jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Nguyen Phuc An Khang | Joohoon Kim
Source: Molecules (article, 2025-12-12)
Field: Materials Science — Materials Chemistry

Co-Reactant Engineering for Au Nanocluster Electrochemiluminescence Co-reactants are essential in co-reactant-based electrochemiluminescence (ECL) systems because they generate reactive intermediates that can oxidize or reduce ECL luminophores, thereby driving ECL emission. In the context of ECL, gold nanoclusters (Au NCs) have emerged as innovative luminophores, owing to their tunable electronic structures and excellent biocompatibility. However, their efficiency in ECL applications is often compromised by challenges such as limited excited-state generation and non-radiative losses. To tackle these practical challenges, advanced co-reactant engineering strategies have been developed to improve the performance of Au NCs in ECL systems. This review begins with a brief overview of the mechanisms of ECL. Subsequently, a systematic overview of various co-reactant engineering strategies is presented, including: (1) using innovative co-reactants to replace traditional ones due to their lower toxicity and better biocompatibility; (2) applying co-reaction accelerators to reduce the onset potential and improve the production of reactive intermediates from co-reactants; (3) combining co-reactants with luminophores or creating integrated nanostructure assemblies of co-reactants, co-reaction accelerators, and luminophores to achieve shorter electron transfer paths and reduced energy loss for stable high-intensity ECL emission; (4) utilizing host-guest strategies that encapsulate co-reactants within cavities to stabilize radical intermediates and minimize environmental quenching. This review provides a comprehensive overview of recent developments in co-reactant engineering for Au NCs-based ECL systems, thereby encouraging further exploration and understanding of these systems and expanding their potential applications. Electrochemiluminescence ; Nanoclusters ; Context (archaeology) ; Energy transfer ; Electron transfer ; Molecular engineering Nanocluster Synthesis and Applications ; Advanced biosensing and bioanalysis techniques ; Gold and Silver Nanoparticles Synthesis and Applications
Authors: H. Sheth | C.M. Jha
Source: Journal of Applied Biology & Biotechnology (article, 2025-01-01)
Field: Materials Science — Materials Chemistry

Eco-friendly fabrication of silver nanoparticles from the red macroalga Scinaia moniliformis and evaluation of their biomedical activities The present study reports the green synthesis of silver nanoparticles (AgNPs) using the red macroalga Scinaia moniliformis J. Agardh, an underexplored marine species rich in bioactive compounds. This eco-friendly method utilized the aqueous algal extract as a natural hydrophilic reducer and stabilizer. A visible color shift from light yellow to dark brown signified AgNP formation, which was further confirmed by characterization techniques including UV– Vis spectroscopy, FTIR, XRD, and TEM-SAED. A distinct surface plasmon resonance peak at 437 nm confirmed nanoparticle synthesis, while XRD validated their crystalline nature. FTIR indicated the presence of phenolics, proteins, and other biomolecules involved in reduction and capping. TEM analysis revealed predominantly spherical nanoparticles with an average size of 24.03 nm. Functionally, the AgNPs displayed strong antibacterial activity against both Gram-positive and Gram-negative bacteria, with the highest inhibition against Escherichia coli and Shigella dysenteriae. They also exhibited potent, dose-dependent antioxidant activity (IC?? = 41.09 ± 0.35 μg) and significant cytotoxicity against MCF-7 breast cancer cells (IC?? = 51.49 ± 0.45 μg). These findings underscore the novelty of using S. moniliformis for nanoparticle synthesis and highlight the broad biomedical applicability of the resulting AgNPs in antimicrobial and anticancer therapeutics. Silver nanoparticle ; Surface plasmon resonance ; Nanoparticle ; Cytotoxicity ; Nanobiotechnology ; Biomolecule ; Antibacterial activity ; Aqueous solution Nanoparticles: synthesis and applications
Authors: A.K.M. Nazrul Islam | Md. Nizam Uddin | Asib Ridwan | Asif Karim Neon | Md. Fozle Rab
Source: Frontiers in Soil Science (article, 2025-12-02)
Field: Materials Science — Materials Chemistry

