Insect attachment on waxy plant surfaces: the effect of pad contamination by different waxes

• Elena V. Gorb and
• Stanislav N. Gorb

Beilstein J. Nanotechnol. 2024, 15, 385–395, doi:10.3762/bjnano.15.35

• individual male beetles were tested. In all, 135 force experiments were conducted. Force tests were carried out at 22–25 °C temperature and 60%–75% relative humidity. The statistical analyses of the values of the maximum traction force Fmax, the first peak of the traction force Fpeak1, and the time TFmax

A multi-resistance wide-range calibration sample for conductive probe atomic force microscopy measurements

• François Piquemal,
• Khaled Kaja,
• Pascal Chrétien,
• José Morán-Meza,
• Frédéric Houzé,
• Christian Ulysse and
• Abdelmounaim Harouri

Beilstein J. Nanotechnol. 2023, 14, 1141–1148, doi:10.3762/bjnano.14.94

• MPS150) coupled to a programmable voltage source (Marconi 104A) and a high-precision ammeter to measure the resistance values of the SMD devices in an electromagnetically shielded environment under stabilized air temperature (22.9 ± 0.1) °C and relative humidity (40.7 ± 0.3)%. Two different calibrated

Curcumin-loaded albumin submicron particles with potential as a cancer therapy: an in vitro study

• Nittiya Suwannasom,
• Netsai Sriaksorn,
• Chutamas Thepmalee,
• Krissana Khoothiam,
• Ausanai Prapan,
• Hans Bäumler and
• Chonthida Thephinlap

Beilstein J. Nanotechnol. 2023, 14, 1127–1140, doi:10.3762/bjnano.14.93

• FBS (10%) and penicillin/streptomycin (1%) at 37 °C in a CO2 incubator (95% relative humidity, 5% CO2). Huh-7, HDFB, and MMNK-1 cells were cultured in DMEM, and MCF-7 cells were cultured in RPMI cell culture medium. The cells were then seeded to grow 24 h prior to treatment at a density of 5 × 103

Sulfur nanocomposites with insecticidal effect for the control of Bactericera cockerelli

• Lany S. Araujo-Yépez,
• Juan O. Tigrero-Salas,
• Vicente A. Delgado-Rodríguez,
• Vladimir A. Aguirre-Yela and
• Josué N. Villota-Méndez

Beilstein J. Nanotechnol. 2023, 14, 1106–1115, doi:10.3762/bjnano.14.91

• temperature, 80 ± 10% relative humidity, and 12 h light/12 h dark photoperiod) [55]. Evaluation of insecticidal efficacy of nanocomposites The evaluation was carried out in vitro in the entomology laboratory of the Universidad de las Fuerzas Armadas – ESPE with eight treatments (Table 2). The experimental

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

• , Riga, Latvia 10.3762/bjnano.14.54 Abstract Electrochemical impedance spectroscopy was applied for studying copper oxide (CuO) nanowire networks assembled between metallic microelectrodes by dielectrophoresis. The influence of relative humidity (RH) on electrical characteristics of the CuO nanowire

• nanowires in combination with good electrical conductivity and thermoelectric power reaching 500 µV/K enables their application as p-type components for environmentally friendly thermoelectric devices [3][4]. Investigating the influence of relative humidity (RH) and understanding conductivity mechanisms in

• and phase angle ϕ vs log f. (a) Impedance magnitude |Z| vs relative humidity RH (dashed line is a guide to the eyes) at various T; (b) |Z| vs T at various RH. (c–e) Schematics of the processes induced by water chemisorption and physisorption on the CuO nanowire surfaces: (c) formation of a (Cu+–OH

Batch preparation of nanofibers containing nanoparticles by an electrospinning device with multiple air inlets

• Dong Wei,
• Chengwei Ye,
• Adnan Ahmed and
• Lan Xu

Beilstein J. Nanotechnol. 2023, 14, 141–150, doi:10.3762/bjnano.14.15

• experiments were performed at 25 °C and 60% relative humidity. The following MEAI parameters were used. The receiving distance was 18 cm, the speed of the receiving drum was 300 r/min, the air flow rates were 0, 50, 100, and 150 m3/h, and the spinning voltages were 40, 50, and 60 kV. Measurement and

Studies of probe tip materials by atomic force microscopy: a review

• Ke Xu and
• Yuzhe Liu

Beilstein J. Nanotechnol. 2022, 13, 1256–1267, doi:10.3762/bjnano.13.104

• bias-assisted electroreduced gold ions in mesoporous silica films on a conductive substrate. It works in the air with high relative humidity (RH) at room temperature and leads to the growth of fine wires attached to the tip with tens to hundreds of nanometers. Under room temperature conditions with

