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Search for "gap" in Full Text gives 752 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.
Stereodiscrimination of guests in chiral organosilica aerogels studied by ESR spectroscopy
Beilstein J. Nanotechnol. 2025, 16, 2034–2054, doi:10.3762/bjnano.16.140
- , theoretical methods have helped to gain deeper insights, but there is still a gap in experimental data. Different experimental methods are used to investigate transport in porous media. Chromatography itself has to be counted as one method that delivers information about the macroscopic properties of a
Beyond the shell: exploring polymer–lipid interfaces in core–shell nanofibers to carry hyaluronic acid and β-caryophyllene
Beilstein J. Nanotechnol. 2025, 16, 2015–2033, doi:10.3762/bjnano.16.139
- critical gap persists in thoroughly understanding the complex polymer–lipid interactions, particularly in systems designed for the simultaneous co-encapsulation of compounds with vastly different physicochemical properties, such as hydrophilic HA and lipophilic βCp. An in-depth understanding of these
- engineered for hyaluronic acid and βCp co-delivery. The insights gained from this investigation are crucial for bridging this specific knowledge gap and may guide the design of optimized hybrid therapeutic platforms. Results and Discussion This study aimed to develop and investigate PLA nanofibers
The cement of the tube-dwelling polychaete Sabellaria alveolata: a complex composite adhesive material
Beilstein J. Nanotechnol. 2025, 16, 1998–2014, doi:10.3762/bjnano.16.138
- characterization of the adhesive system of S. alveolata through the ultrastructural and chemical characterization of the two types of adhesive cells and the cement they produce, as well as the identification of new adhesive protein candidates. Another goal is to address the gap in knowledge about adhesive protein
Laser ablation in liquids for shape-tailored synthesis of nanomaterials: status and challenges
Beilstein J. Nanotechnol. 2025, 16, 1963–1997, doi:10.3762/bjnano.16.137
- achieved. Despite recent advances, there is still a gap in understanding the routes for shape control of the forming nanomaterials hindered by the limited information about the mechanisms of laser ablation process in liquids. The demand for anisotropic nanomaterials is growing, associated with the rapid
Quantum circuits with SINIS structures
Beilstein J. Nanotechnol. 2025, 16, 1931–1941, doi:10.3762/bjnano.16.134
- contact. When tunneling from a normal metal into a superconductor, due to the presence of an energy gap (Δ), only electrons whose energy exceeds Δ can tunnel into the superconductor. Without applying an external voltage or in the case when eV < Δ (T = 0), tunneling does not occur. Accordingly, a tunnel
- the energy gap of the superconductor and kB is the Boltzmann constant. The differential resistance is expressed by the following formula: It should also be noted that, in addition to the tunnel current in NIS structures, the presence of a subgap (Andreev) current caused by the Andreev reflection
- external noise and increase the signal-to-noise ratio, the NIS junctions are connected in series arrays (Figure 3). The temperature dependency of the resistance ratio for aluminum SIN junctions is shown in Figure 4. Electron coolers The tunneling current, when biased near the energy gap, carries hot
Targeting the vector of arboviruses Aedes aegypti with nanoemulsions based on essential oils: a review with focus on larvicidal and repellent properties
Beilstein J. Nanotechnol. 2025, 16, 1894–1913, doi:10.3762/bjnano.16.132
On the road to sustainability – application of metallic nanoparticles obtained by green synthesis in dentistry: a scoping review
Beilstein J. Nanotechnol. 2025, 16, 1851–1862, doi:10.3762/bjnano.16.128
- conducted exclusively in vitro experiments, with no progression to in vivo experimentation in 53.7% (n = 53) of cases. Moreover, 47.8% (n = 45) lacked cytotoxicity assessments or evaluations in human cells. This gap raises important concerns regarding the long-term biocompatibility, biodistribution, and
Ambient pressure XPS at MAX IV
Beilstein J. Nanotechnol. 2025, 16, 1677–1694, doi:10.3762/bjnano.16.118
- the use of XPS in reactive environments. Ambient pressure XPS (APXPS) with soft X-rays addresses this limitation by enabling surface chemical analysis at pressures up to the millibar range, bridging the gap that restricts conventional XPS to UHV. This allows for in situ and operando investigations of
- as HfO2, which allows for the creation of much smaller gate sizes. Another suggested change is to substitute the silicon channels with a III–V semiconductor material such as InAs, which, among other properties, has a narrower band gap [62]. However, one challenge to overcome with the InAs/HfO2
- spectrometry will enable a more holistic understanding of structure–function relationships at working interfaces. Additionally, the development of correlated, spatially resolved measurements, potentially via photoemission electron microscopy (PEEM) or scanning probe methods, could further bridge the gap
