Sidewall angle tuning in focused electron beam-induced processing

• Sangeetha Hari,
• Willem F. van Dorp,
• Johannes J. L. Mulders,
• Piet H. F. Trompenaars,
• Pieter Kruit and
• Cornelis W. Hagen

Beilstein J. Nanotechnol. 2024, 15, 447–456, doi:10.3762/bjnano.15.40

• sidewall. This suggests that etching can be carried out at any position on the sidewall if the right dose can be applied to make it vertical. From a practical point of view, it would be advantageous if this entire process, etching as well as imaging, could be implemented in situ in the SEM. The above

• also been carried out in situ in an SEM. Making use of the phenomenon of enhanced SE emission from an edge, the evolution of the sidewall angle during etching was continuously monitored using the SE signal. It has been demonstrated that this technique is sufficiently sensitive to determine the dose at

On the mechanism of piezoresistance in nanocrystalline graphite

• Sandeep Kumar,
• Simone Dehm and
• Ralph Krupke

Beilstein J. Nanotechnol. 2024, 15, 376–384, doi:10.3762/bjnano.15.34

• . However, a hysteresis is observed between forward and reverse sweeps, indicating that structural changes in the films occur, which are in part irreversible. To gain insights into the strain distribution in the strained NCG, we performed in situ Raman measurements with strain as shown in Figure 3a. The

• , and parameters were extracted. While the paper offers an overview of piezoresistance in NCG, a more in-depth study is imperative for a complete comprehension of the system’s complexity. In situ FTIR measurements could provide additional insights into changes in doping and defects with strain

• from Elsevier. This content is not subject to CC BY 4.0.) (a) Piezoresistance measurement setup enabling in situ Raman measurements under strain. (b) Raman spectra of NCG on glass with increasing strain from 0% (bottom) to 0.36% (top). Curves were shifted for clarity. (c) Comparison of full-range Raman

Modulated critical currents of spin-transfer torque-induced resistance changes in NiCu/Cu multilayered nanowires

• Mengqi Fu,
• Roman Hartmann,
• Julian Braun,
• Sergej Andreev,
• Torsten Pietsch and
• Elke Scheer

Beilstein J. Nanotechnol. 2024, 15, 360–366, doi:10.3762/bjnano.15.32

• around 1 µm. The electrodeposition of multilayered nanowires was carried out in situ using a three-electrode potentiostat in the pulsed mode [20] at 25 °C. Note that the nanowires were selectively deposited in the pores on the top of the Ti/Au bottom electrodes as shown in Figure 1a. Therefore, most of

Design, fabrication, and characterization of kinetic-inductive force sensors for scanning probe applications

• August K. Roos,
• Ermes Scarano,
• Elisabet K. Arvidsson,
• Erik Holmgren and
• David B. Haviland

Beilstein J. Nanotechnol. 2024, 15, 242–255, doi:10.3762/bjnano.15.23

• equilibrium. With AFM, this is typically done by optoelectronic means, using either interferometry [9][10][11] or beam deflection [12][13][14]. These optical methods often require delicate in situ alignment of the detector to the mechanical force transducer. An integrated detector requiring no alignment is

Quantitative wear evaluation of tips based on sharp structures

• Ke Xu and
• Houwen Leng

Beilstein J. Nanotechnol. 2024, 15, 230–241, doi:10.3762/bjnano.15.22

• , electron microscope methods have limitations in that they only provide a projected two-dimensional (2D) view of the tip, making in situ measurements impossible. Installation and removal of the AFM tip are time-consuming processes, rendering them unsuitable for widespread use in quantitative tip wear

• . Additionally, the use of sharp structures allows for in-situ characterization of the tip, overcoming the disadvantage of needing to disassemble the tip for examination with a scanning electron microscope. Furthermore, this study investigates how scanning parameters, such as free amplitude, scanning frequency

Ion beam processing of DNA origami nanostructures

• Leo Sala,
• Agnes Zerolová,
• Violaine Vizcaino,
• Alain Mery,
• Alicja Domaracka,
• Hermann Rothard,
• Philippe Boduch,
• Dominik Pinkas and
• Jaroslav Kocišek

Beilstein J. Nanotechnol. 2024, 15, 207–214, doi:10.3762/bjnano.15.20

• seen, for ion beam irradiation in air. The height profiles may also be sensitive to environmental conditions especially the nature and availability of counterions [52]; hence, there is a need for in situ chemical analysis to fundamentally explore these effects, which are, at the moment, complicated to

