Electrospun polysuccinimide scaffolds containing different salts as potential wound dressing material

• Veronika Pálos,
• Krisztina S. Nagy,
• Rita Pázmány,
• Krisztina Juriga-Tóth,
• Bálint Budavári,
• Judit Domokos,
• Dóra Szabó,
• Ákos Zsembery and
• Angela Jedlovszky-Hajdu

Beilstein J. Nanotechnol. 2024, 15, 781–796, doi:10.3762/bjnano.15.65

• ][37]. This study aimed to create a two-component polymer-composite scaffold as a potential wound dressing material by electrospinning, using antibacterial salts (Zn(O2CCH3)2 or Sr(NO3)2) in addition to PSI. We performed the following experiments: physical and chemical characterization of the fibers by

• powder was dried at 40 °C and stored at room temperature. Based on our previous publications, the molecular weight of the polymer is 28 500 ± 3000 Da [44]. Preparation and characterization of the solutions The preparation of solutions for electrospinning was the following: a 25% (w/w) mixture was made

• ). Results and Discussion To create a proper wound dressing material containing inorganic salt for potential antibacterial purposes, the first step was the synthesis of the polymer, the characterization of the solution, and the final scaffold with different techniques. Characterization of solutions and

Exploring surface charge dynamics: implications for AFM height measurements in 2D materials

• Mario Navarro-Rodriguez,
• Andres M. Somoza and
• Elisa Palacios-Lidon

Beilstein J. Nanotechnol. 2024, 15, 767–780, doi:10.3762/bjnano.15.64

• addition, it can be integrated with classical optical spectroscopy methods such as Raman and fluorescence [20][28][29], enabling a multidimensional characterization approach. A well-recognized issue within the AFM community is the inaccurate height determination derived from topography images on

Green synthesis of biomass-derived carbon quantum dots for photocatalytic degradation of methylene blue

• Dalia Chávez-García,
• Mario Guzman,
• Viridiana Sanchez and
• Rubén D. Cadena-Nava

Beilstein J. Nanotechnol. 2024, 15, 755–766, doi:10.3762/bjnano.15.63

• 24 h, CQDs were successfully synthesized. A comprehensive characterization of the CQDs was performed using UV–visible spectroscopy, Fourier-transform infrared spectroscopy, dynamic light scattering, Raman spectroscopy, and luminescence spectroscopy, confirming their high quality. The photocatalytic

Effect of repeating hydrothermal growth processes and rapid thermal annealing on CuO thin film properties

• Monika Ozga,
• Eunika Zielony,
• Aleksandra Wierzbicka,
• Anna Wolska,
• Marcin Klepka,
• Marek Godlewski,
• Bogdan J. Kowalski and
• Bartłomiej S. Witkowski

Beilstein J. Nanotechnol. 2024, 15, 743–754, doi:10.3762/bjnano.15.62

• acknowledge Adrian Gruszecki for his help in the Raman spectroscopy measurements. The results discussed in this paper were partially presented in M. Ozga’s doctoral thesis “Copper(II) oxide films obtained by hydrothermal method – growth technology, characterization and potential applications in electronics

Simultaneous electrochemical determination of uric acid and hypoxanthine at a TiO₂/graphene quantum dot-modified electrode

• Vu Ngoc Hoang,
• Dang Thi Ngoc Hoa,
• Nguyen Quang Man,
• Le Vu Truong Son,
• Le Van Thanh Son,
• Vo Thang Nguyen,
• Le Thi Hong Phong,
• Ly Hoang Diem,
• Kieu Chan Ly,
• Ho Sy Thang and
• Dinh Quang Khieu

Beilstein J. Nanotechnol. 2024, 15, 719–732, doi:10.3762/bjnano.15.60

• µL of 500 µM URI and 20 µL of 500 µM HYT before dilution to 10 mL. Results and Discussion Characterization of materials The mixtures of GQDs and TiO2/GQDs suspensions were exposed to visible and UV light to confirm their fluorescence behavior. Under visible light, the aqueous suspension of GQDs is

Elastic modulus of β-Ga₂O₃ nanowires measured by resonance and three-point bending techniques

