jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Takahiro Morishita | Hideki Ikeda | Nozomu Suzuki | Toyoko Suzuki | Hideto Minami
Source: Next Materials (article, 2025-11-20)
Field: Materials Science — Materials Chemistry

Morphology control of poly(methyl methacrylate) particles via seeded dispersion polymerization Nonspherical polymer particles have been studied for several decades because their properties, such as mechanical and optical properties, differ from those of spherical particles. Their potential in advanced applications has continued to drive interest in developing shape-controlled synthesis methods. In this study, we investigated the shape control of poly(methyl methacrylate) (PMMA) particles during seeded dispersion polymerization (SDP) of styrene using PMMA as seed particles in the presence of various hydrocarbons. By systematically varying the polymerization temperature ( T r ) and hydrocarbon type, we successfully fabricated PMMA particles with diverse morphologies, specifically golf ball-like, bowl-like, and barrel-like structures. Results revealed that the difference between T r and the glass transition temperature ( T g ) of the seed particles ( T r − T g ) plays a critical role in determining the particle shape. Furthermore, an index was formulated based on Hansen solubility parameters to quantify the affinity differences between the seed and second polymers for the medium, which helped explain the behavior of the second polymer domain during polymerization. The use of a hydrophilic initiator suppressed the submergence of domains into the seed particle, facilitating the formation of polyhedral and disk-like particles. This paper contributes to the development of a generalized strategy for the synthesis of shape-controlled nonspherical polymer particles via SDP. Dispersion polymerization ; Polymer ; Polymerization ; Dispersion (optics) ; Seeding ; Particle (ecology) ; Particle size ; Monomer ; Morphology (biology) Pickering emulsions and particle stabilization ; Advanced Polymer Synthesis and Characterization ; Block Copolymer Self-Assembly
Authors: Arindam Mondal | Arnab Mukherjee | Swadesh R. Bose | Hemanta Dey | P Barman
Source: International Journal of Pharmaceutical Research and Development (article, 2025-07-01)
Field: Materials Science — Materials Chemistry

Biogenic nanoparticles as multifunctional tools: From microplastic-driven atheroma insights to agricultural productivity and biofilm management Biogenic nanoparticles, which are made from microorganisms and plant-derived biomolecules, are transforming sustainable nanotechnology by offering multifunctional and eco-friendly solutions for a range of industries. By removing hazardous chemicals and high energy requirements, these biologically produced nanoparticles outperform traditional chemical and physical synthesis methods, leading to enhanced biocompatibility and customized surface functions. Through quorum sensing interference, oxidative disruption, and extracellular matrix disintegration, their physicochemical plasticity contributes to creative biofilm management while enabling tailored treatments in agriculture that improve nutrient efficiency, resilience, and disease suppression. Additionally, new connections between environmental health and nanotechnology show potential in treating diseases caused by microplastics. Biogenic nanoparticles may have diagnostic, degradative, and therapeutic uses to reduce the dangers associated with microplastics, which are linked to the development of arterial plaque (atheroma). This review critically evaluates the safety, scalability, and environmental impact issues while thoroughly examining synthesis methods, structure-function correlations, and a wide range of applications. Biogenic nanoparticles are emerging as important tools to solve urgent issues in food systems, infectious disease control, and vascular illnesses connected to microplastics by combining nanobiotechnology, plant-microbe ecology, and biomedical science. Biofilm ; Nanoparticle ; Crop productivity ; Human health ; Biocompatibility ; Quorum sensing ; Hazardous waste Nanoparticles: synthesis and applications ; Nanocomposite Films for Food Packaging ; Microplastics and Plastic Pollution
Authors: Simone Pintér | Nina Straßner | Daniel Krappmann | Erik J. Schulze | Andreas Hirsch
Source: Chemistry - A European Journal (article, 2025-10-24)
Field: Materials Science — Materials Chemistry

