Interface properties of nanostructured carbon-coated biological implants: an overview

• Mattia Bartoli,
• Francesca Cardano,
• Erik Piatti,
• Stefania Lettieri,
• Andrea Fin and
• Alberto Tagliaferro

Beilstein J. Nanotechnol. 2024, 15, 1041–1053, doi:10.3762/bjnano.15.85

• another (inter-layer transport) and is the source of the large anisotropy typically displayed between in-plane and out-of-plane carrier mobilities [42]. Carrier injection is usually determined by energy band alignment and interface transparency, and it is limited by the number of available conduction

• can reach 550 W·m−1·K−1 after sintering at high pressure [73]. Nevertheless, surface defects and the granular shape of the NDs represent boundaries for phonon transport reducing the thermal energy propagation [74]. Furthermore, the thermal conductivity of NDs increases with the increment of

• which the deposition occurs. During electron beam evaporation, an electron beam is used to vaporize the target material, while during sputtering, a high-energy ion beam is used to bombard the target. In both cases, atoms are ejected from the target and subsequently condense onto the substrate. The

Entry of nanoparticles into cells and tissues: status and challenges

• Kirsten Sandvig,
• Tore Geir Iversen and
• Tore Skotland

Beilstein J. Nanotechnol. 2024, 15, 1017–1029, doi:10.3762/bjnano.15.83

• , it was recently published that globular particles with regularly spaced green fluorescent protein (GFP) and a diameter of 40 nm could induce membrane curvature and be internalized when binding to glycosylphosphatidyl-anchored GFP nanobodies [19]. Vesicle formation was energy dependent and dynamin

Ca_n neutral clusters: a two-step G₀W₀ and DFT benchmark

• Sunila Bakhsh,
• Sameen Aslam,
• Muhammad Khalid,
• Muhammad Sohail,
• Sundas Zafar,
• Sumayya Abdul Wadood,
• Kareem Morsy and
• Muhammad Aamir Iqbal

Beilstein J. Nanotechnol. 2024, 15, 1010–1016, doi:10.3762/bjnano.15.82

• geometries, electron affinities, and ionization potentials reported in the benchmark. The ground-state structure geometry and binding energy were obtained from the DFT for the ground-state structure of each cluster. The binding energy of the neutral clusters of the calcium series follows an increasing trend

• employed particle swarm optimization (PSO) with CALYPSO code [20] interfaced with ABACUS code [21] to predict the neutral cluster of calcium (2–20) and local geometry optimization, respectively. The acquired structures were analyzed to determine among the low-energy isomers after running the calculation

• ONCV-type multi-projector pseudopotentials for the description of the core ions, which is used in our calculation as provided by the SG15 library [23]. We have therefore set the energy cutoff as 100 Ry for better accuracy. The double-ζ plus polarization (DZP) basis set was used in ABACUS calculations

Atomistic insights into the morphological dynamics of gold and platinum nanoparticles: MD simulations in vacuum and aqueous media

• Evangelos Voyiatzis,
• Eugenia Valsami-Jones and
• Antreas Afantitis

Beilstein J. Nanotechnol. 2024, 15, 995–1009, doi:10.3762/bjnano.15.81

• , from medicine and engineering to the environment and energy. Because of their small size, nanoparticles (NPs) have only been discovered relatively recently, although they have been present in the environment throughout earth’s and human history, emerging from various sources including biological

• molecular dynamics [44]. The strong decrease of the melting point of small Au NPs compared to bulk Au was quantified by Qiao et al. [45]. Nayebi and Zaminpayma [46] as well as Shim et al. [47] studied the crystallization of liquid Au NPs. The dependence of the surface energy of gold NPs on their size and

• their energy interactions. The morphological changes in the NPs are measured using both atomic parameters, such as the coordination number and the Berry parameter, and cluster parameters, such as the X-ray powder diffraction pattern and the asphericity parameter. Furthermore, we extract qualitative

Beyond biomimicry – next generation applications of bioinspired adhesives from microfluidics to composites