• Annamarija Trausa,
• Sven Oras,
• Sergei Vlassov,
• Mikk Antsov,
• Tauno Tiirats,
• Andreas Kyritsakis,
• Boris Polyakov and
• Edgars Butanovs

Beilstein J. Nanotechnol. 2024, 15, 704–712, doi:10.3762/bjnano.15.58

• research was supported by the Latvian Council of Science project lzp-2022/1-0311. S.O, S.V, T.T., and A.K acknowledge the European Union’s Horizon 2020 program, under Grant Agreement No. 856705 (ERA Chair “MATTER”). Characterization facilities at the University of Tartu were supported by the Center of

Enhancing higher-order modal response in multifrequency atomic force microscopy with a coupled cantilever system

• Wendong Sun,
• Jianqiang Qian,
• Yingzi Li,
• Yanan Chen,
• Zhipeng Dou,
• Rui Lin,
• Peng Cheng,
• Xiaodong Gao,
• Quan Yuan and
• Yifan Hu

Beilstein J. Nanotechnol. 2024, 15, 694–703, doi:10.3762/bjnano.15.57

• ; Introduction Multifrequency atomic force microscopy (AFM) has become an important tool for nanoscale imaging and characterization [1][2]. This technique involves the excitation and detection of multiple frequencies to improve data acquisition speed, sensitivity, and resolution, as well as to enable material

Gold nanomakura: nanoarchitectonics and their photothermal response in association with carrageenan hydrogels

• Nabojit Das,
• Vikas,
• Akash Kumar,
• Sanjeev Soni and
• Raja Gopal Rayavarapu

Beilstein J. Nanotechnol. 2024, 15, 678–693, doi:10.3762/bjnano.15.56

• . Also, the photothermal responses of the nanoparticles in association with k-CG hydrogels were assessed, indicating their potential in biomedical applications. Furthermore, characterization such as zeta potential, crystallinity, and surface functionalization were investigated through ZetaSizer, X-ray

• 3 h at 60 °C. The dried beads were used for the subsequent experiments and characterization techniques. Characterization techniques The absorption spectra of the synthesized gold nanoparticles capped with CTAB, MTAB, and DTAB were measured using an Epoch2 (BioTek, USA) spectrophotometer. An amount

Exfoliation of titanium nitride using a non-thermal plasma process

• Priscila Jussiane Zambiazi,
• Dolores Ribeiro Ricci Lazar,
• Larissa Otubo,
• Rodrigo Fernando Brambilla de Souza,
• Almir Oliveira Neto and
• Cecilia Chaves Guedes-Silva

Beilstein J. Nanotechnol. 2024, 15, 631–637, doi:10.3762/bjnano.15.53

• and Konstantin Novoselov in 2004 [1], the field of nanostructures has witnessed remarkable advancements. Various methods to fabricate graphene, such as mechanical and chemical exfoliation, combined with innovative characterization techniques, have enabled the preparation of diverse layered two

AFM-IR investigation of thin PECVD SiO_x films on a polypropylene substrate in the surface-sensitive mode

• Hendrik Müller,
• Hartmut Stadler,
• Teresa de los Arcos,
• Adrian Keller and
• Guido Grundmeier

Beilstein J. Nanotechnol. 2024, 15, 603–611, doi:10.3762/bjnano.15.51

• the AFM-IR surface-sensitive mode for the investigation of ultra-thin films and the interfaces to the supporting materials. Conclusion The benefits of the surface-sensitive mode in the AFM-IR characterization of thin PECVD SiOx films on polymer substrates were investigated in this study. Our results

Stiffness calibration of qPlus sensors at low temperature through thermal noise measurements

• Laurent Nony,
• Sylvain Clair,
• Daniel Uehli,
• Aitziber Herrero,
• Jean-Marc Themlin,
• Andrea Campos,
• Franck Para,
• Alessandro Pioda and
• Christian Loppacher

Beilstein J. Nanotechnol. 2024, 15, 580–602, doi:10.3762/bjnano.15.50

• -vacuum (UHV) system and at, or close to, liquid helium temperature (4–10 K, LT UHV), the method allows for the direct characterization of individual molecules with intramolecular contrast [4], opening up the field of studying on-surface reactions [5] or tip-induced chemistry [6]. The method also makes it

