jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Federico Olivieri | Noemi Faggio | Giovanni Dal Poggetto | Chiara Santillo | Roberto Avolio | Rachele Castaldo | Mariacristina Cocca | Maria Emanuela Errico | Marino Lavorgna | Gennaro Gentile
Source: Macromolecular Materials and Engineering (article, 2026-02-13)
Field: Materials Science — Polymers and Plastics

Catalyst‐Free Mass Polymerization and Characterization of Bio‐Polyhydroxhyurethanes Based on Resorcinol Bis(Cyclocarbonate) ABSTRACT In this work, we report the synthesis and characterization of non‐isocyanate polyhydroxyurethanes (PHUs) derived from resorcinol bis(cyclocarbonate) (RCC). The PHUs were obtained through polyaddition between RCC and two aliphatic diamines, namely isophoronediamine and Priamine 1075 (a commercial vegetal based diamine), selected due their eco‐friendliness, under mild conditions, without the use of toxic isocyanates and catalysts. The resulting materials were characterized by FTIR, NMR spectroscopy, GPC, DSC, and TGA to evaluate their chemical structure, molecular weight distribution, and thermal properties. Then, the processability of the synthesized PHUs was assessed and further functional characterizations, such as mechanical and viscoelastic properties, swelling and water contact angle tests, were performed. Finally, the RCC based PHUs were tested as potential adhesives for aluminium, polymer composite, and wood substrates. All the results highlight that RCC based PHUs are promising sustainable alternatives to fossil‐based polyurethanes. Resorcinol ; Characterization (materials science) ; Polymer ; Swelling ; Adhesive ; Thermal analysis ; Polymerization ; Grafting Polymer composites and self-healing ; Carbon dioxide utilization in catalysis ; biodegradable polymer synthesis and properties
Authors: Urvi Parekh | Nadiia Didukh | Samira Dabelstein | Ronja Maria Piehler | Eugen Klein | Jivesh Kaushal | Tobias Korn | Stefan Lochbrunner | Christian Klinke | Stefan Scheel | Rostyslav Lesyuk
Source: Small (article, 2026-01-29)
Field: Materials Science — Materials Chemistry

Unlocking Klockmannite: Formation of Colloidal Quasi‐2D CuSe Nanocrystals and Photo‐Physical Properties Arising From Crystal Anisotropy Copper selenide is an exceptional quasi-layered monolithic material that exhibits both semiconducting and metallic properties in adjacent visible and near-infrared (NIR) spectral ranges. Here we introduce a thiol-free colloidal synthesis for generating quasi-2D klockmannite copper selenide nanocrystals via hot injection method, achieving shape control by tuning the injection temperature and precursor concentrations without any additional ligands. This approach produces large klockmannite nanosheets with lateral sizes from 200 nm to several micrometers, as well as uniform triangular nanoplatelets with sizes of 12-25 nm that are monocrystalline and display strong NIR plasmonic absorption. The spectral features of the anisotropic klockmannite phase in the NIR have been analyzed using complex-scaled discrete dipole approximation (CSDDA) calculations, which reveal pronounced optical anisotropy and the emergence of hyperbolic regime. The combined effect of propagating and evanescent fields is regarded as the underlying reason of such modes in the hyperbolic domain. Finally, the ultrafast photophysical behavior of the material in klockmannite phase is examined, including hot-hole cooling, trapping, and coherent phonons generation. Our findings emphasize the important role of the intrinsic crystal anisotropy in governing the physical properties of nanoscale klockmannite. Anisotropy ; Nanocrystal ; Discrete dipole approximation ; Crystal (programming language) ; Phase (matter) ; Phonon ; Plasmon ; Cadmium selenide ; Nanoparticle Quantum Dots Synthesis And Properties ; Copper-based nanomaterials and applications ; Gold and Silver Nanoparticles Synthesis and Applications
Authors: Ana Belén Lozada | Ayleen Villacrés | Diana Endara | Ernesto de la Torre | Éric M. Gaigneaux | Lucía E. Manangón-Perugachi
Source: Catalysts (article, 2026-03-31)
Field: Materials Science — Materials Chemistry

