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

• indicates the position of the cross section. (b) SEM image of this cross section. Before the FIB cut for the cross section measurement was done, an additional Pt layer was deposited with FEBID for protection. (a) Resistivity of Ga+-induced Pt deposits using the same current density and acceleration voltage

Characterization of ion track-etched conical nanopores in thermal and PECVD SiO₂ using small angle X-ray scattering

• Shankar Dutt,
• Rudradeep Chakraborty,
• Christian Notthoff,
• Pablo Mota-Santiago,
• Christina Trautmann and
• Patrick Kluth

Beilstein J. Nanotechnol. 2025, 16, 899–909, doi:10.3762/bjnano.16.68

• images do not provide robust statistical information and are prone to measurement errors. Cross-sectional SEM imaging provides limited statistical reliability as the probability of cleaving directly through a nanopore’s central axis is extremely low. This sampling bias introduces significant

• uncertainties in dimensional measurements and makes it challenging to obtain robust structural information about the nanopores. Figure 2 shows a representative 2D scattering pattern obtained from conical nanopores in thermal SiO2. This image represents the simultaneous measurement of approximately 107 parallel

• as is, and the Si substrate was not removed before SAXS measurements. The sample-to-detector distances ranged between 7.2 and 7.6 m. Data collection was performed using Pilatus 1M and Pilatus 2M detectors during different measurement cycles. A silver behenate (AgBeh) standard was used to calibrate

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

• the preparation and measurement chambers. The Na/Mo ratio on the surface of the MoS2 film is 2.0 after Na deposition for 10 min, 5.5 after additional Na deposition for 20 min, and 3.0 after annealing (Figure 4c). The corresponding Na/Mo ratios in the bulk of the MoS2 film are 1.0, 2.4, and 1.5 (Figure

Synthesis and magnetic transitions of rare-earth-free Fe–Mn–Ni–Si-based compositionally complex alloys at bulk and nanoscale

• Shabbir Tahir,
• Tatiana Smoliarova,
• Carlos Doñate-Buendía,
• Michael Farle,
• Natalia Shkodich and
• Bilal Gökce

Beilstein J. Nanotechnol. 2025, 16, 823–836, doi:10.3762/bjnano.16.62

• Co Kα radiation over a 2θ range of 20–110°. The magnetic properties of the samples were measured using a Quantum Design DynaCool physical property measurement system at temperatures ranging from 5 to 390 K under external magnetic fields up to 9 T. Synthesis of CCA NPs by PLAL The CCA colloidal NPs

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

• using the method reported in our previous paper [14][26]. Measurement of tensile properties was conducted using a universal tensile testing machine (Yang Yi Technology, 500-N load cell) and the ASTM D882-18 standard [14][27]. Results and Discussion Density functional theory calculations of intersheet

• GO-SG-ZH/PLA films are described in Figure 12 and summarized in Table 4. Additional data of measurement values and stress–strain curves are given in Supporting Information File 1, Table S1, Figure S4, Table S2, and Figure S5. Our previous paper presented that GO-ZnO coating on PLA film led to an

• shows SEM images of surfaces at the fracture of a GO-SG-ZH/PLA film generated by the tensile measurement. Conclusion Supramolecular graphene-based hydrogels are bioinspired structures which are biomimetic to natural hydration structures of cellular membranes, proteins, and other biomolecules. While

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

• discrepancies are mainly a consequence of difficulties with analysis of structural and morphological measurement results (e.g., signal obtained in X-ray diffraction (XRD) experiments is dominated by the carbohydrate). This results in very broad, hard to interpret, or even uninterpretable lines (see XRD patterns

• consequences of the dissolution process in terms of microstructural changes and interactions between iron ions. The paper is organized as follows: the “Result and Discussion” section is divided into subsections relating to the individual measurement technique used, presenting measurement results and their

• analysis for undissolved and dissolved samples. In the “Conclusion” section, the most important conclusions are presented, and the “Experimental” section describes in detail the samples and measurement used. Results and Discussion Microstructure Based on the studies and information published in [2][7][8

