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Search for "in situ" in Full Text gives 511 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Relationship between corrosion and nanoscale friction on a metallic glass

  • Haoran Ma and
  • Roland Bennewitz

Beilstein J. Nanotechnol. 2022, 13, 236–244, doi:10.3762/bjnano.13.18

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  • corrosion conditions. Recently, we investigated nanoscale friction on a Zr63Ni22Ti15 (ZrNiTi) MG in phosphate buffer after electrochemical polarization [21]. Our results demonstrated a new method to investigate in situ the structure of surface oxide films grown upon polarization in aqueous solutions using
  • , nanotribological in situ experiments are implemented to reveal microscopic corrosion processes. Results and Discussion Potentiodynamic polarisation tests Phosphate buffer and NaCl solution were selected as test solutions because of their differences in corrosion of ZrNiTi MGs. Figure 1a shows potentiodynamic
  • offers unique methods to resolve the microscopic corrosion process in situ. Although results were reported here for metallic glasses, we suggest that the study of surface layers and charges by nanotribology can be extended to the understanding of corrosion mechanisms in other metal and alloy systems
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Published 18 Feb 2022

Thermal oxidation process on Si(113)-(3 × 2) investigated using high-temperature scanning tunneling microscopy

  • Hiroya Tanaka,
  • Shinya Ohno,
  • Kazushi Miki and
  • Masatoshi Tanaka

Beilstein J. Nanotechnol. 2022, 13, 172–181, doi:10.3762/bjnano.13.12

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  • the literature. Initial oxidation processes were identified based on high-resolution STM images. Keywords: high-index Si surface; in situ measurement; oxidation; scanning tunneling microscopy (STM); Introduction High-index silicon surfaces have drawn considerable interest for their usefulness in
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Published 03 Feb 2022

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

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  • oil to spill into water reservoirs. The lipophilic nature of the oil results in the accumulation of oil–water emulsions. Chemical treatments, mechanical recovery, in situ burning, and bioremediation are some of the primary clean-up methodologies for oil spills [65]. ENH membranes have found
  • surfactant-stabilized emulsions, respectively, was observed and obtained solely under the force of gravity [69]. Shang et al. developed superhydrophobic and superoleophilic nanofibrous membranes from electrospun CA with a novel in situ polymerized fluorinated polybenzoxazine (F-PBZ) functional layer with
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Published 31 Jan 2022

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

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  • photoinduced electrons from the CB of BiOBr to that of SnO2, thus prolonging the lifetime of photogenerated electron–hole pairs (Figure 8). The NO-to-NO2 conversion and intermediates and products were confirmed via in situ diffuse reflectance infrared Fourier transform spectroscopy during NO oxidation [70
  • environmental treatment [71]. A similar model, a Z-scheme photocatalyst, was reported by Lu et al. who successfully fabricated a ternary nanohybrid consisting of mesoporous SnO2, nitrogen-doped carbon quantum dots (NCDs), and ZnSn(OH)6 using a simple in situ solvothermal method. This nanohybrid photocatalyst
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Published 21 Jan 2022

Theranostic potential of self-luminescent branched polyethyleneimine-coated superparamagnetic iron oxide nanoparticles

  • Rouhollah Khodadust,
  • Ozlem Unal and
  • Havva Yagci Acar

Beilstein J. Nanotechnol. 2022, 13, 82–95, doi:10.3762/bjnano.13.6

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  • sensitivity the results obtained from TEM are usually more reliable [52]. The XRD pattern of SPION@bPEI synthesized in situ indicates a crystalline magnetite structure composed of both magnetite (Fe3O4) and maghemite (Fe2O3), including nanoparticles (Figure 1c). Considering only XRD patterns it would be
  • difficult to distinguish the percentage of magnetite and maghemite in magnetic nanoparticles. However, electron paramagnetic resonance (EPR) spectroscopy analysis can be applied to overcome this problem. According to EPR spectroscopy results, SPION@bPEI nanoparticles synthesized in situ were composed of 23
  • , holds great potential for effective gene/drug delivery coupled with dual-mode imaging. a) TEM image of SPION@bPEI. b) AFM micrograph image of SPION@bPEI (magnetic mode). c) X-ray diffraction pattern of SPION@bPEI prepared via the in situ coating method. Since the presence of the polymer prevented the
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Published 18 Jan 2022

