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

Metal-organic framework-based nanomaterials as opto-electrochemical sensors for the detection of antibiotics and hormones: A review

• Akeem Adeyemi Oladipo,
• Saba Derakhshan Oskouei and
• Mustafa Gazi

Beilstein J. Nanotechnol. 2023, 14, 631–673, doi:10.3762/bjnano.14.52

• antibiotics and hormones in the environment and food samples are concerning and pose a threat. Opto-electrochemical sensors have received attention due to their low cost, portability, sensitivity, analytical performance, and ease of deployment in the field as compared to conventional expensive technologies

• , high-performance MOFs as commercially viable next-generation opto-electrochemical sensor materials for the detection and monitoring of diverse analytes are discussed. Keywords: antibiotics sensing; endocrinal disorders; fluorescent sensor; hormones sensors; luminescent sensor; MOF nanohybrids

• spectrometry (LC–MS), high-performance liquid chromatography (HPLC), and gas chromatography coupled with mass spectrometry (GC–MS) have demonstrated greater selectivity and lower variability when compared to immunoassays for the measurement of antibiotics and steroid hormones in various complex samples [22][23

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

• . Photocatalytic performance of the nanopowders These experiments have been conducted in environments with low oxygen concentration. Ethanol vapors play a double role here, that is, they generate hydrogen by photodehydrogenation and also undergo oxidation to carbon dioxide and water under the action of simulated

• performance of the tested titania nanoparticles greatly differs. The TO-850-b sample exhibits the highest activity for H2 photogeneration, reaching 5 µmol H2 after 3 h of reaction. The entire sequence of TO-250-b, TO-450-b, and TO-650-b catalysts proves to have a higher activity for H2 generation than TO-250

Suspension feeding in Copepoda (Crustacea) – a numerical model of setae acting in concert

• Alexander E. Filippov,
• Wencke Krings and
• Stanislav N. Gorb

Beilstein J. Nanotechnol. 2023, 14, 603–615, doi:10.3762/bjnano.14.50

• a basis to unravel the interplay between the feeding structures of suspension feeders, the preferred food, and the gathering performance. Additionally, it could open new avenues in the development of new filtration technologies (e.g., mucus-like filter media or bioinspired membranes) that use

• . Results and Discussion Numerical simulations In this study, we restricted ourselves to a few biologically important questions: Is there a difference in feeding performance between a system possessing only short setae near the mouth opening and a system with both types of setae, long and short ones? Which

Transferability of interatomic potentials for silicene

• Marcin Maździarz

Beilstein J. Nanotechnol. 2023, 14, 574–585, doi:10.3762/bjnano.14.48

• -relaxed with the conjugate gradient (CG) algorithm and, then, the elastic constants, Cij, were calculated for them using the stress–strain method with the maximum strain magnitude set to 10−6 [30][31]. In the z direction, a vacuum was set to 20 Å. To measure the performance of the analyzed interatomic

• dampen the out-of-plane vibration mode, and flat silicene may be produced [3]. Hence, it was decided to include also this phase in the molecular calculations. Performance of interatomic potentials Computations were carried out using molecular statics and the fourteen interatomic potentials for silicon

• , ReaxFF and MEAM2011, give the best quantitative performance measured by the total mean absolute percentage error (MAPE), see Table 6. Regarding the cost of calculations in terms of relative performance measured as normalized timesteps per second in molecular dynamics (MD) simulations, the EDIP and

ZnO-decorated SiC@C hybrids with strong electromagnetic absorption

• Liqun Duan,
• Zhiqian Yang,
• Yilu Xia,
• Xiaoqing Dai,
• Jian’an Wu and
• Minqian Sun

Beilstein J. Nanotechnol. 2023, 14, 565–573, doi:10.3762/bjnano.14.47

• is a good strategy to grow ZnO nanocrystals on the surface of SiC nanowires. The final hybrids (SiC@ZnO) showed enhanced performance, with a higher value of effective absorption bandwidth (EAB = 6.6 GHz) and lower RLmin (−42.11 dB) [16]. Growing ZnO nanocrystals on carbon materials (e.g., MWCNTs or