Radiofrequency enhances drug release from responsive nanoflowers for hepatocellular carcinoma therapy

• Yanyan Wen,
• Ningning Song,
• Yueyou Peng,
• Weiwei Wu,
• Qixiong Lin,
• Minjie Cui,
• Rongrong Li,
• Qiufeng Yu,
• Sixue Wu,
• Yongkang Liang,
• Wei Tian and
• Yanfeng Meng

Beilstein J. Nanotechnol. 2024, 15, 569–579, doi:10.3762/bjnano.15.49

• when combined with RF hyperthermia. Using these CUR-Fe@MnO2 NFs combined with RF, hyperthermia is a candidate method for the targeted treatment of HCC via combined chemotherapy/hyperthermia. Results and Discussion Characterization The Fe3O4 NCs were prepared by a microwave hydrothermal synthesis method

• CUR-Fe@MnO2 NFs were collected by magnetic separation and washed 3 times with deionized water. Characterization of the synthesized nanomaterials The morphology and size of Fe3O4 NCs, CUR-Fe NPs, and CUR-Fe@MnO2 NFs were determined via transmission electron microscopy (Tecnai F20, FEI, USA). The TEM

• to CC BY 4.0. Characterization of the nanomaterials. a–c) TEM images of the Fe3O4 NCs, CUR-Fe NPs, and CUR-Fe@MnO2 NFs (scale bar: 200 nm). d,e) Zeta potentials and hydrodynamic diameters of the Fe3O4 NCs, CUR-Fe NPs, and CUR-Fe@MnO2 NFs (the polydispersity index values were 0.184, 0.260, 0.269

Cholesterol nanoarchaeosomes for alendronate targeted delivery as an anti-endothelial dysfunction agent

• Horacio Emanuel Jerez,
• Yamila Roxana Simioni,
• Kajal Ghosal,
• Maria Jose Morilla and
• Eder Lilia Romero

Beilstein J. Nanotechnol. 2024, 15, 517–534, doi:10.3762/bjnano.15.46

• increasingly pursued “quality by design” criteria [24]. The development of structurally simple formulations that facilitate their scaling and further characterization is, therefore, a critical task [25]. Also, targeting nanomedicines to circulating cells and vascular walls is difficult since it should occur

• simplicity and resistance to mechanical stress. Recently, we have reported the structural characterization and effect on J774A.1 murine macrophages of ALN loaded in nanoarchaeosomes, that is, nanoARC(ALN) and nanoARC-Chol(ALN). Remarkably, these formulations do not seek to modify the solubility of ALN, but

• IL-6 and IL-8 by HUVECs even in the presence of TNF-α. Results Characterization of ALN-loaded nanovesicles The structural features of ALN-loaded nanovesicles are shown in Table 1. As reported previously, nanoarchaeosome bilayers contain archaeolipids displaying methyl groups perpendicular to their

Electron-induced deposition using Fe(CO)₄MA and Fe(CO)₅ – effect of MA ligand and process conditions

• Hannah Boeckers,
• Atul Chaudhary,
• Petra Martinović,
• Amy V. Walker,
• Lisa McElwee-White and
• Petra Swiderek

Beilstein J. Nanotechnol. 2024, 15, 500–516, doi:10.3762/bjnano.15.45

Aero-ZnS prepared by physical vapor transport on three-dimensional networks of sacrificial ZnO microtetrapods

• Veaceslav Ursaki,
• Tudor Braniste,
• Victor Zalamai,
• Emil Rusu,
• Vladimir Ciobanu,
• Vadim Morari,
• Daniel Podgornii,
• Pier Carlo Ricci,
• Rainer Adelung and
• Ion Tiginyanu

Beilstein J. Nanotechnol. 2024, 15, 490–499, doi:10.3762/bjnano.15.44

• ]. Nevertheless, both PL characterization and phonon mode analysis are indicative of a mixed-phase zinc blende/wurtzite composition of the prepared aero-ZnS material in concordance with the XRD analysis. Apart from these major emission bands, a series of weaker features are observed in the range from 3.36 to 3.23

