jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Rajapriya Andavar | Fei Cai | Iza Shahid | Uzair Ahmed Kolachi | Yanzhi Sun | Junqing Pan
Source: Carbon (article, 2025-08-23)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Tailoring pore structure and surface chemistry of bi-metallic MOF-derived porous carbon nanorods for high-performance supercapacitors and sodium-ion batteries Supercapacitor ; Nanorod ; Porosity ; Materials science ; Chemical engineering ; Sodium ; Carbon fibers ; Metal ; Ion ; Nanotechnology ; Electrochemistry ; Composite material ; Chemistry ; Electrode ; Composite number ; Metallurgy ; Organic chemistry ; Physical chemistry Supercapacitor Materials and Fabrication ; Advancements in Battery Materials ; Nanomaterials for catalytic reactions
Authors: Yuyin Du | Amit Ghosh | Paula C. P. Teeuwen | David J. Wales | Jonathan R. Nitschke
Source: Journal of the American Chemical Society (article, 2025-06-09)
Field: Chemistry — Organic Chemistry

Light-Driven Lithium Extraction from Mixtures of Alkali Cations Using an Azobipyridine Ligand Humanity's replacement of fossil-fuel energy with renewable electricity will require extensive deployment of lithium batteries, which necessitates an increase in the rate of production of this vital metal. Current extraction methods from brines and ores are very energy-intensive, as are recycling methods. Here we report a novel Li<sub>5</sub><b>L</b><sub>2</sub> sandwich structure in which five lithium ions are bound between the azobipyridine groups of two pentagonal ligands. The geometry of these ligands leads to the selectivity for binding Li<sup>+</sup> in the presence of Na<sup>+</sup> and K<sup>+</sup>. Upon illumination, the <i>trans</i>-azobipyridine moieties of the ligands isomerize to their <i>cis</i> form, promoting the release of free Li<sup>+</sup> as the sandwich comes apart. The selective complexation of Li<sup>+</sup>, and its photostimulated release, were used as the basis of a cycle for selectively extracting and releasing Li<sup>+</sup> ions from a mixture with Na<sup>+</sup> and K<sup>+</sup>. Solar energy may thus be used directly to purify this metal, which is essential for storing increasingly cheap electricity produced through renewable means. Chemistry ; Lithium (medication) ; Alkali metal ; Extraction (chemistry) ; Ligand (biochemistry) ; Selectivity ; Renewable energy ; Metal ; Catalysis ; Organic chemistry Supramolecular Chemistry and Complexes ; Molecular Sensors and Ion Detection ; Polyoxometalates: Synthesis and Applications
Authors: Hanggara Sudrajat | Hsien‐Yi Hsu | François Jérôme | Juan Carlos Colmenares
Source: ChemCatChem (article, 2025-01-24)
Field: Chemistry — Organic Chemistry

Mechanoredox‐Catalyzed Organic Synthesis with Piezoelectric Materials: <i>Quo Vadis</i>? Abstract Piezoelectric materials offer great promise due to their ability to generate electric fields under mechanical stress, producing surface charges that drive otherwise kinetically sluggish redox reactions. The strained surfaces of these materials provide a unique advantage in controlling product selectivity and enabling reaction pathways that are unattainable with conventional methods. This perspective highlights advancements, challenges, and the future potential of piezoelectric materials in synthetic organic chemistry, with a focus on designing materials optimized for piezocatalyzed organic synthesis. Piezocatalysis is industrially relevant because of its operational simplicity, enabling mild, gram scale synthesis with reusable catalysts, minimal solvent use, and air tolerant conditions. It involves redox cycles that facilitate one electron redox events without requiring light exposure or electrical bias. Despite significant progress, many fundamental aspects are yet to be fully understood. One example is the correlation between piezoelectricity and catalytic activity, which is not always linear, as demonstrated by the comparison between tetragonal and cubic BaTiO₃. While cubic BaTiO₃ is not piezoelectric, it shows excellent catalytic activity in certain redox reactions such as arylation, dicarbonylation, and cyclization under mechanochemical conditions comparable to that of piezoelectric tetragonal BaTiO₃. Considering all these aspects, this perspective aims to stimulate discussion to advance this promising field in the right direction. Catalysis ; Piezoelectricity ; Status quo ; Organic synthesis ; Materials science ; Chemistry ; Nanotechnology ; Organic chemistry ; Composite material ; Political science Radical Photochemical Reactions ; Sulfur-Based Synthesis Techniques ; Conducting polymers and applications
Authors: Huaiyuan Zhu | Shigeyoshi Inoue
Source: Chem (article, 2025-07-02)
Field: Chemistry — Inorganic Chemistry

