Electron transport through nanoscale multilayer graphene and hexagonal boron nitride junctions

• Aleksandar Staykov and
• Takaya Fujisaki

Beilstein J. Nanotechnol. 2025, 16, 2132–2143, doi:10.3762/bjnano.16.147

• -dimensional lattice curvature [6]. The in-plane electron transport is a result of the high charge carrier mobility in the two-dimensional π-conjugated electron system. Deviation from the perfect hexagonal lattice by the insertion of heteroatoms, structural defects, or local disorder, creates electron trapping

• sites and hinders the electron mobility [7]. In addition, zigzag and armchair edges in graphene nanoribbons will open the bandgap and create trapping sites. Thus, small graphene nanoribbons will show higher electrical resistance compared to larger nanoribbons and infinite two-dimensional sheets. The in

• with voltage. NDR occurs in various electronic systems, such as tunnel diodes, resonant tunneling diodes, and molecular junctions, and arises from quantum mechanical effects like tunneling or charge carrier trapping. In short molecular and nanoscale junctions, NDR is assigned to localization of a

Laser ablation in liquids for shape-tailored synthesis of nanomaterials: status and challenges

• Natalie Tarasenka

Beilstein J. Nanotechnol. 2025, 16, 1963–1997, doi:10.3762/bjnano.16.137

Photocatalytic degradation of ofloxacin in water assisted by TiO₂ nanowires on carbon cloth: contributions of H₂O₂ addition and substrate absorbability

• Iram Hussain,
• Lisha Zhang,
• Zhizhen Ye and
• Jin-Ming Wu

Beilstein J. Nanotechnol. 2025, 16, 1567–1579, doi:10.3762/bjnano.16.111

• produced during photocatalytic OFL degradations were clarified using trapping studies. n-Butanol, potassium iodide (KI), and potassium bromate (KBrO3) were employed as quenchers for hydroxyl radicals [31], holes [32], and e− [33], respectively. Figure 8 illustrates that n-butanol reduced the OFL removal of

• ofloxacin in water with high initial concentrations of 50–200 ppm. Importantly, introducing H2O2 beyond a critical concentration further improved degradation efficiency by facilitating generation of reactive oxygen species, especially hydroxyl radicals. Trapping experiments suggest that the photogenerated

• . Initial OFL concentration: 50 ppm. OFL degradations assisted by TiO2 nanowires on carbon cloth with different radical trapping agents. The initial concentration is 50 ppm. (b) Radical pathway of the photocatalytic OFL degradation in the presence of CC/NW-450 °C. (a) Photocatalytic degradation curves of 50

Influence of laser beam profile on morphology and optical properties of silicon nanoparticles formed by laser ablation in liquid

• Natalie Tarasenka,
• Vladislav Kornev,
• Alena Nevar and
• Nikolai Tarasenko

Beilstein J. Nanotechnol. 2025, 16, 1533–1544, doi:10.3762/bjnano.16.108

• outer rings of the Bessel beam should be considered when discussing the morphology peculiarities of the formed NPs. At later stages of the process, the outer rings might be also involved in nucleation and growth of nanoparticles by trapping the produced seeds and guiding their aggregation in distinct

Laser processing in liquids: insights into nanocolloid generation and thin film integration for energy, photonic, and sensing applications

• Akshana Parameswaran Sreekala,
• Pooja Raveendran Nair,
• Jithin Kundalam Kadavath,
• Bindu Krishnan,
• David Avellaneda Avellaneda,
• M. R. Anantharaman and
• Sadasivan Shaji

Beilstein J. Nanotechnol. 2025, 16, 1428–1498, doi:10.3762/bjnano.16.104

Functional bio-packaging enhanced with nanocellulose from rice straw and cinnamon essential oil Pickering emulsion for fruit preservation

• Tuyen B. Ly,
• Duong D. T. Nguyen,
• Hieu D. Nguyen,
• Yen T. H. Nguyen,
• Bup T. A. Bui,
• Kien A. Le and
• Phung K. Le

Beilstein J. Nanotechnol. 2025, 16, 1234–1245, doi:10.3762/bjnano.16.91

• the trapping effect of the polymer matrix on CEO [31]. XRD analysis (Figure 1c) shows that all biopackaging samples exhibit only large peaks at around 22° and 26°, which correspond to the (101) and (200) planes of the PVA structure [40]. It is to note that a slight peak shift to higher angles can be