Fabrication of nanocrystal forms of ᴅ-cycloserine and their application for transdermal and enteric drug delivery systems

• Hsuan-Ang Tsai,
• Tsai-Miao Shih,
• Theodore Tsai,
• Jhe-Wei Hu,
• Yi-An Lai,
• Jui-Fu Hsiao and
• Guochuan Emil Tsai

Beilstein J. Nanotechnol. 2024, 15, 465–474, doi:10.3762/bjnano.15.42

• ., Ltd.) for 10 min. The collection was vacuum-dried to obtain DCS nanocrystals. Characterization of DCS nanocrystals The DCS nanocrystals were analyzed via scanning electronic microscopy (SEM, JEOL Ltd.) and X-ray powder diffraction (XRPD, Bruker AXS GmbH). For SEM, commercial DCS was spreaded onto a

• release study and in the PK study for enteric capsules was performed in triplicates for statistical analysis. The data were presented as mean ± standard deviation (SD) in the tables. The p-value was calculated through Student’s t-test to determine the statistical significance. Results Characterization of

Heat-induced morphological changes in silver nanowires deposited on a patterned silicon substrate

• Elyad Damerchi,
• Sven Oras,
• Edgars Butanovs,
• Allar Liivlaid,
• Mikk Antsov,
• Boris Polyakov,
• Annamarija Trausa,
• Veronika Zadin,
• Andreas Kyritsakis,
• Loïc Vidal,
• Karine Mougin,
• Siim Pikker and
• Sergei Vlassov

Beilstein J. Nanotechnol. 2024, 15, 435–446, doi:10.3762/bjnano.15.39

• , and characterization of such materials [9][10]. Silver NWs are among the most extensively studied materials for NW-based transparent electrodes. High-quality Ag NWs can be synthesized relatively easily in large quantities, with precise control over their length and diameter [11][12]. Compared to

• NWs simultaneously crossed several holes. Such configuration is highly beneficial as it enables to study the effect of the substrate on the same NW by comparing the behavior of suspended as opposed to adhered parts (Figure 1). Heat treatment and characterization Heat-treatment experiments were carried

• -2017-TeamingPhase2 under grant agreement No. 739508, project CAMART2. Characterization facilities at the University of Tartu were supported by the Center of nanomaterials technologies and research (NAMUR+) for core facility funded by project TT13. S.P. was supported by the Estonian Research Council’s

Potential of a deep eutectic solvent in silver nanoparticle fabrication for antibiotic residue detection

• Le Hong Tho,
• Bui Xuan Khuyen,
• Ngoc Xuan Dat Mai and
• Nhu Hoa Thi Tran

Beilstein J. Nanotechnol. 2024, 15, 426–434, doi:10.3762/bjnano.15.38

• characterization and apparatus The absorbance properties of the sample were recorded using a V-730 UV–vis–NIR spectrophotometer supplied by JASCO, Japan. The crystallinity of the Ag NPs-DES thin film was determined using a D8 Advance diffractometer, Bruker, UK, with a Ni-filtered Cu Kα X-ray source. To evaluate

Insect attachment on waxy plant surfaces: the effect of pad contamination by different waxes

• Elena V. Gorb and
• Stanislav N. Gorb

Beilstein J. Nanotechnol. 2024, 15, 385–395, doi:10.3762/bjnano.15.35

• microscope (Hitachi High-Technologies Corporation, Tokyo, Japan) at an acceleration voltage of 2–20 kV (plants) or 20 kV (insects). In the characterization of the waxy plant surfaces, we used the classification of plant epicuticular waxes according to [45]. Force measurements Force experiments were carried

Investigating ripple pattern formation and damage profiles in Si and Ge induced by 100 keV Ar⁺ ion beam: a comparative study

• Indra Sulania,
• Harpreet Sondhi,
• Tanuj Kumar,
• Sunil Ojha,
• G R Umapathy,
• Ambuj Mishra,
• Ambuj Tripathi,
• Richa Krishna,
• Devesh Kumar Avasthi and
• Yogendra Kumar Mishra

