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Search for "humidity" in Full Text gives 289 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.
Durable antimicrobial activity of fabrics functionalized with zeolite ion-exchanged nanomaterials against Staphylococcus aureus and Escherichia coli
Beilstein J. Nanotechnol. 2026, 17, 262–274, doi:10.3762/bjnano.17.18
- ]. The susceptibility of bacteria to antimicrobial materials may depend on several factors, such as dose, humidity, and strain specificity [42][43]. Silver has been shown to exert a biocidal effect similar to that of copper against several E. coli and S. aureus strains using lower doses [43]. Likewise
Functional surface engineering for cultural heritage protection: the role of superhydrophobic and superoleophobic coatings – a comprehensive review
Beilstein J. Nanotechnol. 2026, 17, 63–96, doi:10.3762/bjnano.17.6
- environmental conditions, offering long-term protection against light, humidity, pollutants, and other agents of deterioration. Finally, the coating should be safe and ethically acceptable, avoiding the use of hazardous substances and respecting the cultural, historical, and aesthetic significance of the object
- water-absorbent) [53], while, if in indoor environment, they may experience biological fouling (fungi or bacteria) [54][55], which might initiate bio-deterioration [56]. If the substrate is metallic, corrosion caused by water (rain when outdoor and humidity fluctuation when indoor) is the main issue
- and buildings, as well as marble statues both in outdoor and indoor environments). Many approaches are used to solve several issues arising from their intrinsic properties such as porosity, which may cause fungal or bacterial fouling [58], and surface chemistry and the affinity to water and humidity
Quantitative estimation of nanoparticle/substrate adhesion by atomic force microscopy
Beilstein J. Nanotechnol. 2026, 17, 1–14, doi:10.3762/bjnano.17.1
- humidity (RH) and a temperature of 25 °C, whereas the D-LFC method measurements were performed at 40% RH and a temperature of 18 °C. All measurements were taken with a scan angle of 90° with respect to the long axis of the cantilever, and the z-scale used in Gwyddion for data analysis was set to 14 nm
- as humidity and temperature, may also have contributed, particularly through enhanced capillary forces between tip and sample during AFM characterization. In general, as the NPs size increases, the lateral force required to push NPs is expected to increase. This expectation is attributed to the
- manipulation as a first approximation for the work of adhesion as the details in the process of manipulation are rather complex including adhesion, static and dynamic friction, and humidity [49]. Due to the challenges in direct calculation of the dissipated work, the work of separation is approximated using
Ultrathin water layers on mannosylated gold nanoparticles
Beilstein J. Nanotechnol. 2025, 16, 2183–2198, doi:10.3762/bjnano.16.151
- Physics Center (DIPC), Donostia, Spain Fritz-Haber-Institut der Max-Planck-Gesellschaft, Berlin, Germany Fakultät für Physik, Universität Duisburg, Germany Ikerbasque Basque Foundation for Science, Bilbao, Spain 10.3762/bjnano.16.151 Abstract We investigated the effect of air humidity on two gold
- light scattering, and infrared spectroscopy. We probed particles adsorbed on hydrophilic and hydrophobic surfaces with atomic force microscopy (AFM) and vibrational sum frequency generation (VSFG) spectroscopy, both operated under variable air humidity. For AFM, we additionally tested hydrophilic and
- hydrophobic tips. While VSFG indicated preferential hydration of the dimannoside and proved conformational changes in the organic ligands, AFM provided sub-nanometer changes in particle topography due to water adsorption. In general, the dimannoside nanoparticles condense ultrathin water layers upon humidity
Molecular and mechanical insights into gecko seta adhesion: multiscale simulations combining molecular dynamics and the finite element method
Beilstein J. Nanotechnol. 2025, 16, 2055–2076, doi:10.3762/bjnano.16.141
- scales involved. In previous research, we used molecular dynamics simulations to explore various aspects of gecko adhesion [10][11][12][13]. We found that humidity increases the force required to pull a spatula off from a substrate [10][12], a phenomenon also observed in high-humidity atomic force
