Intermixing of MoS₂ and WS₂ photocatalysts toward methylene blue photodegradation

• Maryam Al Qaydi,
• Nitul S. Rajput,
• Michael Lejeune,
• Abdellatif Bouchalkha,
• Mimoun El Marssi,
• Steevy Cordette,
• Chaouki Kasmi and
• Mustapha Jouiad

Beilstein J. Nanotechnol. 2024, 15, 817–829, doi:10.3762/bjnano.15.68

• binding energies). This means there is no chemical shift in the compounds, implying that the intermixing of Mo and W did not disturb the chemical environment, and the elements retained a stable chemical bond. Microstructure analysis Figure 4 shows scanning electron microscopy (SEM) images of all

Synthesis of silver–palladium Janus nanoparticles using co-sputtering of independent sources: experimental and theorical study

• Maria J. Martínez-Carreón,
• Francisco Solís-Pomar,
• Abel Fundora,
• Claudio D. Gutiérrez-Lazos,
• Sergio Mejía-Rosales,
• Hector N. Fernández-Escamilla,
• Jonathan Guerrero-Sánchez,
• Manuel F. Meléndrez and
• Eduardo Pérez-Tijerina

Beilstein J. Nanotechnol. 2024, 15, 808–816, doi:10.3762/bjnano.15.67

• that present two faces or regions with different chemical or physical properties in a single particle. Their compositional asymmetry can lead to interesting interactions with their environment or other materials, which give them properties and potential applications that homogeneous nanoparticles do

• addition, Pd–Ag alloys form during the Pd nucleation in an environment with Ag atoms. Therefore, other Janus nanoparticles can be composed of Ag/AgPd or Ag/AgPd/Pd, where the AgPd alloy could be on one side of the particle (labeled as Ag/AgPd) or between Ag and Pd (labeled as Ag/AgPd/Pd). Considering such

Electrospun polysuccinimide scaffolds containing different salts as potential wound dressing material

• Veronika Pálos,
• Krisztina S. Nagy,
• Rita Pázmány,
• Krisztina Juriga-Tóth,
• Bálint Budavári,
• Judit Domokos,
• Dóra Szabó,
• Ákos Zsembery and
• Angela Jedlovszky-Hajdu

Beilstein J. Nanotechnol. 2024, 15, 781–796, doi:10.3762/bjnano.15.65

• fulfill multiple needs: shielding the wound against bacterial infection, facilitating proper gas exchange, providing an environment that promotes healing, and controlling biofluid production [8][9]. Furthermore, it should be nontoxic and hypoallergenic [10]. By using electrospinning, nanofibers can be

• investigated using FTIR spectroscopy. However, for a wound dressing, the salts must leach out of the scaffolds to promote their local antibacterial effect on the desired environment. In distilled water, salt-containing scaffolds were soaked, and the conductivity of the solution was measured (Supporting

Green synthesis of biomass-derived carbon quantum dots for photocatalytic degradation of methylene blue

• Dalia Chávez-García,
• Mario Guzman,
• Viridiana Sanchez and
• Rubén D. Cadena-Nava

Beilstein J. Nanotechnol. 2024, 15, 755–766, doi:10.3762/bjnano.15.63

• a dark environment to ensure proper dispersion of the CQDs in aqueous media and the adsorption of the dye on the CQD surface. After the stirring period of 20 min, the solution absorbance was measured using a spectrophotometer in the wavelength range of 250–800 nm. This measurement marked the start

Gold nanomakura: nanoarchitectonics and their photothermal response in association with carrageenan hydrogels

• Nabojit Das,
• Vikas,
• Akash Kumar,
• Sanjeev Soni and
• Raja Gopal Rayavarapu

Beilstein J. Nanotechnol. 2024, 15, 678–693, doi:10.3762/bjnano.15.56

• Nabojit Das Vikas Akash Kumar Sanjeev Soni Raja Gopal Rayavarapu Nanomaterial Toxicology Laboratory, Drug and Chemical Toxicology Group, Food, Drug & Chemical, Environment and Systems Toxicology (FEST) Division, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31

Functional fibrillar interfaces: Biological hair as inspiration across scales

• Guillermo J. Amador,
• Brett Klaassen van Oorschot,
• Caiying Liao,
• Jianing Wu and
• Da Wei