• graphene) may be easier because of the abundance of oxygen functional groups (e.g., carboxyl or hydroxy groups) on the carbon surface [26][31][32], in comparison to pure SiC. The introduction of carbon may help to further adjust the electromagnetic parameters and performance of SiC@ZnO nanocomposites

• and −58.1 dB, while their EAB values are 6.48 GHz (11.48–17.96 GHz) and 7.04 GHz (10.96–18.00 GHz), respectively. However, the filler loads should be increased to higher levels of 35–50 wt %. In general, SCZ1 exhibits the best performance among the samples. Its highest values of RLmin and EAB reach

SERS performance of GaN/Ag substrates fabricated by Ag coating of GaN platforms

• Magdalena A. Zając,
• Bogusław Budner,
• Malwina Liszewska,
• Bartosz Bartosewicz,
• Łukasz Gutowski,
• Jan L. Weyher and
• Bartłomiej J. Jankiewicz

Beilstein J. Nanotechnol. 2023, 14, 552–564, doi:10.3762/bjnano.14.46

• morphology of fabricated Ag layers examined by scanning electron microscopy (SEM). Then, we present the results of their optical properties determined using UV–vis spectroscopy. Finally, we compare the SERS performance of the GaN/Ag substrates toward 4-mercaptobenzoic acid (pMBA) molecules adsorbed on them

• absorption level for samples in a given series, it can be seen that an increase in the amount of deposited metal causes a decrease in light absorption, which is related to a decrease in surface roughness and the filling of the nanoporous GaN structure with silver. SERS performance of fabricated of GaN/Ag

Observation of multiple bulk bound states in the continuum modes in a photonic crystal cavity

• Rui Chen,
• Yi Zheng,
• Xingyu Huang,
• Qiaoling Lin,
• Chaochao Ye,
• Meng Xiong,
• Martijn Wubs,
• Yungui Ma,
• Minhao Pu and
• Sanshui Xiao

Beilstein J. Nanotechnol. 2023, 14, 544–551, doi:10.3762/bjnano.14.45

• and the computation capacity for simulation, the sizes of the cavity in simulation and experiment are different. However, the dependence of the illumination position and mode excitation efficiency are verified. A computer with higher performance to simulate a larger cavity or improving the efficiency

Nanoarchitectonics to entrap living cells in silica-based systems: encapsulations with yolk–shell and sepiolite nanomaterials

• Celia Martín-Morales,
• Jorge Fernández-Méndez,
• Pilar Aranda and
• Eduardo Ruiz-Hitzky

Beilstein J. Nanotechnol. 2023, 14, 522–534, doi:10.3762/bjnano.14.43

• previously encapsulated cells into yolk–shell structures feature a more continuous silica matrix with deeper cavities in which single cells are entrapped. Viability studies Viability studies have been carried out to analyse the suitability of the encapsulation by studying the performance of each

• has been studied, the poor performance in terms of desired features for a biophotocatalytic application (poor transparency and reduced long-term biological or physical stability) has led us to discard them from a more intensive study. Ethanol production of encapsulated yeast The biological production

• results only as a tentative experiment to evaluate the biocatalytic performance. However, these preliminary findings combined with the observed CO2 release from the cultures and the detection of alcohol allowed us to confirm that the encapsulated yeast produced ethanol likely faster and in higher amounts

On the use of Raman spectroscopy to characterize mass-produced graphene nanoplatelets

• Keith R. Paton,
• Konstantinos Despotelis,
• Naresh Kumar,
• Piers Turner and
• Andrew J. Pollard

Beilstein J. Nanotechnol. 2023, 14, 509–521, doi:10.3762/bjnano.14.42

• need to maximise the amount of GNP material extracted, while to maintain product quality, it is important to prevent sediment accidentally ending up in the extracted GNP fraction. To allow for a commercially viable, industrial scale-up, it is important to understand the performance of this separation

A mid-infrared focusing grating coupler with a single circular arc element based on germanium on silicon

• Xiaojun Zhu,
• Shuai Li,
• Ang Sun,
• Yongquan Pan,
• Wen Liu,
• Yue Wu,
• Guoan Zhang and
• Yuechun Shi

