replicate the regime representing the system’s state before
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Published 13 Oct 2021

First-principles study of the structural, optoelectronic and thermophysical properties of the π-SnSe for thermoelectric applications

  • Muhammad Atif Sattar,
  • Najwa Al Bouzieh,
  • Maamar Benkraouda and
  • Noureddine Amrane

Beilstein J. Nanotechnol. 2021, 12, 1101–1114, doi:10.3762/bjnano.12.82

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  • experimental studies are needed to calculate the ZT value with an accurate evaluation of the relaxation time. Optical properties The optical properties in solid materials are governed by the response of the electrons to time-dependent electromagnetic perturbations triggered by the shining of light. As a result
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Published 05 Oct 2021

A new method for obtaining model-free viscoelastic material properties from atomic force microscopy experiments using discrete integral transform techniques

  • Berkin Uluutku,
  • Enrique A. López-Guerra and
  • Santiago D. Solares

Beilstein J. Nanotechnol. 2021, 12, 1063–1077, doi:10.3762/bjnano.12.79

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  • single Voigt unit in series with a spring. Details about the simulation and the material parameters can be found in the Methods section. Linear ramp stress is applied to the material, from which the corresponding strain is calculated. This calculation gives the stress vs strain as a time-dependent array
  • transform). In Supporting Information File 1, Figure S6, it is demonstrated that this discrepancy also occurs for the FFT algorithm. Since non-unit circles of the z-plane correspond to the modified Fourier transforms of the system, which contain a time-dependent exponential component in addition to their
  • are also areas of future work concerning the methods presented here. We have focused on the non-unit circles of the z-plane, corresponding to modified Fourier transforms of the operators, where each circle represents a combination of a harmonic response with a time-dependent exponential coefficient
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Published 23 Sep 2021

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

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  • ) and crystalline (λ > 670 nm) particles present. Time-dependent characteristics of Sb2S3. Supporting Information Supporting Information File 82: Additional SEM and TEM images, EDX data, and synthesis details. Acknowledgements We thank Dr. Michael Evans from Bruker Corporation and Michael Teck from
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Published 10 Sep 2021

The role of convolutional neural networks in scanning probe microscopy: a review

  • Ido Azuri,
  • Irit Rosenhek-Goldian,
  • Neta Regev-Rudzki,
  • Georg Fantner and
  • Sidney R. Cohen

Beilstein J. Nanotechnol. 2021, 12, 878–901, doi:10.3762/bjnano.12.66

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Published 13 Aug 2021

Comprehensive review on ultrasound-responsive theranostic nanomaterials: mechanisms, structures and medical applications

  • Sepand Tehrani Fateh,
  • Lida Moradi,
  • Elmira Kohan,
  • Michael R. Hamblin and
  • Amin Shiralizadeh Dezfuli

Beilstein J. Nanotechnol. 2021, 12, 808–862, doi:10.3762/bjnano.12.64

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Published 11 Aug 2021

Exploring the fabrication and transfer mechanism of metallic nanostructures on carbon nanomembranes via focused electron beam induced processing

  • Christian Preischl,
  • Linh Hoang Le,
  • Elif Bilgilisoy,
  • Armin Gölzhäuser and
  • Hubertus Marbach

Beilstein J. Nanotechnol. 2021, 12, 319–329, doi:10.3762/bjnano.12.26

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  • not reported before [10][12][14][15][16][17]. The mechanism for the time-dependent deactivation process remains somewhat speculative. We narrow it down to two possibilities. First, it might be that the cross-linking is a competing effect, that is, activated carbon atoms are deactivated by cross
  • and tAG = 4 h 3 min). (f) Local AE spectra recorded at the positions indicated with correspondingly colored stars. Results of time-dependent EBISA experiments followed by autocatalytic growth on a TPT SAM on Ag(111)/mica. All structures were written with Ebeam = 15 kV, Ibeam = 3 nA, and the same tAG
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Published 07 Apr 2021

Doxorubicin-loaded gold nanorods: a multifunctional chemo-photothermal nanoplatform for cancer management

  • Uzma Azeem Awan,
  • Abida Raza,
  • Shaukat Ali,
  • Rida Fatima Saeed and
  • Nosheen Akhtar