Hydrophobic Surface Modification of Microporous and Mesoporous Titanosilicates and Its Impact on Catalytic Performance in Epoxidation Reactions: A Review Titanosilicates are Lewis acid catalysts widely applied in liquid-phase olefin epoxidation; however, in the presence of water, their performance is often limited by structural instability, active-site deactivation, and competing side reactions. This review critically examines hydrophobization strategies—based on controlled reduction in silanol groups or incorporation of organic functionalities—and discusses the experimental approaches used to evaluate surface hydrophobicity, including water adsorption measurements, infrared spectroscopy of silanols, contact angle analysis, and complementary spectroscopic methods. Although direct quantitative comparison among studies is hindered by differences in reaction systems and the lack of standardized catalytic metrics, consistent trends emerge. Lower silanol densities are generally associated with improved preservation of isolated tetrahedral Ti (IV) sites, higher H2O2 utilization efficiency, and reduced secondary epoxide ring-opening, leading to enhanced activity and selectivity under comparable conditions. These improvements are attributed to decreased local water activity, suppression of non-productive oxidant decomposition, and stabilization of Ti-peroxo intermediates responsible for direct epoxidation. Incorporation of organic groups produces a similar beneficial effect when introduced in moderate amounts, increasing surface hydrophobicity without significantly perturbing Ti coordination. However, beyond an optimal loading, catalytic performance declines due to pore blockage, diffusion limitations, and partial masking of active sites, revealing a threshold behavior. Fluoride also plays a dual role: when used during synthesis, it influences the insertion and distribution of framework Ti, whereas as a post-treatment, it primarily regulates silanol density and surface polarity while preserving active sites. Finally, hydrophobicity cannot be considered independently, as its impact depends on the solvent, oxidant, olefin nature, and active-site location, which collectively govern activity, selectivity, and catalyst stability. Silanol ; Microporous material ; Catalysis ; Mesoporous material ; Surface modification ; Olefin fiber ; Adsorption ; Selectivity ; Mesoporous silica Mesoporous Materials and Catalysis ; Polyoxometalates: Synthesis and Applications ; Zeolite Catalysis and Synthesis
Authors: Cihat Aydın | Oktay Emre Yıldız
Source: Bitlis Eren Üniversitesi Fen Bilimleri Dergisi (article, 2026-03-24)
Field: Materials Science — Electronic, Optical and Magnetic Materials

A New Generation Hybrid Supercapacitor: GO/ZnO Supercapacitors are energy storage materials used to store higher and larger amounts of charge than known capacitors. Energy density can be increased. Capacity and energy amount can be increased by increasing the amount of surface area used. In this study, graphene oxide (GO) synthesised by Modified Hummers method was reinforced into ZnO synthesised by sol-gel method and hybrid material with supercapacitive properties was produced. XRD, SEM, FTIR, DTA-TGA, UV- Vis-NIR and CV analyses were performed on the produced hybrid nanosupercapacitive composites. It was observed that ZnO particles were located between GO layers and were nano-sized. XRD diffractograms showed hexagonal ZnO crystallographic planes (103), (200), (112), (201), (004) and (202). DTA analyses revealed endothermic peaks due to water loss and organic decomposition. FT-IR analyses confirmed the presence of ZnO and GO in the structure. CV measurements indicate rapid charge transfer at the electrode-electrolyte interface. Endothermic process ; Oxide ; Graphene ; Hybrid material ; Hexagonal crystal system ; Charge (physics) ; Charge density ; Surface charge Supercapacitor Materials and Fabrication ; Chemical and Physical Properties of Materials ; Magnesium Oxide Properties and Applications
Authors: Imelda Octa Tampubolon | Matej Baláž
Source: ChemRxiv (article, 2026-03-04)
Field: Chemistry — Physical and Theoretical Chemistry