Beilstein J. Nanotechnol. 2024, 15, 664–677, doi:10.3762/bjnano.15.55

• bodies of mammals, over trichomes of plants, to the mastigonemes on the flagella of single-celled organisms. While these long and slender protuberances are passive, they are multifunctional and help to mediate interactions with the environment. They provide thermal insulation, sensory information

• not lessen their importance. They play a crucial role in mediating an organism’s interactions with the environment, serving various functions depending on their deformations, which are driven purely by their surroundings. Altogether, following the definition above, the structures covered in this

• , ranging from the smallest known parasitoid wasp (Dicopomorpha echmepterygis, 2.5 × 10−8 kg) to the great bustard (Otis tarda, 21 kg). The fluid regimes experienced by these organisms vary greatly with scale, from a highly viscous, laminar environment at the smallest sizes to an inertial, turbulent

Comparative analysis of the ultrastructure and adhesive secretion pathways of different smooth attachment pads of the stick insect Medauroidea extradentata (Phasmatodea)

• Julian Thomas,
• Stanislav N. Gorb and
• Thies H. Büscher

Beilstein J. Nanotechnol. 2024, 15, 612–630, doi:10.3762/bjnano.15.52

• ; Introduction Throughout their evolutionary timeline, insects evolved various surfaces interacting with the environment. These include friction-based adhesive organs, which are essential for locomotion by generating frictional and adhesive forces [1][2][3][4]. Two morphologically different friction-based

• comprised of relatively thick cuticle fibres that branch into finer ones within the branching rod layer, terminating in the superficial layer (sf) (Figure 3D). The superficial layer is the outermost layer in the arolium and is in direct contact with the environment. When examined with a light microscope

Cholesterol nanoarchaeosomes for alendronate targeted delivery as an anti-endothelial dysfunction agent

• Horacio Emanuel Jerez,
• Yamila Roxana Simioni,
• Kajal Ghosal,
• Maria Jose Morilla and
• Eder Lilia Romero

Beilstein J. Nanotechnol. 2024, 15, 517–534, doi:10.3762/bjnano.15.46

• embryogenesis [53]. EndMT is observed under inflammatory conditions similar to the environment generated during sepsis or pathological processes such as renal, cardiac and pulmonary fibrosis, and cancer [54][55][56][57]. In the mild inflation model, LPS induced in HUVECs morphological changes compatible with

• require additional biochemical studies. The long-term effect of the presence of archaeolipids (lipids from distant phylogenetic origin) on the membrane of viable cells is another topic deserving further deeper exploration. Conclusion This is the first report showing that in an environment of intense

Electron-induced deposition using Fe(CO)₄MA and Fe(CO)₅ – effect of MA ligand and process conditions

• Hannah Boeckers,
• Atul Chaudhary,
• Petra Martinović,
• Amy V. Walker,
• Lisa McElwee-White and
• Petra Swiderek

Beilstein J. Nanotechnol. 2024, 15, 500–516, doi:10.3762/bjnano.15.45

• [5]. Notably, when the FEBID process is performed under ultrahigh vacuum (UHV) conditions instead of the usual high vacuum conditions prevalent in SEMs, deposits with purities up to 95 atom % Fe can be obtained from Fe(CO)5 [21]. Also, the well-controlled environment of such UHV studies revealed that

Aero-ZnS prepared by physical vapor transport on three-dimensional networks of sacrificial ZnO microtetrapods

• Veaceslav Ursaki,
• Tudor Braniste,
• Victor Zalamai,
• Emil Rusu,
• Vladimir Ciobanu,
• Vadim Morari,
• Daniel Podgornii,
• Pier Carlo Ricci,
• Rainer Adelung and
• Ion Tiginyanu

Beilstein J. Nanotechnol. 2024, 15, 490–499, doi:10.3762/bjnano.15.44

• the bandgap of the wurtzite ZnS phase is larger than that of the zinc blende phase. The behavior of these PL bands is also different in the two samples when changing the environment, as deduced from Figure 5. The intensity of the PL bands in the sample prepared in the 4 h procedure is not

• significantly different when measured at room temperature in air and in vacuum (Figure 5a), while the intensity of the 2.4 eV band decreases significantly with changing the environment from air to vacuum in the sample prepared in the 8 h procedure (Figure 5b). A PL band at 3.62 eV is observed in the spectra