Ar⁺ implantation-induced tailoring of RF-sputtered ZnO films: structural, morphological, and optical properties

• Manu Bura,
• Divya Gupta,
• Arun Kumar and
• Sanjeev Aggarwal

Beilstein J. Nanotechnol. 2025, 16, 872–886, doi:10.3762/bjnano.16.66

• represent sub-bandgap absorptions due to defects. The optical bandgap values decrease after implantation from 3.29 ± 0.05 eV to 2.89 ± 0.04 eV with the rise in ion fluence. This is assigned to the emergence of defect-trapping levels between valence band and conduction band [46]. These trapping levels can be

• Figure 11. Generally, implanted ions lead to the production of point defects, which act as trapping centers and affect the optical absorption [47]. Thus, a progressive decrement in bandgap values with increasing fluence is ascribed to lattice disorder due to argon ion implantation. Moreover, we have

Insights into the electronic and atomic structures of cerium oxide-based ultrathin films and nanostructures using high-brilliance light sources

• Paola Luches and
• Federico Boscherini

Beilstein J. Nanotechnol. 2025, 16, 860–871, doi:10.3762/bjnano.16.65

• on samples with different defectivity and using techniques with different probing depths suggest that defects can act as polaron trapping and recombination sites and that the excited charge dynamics can be different on the surface and in the bulk of the investigated oxide. The chemical sensitivity of

Polyurethane/silk fibroin-based electrospun membranes for wound healing and skin substitute applications

• Iqra Zainab,
• Zohra Naseem,
• Syeda Rubab Batool,
• Muhammad Waqas,
• Ahsan Nazir and
• Muhammad Anwaar Nazeer

Beilstein J. Nanotechnol. 2025, 16, 591–612, doi:10.3762/bjnano.16.46

• ability of SF films to enhance light trapping in photoelectronic devices. Furthermore, combining SF films with biodegradable solar cells has the potential to power next-generation biomedical equipment, providing long-term energy solutions for diagnostic and therapeutic applications [93]. Silk fibroin

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

• surface reduces the reflection of UV–visible light because of light trapping by multiple reflections [47][48][49]. Ar-ion bombardment for 3 h leads to the development of a well-defined nanopattern on the silicon surface; hence, the reflectivity becomes minimal compared to the other two surfaces that were

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

• of films with substrate temperature [42]. Grain boundaries have a significant effect on the electric transport properties in polycrystalline films. Grain boundaries are growth process-dependent phenomena and have a large number of charge-trapping centres. Thus, grain boundaries reduce the mobility of

Emerging strategies in the sustainable removal of antibiotics using semiconductor-based photocatalysts

• Yunus Ahmed,
• Keya Rani Dutta,
• Parul Akhtar,
• Md. Arif Hossen,
• Md. Jahangir Alam,
• Obaid A. Alharbi,
• Hamad AlMohamadi and
• Abdul Wahab Mohammad

Beilstein J. Nanotechnol. 2025, 16, 264–285, doi:10.3762/bjnano.16.21

• generation of holes and electrons. Specifically, it contributed 70.1% of the holes and 29.9% of the electrons, in comparison to Co-doped TiO2 and N-doped TiO2 [60]. This can be attributed to the electron-trapping capabilities of Co ions, which enhance charge transfer and facilitate highly efficient electron

• , the photocatalytic TC degradation performance decreased to 66.82% when the catalyst loading was increased to 20 mg/L. The stability of the nanocomposite photocatalyst remained at 94.45% after 4th cycle of reuse. Trapping analysis showed that scavengers reduced the photodegradation rates. Bismuth

Recent advances in photothermal nanomaterials for ophthalmic applications

• Jiayuan Zhuang,
• Linhui Jia,
• Chenghao Li,
• Rui Yang,
• Jiapeng Wang,
• Wen-an Wang,
• Heng Zhou and
• Xiangxia Luo

Beilstein J. Nanotechnol. 2025, 16, 195–215, doi:10.3762/bjnano.16.16

• via non-radiative relaxation, resulting in localized lattice heating [76][77]. Therefore, semiconductors with narrow bandgaps typically show broad absorption spectra and high efficiency in photon trapping. In contrast, wide-bandgap semiconductors have a more limited range of light absorption and less

• treatment of chronic ocular diseases, as well as the “explosive release” of passive drug delivery systems [116]. Furthermore, photothermal drug delivery systems can be surface-modified to prolong drug residence time, improve mobility, avoid trapping, and provide targeting capabilities, which helps to