Beilstein J. Nanotechnol. 2023, 14, 478–484, doi:10.3762/bjnano.14.38

• sensors is of great significance. In 2015, Bai et al. reported a flexible healable transparent chemical gas sensing device that exhibited robust flexibility, good transparency, and reliable water-enabled healability of the gas sensing performance at room temperature [15]. Wang proposed a flexible

• resonance platform will further contribute to the field of biomedical sensors. We also studied the sensing performance of our proposed MIR FGC when it worked as a sensor rather than a coupler, as shown in Figure 6. When RI increases from 1 to 1.04, the peak of coupling efficiency shows a redshift from

• efficiency of the single CAE was equivalent to that of multiple CAEs, such as in focusing gratings, which could significantly reduce the production cost and complexity while keeping high coupling efficiency. In addition, the RI sensing performance of the proposed MIR grating coupler was also simulated when

Mixed oxides with corundum-type structure obtained from recycling can seals as paint pigments: color stability

• Dienifer F. L. Horsth,
• Julia de O. Primo,
• Nayara Balaba,
• Fauze J. Anaissi and
• Carla Bittencourt

Beilstein J. Nanotechnol. 2023, 14, 467–477, doi:10.3762/bjnano.14.37

• -performance detector, with a power of 300 W. A scanning electron microscope Hitachi SU8020 SEM (Tokyo, Japan) was used to obtain morphology information. The oxidation state and composition of the chemical elements at the surface were evaluated by X-ray photoelectron spectroscopy (XPS) (Versaprobe PHI 5000

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

• PDA as a PTM to improve the chemical stability and light absorption ability [49]. The Ni1Co3@PDA was dispersed onto the surface of a round commercial sponge by drop casting. The photothermal performance of the Ni1Co3@PDA deposited on the sponge was then evaluated using a kerosene lamp-like setup

• hydrophilic/hydrophobic properties. Furthermore, conjugated hybrid materials exhibit excellent performance because of the synergistic effects of different components of the hybrid materials. The overall structural design concept of the absorbers was also described. The Janus structure reduces the heat loss to

• possible to further improve the photothermal conversion efficiency of conjugated molecules by systematically studying structure–property relationships. Optimized structures will be value-added high-performance photothermal materials. Also, they need to be hybridized with mass-produced active matrix

Molecular nanoarchitectonics: unification of nanotechnology and molecular/materials science

• Katsuhiko Ariga

Beilstein J. Nanotechnol. 2023, 14, 434–453, doi:10.3762/bjnano.14.35

• and to create high-performance materials in a rational way. The linkage of nanotechnology and fundamental science such as organic synthesis can be the cornerstone of materials nanoarchitectonics as a whole. This approach to molecular nanoarchitectonics based on high-resolution observation is a field

Evaluation of electrosynthesized reduced graphene oxide–Ni/Fe/Co-based (oxy)hydroxide catalysts towards the oxygen evolution reaction

• Karolina Cysewska,
• Marcin Łapiński,
• Marcin Zając,
• Jakub Karczewski,
• Piotr Jasiński and
• Sebastian Molin

Beilstein J. Nanotechnol. 2023, 14, 420–433, doi:10.3762/bjnano.14.34

• graphene material with Ni-, Fe- and/or Co-based oxides/hydroxides with high chemical reactivity provides both an effective electron pathway through the catalyst [20] and high specific surface area [21], which is desirable for the OER process [13]. The overall electrocatalytic performance of the hybrid

• electrode can also be improved by choosing a conductive and/or high surface area substrate, such as porous nickel foam [22][23]. In the literature, some research has been performed to evaluate the OER electrocatalytic performance of hybrid materials of Ni-, Fe- and/or Co-based oxides/(oxy)hydroxides and Gr

• performance was also obtained for electrodeposited NiFe LDH combined with GO on nickel foam (GO-NiFe-LDH) [12] and NiFe LDH combined with reduced graphene oxide (rGO) on nickel foam (NiFe-LDH/RGO) [21]. The OER η was determined to be 119 mV and 150 mV determined at 10 mA·cm−2 in 1 M KOH for GO-NiFe-LDH and