Graphene removal by water-assisted focused electron-beam-induced etching – unveiling the dose and dwell time impact on the etch profile and topographical changes in SiO₂ substrates

• Aleksandra Szkudlarek,
• Jan M. Michalik,
• Inés Serrano-Esparza,
• Zdeněk Nováček,
• Veronika Novotná,
• Piotr Ozga,
• Czesław Kapusta and
• José María De Teresa

Beilstein J. Nanotechnol. 2024, 15, 190–198, doi:10.3762/bjnano.15.18

• exposed lines for all used dose values and dwell times (Figure 1C.i–iii), whose origin we discuss further in the subsequent section of the manuscript. The SEM and in situ AFM signals (Figure 1B, Figure 1C) are integrated into CPEM data, which yields additional insight into the substrate morphology. Apart

• presence of water on the SiO2 substrate, we performed in situ experiments with an AFM microscope (LitesScopeTM) installed inside the SEM chamber, which allows measuring the profiles directly after electron beam exposure without contact with ambient air. The lines were directly patterned on the SiO2

• AFM profiles measured in situ, we cannot exclude that it appears after taking out the sample and exposing it to air and ambient pressure. This effect, to the best of our knowledge, is firstly reported in this work and has not been mentioned in prior research on water-assisted FEBIE etching of graphene

Modification of graphene oxide and its effect on properties of natural rubber/graphene oxide nanocomposites

• Nghiem Thi Thuong,
• Le Dinh Quang,
• Vu Quoc Cuong,
• Cao Hong Ha,
• Nguyen Ba Lam and
• Seiichi Kawahara

Beilstein J. Nanotechnol. 2024, 15, 168–179, doi:10.3762/bjnano.15.16

• rolling resistance and enhance the wet grip of rubber materials. Recently, the usage of silane coupling agents as monomers to generate in situ nanosilica into NR has been found to enhance the mechanical properties of NR. Kawahara et al. [17] used vinyltriethoxysilane (VTES) as a silane monomer for

• grafting on NR to form an in situ nanosilica nanomatrix. The formation of nanosilica particles improved the thermal and mechanical properties of the graft copolymer. Furthermore, a well-controlled nanosilica nanomatrix structure in NR has been achieved in our previous work [18], where VTES was grafted onto

In situ optical sub-wavelength thickness control of porous anodic aluminum oxide

• Aleksandrs Dutovs,
• Raimonds Popļausks,
• Oskars Putāns,
• Vladislavs Perkanuks,
• Aušrinė Jurkevičiūtė,
• Tomas Tamulevičius,
• Uldis Malinovskis,
• Iryna Olyshevets,
• Donats Erts and
• Juris Prikulis

Beilstein J. Nanotechnol. 2024, 15, 126–133, doi:10.3762/bjnano.15.12

• the reflectance spectra to a multilayer model of a water–PAAO–aluminum system using the transfer-matrix method (TMM) [22]. Previously, TMM has been employed only for post-production thickness analysis of PAAO-based stratified systems [13][23]. In the present study, it allowed for continuous in situ

• anodization, however, the pores are filled with electrolyte and reaction products. Therefore the value neff = 1.65 used for in situ thickness control was higher than that of dry PAAO and lower than that of pure Al2O3. It resulted in satisfactory fits of the TMM model function to the recorded reflectance

• refined model with multiple phases and make real-time fitting difficult. However, for a thickness of approximately 250–300 nm and above, fitting to a single PAAO layer and an effective RI is sufficient for reliable in situ thickness monitoring. For improved accuracy, the system can be calibrated using

Nanotechnological approaches in the treatment of schistosomiasis: an overview

• Lucas Carvalho,
• Michelle Sarcinelli and
• Beatriz Patrício

Beilstein J. Nanotechnol. 2024, 15, 13–25, doi:10.3762/bjnano.15.2

• organoleptic properties of PZQ [8][48]. da Fonseca et al. [8] used poly(methyl methacrylate) nanoparticles loaded with PZQ produced by in situ mini emulsion polymerizations to mask the drug taste and develop an oral formulation. Although the taste was masked, the authors reported a gritty tongue sensation

Determination of the radii of coated and uncoated silicon AFM sharp tips using a height calibration standard grating and a nonlinear regression function