- gecko keratin [11]. It also helped clarify other aspects of humidity-enhanced adhesion, revealing that keratin softening due to water uptake accounts for only a minor part of the increase in adhesion on very smooth surfaces [13]. The present paper builds on our previous research and extends the
- parametrization of our coarse-grained potential against united-atom simulations of gecko keratin on nonpolar surfaces [10]. Hydrophilic substrates, roughness, and humidity, which introduce additional mechanisms such as keratin softening and capillary forces, have been addressed in our previous spatula-scale
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
- fibers without the lipid core. Furthermore, maintaining ambient relative humidity below 45% proved essential for processing stability. Comprehensive morphological characterization via scanning electron microscopy confirmed the uniformity of the fibers. At the same time, confocal microscopy, cross
- concentration, surface tension, conductivity, and solvent volatility, alongside careful consideration of electrospinning conditions, such as temperature and humidity [18][19]. The polymer selection of nanofibers intended for biomedical applications must prioritize not only mechanical strength, controlled
- evaporation within the core, as also reported by Ricaurte et al. (2022) [46]. Air relative humidity was additionally found to influence solvent evaporation and the formation of uniform HA fibers. Similar to the observations reported by Yao et al. (2013), a stable process without interruptions was only
Mechanical property measurements enabled by short-term Fourier-transform of atomic force microscopy thermal deflection analysis
Beilstein J. Nanotechnol. 2025, 16, 1952–1962, doi:10.3762/bjnano.16.136
- An Agilent Keysight 5500 AFM was used in all experiments with measurements conducted under ambient laboratory conditions of 20–40% humidity. Four samples were analyzed in the experiments, namely, a silicon wafer, freshly-cleaved HOPG, poly(ethylene oxide) (PEO), and polydimethylsiloxane (PDMS). The
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
- stress, being easily degradable or evaporated upon exposure to air, light, heat, and humidity during processing, use, or storage [27][28]. Their volatile nature, susceptibility to oxidation, and insolubility in water limit their industrial application [29]. To overcome these limitations
- ][41][42]. Aedes aegypti is a species of mosquito of the Culicidae family, order Diptera, native to Africa and distributed throughout various regions of the world. This extensive distribution occurs due to the sum of several factors, such as dispersion favored by high temperatures and high humidity
Electrical, photocatalytic, and sensory properties of graphene oxide and polyimide implanted with low- and medium-energy silver ions
Beilstein J. Nanotechnol. 2025, 16, 1794–1811, doi:10.3762/bjnano.16.123
- Department of Inorganic Chemistry, University of Chemistry and Technology, Prague 6, 166 28, Czech Republic Ion Beam Center, Helmholtz-Zentrum Dresden Rossendorf, 01328 Dresden, Germany 10.3762/bjnano.16.123 Abstract Precise control of electrical conductivity, humidity sensitivity, and photocatalytic
- atomic force microscopy. Electrical properties as a function of air humidity were evaluated using a two-point method, and photocatalytic activity was tested by monitoring the UV-induced decomposition of rhodamine B. The results demonstrate that ion implantation significantly reduces surface resistivity
- and enhances both the photocatalytic activity and humidity sensitivity of GO and PI. The most pronounced improvements occurred at higher fluences, where defect generation and partial deoxygenation contributed to optimal performance. Ion implantation thus represents an effective approach for tuning the
Beyond the bilayer: multilayered hygroscopic actuation in pine cone scales
Beilstein J. Nanotechnol. 2025, 16, 1695–1710, doi:10.3762/bjnano.16.119
- function of relative humidity. There were distinct differences between tissues and a pronounced hysteresis between sorption and desorption. Finite element analysis was performed on geometries ranging from simplified bilayer models to complex remodeled scales. Simulation results showed an underestimation of