• Dan Sameoto

Beilstein J. Nanotechnol. 2024, 15, 965–976, doi:10.3762/bjnano.15.79

• form. Nature offers many examples of self-healing damage over time, yet human-engineered products have rarely achieved this capability in a cost-effective manner [37]. Materials that can absorb energy and deform without being permanently damaged would be highly attractive from a sustainability

• state for long durations and only need to be reformed occasionally. Energy damping: Depending on the structural layers for the biomimetic adhesives, there could be significant internal energy damping for energy absorption, that is, highly viscoelastic fibers and energy dissipation as heat during

Therapeutic effect of F127-folate@PLGA/CHL/IR780 nanoparticles on folate receptor-expressing cancer cells

• Thi Ngoc Han Pham,
• Phuong-Thao Dang-Luong,
• Hong-Phuc Nguyen,
• Loc Le-Tuan,
• Xuan Thang Cao,
• Thanh-Danh Nguyen,
• Vy Tran Anh and
• Hieu Vu_Quang

Beilstein J. Nanotechnol. 2024, 15, 954–964, doi:10.3762/bjnano.15.78

• ]. Therefore, it is essential to prevent CHL hydrolysis by incorporating it into nanoparticles, boosting its stability. IR780 iodide is a lipophilic heptamethine NIR fluorophore that absorbs light with a peak at 780 nm. It turns NIR (750–1000 nm) laser energy into heat after being exposed to it. It was

Effects of cutting tool geometry on material removal of a gradient nanograined CoCrNi medium entropy alloy

• Yu-Sheng Lu,
• Yu-Xuan Hung,
• Thi-Xuyen Bui and
• Te-Hua Fang

Beilstein J. Nanotechnol. 2024, 15, 925–940, doi:10.3762/bjnano.15.76

• damage is limited to a shallow layer at the surface. Since thermal energy is generated in the high grain boundary density, the temperature of the contact zone between the substrate and the cutting tool increases as the GNG size decreases. The cutting chips removed from the GNG CoCrNi MEA substrates will

• strength and ductility [5]. Zhang et al. fabricated a new transformable FeCoCrNiMn HEA with both face-centered cubic (FCC) and body-centered cubic (BCC) phases to enhance the strength and ductility of the HEA [6]. This has been attributed to the low stacking-fault energy of this type of alloy. The

• the relationship between temperature and energy [33]: where kB, Natoms, and mj are the Boltzmann constant, the number of atoms of particles in each cell, and the mass of the j-th atom, respectively. The temperature of atoms is indicated by the atom color, with red indicating the highest temperature

Water-assisted purification during electron beam-induced deposition of platinum and gold

• Cristiano Glessi,
• Fabian A. Polman and
• Cornelis W. Hagen

Beilstein J. Nanotechnol. 2024, 15, 884–896, doi:10.3762/bjnano.15.73

• the deposition are the precursor supply, the primary beam energy and current, and the patterning strategy. The deposits are built through consecutive electron beam spot exposures of the precursor molecules adsorbed on the substrate. The shape of the deposit is defined as an area containing an array of

• patterning parameters are the patterned area size, dwell time, primary beam energy and current, pitch, number of passes, and SEM chamber pressure during deposition or chamber pressure increase during deposition. The complete parameters for the deposits presented in this work are presented in Supporting

• Information File 1. For all experiments, the primary beam energy was kept between 5 and 18 kV, and the pitch was kept at 4 nm. The chamber background pressure was always circa 1·10−6 mbar, unless otherwise specified. In the case of series with a variation of one of the parameters, the specific values are

A review on the structural characterization of nanomaterials for nano-QSAR models

• Salvador Moncho,
• Eva Serrano-Candelas,
• Jesús Vicente de Julián-Ortiz and
• Rafael Gozalbes

Beilstein J. Nanotechnol. 2024, 15, 854–866, doi:10.3762/bjnano.15.71

• size-dependent, they are calculated using smaller, single-size model clusters, which are not related to the size of the nanoparticles; thus, they should be considered size-independent. Cluster-related values include standard heat of formation, total energy, electronic energy, core–core repulsion energy