Plasmonic nanotechnology for photothermal applications – an evaluation

• A. R. Indhu,
• L. Keerthana and
• Gnanaprakash Dharmalingam

Beilstein J. Nanotechnol. 2023, 14, 380–419, doi:10.3762/bjnano.14.33

• theory, Gans theory, generic simulations on common plasmonic material morphologies, and the evaluation processes of PT performance. Further, a variety of nanomaterials and material classes that have potential for PPT conversion are elucidated, such as plasmonic metals, bimetals, and metal–metal oxide

• on the plasmonic performance of different nanomaterials follows and is illustrated in Figure 3. 2.1.2 Tunability of the plasmon oscillation frequency – changes to the free carrier density: Free carrier densities of electrons are in the range of 1022 to 1023 cm−3 for plasmonic metals such as Au, Ag

• critical for predicting and understanding PT performance, for which a discussion on the same is presented next. 2.3 Relaxation mechanisms of plasmons – the conversion of photons to heat When photons strike a plasmonic nanoparticle, plasmon excitations result in changes to the electron cloud thermal

The steep road to nonviral nanomedicines: Frequent challenges and culprits in designing nanoparticles for gene therapy

• Yao Yao,
• Yeongun Ko,
• Grant Grasman,
• Jeffery E. Raymond and
• Joerg Lahann

Beilstein J. Nanotechnol. 2023, 14, 351–361, doi:10.3762/bjnano.14.30

• measurement. For NTA, ASTM 2834 provides workflows for planning NP experiments. Through the study of nanoscale extracellular vesicles, Bachurski et al. [68] provide some additional insights comparing the performance of different NTA systems to cryo-TEM and single-particle interferometric reflectance imaging

Polymer nanoparticles from low-energy nanoemulsions for biomedical applications

• Santiago Grijalvo and
• Carlos Rodriguez-Abreu

Beilstein J. Nanotechnol. 2023, 14, 339–350, doi:10.3762/bjnano.14.29

• , nanocarriers need to be engineered to add functionalities, both in their cores and at their surfaces. This includes therapeutic drugs and genes, targeting moieties, performance enhancers (e.g., for barrier penetration and to avoid opsonization), and imaging agents [2][3]. Core and matrix of the nanoparticles

Bismuth-based nanostructured photocatalysts for the remediation of antibiotics and organic dyes

• Akeem Adeyemi Oladipo and
• Faisal Suleiman Mustafa

Beilstein J. Nanotechnol. 2023, 14, 291–321, doi:10.3762/bjnano.14.26

• , Bi2O3, BiFeO3, Bi2WO6, Bi2Mo3O12, Bi2MoO6, and BiOI [24][25][39][40][41][42][43][44][45]) using a variety of techniques to tailor their size, morphology, and optoelectrical properties to improve their photocatalytic performance and to better understand the factors influencing their performance

• exposure. Since the oxidation rate is still up to 96.3% after four cycles, the photocatalyst showed great performance and stability in the photocatalytic oxidation of the dye. This review provides an overview of the recent nanostructured photocatalytic materials based on bismuth that are employed in the

• interest over the last eight years, as shown in Table 3. Although Bi2WO6, BiFeO3, and other nanostructured photocatalysts [118][119][120][121][122][123] based on bismuth have been widely used in wastewater remediation and have demonstrated remarkable performance, their industrial/field application still

Recent progress in cancer cell membrane-based nanoparticles for biomedical applications

• Qixiong Lin,
• Yueyou Peng,
• Yanyan Wen,
• Xiaoqiong Li,
• Donglian Du,
• Weibin Dai,
• Wei Tian and
• Yanfeng Meng

Beilstein J. Nanotechnol. 2023, 14, 262–279, doi:10.3762/bjnano.14.24

• , cancer cell membranes also show excellent performance in nontumor diseases such as immune system diseases [25] and cardiovascular diseases [26] because of their rich surface functions that yield immunomodulation [22] and biological barrier penetration [27]. Here, we review recent advances and original

• oxidation, which leads to a decrease in heating efficiency [100]. In addition, magnetic NPs are usually recognized and cleared from the body, which prevents them from reaching their target [101]. Biomimetic cancer cell membrane technology can enhance the performance of magnetic iron oxide NPs (e.g., prevent