• , some suppositions are possible. The fact that the intensity of the low-energy PL band around 2.4 eV decreases significantly with changing the environment from air to vacuum in the sample prepared in the 8 h technological procedure may indicate the participation of surface states in the recombination

Fabrication of nanocrystal forms of ᴅ-cycloserine and their application for transdermal and enteric drug delivery systems

• Hsuan-Ang Tsai,
• Tsai-Miao Shih,
• Theodore Tsai,
• Jhe-Wei Hu,
• Yi-An Lai,
• Jui-Fu Hsiao and
• Guochuan Emil Tsai

Beilstein J. Nanotechnol. 2024, 15, 465–474, doi:10.3762/bjnano.15.42

• formulation. The pH stability test of DCS We prepared two solutions for pH stability test to simulate the gastrointestinal environment: 0.1 M of an HCl solution (pH 1.2 at the stomach) (Sigma-Aldrich) and 0.1 M of phosphate buffer (pH 7.4 at the terminal ileum) (Sigma-Aldrich) [26]. Approximately 5 mg of DCS

• brown within approximately 10 min. As shown in Figure 3, the amount of DCS was remarkably reduced by 40% compared to the initial amount in an acidic environment simulating the stomach (pH 1.2). This finding is consistent with a previous study showing that DCS is sensitive to acidic conditions and can be

• labile and prone to decomposition in an acidic environment (Figure 3). Therefore, we developed enteric formulations of both DCS nanocrystals and commercial DCS powder to reduce the acid lability. Our PK results indicated that, compared to the commercial DCS powder, DCS nanocrystals had better

Superconducting spin valve effect in Co/Pb/Co heterostructures with insulating interlayers

• Andrey A. Kamashev,
• Nadir N. Garif’yanov,
• Aidar A. Validov,
• Vladislav Kataev,
• Alexander S. Osin,
• Yakov V. Fominov and
• Ilgiz A. Garifullin

Beilstein J. Nanotechnol. 2024, 15, 457–464, doi:10.3762/bjnano.15.41

• for 60 s. It was shown in [43] that significant partial oxidation of a few nanometers thin metallic Co layer can be achieved by exposing it to the ambient atmospheric environment, implying that lowering the atmospheric pressure by five orders of magnitude enables one to oxidize only the surface

Potential of a deep eutectic solvent in silver nanoparticle fabrication for antibiotic residue detection

• Le Hong Tho,
• Bui Xuan Khuyen,
• Ngoc Xuan Dat Mai and
• Nhu Hoa Thi Tran

Beilstein J. Nanotechnol. 2024, 15, 426–434, doi:10.3762/bjnano.15.38

• by different kinds of surfactants such as cetyltrimethylammonium bromide [20][21], polyvinylpyrrolidone [18], and sodium dodecyl sulfate [21][22]. However, these chemicals have many negative effects on the environment including microbial, plant, soil, and marine ecosystems as reported by Rebello and

Unveiling the nature of atomic defects in graphene on a metal surface

• Karl Rothe,
• Nicolas Néel and
• Jörg Kröger

Beilstein J. Nanotechnol. 2024, 15, 416–425, doi:10.3762/bjnano.15.37

• defect is of kind 1. It resides at a valley of the moiré lattice (data for a type-1 defect at the other valley site are presented in Supporting Information File 1, Figure S2). Its brighter contrast compared to the intact graphene environment in the AFM topograph indicates that the attraction of type-1

Classification and application of metal-based nanoantioxidants in medicine and healthcare

• Nguyen Nhat Nam,
• Nguyen Khoi Song Tran,
• Tan Tai Nguyen,
• Nguyen Ngoc Trai,
• Nguyen Phuong Thuy,
• Hoang Dang Khoa Do,
• Nhu Hoa Thi Tran and
• Kieu The Loan Trinh

Beilstein J. Nanotechnol. 2024, 15, 396–415, doi:10.3762/bjnano.15.36

• microenvironments have different pH values and temperatures depending on the part and physiological status of the body. Thus, natural CAT usually suffers from low stability and is sensitively influenced by the environment. Several reports investigated the effect of pH and temperature on CAT activity as well the

