jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Bo-Rong Lin | Feiyang Cheng | Feng Yun | Mengting Wei | Yuanyuan Li | Chen Shi | Jian Han
Source: Polymer Engineering and Science (article, 2025-02-12)
Field: Materials Science — Biomaterials

Thermally stable CuO@ZIF‐8 nanomaterials for melt spinning to achieve efficient and persistent antibacterial polyester fibers Abstract Antibacterial fabrics have garnered significant attention due to bacterial infection‐related public safety problems. However, the challenge of creating textiles with efficient and durable antibacterial properties remains significant. In this study, an eco‐friendly calcination technique was applied to synthesize a nanostructured CuO@ZIF‐8 antibacterial agent. The resulting material exhibits both efficient and durable antibacterial performance. Polyethylene terephthalate (PET) was used as the fiber matrix, and PET/CuO@ZIF‐8 fibers were produced using melt spinning technology. The results indicate that the antibacterial material is well dispersed within the PET matrix, which promotes crystallization during the cooling process. With a 99.9% maximum bactericidal rate against E. coli and S. aureus , the altered polyester fibers demonstrated strong antibacterial activity. Furthermore, the modified polyester fibers exhibited excellent wash resistance, maintaining antibacterial rates of 93.7% against S. aureus and 92.6% against E. coli after 50 washes. This work presents a fresh method for producing efficient and durable antibacterial polyester fibers. Highlights Eco‐friendly calcination synthesizes CuO@ZIF‐8 antibacterial agent. PET fibers incorporated with CuO@ZIF‐8 via melt spinning technology. Antibacterial material well‐dispersed in PET, promoting crystallization. The PET fibers exhibit efficient and durable antibacterial performance. Materials science ; Spinning ; Polyester ; Nanomaterials ; Composite material ; Chemical engineering ; Nanotechnology Electrospun Nanofibers in Biomedical Applications ; Metal-Organic Frameworks: Synthesis and Applications ; Membrane Separation Technologies
Authors: Ran He | Sheng Wang | Feiye Ju | Zhao Huang | Yuan Gao | Jing Zhang | Nongyue He | Libo Nie
Source: Biosensors (review, 2025-01-25)
Field: Materials Science — Materials Chemistry

Metal Nanocluster-Based Biosensors for DNA Detection The early detection of genetic diseases is a critical need in modern medicine, underscoring the importance of developing deoxyribonucleic acid (DNA) biosensors. In recent years, metal nanoclusters (MNCs) have demonstrated significant potential as biosensors for DNA detection due to their ultra-small size, excellent photostability, bright photoluminescence, low toxicity and other outstanding properties. This review firstly discusses the characteristics of MNCs, which are effective in the early diagnosis of DNA diseases. Subsequently, different synthesis methods of MNCs are introduced. In the following section, DNA sensors based on different types of MNCs and their respective detection mechanisms are discussed in detail. Finally, the opportunities and challenges faced by DNA sensors based on MNCs are analyzed. Biosensor ; Nanoclusters ; Nanotechnology ; DNA ; Materials science ; Computational biology ; Biochemical engineering ; Computer science ; Chemistry ; Biology ; Biochemistry ; Engineering Nanocluster Synthesis and Applications ; Advanced biosensing and bioanalysis techniques ; Advanced Nanomaterials in Catalysis
Authors: Haotian Jiang | Yanxiang Wang | Chengjuan Wang | Yongbo Wang | Yue Sun | Jinghe Guo | B.Z. Ding | Shichao Dai | Dongming Liu | Hui Li
Source: Nano Research (article, 2025-07-29)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Construction of MIL-88C/CuCo <sub>2</sub>S <sub>4</sub>-derived bamboo-like carbon nanotubes/carbon nanofiber aerogels for high-efficiency microwave absorption and thermal insulation performances Multifunctional carbon aerogels have garnered significant attention due to their promising applications in thermal insulation and electromagnetic wave (EMW) absorption. In this study, MIL-88C/CuCo<sub>2</sub>S<sub>4</sub> composite powders were self-assembled and anchored onto the aerogel framework, followed by the deposition of carbon nanotubes (CNTs) via catalytic chemical vapor deposition, yielding MIL-88C/CuCo<sub>2</sub>S<sub>4</sub>-derived bamboo-like CNTs/carbon nanofiber aerogels (FCC@CC series). By modulating component loading ratios, the formation of a three-dimensional conduction network, the presence of heterogeneous interfaces, enhanced magnetic loss, and engineered defects synergistically optimized dielectric and magnetic loss. This adjustment improved the impedance matching of the composite carbon aerogel, resulting in exceptional EMW absorption performance. The FCC@CC2 sample achieved a minimum reflection loss of −71.15 dB and an effective absorption bandwidth of 6.10 GHz. CST simulations further demonstrated the practical applicability, showing a maximum radar cross-section reduction of 34.92 dB·m<sup>2</sup>. Power loss density and electric field distribution analyses corroborated the superior electromagnetic attenuation capabilities of the FCC@CC. This work establishes a methodology for developing lightweight multifunctional aerogels with pressure resistance, thermal insulation, and infrared stealth properties, providing a novel strategy for the fabrication of microwave absorbers for use under complex conditions. Carbon nanofiber ; Bamboo ; Materials science ; Carbon nanotube ; Microwave ; Thermal insulation ; Carbon fibers ; Absorption (acoustics) ; Nanofiber ; Composite material ; Thermal ; Nanotechnology ; Composite number Electromagnetic wave absorption materials ; Aerogels and thermal insulation ; Supercapacitor Materials and Fabrication
Authors: Nicola Manca | Alejandro Enrique Plaza | L. Cichetto | Warner J. Venstra | Cristina Bernini | D. Marré | L. Pellegrino
Source: Advanced Science (article, 2025-05-01)
Field: Materials Science — Materials Chemistry