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

•  1. For the latter sample, we distinguished lean (L) and thick (T) flakes by optical and AFM inspection (Figure 2). The Olympus B×60 system with objective lenses of magnifications of 5×, 10×, 20×, 50×, and 100× was used to find a color scale to interpolate the AFM thickness measurement results. In

• beams. In contrast, the OSA measurement spectrum showed a Si component due to the wider beam diameter. This is further supported by the evaluation of the CrCl3 stoichiometry in the latter two cases. Table 1 displays the area under the peaks for Cl 2p and Cr 2p. The stoichiometry was determined after

Efficiency of single-pulse laser fragmentation of organic nutraceutical dispersions in a circular jet flow-through reactor

• Tina Friedenauer,
• Maximilian Spellauge,
• Alexander Sommereyns,
• Verena Labenski,
• Tuba Esatbeyoglu,
• Christoph Rehbock,
• Heinz P. Huber and
• Stephan Barcikowski

Beilstein J. Nanotechnol. 2025, 16, 711–727, doi:10.3762/bjnano.16.55

• experiments of IrO2 [14], is not ruled out, but these cannot be detected with the measurement methods used for organic materials. The number-weighted particle size distribution determined via SEM in Figure 3C at the example of 0.1 wt % curcumin shows that the initially polydisperse, bimodal distribution with

• profiles according to ISO 13318-3 [84]. Before the measurement, untreated and laser-generated CBD suspensions of all concentrations were redispersed in an ultrasonic bath. The sedimentation

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

• physical property measurement system. To achieve temperatures below 4.2 K, a vacuum pump was used to reduce the pressure on the helium bath. This technique allows the liquid helium temperature to be lowered to approximately 1.8 K. Reducing the vapor pressure provides an efficient method to reach 2.0 K

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

• in solar cells based on these materials. To do so on operating solar cells, we created samples with exposed cross-sections and examined their potential profile distributions with Kelvin probe force microscopy (KPFM), implementing our comprehensive measurement protocol. Using the Lewis acid tris

• force microscopy (KPFM) is an important tool for conducting such studies, enabling the measurement of the perovskite’s surface potential by monitoring the electrostatic force between the surface and a conductive probe (See Supporting Information File 1, Section 1). This measurement can provide insights

• -sections by means of argon ion polishing. To get results that closely simulate the operation of working devices, we used a comprehensive static KPFM measurement protocol (See Supporting Information File 1, Section 2) and measured potential profiles across all layers while applying a voltage or under

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

• 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

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

• , 141.3 ± 0.62, 121.1 ± 0.72, 257.6 ± 0.37, 229.5 ± 0.94, 207.2 ± 0.63, and 191.0 ± 0.57 nm, respectively (Table 1). An exemplary measurement for APT-CD-NP4 is given in Figure 2. The SLNs with lower particle size provide a large surface area, which increases drug release and enhances drug absorption by

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

• , enabling the measurement of the local dielectric function over a wide range of frequencies. We demonstrate the reliable operation of MFH-EFM using standard atomic force microscopy equipment plus an external lock-in amplifier up to a frequency of 5 MHz, which can in principle be extended to gigahertz

• to at least 50 MHz, limited by the bandwidth of the LIA. To reach a nanoscale-sensitive measurement of the dielectric constant in media besides air, a detection at higher excitation frequencies in the megahertz regime is strictly necessary [59]. The indirect detection of local capacitance variations

• by means of an electrostatic force has the advantage that it does not require additional devices for the measurement except for the LIA similar to that in the work of Gramse and colleagues [56]. Nevertheless, quantifying the total tip–sample capacitance will require varying the distance, for example

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

• measurement employing the standard DPV experiment (n = 3), a decrease in current response of 3.1% was observed (Figure 8) in comparison to a measurement without the microfluidics system. This decrease was probably due to a slight reduction in the surface area of the working electrode once the biosensor was

• standard solutions of H1 protein. (b) Calibration curve determined as the dependence of the change in current on the logarithm of the H1 protein concentration. DPV measurement of the BSA/mAbs/4-ATP/AuNFs/CSPE recorded in 0.1 M KCl containing 5 mM [Fe(CN)6]3−/4−. Microfluidics design for point-of-care