• the inflammatory sites. The acidic environment at the inflammatory sites induced MOF disaggregation, resulting in the release of carbon dot-SOD nanozymes and CD98 CRISPR/Cas9 plasmids. The released nanozymes and plasmids contributed to ROS scavenging and reduced the CD98 gene expression, respectively

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

• branches. Data on the dimension and aspect ratio given here for this plant species are related only to the branches, which are usually exposed to the environment, but not to the whole tubules. Attachment organs of the Chrysolina fastuosa male beetle General morphology The tarsus of C. fastuosa possesses

Controllable physicochemical properties of WO_x thin films grown under glancing angle

• Rupam Mandal,
• Aparajita Mandal,
• Alapan Dutta,
• Rengasamy Sivakumar,
• Sanjeev Kumar Srivastava and
• Tapobrata Som

Beilstein J. Nanotechnol. 2024, 15, 350–359, doi:10.3762/bjnano.15.31

• duration of 1200 s to achieve stability in depositions and contamination-free films. A constant substrate rotation (10 rpm) was maintained to achieve uniform WOx films. Post-growth annealing of all WOx films (grown under the same conditions) was performed at 673 K for 60 min in a vacuum environment (3 × 10

• uniformity. WSxM software was used to carry out AFM image analysis. Kelvin probe force microscopy (KPFM) was used to study the local work function of the WOx films. WOx samples were removed from the high-vacuum environment right before the KPFM measurements to avoid any contamination in air. For KPFM

Exploring the relationships between physiochemical properties of nanoparticles and cell damage to combat cancer growth using simple periodic table-based descriptors

• Joyita Roy and
• Kunal Roy

Beilstein J. Nanotechnol. 2024, 15, 297–309, doi:10.3762/bjnano.15.27

• them effectively for regulated use. Although NMs are utilized in therapeutics, their cytotoxicity has attracted great attention. Nanoscale quantitative structure–property relationship (nano-QSPR) models can help in understanding the relationship between NMs and the biological environment and provide

• studies have demonstrated that metal oxide nanoparticles (MeOx NPs) are toxic and tend to have adverse effects on living organisms and the environment [2][3][4][5][6]. The toxicity of NPs depends on various structural (intrinsic) [7] and extrinsic properties. Depending on the dispersing environment

• solution. It is closely related to suspension stability and morphology. In metals, the zeta potential can be altered by altering pH, concentration, and conductivity of the components of NPs [10]. Zeta potential can provide information regarding the fate, behavior, and toxicity of NPs in the environment as

Determining by Raman spectroscopy the average thickness and N-layer-specific surface coverages of MoS₂ thin films with domains much smaller than the laser spot size

• Felipe Wasem Klein,
• Jean-Roch Huntzinger,
• Vincent Astié,
• Damien Voiry,
• Romain Parret,
• Houssine Makhlouf,
• Sandrine Juillaguet,
• Jean-Manuel Decams,
• Sylvie Contreras,
• Périne Landois,
• Ahmed-Azmi Zahab,
• Jean-Louis Sauvajol and
• Matthieu Paillet

Beilstein J. Nanotechnol. 2024, 15, 279–296, doi:10.3762/bjnano.15.26

• MoS2 flakes prepared in different ways. In other words, one cannot define a single master curve, ΔωA−E vs N, which would be valid for all the MoS2 flakes independently of their preparation method or environment. The dependencies on N of the normalized integrated intensities of A1g and E12g modes and

Vinorelbine-loaded multifunctional magnetic nanoparticles as anticancer drug delivery systems: synthesis, characterization, and in vitro release study

• Zeynep Özcan and
• Afife Binnaz Hazar Yoruç

Beilstein J. Nanotechnol. 2024, 15, 256–269, doi:10.3762/bjnano.15.24

• ]. During this process in an alkaline environment, PDA polymerizes into its oxide form. As a result, the nanostructure undergoes coating with PDA [47]. The average distribution of PDA coating sizes and thicknesses was determined using FE-SEM size analysis. In Figure 1c, the average size of bare Fe3O4 NPs

• modulate the chemical environment in which the polymerization occurs [57]. Consequently, pH alterations may induce changes in the surface charge of the nanoparticles. This could profoundly affect the drug binding capacity of the nanoparticles and implies that the nanoparticles may exhibit varying