N-Heterocyclic carbene-phosphinidenes in main-group chemistry N-heterocyclic carbene-phosphinidene (NHCP) and its anionic counterpart represent one of the most prominent classes of N-heterocyclic carbene (NHC) derivatives featuring phosphorus, distinguished by their efficacy and utility as phosphorus-donor ligands.This perspective showcases the impact of structurally and electronically distinct carbene moieties on the design principles of NHCP ligands, with a spotlight on their pivotal role in synthesizing diverse main-group compounds-especially those featuring low-valent element centers.The end of this perspective provides a detailed outline of several potential future directions for the development of NHCP ligands, including the synthesis of novel NHCP-involved main-group compounds leveraging the tunable electronic and steric properties of NHCPs, as well as the exploration of their applications in small molecule activation, catalysis, and materials science. Carbene ; Group (periodic table) ; Chemistry ; Organic chemistry ; Nanotechnology ; Materials science ; Catalysis Synthesis and characterization of novel inorganic/organometallic compounds ; N-Heterocyclic Carbenes in Organic and Inorganic Chemistry ; Organophosphorus compounds synthesis
Authors: Gabriel Brouchon | Pablo Álvarez | Alexandre Six | Pierre Lemechko | Alexandra Dimitriades-Lemaire | Gatien Fleury | Jean‐François Sassi | Stéphane Bruzaud
Source: Polymer Degradation and Stability (article, 2025-01-04)
Field: Materials Science — Biomaterials

Biosynthesis of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBHV) using microalgae-derived starch and levulinic acid • Biosynthesis processes were carried out with microalgae-derived starch glucose. • Poly(3-hydroxybutyrate-co-3-hydroxyvalerate)s (PHBHV) with different rates in HB and HV units were produced. • The thermal and mechanical characteristics of PHBHV were measured as a function of HV proportion. A microalgae cultivation process was developed in order to produce starch-rich biomass, which can be converted into glucose after starch extraction and hydrolysis. Associated to levulinic acid, biosynthesis processes were carried out with microalgae-derived starch glucose, resulting in the production of poly (3-hydroxybutyrate-co-3-hydroxyvalerate)s (PHBHV) with different contents in HB and HV units, with HV units reaching up to 32%. The thermal and mechanical characteristics were measured as a function of HV proportion and are discussed in terms of chemical structure/morphology/properties relationships, showing that these properties can be modulated by adjusting the ratio between HB and HV units. The crystallinity of PHBHV copolymers gradually decreases as HV unit content increases and tends to drastically increase the ductility of materials with an elongation at break equal to about 800% for PHBHV with 32% in HV units. This work emphasizes the possibility to precisely design tailor-made PHBHV with tunable functional properties, by playing on the mixture of substrates initially introduced. Moreover, it addresses crucial societal considerations by using raw materials that do not compete with the food industry. Levulinic acid ; Biosynthesis ; Starch ; Chemistry ; Poly-3-hydroxybutyrate ; Food science ; Chemical engineering ; Biochemistry ; Organic chemistry ; Catalysis ; Enzyme biodegradable polymer synthesis and properties ; Enzyme Catalysis and Immobilization ; Muscle metabolism and nutrition
Authors: Yingzhu Zi | Anjun Huang | Heping Zhao | Xue Bai | Yue Liu | Yangke Cun | Zhiguo Song | Jianbei Qiu | Yang Shen | Ji Zhou | Zhengwen Yang
Source: Nature Communications (article, 2025-07-25)
Field: Materials Science — Materials Chemistry