Application of nanoarchitectonics in moist-electric generation

• Jia-Cheng Feng and
• Hong Xia

Beilstein J. Nanotechnol. 2022, 13, 1185–1200, doi:10.3762/bjnano.13.99

• parameters such as humidity, airflow rate, airflow direction, and number of oxygen-containing groups on the output power of nanostructures [80]. Figure 7c shows that the higher the humidity, the greater the output voltage. When the relative humidity of the device increases, the interaction area between the

Interaction between honeybee mandibles and propolis

• Leonie Saccardi,
• Franz Brümmer,
• Jonas Schiebl,
• Oliver Schwarz,
• Alexander Kovalev and
• Stanislav Gorb

Beilstein J. Nanotechnol. 2022, 13, 958–974, doi:10.3762/bjnano.13.84

• (standard microscopy slides (soda lime glass); Carl Roth GmbH & Co. KG, Karlsruhe, Germany) with the same propolis sample. Experiments were carried out at room temperature (24.00 ± 0.53 °C) and a relative humidity of 36.80% ± 9.0%. For every condition, 50–150 single tests were performed on different spots

Ethosomal (−)-epigallocatechin-3-gallate as a novel approach to enhance antioxidant, anti-collagenase and anti-elastase effects

• Çiğdem Yücel,
• Gökçe Şeker Karatoprak,
• Sena Yalçıntaş and
• Tuğba Eren Böncü

Beilstein J. Nanotechnol. 2022, 13, 491–502, doi:10.3762/bjnano.13.41

• effectiveness results obtained in our study, and this is also compatible with the literature. Stability studies Stability studies were performed at different conditions (4 and 25 °C + 60% relative humidity) for ETHs and ETHGs. PS and ZP values were periodically monitored once a month. The EGCG contents of ETHs

• significant decrease in the drug content of the formulations was observed after three months at 4 °C (p > 0.005). In formulations stored at 25 °C, ± 60% relative humidity, both the amount of EGCG and the shelf life decreased with increasing temperature. Shelf lives of suspended ETHs were calculated as 25 days

• at 4 °C (correlation coefficient, r2 = 0.994) and 22 days at 25 °C (r2 = 0.991), respectively. In ETHGs, it was determined that the gel was transparent at 4 °C, and transparent/yellowish at 25 °C, ± 60% relative humidity. The gel system showed good physicochemical properties at both 4 and 25 °C. The

The role of sulfonate groups and hydrogen bonding in the proton conductivity of two coordination networks

• Ali Javed,
• Felix Steinke,
• Stephan Wöhlbrandt,
• Hana Bunzen,
• Norbert Stock and
• Michael Tiemann

Beilstein J. Nanotechnol. 2022, 13, 437–443, doi:10.3762/bjnano.13.36

• materials such as Nafion. Despite its high proton conductivity of ca. 0.1 S·cm−1 at 80 °C and 98% relative humidity (r.h.), Nafion exhibits some shortcomings, including high cost, sophisticated manufacturing processes, and stringent operating conditions [8]. Therefore, a variety of new functional network

• within 12 h. The compounds were collected via filtration, dried under ambient conditions, and identified by powder X-ray diffraction. [Mg(H2O)2(H3L)]·H2O was obtained as colorless needles (240 mg, 36%) and [Pb2(HL)]·H2O as small colorless crystals (152 mg, 38%). PXRD data at a relative humidity of 90

• % were recorded on a Panalytical Empyrean diffractometer equipped with a CHC plus+ chamber in a transmittance Bragg–Brentano geometry employing Cu radiation. The patterns were recorded at a temperature of 25 °C before and after the activation of sample at 80 °C and 10% relative humidity. For impedance

A non-enzymatic electrochemical hydrogen peroxide sensor based on copper oxide nanostructures

• Irena Mihailova,
• Vjaceslavs Gerbreders,
• Marina Krasovska,
• Eriks Sledevskis,
• Valdis Mizers,
• Andrejs Bulanovs and
• Andrejs Ogurcovs

Beilstein J. Nanotechnol. 2022, 13, 424–436, doi:10.3762/bjnano.13.35

• environmental conditions (20 °C, 40% relative humidity) for one week, the signal level remained at 95% of the initial value. For samples stored under environmental conditions for a month, the signal level remained at 90% of the initial value. The influence of the environment and degree of sample degradation can

A chemiresistive sensor array based on polyaniline nanocomposites and machine learning classification

• Jiri Kroutil,
• Alexandr Laposa,
• Ali Ahmad,
• Jan Voves,
• Vojtech Povolny,
• Ladislav Klimsa,
• Marina Davydova and
• Miroslav Husak

Beilstein J. Nanotechnol. 2022, 13, 411–423, doi:10.3762/bjnano.13.34

• arrays were exposed to various relative humidity levels ranging from 20% to 80% (Figure 10). The obtained results show a decreasing sensor response with increasing RH% value. This change in response toward relative humidity is due to the adsorption of water molecules and an increase of charge