Few-photon microwave fields for superconducting transmon-based qudit control
Beilstein J. Nanotechnol. 2025, 16, 1580–1591, doi:10.3762/bjnano.16.112
- experiments, where everyone deals with the weak coupling regime when g/2π ≈ 10 MHz and γ/2π ≈ −100 MHz. Devoret et al. [49] showed that the coupling of the JJ system with the resonator can be significantly enhanced by placing it in the gap of the central conductor of the coplanar waveguide. In this case, the
Transient electronics for sustainability: Emerging technologies and future directions
Beilstein J. Nanotechnol. 2025, 16, 1545–1556, doi:10.3762/bjnano.16.109
- -bandgap bioresorbable semiconductors based on magnesium–silicon alloys, such as Mg2Si, could be promising candidates to fill this gap (Figure 2a) [49][50]. However, further exploration is needed to discover and engineer additional semiconducting materials, including a broader range of silicon- or
Laser processing in liquids: insights into nanocolloid generation and thin film integration for energy, photonic, and sensing applications
Beilstein J. Nanotechnol. 2025, 16, 1428–1498, doi:10.3762/bjnano.16.104
- empirical relationship based on the gap distance between the blade and the substrate, g, and c, the concentration of solid material in the ink in grams per cubic centimeter, and the density of the material, ρ in grams per cubic centimeter [112]: Thin films of ZnO and Ag/Au–ZnO hybrid nanomaterials were
The role of biochar in combating microplastic pollution: a bibliometric analysis in environmental contexts
Beilstein J. Nanotechnol. 2025, 16, 1401–1416, doi:10.3762/bjnano.16.102
- multifunctionality presents a promising approach for mitigation. Nonetheless, further research is required to bridge the gap between laboratory-scale studies and real-world applications, ensuring technological feasibility, economic viability, and alignment with future regulatory frameworks. Conclusion and Future
Ferroptosis induction by engineered liposomes for enhanced tumor therapy
Beilstein J. Nanotechnol. 2025, 16, 1325–1349, doi:10.3762/bjnano.16.97
- therapy and is closely linked to alterations in cancer metabolism [2][3][4]. Changed metabolic pathways allow cancer cells to grow faster than usual, adapt to restricted nutrient conditions, and develop drug resistance [3]. There is still a gap in the efficacy of various cancer therapies despite numerous
Wavelength-dependent correlation of LIPSS periodicity and laser penetration depth in stainless steel
Beilstein J. Nanotechnol. 2025, 16, 1302–1315, doi:10.3762/bjnano.16.95
- -organization [33] to second harmonic generation [11] and cavitation instability [23][50][51]. Despite numerous studies, the formation mechanism of HSFL and the reason for their shorter periodicity compared to the laser wavelength remain elusive. Our previous work addressed this gap by patterning a single line
Enhancing the photoelectrochemical performance of BiOI-derived BiVO4 films by controlled-intensity current electrodeposition
Beilstein J. Nanotechnol. 2025, 16, 1289–1301, doi:10.3762/bjnano.16.94
- absorption still measurable up to about 650 nm. This sub-bandgap absorption occurs because of the creation of mid-gap states, mainly caused by missing oxygen atoms and structural issues that arise during high-current electrodeposition or when using higher amounts of the VO(acac)2 precursor. The redshifted
Better together: biomimetic nanomedicines for high performance tumor therapy
Beilstein J. Nanotechnol. 2025, 16, 1246–1276, doi:10.3762/bjnano.16.92
- applications. This discussion delves into the challenges and opportunities presented by biomimetic nanoparticles and offers a comprehensive exploration of their fundamentals and recent breakthroughs, with an eye towards clinical translation. By bridging the gap between scientific innovation and clinical
Electronic and optical properties of chloropicrin adsorbed ZnS nanotubes: first principle analysis
Beilstein J. Nanotechnol. 2025, 16, 1184–1196, doi:10.3762/bjnano.16.87
- highly toxic chemical warfare agent, remains an area with untapped potential. Addressing this gap, the present work constructs an armchair ZnS NT to investigate its adsorption configurations, charge transfer, band structure, density of states, optical absorption, and optical conductivity using a density
- , the most significant variation in the energy gap is observed for orientation A. Consequently, the conductivity of ZnS NT exhibits a significant variation, demonstrating its suitability for sensing applications. The sensitivity of the sensor is defined in terms of the change in the bandgap [61] by
- between the valence and conduction bands, reflecting the fundamental optical properties of the material. Furthermore, the absence of significant absorption in the visible region (>400 nm) underscores the lack of mid-gap states in pristine ZnS NTs. Such optical characteristics align with previous reports
Multifunctional properties of bio-poly(butylene succinate) reinforced with multiwalled carbon nanotubes
Beilstein J. Nanotechnol. 2025, 16, 1014–1024, doi:10.3762/bjnano.16.76
