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Search for "contact" in Full Text gives 1184 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Multifunctional properties of bio-poly(butylene succinate) reinforced with multiwalled carbon nanotubes

  • Volodymyr Krasinskyi,
  • Krzysztof Bajer,
  • Ludmila Dulebova,
  • Nickolas Polychronopoulos,
  • Oksana Krasinska and
  • Daniel Kaczor

Beilstein J. Nanotechnol. 2025, 16, 1014–1024, doi:10.3762/bjnano.16.76

Graphical Abstract
  • roll, they exhibited different surface layer structures: a smooth surface (marked as “in”) on the side in contact with the cooling roll and a rough surface (marked as “out”) on the opposite side. The flat films obtained had a thickness of approximately 350 μm and a width of about 100 mm. A reference
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Published 03 Jul 2025

Time-resolved probing of laser-induced nanostructuring processes in liquids

  • Maximilian Spellauge,
  • David Redka,
  • Mianzhen Mo,
  • Changyong Song,
  • Heinz Paul Huber and
  • Anton Plech

Beilstein J. Nanotechnol. 2025, 16, 968–1002, doi:10.3762/bjnano.16.74

Graphical Abstract
  • cases deals with continuous cycling of a large ensemble of particles, which in contact with a liquid medium involves cooperative phenomena, such as heat dissipation, evaporation, creation of shock waves, or reorganization of formed products like fragmented clusters to new objects by ripening. Therefore
  • , it is important to understand and quantify such processes that may occur concomitantly and will affect each other. First, we develop a basic hypothesis of how laser irradiation with significant energy deposition into the system of interest (for example an aqueous colloid or solid surface in contact
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Published 02 Jul 2025

Shape, membrane morphology, and morphodynamic response of metabolically active human mitochondria revealed by scanning ion conductance microscopy

  • Eric Lieberwirth,
  • Anja Schaeper,
  • Regina Lange,
  • Ingo Barke,
  • Simone Baltrusch and
  • Sylvia Speller

Beilstein J. Nanotechnol. 2025, 16, 951–967, doi:10.3762/bjnano.16.73

Graphical Abstract
  • , Rostock University Medical Center, 18057 Rostock, Germany 10.3762/bjnano.16.73 Abstract Mitochondrial network dynamics play a key role in enabling cells to adapt to environmental changes. Fusion and fission of mitochondria, as well as their contact with other organelles, are central processes
  • diabetes mellitus [20][21]. While the inner mitochondrial membrane and its cristae structure have been extensively studied, comparatively little is known about the outer mitochondrial membrane. The outer membrane, in direct contact with the cytosol and the other organelles, plays a crucial role in cellular
  • topography is acquired. SICM is particularly well suited for biological applications, as it is a non-contact method with minimal interaction forces, preserving the native state of the sample [27]. To date, SICM investigations of mitochondria have been limited to subsarcolemmal mitochondria, specifically in
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Published 30 Jun 2025

Tendency in tip polarity changes in non-contact atomic force microscopy imaging on a fluorite surface

  • Bob Kyeyune,
  • Philipp Rahe and
  • Michael Reichling

Beilstein J. Nanotechnol. 2025, 16, 944–950, doi:10.3762/bjnano.16.72

Graphical Abstract
  • Bob Kyeyune Philipp Rahe Michael Reichling Institut für Physik, Universität Osnabrück, Barbarastraße 7, 49076 Osnabrück, Germany 10.3762/bjnano.16.72 Abstract We investigate the impact of tip changes on atomic-scale non-contact atomic force microscopy (NC-AFM) contrast formation when imaging a
  • . Keywords: atomic resolution imaging; calcium fluoride surface; interaction force; non-contact atomic force microscopy (NC-AFM); tip change; Introduction Non-contact atomic force microscopy (NC-AFM) [1] is a surface science tool that has been used to atomically resolve surfaces of semiconductor and
  • tip apex in slight contact with the surface under investigation to form a tip cluster yielding atomic contrast [18]. As structure and chemical composition of the resulting tip-terminating cluster are not known, the understanding of contrast formation with non-functionalized tips has been developed
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Published 26 Jun 2025