A comprehensive review on electrospun nanohybrid membranes for wastewater treatment

• Senuri Kumarage,
• Imalka Munaweera and
• Nilwala Kottegoda

Beilstein J. Nanotechnol. 2022, 13, 137–159, doi:10.3762/bjnano.13.10

• collect the ejected polymer fibers. These are set up inside an enclosure in which ambient parameters, such as relative humidity, airflow, and temperature can be controlled. A high voltage is supplied to the metal spinneret. The polymer solution, pumped to the spinneret through the syringe, will be charged

• environmental conditions, primarily the relative humidity and the temperature. The effects of these parameters are interconnected, which makes it difficult to separate the impact of each parameter on the fiber properties. And the effect of each parameter can vary for different polymers such that dissimilar

• . 3.3 Ambient parameters 3.3.1 Relative humidity. It has been reported that relative humidity has a direct impact on morphology and diameter of the fibers, which in turn affect the mechanical properties of the fibers. Pelipenko et al. investigated the impact of relative humidity on fiber morphology and

Polarity in cuticular ridge development and insect attachment on leaf surfaces of Schismatoglottis calyptrata (Araceae)

• Venkata A. Surapaneni,
• Tobias Aust,
• Thomas Speck and
• Marc Thielen

Beilstein J. Nanotechnol. 2021, 12, 1326–1338, doi:10.3762/bjnano.12.98

• during mature leaf stages. Experimental Leaf collection and ontogenetic stages S. calyptrata plants (potted plant <0.5 m height) were cultivated in the glass houses of the Botanic Garden of the University of Freiburg, Germany. The average temperature and average relative humidity in the glass houses were

Morphology-driven gas sensing by fabricated fractals: A review

• Vishal Kamathe and
• Rupali Nagar

Beilstein J. Nanotechnol. 2021, 12, 1187–1208, doi:10.3762/bjnano.12.88

Paper-based triboelectric nanogenerators and their applications: a review

• Jing Han,
• Nuo Xu,
• Yuchen Liang,
• Mei Ding,
• Junyi Zhai,
• Qijun Sun and
• Zhong Lin Wang

Beilstein J. Nanotechnol. 2021, 12, 151–171, doi:10.3762/bjnano.12.12

• stable thin layer, which could be used as a free-standing friction layer (also electrode) in TENGs. In addition to the applications in energy harvesting, GO can also be readily used to monitor the relative humidity (RH) because of the strong interactions between water molecules and oxygen functional

Triboelectric nanogenerator based on Teflon/vitamin B1 powder for self-powered humidity sensing

• Liangyi Zhang,
• Huan Li,
• Yiyuan Xie,
• Jing Guo and
• Zhiyuan Zhu

Beilstein J. Nanotechnol. 2020, 11, 1394–1401, doi:10.3762/bjnano.11.123

• measured open-circuit voltage was approximately 340 V. The TVB-TENG can be applied as a humidity sensor and exhibits a linear and reversible response to the relative humidity of the environment. Moreover, the change in relative humidity is also indicated by the change in luminosity of a set of light

• requirements. As an extension of previous work [45], the self-powered TVB-TENG designed in this study can be used to measure the relative humidity and exhibits good linearity and reversibility. In addition, the materials used in the manufacturing of the TENGs are nontoxic and degradable. Furthermore, light

• -emitting diodes (LEDs) are integrated with the humidity sensor and the luminosity is an indicator of the relative humidity (RH) from the surrounding environment. Experimental The conductive copper foil tape is used as the electrode, while the paper (manufacturer: Miao Ben) at the bottom serves as a

Structure and electrochemical performance of electrospun-ordered porous carbon/graphene composite nanofibers

• Yi Wang,
• Yanhua Song,
• Chengwei Ye and
• Lan Xu

Beilstein J. Nanotechnol. 2020, 11, 1280–1290, doi:10.3762/bjnano.11.112

• -voltage power supply, whereas the parallel electrodes were connected to the cathode [24]. According to our previous work [33], electrospun-ordered PAN/graphene CNFs (PGCNFs) were prepared by MPEM at room temperature and 50 ± 5% relative humidity. The spinning solution was placed in the syringe and

Stochastic excitation for high-resolution atomic force acoustic microscopy imaging: a system theory approach

• Edgar Cruz Valeriano,
• José Juan Gervacio Arciniega,
• Christian Iván Enriquez Flores,
• Susana Meraz Dávila,
• Joel Moreno Palmerin,
• Martín Adelaido Hernández Landaverde,
• Yuri Lizbeth Chipatecua Godoy,
• Aime Margarita Gutiérrez Peralta,
• Rafael Ramírez Bon and
• José Martín Yañez Limón