Nanotechnology – a robust tool for fighting the challenges of drug resistance in non-small cell lung cancer

• Filip Gorachinov,
• Fatima Mraiche,
• Diala Alhaj Moustafa,
• Ola Hishari,
• Yomna Ismail,
• Jensa Joseph,
• Maja Simonoska Crcarevska,
• Marija Glavas Dodov,
• Nikola Geskovski and
• Katerina Goracinova

Beilstein J. Nanotechnol. 2023, 14, 240–261, doi:10.3762/bjnano.14.23

• also confirmed in an in vivo lung cancer mouse model [133]. Models for drug targeting via nanocarriers and ideas for the resolution of the main drawbacks regarding their performance are numerous. Only a choice of approaches was discussed in this section giving rational solutions for improving the

Cyclodextrins as eminent constituents in nanoarchitectonics for drug delivery systems

• Makoto Komiyama

Beilstein J. Nanotechnol. 2023, 14, 218–232, doi:10.3762/bjnano.14.21

• promptly released, when necessary, by disassembling the nanoarchitectures completely (or partially) at desired timing. Recent progresses in this research field have been remarkable, resulting in notable improvements in clinical performance. In order to construct sophisticated nanoarchitectures

A novel approach to pulsed laser deposition of platinum catalyst on carbon particles for use in polymer electrolyte membrane fuel cells

• Bogusław Budner,
• Wojciech Tokarz,
• Sławomir Dyjak,
• Andrzej Czerwiński,
• Bartosz Bartosewicz and
• Bartłomiej Jankiewicz

Beilstein J. Nanotechnol. 2023, 14, 190–204, doi:10.3762/bjnano.14.19

• cost of PEMFCs depend on the materials used to construct their major components, which are anode, cathode, and polymer electrolyte membranes [3][6]. Therefore, supplying good-performance materials with controlled nanostructures to fuel cell technology is a crucial issue [7]. One solution to this

• dedicated to reducing the Pt loading at the cathode without performance loss of PEMFCs or to finding an alternative catalyst material [4][6][21]. The reduction of Pt loading on various carbon supports can be achieved by combining Pt with other metals [21] as well as by modifications of the various chemical

• supports in the form of nano- and microparticles. Herein, we report on the deposition of platinum on carbon particles using PLD to fabricate cost-efficient catalysts for PEMFCs with good performance. The research aimed to develop an effective physical method of PtNP deposition on carbon supports directly

A distributed active patch antenna model of a Josephson oscillator

• Vladimir M. Krasnov

Beilstein J. Nanotechnol. 2023, 14, 151–164, doi:10.3762/bjnano.14.16

• , developed by Koshelets and co-workers show a remarkable performance in terms of tunability and linewidth [6][9][12]. However, they emit very little power into free space [11][13][15][16]. The low radiation power efficiency, that is, the ratio of radiated to dissipated power, is commonly attributed to a

• attributed to “impedance mismatch”. However, so far, there was no clear understanding of what mismatches with what. A long-living misconception is that the mismatch is between the TL and free-space impedances, ZTL ≪ Z0 [16]. However, this is not the source of the poor performance. On the contrary, it is

• beneficial to have a small TL impedance, connecting two radiating slots in a patch antenna [36]. The small ZTL does not affect antenna performance and can be neglected. The real source of the problem becomes apparent from Equation 41. It is associated with the more than five orders of magnitude mismatch

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

• Dong Wei Chengwei Ye Adnan Ahmed Lan Xu College of Textile and Engineering, Soochow University, Suzhou 215123, China 10.3762/bjnano.14.15 Abstract With the increasing application of electrospun nanofibers, the batch preparation of high-performance functional nanofibers containing nanoparticles

• has become a research hotspot. As the distribution uniformity of nanoparticles in functional nanofibers has a great impact on their performance, an electrospinning device with multiple air inlets, which has a copper porous spinneret, is proposed to obtain functional nanofibers with higher yield and

• promising materials, such as conductive fibers [6], phase change fibers [7], antistatic fibers [8], and antibacterial fibers [9]. Therefore, the batch preparation of high-performance functional nanofibers by electrospinning has become a current research hotpot [10]. The properties of spinning solutions used