Synthesis of silver–palladium Janus nanoparticles using co-sputtering of independent sources: experimental and theorical study

• Maria J. Martínez-Carreón,
• Francisco Solís-Pomar,
• Abel Fundora,
• Claudio D. Gutiérrez-Lazos,
• Sergio Mejía-Rosales,
• Hector N. Fernández-Escamilla,
• Jonathan Guerrero-Sánchez,
• Manuel F. Meléndrez and
• Eduardo Pérez-Tijerina

Beilstein J. Nanotechnol. 2024, 15, 808–816, doi:10.3762/bjnano.15.67

• nanoparticles, which are basically defined by two metals joined side by side, may produce significant interfacial effects [10]. Qiu et al. [11] investigated the role of the injection rate of the chemical precursors on the elemental distribution in AuPd nanoparticles. They found the injection rate needed to

• tetrahedra rich in Au [11]. This work reports the production (for the first time, to our knowledge) of Ag/Pd Janus BNPs, using the inert gas condensation (IGC) technique, where the materials are obtained from independent palladium and silver targets. In order to achieve this, the original IGC setup, as

Electron-induced ligand loss from iron tetracarbonyl methyl acrylate

• Hlib Lyshchuk,
• Atul Chaudhary,
• Thomas F. M. Luxford,
• Miloš Ranković,
• Jaroslav Kočišek,
• Juraj Fedor,
• Lisa McElwee-White and
• Pamir Nag

Beilstein J. Nanotechnol. 2024, 15, 797–807, doi:10.3762/bjnano.15.66

• the gas phase has been probed with respect to its dissociative ionization [10] and dissociative electron attachment [11][12]; there is even information available on its electronic excitation, which is the first step towards neutral dissociation [11]. The gas-phase studies have been complemented by

• iron pentacarbonyl, the π* resonance system is centered around 1.4 eV [11]). There are additional DEA bands at energies of 3.5, 5.5, and 8.5 eV visible in the other DEA fragments. We ascribe these to core-excited resonances where the electron is temporarily trapped by the excited molecule. The UV–vis

• structures are below the onset of the experimental signal. Again, a comparison with DEA of gas-phase iron pentacarbonyl [11] might be instructive. There, the only exothermic channel is the dissociation of one carbonyl ligand, leading to a high Fe(CO)4− yield at low electron energies. In the present case, the

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

• created and used in numerous biomedical applications, such as tissue engineering, wound dressing, and drug delivery [11][12]. Electrospinning has many advantages: it is a simple technique, cost-effective, reproducible, scalable, and reliable. In addition, various polymers can be used as starting material

• ± 11%) were significantly different from that of the 72 h negative control. As can be seen on the phase-contrast microscopy images, the cell number was higher in the case of the treatment with the extract from the PSI + salt scaffolds than that in the case of treatment with media containing only salts

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

• ], sensors [2], and biomedical applications [3][4], among other areas [5][6][7][8]. Graphene-related materials [8], transition metal dichalcogenides [9], boron nitride [10], and MXenes [11], among many others, exhibit novel and exotic properties, which markedly differ from their bulk counterparts [12]. This

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

• are often ineffective against resistant dyes, necessitating more advanced and sustainable technologies [3][4][5][6][7]. Embracing more sustainable practices and developing eco-friendly technologies are key to achieving a balance between textile production and environmental preservation [8][9][10][11

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

• utility in photodetectors [10][11], memory structures [12][13], and p-type channels in transistors [14][15]. Simultaneously, ongoing efforts are consistently directed towards developing deposition techniques and functionalization of CuO films in order to modify their properties for specific applications

• -grown films, only three reflections located at 2θ ≈ 35.57° (002)/(11−1) and 2θ ≈ 38.66° (111) were observed. In contrast, the diffractograms of the sequenced films (1×, 2×, and 3×) contain an additional peak at 2θ ≈ 32.5° (110), whose intensity increases with each HT+RTA cycle. The appearance of an

Level set simulation of focused ion beam sputtering of a multilayer substrate

• Alexander V. Rumyantsev,
• Nikolai I. Borgardt,
• Roman L. Volkov and
• Yuri A. Chaplygin

Beilstein J. Nanotechnol. 2024, 15, 733–742, doi:10.3762/bjnano.15.61

• multilayer films [8], the patterning of 2D materials [9], or the direct introduction of dopants into a solid-state host through recoil implantation [10]. Examples that rely on ion milling include patterning of magnetic multilayers [11], fabrication of optical metamaterials [12], and modification of