Design, fabrication, and characterization of kinetic-inductive force sensors for scanning probe applications

• August K. Roos,
• Ermes Scarano,
• Elisabet K. Arvidsson,
• Erik Holmgren and
• David B. Haviland

Beilstein J. Nanotechnol. 2024, 15, 242–255, doi:10.3762/bjnano.15.23

• interferometric and beam-deflection detectors of motion are sufficient to resolve the thermal noise force determined by the damping of the cantilever eigenmode in thermal equilibrium with its environment. Operation in high vacuum and at cryogenic temperatures reduces this force noise, improving sensitivity to the

• was verified both at room temperature and in a cryogenic environment. Thus, the deposited material is suitably conductive for STM and various electrostatic AFM techniques that require applying a low-frequency voltage to the tip. Mechanical mode Our chips were the same size as an AFM cantilever chip

Multiscale modelling of biomolecular corona formation on metallic surfaces

• Parinaz Mosaddeghi Amini,
• Ian Rouse,
• Julia Subbotina and
• Vladimir Lobaskin

Beilstein J. Nanotechnol. 2024, 15, 215–229, doi:10.3762/bjnano.15.21

• of the NP, which is influenced by its physicochemical composition, (ii) the interface between the solid NP and the surrounding liquid environment, where notable changes occur upon interaction, and (iii) the contact zone between the solid–liquid interface and biological substrates (Figure 2) [22]. In

• analogues (SCA) within the system [33][34]. The AMBER force field is a widely recognized and extensively validated force field that provides accurate descriptions of molecular systems [35]. We evaluated the short-range PMFs between 22 SCAs and an Al slab in a solvent environment comprising water and salt

Ion beam processing of DNA origami nanostructures

• Leo Sala,
• Agnes Zerolová,
• Violaine Vizcaino,
• Alain Mery,
• Alicja Domaracka,
• Hermann Rothard,
• Philippe Boduch,
• Dominik Pinkas and
• Jaroslav Kocišek

Beilstein J. Nanotechnol. 2024, 15, 207–214, doi:10.3762/bjnano.15.20

• install in large infrastructures. Nonetheless, it is possible that the most probable mechanism of the height variation could be the radical attack from the environment when the irradiation is done in air. A similar behavior was observed also upon chemical modification of the nanostructures [38]. DNA

Graphene removal by water-assisted focused electron-beam-induced etching – unveiling the dose and dwell time impact on the etch profile and topographical changes in SiO₂ substrates

• Aleksandra Szkudlarek,
• Jan M. Michalik,
• Inés Serrano-Esparza,
• Zdeněk Nováček,
• Veronika Novotná,
• Piotr Ozga,
• Czesław Kapusta and
• José María De Teresa

Beilstein J. Nanotechnol. 2024, 15, 190–198, doi:10.3762/bjnano.15.18

• analysis. Thus, the graphene could be modified and immediately measured by AFM without changing the environment. The analysis was performed by using the tapping mode and the Akiyama probe (Nanosensors). Data shown in Figure 4 were measured with the following parameters: scan speed of 20 µm/m, scan range of

Assessing phytotoxicity and tolerance levels of ZnO nanoparticles on Raphanus sativus: implications for widespread adoptions

• Pathirannahalage Sahan Samuditha,
• Nadeesh Madusanka Adassooriya and
• Nazeera Salim

Beilstein J. Nanotechnol. 2024, 15, 115–125, doi:10.3762/bjnano.15.11

• Lanka 10.3762/bjnano.15.11 Abstract The escalating release of zinc oxide nanoparticles (ZnO NPs) into the environment poses a substantial threat, potentially leading to increased concentrations of zinc (Zn) in the soil and subsequent phytotoxic effects. This study aimed to assess the effects of ZnO NPs

• toxicity of nanoscale agrochemicals and the unknown risks to the environment and humans have been gaining greater attention [9]. The application of ZnO NPs to the soil as fertilizers and pesticides has given rise to increasing usage of ZnO NPs in consumer products and agriculture [15]. The global yearly

• output of ZnO NPs is estimated to be between 550–35,000 tons [16]. From this, a significant percentage of approx. 8–28 tons is being released directly or indirectly into the soil environment, where plants are exposed to the direct influence of ZnO NPs [16]. Thus, plants become a prospective conduit for