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

• a reduction to 5% in greenhouse gas emissions compared to the direct synthesis, reducing the environmental impact. Besides, one ton of recycled aluminium saves up to eight metric tons of bauxite [3][4]. The amount of recycled aluminium packaging depends on individual national recycling policies

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

• reduction process of the already deposited GO. Afterwards, the current density increased due to the film formation, and then it gradually stabilized over time. A different chronoamperometric trend can be observed in the case of the electrodeposition of GO on the surface of nickel foam (Figure 1a inset). In

• reduction of the GO. A reduced form of GO combined with NiFe was also obtained by others after one-step electrodeposition by cyclic voltammetry [12]. Electrochemical studies of the catalysts towards the OER The electrochemical performance of the catalysts towards the OER was studied in an aqueous solution

• of the test was observed for each of the studied catalysts. This was due to the reduction of the catalysts’ active surface area through the physical absorption of the generated oxygen bubbles on the electrode surface, which was also observed by others [40]. The recorded potential deviated in a range

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

• inevitable reduction in the dependency on fossil fuels, global energy demand looks to solar power to be a significant provider for its needs, with various solar power conversion technologies in place and rapidly progressing [1]. Electromagnetic radiation, when interacting with a material can transfer energy

• cause little damage to adjacent healthy tissues due to extremely localized heating [3]. Generally, the reduction of material dimensions to the nanoscale, such as in graphene, carbon nanotubes (CNT) and polymers, leads to an enhancement of the PT effect due to factors such as improved thermal

• exciton radius. In such cases, the confined electron wave functions have discrete energies and undergo considerably higher scattering with the surface because of the “shrunken” wave functions, contributing significantly to the reduction in absorption due to significantly increased linewidth broadening [68

New trends in nanobiotechnology

• Pau-Loke Show,
• Kit Wayne Chew,
• Wee-Jun Ong,
• Sunita Varjani and
• Joon Ching Juan

Beilstein J. Nanotechnol. 2023, 14, 377–379, doi:10.3762/bjnano.14.32

• -assembly; wet chemical reduction; The widespread use of nanotechnology has reached almost every sector in our daily lives and amazed the world by offering various potential applications in these sectors. The uprising wave of nanotechnology and its application are now prominent in the fields of chemistry

• reduction methods which use surfactants, and explores the in vitro and in vivo cytotoxicity of the synthesized anisotropic nanoparticles. A portion of the work looks into the possible integration of nanotechnology in deep eutectic solvent extractions and also the use of carrageenan as a safe stabilizing

Quercetin- and caffeic acid-functionalized chitosan-capped colloidal silver nanoparticles: one-pot synthesis, characterization, and anticancer and antibacterial activities

• Akif Hakan Kurt,
• Elif Berna Olutas,
• Fatma Avcioglu,
• Hamza Karakuş,
• Mehmet Ali Sungur,
• Cansu Kara Oztabag and
• Muhammet Yıldırım

Beilstein J. Nanotechnol. 2023, 14, 362–376, doi:10.3762/bjnano.14.31

• redshift of the SPR peak implies an increase in the size of Ag NPs. In addition, the broadening of the spectrum can be explained by the increasing size and shape distribution arising from excess co-capping agents, which are present in the reaction medium during the reduction of Ag ions. The broadening in

• NPs using XTT assay. As known, XTT and MTT, tetrazolium salts, are used to evaluate cell viability by a colorimetric method based on their reduction to colored formazan compounds by living cells. Actively respiring cells convert water-soluble XTT to a water-soluble, orange-colored formazan product

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

• donor or acceptor on the surface of the photocatalyst may continue to interact. Nothing happens in the first scenario. In the second scenario, an electron or hole interacts with dissolved oxygen or water to produce ROS (e.g., •OH, O2•−). These ROS play a significant role in the photo-oxidation/reduction

• -contaminated water might result in several allergic and respiratory conditions [62][63][64][65]. Additionally, an overabundance of antibiotics in the environment causes structural changes in the ecosystem, disruptions in ecological function, and impacts the processes of sulfate reduction, methanogenesis, and

• sulfadimethoxine considerably slow down plant growth. Additionally, tetracyclines have phytotoxic effects that may result in chromosomal abnormalities and the reduction of plant growth. Although β-lactams are thought to be less harmful, they also have an impact on the plastid division in lower plants [48][67]. The

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

• expected therapeutic benefits. The biomimetic cancer cell membrane technology shows good prospects for individualized treatment. This facilitates the reduction of drug doses and efficient diagnosis and treatment. Although NPs based on cancer cell membranes have been found to be a promising biomimetic