• , area and volume of the cluster, energies of HOMO and LUMO orbitals and the gap between them, and lattice energies [22][26]. The energy levels of conduction and valence bands, which are found commonly among the most important parameters, can be calculated from QM models or derived from other simple

• descriptors and not as experimentally measured physical descriptors of the investigated nanoform. Examples of this are the atomization energy of the bulk MOx structure obtained from literature sources, used by Liu and coworkers [15], and the formation energies used by Banerjee and coworkers [33]. Nano-QSAR

Investigation on drag reduction on rotating blade surfaces with microtextures

• Qinsong Zhu,
• Chen Zhang,
• Fuhang Yu and
• Yan Xu

Beilstein J. Nanotechnol. 2024, 15, 833–853, doi:10.3762/bjnano.15.70

• results. Second, the placement position and geometrical parameters (height, width, and spacing) of microtextures with lower energy loss were determined by our simulation of microtextures on the blade surface, and the drag reduction mechanism was analyzed. Triangular ribs with a height of 0.2 mm, a width

• of 0.3 mm, and a spacing of 0.2 mm exhibited the best drag reduction, reducing the energy loss coefficient and drag by 1.45% and 1.31% for a single blade, respectively. Finally, the blades with the optimal microtexture parameters were tested in the wind tunnel. The experimental results showed that

• the microtexture decreased energy loss by 3.7% for a single blade under 57° angle of attack and 136.24 m/s, which was favorable regarding the drag reduction performance of the impeller with 45 blades. Keywords: blade; drag-reducing microtexture; geometrical parameters; placement position; simulations

Intermixing of MoS₂ and WS₂ photocatalysts toward methylene blue photodegradation

• Maryam Al Qaydi,
• Nitul S. Rajput,
• Michael Lejeune,
• Abdellatif Bouchalkha,
• Mimoun El Marssi,
• Steevy Cordette,
• Chaouki Kasmi and
• Mustapha Jouiad

Beilstein J. Nanotechnol. 2024, 15, 817–829, doi:10.3762/bjnano.15.68

• , directly threatening human health if present in drinking water or in aquatic organisms [8]. In this context, photocatalysis has emerged as a reliable and environmentally friendly solution for MB photodegradation (PD) as it only consumes renewable energy, prevents the formation of secondary waste, and is a

• cost-effective technology. By harnessing impinging photons, the photocatalytic degradation of pollutants takes place at the interface between the photocatalyst surface and the MB-contaminated electrolyte. The photon energy is the driving force for breaking down the MB compound leading to its removal [9

• with energy-dispersive spectroscopy (EDS) mapping were carried out on the MoS2/WS2 composite. High-annular angle dark-field (HAADF-STEM) allowed the identification of atomic positions with Z differences [35][36], and in particular here, the W sites as shown in Figure 5g. This is confirmed by EDS maps

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

• promote the synthesis of bimetallic Janus nanoparticles. The structural properties of the resulting nanoparticles were investigated by transmission electron microscopy (TEM), and the chemical composition was analyzed by TEM energy dispersive spectroscopy (TEM-EDS), which, together with structural analysis

• gradient approximation (GGA) to compute the exchange–correlation energies using the Perdew–Burke–Ernzerhof parameterization [23]. The projector augmented wave (PAW) pseudopotentials were considered with a cutoff energy of 500 eV [24]. Geometrical optimization of all models was performed without any

• each case. Pd was included in Ag until reaching a 1:1 ratio. The stability of the AgPd alloy models was studied by the formation energy (EForm, used to obtain the relative stability of models with different atomic contents) calculated as: EForm = (Eslab − (nAgμAg) − (nPdμPd))/ntotal, where Eslab is the

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

• presence of a plume of slow electrons in the deposition region. While the primary focused beam typically has an energy of tens of kiloelectronvolts, the distribution of secondary backscattered electrons often peaks at tens of electronvolts [7]. Interaction of precursors with these secondary electrons also