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

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Published 04 Jan 2022

Design aspects of Bi2Sr2CaCu2O8+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

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  • results of in situ THz generation-detection experiment on a whisker-based device. We follow the procedure developed in [14], where details of the technique can be found. We use one mesa with the I–V like in Figure 2a as a generator, and another mesa on the same device as a switching current detector. The
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Published 21 Dec 2021

Alteration of nanomechanical properties of pancreatic cancer cells through anticancer drug treatment revealed by atomic force microscopy

  • Xiaoteng Liang,
  • Shuai Liu,
  • Xiuchao Wang,
  • Dan Xia and
  • Qiang Li

Beilstein J. Nanotechnol. 2021, 12, 1372–1379, doi:10.3762/bjnano.12.101

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  • under (almost) physiological conditions in situ. It offers nanoscale force sensitivity, the ability to work in liquid phases, and requires no staining [12][13][14]. With the development of AFM, researchers have been able to conduct extensive research on biological issues through imaging the
  • cells. The Young’s modulus of AsPC-1 cells is the smallest while that of the BxPC-3 cells is the highest. This is because AsPC-1 cells are metastatic cancer cells, which are more aggressive than the in situ cancer cells BxPC-3. This finding is consistent with previously reported results [12][31][32
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Published 14 Dec 2021

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

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

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

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  • :Eu, and TiO2:Eu layers was conducted at 200 °C. The pressure in the chamber was approximately 0.2 Pa and the distance between target and substrate was approximately 10 cm. The sputtering system was equipped with a quartz crystal microbalance for the in situ measurements of film thickness. In order to
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Published 22 Nov 2021

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

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  • interstitial fluid for point-of-care clinical diagnostics. As sensitive, rapid, early diagnosis and treatment of diseases are often critical, microneedle patches may soon play a vital role in point-of-care theranostics. By integrating microneedles with microfluidic chips capable of in situ measurements of
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Published 13 Sep 2021

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

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  • undergo a sodiation process to form Na2S2. Then, the Na2S2 intermediate is converted to Na2S. Another remarkable electrocatalyst are gold nanodots, as reported by Wang et al. [49]. The in situ synchrotron XRD results show that gold can effectively catalyze the transformation of Na2S4 into Na2S in the
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Published 09 Sep 2021

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

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  • irradiated as well as the non-irradiated area of the TEM lamella. For TEM lamella preparation, the irradiated area was immediately covered with a protective layer in situ, making oxidation unlikely. The angles between the reflections were measured to be α = 55° and β = 62° and the ratio of distances
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Published 31 Aug 2021

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

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  • successfully employed hBN to investigate the pristine properties of particular molecules. Schaal et al. [86] showed that hBN on Ni(111) electronically decoupled tetraphenyldibenzoperiflanthene such that the molecular vibronic progression was observable by in situ differential reflectance spectroscopy, which is
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Published 23 Aug 2021

In situ transport characterization of magnetic states in Nb/Co superconductor/ferromagnet heterostructures

  • Olena M. Kapran,
  • Roman Morari,
  • Taras Golod,
  • Evgenii A. Borodianskyi,
  • Vladimir Boian,
  • Andrei Prepelita,
  • Nikolay Klenov,
  • Anatoli S. Sidorenko and
  • Vladimir M. Krasnov

Beilstein J. Nanotechnol. 2021, 12, 913–923, doi:10.3762/bjnano.12.68

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  • demonstrate how FORC can be used for detailed in situ characterization of magnetic states. It reveals that upon reduction of the external field, the magnetization in ferromagnetic layers first rotates in a coherent scissor-like manner, then switches abruptly into the antiparallel state and after that splits
  • unconventional odd-frequency spin-triplet order parameter should appear. The non-hysteretic nature of this state allows for reversible tuning of the magnetic orientation. Thus, we identify the range of parameters and the procedure for in situ control of devices based on S/F heterostructures. Keywords: cryogenic
  • memory elements and spin valves [22][29][34][39][40][41][42][43]. The need for establishing experimental characterization techniques for the in situ monitoring of magnetic states in S/F micro- and nanoscale devices is our main motivation. Here we study experimentally in-plane transport properties of
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Published 17 Aug 2021