Beilstein J. Nanotechnol. 2020, 11, 703–716, doi:10.3762/bjnano.11.58

• spring constant of 0.2 N/m were used. All experiments were carried out in dry air at a temperature of 21.0 ± 0.1 °C and a relative humidity of (2 ± 1)%. It is very important to define the appropriate signal to perturb the system. This allows for gathering sufficient information about the system dynamics

Preparation, characterization and photocatalytic performance of heterostructured CuO–ZnO-loaded composite nanofiber membranes

• Wei Fang,
• Liang Yu and
• Lan Xu

Beilstein J. Nanotechnol. 2020, 11, 631–650, doi:10.3762/bjnano.11.50

• needle tip to collector were, respectively, maintained at 20 kV and 18 cm. The electrospinning experiments were carried out at room temperature (25 ± 2 °C) and a relative humidity of (55 ± 5%), and the electrospun Cu(Ac)2/Zn(Ac)2/PVDF/PAN CNFMs were collected and carefully peeled off from the aluminium

Recent progress in perovskite solar cells: the perovskite layer

• Xianfeng Dai,
• Ke Xu and
• Fanan Wei

Beilstein J. Nanotechnol. 2020, 11, 51–60, doi:10.3762/bjnano.11.5

• only 2.2% after 1,512 hours without encapsulation when exposed to ambient conditions with 55% relative humidity (RH). Very recently, Stoumpos et al. [60] reported a novel 2D perovskite that adopted the Dion–Jacobson (DJ) structure, which is considered to be more stable and more efficient than its RP

Evaluation of click chemistry microarrays for immunosensing of alpha-fetoprotein (AFP)

• Seyed Mohammad Mahdi Dadfar,
• Sylwia Sekula-Neuner,
• Vanessa Trouillet,
• Hui-Yu Liu,
• Ravi Kumar,
• Annie K. Powell and
• Michael Hirtz

Beilstein J. Nanotechnol. 2019, 10, 2505–2515, doi:10.3762/bjnano.10.241

• –streptavidin–biotin sandwich technique previously prepared via different click reaction methods (samples of routes 1–6). b–g) Fluorescence microscope images of the micropatterns obtained at the optimum incubation time and temperature. All microarrays were spotted at a relative humidity of 20%. The ink

• spots with fluorescently labeled AFP. a) Fluorescence intensity of the microarrays at different concentrations of fluorescently labeled AFP (12.5, 25, 50, 100, 200, 400 and 800 μg/mL). b) Fluorescence microscope images of the micropatterns. All microarrays were spotted at a relative humidity of 20%. The

• Nanosciences) [45][46]. Prior to use, the cantilevers were activated by oxygen plasma (10 sccm O2, 0.2 mbar, 100 W, 2 min) and used immediately. The pen reservoir was filled with 0.2 μL of ink solution. For all patterns, a probe dwell time of 0.1 s was applied. Spotting was performed at an optimized relative

Self-assembly of a terbium(III) 1D coordination polymer on mica

• Quentin Evrard,
• Giuseppe Cucinotta,
• Felix Houard,
• Guillaume Calvez,
• Yan Suffren,
• Carole Daiguebonne,
• Olivier Guillou,
• Andrea Caneschi,
• Matteo Mannini and
• Kevin Bernot

Beilstein J. Nanotechnol. 2019, 10, 2440–2448, doi:10.3762/bjnano.10.234

• deposition (Figure 1) was carried out at room temperature by drop casting of a 0.35 mM cyclohexane solution of [Tb(hfac)3·2H2O]n onto the mica surface. Key parameters were the 24-hour aging of the samples at room temperature and the relative humidity of 90%. AFM was used to study the deposited material

• , the presence of these disordered areas could be minimized, thus optimizing the overall quality of the deposit. We stress here, that the moisture conditions are crucial for the development of ordered features on the mica surface. Indeed, as soon as drier conditions (ambient relative humidity or dry

• water condensation [39]. Indeed, it has been demonstrated that epitaxial adsorption of water on the hexagonal lattice of mica [40] is observed above 45% of relative humidity [41][42]. These findings were confirmed by theoretical simulations [43]. Accordingly, this is a favorable thermodynamic

Semitransparent Sb₂S₃ thin film solar cells by ultrasonic spray pyrolysis for use in solar windows

• Jako S. Eensalu,
• Atanas Katerski,
• Erki Kärber,
• Lothar Weinhardt,
• Monika Blum,
• Clemens Heske,
• Wanli Yang,
• Ilona Oja Acik and
• Malle Krunks

Beilstein J. Nanotechnol. 2019, 10, 2396–2409, doi:10.3762/bjnano.10.230

• at rest in VOC condition for 230 days at room temperature (RT), relative humidity (RH) <30%, and exposed to both indoor light and daylight incident through the laboratory windows (Figure 6). In the 7.1 mm2 cell, over 230 days, VOC increased slightly, whereas JSC was halved, FF decreased slightly due