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

• for silencing the expression of resistance-related genes was evidenced by a significant reduction in cell growth and increased rate of apoptosis compared to the cells treated with siRNA only. Furthermore, considering that these cell lines are EGFR-positive TKI-resistant NSCLC cells, a synergistic

• relationships of the LNPs are discovered by building and evaluating different LNP libraries [153]. Studies should also intensify in the area of nanoscale biointerface interactions and their influence on specific targeting and internalization, improved tolerability, and the reduction of immunogenicity and off

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

• administered at present through subcutaneous injection. Moreover, a glutamine–β-CyD conjugate was used to deliver DOX for the treatment of triple-negative breast cancer, which is difficult to cure [99]. By combining β-CyD and poly(2-ethyl-2-oxazoline), DOX was released in response to both the reduction by

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

• commonly used catalyst in PEMFCs is platinum on various carbon support materials, which is used in both the anode and cathode because of its high catalytic activity toward the hydrogen oxidation reaction (HOR) and oxygen reduction reaction (ORR) [6][17][18][19][21][22][23][24][25]. Pt is also characterized

• 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

• system for carbon support mixing during PLD deposition. The highly graphitized carbon particles used as support were synthesized using metallothermic reduction. We additionally investigated the influence of deposition process parameters on the morphology of the fabricated Pt/C catalysts. Structure

Structural, optical, and bioimaging characterization of carbon quantum dots solvothermally synthesized from o-phenylenediamine

• Zoran M. Marković,
• Milica D. Budimir,
• Martin Danko,
• Dušan D. Milivojević,
• Pavel Kubat,
• Danica Z. Zmejkoski,
• Vladimir B. Pavlović,
• Marija M. Mojsin,
• Milena J. Stevanović and
• Biljana M. Todorović Marković

Beilstein J. Nanotechnol. 2023, 14, 165–174, doi:10.3762/bjnano.14.17

• amines such as 2-ethylenediamine, poly(ethyleneamine), or trimethylamine, enhances the affinity of CQDs to biological structures whereas incorporation of nitrogen atoms in the honeycomb structure of CQDs contributes to a reduction of photobleaching [7]. Tepliakov et al. reported that CQDs can be treated

• which MRC5 cells were maintained as monolayer cultures, was replaced with undiluted sample extract (100%), and 50% and 25% sample extracts (prepared by diluting sample extracts with fresh RPMI-1640). After 48 h of treatment with sample extracts, cell proliferation was determined using MTT reduction

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

• to a fraction of Z0. However, this is not possible for the standard FFO geometry as sketched in Figure 1a. Indeed, increasing RQP would require the reduction of junction sizes, which would lead to even faster increase of Rrad. Alternatively, RQP can be increased by decreasing Jc0, but this will not

• a single JJ. However, as follows from the estimation above (see Table 1), raising the junction resistance to the desired Z0 level would require a drastic (100 times) reduction of the junction area. This will also lead to a proportional reduction of Ic0 and the net available power. Therefore, a

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

• the fibers. When the air flow rate was 100 m3/h (Figure 3b), the adhesion between fibers was weakened, resulting in the decrease of average fiber diameter (719.28 ± 108.43 nm) and a reduction of nanoparticle agglomeration in the fibers. When the air flow rate was 50 m3/h (Figure 3c), there was almost

Formation of nanoflowers: Au and Ni silicide cores surrounded by SiO_x branches

• Feitao Li,
• Siyao Wan,
• Dong Wang and
• Peter Schaaf

Beilstein J. Nanotechnol. 2023, 14, 133–140, doi:10.3762/bjnano.14.14

• substrate at higher temperatures in oxygen-deficient environment [3][4]. Another cost-effective nanofabrication method, thin film dewetting, driven by the reduction of the surface energy and the interface energy has also been profusely studied because it provides a straightforward and fast way to produce

Intermodal coupling spectroscopy of mechanical modes in microcantilevers

• Ioan Ignat,
• Bernhard Schuster,
• Jonas Hafner,
• MinHee Kwon,
• Daniel Platz and
• Ulrich Schmid

Beilstein J. Nanotechnol. 2023, 14, 123–132, doi:10.3762/bjnano.14.13

• increases, the linewidth does as well while the amplitude decreases as per Equation 3. We calculate the effective temperature using Equation 5 and we achieve a reduction down to just below 100 K. The results of this evaluation are seen in the inset of Figure 3a. This data set also exhibits a significant

• ) Measurements of the first mode coupled with the second. Increasing the pump amplitude presents both a shift in the frequency and a reduction in effective temperature. Inset: Effective temperature and Q factor as functions of the pump amplitude. (b) Data of the second mode under different pump settings. Mode

