Materials Literature
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The biosynthesis of copper and copper oxide nanoparticles (Cu/CuO-NPs) has attracted considerable interest due to its non-toxic, eco-friendly nature and wide-ranging applications, especially in nanomedicine and biomedical fields. Traditional nanoparticle production methods often involve toxic chemicals and generate ha…
Silyl ether exchanges represent an appealing motif for the synthesis of dynamic polymers. In this work, the utility and scope of thiolate salts as a catalytic mediator for silyl ether metathesis are explored. On a small scale, thiolate salts can act as robust medium for this exchange reaction. The reaction is sensitiv…
This chapter reviews thermal boundary resistance and conductance at metal–metal interfaces, with emphasis on cryogenic and sub-Kelvin temperatures. Thermal boundary resistance causes a temperature discontinuity at interfaces due to limited real contact area, leading to high local heat flux. While theoretical models pr…
The detection of pesticide residues, including cartap, is crucial because of their environmental persistence and possible effects on ecosystems and human health, hence requiring the establishment of straightforward and dependable analytical techniques. This study presents the development of a graphene–ZnO (Gr/ZnO) nan…
Abstract Reliable surface area estimation remains a practical bottleneck in three-dimensional voxelbased microstructural models, particularly in metallurgical problems governed by interfacial phenomena. While grain volume can be computed directly from voxel counts with minimal ambiguity, surface measures derived from…
Narwhal tusks are among the most intriguing structures in biology due to their immense size and unique left-handed helix. Whether this unique macroscopic homochirality originates in the structural arrangement of tusk building blocks has remained elusive. Therefore, we combined multiple structural techniques to reveal…
In recent years, nanoscale materials have attracted considerable attention owing to their superior optical properties compared to their bulk materials. In this report, using nitrates of metals as oxidizing agents and neem leaves extraction as a bio-based fuel, samarium (Sm 3 + )-doped barium yttrium oxide NPs have bee…
Abstract In this work, we propose a cost-effective and equipment-free in situ optical detection approach for quick, selective and ultrasensitive sequential detection of mercury (Hg2+) and iodide (I−) via fluorescence “ON−OFF−ON” principle. The fluorescent probes, nitrogen and sulfur codoped carbon dots (PCDs) were syn…
Industrial polypropylene portfolios comprise multiple commercial grades differentiated by molecular architecture, phase morphology, processability, and performance. In this study, 81 industrial polypropylene grades, including 38 homopolymers, 21 random copolymers, and 22 impact copolymers, were analyzed to evaluate th…
Electrospun poly(vinylidene fluoride) (PVDF) nanofiber filters are attractive for particulate air filtration because they combine high filtration efficiency with low airflow resistance. Here, three inorganic additives, namely aluminum chloride (AlCl3), potassium nitrate (KNO3), and silicon nitride (Si3N4), were invest…
ABSTRACT Dental caries is a common oral disease primarily caused by dental plaque, with the formation of acquired pellicle being a prerequisite for plaque maturation. Current treatment strategies for dental plaque mainly focus on inhibiting the adhesion and colonization of cariogenic bacteria, but lack effective appro…
Engineering oxygen vacancies at the nanoscale is instrumental for controlling oxygen dynamics that underpin diverse functional behaviors in oxide materials. Here, we present a magnetic-field-assisted synthesis platform that leverages static magnetic fields (3 T) to actively engineer oxygen vacancies in gadolinium oxid…
This revised article addresses Q0027, 'Control interfacial assembly of nanoparticles and surfactants?' using a question-specific mathematical construction rather than a generic logarithmic template. The proposed model, termed the Interfacial Assembly Free-Energy Drift Model, uses surface coverage theta, particle order…
Abstract Sulfur hexafluoride (SF6) can be decomposed under electrical or thermal stress in gas-insulated switchgear (GIS), and the resulting byproducts pose safety risks and provide diagnostic signals. In this work, density-functional-theory calculations were used to evaluate gas-sensing descriptors for six representa…
Researchers at the Max Planck Institute for Polymer Research in Germany have published a review surveying the current state of quantum sensing that uses nitrogen-vacancy (NV) centers in nanodiamonds to detect free radicals. The review emphasizes that T1 relaxometry with NV centers can measure the local paramagnetic en…
Understanding the potential dependent thermodynamic properties and growth-dissolution kinetics of electrode-supported metallic clusters is essential in many situations. The classical approach to do so treats clusters as “droplets” of the metal that possess a constant surface tension. It is shown here that upon treatin…
FINDING: Project Euler hardest problems often reduce to graph theory (NP-complete clique search) or prime sum sieves with Riemann hypothesis implications. | MATH: Figurate number sequences: heptagonal numbers \( P_7(n) = \frac{n(5n-3)}{2} \); cyclic set condition: last digits of one figurate number match first digits…
Cationic covalent organic frameworks (COFs) hold great potential for ion conduction and catalysis, yet poor crystallinity from interlayer electrostatic repulsion severely limits their performance. Herein, we demonstrate that lattice-matched polyoxometalates (POMs) as multifunctional counterions can direct the crystall…
Abstract Glassy materials undergo physical aging, changing their physical properties as they approach thermodynamic equilibrium. When confined in nanopores, glass-forming systems exhibit peculiar behavior, including out-of-equilibrium phenomena observed on a molecular time scale much faster than in the bulk. This occu…
Maqolada yelka suyagi proksimal qismi sinishlarida medial tayanch va CALCAR sohasi barqarorligini tiklashning jarrohlik natijalariga ta’siri tahlil qilindi. Medial ustunning buzilishi, metafizar komminutsiya va CALCAR defekti bloklovchi plastina bilan osteosintezda ikkilamchi varus deformatsiya, vintlarning bo‘g‘im ic…