Oxide Membranes from Bulk Micro‐Machining of SrTiO <sub>3</sub> Substrates Suspended micro-structures made of epitaxial complex oxides rely on surface micro-machining processes based on sacrificial layers. These processes prevent to physically access the microstructures from both sides, as substantial part of the substrate is not removed. In this work, a bulk micromachining protocol is developed for a commonly used substrate employed in oxide thin films deposition. Suspended oxide thin film devices are realized by fabricating pass-through holes across SrTiO<sub>3</sub>(100) or SrTiO<sub>3</sub>(110) substrates. Careful calibration of anisotropic etching rates allows controlling the final geometry of the aperture in the substrate in a predictable way. As demonstrators of possible device geometries, clamped membranes and trampolines realized from deposited thin films of (La,Sr)MnO<sub>3</sub>, a conductive magnetic oxide, and a suspended trampoline resonator carved from the SrTiO<sub>3</sub> substrate itself are presented. Reported protocols can be readily applied to a broad variety of other complex oxides so to extend the use of membranes technology beyond those of commercially available silicon compounds. Materials science ; Substrate (aquarium) ; Oxide ; Thin film ; Membrane ; Surface micromachining ; Silicon ; Etching (microfabrication) ; Nanotechnology ; Epitaxy ; Optoelectronics ; Composite material ; Chemical engineering ; Fabrication ; Metallurgy ; Chemistry ; Layer (electronics) Electronic and Structural Properties of Oxides ; Ferroelectric and Piezoelectric Materials ; Semiconductor materials and devices
Authors: Georg Zeeb
Source: Materials research proceedings (article, 2025-01-01)
Field: Materials Science — General Materials Science

Influence of gripper positions on the formation of wrinkles during the thermoforming process of thermoplastic UD-tape laminates Abstract. Thermoforming multiaxial UD fiber-reinforced thermoplastic tape laminates into complex geometries can lead to undesirable forming defects, such as out-of-plane wrinkles. These are detrimental to the performance of the resulting part and cannot be prevented by optimizing conventional process parameters alone. Other studies have therefore identified the introduction of membrane tension into the laminate during the forming stroke as an additional manipulation option to reduce wrinkling. The implementation of these membrane tensions is facilitated by the utilization of tension grippers, which can be positioned at various locations. To investigate the extent to which the position of the grippers affects the forming result, a forming study was carried out. Three different gripper positioning configurations were defined and applied to the forming of the UD tape laminates. Using an industrial scale automated process, the laminates were both fully and partially formed into a complex geometry using each gripper configuration. To evaluate the influence of gripper positioning on the forming result, the components were 3D scanned and compared and evaluated in terms of their external contour, surface curvature and thickness distribution. The influence of the gripper configuration was demonstrated for all three variables investigated. Concurrently, the analysis revealed discernible correlations between the three variables examined. Areas with locally high surface curvature also showed local thickening at identical locations, and more uniform material feed resulted in lower surface curvature. Thermoforming ; Materials science ; Thermoplastic ; Composite material ; Process (computing) ; Mechanical engineering ; Computer science ; Engineering Material Properties and Applications ; Additive Manufacturing and 3D Printing Technologies ; Innovations in Concrete and Construction Materials
Authors: Haijun Zhu | Lihua Dai | Fei Wang | Yin Liu | Shumei Zhai
Source: Nanotechnology Reviews (article, 2025-01-01)
Field: Materials Science — Materials Chemistry