Advancing Bidirectional Photoswitching of Norbornadienes: Exclusively Light‐Induced Interconversion of <i>Imide</i> ‐ and <i>Ortho</i> ‐Connected Norbornadiene‐Perylene Diimide Hybrids The norbornadiene/quadricyclane (NBD/QC) photoswitch is a promising candidate for molecular solar energy storage. Isomerization to the energy-storing, metastable QC occurs upon UV light irradiation, while the back-switching can be triggered in various ways. However, inducing complete, on-demand energy release across multiple switching cycles remains a significant challenge in molecular solar thermal (MOST) research. We demonstrate the implementation of perylene diimide (PDI) as covalently connected, photoactive redox-catalyst to enable NBD regeneration upon 475 nm irradiation. We investigated the NBD/QC interconversion of several imide- and ortho-connected NBD-PDI hybrids upon irradiation at 310 nm and 475 nm, revealing that the connection position on PDI only minimally affects the interconversion efficiency. Concentration-dependent studies identified an alternative intermolecular back-isomerization mechanism in addition to the previously known intramolecular pathway, for which adequate flexibility of the linker proved crucial for effective back-isomerization to NBD. This study advances the exclusively photoinduced isomerization of the NBD/QC system within novel NBD-PDI dyads, establishing a framework for the targeted manipulation of NBD hybrids with potential application in energy storage. The presented switches operate independently, without the need for further additives to facilitate interconversion, which renders them promising candidates for molecular solar energy storage research. Photoswitch ; Diimide ; Isomerization ; Perylene ; Molecular switch ; Intramolecular force ; Photoisomerization ; Linker Photochromic and Fluorescence Chemistry ; Porphyrin and Phthalocyanine Chemistry ; Photochemistry and Electron Transfer Studies
Authors: Michael R. Bull | Rachel C. Huber | Ping Yu | Tanner J. Finney | Noah Felvey | Paul Chow | Yuming Xiao | Tonya L. Kuhl | Erik B. Watkins
Source: Journal of Non-Crystalline Solids (article, 2025-03-04)
Field: Materials Science — Ceramics and Composites

Probing the high-pressure densification of amorphous silica nanomaterials using SBA-15: An investigation into the paradoxical nature of the first sharp diffraction peak Nanomaterials ; Amorphous solid ; Amorphous silica ; Materials science ; Diffraction ; Nanotechnology ; High pressure ; Chemical engineering ; Crystallography ; Engineering physics ; Chemistry ; Optics ; Physics ; Engineering Glass properties and applications ; High-pressure geophysics and materials ; Mesoporous Materials and Catalysis
Authors: Jeny C. Nitola | Lucia M. Moreno | Óscar Julio Medina Vargas
Source: Waste and Biomass Valorization (article, 2025-07-23)
Field: Materials Science — Biomaterials

Application of Magnetized Cacti Biomass as Flocculants in Water Treatment Abstract Access to adequate quality water in certain rural areas presents a significant research challenge. This study investigates four magnetized materials with potential application in water treatment as alternatives to conventional flocculants based on iron and aluminum salts. Mucilage and cellulose were extracted from the cacti biomass of Stenocereus griseus and Melocactus sp. These biopolymers were subsequently magnetized via crosslinking with magnetite (Fe₃O₄). Jar tests were conducted on natural water samples from selected sources to determine the efficacy and optimal dosage of the resulting bioflocculants for turbidity removal. The physicochemical and magnetic properties of the materials were characterized using Fourier transform infrared spectroscopy (FTIR), vibrating sample magnetometry (VSM), X-ray diffraction (XRD), and scanning electron microscopy (SEM). Performance was assessed by evaluating zeta potential (ζ) values, the percentage reduction in turbidity, and achievement of nephelometric turbidity units (NTU) ≤ 2, conforming to Colombian drinking water standards. Results (removal efficiencies of 98.15% for turbidity, 80.5% for total suspended solids (TSS), and 60.8% for chemical oxygen demand (COD), indicate that magnetic modification of biopolymers, particularly mucilage, offers a promising approach for reducing water turbidity. Furthermore, the influence of pH on the flocculation process was investigated, revealing enhanced performance under acidic conditions. This work has significant implications for the future application of magnetic materials in water treatment and may contribute to addressing water quality challenges in rural communities. This research contributes to the broader pursuit of solutions for social, economic, and environmental issues facing the country, aligning with the United Nations Sustainable Development Goals (SDGs) of the 2030 Agenda. Graphical Abstract Flocculation ; Biomass (ecology) ; Environmental science ; Waste management ; Environmental engineering ; Engineering ; Biology ; Agronomy Advanced Cellulose Research Studies ; Electrohydrodynamics and Fluid Dynamics
Authors: Eylia Abbas Jafri | Atif Shazad | Ifrah Asif | Arqam Ahmed Hashmi | Umer Nadeem Abdullah
Source: Memoria Investigaciones en Ingeniería (article, 2025-12-09)
Field: Materials Science — Polymers and Plastics