Beilstein J. Nanotechnol. 2021, 12, 295–303, doi:10.3762/bjnano.12.24

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  • to the presence of the gold nanocarrier. Without laser treatment low drug release from the nanocomplex was observed. Laser-triggered DOX release was measured using the same laser treatment at different time intervals (2, 3, and 4 h) in which drug release was improved in a time-dependent manner. Less
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Published 31 Mar 2021

A review on the biological effects of nanomaterials on silkworm (Bombyx mori)

  • Sandra Senyo Fometu,
  • Guohua Wu,
  • Lin Ma and
  • Joan Shine Davids

Beilstein J. Nanotechnol. 2021, 12, 190–202, doi:10.3762/bjnano.12.15

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  • midgut (e.g., Dronc, Caspase, and Trt). The research group also indicated that the expression levels of these enzymes within the silkworm midgut were considerably higher within the ZnO NPs exposed group when compared to control and toxicity of ZnO NPs was time-dependent because the antioxidant enzymes
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Published 12 Feb 2021

Self-assembly and spectroscopic fingerprints of photoactive pyrenyl tectons on hBN/Cu(111)

  • Domenik M. Zimmermann,
  • Knud Seufert,
  • Luka Ðorđević,
  • Tobias Hoh,
  • Sushobhan Joshi,
  • Tomas Marangoni,
  • Davide Bonifazi and
  • Willi Auwärter

Beilstein J. Nanotechnol. 2020, 11, 1470–1483, doi:10.3762/bjnano.11.130

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  • Information File 1). b) Time-dependent DFT (TDDFT)-calculated excitation energy in explicit solvent reflecting the UV–vis measurements in toluene solution (see Tables S1–S3). The units are in Volt. P: pore area, W: wire area. High-resolution STM images revealing the bias-dependent intramolecular contrast of
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Published 29 Sep 2020

Extracting viscoelastic material parameters using an atomic force microscope and static force spectroscopy

  • Cameron H. Parvini,
  • M. A. S. R. Saadi and
  • Santiago D. Solares

Beilstein J. Nanotechnol. 2020, 11, 922–937, doi:10.3762/bjnano.11.77

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  • advance and AFM setups can sustain faster data acquisition speeds, the resulting datasets will continue to become richer in time-dependent material information and provide a more complete understanding of how the sample material responds to stress. To maintain consistency between the approach outlined
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Published 16 Jun 2020

Exfoliation in a low boiling point solvent and electrochemical applications of MoO3

  • Matangi Sricharan,
  • Bikesh Gupta,
  • Sreejesh Moolayadukkam and
  • H. S. S. Ramakrishna Matte

Beilstein J. Nanotechnol. 2020, 11, 662–670, doi:10.3762/bjnano.11.52

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  • understand the impact of the sonication time on Cf, MoO3 with Ci = 10 mg·mL−1 (time-dependent studies with other Ci values are shown in Figure S1, Supporting Information File 1) was sonicated for different periods of time (1, 3, 5, and 7 h). The UV–vis spectra of the dispersions were recorded and are shown
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Published 17 Apr 2020

Interfacial charge transfer processes in 2D and 3D semiconducting hybrid perovskites: azobenzene as photoswitchable ligand

  • Nicole Fillafer,
  • Tobias Seewald,
  • Lukas Schmidt-Mende and
  • Sebastian Polarz

Beilstein J. Nanotechnol. 2020, 11, 466–479, doi:10.3762/bjnano.11.38

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  • from an energy transfer from the perovskite to the azobenzene. Here, the distance between the perovskite and the azobenzene moiety plays a crucial role. To verify the assertion of an energy transfer, further examination with time-dependent characterization techniques were quantified. In a typical
  • . Therefore, decreased radiative recombination can be observed and increased photoswitching occurs. Time-dependent fluorescence measurements reveal the distance-dependent energy transfer dynamics. We observe much shorter lifetimes for small insulating spacers (AzoC1 and AzoC2) than for longer spacers (AzoOC4
  • S2; see Table 2) of the azobenzene ligands and VB and CB of the perovskite particles in dependence on the distance between the perovskite and the azobenzene group. (B) Time-dependent PL measurements of a dispersion of 3D-AzoC1 (black), 3D-AzoC2 (dark grey), 3D-AzoOC4 (grey) and 3D-AzoOC12 (light grey
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Published 17 Mar 2020