Electron beam-based direct writing of nanostructures using a palladium β-ketoesterate complex

• Chinmai Sai Jureddy,
• Krzysztof Maćkosz,
• Aleksandra Butrymowicz-Kubiak,
• Iwona B. Szymańska,
• Patrik Hoffmann and
• Ivo Utke

Beilstein J. Nanotechnol. 2025, 16, 530–539, doi:10.3762/bjnano.16.41

• ). Interestingly, a fivefold increase in electron flux from 4 × 103 to 2 × 104 electrons·nm−2·s−1 (i.e., a current increase from 0.7 to 4.7 nA) in our experiments did not influence the composition within the EDX measurement error of about 5 atom %. However, a 4.5-fold increase in the growth rate was observed from

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

• maximum eccentric tilt angle of ±70°. Sample preparation for cross sectional TEM measurement involved mechanically grinding the substrate into a circular disk with a diameter of 3 mm and a thickness of approximately 100 μm. The disk was then subjected to dimpling to achieve uniform thinning. To further

• sputtering of silicon oxide and the elemental silicon is different, which leads to instabilities during bombardment and the development of nanopatterns on the surface. Further, the exposure of the nanopatterned silicon surface to air during optical measurement ensures the formation of non-uniform silicon

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

• are deposited on an oxide layer representing realistic and relevant industrial catalysts. Here, the reaction conditions exceed the temperature limit of the qPlus sensor used in that measurement. Therefore, we show AFM images taken below the reaction temperature, before and after the reaction takes

Engineered PEG–PCL nanoparticles enable sensitive and selective detection of sodium dodecyl sulfate: a qualitative and quantitative analysis

• Soni Prajapati and
• Ranjana Singh

Beilstein J. Nanotechnol. 2025, 16, 385–396, doi:10.3762/bjnano.16.29

• within the 0.01 μg/mL measurement range, rendering the process cumbersome [21]. Also, an instrument is required among all the reported techniques, making detecting SDS at a target site complicated for the non-technical person. Therefore, there is an urge to develop a simple, colorimetric, rapid, nontoxic

• , UK). Dried 10 mg/mL PEG–PCL NPs were dissolved in PBS and sonicated for 30 min. The sonicated sample was taken in a cuvette for measurement. The sample pH was in the range of 7.2–7.4. Separate cuvettes (DTS1072 and DTS0012) were used to measure the surface charge and average size of the nanoparticles

• presence of peaks at 2349 and 2073 cm−1 might be due to ambient CO2 absorption or other environmental factors during measurement. This spectral analysis confirms the successful incorporation of PEG and PCL into the nanoparticle structure, showing their characteristic functional groups and molecular

Pulsed laser in liquid grafting of gold nanoparticle–carbon support composites

• Madeleine K. Wilsey,
• Teona Taseska,
• Qishen Lyu,
• Connor P. Cox and
• Astrid M. Müller

Beilstein J. Nanotechnol. 2025, 16, 349–361, doi:10.3762/bjnano.16.26

• slit, a 5.0 mm secondary slit, and a 2.5 mm anti-scatter screen, and a Lynxeye detector. Each measurement was performed with a resolution of 0.020° in 2θ and 0.5 s per step dwell time, resulting in approximately 40 min per sample. Background subtraction was performed using Bruker DIFFRAC.SUITE software

Tailoring of physical properties of RF-sputtered ZnTe films: role of substrate temperature

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

Beilstein J. Nanotechnol. 2025, 16, 333–348, doi:10.3762/bjnano.16.25

• ZnTe film samples (width of film × thickness of film), and l corresponds to the distance between the probes (1 cm) while taking the measurement. The measured values of resistance, resistivity, and conductivity are presented in Table 5. The conductivity of the ZnTe films increases (from 1.42 × 10−8 to

Graphene oxide–chloroquine conjugate induces DNA damage in A549 lung cancer cells through autophagy modulation