Focused ion beam-induced platinum deposition with a low-temperature cesium ion source

  • Thomas Henning Loeber,
  • Bert Laegel,
  • Meltem Sezen,
  • Feray Bakan Misirlioglu,
  • Edgar J. D. Vredenbregt and
  • Yang Li

Beilstein J. Nanotechnol. 2025, 16, 910–920, doi:10.3762/bjnano.16.69

Graphical Abstract
  • average grain diameter grows from 1.9 to 5.8 nm when the beam energy increases from 2 to 16 kV. With larger grain diameters, the Pt-rich particles have larger surface areas in close contact. These larger surface areas help the current to flow more easily between the Pt deposits. Therefore, the deposit
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Published 16 Jun 2025

Heat-induced transformation of nickel-coated polycrystalline diamond film studied in situ by XPS and NEXAFS

  • Olga V. Sedelnikova,
  • Yuliya V. Fedoseeva,
  • Dmitriy V. Gorodetskiy,
  • Yuri N. Palyanov,
  • Elena V. Shlyakhova,
  • Eugene A. Maksimovskiy,
  • Anna A. Makarova,
  • Lyubov G. Bulusheva and
  • Aleksandr V. Okotrub

Beilstein J. Nanotechnol. 2025, 16, 887–898, doi:10.3762/bjnano.16.67

Graphical Abstract
  • -vacuum annealing at a temperature of about 1100 °C. To exclude the influence of impurities from the air, the annealed samples were examined in situ using XPS and NEXAFS without contact with the air. XPS and NEXAFS spectroscopy investigations of heat-induced transformation of the surface of bare and Ni
  • bare PCD film and that with a nickel coating (denoted Ni-PCD) were placed on the same holder and simultaneously annealed in the vacuum chamber of the RGL-PES end-station of BESSY at 1100 °C for 15 min. After annealing, PCD and Ni-PCD films were cooled to room temperature without contact with air and
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Published 12 Jun 2025

Synchrotron X-ray photoelectron spectroscopy study of sodium adsorption on vertically arranged MoS2 layers coated with pyrolytic carbon

  • Alexander V. Okotrub,
  • Anastasiya D. Fedorenko,
  • Anna A. Makarova,
  • Veronica S. Sulyaeva,
  • Yuliya V. Fedoseeva and
  • Lyubov G. Bulusheva

Beilstein J. Nanotechnol. 2025, 16, 847–859, doi:10.3762/bjnano.16.64

Graphical Abstract
  • structure without significant formation of Mo and Na2S [19]. The carbon coating improved the electrical contact between the MoS2 agglomerates, while the sandwich-like structure of MoS2-graphene facilitated the diffusion of sodium ions [20][21]. There are various possibilities to improve the properties of
  • , after a total of 30 min of Na deposition, were annealed at 773 K for 30 min in UHV. After the annealing procedure, XPS spectra were recorded again. The samples after each step of Na deposition and annealing did not come into contact with air, their transfer between the analytical and preparation
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Published 10 Jun 2025

Supramolecular hydration structure of graphene-based hydrogels: density functional theory, green chemistry and interface application

  • Hon Nhien Le,
  • Duy Khanh Nguyen,
  • Minh Triet Dang,
  • Huyen Trinh Nguyen,
  • Thi Bang Tam Dao,
  • Trung Do Nguyen,
  • Chi Nhan Ha Thuc and
  • Van Hieu Le

Beilstein J. Nanotechnol. 2025, 16, 806–822, doi:10.3762/bjnano.16.61

Graphical Abstract
  • Zn(OH)2 constituent). ZH nanoparticles and GO nanosheets in the GO-SG-ZH hydrogel are antibacterial and antibiofilm agents with low toxicity for food packaging and biomedical applications [56][57]. The main antibacterial mechanism of GO nanosheets is cell membrane damage caused by direct contact of
  • nanoparticles. Regarding the antibacterial mechanism of the nanocomposite coating, direct contact of bacterial cells with sharp nanostructures of the coating is the cause of membrane damage and cell inactivation. Zn2+ cations released from ZH nanoparticles and reactive oxygen species generated by ZH
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Published 04 Jun 2025