Investigating Tensile &amp; Impact Properties of Recycled Polypropylene, Polyvinyl Chloride, Polyamide &amp; Polyethylene Although Pakistan has an abundance of natural resources, it also faces a significant challenge with plastic waste, producing 3.3 million tons annually. This environmental issue demands immediate action, especially due to the increased demand for personal protective equipment (PPE) during the pandemic. Our research aims to make thermoplastics more environmentally friendly by focusing on the properties of recycled polypropylene (PP) enhanced with elastomers and calcium carbonate. Despite a modest loss in tensile properties and impact strength, recycled PP retains key characteristics. Adding calcium carbonate notably increases density, from 908 kg/m³ for stabilized recycled PP to 1029 kg/m³ for a 20% calcium carbonate blend. The total deformation analysis of both recycled and virgin PVC further supports our findings, revealing higher deformation in recycled PVC, which indicates its superior ductility. Additionally, this study examined the effects of aramid short fibers and thermoplastic polyurethane (TPU) additives on recycled polyamide-12 (PA-12). The inclusion of TPU decreased the modulus while increasing tensile strain and energy at break, whereas aramid fibers increased the modulus. Deformation analysis revealed significant strain concentrations in the central sections of these specimens, underscoring the impact of these additives on mechanical behavior. For example, PA-12 with 20% TPU exhibited higher maximum deformation, reflecting its enhanced tensile properties. Moreover, our deformation studies on Poly Butylene terephthalate with 0% HDPE and a blend containing 10% HDPE demonstrated the influence of HDPE content on elastic strain distribution and total deformation. The findings showed that the central region experiences substantial elastic deformation, which is critical for understanding stress distribution in these materials. High-density polyethylene ; Ultimate tensile strength ; Polypropylene ; Polyethylene ; Calcium carbonate ; Deformation (meteorology) ; Thermoplastic polyurethane ; Thermoplastic elastomer ; Polyamide Polymer Science and PVC ; Polymer crystallization and properties ; Microplastics and Plastic Pollution
Authors: Sara Jonsdottir Glaser | Marwa Faisal | Andreas Blennow | Leila Lo Leggio
Source: International Journal of Biological Macromolecules (review, 2025-11-07)
Field: Materials Science — Biomaterials

Additives as external plasticizers in starch-based bioplastics - towards improving the properties of food packaging: A review The environmental burden of petroleum-based plastics, especially in single-use packaging, has driven the search for sustainable, bio-based alternatives. Starch-based materials are promising due to their abundance, low cost, and biodegradability. However, native starch lacks the mechanical and barrier properties required for packaging applications, necessitating the use of plasticizers and additives. This review critically evaluates starch as the primary biopolymer and its interactions with various external plasticizers, aiming to enhance its physicochemical properties aimed for potential applications in food packaging. Despite extensive research on starch modification and composite formulation, the molecular mechanisms by which starch interacts with plasticizers, and how this influences the material properties remain poorly understood. Addressing this gap, the review categorises plasticizers into distinct chemical classes: polyols, saccharides, acids, esters, salts, amines/amides and oils, and examines how each group affects the starch polymer at the molecular level. The plasticising effects vary depending on the nature of hydrogen bonding with the polar groups of starch, even among highly compatible plasticizers including polyols, saccharides and amines/amides. Essential oils, though limited in direct interaction, enhance water resistance and antimicrobial properties. Citric acid functions as a multifunctional additive with notable plasticising effects. Salts, particularly deep eutectic solvents (DES) and ionic liquids, present novel solutions for developing starch-based materials. Key challenges such as plasticizer migration, water sensitivity, and limited mechanical strength are discussed, alongside considerations of toxicity, cost, and scalability. By mapping structure-function relationship in starch-plasticizer systems, this review supports the advancement of fully bio-based, biodegradable packaging materials with optimised performance. Plasticizer ; Starch ; Bioplastic ; Biopolymer ; Polymer ; Food packaging ; Composite number Nanocomposite Films for Food Packaging ; Polymer Science and PVC ; biodegradable polymer synthesis and properties
Authors: Tan Youwei | Andreevich Korotkevich Mikhail
Source: Theory and Practice of Science and Technology (article, 2025-01-01)
Field: Materials Science — Materials Chemistry