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

• properties. Graphene quantum dots (GQDs) are zero-dimensional graphene derivatives consisting of one to few layers of graphene sheets with a size of less than 20 nm in width [11]. The missing bandgap results in an absence of luminescence in pristine graphene. However, a bandgap can be generated in GQDs

Reduced subthreshold swing in a vertical tunnel FET using a low-work-function live metal strip and a low-k material at the drain

• Kalai Selvi Kanagarajan and
• Dhanalakshmi Krishnan Sadhasivan

Beilstein J. Nanotechnol. 2024, 15, 713–718, doi:10.3762/bjnano.15.59

• silicon, a low leakage current, and a lattice parameter that is close to that of silicon with a modest lattice misfit (ca. 5%) [11]. In this paper, a published VTFET structure is taken for comparison [12]. A large tunnel area and a thin channel enhance the device metrics [13]. In contrast to the

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

• suitable for use on bendable and stretchable substrates in line with the current trends in electronic technologies focusing on flexible electronic device development [11][12]. Consequently, understanding the mechanical properties of β-Ga2O3 NWs becomes an important step. For instance, precise determination

• (11−2) and (−112) planes were identified with 2.2 Å interlayer spacing, indicating [021] growth direction. The presence of NWs with various crystalline orientations suggests either the absence of one dominant preferential growth direction due to the low-symmetry monoclinic phase or other growth

• ) X-ray diffraction pattern of β-Ga2O3 NWs on silicon substrate. b) TEM image of a β-Ga2O3 NW with interlayer spacing of 5.7 Å, indicating [001] growth direction. c) TEM image of a β-Ga2O3 NW with orthogonal (11−2) and (−112) planes and interlayer spacing 2.2 Å, indicating [021] growth direction. a

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

• [7][8][9]. The higher-order eigenmodes of the cantilever can effectively improve Q-factor, imaging rate, and mass sensing resolution [10][11]. For traditional rectangular cantilevers, the higher-order modal response is usually weaker than that of the fundamental mode in ambient air [12]. This

• mode generated at l = 3 cm in this sweeping experiment, with a frequency of 10144.0 Hz, lower than the second-mode frequency. The frequency response curves obtained in the experiment for different left-side lengths l are shown in Figure 11. The results show that the second modal frequency response

• enhances as l increases. When l is 2.75 cm, the coupled system has the best coupling and the highest modal response. Moreover, as shown in Figure 11, the response amplitude of the additional resonance peak (labeled on the purple curve) of 6.165 × 10−4 μm is larger than the amplitude of the second modal

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

• anisotropic gold nanoparticles (AuNPs) have been synthesized and studied in recent years including nanorings, nanoprisms, nanoplates, crooked nanorods, dendrimers, nanocubes, nanodumbells, dogbones, and nanomakura [7][8][9][10][11][12][13][14]. Vis-à-vis to spherical nanoparticles, anisotropic nanoparticles

• measured for 300 s upon irradiation. From Figure 8d and Figure 11, it was observed that the net temperature rise of the nanomakuras (CTAB-AuNM, MTAB-AuNM, and DTAB-AuNM) after incorporation into hydrogel beads could be attained up to ≈17.2, ≈17.2, and ≈15.7 °C, respectively, upon irradiation. The net

• further corroborated by the effect of carbon tail length, which dictated linear dimension, profoundly impacting their photothermal conversion ability. Furthermore, when in k-CG hydrogel as shown in Figure 11, the photothermal conversion ability through temperature rise of AuNMs corroborated the results

Functional fibrillar interfaces: Biological hair as inspiration across scales

• Guillermo J. Amador,
• Brett Klaassen van Oorschot,
• Caiying Liao,
• Jianing Wu and
• Da Wei

Beilstein J. Nanotechnol. 2024, 15, 664–677, doi:10.3762/bjnano.15.55

• gravity is less of a concern, adhesive hairs are no less useful than for insects and larger animals. Microalgae, such as Chlamydomonas reinhardtii (10 µm in size), possess ≈100 nm long thin hairs on their flagella [11], which help them to attach to surfaces to glide or to attach with other cells to mate

• different colors referring to mammals (blue) [5], birds (red) [9][10], insects (green) [5], and cells and phages (yellow) [11][12][13][14][15][16][17][18][19][20][21][22][23]. The dashed black line represents the best power-law fit for all of the data: with R2 = 0.98 and 95% confidence interval (CI): (1.07

Laser synthesis of nanoparticles in organic solvents – products, reactions, and perspectives