- improved thermal stability, crystallization temperatures, stiffness, and electrical conductivity (not investigated in this work), a significant gap remains regarding tribological performance, surface activity, and rheological responses under varying loads and temperatures. This study demonstrates that the
Time-resolved probing of laser-induced nanostructuring processes in liquids
Beilstein J. Nanotechnol. 2025, 16, 968–1002, doi:10.3762/bjnano.16.74
- dynamics across multiscale time domains remains elusive. Multiplexing probes, such as the combination of imaging and crystal diffraction, have advanced the understanding of complex phenomena by narrowing the gap between theory and observation (Figure 3) [80][81]. In an experiment combining single-particle
Heat-induced transformation of nickel-coated polycrystalline diamond film studied in situ by XPS and NEXAFS
Beilstein J. Nanotechnol. 2025, 16, 887–898, doi:10.3762/bjnano.16.67
- eV corresponding to a second absolute gap in the diamond band structure [38]. In the TEY spectra of both PCD and Ni-PCD films, the aforementioned spectral features are well pronounced, indicating the preservation of the ordered crystalline structure of diamond in the bulk of the film after annealing
- spectra display the characteristic features of sp3-hybridized carbon, namely, the σ*(sp3)-resonance at 289.3 eV and the second gap at 302.3 eV, as well as the π*(sp2)- and σ*(sp2)-resonances at 285.3 and 291.4 eV of the sp2-hybridized carbon. In the spectrum of the Ni-SCD face, the π*(sp2)- and σ*(sp2
Morphology and properties of pyrite nanoparticles obtained by pulsed laser ablation in liquid and thin films for photodetection
Beilstein J. Nanotechnol. 2025, 16, 785–805, doi:10.3762/bjnano.16.60
- [35], the p-type nature of FeS2 was identified. Based on this, an n-type Si (n-Si) substrate was chosen to achieve the photodiode structure. Well cleaned n-type silicon substrates were used as the anode and the cathode in the EPD setup. With a 4.5 mm gap between them, the electrodes were positioned
Nanostructured materials characterized by scanning photoelectron spectromicroscopy
Beilstein J. Nanotechnol. 2025, 16, 700–710, doi:10.3762/bjnano.16.54
- few nanometers along the entire nanowire. For operando SPEM measurements, nanowires were transferred onto a prepatterned device template with flat, individually contacted Au/Ti electrodes deposited onto a SiO2/Si substrate, separated by a 1.5 µm wide insulating gap. Optical microscopy images of the
- nanowire surface. The measured binding energy shift amounts to 0.48 eV in the In 4d spectra and 0.47 eV in the P 2p spectra. Even though this is a significant and well-resolved shift, its value is surprisingly low compared with the InP band gap of 1.34 eV at room temperature. Similarly grown InP p–n
High-temperature epitaxial growth of tantalum nitride thin films on MgO: structural evolution and potential for SQUID applications
Beilstein J. Nanotechnol. 2025, 16, 690–699, doi:10.3762/bjnano.16.53
- significant progress, a major challenge remains in discovering materials that exhibit superconductivity at higher, more practical temperatures. The efficient fabrication of materials with a low superconducting energy gap and an intermediate Tc is crucial for the development and enhancement of superconducting
- has a superconductive energy gap lower than that of NbN [7], the most commonly used material for single-photon detectors in the gigahertz range; hence, this material can be a better candidate for superconductive electronic devices. Depending on the amount of incorporated nitrogen, x, the tantalum
Nanoscale capacitance spectroscopy based on multifrequency electrostatic force microscopy
Beilstein J. Nanotechnol. 2025, 16, 637–651, doi:10.3762/bjnano.16.49
- study materials such as perovskite solar cells [18][19][20] and Li-ion batteries [21][22][23]. AFM enables simultaneous acquisition of topographic and electronic data by applying AC or DC voltages across the tip–sample gap, allowing for the detection of capacitive forces [24][25] or contact potential
- the gradient of the energy, WC, stored in the tip–sample capacitor C with respect to the tip–sample separation z, as given by where Vtip−sample specifies the electrical voltage across the tip–sample gap. In conventional EFM with single-frequency excitation, Vtip−sample is given by Equation 2 [18
- excitation signal that has to be considered in Equation 12. By using appropriate means of coupling the electrical excitation into the tip–sample gap, experiments at microwave or even at optical frequencies are possible. In our setup, the two excitation frequencies can be varied in frequency from ≈600 kHz up
A formulation containing Cymbopogon flexuosus essential oil: improvement of biochemical parameters and oxidative stress in diabetic rats
Beilstein J. Nanotechnol. 2025, 16, 617–636, doi:10.3762/bjnano.16.48
- behavior of the formulations was assessed by flow tests using the Modular Compact Rheometer (Anton Paar, MRC 302). A cone-plate geometry was used (diameter 49.9 mm, angle 1°, and gap 96 μm). The shear stress (γ) was evaluated as a function of the shear rate ranging from 0.1 to 200 s−1. The experiment was
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