An updated overview of nanoparticle-induced cardiovascular toxicity Abstract The cardiovascular system is pivotal in the systemic distribution and toxicity of nanoparticles (NPs) upon their entry into circulation. Therefore, it is crucial to extensively investigate the adverse cardiovascular effects of NPs. This review presents the advancements in understanding the cardiovascular distribution of NPs and their potential adverse effects, particularly in humans. We first discussed the uptake and distribution of NPs in cardiovascular tissues and cells, which result in adverse outcomes such as hemolysis, blood coagulation dysfunction, vascular endothelial damage, and cardiac pathological damage and function impairment. Additionally, we discuss the current understanding of the mechanisms underlying NP-induced cardiovascular toxicity, including oxidative stress, inflammation, mitochondrial damage, and autophagy. Moreover, we systematically reviewed the factors influencing NPs circulation, retention, clearance, and toxicity within the cardiovascular system, which include the primary physicochemical properties of NPs, modifications of NPs with biological molecules, physiological and pathological conditions of the body, and their interaction with other environmental chemicals. Finally, we proposed the challenges associated with NP cardiovascular toxicity, with the aim of providing insights into the interactions between NPs and cardiovascular components and offering valuable perspectives for the development of safer NP-based therapies and biomedical applications. Toxicity ; Nanoparticle ; Nanotechnology ; Computational biology ; Chemistry ; Medicine ; Materials science ; Biology ; Internal medicine Nanoparticles: synthesis and applications ; Graphene and Nanomaterials Applications ; Nanoparticle-Based Drug Delivery
Authors: R. Manjunath | Santosh L. Gaonkar
Source: ChemistrySelect (article, 2025-01-01)
Field: Chemistry — Organic Chemistry

Ataluren, a 1,2,4‐Oxadiazole‐Containing Drug Candidate for Nonsense Mutations: Major Breakthroughs and an Up‐to‐Date Process Chemistry Review Abstract Genetic ailments such as Duchenne muscular dystrophy (DMD) and cystic fibrosis (CF) arise due to nonsense mutations. A nonsense mutation occurs when a point mutation changes a sense codon that codes for an amino acid to a stop codon, which leads to premature termination of mRNA translation. Because of this, a truncated protein product is produced; therefore, it is called a premature termination codon (PTC), and several diseases, such as CF, DMD, and congenital myopathy, arise due to the production of a truncated protein. The bioactive compound ataluren, formerly known as PTC124, is believed to modulate the translation machinery and enhance the synthesis of fully functioning, full‐length protein by permitting the readthrough of PTCs during mRNA translation. Ataluren, known by the brand name Tranlsarna, is currently authorized to treat nonsense mutations in DMD and other diseases in the European Union and other countries. In this work, an earnest effort has been made to bring about significant breakthroughs and elucidate its mechanisms of action, and an up‐to‐date synthetic review has been carried out. Nonsense ; Nonsense mutation ; Chemistry ; Computational biology ; Medicine ; Biology ; Mutation ; Biochemistry ; Gene ; Missense mutation Click Chemistry and Applications ; DNA and Nucleic Acid Chemistry ; Advanced biosensing and bioanalysis techniques
Authors: Hang Zhai | Weiguang Gong | Xi Shen | Xubin Ye | Xianqi Song | Peng Liu | Dayu Yan | Youguo Shi | Richeng Yu | Xiaohui Yu | Quan Li | Yanming Ma
Source: Fundamental Research (article, 2025-01-11)
Field: Materials Science — Materials Chemistry

