Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
FINDING: Five-fold rotational symmetry is forbidden in periodic lattices but emerges in quasicrystals via aperiodic tiling governed by the golden ratio. MATH: Golden ratio φ = (1+√5)/2 ≈ 1.618; its reciprocal φ⁻¹ ≈ 0.618; complex golden ratio ζ = e^(iπ/5) = φ/2 + i√(3-φ)/2 (a 5th root of unity). Penrose tilings use tw…
FINDING: Penrose tiling is a 2D aperiodic projection from a 5D hypercubic lattice, using the golden ratio φ to define the projection subspace. MATH: - Projection from 5D cubic lattice ℤ⁵ onto a 2D plane. - The subspace is spanned by vectors (1, φ, φ², φ³, φ⁴) and its Galois conjugate (1, φ⁻¹, φ⁻², φ⁻³, φ⁻⁴), where φ =…
Abstract Herein, for the first time, an azophenine-based organic functional material, N1,N2,N4-tris(2-methoxyphenyl)benzene-1,2,4,5-tetraamine (MMCT), was rationally synthesized by the solvent-free tetramerization of o-anisidine using low Lewis-acid catalyst loading. SC-XRD, HR-MS, UV–vis, fluorescence, FT-IR, and 1H…
Nitrogen and sulfur co-doped carbon quantum dots (NS-CQDs) were synthesized from rice straw using two sustainable bottom-up approaches, microwave-assisted carbonization (MCW) and hydrothermal treatment (HTC), to systematically investigate how the synthesis route influences their physicochemical properties and biologic…
This paper develops a revised mathematical solution framework for the chemistry challenge "Create foundation models that generalize across molecules, reactions, spectra, and materials?". The proposed Adapter-Based Chemical Foundation Architecture (ACFA) was constructed after an earlier formulation failed or remained o…
Abstract We describe the evolution of our early hit-identification workflow for reagent-mediated amidation reactions in support of commercial route development. Over the past decade, our strategy progressed from broad, exhaustive high-throughput experimentation (HTE) with limited data maturity to a modern, enterprise-…
Plastic production and consumption have increased substantially due to the favorable properties of these materials, raising significant environmental concerns because most plastics do not fully decompose. A substantial portion of ocean plastic waste comes from ghost gear, including abandoned fishing nets. In this cont…
Abstract Steam coating forms protective boehmite films on aluminum alloys; however, identifying the primary factors governing corrosion resistance remains challenging due to strong descriptor covariance. We established a physics-informed interpretable machine-learning framework to predict pitting potential ( E pit ) f…
تحلیل بنیادین، بازنویسی تانسوری و اثبات جامعِ کامل پارادوکس امواج شوک مکانیکی غولآسا و فروریزش رسانایی در نانومواد دوبعدی (The Shockwave-Induced Transport Paradox and Conductance Collapse in 2D Nanomaterials - معمای شماره ۶۱ از ۱۰۰) در بستر فیزیک اطلاعات حمزه (HIP-1155) به شرح زیر است: ۱. مقدمه و پارادوکسهای امواج ش…
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…