Morphology and properties of pyrite nanoparticles obtained by pulsed laser ablation in liquid and thin films for photodetection

  • Akshana Parameswaran Sreekala,
  • Bindu Krishnan,
  • Rene Fabian Cienfuegos Pelaes,
  • David Avellaneda Avellaneda,
  • Josué Amílcar Aguilar-Martínez and
  • Sadasivan Shaji

Beilstein J. Nanotechnol. 2025, 16, 785–805, doi:10.3762/bjnano.16.60

Graphical Abstract
  • in the dark and under illumination. Using silver paint (Flash-Dry silver colloidal suspension, SPI® supplies), two contact electrodes with a 4 mm length and a 4 mm distance between them were prepared on the films for electrical measurements. The photoresponse curves were evaluated using light sources
  • without coming into contact with any surface electrons [64]. In summary, self-powered photodetectors operate based on the photovoltaic effect in semiconductors, where incident light generates electron–hole pairs. The resulting photocurrent arises from the separation and directs movement of these charge
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Published 03 Jun 2025

Changes of structural, magnetic and spectroscopic properties of microencapsulated iron sucrose nanoparticles in saline

  • Sabina Lewińska,
  • Pavlo Aleshkevych,
  • Roman Minikayev,
  • Anna Bajorek,
  • Mateusz Dulski,
  • Krystian Prusik,
  • Tomasz Wojciechowski and
  • Anna Ślawska-Waniewska

Beilstein J. Nanotechnol. 2025, 16, 762–784, doi:10.3762/bjnano.16.59

Graphical Abstract
  • iron oxyhydroxide core being in direct contact with saline may undergo through decomposition/degradation process. From the superparamagnetism theory, the maximum temperature observed in the ZFC dependence is closely linked to the mean value of the particle diameter in the grain nanosystem [45], and
  • its shifts to lower temperatures with a decrease in . Therefore, for the samples with the dissolution times < 12 h, the observed shift of the ZFC maximum to lower temperatures may be associated with the beginning of the decomposition process of the iron oxyhydroxide nanoparticles in contact with
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Published 02 Jun 2025

Thickness dependent oxidation in CrCl3: a scanning X-ray photoemission and Kelvin probe microscopies study

  • Shafaq Kazim,
  • Rahul Parmar,
  • Maryam Azizinia,
  • Matteo Amati,
  • Muhammad Rauf,
  • Andrea Di Cicco,
  • Seyed Javid Rezvani,
  • Dario Mastrippolito,
  • Luca Ottaviano,
  • Tomasz Klimczuk,
  • Luca Gregoratti and
  • Roberto Gunnella

Beilstein J. Nanotechnol. 2025, 16, 749–761, doi:10.3762/bjnano.16.58

Graphical Abstract
  • correlation between the microscopic results and the surface potential of CrCl3 flakes at the nanoscale level using Kelvin probe force microscopy (KPFM) [28]. KPFM is mainly employed to measure the local contact potential difference between the conductive AFM tip and the sample, allowing for high-resolution
  • SiO2/Si substrate. (a) Topography from non-contact mode AFM of two flakes with different thicknesses; (b) Kelvin surface potential of the samples on SiO2; (c) z-profiles of the two flakes; (d) Kelvin surface potential scans along the profiles of (a). A Pt-coated tip was used. (a)Topography from non
  • -contact mode AFM of flakes with two different thickness deposited on ITO; (b) Kelvin net surface potential of the samples in (a); (c) z-profiles of the two flakes; (d) Kelvin surface potential scans along the profiles of (a). A Pt-coated tip was used. Valence band spectra acquired at point L (lean) and
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Published 02 Jun 2025

Synthesis of a multicomponent cellulose-based adsorbent for tetracycline removal from aquaculture water