Antimicrobial and mechanical properties of functionalized textile by nanoarchitectured photoinduced Ag@polymer coating

• Jessica Plé,
• Marine Dabert,
• Helene Lecoq,
• Sophie Hellé,
• Lydie Ploux and
• Lavinia Balan

Beilstein J. Nanotechnol. 2023, 14, 95–109, doi:10.3762/bjnano.14.11

• ] synthesized AgNPs on cotton fabrics using laser ablation, while Ahmad et al. [31] deposited AgNPs by the dip and dry method based on surface reduction reactions. However, the difference in expansion coefficients of the given metal layer and substrate can lead to surface defects under strain (cracks, loss of

• difficult to implement and tend to cause NP self-aggregation. In situ methods are therefore generally preferred and typically require the polymer film surface to be treated with a metal precursor solution (layer-by-layer [37][38], sol–gel [39]) before undergoing thermal [40] or chemical reduction reactions

• coupling between the in situ chemical reduction of metallic precursors and photopolymerization of acrylic monomers ensures a depth-wise MNP distribution inside the cross-linked network, which prevents possible leaching processes. Based on these results, we investigated the antimicrobial properties (liquid

Frontiers of nanoelectronics: intrinsic Josephson effect and prospects of superconducting spintronics

• Anatolie S. Sidorenko,
• Horst Hahn and
• Vladimir Krasnov

Beilstein J. Nanotechnol. 2023, 14, 79–82, doi:10.3762/bjnano.14.9

• , which is now showing slowing-down and failure signs [2]. It is evident that a radical reduction in energy consumption through efficiency improvement is needed and has become one of the main goals in the development of new supercomputers. For example, the powerful modern supercomputer TIANHE-2, a massive

• drastically lower energy dissipation. А logical solution and the most promising candidate for radical reduction in energy consumption is the superconducting digital technology (SDT) based on Josephson junctions. The intrinsic Josephson effect, which was first reported by Reinhold Kleiner, Paul Müller, and co

• /ferromagnetic absorber with a temperature reduction of the electrons in the refrigerator junctions down to 25 mK in the idle regime without an optical power load [22]. - Implementation of Josephson junctions for the design of quantum computers by analyzing the dynamics of a single-junction superconducting

Solvent-induced assembly of mono- and divalent silica nanoparticles

• Bin Liu,
• Etienne Duguet and
• Serge Ravaine

Beilstein J. Nanotechnol. 2023, 14, 52–60, doi:10.3762/bjnano.14.6

• -assembly ligand photo-cross-linking [26] or by adding monofunctional nanospheres into a suspension of bifunctional gold nanorods [27], it has been shown that the average degree of polymerization of the resulting chains can be controlled. The reduction of solvent quality may also be employed to induce the

Gap-directed chemical lift-off lithographic nanoarchitectonics for arbitrary sub-micrometer patterning

• Chang-Ming Wang,
• Hong-Sheng Chan,
• Chia-Li Liao,
• Che-Wei Chang and
• Wei-Ssu Liao

Beilstein J. Nanotechnol. 2023, 14, 34–44, doi:10.3762/bjnano.14.4

• ) formation. Since the change of line width and necklace gap depends on the magnitude of collapsing phenomenon, similar line width reduction and gap enlarging effects are also observed when the inter pillar distance is raised. Previous studies have shown that the roof-collapse phenomenon is affected by four

• = 2.25 μm), inversed triangular metal hole features are created on the Au layer. Along with pillar height reduction (H = 2.00 and 1.50 μm), Au structures similar to predictions in Scheme 1C are obtained. It should be noted that both the original contact and collapse-induced contacting areas remove

Two-step single-reactor synthesis of oleic acid- or undecylenic acid-stabilized magnetic nanoparticles by thermal decomposition

• Mykhailo Nahorniak,
• Pamela Pasetto,
• Jean-Marc Greneche,
• Volodymyr Samaryk,
• Sandy Auguste,
• Anthony Rousseau,
• Nataliya Nosova and
• Serhii Varvarenko

Beilstein J. Nanotechnol. 2023, 14, 11–22, doi:10.3762/bjnano.14.2

• reduction of nanoparticle diameter below the critical size of 25 nm leads to nanoparticles with superparamagnetic properties [10][11]. Due to the absence of coercive forces in superparamagnetic nanoparticles not exposed to an external magnetic field, they are characterized by good colloidal stability, which

• mono- and dioxide, hydrogen, higher ketones, and hydrocarbons, as well as partial reduction of Fe(III) to Fe(II), results in the formation of magnetic iron oxide nanoparticles [35]. Excess of higher carboxylic acid that has not been bound to the iron salt, did not undergo thermolysis, and is likely to