• Perawat Boonpuek and
• Jonathan R. Felts

Beilstein J. Nanotechnol. 2023, 14, 1200–1207, doi:10.3762/bjnano.14.99

• do not know the exact values of the AFM tip radius. There are many techniques of in situ measurements for determining the actual AFM tip radius, but they are limited to uncoated tips. This paper presents an alternative and simple method to determine the radii of coated tips and an uncoated tip. Pt

• in situ determinations of the tip characterizer shape revealed that the radius of curvature of the Si corner edge of the standard grating is sharper (usually <2 nm [16]) than the tip end. Although we do not know the exact value of the edge radius of the height grate from its specification sheet for

• -coated tip radius) with standard deviations (STDs) of 0.33, 0.28, and 0.70 nm, respectively. Conclusion Three different AFM tips underwent actual tip radius measurements using an in situ probe characterizer (HS-20MG Height Calibration Grating Standard) under sub-nanonewton scanning load. The curvature

A combined gas-phase dissociative ionization, dissociative electron attachment and deposition study on the potential FEBID precursor [Au(CH₃)₂Cl]₂

• Elif Bilgilisoy,
• Ali Kamali,
• Thomas Xaver Gentner,
• Gerd Ballmann,
• Sjoerd Harder,
• Hans-Peter Steinrück,
• Hubertus Marbach and
• Oddur Ingólfsson

Beilstein J. Nanotechnol. 2023, 14, 1178–1199, doi:10.3762/bjnano.14.98

A multi-resistance wide-range calibration sample for conductive probe atomic force microscopy measurements

• François Piquemal,
• Khaled Kaja,
• Pascal Chrétien,
• José Morán-Meza,
• Frédéric Houzé,
• Christian Ulysse and
• Abdelmounaim Harouri

Beilstein J. Nanotechnol. 2023, 14, 1141–1148, doi:10.3762/bjnano.14.94

• work, we demonstrate the development of a multi-resistance reference sample for calibrating resistance measurements in conductive probe atomic force microscopy (C-AFM) covering the range from 100 Ω to 100 GΩ. We present a comprehensive protocol for in situ calibration of the whole measurement circuit

Properties of tin oxide films grown by atomic layer deposition from tin tetraiodide and ozone

• Kristjan Kalam,
• Peeter Ritslaid,
• Tanel Käämbre,
• Aile Tamm and
• Kaupo Kukli

Beilstein J. Nanotechnol. 2023, 14, 1085–1092, doi:10.3762/bjnano.14.89

• pulse length for the iodide precursor, the SnI4–O3 process was, at first, examined in situ using a quartz crystal microbalance (QCM) [17]. The QCM data were acquired with a Q-pod quartz crystal monitor (Inficon) at a stabilized reactor temperature of 300 °C. For the film growth for ex situ measurements

• experiments. Concurrently with the determination of the film thickness via ex situ measurements, the film growth upon cycling precursor pulses and purge periods was monitored in real time. The in situ monitoring helped in the visualization of the stepwise growth process (Figure 2). One can see that the

Dual-heterodyne Kelvin probe force microscopy

• Benjamin Grévin,
• Fatima Husainy,
• Dmitry Aldakov and
• Cyril Aumaître

Beilstein J. Nanotechnol. 2023, 14, 1068–1084, doi:10.3762/bjnano.14.88

• cantilevers (PPP-EFM, Nanosensors, resonance frequency in the range 45–115 kHz), annealed in situ to remove atmospheric contaminants. The dual-heterodyne KPFM mode was implemented by combining the SPM unit with two digital lock-ins from Zurich Instruments (lock-in 1: MFLI, lock-in 2: HF2LI). Both are equipped

• substrate (HOPG). For these tests, the sample was electrically connected to the AWG (channel 1 in Figure 1) by mounting the HOPG substrate onto a sample holder designed with in situ electrical contacts [11]. The results of four measurements with different pump signals are shown in Figure 2. In all cases the

Metal-organic framework-based nanomaterials for CO₂ storage: A review

• Ha Huu Do,
• Iqra Rabani and
• Hai Bang Truong

Beilstein J. Nanotechnol. 2023, 14, 964–970, doi:10.3762/bjnano.14.79

• ]. The authors used carboxylic acids to modify graphene nanolayers, and then performed in situ synthesis of different MOF-74 materials on the graphene matrix via a solvothermal method (Figure 5). Although the surface area of composites was only slightly increased compared to the initial materials, the