• Braham Dutt Arya,
• Sandeep Mittal,
• Prachi Joshi,
• Alok Kumar Pandey,
• Jaime E. Ramirez-Vick,
• Govind Gupta and
• Surinder P. Singh

Beilstein J. Nanotechnol. 2025, 16, 316–332, doi:10.3762/bjnano.16.24

• (or comet assay) reveals a significant dose-dependent increase in tail length, tail DNA percentage, and Olive tail moment as a measurement of genotoxicity in GO–Chl-exposed A549 cells. To access the role of autophagy modulation by the GO–Chl nanoconjugate, we have employed MDC staining, confocal

• ), and deconvoluted fitting components (multicolored regions) are also shown here. Quantitative estimation of Chl binding onto GO nanosheets using UV–vis spectroscopy: (a) Optical density measurement of various concentrations (2.5–25 µg/mL) of Chl for the preparation of a standard calibration curve. (b

• ) Linearity plot (R2 ≈ 0.997) prepared by measuring the relative optical density for different concentrations of Chl, and (c) optical density measurement of the supernatant having unattached Chl. Analysis of cellular internalization of GO–Chl nanoconjugates in A549 cells: (a) Transmission electron micrographs

Enhancing mechanical properties of chitosan/PVA electrospun nanofibers: a comprehensive review

• Nur Areisman Mohd Salleh,
• Amalina Muhammad Afifi,
• Fathiah Mohamed Zuki and
• Hanna Sofia SalehHudin

Beilstein J. Nanotechnol. 2025, 16, 286–307, doi:10.3762/bjnano.16.22

• modulus (or elastic modulus) is a measurement of elasticity, which describes the stiffness of nanofibers and is calculated as the ratio of stress to strain in the elastic deformation region, which is the slope of the initial linear region of the stress–strain curve. Elongation at break measures the extent

• concentration because of improved coverage of the chitosan shell layer as observed from TEM images of the fiber. The different methods used in the measurement of chitosan/PVA nanofiber properties are summarized in Table 6. These methods allow for comprehensive characterization of the mechanical properties of

Radiosensitizing properties of dual-functionalized carbon nanostructures loaded with temozolomide

• Radmila Milenkovska,
• Nikola Geskovski,
• Dushko Shalabalija,
• Ljubica Mihailova,
• Petre Makreski,
• Dushko Lukarski,
• Igor Stojkovski,
• Maja Simonoska Crcarevska and
• Kristina Mladenovska

Beilstein J. Nanotechnol. 2025, 16, 229–251, doi:10.3762/bjnano.16.18

Synthesis and the impact of hydroxyapatite nanoparticles on the viability and activity of rhizobacteria

• Bedah Rupaedah,
• Indrika Novella,
• Atiek Rostika Noviyanti,
• Diana Rakhmawaty Eddy,
• Anna Safarrida,
• Abdul Hapid,
• Zhafira Amila Haqqa,
• Suryana Suryana,
• Irwan Kurnia and
• Fathiyah Inayatirrahmi

Beilstein J. Nanotechnol. 2025, 16, 216–228, doi:10.3762/bjnano.16.17

• ) and precise digital measurement of electrical conductivity (Mettler Toledo, MC 226 conductivity meter). Preparation of inoculum and formulation of rhizobacteria-nHA nHA was carefully placed into 2 mL EP tubes and underwent sterilization through autoclaving. The rhizobacteria were introduced into

Probing the potential of rare earth elements in the development of new anticancer drugs: single molecule studies

• Josiane A. D. Batista,
• Rayane M. de Oliveira,
• Carlos H. M. Lima,
• Milton L. Lana Júnior,
• Virgílio C. dos Anjos,
• Maria J. V. Bell and
• Márcio S. Rocha

Beilstein J. Nanotechnol. 2025, 16, 187–194, doi:10.3762/bjnano.16.15

• the two main mechanical parameters in the entropic regime, that is, the contour and persistence lengths of the DNA molecule. To guarantee the accuracy of the results, the chosen DNA is stretched using only low forces (<5 pN); this type of measurement is repeated six times, obtaining the average values