Engineering nanoparticles (ENPs) in aquatic environments and soil-plant ecosystems: transformation, toxicity, and environmental challenges The ever-increasing use of diverse types of engineered nanoparticles (ENPs) in industries, medicine, and consumer products has resulted in their uncontrolled release into aquatic environments and soil-plant systems. ENPs may transform and release toxic by-products upon release, raising concerns about their environmental behavior and potential risks. However, accurately measuring the concentrations of ENP in these ecosystems remains challenging. Recent studies have highlighted the toxic effects of ENPs on various organisms, but assessing the risk in aquatic and soil-plant systems consists of a critical issue in nanoecotoxicology. ENPs interact with various environmental materials like organic matter, soil, sludge, and other pollutants. These interactions of ENPs can form complex assemblies, which may alter the toxicity and environmental fate. This study examines the interactions of ENPs in aquatic and soil-plant environments, focusing on their transformation, toxicity, and ecological impact. Identification of the knowledge gaps related to the ENP interaction and outlining the directions for future consideration for a better understanding of the environmental risks have been explained in this study. Additionally, the research addresses the challenges of evaluating nanotoxicity and highlights the need for improved environmental regulations and assessment techniques for engineered nanomaterials. Nanotoxicology ; Aquatic ecosystem ; Identification (biology) ; Environmental risk assessment ; Microplastics ; Aquatic environment ; Environmental systems ; Organic chemicals Nanoparticles: synthesis and applications ; Heavy metals in environment ; Microplastics and Plastic Pollution
Authors: Lei Dong | Xiaojie Sun | Xiguang Chen
Source:  (article, 2025-11-25)
Field: Materials Science — Biomaterials

not-yet-known not-yet-known not-yet-known unknown Fish Scales: A Multifunctional Biomaterial from Nature Fish scales, as products of long-term natural evolution, are biomaterials featuring a intricate integration of inorganic and organic components, exhibiting species-specific multi-layered micro-nano structures. Owing to its characteristic gradient mineralization, the scale is hard on the outside but gets progressively softer inside, making for a smooth shift from rigid to flexible from the outer layer inward. This gradient structure, extending from the surface to the interior, provides important inspiration for the development of novel flexible biomimetic protective materials. Beyond structural design inspiration, the primary components of fish scales (e.g., hydroxyapatite (HAp), and collagen) possess excellent biocompatibility and multifunctionality, endowing them with broad prospects across diverse fields including biomedicine, environmental remediation, energy storage, cosmetics, food, and agriculture. However, transforming this potential into practical use is challenged by the lack of standardized processing methods and a limited understanding of how their structure affects their properties. This review comprehensively summarizes recent advances in fish scales research, with a focus on their role as biomimetic models and functional applications, and critically discusses the challenges and future opportunities toward industrialization. Fish <Actinopterygii> ; Biomimetic materials ; Biomimetics ; Biocompatibility ; Biomaterial ; Natural (archaeology) ; Scale (ratio) Calcium Carbonate Crystallization and Inhibition ; Collagen: Extraction and Characterization ; Polymer Surface Interaction Studies
Authors: Jianhe Xie | Jia Ying Xin | Sun Lina | Tianyu Cui | Haixin Bi | Yan Wang | Jianxiang Zhang
Source: Frontiers in Microbiology (review, 2025-11-14)
Field: Materials Science — Biomaterials