Study on Anti-corrosion Technology and Long-term Service Performance of Offshore Wind Power Cable As a vital component of clean energy, the long-term reliability of offshore wind power cable systems directly impacts the operational efficiency and economic benefits of entire wind farms. This study systematically analyzes the effects of multiple corrosion mechanisms—including seawater corrosion, chloride ion erosion, and microbial corrosion—on cable performance under complex marine environments. By establishing a corrosion kinetics model for offshore wind power cables, the research reveals quantitative relationships between environmental factors (temperature, salinity, pH, dissolved oxygen) and corrosion rates. The study developed a multi-layer composite anti-corrosion technology system, incorporating key innovations such as modified polymer anticorrosive coatings, optimized cathodic protection system design, and improved sacrificial anode material formulations. A long-term service performance evaluation system was established, utilizing accelerated aging tests, electrochemical impedance spectroscopy (EIS) measurements, and mechanical property assessments to evaluate cable performance degradation over a 25-year design life.Results—demonstrate that the developed composite anti-corrosion technology reduces corrosion rates by over 65%, maintains insulation impedance retention rates above 85%, and preserves mechanical strength retention rates exceeding 90%. Offshore wind power ; Cathodic protection ; Corrosion ; Submarine pipeline ; Reliability (semiconductor) ; Anode ; Dielectric spectroscopy ; Seawater ; Wind power High voltage insulation and dielectric phenomena ; Electrical Fault Detection and Protection ; Mechanical stress and fatigue analysis
Authors: American Welding Society | Y. NORMAN ZHOU
Source: Welding Journal (article, 2025-07-01)
Field: Materials Science — General Materials Science

Nanojoining — A New Frontier in Welding and Joining of Materials This paper, adapted from the 2024 Comfort A. Adams Lecture presented at the American Welding Society’s annual convention on October 14, 2024, in Orlando, Fla., provides an overview of the emerging field of nanojoining, a technology poised to become a cornerstone in manufacturing nano-devices and systems. This review first surveys nanojoining processes developed over the past two decades and then focuses on femtosecond laser nanowelding, covering process physics and materials science issues. Finally, the review suggests future research directions, addressing engineering challenges and fundamental questions in nanojoining. Welding ; Frontier ; Engineering ; Engineering drawing ; Mechanical engineering ; Metallurgy ; Forensic engineering ; Materials science ; History Material Properties and Applications ; Metal and Thin Film Mechanics ; Advancements in Materials Engineering
Authors: Christian Pablo Romero | Claudio Ramirez-Mora | Rodolfo Salazar | Cristobal Fernandez | Cristian Acevedo | Christian Orellana | Maria Abellan | David Aliaga
Source: Electronic Journal of Biotechnology (article, 2025-12-04)
Field: Materials Science — Materials Chemistry

Low-cost hybrid copper–carbon nanotube coating with antimicrobial properties in ambient conditions Low-cost hybrid copper–carbon nanotube coating with antimicrobial properties in ambient conditions The development of bactericidal surfaces using nanotechnology has gained traction in high-tech sectors due to their effectiveness against pathogens. However, widespread adoption in low-income regions remains limited by the high cost of materials such as copper nanoparticles and the need for specialized application personnel. This study aims to develop a cost-effective bactericidal coating that minimizes nano-copper usage while maintaining strong antimicrobial performance and practical applicability in resource-limited environments. A polymer-based coating incorporating ≤3 wt% nano-copper and carbon nanotubes was formulated to enhance conductivity and mechanical stability. The fabrication process was optimized for on-site application under ambient conditions. Scanning Electron Microscopy (SEM) revealed a uniform surface distribution of nano-copper particles. Bactericidal activity tests confirmed efficacy against Escherichia coli , Listeria monocytogenes , and Salmonella spp. Techno-economic analysis indicated that the coating could be integrated into existing surface finishing systems at an incremental cost of 2.6–3.5 USD per gallon. This work demonstrates the feasibility of producing and applying affordable nano-based bactericidal coatings under real-world conditions. The approach provides a practical pathway for implementing antimicrobial surface technologies in low-resource settings. Although the present study focused on wood substrates, future research should assess performance on diverse materials to broaden applicability. The combination of cost-effectiveness, efficacy, and scalability underscores the potential for both commercial adoption and significant public health benefits. How to cite: Romero CP, Ramirez-Mora C, Salazar R, et al. Low-cost hybrid copper–carbon nanotube coating with antimicrobial properties in ambient conditions. Electron J Biotechnol 2026;79. https://doi.org/10.1016/j.ejbt.2025.100700 . Coating ; Antimicrobial ; Carbon nanotube ; Fabrication ; Nanotube ; Listeria monocytogenes Nanoparticles: synthesis and applications ; Antimicrobial agents and applications ; Nanomaterials and Printing Technologies
Authors: T. Fournier | Samir El Masaoudi | Iann C. Gerber | B. Lassagne | C. Crespos | Jean‐Marc Leyssale | Kelvin Cruz | Germercy Paredes | Noeliarinala Felana Andriambelaza | Marc Monthioux | Pascal Puech | Fabrice Piazza
Source: Carbon Trends (article, 2025-07-31)
Field: Materials Science — Materials Chemistry