Force-light-heat stimulation-induced multicolor chromism and multifunctional applications of europium tungstate phosphor Stimulus-responsive chromogenic luminescent materials are promising for security and optical storage, yet force-induced color change in inorganic materials remains rarely reported. Here we report a europium tungstate that exhibits mechanochromism, driven by pressure-induced tungsten valence transformation and color center formation. The sample color shifts from orange to black with increasing pressure, accompanied by a linear variation in reflectance. A luminescence modulation rate of 100% for Eu<sup>3+</sup> is achieved due to the strong reabsorption of the black state. Negative photochromism, switching from black/orange to white, occurs under laser irradiation or heating via the reversible phase transition between EuWO<sub>4</sub> and Eu<sub>2</sub>W<sub>2</sub>O<sub>9</sub>. The luminescence modulation is attributed to the synergistic effects of body color reabsorption and nonradiative transitions. Our work demonstrates a robust inorganic material responsive to force, light, and heat, offering versatile functionality for pressure sensing, anti-counterfeiting, and optical storage, and provides a design strategy for multicolor chromogenic materials. Tungstate ; Phosphor ; Luminescence ; Materials science ; Europium ; Optoelectronics ; Photochromism ; Photochemistry ; Optics ; Nanotechnology ; Chemistry Luminescence Properties of Advanced Materials ; Lanthanide and Transition Metal Complexes ; Luminescence and Fluorescent Materials
Authors: Xueying Fan | Can Zhang | Shen Wang | S.Y. Ma | Qianfeng Gu | Yao Li | Zhongqiu Tong | Hongbo Xü | Qichun Zhang
Source: SmartMat (article, 2025-09-10)
Field: Materials Science — Polymers and Plastics

Porous Electrochromic Structures: A Review ABSTRACT Electrochromic technology has gained significant attention due to its wide applications in smart windows, adjustable optoelectronic devices, and energy storage systems. The strategic incorporation of porous architectures has emerged as a pivotal approach for enhancing electrochromic material performance. This approach effectively addresses critical challenges, including volume expansion mitigation, stability enhancement, and ion transport efficiency optimization, thereby improving both electrical conductivity and response kinetics. This review systematically examines principal strategies and synthesis methodologies for developing porous electrochromic materials. First, nanoparticle‐stacked particulate films demonstrate enhanced electrolyte permeability through their inherent porous configurations, significantly increasing accessible reactive sites. Second, template‐assisted approaches utilizing hard templates (e.g., polystyrene [PS] nanospheres, silica nanospheres) and soft templates (e.g., cetyltrimethylammonium bromide [CTAB], polyethylene glycol [PEG]) enable precise pore size regulation while effectively mitigating structural deformation. Third, coordination modulation strategies involving the length adjustment of organic ligands and the functionalization of metal/organic centers facilitate the fabrication of nanocrystalline mesoporous materials with uniform pore distribution, offering tailored electrochromic optimization pathways. Through in‐depth analysis of these porous design strategies, this review elucidates the critical structure‐performance relationships between porous architectures and electrochromic behaviors. The findings provide valuable guidance for the rational synthesis of high‐performance electrochromic materials, thereby advancing the development of next‐generation electrochromic technologies. Electrochromism ; Electrolyte ; Porosity ; Mesoporous material ; Template ; Fabrication ; Nanoporous ; Mesoporous silica Transition Metal Oxide Nanomaterials ; Conducting polymers and applications ; Gas Sensing Nanomaterials and Sensors
Authors: Y H Kim | Jae‐Yong Kwak | Myung Su Lim | Su Yeon Lim | Sehyun Chae | Suk‐Jin Ha | Young‐Wook Won | Hyun‐Ouk Kim | Kwang Suk Lim
Source: Pharmaceutics (review, 2025-10-20)
Field: Materials Science — Biomaterials

Advances in PCL, PLA, and PLGA-Based Technologies for Anticancer Drug Delivery Biodegradable polymers such as Polycaprolactone (PCL), Polylactic acid (PLA), and Poly(lactic-<i>co</i>-glycolic acid) (PLGA) are attracting attention as key platforms for anticancer drug delivery systems due to their excellent biocompatibility and controllable degradation rates. These polymers can overcome limitations of existing chemotherapeutics, such as low bioavailability, systemic toxicity, and nonspecific cell damage, and contribute to the development of precision medicine approaches and long-acting therapeutics. This paper discusses the chemical and physicochemical properties of these three polymers, their synthetic strategies, and the controlled drug release technology through surface functionalization and stimuli-responsive design. Furthermore, we highlight their potential for use in various formulations, including micelles, nanoparticles, hydrogels, and microspheres, enabling enhanced drug solubility, sustained release, and tumor targeting. Preclinical and clinical applications demonstrate that these polymer-based DDSs represent a promising approach for implementing next-generation precision anticancer treatment strategies, with further potential for clinical translation and widespread adoption. Anticancer drug ; Drug delivery ; Biocompatibility ; Polylactic acid ; Targeted drug delivery ; Polycaprolactone ; Drug ; Biodegradable polymer Nanoparticle-Based Drug Delivery ; Advanced Drug Delivery Systems ; Graphene and Nanomaterials Applications
Authors: Donato Luca Palladino | Francesco Baino
Source: Ceramics (article, 2025-05-23)
Field: Materials Science — Materials Chemistry