The role of biological nitrogen fixation in polyhydroxybutyrate production from methane by methane-oxidizing bacteria: a review of metabolic routes and yield enhancement In recent years, the synthesis of Polyhydroxybutyrate (PHB) using methane-oxidizing bacteria (MOB) to convert one carbon and N<sub>2</sub> resources has received much attention. In addition, nitrogen fixation by nitrogen gas (N<sub>2</sub>) has an effect on the metabolic pathways of MOB. Although progress has been made in the basic metabolic pathways and the role of key enzymes, there are still many challenges, such as explorating the synergistic mechanism of one carbon and nitrogen and how to optimize the cultivation conditions to increase yield and reduce costs. This paper is concerned with the biological characteristics of methanogens and their role in the metabolism of one carbon and N<sub>2</sub> resources. In addition, it introduces the optimization of their PHB synthesis capacity by new technologies in the field of metabolic engineering. The aim of the paper is to provide a theoretical basis for solving plastic pollution and realizing renewable utilization of resources. Polyhydroxybutyrate ; Nitrogen fixation ; Nitrogen ; Nitrogen cycle ; Carbon fixation ; Carbon fibers ; Metabolic pathway ; Yield (engineering) ; Renewable resource biodegradable polymer synthesis and properties ; Microbial metabolism and enzyme function ; Microbial Metabolic Engineering and Bioproduction
Authors: Paramita Biswas | Paramita Bhowmik | Malda Krishi Vigyan Kendra, Block Seed Farm, Uttar Banga Krishi Viswavidyalaya, Malda, West Bengal- 732205, India | Bhanumati Sarkar | Arindam Chakraborty | Souvik Sahoo
Source: International Journal of Engineering and Information Management (review, 2025-01-15)
Field: Materials Science — Materials Chemistry

Nanofertilizers: Transformative Solutions for Sustainable Agriculture- A Comprehensive Review Scientists and farmers are facing numerous, unprecedented challenges for sustainable agriculture. Innovative ideas, technologies and tools became very essential to tackle this problem. Development of new emerging fertilizers i.e., nanofertilizers (NFs) by using nanotechnology is a potentially effective option to meet future demands. Site-targeted controlled delivery of nanofertilizers which have high nutrient usage efficiency increases the efficiency of inputs and minimizes relevant losses which ultimately increases crop protection and reduces cultivation cost. Optimization and selection of suitable nanofertilizers are essential because an overdose of nanofertilizers harms the growth and yield of crops. Conventional fertilizer sources pollute water bodies through nutrient run-off, deplete the soil structure and contribute to the emission of greenhouse gases. NFs provide a realistic solution in the way of targeted nourishment and minimal disruption to the environment. Taking that into account, this review provides an extensive analysis of the literature on the state of nanofertilizers at the present moment and their advantages over traditionally used fertilizers, new methods of creating NFs, their potential applications in agriculture, etc. Various details regarding the function and the application of NFs as well as a mechanism at a nanoscale level that explains how these structures contribute to the delivery and uptake of nutrients in plants are given. Such approaches include the prospects of further research the creation of synthesis of NFs with low cost, the investigations of field experiments, and the profound assessment of the risks connected with the application of NFs. Transformative learning ; Sustainable agriculture ; Agriculture ; Environmental ethics ; Sociology ; Political science ; Environmental science ; Geography ; Philosophy ; Archaeology ; Pedagogy Nanoparticles: synthesis and applications
Authors: Qianru Li | Suming Jing | Liping He | Xiang‐he Kong | Wenbo Lan | Xiaofeng Wang
Source: Frontiers in Chemistry (article, 2025-09-08)
Field: Chemistry — Spectroscopy

Investigating the heavy metal (Hg, Cd, Pb, Cr, As) binding affinity and sensing capability of 2-((2-(hydroxymethyl)quinolin-8-yl)oxy)-N-(quinolin-8-yl)acetamide Addressing severe environmental and health threats posed by mercury, cadmium, lead, chromium, and arsenic ("five toxic" heavy metals), this study employs density functional theory (DFT) calculations and molecular simulations to investigate the capture and detection mechanisms of the dual-fluorescent probe 2-((2-(hydroxymethyl)quinolin-8-yl)oxy)-N-(quinolin-8-yl)acetamide in both water solvent and dimethyl sulfoxide (DMSO). Key findings indicate that the probe forms highly stable, planar complexes with arsenic, lead, and chromium, exhibiting significant red-shifts in UV absorption bands and enhanced fluorescence intensity-strongest for arsenic in water solvent, while arsenic/chromium complexes show markedly increased fluorescence in DMSO. This work demonstrates the probe's selective recognition of As, Pb, and Cr, with solvent polarity modulating detection signals, providing a novel theoretical framework for monitoring and remediating heavy metal pollution. Arsenic ; Fluorescence ; Density functional theory ; Metal ; Solvent ; Polarity (international relations) ; Absorption (acoustics) ; Selectivity Molecular Sensors and Ion Detection ; Electrochemical Analysis and Applications ; Heavy Metal Exposure and Toxicity
Authors: Selvin P. Thomas
Source: Journal of King Saud University - Engineering Sciences (review, 2025-08-01)
Field: Materials Science — Biomaterials