  • Uyen Bao Tran,
  • Ngoc Thanh Vo-Tran,
  • Khai The Truong,
  • Dat Anh Nguyen,
  • Quang Nhat Tran,
  • Huu-Quang Nguyen,
  • Jaebeom Lee and
  • Hai Son Truong-Lam

Beilstein J. Nanotechnol. 2025, 16, 728–739, doi:10.3762/bjnano.16.56

Graphical Abstract
  • a homogeneous surface. Adsorption kinetics Experimental data derived from the analysis of the effect of contact time and initial TC concentration on adsorption capacity were used to study the kinetics of TC adsorption using first-order and second-order kinetic models. Table 3 and Table 4 present the
  • material surface and TC. Additionally, the effects of contact time, pH, initial concentration, and adsorbent dosage on the TC adsorption capacity of PGC were investigated. The results indicated that equilibrium was reached after 12 h, with an optimal pH of 6–7, an adsorbent dosage of 40 mg, and an initial
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Published 27 May 2025

High-temperature epitaxial growth of tantalum nitride thin films on MgO: structural evolution and potential for SQUID applications

  • Michelle Cedillo Rosillo,
  • Oscar Contreras López,
  • Jesús Antonio Díaz,
  • Agustín Conde Gallardo and
  • Harvi A. Castillo Cuero

Beilstein J. Nanotechnol. 2025, 16, 690–699, doi:10.3762/bjnano.16.53

Graphical Abstract
  • . Atomic force microscopy (AFM, XE-70 Park Systems) in contact mode was used to study the surface morphology of the films. The synthesis protocol used in this study was modified from the work reported by Quintanar-Zamora et al. [15] by varying the substrate temperature and the nitrogen pressure. Results
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Published 22 May 2025

The impact of tris(pentafluorophenyl)borane hole transport layer doping on interfacial charge extraction and recombination

  • Konstantinos Bidinakis and
  • Stefan A. L. Weber

Beilstein J. Nanotechnol. 2025, 16, 678–689, doi:10.3762/bjnano.16.52

Graphical Abstract
  • illuminated case and we have a sufficient diffusive current flowing through the two junctions, but smaller in magnitude compared to the current flowing through an ohmic contact. Therefore, the junction exhibiting the more pronounced rectifying behavior will still limit the current flow. For our model, the
  • evaporated as a back contact under vacuum (Edwards FL 400 Au evaporator). The devices were characterized in terms of efficiency with a solar simulator (Abet Technologies, SunLite) under AM1.5 illumination. Cross-section preparation To create solar cells with exposed cross-sections, we mechanically cleaved
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Published 21 May 2025

Colloidal few layered graphene–tannic acid preserves the biocompatibility of periodontal ligament cells

  • Teissir Ben Ammar,
  • Naji Kharouf,
  • Dominique Vautier,
  • Housseinou Ba,
  • Nivedita Sudheer,
  • Philippe Lavalle and
  • Vincent Ball

Beilstein J. Nanotechnol. 2025, 16, 664–677, doi:10.3762/bjnano.16.51

Graphical Abstract
  • deposited film was put in contact with a 10−4 M DPPH solution in the absence of light, followed by the absorbance measurement at 517 nm. Biological assays Isolation and culture of PDL cells PDL cells were isolated from human alveolar ligament obtained from extracted human teeth. This study was conducted
  • activity The Alamar Blue (AB) assay was used to quantify the metabolic activity of PDL cells in direct contact with FLG and TA solutions by detecting the oxidation–reduction rate of AB [46]. This assay has gained significant popularity as a common method for examining cytotoxic effects induced by various
  • the percentage reduction in ROS levels compared to the control group. Cell morphology To assess potential changes in cell morphology induced by FLG–TA, scanning electron microscopy (SEM) was performed on treated and untreated cells after 24 and 48 h of direct contact. Cells were cultured on 12 mm
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Published 20 May 2025

Aprepitant-loaded solid lipid nanoparticles: a novel approach to enhance oral bioavailability