Current measurements in the intermittent-contact mode of atomic force microscopy using the Fourier method: a feasibility analysis

  • Berkin Uluutku and
  • Santiago D. Solares

Beilstein J. Nanotechnol. 2020, 11, 453–465, doi:10.3762/bjnano.11.37

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  • stem from the dynamics and mechanics of an intermittent-contact operation. Besides the fact that electrical contacts would be intermittent, the nature of the contact would also be time-dependent within the contact time. This is because the indentation is constantly varying. Furthermore, the
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Published 13 Mar 2020

Understanding nanoparticle flow with a new in vitro experimental and computational approach using hydrogel channels

  • Armel Boutchuen,
  • Dell Zimmerman,
  • Abdollah Arabshahi,
  • John Melnyczuk and
  • Soubantika Palchoudhury

Beilstein J. Nanotechnol. 2020, 11, 296–309, doi:10.3762/bjnano.11.22

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  • water within its structure with a 60% increase in mass from swelling after 1 h of water absorption at pH 11 at ambient temperature (25 °C). The high water content of the pHEMA hydrogels is attractive as it resembles properties of soft tissues and vascular networks. Figure 2 shows the pH- and time
  • -dependent swelling behavior of the pHEMA hydrogels selected for fabrication of the flow channels. In general, the different pHEMA gels showed maximum swelling after 1.5 h and 3.5 h with a 40–50% increase in mass and disintegrated after 7 h of water absorption (Figures S1–S3, Supporting Information File 1
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Published 06 Feb 2020

Using gold nanoparticles to detect single-nucleotide polymorphisms: toward liquid biopsy

  • María Sanromán Iglesias and
  • Marek Grzelczak

Beilstein J. Nanotechnol. 2020, 11, 263–284, doi:10.3762/bjnano.11.20

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  • aggregation. a) The spurious catalyst decelerates the toehold-exchange reaction and thus the formation of aggregates. (b) Time-dependent change of the color of the assay using spurious and correct targets. Reprinted with permission from [83], copyright 2014 John Wiley and Sons. Working principle of the
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Published 31 Jan 2020

Rational design of block copolymer self-assemblies in photodynamic therapy

  • Maxime Demazeau,
  • Laure Gibot,
  • Anne-Françoise Mingotaud,
  • Patricia Vicendo,
  • Clément Roux and
  • Barbara Lonetti

Beilstein J. Nanotechnol. 2020, 11, 180–212, doi:10.3762/bjnano.11.15

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Published 15 Jan 2020

Design of a nanostructured mucoadhesive system containing curcumin for buccal application: from physicochemical to biological aspects

  • Sabrina Barbosa de Souza Ferreira,
  • Gustavo Braga,
  • Évelin Lemos Oliveira,
  • Jéssica Bassi da Silva,
  • Hélen Cássia Rosseto,
  • Lidiane Vizioli de Castro Hoshino,
  • Mauro Luciano Baesso,
  • Wilker Caetano,
  • Craig Murdoch,
  • Helen Elizabeth Colley and
  • Marcos Luciano Bruschi

Beilstein J. Nanotechnol. 2019, 10, 2304–2328, doi:10.3762/bjnano.10.222

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  • , hence, the polymeric chains were slowly reorganized, whereas CUR diffused by time-dependent anomalous effects. The solvent diffusion velocity displayed similar relaxation of the polymeric chains [77]. Ex vivo permeation of curcumin in porcine oral mucosa Permeation studies are considered fundamental to
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Published 25 Nov 2019

Microfluidics as tool to prepare size-tunable PLGA nanoparticles with high curcumin encapsulation for efficient mucus penetration

  • Nashrawan Lababidi,
  • Valentin Sigal,
  • Aljoscha Koenneke,
  • Konrad Schwarzkopf,
  • Andreas Manz and
  • Marc Schneider

Beilstein J. Nanotechnol. 2019, 10, 2280–2293, doi:10.3762/bjnano.10.220

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  • before the experiments, frozen native pulmonary human mucus samples were left to thaw in the refrigerator at 4 °C. Rhodamine B labelled PLGA NPs of 60, 140 and 400 nm diameter were dispersed in Milli-Q water at 0.1% w/v. 5 μL of the nano-suspension was added on top of the mucus. Then, the time-dependent
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Published 19 Nov 2019