A brief review on extraction and characterization of nanocellulose from date palm biomass Abstract Developing value-added raw materials from agricultural waste is gaining momentum as it is useful on multiple grounds. Among the different materials developed nanocellulose has gained a lot of attention due to its exceptional properties which can be utilized to develop different devices. Nanocellulose from date palm waste materials has been studied by several research groups, especially in the Middle East and North Africa regions recently. This short review focuses on the extraction and characterization of nanocellulose derived from date palm, a readily available and renewable resource in this region. The review discusses various methods employed for the extraction and production of nanocellulose, including mechanical, chemical, and enzymatic processes. Key characterization techniques such as Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and transmission electron microscopy (TEM) are highlighted to elucidate the structural and morphological properties of nanocellulose. The findings underscore the potential of date palm-derived nanocellulose as a sustainable material for use in different areas. This review aims to provide a brief overview of the current advancements in the field of nanocellulose from date palm biomass. This review is essential because while nanocellulose offers tremendous potential as a renewable nanomaterial, the lack of standardized extraction and characterization methods leads to variability in product quality. By evaluating mechanical, chemical, and biological approaches across different date palm biomass sources, this work helps researchers optimize processes for high-performance nanocellulose while minimizing environmental impact. Additionally, it enables the reader to find out the latest reports in a nutshell which will help to bridge the gap between lab-scale studies and industrial adoption, offering clear pathways for commercialization. Nanocellulose ; Characterization (materials science) ; Biomass (ecology) ; Palm ; Extraction (chemistry) ; Environmental science ; Pulp and paper industry ; Nanotechnology ; Materials science ; Engineering ; Chemistry ; Biology ; Agronomy ; Chemical engineering ; Chromatography ; Cellulose ; Physics Advanced Cellulose Research Studies ; Nanocomposite Films for Food Packaging ; Polysaccharides and Plant Cell Walls
Authors: Ibrahim Assaf
Source: SPIRE - Sciences Po Institutional REpository (article, 2025-12-15)
Field: Chemistry — Organic Chemistry

Mécanisme et étude cinétique du procédé hétérogène par calorimétrie : Application à la polymérisation en miniémulsion La polymérisation en miniémulsion s'est imposée comme une technique polyvalente pour la production de polymères latex à morphologies contrôlées. Elle est employée dans l'administration de médicaments, l'encapsulation de colorants et de nanoparticules, ainsi que dans les systèmes polymères à haute teneur en solides. Son avantage réside dans son système unique de nucléation des gouttelettes agissant comme des nanoréacteurs. Ce système minimise le transfert de matière de monomère entre gouttelettes et permet un meilleur contrôle de la taille des polymères par rapport à la polymérisation en émulsion conventionnelle. Dans ce travail, nous avons étudié l'influence du tensioactif anionique SDS et des conditions de sonication sur les caractéristiques d’uneminiémulsion avant et après polymérisation. Nous avons également étudié l'influence de la concentration del’amorceur (KPS) et de la température de synthèse sur la vitesse globale de réaction. La vitesse globale est déterminée par le suivi de l’évolution de la puissance dégagée par le milieu réactionnel dans le réacteurcalorimétrique RC1 RT-Cal. Il permet également de mieux comprendre le mécanisme de formation des gouttelettes. Les résultats ont été comparés à ceux obtenus avec la polymérisation en émulsion conventionnelle dans des conditions opératoires similaires. Les résultats montrent une influence de la concentration en tensioactif non seulement sur la taille des gouttelettes, la stabilité cinétique, mais aussi sur la vitesse globale de réaction. Cependant, des concentrations élevées en tensioactifs entraînent un mécanisme de nucléation indésirable parallèlement à celui des gouttelettes. De plus, la taille finale du polymère en solution est insensible à la concentration de KPS, contrairement aux systèmes conventionnels, en raison du mécanisme de nucléation distinct entre les deux méthodes. La durée et l'amplitude de la sonication affecte également la stabilité des miniémulsions et la vitesse globale de réaction. Ceci est dû au phénomène de cavitation associé à la sonication. Nos résultats mettent en évidence l'interaction complexe entre les conditions de sonication et la concentration en tensioactifs pour obtenir un rapport gouttelette/polymère optimal Agrégation ; Decantation ; Homogeneous Advanced Polymer Synthesis and Characterization ; Synthesis and properties of polymers ; Polymer crystallization and properties
Authors: Birsen Sarıcı | Esra Altıntığ | Şükrü Karataş
Source: Sakarya University Journal of Science (article, 2025-06-19)
Field: Materials Science — Materials Chemistry