Significant enhancement of hardness and stability in the Sc Ta1-B2 transition-metal diborides system Transition-metal borides have emerged as promising candidates for potential superhard materials due to their remarkable mechanical properties, favorable synthesis conditions and diverse physical properties. However, achieving the requisite hardness for classification as superhard materials in transition-metal borides remains a significant challenge. In this study, we employed a multicomponent strategy to optimize electron band filling, investigating the thermodynamic stability and mechanical properties of Sc <i><sub>x</sub></i> Ta<sub>1-</sub> <i><sub>x</sub></i> B<sub>2</sub> (0 ≤ <i>x</i> ≤ 1) transition-metal diborides. Calculations predicted Sc<sub>0.5</sub>Ta<sub>0.5</sub>B<sub>2</sub> as the most promising composition, with its Fermi level located near the pseudogap, resulting in the lowest thermodynamic energy and superior mechanical properties. Experimentally, Sc<sub>0.5</sub>Ta<sub>0.5</sub>B<sub>2</sub> was successfully synthesized under ambient pressure, achieving a hardness of 31.5 GPa under a 4.9 N load, the highest hardness reported for single-phase transition-metal borides. Additionally, Sc<sub>0.5</sub>Ta<sub>0.5</sub>B<sub>2</sub> shows an electrical resistivity of 104.9 µΩ·cm at room temperature, indicating its excellent electrical conductivity. These findings provide critical insights for the design of novel superhard metal materials, achieved through electron filling modifications induced by multicomponent strategies. This approach expands the potential for developing cost-effective, superhard materials, with implications for advancing transition-metal diborides. Materials science ; Transition metal ; Stability (learning theory) ; Metallurgy ; Chemistry ; Computer science ; Machine learning MXene and MAX Phase Materials ; Intermetallics and Advanced Alloy Properties ; Advanced ceramic materials synthesis
Authors: Hexigeduleng Bao | Yu Wang | Hainan Bao | Feijuan Wang | Qiong Jiang | Xiaoyan He | Hua Li | Yanfei Ding | Cheng Zhu
Source: Plants (article, 2025-10-19)
Field: Chemistry — Analytical Chemistry

Ecotoxicological Impacts of Heavy Metals on Medicinal Plant Quality and Rhizosphere Microbial Communities With the rapid expansion of industrial activities, the accumulation of heavy metals in the environment has become a serious threat to ecological security and public health. Rhizosphere microorganisms play a crucial role in supporting the growth and quality of medicinal plants by facilitating nutrient uptake and regulating hormonal balance. However, medicinal plants can absorb heavy metals from contaminated soils during growth, resulting in toxic metal accumulation in plant tissues and reduced efficacy of active compounds. At the same time, excessive heavy metal levels suppress rhizosphere microbial growth and activity, disrupt community structure and function, and weaken their beneficial interactions with plants. These processes collectively lead to soil fertility decline, hindered plant development, and compromised safety and quality of medicinal materials. This review systematically summarizes the mechanisms by which heavy metals affect medicinal plants and their rhizosphere microbiota, and highlights that future research should focus on elucidating these interactions, developing advanced remediation technologies, and establishing comprehensive monitoring systems for the quality and safety of medicinal plants, thereby providing a scientific basis for their safe utilization and quality improvement. Rhizosphere ; Heavy metals ; Environmental remediation ; Soil quality ; Soil contamination ; Plant growth ; Medicinal plants Heavy Metals in Plants
Authors: Marta Loletti | Costanza Borghesi | Riccardo Rurali | Giacomo Giorgi
Source: The European Physical Journal B (article, 2025-04-01)
Field: Materials Science — Materials Chemistry