Nitrogen-vacancy centers in diamond for nanoscale magnetic resonance imaging applications

  • Alberto Boretti,
  • Lorenzo Rosa,
  • Jonathan Blackledge and
  • Stefania Castelletto

Beilstein J. Nanotechnol. 2019, 10, 2128–2151, doi:10.3762/bjnano.10.207

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Published 04 Nov 2019

Nanostructured and oriented metal–organic framework films enabling extreme surface wetting properties

  • Andre Mähringer,
  • Julian M. Rotter and
  • Dana D. Medina

Beilstein J. Nanotechnol. 2019, 10, 1994–2003, doi:10.3762/bjnano.10.196

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  • properties with water and underwater oil-contact angles of 0° and up to 174°, respectively. The self-cleaning capability of the nanostructured, needle-like M-CAT-1 films was illustrated by measuring time-dependent oil droplet rolling-off a tilted surface. The deposition of the nanostructured Ni-CAT-1 film on
  • nanostructured, needle-like Ni- and Co-CAT-1 films was illustrated by measuring time-dependent oil droplet rolling-off a tilted surface. The deposition of the nanostructured Ni-CAT-1 film on large glass substrates allowed for the realization of an efficient antifog coating. These antifog coatings enabled clear
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Published 09 Oct 2019

Pulsed laser synthesis of highly active Ag–Rh and Ag–Pt antenna–reactor-type plasmonic catalysts

  • Kenneth A. Kane and
  • Massimo F. Bertino

Beilstein J. Nanotechnol. 2019, 10, 1958–1963, doi:10.3762/bjnano.10.192

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  • . Afterwards, 0.015 mL of fresh aqueous 10−1 M NaBH4 was spiked into the mixture, as reducing agent, and the time-dependent absorption spectrum was recorded. As NaBH4 was used in excess, the reaction kinetics are assumed to follow a first-order rate law. The absorption peak at 400 nm (Abs400nm) forms
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Published 26 Sep 2019

Synthesis and potent cytotoxic activity of a novel diosgenin derivative and its phytosomes against lung cancer cells

  • Liang Xu,
  • Dekang Xu,
  • Ziying Li,
  • Yu Gao and
  • Haijun Chen

Beilstein J. Nanotechnol. 2019, 10, 1933–1942, doi:10.3762/bjnano.10.189

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  • the blank lipid nanoparticles was first investigated. As shown in Figure 4, P did not show any antiproliferative effects on A549 and PC9 cells, indicating the safety of the carrier material. DiP and P2P showed efficient antiproliferative activity in a dose- and time-dependent manner. DiP and P2P
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Published 24 Sep 2019

High-tolerance crystalline hydrogels formed from self-assembling cyclic dipeptide

  • Yongcai You,
  • Ruirui Xing,
  • Qianli Zou,
  • Feng Shi and
  • Xuehai Yan

Beilstein J. Nanotechnol. 2019, 10, 1894–1901, doi:10.3762/bjnano.10.184

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  • , the modulus (both G’ and G’’) was enhanced after aging for a longer time, indicating the improvement in the mechanical capacity of the hydrogels with time. Taken together, the rheological study indicates that the CWY hydrogels possess shear-thinning and self-healing behaviors, which are time-dependent
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Published 18 Sep 2019

Charge-transfer interactions between fullerenes and a mesoporous tetrathiafulvalene-based metal–organic framework

  • Manuel Souto,
  • Joaquín Calbo,
  • Samuel Mañas-Valero,
  • Aron Walsh and
  • Guillermo Mínguez Espallargas

Beilstein J. Nanotechnol. 2019, 10, 1883–1893, doi:10.3762/bjnano.10.183

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  • to electronic polarization), with an exponential decay as a function of the C60…TTF intermolecular distance (Table S2, Supporting Information File 1). Time-dependent DFT molecular calculations were performed at the CAM-B3LYP/6-31G** level (see the Experimental section) to shed light onto the
  • ) was employed along with the 6-31G** basis set and half of the counterpoise correction (CP) [69]. The consistency of the interaction energy trends at the B3LYP-D3/6-31G**+½CP level was confirmed by using other basis set or CP weights (Table S1, Supporting Information File 1). Time-dependent DFT (TDDFT
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Published 18 Sep 2019
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