Investigation of Inhibition Effect on Pathogen Microorganisms by Adding NPAg to Activated Carbon Obtained by Activating Hazelnut Shell with ZnCl2 In this study, silver-coated activated carbon (NPAgAC) was obtained by adding nanoparticle silver (NPAg) to activated carbon (AC) produced from hazelnut shells by chemical activation and carbonization. SEM, FT-IR, and BET were evaluated. While the methylene blue (MB) number of the produced ACs was 490-499 mg/g, the MB numbers of NPAgAC were determined to be 421-453 mg/g. The iodine number of ACs was specified in the 1047-1612 mg/g range. The iodine numbers of NPAgACs were recorded in the 934-1022 mg/ g range. Additionally, EDS and XRD analyses were performed on all samples. Well, diffusion and spreading plate methods were used to control the antimicrobial properties of the produced NPAgAC. The study used Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) as pathogenic microorganisms. In addition, the antimicrobial properties of NPAgACs were investigated using the spread plate method at various times and temperatures to determine their effectiveness in inhibiting the growth of E. coli in polluted waters. Studies have shown that hazelnut shells are a suitable starting material for producing activated carbon, and that NPAgAC exhibits high antimicrobial properties with food safety. Methylene blue ; Carbonization ; Antimicrobial ; Activated carbon ; Nuclear chemistry ; Escherichia coli ; Chemistry ; Staphylococcus aureus ; Carbon fibers ; Microorganism ; Agar diffusion test ; Microbiology ; Materials science ; Adsorption ; Organic chemistry ; Bacteria ; Biology ; Biochemistry ; Composite material Nanoparticles: synthesis and applications ; Adsorption and biosorption for pollutant removal ; Carbon and Quantum Dots Applications
Authors: Mahyar Vefaghi | H. R. Rastegar Sedehi | Omid Ashkani
Source: Recent Progress in Materials (article, 2025-08-03)
Field: Materials Science — Materials Chemistry

Quantum Diamonds and the Future of Advanced Processors, Review on Benefits and Challenges Nowadays, the development of advanced processors plays a key role in the progress of humanity and the discovery of new sciences, and quantum computers play an essential role in this regard. In this regard, the development of new generation processors is necessary for the development of quantum computers. Quantum diamonds, with their astonishing properties, especially the presence of nitrogen-vacancy (NV) centers in their crystalline structure, are among the most advanced emerging technologies in the field of quantum information processing. These diamonds, due to the stability of their electron spin, the ability to operate at room temperature, and the possibility of high-precision quantum control, are considered an ideal option for the development of next-generation computer processors. Central processors based on quantum diamonds have high potential in increasing computational power, reducing energy consumption, and improving quantum communication capabilities. Today, the physical and functional properties of quantum diamonds, their advantages over other quantum computing platforms, and their potential applications in the next generation of quantum processors have attracted the attention of many researchers, and efforts to develop and update the related sciences are continuously underway. This article attempts to provide a narrative review of quantum diamonds and their role in new processors, and examines the benefits and challenges. Computer science ; Data science Diamond and Carbon-based Materials Research ; Laser-Ablation Synthesis of Nanoparticles ; Graphene research and applications