• Theo Fromme,
• Sven Reichenberger,
• Katharine M. Tibbetts and
• Stephan Barcikowski

Beilstein J. Nanotechnol. 2024, 15, 638–663, doi:10.3762/bjnano.15.54

• fundamentals and applications [7]. The colloids reported in the literature contain mainly inorganic particles (hence, they are the focus of this review), although the literature on organic particle synthesis has been reported as well, ranging from dyes [8][9] to natural substances [10][11] and drugs [12]. LSPC

• formation mechanism of the carbon shells schematically shown in Figure 11: (i) Choi et al. proposed a decomposition of the solvent during the plasma phase and a subsequent (partial) solution of carbon in the ablated metal depending on the solubility of carbon in the molten metals (Figure 11a). This would

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

• conductivity [10][11][12]. On the nanoscale, TiN finds applications as additive in titanium alloys, as catalyst support material, as supercapacitor component, and as nanocoating for medical implants [13][14][15][16]. Furthermore, ultra-small TiN nanodots have been successfully obtained through liquid

Comparative analysis of the ultrastructure and adhesive secretion pathways of different smooth attachment pads of the stick insect Medauroidea extradentata (Phasmatodea)

• Julian Thomas,
• Stanislav N. Gorb and
• Thies H. Büscher

Beilstein J. Nanotechnol. 2024, 15, 612–630, doi:10.3762/bjnano.15.52

• adhesive principles convergently emerged in insects multiple times: hairy and smooth adhesive organs [5][6][7]. Both principles are used for multiple functions from locomotion [8][9] to attachment during copulation [10] and predator resistance [11]. To fulfil their functions, smooth attachment pads need to

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

• films on polypropylene substrates. Polypropylene is widely used as packaging material [11] and in other industrial applications [12][13][14]; however, it is commonly known for its poor gas barrier properties [11][13]. Therefore, silicon oxide coatings are used to improve the gas barrier properties [13

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

• = − f1 < 0 is tracked by the PLL and used as the input of the Z-controller to form a “topographic image”, which is actually a “constant-Δf” image. Alternatively, the image can also be acquired at constant height, which then forms a local Δf map of the surface. Δf is expressed according to [11][12]: where

• of the Euler–Bernoulli model, the modal stiffness kn of an unloaded probe may be connected to the static one ks (or equivalently ) according to [35][76]: Thus, for the fundamental eigenmode of an unloaded probe (α1 = 1.875), . Combining Equation 8, Equation 9, and Equation 10 yields: Equation 11 is

• its measurement noise (f). Sz(f) may either be measured with a properly calibrated spectrum analyzer or derived from the Fourier transform of the time trace of the thermal fluctuations (Equation 16) [48]. Depending on the acquisition bandwidth, ks may be estimated from Equation 10 or Equation 11

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

• pursuit of enhanced therapeutic effects and reduced side effects [9]. Among these, curcumin (CUR), a natural plant-derived polyphenolic drug, has garnered considerable attention due to its potential in treating HCC [10][11][12][13]. Curcumin can promote HCC cell apoptosis by activating p38, a cancer

Directed growth of quinacridone chains on the vicinal Ag(35 1 1) surface

• Niklas Humberg,
• Lukas Grönwoldt and
• Moritz Sokolowski

Beilstein J. Nanotechnol. 2024, 15, 556–568, doi:10.3762/bjnano.15.48

• step decoration can be exploited to grow 1D chain-like structures of adsorbates that otherwise tend to form two-dimensional (2D) domains on flat terraces. Examples are atoms forming 1D metallic chains [11][12][13][14][15] and organic molecules forming 1D chains at step edges of vicinal metal surfaces

• at a low coverage, for example, PTCDA on Au(433) and Au(778) [16], a 1:1 mixture of PTCDI and 1,4-bis(2,4-diamino-1,3,5-triazine)benzene on Au(11 11 12) [17], and nickel-tetraphenyl-porphyrin on Au (788) [18]. Here, we report on the growth of an organic molecule, namely 5,12-dihydroquino[2,3-b

• before, for example, PTCDA on Au(433) and Au(778) [16], a 1:1 mixture of PTCDI and 1,4-bis(2,4-diamino-1,3,5-triazine)benzene on Au(11 11 12) [17], α-6T on Ag(441) [39], and nickel tetraphenylporphyrin on Au (788) [18]. Deposition at 400 K Interestingly, after the deposition of QA onto Ag(35 1 1) at an

On the additive artificial intelligence-based discovery of nanoparticle neurodegenerative disease drug delivery systems