- technical applications [1][2][3][4]. Of particular interest are, for example, Banksia seed pods [5][6], Hakea fruits [7][8], and scales of pine cones [9][10][11][12], which passively respond to changes in ambient relative humidity by shape morphing to facilitate seed dispersal. In the case of pine cones
- the bending motion of the scale. One crucial influencing factor is the difference within or between tissues, as Eger et al. [23] highlighted. The authors measured the relative change of moisture content as a function of relative humidity by gravimetric water uptake measurements of the sclereid cells
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
Acrocomia aculeata oil-loaded nanoemulsion: development, anti-inflammatory properties, and cytotoxicity evaluation
Beilstein J. Nanotechnol. 2025, 16, 1277–1288, doi:10.3762/bjnano.16.93
- . Six- to eight-week-old female Swiss mice weighing 22 to 28 g were used [66]. Animals were acclimatized under laboratory conditions (25 ± 3 °C, 65 ± 5% humidity) with a 12/12 h light/dark cycle. Animals had free access to food and water at all times and were deprived of food 6 h before the experiment
Functional bio-packaging enhanced with nanocellulose from rice straw and cinnamon essential oil Pickering emulsion for fruit preservation
Beilstein J. Nanotechnol. 2025, 16, 1234–1245, doi:10.3762/bjnano.16.91
- the sample (g·m−1·h−1·Pa−1), L is the sample thickness (m), ΔP is the vapor pressure difference (Pa), S is the saturation vapor pressure at the test temperature (Pa), R1 is the relative humidity inside the dish, and R2 is the relative humidity at the cup. The surface morphology of the biopackaging
Chitosan nanocomposite containing rotenoids: an alternative bioinsecticidal approach for the management of Aedes aegypti
Beilstein J. Nanotechnol. 2025, 16, 1197–1208, doi:10.3762/bjnano.16.88
- by global warming, including rising temperatures, heavy rainfalls, and high humidity, have accelerated mosquito reproduction and expanded its geographic spread. In 2023, dengue reached a record 5 million cases in 80 countries, including historically non-endemic regions such as the United States
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
- humidity sensing performance compared to that of ZnO/ZnS nanorod arrays and ZnO nanorod arrays, with enhanced response, faster recovery, good linearity, and reliable reproducibility across a wide range of relative humidity conditions at room temperature. Giri et al. [48] demonstrated that phase-selective
Influence of ion beam current on the structural, optical, and mechanical properties of TiO2 coatings: ion beam-assisted vs conventional electron beam evaporation
Beilstein J. Nanotechnol. 2025, 16, 1097–1112, doi:10.3762/bjnano.16.81
- structure, and the improvement of stability and homogeneity of the coatings. In addition, it is possible to modify the microstructure, resulting in dense, nearly stoichiometric films that are much more resistant to temperature and humidity changes than films deposited in the conventional EBE process [4][9
Piezoelectricity of hexagonal boron nitrides improves bone tissue generation as tested on osteoblasts
Beilstein J. Nanotechnol. 2025, 16, 1068–1081, doi:10.3762/bjnano.16.78
- (PS, Capricorn Scientific), and 1% ʟ-glutamine (Pan Biotech). Cells were incubated at 37 °C with 5% percent CO2 and 90% humidity. All experiments were performed after cells reached 100% confluence, and the NMs treatment procedure was the same. Both types of NMs were dispersed in cell culture medium
- -plane bending vibration, respectively [43]. The broad band at 3200 cm−1 could be attributed to stretching vibrations of hydroxyl groups (O–H) of hBNs or humidity. Supporting Information File 1, Figure S3 (d) displays the Raman spectrum of hBNs, which reveals a dominant peak at 1367 cm−1, in line with
The impact of tris(pentafluorophenyl)borane hole transport layer doping on interfacial charge extraction and recombination
Beilstein J. Nanotechnol. 2025, 16, 678–689, doi:10.3762/bjnano.16.52
- lock-in amplifier (Zurich Instruments), in an argon atmosphere glove box (less than 1% ppm O2 and negligible humidity). The cantilever used was SCM PIT V2 (resonance frequency: 75 kHz, spring constant: 3 N/m, Bruker). The scan rate of the measurement was 0.5 Hz. To increase the reliability of our data