• advanced reactive force field molecular dynamics simulations [20]. Here we focus on two electron-induced dissociative channels of Fe(CO)4MA, namely, dissociative ionization and dissociative electron attachment (DEA). We focus on the electron energy range below 20 eV. Data from two complementary

• = 11.6, 7.8 Hz, 1H), 2.91 (dd, J = 11.6, 2.3 Hz, 1H), 2.62 (dd, J = 7.7, 2.3 Hz, 1H). Electron collision experiments Two different experimental setups were used to perform low-energy electron beam-induced dissociation experiments. They are complementary; one of them, the CLUster Beam setup (CLUB), has a

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

• polymer-based systems (<500 nm). Fourier-transform infrared spectroscopy was applied to verify the presence of salts in the scaffolds and to determine the interaction between the salt and the polymer. Another analysis, energy-dispersive X-ray spectroscopy, was carried out to determine strontium and zinc

• . Scanning electron microscopy and energy-dispersive X-ray spectroscopy Scanning electron microscopy images were taken to determine the fiber diameters of salt-containing polymer scaffolds. They were made at the Budapest University of Technology and Economics, Department of Polymer Technology, applying a

• FTIR analysis, we used an energy-dispersive X-ray spectroscopy (EDX) detector during the SEM measurements to show the presence of salts in the fibers. The EDX spectra were taken at a voltage of 15 kV. Mechanical properties A mechanical testing machine (4952, Instron, USA) and the associated software

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

• differences of the wetting properties [34]. At moderate oscillation amplitudes, intimate tip–sample contact is avoided, and the energy dissipation takes place at the lower turning point of the oscillation cycle because of the formation and rupture of liquid necks [35][36][37]. When operating in this less

• system’s energy and, thus, reduce the amplitude, or (iii) a combination of both. Operating in this mode, erroneous height measurements derived from topography images are then attributed to local variations of hydrophilicity or hydrophobicity, which affect the dissipative capillary forces between tip and

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

• ; photoluminiscence; Introduction The textile industry is known for its high consumption of water, energy, and chemical reagents. For example, manufacturing a pair of indigo-dyed pants requires at least 42 L of water, plus approximately 21 L each time they are washed at home. To ensure product quality, textile dyes

• textile industry is a major contributor to water pollution [1][2]. To address this issue, the textile industry must adopt more sustainable practices in water and energy use, develop environmentally friendly dyes, and implement wastewater treatment processes. Conventional wastewater treatment techniques

• of CQDs range from sensing and cell imaging to drug delivery, photocatalysis, and energy conversion [26][27][28][29]. In this study, biomass from watermelon shell and grape pomace waste is used as the carbon source. The hydrothermal method employing urea, nitric acid, and water is utilized. Samples

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

• execution in an open system, accomplishing synthesis within significantly shorter durations (from 48 s up to 6 min) than those reported in the aforementioned literature [48]. Mild growth conditions enhance the appeal of the technology by fostering energy efficiency, cost-effectiveness, and safety. It aligns

• underwent structural analysis using a high-resolution X-ray diffractometer X’Pert Pro MRD (Panalytical) equipped with a Cu anode (λ = 1.54060 Å). X-ray photoelectron spectroscopy (XPS) measurements were conducted utilizing a Scienta R4000 hemispherical analyzer with a pass energy of 200 eV and monochromatic

• Al Kα (1486.7 eV) excitation (Scienta MX-650) operating at 150 W. The energy scale was calibrated by setting the C–C bond at 285 eV. Analysis of the spectra was performed using the commercial CASA XPS software package (Casa Software Ltd., version 2.3.17) with Shirley background. The Gaussian

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

• understanding of the sputtering process, the distribution of oxygen atoms in the redeposited layer derived from the numerical data was compared with the corresponding elemental map acquired by energy-dispersive X-ray microanalysis. Keywords: electron microscopy; focused ion beam; level set simulation

• atoms and fluxes due to backscattering of incident ions. Strictly speaking, the distribution of atoms of the i-th material sputtered from the surface element dS1 depends on the polar γ and azimuthal φ angles (Figure 1b) as well as on the ion energy E. It can be described by the function . Since most of