• Shan He,
• Julen Segura Abarrategi,
• Harbil Bediaga,
• Sonia Arrasate and
• Humberto González-Díaz

Beilstein J. Nanotechnol. 2024, 15, 535–555, doi:10.3762/bjnano.15.47

• compound towards the target site with a substantial reduction of toxicity for the adjacent tissues, and help the NDDs to pass physiological barriers, increasing bioavailability without resorting to high dosages [5][11]. Therefore, researchers are studying and developing new treatment approaches that use

• ) and n(cn4) = 16 coating agents (UC, PEG-Si(OMe)3, PVA, sodium citrate, 11-mercaptoundecanoic acid, PVP, propylamonium fragment, undecylazide fragment, CTAB, N,N,N-trimethyl-3(1-propene) ammonium fragment, potato starch, N-acetylcysteine, CMC-90, 2,3-dimercaptopropanesulfonate, 3

• . Therefore, we tested more complex non-linear models so as to improve the Sp and Sn values. The IFPTML-MLP 7:7-11-1:1 model, containing seven input variables in the input layer and eleven neurons in the hidden layer, yielded the best statistical parameters of Sn and Sp values (Table 3). The IFPTML-DLN model

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

• arterial calcification at doses comparable to those that inhibit bone resorption [10] and reported to exhibit a proangiogenic action on stressed endothelial cells, enhancing vascular endothelial growth factor (VEGF) synthesis and inducing the formation of capillary-like tubes in a VEGF-dependent manner [11

• 70% by both formulations, while the level of IL-8 remained unchanged. Dexamethasone reduced ≈70% and ≈40% of the IL-6 and TNF-α levels, respectively (Figure 11). Apical nanoARC-Chol(ALN), dexamethasone, and ALN decreased ROSs in human FCs (Figure 10B). Void formulations did not exhibit anti

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

• precursor dicobalt octacarbonyl (Co2(CO)8) [4][6][7][8]. More recently, compounds containing more than one metallic element were developed as precursors for FEBID of bimetallic deposits [4][7][8][9][10][11][12][13]. Among those, HFeCo3(CO)12 has proven to yield deposits with high metal content and

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

• with ultrahigh degree of porosity, the so-called aeromaterials, are of special interest [11][12][13][14][15][16][17][18]. Aeromaterials are similar to aerogels, which are widely explored and used in various applications. Aerogels include inorganic [19][20][21][22][23][24], organic [21][22][23][24][25

• for the preparation of the abovementioned semiconductor-based aeromaterials. Most of these aeromaterials have been produced by hydride vapor phase epitaxy (HVPE) [11][12][13][14][15][16][17][18]. Particularly, an aero-ZnS material exhibiting hydrophilic properties under tension and hydrophobic

• aero-semiconductor materials [11][12][13][14][15][16][17][18], including aero-ZnS materials [16]. The HVPE installation consists of two chambers. In the first chamber, ZnS/ZnO core–shell structures are grown through transporting vapors from the CdS powder source to the ZnO substrate by a H2 flow. The

Photocatalytic degradation of methylene blue under visible light by cobalt ferrite nanoparticles/graphene quantum dots

• Vo Chau Ngoc Anh,
• Le Thi Thanh Nhi,
• Le Thi Kim Dung,
• Dang Thi Ngoc Hoa,
• Nguyen Truong Son,
• Nguyen Thi Thao Uyen,
• Nguyen Ngoc Uyen Thu,
• Le Van Thanh Son,
• Le Trung Hieu,
• Tran Ngoc Tuyen and
• Dinh Quang Khieu

Beilstein J. Nanotechnol. 2024, 15, 475–489, doi:10.3762/bjnano.15.43

• acid in a controlled manner, and CF; the material was used to reduce 4-nitrophenol with a very high rate constant compared to the individual components [11]. Despite various advancements in preparation techniques for nanocatalysts, the development of a well-controlled method remains a challenge. In

• CoFe2O4/GQDs composite material was placed in flasks sealed with aluminium foil and containing 20 mL of 10 ppm MB solution at pH 3–11, adjusted with 0.01 M HCl or 0.01 M NaOH. After 60 min of adsorption and photodegradation, the tubes were placed in a photocatalytic cabinet for illumination for 120 min

• that the resulting composite can enhance the absorption capacity [11]. This observation is an agreement with previous works [11]. In addition, a slight shift of the PL emission peak is also observed because of the blue shift in the UV–vis spectrum, which is consistent with their bigger bandgap energy