Atmospheric water harvesting using functionalized carbon nanocones

• Fernanda R. Leivas and
• Marcia C. Barbosa

Beilstein J. Nanotechnol. 2023, 14, 1–10, doi:10.3762/bjnano.14.1

• diameter and 40–50 nm in length. They occur on the surface of natural graphite. Void CNCs can be produced, for example, by decomposing hydrocarbons with a plasma torch [34]. Other simple techniques of production [35] and reduction [36] have also been recently developed. CNCs are completely hydrophobic, but

Electrical and optical enhancement of ITO/Mo bilayer thin films via laser annealing

• Abdelbaki Hacini,
• Ahmad Hadi Ali,
• Nurul Nadia Adnan and
• Nafarizal Nayan

Beilstein J. Nanotechnol. 2022, 13, 1589–1595, doi:10.3762/bjnano.13.133

• resistivity follows for higher annealing energies. The resistivity variation can be explained by the behavior of the metal–semiconductor contact and the effect of laser annealing on the structural defects of the surface. The inclusion of a thin metal film with low resistivity and the reduction of grain

Utilizing the surface potential of a solid electrolyte region as the potential reference in Kelvin probe force microscopy

• Nobuyuki Ishida

Beilstein J. Nanotechnol. 2022, 13, 1558–1563, doi:10.3762/bjnano.13.129

• positive direction. Large anodic and cathodic currents were observed at around 3.75 and 0.75 V, respectively. Considering their potential positions, the current can be attributed to the oxidation and reduction of Ti ions in the solid electrolyte [16]. The redox potential of Ti ions can be estimated to be

• negative direction, a cathodic current due to the reduction of Ti ions started to flow at around 2.8 V (vs Li/Li+). KPFM measurements were performed in the region across the solid electrolyte (Figure 1a). Figure 3a and Figure 3b display the topography and CPD images, respectively, obtained when 0 V was

• electrode decreased relative to that of the solid electrolyte region. When the Au2 electrode potential approached the reduction potential of Ti ions in the solid electrolyte, Ti ions near the Au2 electrode began to be reduced, which suppressed a further decrease in the electrode potential. As mentioned

Photoelectrochemical water oxidation over TiO₂ nanotubes modified with MoS₂ and g-C₃N₄

• Phuong Hoang Nguyen,
• Thi Minh Cao,
• Tho Truong Nguyen,
• Hien Duy Tong and
• Viet Van Pham

Beilstein J. Nanotechnol. 2022, 13, 1541–1550, doi:10.3762/bjnano.13.127

• ability. (i) TNAs only respond to ultraviolet (UV) light [22][23][24], and (ii) they exhibit fast carrier recombination [25]. Recently, the development of new heterojunction architectures through coupling TNAs with other semiconductor materials, especially low-bandgap semiconductors, led to a reduction of

• and reduction reactions at, respectively, the anode and cathode described by Equation 3 and Equation 4. Oxidation reaction at the anode: Reduction reaction at the cathode: Carrying out the reactions in a neutral medium also contributes to the increased durability of the electrodes. However, the lack

• to perform reduction reactions. At that time, H+ will also be reduced at the cathode to form H2. The higher the efficiency of the oxidation reaction, the more e− are generated and the stronger the H+ reduction reaction will be. Preventing recombination of photo-generated e−–h+ pairs in the MoS2/TNAs

Non-stoichiometric magnetite as catalyst for the photocatalytic degradation of phenol and 2,6-dibromo-4-methylphenol – a new approach in water treatment

• Joanna Kisała,
• Anna Tomaszewska and
• Przemysław Kolek

Beilstein J. Nanotechnol. 2022, 13, 1531–1540, doi:10.3762/bjnano.13.126

• halogenated aromatic pollutants. The particularly high degradation efficiency regarding halogen-containing DBMP molecules and the yield of bromide ions indicate that DBMP degradation follows a mixed reduction–oxidation mechanism. DBMP molecules interact with the magnetite surface, enabling them to react with

• igneous and metamorphic rocks [12]. It is also found in sediments and soils. Magnetite has the smallest energy gap, the highest conductivity, and one of the lowest reduction potentials among natural minerals. It is an important reducer of heavy metals and organic pollutants in aquatic environments. Due to

• octahedral iron chain handles its conductivity and redox properties, causing the magnetite to initialize oxidation/reduction reactions. Fe3O4 nanoparticles have been used as a photocatalyst for the degradation of azo dyes [15], for wastewater treatment [16][17], for water decomposition, and for Cr(VI