MXenes: Properties, Applications, and Potential in 3D Printing MXenes, a class of two-dimensional materials with appealing properties such as electrical conductivity, mechanical strength, and chemical stability, is rapidly gaining attention for potential applications in various fields, including energy storage, water treatment, biomedicine, and electromagnetic shielding. One of the most exciting developments is their integration with 3D printing technologies, which allows for precise control over material structure and composition. This combination has significantly expanded the scope of MXenes, particularly in electrochemical storage systems like supercapacitors and batteries, where 3D-printed MXene-based materials have demonstrated superior performance. This review article provides a detailed analysis of the synthesis, properties, and applications of MXenes, with a particular focus on their role in additive manufacturing. While the synergy between MXenes and 3D printing offers numerous advantages, challenges such as large-scale production, material stability, and refining processing techniques remain significant hurdles; all these issues are discussed in the present work. Future research directions are also highlighted that aim to enhance scalability, reduce costs, and explore new composite formulations to optimize the performance of MXenes across various applications. MXenes ; 3D printing ; Computer science ; Materials science ; Nanotechnology ; Engineering ; Mechanical engineering MXene and MAX Phase Materials ; Graphene and Nanomaterials Applications ; Advanced Memory and Neural Computing
Authors: Ju Ha Jin | Mina An | Minki Jeon | Jin Hee Kim | Sung Min Kang | Isaac Choi
Source: Chemistry - A European Journal (review, 2025-06-18)
Field: Chemistry — Organic Chemistry

Sustainable Approaches for the Protection and Deprotection of Functional Groups While functional group tolerance is a critical consideration in synthetic method development, many functional groups often fail to remain intact under diverse reaction conditions. Therefore, the protection of specific functional groups and subsequent deprotection are convenient choices for the efficient and selective synthesis of target compounds, for which the strategies have been securely established. Meanwhile, the development of sustainable synthetic methods, particularly electrochemistry and photochemistry, has recently played a significant role in the field of organic synthesis, and these approaches have proven useful in the methods of functional group protection and deprotection. This review explores electrochemical and photochemical strategies for the protection and deprotection of functional groups, with a focus on their mechanistic diversity, sustainability, and synthetic utility across various functional group classes. Functional group ; Functional diversity ; Combinatorial chemistry ; Chemistry ; Biochemical engineering ; Organic chemistry ; Biology ; Ecology ; Engineering Radical Photochemical Reactions ; Sulfur-Based Synthesis Techniques ; Polyoxometalates: Synthesis and Applications
Authors: Bartłomiej Pigulski
Source: Beilstein Journal of Organic Chemistry (review, 2025-06-26)
Field: Chemistry — Organic Chemistry

Recent advances and future challenges in the bottom-up synthesis of azulene-embedded nanographenes In recent years, significant progress has been made in the synthesis of various nanographenes incorporating non-benzenoid rings, expanding the scope of molecular design beyond all-hexagon polycyclic aromatic hydrocarbons (PAHs). Among these, π-conjugated scaffolds featuring embedded azulene units have gained considerable attention due to their unique optical and electronic properties. This review provides an overview of representative azulene-embedded nanographenes, with a particular focus on the synthetic strategies. Additionally, it explores selected aspects of aromaticity and spectroscopic properties. Azulene ; Chemistry ; Scope (computer science) ; Nanotechnology ; Conjugated system ; Aromaticity ; Combinatorial chemistry ; Molecule ; Photochemistry ; Organic chemistry ; Materials science ; Computer science ; Polymer Synthesis and Properties of Aromatic Compounds ; Fullerene Chemistry and Applications ; Graphene research and applications
Authors: Nina Biedermann | Michael Schnürch
Source: Chemistry - A European Journal (review, 2025-05-06)
Field: Chemistry — Physical and Theoretical Chemistry