Modification of a SERS-active Ag surface to promote adsorption of charged analytes: effect of Cu2+ ions

  • Bahdan V. Ranishenka,
  • Andrei Yu. Panarin,
  • Irina A. Chelnokova,
  • Sergei N. Terekhov,
  • Peter Mojzes and
  • Vadim V. Shmanai

Beilstein J. Nanotechnol. 2021, 12, 902–912, doi:10.3762/bjnano.12.67

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  • ). Thiocholine was generated in situ by basic hydrolysis of its acetyl ether in sodium carbonate buffer at pH 10.8. The supports were soaked for 30 min in the corresponding reagent solution, washed with deionized water, and dried. Treatment with doubly charged metal ions was carried out in 5 mg/mL Cu sulfate or
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Published 16 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

A review of defect engineering, ion implantation, and nanofabrication using the helium ion microscope

  • Frances I. Allen

Beilstein J. Nanotechnol. 2021, 12, 633–664, doi:10.3762/bjnano.12.52

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  • with neon, sputtering at higher rates is made possible while retaining a small probe size. This has also opened the door to in situ materials analysis in the HIM using secondary ion mass spectrometry [8]. Further forms of materials analysis using the HIM include techniques based on the collection of
  • introduction of lattice vacancy defects, and with an increase in the average interatomic distances due to swelling, that is, a magnetovolume effect. And in a recent report implementing in situ current–voltage characterization, site-selective helium ion irradiation of cobalt-based magnetic multilayer structures
  • specimens were irradiated at room temperature with known doses of helium ions to generate the gas bubble superlattice (Figure 3c) and subsequently nanomechanical compression testing of the implanted structures was performed by in situ TEM to enable direct and quantitative observation of the superlattice
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Published 02 Jul 2021

Nanoporous and nonporous conjugated donor–acceptor polymer semiconductors for photocatalytic hydrogen production

  • Zhao-Qi Sheng,
  • Yu-Qin Xing,
  • Yan Chen,
  • Guang Zhang,
  • Shi-Yong Liu and
  • Long Chen

Beilstein J. Nanotechnol. 2021, 12, 607–623, doi:10.3762/bjnano.12.50

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  • absorption (400–700 nm) and high photogenerated charge separation rate [101]. This heterojunction realized an AQY of up to 7.5% at 420 nm. By in situ solvothermal growth of CdS nanoparticles on ultrathin polyimide (PI) nanosheets, Zou et al. [102] achieved a HER of 30.65 μmol h−1 (50 mg) with 15% CdS/PI as
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Published 30 Jun 2021

Local stiffness and work function variations of hexagonal boron nitride on Cu(111)

  • Abhishek Grewal,
  • Yuqi Wang,
  • Matthias Münks,
  • Klaus Kern and
  • Markus Ternes

Beilstein J. Nanotechnol. 2021, 12, 559–565, doi:10.3762/bjnano.12.46

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  • ) sample to 980 K and exposing it to 25 L of borazine (HBNH3) gas (Katchem spol s.r.o.). h-BN grows in a self-terminating growth process [19]. It is then transferred in situ to the nc-AFM for characterisation. (a.) Scheme of the experiment. (b.) Large-scale (200 × 125 nm2) constant-current (I = 20 pA, V
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Published 17 Jun 2021

A review on nanostructured silver as a basic ingredient in medicine: physicochemical parameters and characterization

  • Gabriel M. Misirli,
  • Kishore Sridharan and
  • Shirley M. P. Abrantes

Beilstein J. Nanotechnol. 2021, 12, 440–461, doi:10.3762/bjnano.12.36

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Published 14 May 2021

Structural and optical characteristics determined by the sputtering deposition conditions of oxide thin films