  • Mazhar Hussain,
  • Muhammad Farooq,
  • Muhammad Asad Saeed,
  • Muhammad Ijaz,
  • Sherjeel Adnan,
  • Zeeshan Masood,
  • Muhammad Waqas,
  • Wafa Ishaq and
  • Nabeela Ameer

Beilstein J. Nanotechnol. 2025, 16, 652–663, doi:10.3762/bjnano.16.50

Graphical Abstract
  • membrane comes in contact with the aqueous medium, it absorbs water and swells. Water penetrates the APT-loaded SLN formulations fast and passes through toward the drug core such that the drug dissolves. Diffusion is enhanced because of the equilibrium between elastic polymer strength and hydration by
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Published 15 May 2025

Nanoscale capacitance spectroscopy based on multifrequency electrostatic force microscopy

  • Pascal N. Rohrbeck,
  • Lukas D. Cavar,
  • Franjo Weber,
  • Peter G. Reichel,
  • Mara Niebling and
  • Stefan A. L. Weber

Beilstein J. Nanotechnol. 2025, 16, 637–651, doi:10.3762/bjnano.16.49

Graphical Abstract
  • study materials such as perovskite solar cells [18][19][20] and Li-ion batteries [21][22][23]. AFM enables simultaneous acquisition of topographic and electronic data by applying AC or DC voltages across the tip–sample gap, allowing for the detection of capacitive forces [24][25] or contact potential
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Published 08 May 2025

Polyurethane/silk fibroin-based electrospun membranes for wound healing and skin substitute applications

  • Iqra Zainab,
  • Zohra Naseem,
  • Syeda Rubab Batool,
  • Muhammad Waqas,
  • Ahsan Nazir and
  • Muhammad Anwaar Nazeer

Beilstein J. Nanotechnol. 2025, 16, 591–612, doi:10.3762/bjnano.16.46

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Published 24 Apr 2025

Functionalized gold nanoflowers on carbon screen-printed electrodes: an electrochemical platform for biosensing hemagglutinin protein of influenza A H1N1 virus

  • Carlos Enrique Torres-Méndez,
  • Sharmilee Nandi,
  • Klara Martinovic,
  • Patrizia Kühne,
  • Yifan Liu,
  • Sam Taylor,
  • Maria Lysandrou,
  • Maria Ines Berrojo Romeyro Mascarenhas,
  • Viktoria Langwallner,
  • Javier Enrique Sebastián Alonso,
  • Ivana Jovanovic,
  • Maike Lüftner,
  • Georgia-Vasiliki Gkountana,
  • David Bern,
  • Abdul-Raouf Atif,
  • Ehsan Manouchehri Doulabi,
  • Gemma Mestres and
  • Masood Kamali-Moghaddam

Beilstein J. Nanotechnol. 2025, 16, 540–550, doi:10.3762/bjnano.16.42

Graphical Abstract
  • process, forming stable AuNFs that remain at the surface of the electrode upon contact with water and ethanol as no change in the CV was observed after contact with these solvents (Supporting Information File 1, Figure S1). This suggests strong mechanical adhesion of the AuNFs to the CSPE surface. The
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Published 16 Apr 2025

Water in nanoporous hexagonal boron nitride nanosheets: a first-principles study

  • Juliana A. Gonçalves,
  • Ronaldo J. C. Batista and
  • Marcia C. Barbosa

Beilstein J. Nanotechnol. 2025, 16, 510–519, doi:10.3762/bjnano.16.39

Graphical Abstract
  • contact with water molecules. Our investigation revealed that triangular and rhombic pores induce wrinkles in non-deposited h-BN monolayers because of the repulsion between hydrogen orbitals at their 60° vertices. We found that the addition of N–H or B–H pairs at 60° vertices mitigates these out-of-plane
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Published 11 Apr 2025

N2+-implantation-induced tailoring of structural, morphological, optical, and electrical characteristics of sputtered molybdenum thin films