Structural and electronic properties of CaTiO3 polymorphs and 2D-derived systems: a theoretical investigation Abstract Oxide perovskite materials exhibit intriguing optical and electrical properties that are widely exploited in ceramics and optoelectronic devices. With particular emphasis on its application for photocatalysis, this study aims to theoretically characterize the structural and electronic features of CaTiO 3 , both as a stand-alone material and as a possible component in heterostructures. By means of a campaign of ab-initio calculations, we have revised the polymorphic nature of the material through an extensive analysis of its structural and electronic properties. Although standard DFT clearly confirms its intrinsic underestimation in predicting the excited state properties, by applying the recently introduced DFT $$-\frac{1}{2}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mo>-</mml:mo> <mml:mfrac> <mml:mn>1</mml:mn> <mml:mn>2</mml:mn> </mml:mfrac> </mml:mrow> </mml:math> method to the bandgap and dispersion calculations, we find very good agreement with experimental reported data. Finally, we include the investigation of dimensionally reduced CaTiO 3 -based surfaces and nanosheets, opening the way to interesting possibilities for additional novel supports and photocatalysts with unique features. Graphical abstract Materials science ; Crystallography ; Chemistry Electronic and Structural Properties of Oxides ; Ferroelectric and Piezoelectric Materials ; Magnetic and transport properties of perovskites and related materials
Authors: Maximilian E. Blaha | Anish Das | Detlev Belder
Source: Analytical and Bioanalytical Chemistry (article, 2025-02-03)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Requirements for fast multianalyte detection and characterisation via electrochemical-assisted SERS in a reusable and easily manufactured flow cell Surface-enhanced Raman spectroscopy (SERS) is a highly sensitive analytical technique that captures vibrational spectra of analytes adsorbed to rough coin metal surfaces with remarkable signal intensities. However, its wider application is limited by challenges in substrate range, quantification, and the disposable nature of SERS substrates partly due to irreversible analyte adsorption-commonly referred to as the 'memory effect'. Overcoming these limitations and achieving real-time analysis in flow-through systems remains a key challenge for the advancement of SERS. This study presents a SERS flow cell incorporating an Ag-based SERS substrate and a Pt counter-electrode, enabling the investigation of how electrochemical methods can address existing challenges. Our approach demonstrates that signal intensities can be both enhanced and spectroelectrochemically modified. Additionally, the combination of constant solvent flow and electrochemical potentials enhances the longevity of the SERS substrate, facilitating multianalyte measurements while mitigating the memory effect. Key parameters have been systematically studied, including SERS substrate materials (silver and copper), solvents, buffers, supporting electrolytes, and electrochemical protocols. We achieved consistent and reproducible electrochemical tuning of SERS signals by using halogen-free electrolytes in polar solvents commonly used in techniques like HPLC. The versatility of the system was validated through the analysis of several model compounds and the sequential detection of multiple analytes. We also successfully applied the system to detect and characterise contaminants and pharmaceuticals, highlighting its potential for a wide range of analytical applications. Analyte ; Substrate (aquarium) ; Nanotechnology ; Electrolyte ; Electrochemistry ; Raman spectroscopy ; Chemistry ; Materials science ; Electrode ; Analytical Chemistry (journal) ; Chromatography Gold and Silver Nanoparticles Synthesis and Applications ; Electrochemical Analysis and Applications ; Biosensors and Analytical Detection
Authors: M.H.B.M. Shariff
Source: Scientific Reports (article, 2025-07-02)
Field: Materials Science — Materials Chemistry

On the second gradient nonlinear spectral constitutive modelling of viscoelastic composites reinforced with stiff fibers General novel nonlinear second-gradient spectral constitutive models for rate dependent fiber-reinforced viscoelastic solids that consider bending stiffness are developed. The constitutive models are characterized by spectral invariants, each with a clearer physical meaning compared to the classical invariants. Hence, they are experimentally useful if a rigorous experimental curve fitting exercise is used to obtain a specific form of free energy function. The number of complete-irreducible-minimal spectral invariants is significantly less than the number of 'classical' complete-irreducible invariants given in the literature, and hence modelling complexity is drastically reduced when a spectral technique is used. Our spectral approach in this paper is different from the classical invariant approach that have been done in the last decades regarding nonlinear solid mechanics. A detailed proof to show that the spherical part of the couple stress is just a Lagrange multiplier, is given. Results for pure bending and, the extension and inflation of a solid cylinder, that could be useful for experiments and numerical validations, are given. Viscoelasticity ; Composite material ; Materials science ; Nonlinear system ; Constitutive equation ; Structural engineering ; Physics ; Finite element method ; Engineering Nonlocal and gradient elasticity in micro/nano structures ; Composite Structure Analysis and Optimization ; Elasticity and Wave Propagation