Advances in Mechanochemical Methods for One‐Pot Multistep Organic Synthesis Mechanochemical synthesis has emerged as a powerful and more sustainable alternative to conventional solution-based methods, offering advantages such as no or only minimal solvent use, reduced reaction times, and simplified operational conditions. The integration of multiple steps into a single reaction vessel further enhances these benefits by eliminating workup and purification steps, reducing waste, and often improving overall efficiency. This review highlights recent advancements in mechanochemical one-pot multistep reactions in organic synthesis, focusing on protocols with sequential one-pot operation. Diverse transformations are covered, including heterocycle formation, functional group interconversions, and the synthesis of active pharmaceutical ingredients, while discussing both the operational and environmental advantages of these methodologies, along with their remaining challenges. Overall, mechanochemical one-pot synthesis has the potential to streamline transformations and therefore contribute to more sustainable approaches in modern organic synthetic chemistry. Organic synthesis ; Biochemical engineering ; Reaction conditions ; Computer science ; Process engineering ; Sustainable production ; Combinatorial chemistry ; Nanotechnology ; Chemistry ; Production (economics) ; Materials science ; Engineering ; Organic chemistry ; Catalysis Crystallography and molecular interactions ; Phenothiazines and Benzothiazines Synthesis and Activities ; Quinazolinone synthesis and applications
Authors: Zao Cheng | Patrizio Raffa
Source: Materials Advances (article, 2025-01-01)
Field: Chemistry — Organic Chemistry

From design to application: amphiphilic copolymers as antimicrobial materials This review outlines the latest advances of amphiphilic copolymers in antimicrobial materials, including design strategies and current applications. Challenges and future directions of research in amphiphilic antimicrobial polymers are discussed. Copolymer ; Amphiphile ; Antimicrobial ; Materials science ; Polymer science ; Chemistry ; Organic chemistry ; Polymer Antimicrobial agents and applications ; Polydiacetylene-based materials and applications ; Antimicrobial Peptides and Activities
Authors: T. Rego | Anna Lecticia Martinez Martinez Toledo | Marcos L. Dias
Source: Processes (article, 2025-06-10)
Field: Materials Science — Biomaterials

Effect of Processing on the Morphology and Structure of PLGA/PVA Fibers Produced by Coaxial Electrospinning The electrospinning technique can produce multifunctional polymeric devices by forming solid fibers from polymer solutions under a high-voltage electric field. Variations such as concentric needles yield core/shell fibers. This study evaluates the effects of applied voltage (12.5–20 kV) and tip-to-collector distance (12.5–20 cm) on the morphology and thermochemical behavior of PLGA/PVA fibers made by coaxial electrospinning compared with casting-produced membranes and monolithic fibers. Optimal coaxial fibers (597 ± 90 nm diameter) were produced at 15 cm/12.5 kV, exhibiting a well-defined core/shell structure (PVA core: ~100 nm; PLGA shell: ~50 nm) confirmed by laser scanning confocal (core solution labeled with fluorescein) and TEM. FTIR and TGA demonstrated nearly complete solvent removal in electrospun samples versus ~10% solvent retention in cast films. XRD analysis indicated that cast films (PLGAff) exhibited minimal crystallinity (Xc ≈ 0.1%), while electrospun PLGA (PLGAe) showed cold crystallization and higher crystallinity (Tcc ≈ 90.6 °C; Xc ≈ 2.45%). DSC detected two different Tg (≈43.2 °C and 52.8 °C) in the coaxial fibers, confirming distinct polymer domains with interfacial interactions. These results establish precise processing/structure relationships for defect-free coaxial fibers and provide fundamental design principles for hybrid systems in controlled drug delivery and tissue engineering applications. Electrospinning ; Morphology (biology) ; PLGA ; Materials science ; Coaxial ; Composite material ; Chemical engineering ; Nanotechnology ; Polymer ; Computer science ; Telecommunications ; Nanoparticle ; Engineering Electrospun Nanofibers in Biomedical Applications ; Advanced Sensor and Energy Harvesting Materials ; biodegradable polymer synthesis and properties