Aprepitant-loaded solid lipid nanoparticles: a novel approach to enhance oral bioavailability
Beilstein J. Nanotechnol. 2025, 16, 652–663, doi:10.3762/bjnano.16.50
- humidity in the long-term stability study. In vivo pharmacokinetic studies Pharmacoikinetic studies showed a linear relationship between APT release and concentration in rabbit blood plasma (R2 = 0.9959). The pharmacokinetic parameters determined by measuring plasma concentration versus time are displayed
- after one, two, three, and six months [33]. In vivo pharmacokinetic studies Study protocol 10 male rabbits (2 kg body weight) were housed in an animal house under standard environmental conditions of 22 ± 3 °C and 45% relative humidity under a 12 h dark/light cycle (Faculty of Pharmacy, University of
Nanoscale capacitance spectroscopy based on multifrequency electrostatic force microscopy
Beilstein J. Nanotechnol. 2025, 16, 637–651, doi:10.3762/bjnano.16.49
- Nanolab FIB apparatus with a dual Ga+ ion beam. Multifrequency heterodyne electrostatic force microscopy MFH-EFM was measured on an Oxford Instruments/Asylum Research MFP-3D Infinity AFM in a nitrogen glovebox (level of humidity below 0.3%, level of oxygen below 0.1%). The typical resonance frequency of
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
- antidyslipidemic properties in vivo [4][5][6]. EOs are volatile components that are sensitive to temperature, light, oxygen, and humidity [7]. Therefore, it is recommended to use them in drug delivery systems, such as nanostructured systems, which are able to guarantee stability and a better therapeutic effect
Enhancing mechanical properties of chitosan/PVA electrospun nanofibers: a comprehensive review
Beilstein J. Nanotechnol. 2025, 16, 286–307, doi:10.3762/bjnano.16.22
- conductivity. Finally, environmental parameters include relative humidity and temperature [15]. Chitosan, a widely utilized material in electrospun nanofiber membranes, is derived from the crystalline microfibrils of crustaceans, including crabs and prawns. It is biodegradable and exhibits a high capacity for
- , including irregular fluid jet movement, variations in surface tension, and sensitivity to external parameters such as temperature, humidity, and airflow. These factors can disrupt the uniformity of the fiber formation. When the fiber jets are drawn in the direction of the electric field force, the polymer
Probing the potential of rare earth elements in the development of new anticancer drugs: single molecule studies
Beilstein J. Nanotechnol. 2025, 16, 187–194, doi:10.3762/bjnano.16.15
- temperature and with a humidity between 20% to 30%. This experimental procedure has been proved suitable to visualize deposited DNA and DNA–ligand complexes in a reproducible and reliable way [23][24]. The AFM instrument used in the experiments was a NT-MDT-NTEGRA PRIMA operating in tapping mode with TAP300
A review of metal-organic frameworks and polymers in mixed matrix membranes for CO2 capture
Beilstein J. Nanotechnol. 2025, 16, 155–186, doi:10.3762/bjnano.16.14
- )2 chemically bind CO2 to form new, covalent carbamic acid (RNHCOOH) species at an adsorption capacity of 1.2 mmol CO2·g−1 [53]. Since the adsorption takes place at the LBSs rather than the OMSs, the influence of humidity was negligible to the adsorption performance. In wet conditions at 95% relative
- humidity (RH), chemisorption of CO2 resulted in ammonium carbamate (RNHCOO−+H3NR) species formation, and the adsorption capacity remained at 1.2 mmol CO2·g−1 [53]. 3 Integration of MOFs in MMMs 3.1 General consideration for MMMs The concept of MMMs dates back to the 1860s [16][69] and the need to
Comparison of organic and inorganic hole transport layers in double perovskite material-based solar cell
Beilstein J. Nanotechnol. 2025, 16, 119–127, doi:10.3762/bjnano.16.11
- under ambient conditions with humidity levels of 35–40%. Here, 3,4-dihydroxyphenethylamine hydrochloride (3,4-DpACl) was used as an additive during perovskite fabrication. Despite significant research efforts, there are stability issues when working under critical environmental conditions, which is an
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