• order to limit the ablation to the ILM more precisely, it is necessary to avoid ICG obstruction and trapping by the vitreous collagen network (the surface charge of ICG NPs should be negative or neutral, and the size of the ICG NPs should be less than 550 nm), as well as to avoid ICG crossing the ILM to

Bioinspired nanofilament coatings for scale reduction on steel

• Siad Dahir Ali,
• Mette Heidemann Rasmussen,
• Jacopo Catalano,
• Christian Husum Frederiksen and
• Tobias Weidner

Beilstein J. Nanotechnol. 2025, 16, 25–34, doi:10.3762/bjnano.16.3

• protrusions that have an overhanging shape and low surface energy can effectively render a surface super-hydrophobic (Figure 1D,F). This texture creates an energy barrier, causing water droplets to rest on the protrusions while trapping air beneath them. In analogy with the texture of Collembola skin, this

Ultrablack color in velvet ant cuticle

• Vinicius Marques Lopez,
• Wencke Krings,
• Juliana Reis Machado,
• Stanislav Gorb and
• Rhainer Guillermo-Ferreira

Beilstein J. Nanotechnol. 2024, 15, 1554–1565, doi:10.3762/bjnano.15.122

• a light-trapping mechanism and can enhance absorption by 5% compared to a flat surface. The dense layer of black epicuticular setae further enhances ultrablack coloration. Ishay and collaborators [22] suggested that longitudinal chitinous plates would be interconnected by dark transverse and

A biomimetic approach towards a universal slippery liquid infused surface coating

• Ryan A. Faase,
• Madeleine H. Hummel,
• AnneMarie V. Hasbrook,
• Andrew P. Carpenter and
• Joe E. Baio

Beilstein J. Nanotechnol. 2024, 15, 1376–1389, doi:10.3762/bjnano.15.111

• represent a novel method of surface passivation that involves trapping a liquid, often an oil, onto a porous surface [4][29]. The result is an antifouling surface that has been proposed to resist adhesion of coagulation factors [4][29]. Yet, the activation of coagulation factors, specifically FXII, and the

• prolonged clotting time they observed on a SLIPS-coated catheter was due to reduced activation of the contact system, which implied a lower concentration of FXIIa on their surfaces [18]. Additionally, it has been shown that FXII activation is reduced at hydrophilic surfaces [48], potentially due to trapping

Mn-doped ZnO nanopowders prepared by sol–gel and microwave-assisted sol–gel methods and their photocatalytic properties

• Cristina Maria Vlăduț,
• Crina Anastasescu,
• Silviu Preda,
• Oana Catalina Mocioiu,
• Simona Petrescu,
• Jeanina Pandele-Cusu,
• Dana Culita,
• Veronica Bratan,
• Ioan Balint and
• Maria Zaharescu

Beilstein J. Nanotechnol. 2024, 15, 1283–1296, doi:10.3762/bjnano.15.104

• catalysts. This observation can be correlated to the ability of the SG material to produce O2− by electron trapping. In contrast, the ·OH generation in the presence of the MW catalyst could explain the higher formation rate of CO2 from the beginning of the photocatalytic process because of the high

• resolution of 0.5 nm, and 10 nm slits in excitation and emission. All measurements were performed for 0.001 g catalyst suspended after ultrasonication in ultrapure water at room temperature (25 °C) and λexc = 270 nm. For ROS identification, ·OH radicals trapping was performed with 10 mM coumarin solution

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

• electrical conductivity, which allows them to serve as sites for trapping photogenerated charges. This, in turn, facilitates the collection of charge carriers [18] leading to interesting photodegradation properties [19][20]. During the photochemical reaction process, the light excitation induces the

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

• risk of trapping contaminants in the inter-tarsomeric membranous region. The removal of particulate contaminants is very important as they are known to cause abrasive wear in the open insect joints [86]. Anti-adhesive surface structures in the periphery of the active working areas of the attachment

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

• longitudinal axis (Figure 1) for trapping small molecules either into the bilayer or their aqueous space more efficiently than liposomes [34][35]. In this case, nanoarchaeosomes incorporated ALN to a higher extent than HSPC-Chol liposomes [29], as shown by their ≈1.4 times higher ALN/lipid ratio. Cytotoxicity

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

• processes of photogeneration and carrier annihilation (by electron–hole recombination). In addition, from the venture of time-resolved KPFM under pulsed illumination, the SPV dynamics are mainly governed by the effective carrier mobility and trapping mechanisms. The main factor limiting the photocharging