Ni, Co, Zn, and Cu metal-organic framework-based nanomaterials for electrochemical reduction of CO₂: A review

• Ha Huu Do and
• Hai Bang Truong

Beilstein J. Nanotechnol. 2023, 14, 904–911, doi:10.3762/bjnano.14.74

• accessibility to active sites and unstable MOFs/substrate interfaces. Therefore, further studies are required to develop binder-free electrodes by in situ synthesis of MOFs on conductive substrates, such as nickel foam, copper foil, and carbon cloth, to overcome the aforementioned limitations and advancing the

Two-dimensional molecular networks at the solid/liquid interface and the role of alkyl chains in their building blocks

• Suyi Liu,
• Yasuo Norikane and
• Yoshihiro Kikkawa

Beilstein J. Nanotechnol. 2023, 14, 872–892, doi:10.3762/bjnano.14.72

• resolution. (ii) Post-reaction is available by external stimuli such as the addition of metal ions for metal coordination, light irradiation for photoreaction, and post-blending of other molecules. (iii) The dynamic process of the 2D structural change (caused by the external stimuli) can be followed in situ

• ). One of the three alkyl chains was considered to deviate from the HOPG surface. Upon decreasing the concentration of the solution either in situ (adding more solvent to HOPG) or ex situ (simple dilution), all alkyl chains adsorbed on the HOPG surface formed striped (Figure 3b,e) or porous structures

• structures (OCn < CCn, n = even, Figure 13d). In situ addition of the blend partner enabled the alteration of the blend ratio, offering direct observation of the dynamic process of 2D structural changes in both ways, that is, from star to lozenge, from twist-like to linear structures, and vice versa. These

Silver nanoparticles loaded on lactose/alginate: in situ synthesis, catalytic degradation, and pH-dependent antibacterial activity

• Nguyen Thi Thanh Tu,
• T. Lan-Anh Vo,
• T. Thu-Trang Ho,
• Kim-Phuong T. Dang,
• Van-Dung Le,
• Phan Nhat Minh,
• Chi-Hien Dang,
• Vinh-Thien Tran,
• Van-Su Dang,
• Tran Thi Kim Chi,
• Hieu Vu-Quang,
• Radek Fajgar,
• Thi-Lan-Huong Nguyen,
• Van-Dat Doan and
• Thanh-Danh Nguyen

Beilstein J. Nanotechnol. 2023, 14, 781–792, doi:10.3762/bjnano.14.64

• Biotechnology and Food Technology, Industrial University of Ho Chi Minh City, Ho Chi Minh City, Vietnam Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City, Ho Chi Minh City, Vietnam 10.3762/bjnano.14.64 Abstract We present the in situ synthesis of silver nanoparticles (AgNPs) through

• an in situ reduction process that requires no additional chemicals [16][17]. This technique using polysaccharides such as alginate [18] or chitosan [19] in conjunction with reducing agents enhanced cost efficiency and reduced the amounts of impurities or toxic compounds. AgNPs are widely used as

• loaded onto the nanocomposite [37][39], followed by reduction using plant extract [36][38]. In the present work, we have developed an in situ synthesis method for AgNPs using an alginate composite with lactose as reducing sugar. This method involves the use of lactose as a negatively charged compound

In situ magnesiothermic reduction synthesis of a Ge@C composite for high-performance lithium-ion batterie anodes

• Ha Tran Huu,
• Ngoc Phi Nguyen,
• Vuong Hoang Ngo,
• Huy Hoang Luc,
• Minh Kha Le,
• Minh Thu Nguyen,
• My Loan Phung Le,
• Hye Rim Kim,
• In Young Kim,
• Sung Jin Kim,
• Van Man Tran and
• Vien Vo

Beilstein J. Nanotechnol. 2023, 14, 751–761, doi:10.3762/bjnano.14.62

• report an in situ magnesiothermic reduction to synthesize a composite of Ge@C as an anode material for lithium-ion batteries. The obtained electrode delivered a specific capacity of 454.2 mAh·g−1 after 200 cycles at a specific current of 1000 mA·g−1. The stable electrochemical performance and good rate

• contact formation during in situ synthesis. Keywords: Ge anode; in situ synthesis; lithium-ion batteries; magnesiothermic reduction; Introduction The significantly increasing energy consumption leads to the exhaustion of fossil fuel sources such as coal, oil, and natural gas. Additionally, there are