Beilstein J. Nanotechnol. 2024, 15, 367–375, doi:10.3762/bjnano.15.33

• The RBS-c is an effective characterization technique for the estimation of amorphous depth and defect concentration in implanted single crystals. The RBS-c analysis for point defects shows a linear behaviour in defect density with ion fluence. The formation of highly dense dislocation loops beyond the

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

• characterization, the thickness of the bottom NiCu layers is estimated to be around 22 nm and is reduced to below 10 nm towards the upper end of the nanowire. Only NiCu is deposited in the pores near the surface of the AAO template forming a long segment of NiCu on the very top of the nanowires. This varying

Nanomedicines against Chagas disease: a critical review

• Maria Jose Morilla,
• Kajal Ghosal and
• Eder Lilia Romero

Beilstein J. Nanotechnol. 2024, 15, 333–349, doi:10.3762/bjnano.15.30

• the reasons can be summarized as follows: Difficult scale-up, structural characterization, and conservation: The structure of nanomedicines is much more complex than that of drugs with low molecular weight. Because of that, nanomedicines are considered as non-biological complex drugs (NBCDs). NBCDs

Determining by Raman spectroscopy the average thickness and N-layer-specific surface coverages of MoS₂ thin films with domains much smaller than the laser spot size

• Felipe Wasem Klein,
• Jean-Roch Huntzinger,
• Vincent Astié,
• Damien Voiry,
• Romain Parret,
• Houssine Makhlouf,
• Sandrine Juillaguet,
• Jean-Manuel Decams,
• Sylvie Contreras,
• Périne Landois,
• Ahmed-Azmi Zahab,
• Jean-Louis Sauvajol and
• Matthieu Paillet

Beilstein J. Nanotechnol. 2024, 15, 279–296, doi:10.3762/bjnano.15.26

• of MoS2 flakes produced by different methods. Among these techniques, Raman spectroscopy is widely used thanks to its convenience, non-destructiveness, and sensitivity to materials change, including strain, temperature, doping, and defects [26]. Concerning the characterization of MoS2 flakes

• generally, this point is critical for the characterization of samples synthesized using new methods or new precursors that can lead to the co-deposition of several by-products (such as carbon, oxides, and metals), which can significantly change the measured Raman intensities. Based on the results presented

Ultrasensitive and ultrastretchable metal crack strain sensor based on helical polydimethylsiloxane

• Shangbi Chen,
• Dewen Liu,
• Weiwei Chen,
• Huajiang Chen,
• Jiawei Li and
• Jinfang Wang

Beilstein J. Nanotechnol. 2024, 15, 270–278, doi:10.3762/bjnano.15.25

• with PDMS. Parts of the experimental procedure are shown in Figure S6 (Supporting Information File 1). Characterization The surface morphology of the samples prepared in this study was examined through the utilization of scanning electron microscopy (SEM) (TESCAN MIRA3, Czech Republic) and an optical

Vinorelbine-loaded multifunctional magnetic nanoparticles as anticancer drug delivery systems: synthesis, characterization, and in vitro release study

• Zeynep Özcan and
• Afife Binnaz Hazar Yoruç

Beilstein J. Nanotechnol. 2024, 15, 256–269, doi:10.3762/bjnano.15.24

• , 2:1, and 4:1) and the cumulative drug release were determined by calculating according to Equations 2–4 utilizing the absorbance values obtained from UV–vis spectrophotometer and calibration curves. Characterization The morphology of the synthesized nanoparticles was determined with a high

• Institute of Health, Bethesda, MD, USA). OriginPro 8.5 (OriginLab, MA, USA) was used for statistical analysis. A p-value less than 0.05 (p < 0.05, n = 4) was considered statistically significant. Results and Discussion Characterization of Fe3O4 nanoparticles The synthesis of Fe3O4 NPs was carried out using

• obtained for saturation magnetization (Ms), coercivity (Hc), and residual magnetization (Mr) were determined as 67.72 emu/g, 63.37 Oe, and 4.39 emu/g, respectively. Characterization of polydopamine coating, PEGylation, and drug loading modifications of Fe3O4 nanoparticles The Fe3O4 NPs were synthesized