Hydrogenation and etching of single-layer graphene during exposure to atomic hydrogen Opening a band gap in graphene is essential for its integration into electronic devices, but remains a major challenge. Hydrogenation offers a promising route, though the process is complicated by competing mechanisms such as hydrogen desorption and unwanted etching. Here, we investigate one-sided hydrogenation of monolayer graphene on SiO₂/Si substrates at temperatures below ∼100 °C, using a hot-filament-assisted method compatible with semiconductor processing. Our results reveal a regime where hydrogen chemisorption and hole formation (etching) coexist. Dehydrogenation experiments and first-principles calculations indicate that hydrogen atoms preferentially cluster on neighboring carbon sites, potentially leading to dome-like lattice distortions. While hydrogen incorporation is favored at these sites, our simulations suggest that the resulting stresses alone are insufficient to cause carbon–carbon bond breakage. Instead, etching likely requires the presence of energetic atomic hydrogen. These findings help clarify the interplay between hydrogenation and etching and provide guidance for controlled graphene functionalization in device applications. Graphene ; Etching (microfabrication) ; Hydrogen ; Materials science ; Layer (electronics) ; Nanotechnology ; Chemistry ; Organic chemistry Graphene research and applications ; Diamond and Carbon-based Materials Research ; Plasma Diagnostics and Applications
Authors: Srijan Kumar Sahu | Prateek Gupta | Ayush Keshri Keshri | Durgeshwari Sahu Sahu | Vinay Sagar Verma Verma
Source: Journal of Pharmacology Genetics and Molecular Biology (article, 2025-12-24)
Field: Materials Science — Biomaterials

Advances in Nanomedicine for Treatment of Neurological Disorders Nanomedicine has become a revolutionary approach to the management of neurological conditions, providing the innovative means of addressing the flaws of the traditional treatment methods. The review concentrates on preclinical animal research, emphasizing on the progress of nanoparticles-based delivery systems, liposomes, micelles, dendrimers and nanogels, which have the potential to increase the drug transport across the blood-brain barrier, specific brain targeting, and controlled, sustained delivery of therapeutic agents. The main results indicate that functionalized nanoparticles are able to suppress neuroinflammatory signals, eliminate reactive oxygen species, and prevent neuroprotection and neuroregeneration, and thus enhance the cognitive and motor outcomes in models of Alzheimer disease, Parkinson disease, stroke, and traumatic brain injury. Although these are encouraging findings, there are still issues to deal with, including long-term safety, biocompatibility, scalability of synthesis, and translational feasibility, which means that further studies must be performed to maximize the effectiveness and enable a clinical implementation. Although, comprehensive, preclinical data highlights the potential of nanomedicine as a means of transforming treatment approaches to central nervous system disease so that more specific, effective, and safer treatment approaches can be provided in the future. Nanomedicine ; Neuroprotection ; Disease ; Drug delivery ; Neuropharmacology ; Parkinson's disease ; Drug ; Neuroinflammation Nanoparticle-Based Drug Delivery ; Dendrimers and Hyperbranched Polymers ; Advanced Drug Delivery Systems