• nanoparticles and a carbon matrix using a hydrothermal route has been reported, and the enhancement in the electrochemical performance of Ge@C electrodes was demonstrated [33]. In this work, a one-pot synthesis route has been followed to prepare a Ge@C composite using an in situ magnesiothermic reduction of

Cross-sectional Kelvin probe force microscopy on III–V epitaxial multilayer stacks: challenges and perspectives

• Mattia da Lisca,
• José Alvarez,
• James P. Connolly,
• Nicolas Vaissiere,
• Karim Mekhazni,
• Jean Decobert and
• Jean-Paul Kleider

Beilstein J. Nanotechnol. 2023, 14, 725–737, doi:10.3762/bjnano.14.59

• cm−3 to 2.5 × 1019 cm−3. The first part of the structure was used to measure the growth rate of the non-intentionally doped InP layers (InP:nid) at surface temperatures of 600 and 640 °C. The reflectance signal, monitored with an in situ Laytec EpiCurve TT tool, did not show any difference between

The microstrain-accompanied structural phase transition from h-MoO₃ to α-MoO₃ investigated by in situ X-ray diffraction

• Zeqian Zhang,
• Honglong Shi,
• Boxiang Zhuang,
• Minting Luo and
• Zhenfei Hu

Beilstein J. Nanotechnol. 2023, 14, 692–700, doi:10.3762/bjnano.14.55

• Sciences, Beijing, 100190, China 10.3762/bjnano.14.55 Abstract In situ X-ray diffraction indicates that the structural phase transition from h-MoO3 to α-MoO3 is a first-order transition with a phase transition temperature range of 378.5–443.1 °C. The linear coefficients of thermal expansion of h-MoO3 are

• α-MoO3 is still unclear. Here, to reveal the features of the structural phase transition from h-MoO3 to α-MoO3, we performed in situ X-ray diffraction experiments at temperatures ranging from 30 to 450 °C. The Rietveld refinement results indicate water molecules at the (0 0 0.25) site inside the

• α-MoO3 To observe the crystal structure evolution of h-MoO3 induced by temperature, a thoroughly powdered sample was used to perform in situ X-ray diffraction measurements during heating from 30 to 450 °C, as shown in Figure 1a. At 30 °C, all diffraction peaks can be well indexed to the hexagonal

Metal-organic framework-based nanomaterials as opto-electrochemical sensors for the detection of antibiotics and hormones: A review

• Akeem Adeyemi Oladipo,
• Saba Derakhshan Oskouei and
• Mustafa Gazi

Beilstein J. Nanotechnol. 2023, 14, 631–673, doi:10.3762/bjnano.14.52

• , in situ analyte monitoring, and potential miniaturization. Portability, miniaturisation, and fast signal responses are just a few of the breakthroughs in sensor design made possible by nanomaterials. Nanomaterials are becoming a key component of the analytical procedures required for pharmaceutical

• based on nanostructured materials has great potential to enhance both the selectivity and sensitivity of electrochemical sensors [55][56]. Even though various sensor systems based on nanomaterials have been published in the literature, it is still difficult to incorporate them into common in situ

ZnO-decorated SiC@C hybrids with strong electromagnetic absorption

• Liqun Duan,
• Zhiqian Yang,
• Yilu Xia,
• Xiaoqing Dai,
• Jian’an Wu and
• Minqian Sun

Beilstein J. Nanotechnol. 2023, 14, 565–573, doi:10.3762/bjnano.14.47

• amorphous state (Figure 2e). The carbon shell may have a positive effect on the nucleation of ZnO particles. This is because oxygen-containing functional groups (such as carboxyl and hydroxy groups) and structural defects are generated on the SiC@C surface during the in situ carbonization [24], which both

Molecular nanoarchitectonics: unification of nanotechnology and molecular/materials science

• Katsuhiko Ariga

Beilstein J. Nanotechnol. 2023, 14, 434–453, doi:10.3762/bjnano.14.35

• intermediates, and the final product were identified in situ by differential conductance imaging using a CO-modified tip. The bias voltage was set above the lowest unoccupied molecular orbital energy and the probe was placed over the C–Br bond, which was then broken. After the reaction, a dip appeared on the

• extended π-carbon systems is an important process for spintronics applications. On-surface synthetic nanoarchitectonics Besides manipulating molecules and atoms with a tip, in situ observation of specific chemical reactions occurring on surfaces with a probe microscope is a very significant approach to