• the sputtered atoms possess rather low energy with the peak value close to the surface binding energy [31], the sputtering of materials induced by these particles was assumed to be negligible. The energy distribution of sputtered atoms also was ignored in the description of their sticking to the

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

• diffraction, Raman spectroscopy, high-resolution transmission electron microscopy, and energy-dispersive X-ray mapping. The TiO2/GQDs-GCE exhibits better electrochemical activity for uric acid and hypoxanthine than GQDs/GCE or TiO2/GCE in differential pulse voltammetry (DPV) measurements. Under optimized

• through edge effects. Edge-functionalized GQDs have oxygen-containing functional groups such as hydroxy, carboxyl, carbonyl, and epoxy groups, which can conjugate to various biological/organic/inorganic molecules such as proteins, antibodies, or metal ions [12]. The capability of electron transfer/energy

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

• device. It exhibits a stronger electric field than the other two devices because of the increased number of charge carriers. Energy band Figure 4 shows that the energy barrier is almost the same for VTFET with DLWLS and VTFET with DLWLS + spacer. The energy band diagram of the VTFET with DLWLS and spacer

• regarding energy band profile. Energy band diagrams of the proposed VTFET with DLWLS + spacer in on-and off-states. Id vs Vgs of the VTFET with DLWLS + spacer and the model in [12]. Comparison between transfer characteristics of VTFET with DLWLS + spacer, DLWLS, and spacer. Capacitance (Cgs)–voltage

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

• into heat energy is an intrinsic optical property of metal nanoparticles when irradiated using near-infrared radiation. However, the impact of size and shape on the photothermal behaviour of gold nanomakura particles possessing optical absorption within 600–700 nm as well as on incorporation in

• scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM/EDX) of the powdered form of AuNM, as shown in Supporting Information File 1, Figure S4. Growth mechanism in AuNMs during seed-mediated synthesis Seed-mediated synthesis approach has been adopted in the present work which is quite

• necessary to check the stability of AuNMs in k-CG hydrogels which was confirmed upon exhibition of plasmon peaks at 600–700 nm wavelengths as shown in Figure 3. The gold nanoparticles in association with hydrogels upon exposure to a broadband light source of 400–700 nm converted light energy into heat, thus

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

• that larger organisms dedicate more energy and resources to growing and maintaining hair. This finding motivates the following questions: (1) What are the purposes of hair? (2) How do these purposes vary with organism size? For countless animal species, hairs are strategically placed throughout the

• preventing water from spreading; thus, they exhibit low wettability. In order to achieve superhydrophobicity, surfaces should have structural hierarchy and be composed of materials with low surface energy. The classic example of such a surface in nature is the lotus leaf [39], which possesses wax-covered

• may be triggered by either mechanical or thermal energy [158]. Hygrosensation Studies have also shown that hairs exhibit heightened sensitivity to changes in humidity levels, enabling arthropods to discern variations in air humidity with remarkable precision. There are three potential mechanisms for

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

• (partially) reduced, under identical processing conditions with identical product nanoparticle diameters of 3 nm [72]. Moreover, the degree of reduction or oxidation was gradually tuned to reach a thermodynamically driven equilibrium with the cumulative laser pulse energy input [72][73]. It indicates a

• than 100 fs are used, and will produce a low-density plasma [83]. More recently, the Vogel group studied the energy spectrum of laser-induced conduction band electrons in water by introducing a simplified splitting scheme and corresponding rate equations, well suited also for the calculation of energy

• spectra at long pulse durations and high irradiance [84]. This approach provides the essential understanding of the dependence of electron energy spectra on laser pulse duration, wavelength, and irradiance, which opens pathways for inducing energy-specific molecular modifications in dielectric media, such

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

• composition of TiN were preserved, the crystallite size was reduced. These TiN nanosheets have a great potential for a range of cutting-edge applications in fields such as medicine, catalysis, and energy-related technologies. Hence, further exploration and development of these TiN nanosheets are expected to

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