• electron trapping centres. The blend morphology, phase composition and concentration gradients of the donor and acceptor species (through the film thickness) can therefore have a dramatic impact on the SPV decay dynamics probed by KPFM. The sample investigated in this work has been specifically processed

• consistent with a well-known fact for fullerene derivative-based heterojunctions: PC71BM aggregates act as charge trapping centres. The trap release processes become the limiting factor determining the SPV decay dynamics. It is also important to note that although both sets of data (amplitude/phase) show

Humidity-dependent electrical performance of CuO nanowire networks studied by electrochemical impedance spectroscopy

• Jelena Kosmaca,
• Juris Katkevics,
• Jana Andzane,
• Raitis Sondors,
• Liga Jasulaneca,
• Raimonds Meija,
• Kiryl Niherysh,
• Yelyzaveta Rublova and
• Donats Erts

Beilstein J. Nanotechnol. 2023, 14, 683–691, doi:10.3762/bjnano.14.54

• 20–50% (Figure 3a). Possibly, at these RH levels, the concentration of free charge carriers in the CuO nanowires reduces, as hole trapping [32] occurs due to adsorption of gaseous H2O molecules on the CuO surface, dissociation in H+ and OH−, and formation of surface dipoles (Cu+–OH−). Water reactions

Investigations on the optical forces from three mainstream optical resonances in all-dielectric nanostructure arrays

• Guangdong Wang and
• Zhanghua Han

Beilstein J. Nanotechnol. 2023, 14, 674–682, doi:10.3762/bjnano.14.53

• large contrast in the optical forces generated with these resonances is attributed to a higher electromagnetic field enhancement provided by the quasi-BIC. These results suggest that the quasi-BIC resonance is preferred when one employs all-dielectric nanostructure arrays for the trapping and

• manipulation of nanoparticles by optical forces. It is important to use low-power lasers to achieve efficient trapping and avoid any harmful heating effects. Keywords: all-dielectric nanostructures; anapole; optical force; quasi-bound states in the continuum; toroidal dipole; Introduction Optical forces have

• numerical results to compare the optical trapping capability provided by all-dielectric nanostructures based on the excitation of these three different modes. Using an array of high-index silicon disks with elaborately designed slots, all these three resonances can be supported by the same platform. The

Titania nanoparticles for photocatalytic degradation of ethanol under simulated solar light

• Evghenii Goncearenco,
• Iuliana P. Morjan,
• Claudiu Teodor Fleaca,
• Florian Dumitrache,
• Elena Dutu,
• Monica Scarisoreanu,
• Valentin Serban Teodorescu,
• Alexandra Sandulescu,
• Crina Anastasescu and
• Ioan Balint

Beilstein J. Nanotechnol. 2023, 14, 616–630, doi:10.3762/bjnano.14.51

• from the interaction with photogenerated hydroxyl radicals. Despite the fact that radical trapping was performed in aqueous solution, it can be indicative for the ability of the catalyst surface to generate hydroxyl radicals in the present investigated system. The main reactions leading to (•OH

• well as the oxidation states were found from the XPS spectra by using the “Avantage” software, version 5.978. ROS identification Trapping of •OH radicals was performed with 10 mM coumarin (Merck) solution and 0.001 g suspended catalyst exposed to simulated solar irradiation. The formation of a

Conjugated photothermal materials and structure design for solar steam generation

• Chia-Yang Lin and
• Tsuyoshi Michinobu

Beilstein J. Nanotechnol. 2023, 14, 454–466, doi:10.3762/bjnano.14.36

• ratio, high porosity, and high mass transport. Therefore, they are often applied to SSG absorbers along with other macrostructures such as membranes and foams [29][52][53][54][55]. One noticeable example is the study of nanofiber-based light-trapping coatings [29]. Ma et al. proposed an ultrasonic spray

• coating method to obtain light-trapping coatings of nanofibers by the copolymerization of dopamine and pyrrole, which can be directly and rapidly synthesized on a polystyrene (PS) foam at room temperature (Figure 9). Due to its excellent wettability, the coating is water permeable and can be directly

• included for comparison in (c). (d) Schematic illustration of light trapping by surface structures formed on the multilayer PPy nanosheets. Figure 6 was adapted from [32], X. Wang et al., “Multilayer Polypyrrole Nanosheets with Self-Organized Surface Structures for Flexible and Efficient Solar–Thermal