  • Petronela Prepelita,
  • Florin Garoi and
  • Valentin Craciun

Beilstein J. Nanotechnol. 2021, 12, 354–365, doi:10.3762/bjnano.12.29

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  • be, later on, integrated into metamaterial structures to improve their functionality. Experimental The VARIAN ER 3119 EletroRava deposition equipment (available at the National Institute for Laser, Plasma and Radiation Physics, INFLPR) is provided with a deposition chamber, two magnetrons, and in
  • situ thickness monitoring. Thus, rfMS [27][36][37] was used to deposit SiO2 and ZnO oxide films. This technique ensures material deposition onto large areas and quality thin films for multiple applications. They are obtained at room temperature on quartz substrates with thickness values ranging from
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Published 19 Apr 2021

Nickel nanoparticle-decorated reduced graphene oxide/WO3 nanocomposite – a promising candidate for gas sensing

  • Ilka Simon,
  • Alexandr Savitsky,
  • Rolf Mülhaupt,
  • Vladimir Pankov and
  • Christoph Janiak

Beilstein J. Nanotechnol. 2021, 12, 343–353, doi:10.3762/bjnano.12.28

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  • achieved [47]. Thermally reduced graphene oxide was tested before with different metals in ionic liquids [48][49]. The decoration of nanoparticles on rGO can be achieved in situ or by mixing previously prepared solutions [50]. Here, we chose the ionic liquid [BMIm][NTf2] for an in situ microwave
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Published 15 Apr 2021

Gold(I) N-heterocyclic carbene precursors for focused electron beam-induced deposition

  • Cristiano Glessi,
  • Aya Mahgoub,
  • Cornelis W. Hagen and
  • Mats Tilset

Beilstein J. Nanotechnol. 2021, 12, 257–269, doi:10.3762/bjnano.12.21

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  • iodides [48]. For the triazolium salt the two alkylation reactions were carried out together in a one-pot synthesis [36]. The resulting salts were then reacted with silver oxide to generate the respective Ag(I) NHC complexes. Upon the addition of 1 equiv of gold precursor Au(SMe2)Cl in situ, a
  • was obtained by reaction of 2 with a mixture of AgF and Me3SiCF3 [51]. This reaction created in situ a AgCF3 species that, through a transmetalation reaction, yielded compound 7 (Scheme 1c). All these compounds are, under ambient conditions, inert colourless crystals or white powders that are stable
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Published 17 Mar 2021

The nanomorphology of cell surfaces of adhered osteoblasts

  • Christian Voelkner,
  • Mirco Wendt,
  • Regina Lange,
  • Max Ulbrich,
  • Martina Gruening,
  • Susanne Staehlke,
  • Barbara Nebe,
  • Ingo Barke and
  • Sylvia Speller

Beilstein J. Nanotechnol. 2021, 12, 242–256, doi:10.3762/bjnano.12.20

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  • coating was measured online by a quartz crystal thickness monitor (Cressington MTM 10, UK) and the sputter process was stopped at a nominal value of approximately 10 nm. The Au layers were only applied to half of the glass area in order to create an in situ reference. Since we observed spread cells
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Published 12 Mar 2021

A review on the green and sustainable synthesis of silver nanoparticles and one-dimensional silver nanostructures

  • Sina Kaabipour and
  • Shohreh Hemmati

Beilstein J. Nanotechnol. 2021, 12, 102–136, doi:10.3762/bjnano.12.9

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  • how plant-mediated synthesis can emerge as a novel and alternative methodology towards the synthesis of 1D silver nanostructures, which have several applications in electronics. Finally, novel future directions including application of in situ characterization techniques in the course of reaction
  • , continuous green and sustainable synthesis of silver nanostructures adaptable for in situ characterization, and incorporation of artificial intelligence (AI) in green silver nanostructures synthesis are discussed. 2 Physical and chemical synthesis methodologies of silver nanoparticles In this section
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Published 25 Jan 2021
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