  • Usha Rani,
  • Kafi Devi,
  • Divya Gupta and
  • Sanjeev Aggarwal

Beilstein J. Nanotechnol. 2025, 16, 495–509, doi:10.3762/bjnano.16.38

Graphical Abstract
  • between these components after contact with the sample. Upon successfully fitting the results of N2+-implanted molybdenum thin films for all thickness, a small error percentage (in this case, 0.15%) between the experimental and simulated curves is observed, indicating a close match [2][44]. The simulated
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Published 01 Apr 2025

Performance optimization of a microwave-coupled plasma-based ultralow-energy ECR ion source for silicon nanostructuring

  • Joy Mukherjee,
  • Safiul Alam Mollick,
  • Tanmoy Basu and
  • Tapobrata Som

Beilstein J. Nanotechnol. 2025, 16, 484–494, doi:10.3762/bjnano.16.37

Graphical Abstract
  • contact with the plasma within the isolated plasma cup, serves to shift the plasma potential. By applying a voltage (e.g., +500 V) to the anode, the plasma potential is elevated to +500 V (plus the intrinsic plasma potential). When the sample is maintained at ground potential, the positive ions within the
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Published 31 Mar 2025

Synthetic-polymer-assisted antisense oligonucleotide delivery: targeted approaches for precision disease treatment

  • Ana Cubillo Alvarez,
  • Dylan Maguire and
  • Ruairí P. Brannigan

Beilstein J. Nanotechnol. 2025, 16, 435–463, doi:10.3762/bjnano.16.34

Graphical Abstract
  • contact with the targeted cells, ASO drugs still need to be internalised by cells and overcome internal cellular trafficking to determine their functional delivery. During this process the oligonucleotides are engulfed into endosomes and released into the cytoplasm, where they either exert their action or
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Published 27 Mar 2025

Quantification of lead through rod-shaped silver-doped zinc oxide nanoparticles using an electrochemical approach

  • Ravinder Lamba,
  • Gaurav Bhanjana,
  • Neeraj Dilbaghi,
  • Vivek Gupta and
  • Sandeep Kumar

Beilstein J. Nanotechnol. 2025, 16, 422–434, doi:10.3762/bjnano.16.33

Graphical Abstract
  • sources of lead exposure [4]. Through contaminated food or drink or through mouth-to-mouth contact, lead can enter the body. Standard techniques for determining lead content involve the use of atomic absorption spectroscopy (AAS) [5] and inductively coupled plasma–mass spectrometry (ICP–MS) [6]. Although
  • electrode can provide additional details about the electrochemical process. It can help to understand the kinetics of electron transfer reactions, analyte diffusion, and electrode surface contact mechanisms. A modified Ag@ZnO NRs electrode with greater impedance is more stable and durable. This provides
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Published 26 Mar 2025

ReactorAFM/STM – dynamic reactions on surfaces at elevated temperature and atmospheric pressure

  • Tycho Roorda,
  • Hamed Achour,
  • Matthijs A. van Spronsen,
  • Marta E. Cañas-Ventura,
  • Sander B. Roobol,
  • Willem Onderwaater,
  • Mirthe Bergman,
  • Peter van der Tuijn,
  • Gertjan van Baarle,
  • Johan W. Bakker,
  • Joost W. M. Frenken and
  • Irene M. N. Groot

Beilstein J. Nanotechnol. 2025, 16, 397–406, doi:10.3762/bjnano.16.30

Graphical Abstract
  • temperature (RT). Using a QTF as a force sensor implies that temperature fluctuations can be interpreted as height features and ultimately results in losing contact with the surface when these fluctuations exceed the setpoint of the scanner. When scanning at temperatures farther from T0, this effect becomes
  • contact with the sample surface, the seal’s maximum temperature poses a reaction temperature limitation of 600 K [11]. The vacuum is maintained by a corrosion-resistant turbo pump as well as an ion pump. A gas cabinet for gas mixing, consisting of several rotating valves, mass flow controllers, and back
  • heating filament. The qPlus sensor is mounted to a three-contact slider and controlled by a piezotube. The piezotube is outside of the reactor volume. Figure 2b shows a schematic cross section of the AFM/STM reactor together with the sample holder. For high-pressure experiments, the reactor volume needs
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Published 21 Mar 2025
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