Mechanically induced self-propagating reactions: Fundamentals, overview, in situ monitoring and perspectives Mechanically induced self-propagating reaction (MSR) represents a promising but a rather underexplored phenomenon within mechanochemistry, a solvent-free alternative to classical solutionbased chemistry, capable of yielding functional materials within a short timeframe. On the contrary to the gradual mechanochemical reactions, MSRs are sub second combustive-like processes bringing about substantial benefits such as faster product formation, time efficiency, and lower energy consumption. Even though the mechanochemical field is in the research spotlight, MSR investigation remains on the periphery. This review aims for catalyzing a renaissance in MSR fundamentals investigation by reviewing the current state-of-art. This is done via systematically reviewing the reaction systems that were reported to react via a MSR in the past twenty years, such as metal-metalloid ones (carbides, borides, silicides, and carbonitrides), metal chalcogenides, metal oxides, and other specific types of reactions. A couple of case studies are briefly reviewed for each system, and the comprehensive table follows afterward. The review also revisits the factors impacting the MSR course from milling conditions and reagent's properties point of view, showing either a direct or inverse relationship with MSR ignition time. The recent development in the in situ monitoring of mechanochemical reactions allowed to obtain some mechanistic insights into the MSR process, which are summarized in the last chapter. The Renaissance ; Field (mathematics) ; Lead (geology) ; Mechanochemistry ; Energetic material Crystallography and molecular interactions ; Force Microscopy Techniques and Applications ; Intermetallics and Advanced Alloy Properties
Authors: Noha Said Bedowr
Source: Arabian Journal of Chemistry (article, 2026-02-17)
Field: Materials Science — Biomaterials

Synergistic impact of silver on anticancer potential of doxorubicin-loaded chitosan-coated amino-functionalized silica nanoparticles This study investigates the synergistic effect of silver on the anticancer activity of doxorubicin (DOX) encapsulated in silver-integrated amino-functionalized silica nanoparticles (AFS-NPs) coated with chitosan (DOX@AFS-NPs-Ag-CS). AFS-NPs were synthesized by a co-condensation approach using tetraethyl orthosilicate (TEOS) and 3-aminopropyltriethoxysilane (APTES) with cetyltrimethylammonium chloride (CTAC) as a template, followed by silver incorporation through silver nitrate (AgNO 3 ) treatment in dark conditions. Doxorubicin was subsequently loaded and stabilized by chitosan (CS) coating. Morphological analysis by scanning electron microscopy (SEM) confirmed spherical, uniform nanoparticles (∼900nm), while X-ray diffraction (XRD), Fourier transform infrared (FTIR), UV-Visible spectrophotometry, thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC) verified successful synthesis and drug encapsulation. Thermal stability enabled the physical encapsulation of DOX and conferred suitable thermal stability to the formulation for anticancer studies. The formulation showed a drug loading content (LC) of 17% and an entrapment efficiency (EE) of 84%. Release studies revealed pH-responsive release of DOX, achieving ∼94.2% in 24 h under acidic conditions. Importantly, DOX@AFS-NPs-Ag-CS demonstrated significant anticancer activity (60.18% inhibition) against Hep G2 cancer cell lines. These results highlight the potential of this hybrid nanocarrier for effective and targeted cancer therapy. Thermogravimetric analysis ; Tetraethyl orthosilicate ; Thermal stability ; Differential scanning calorimetry ; Chitosan ; Nanocarriers ; Nanoparticle ; Fourier transform infrared spectroscopy Nanoparticle-Based Drug Delivery ; Chemotherapy-induced cardiotoxicity and mitigation ; Mesoporous Materials and Catalysis
Authors: Hebat-Allah S. Tohamy | Fawzy G. El Desouky
Source: Emergent Materials (article, 2026-04-01)
Field: Materials Science — Materials Chemistry

Enhancing optical, luminescence, and dielectric properties of thermoplastic polyurethane with Mn3O4/carbon quantum dots for multifunctional applications This work reports a novel, sustainable approach for fabricating multifunctional thermoplastic polyurethane quantum dot hybrid, where the CDs are derived from sustainable sugarcane bagasse. The principal advantage of this nanocomposite lies in its synergistic, tunable properties, offering an exceptional combination of enhanced optical responses, photoluminescence (PL), and significantly improved dielectric characteristics in a single, flexible platform, overcoming the limitations of conventional TPU. FTIR research verified the existence of Mn-O bonds and demonstrated enhanced hydrophilicity of the composite films. The optical characteristics of TPU improve with the addition of Mn3O4/CDs. This improves its applicability for applications requiring enhanced photonic responses. The interaction between Mn3O4/CDs and TPU involves charge transfer and the creation of fascinating luminous centers. Mn3O4 serves as a quenching agent, enabling nonradiative pathways. CDs influence luminescence by augmenting emission or facilitating energy transfer pathways. Mn3O4/CDs-modified TPU displays tunable photoluminescent characteristics. Fluorescence microscopy indicated a color shift following the integration of Mn3O4/CDs into the TPU matrix, implying interactions among the components. The electrical characteristics of the nanocomposite demonstrate significant variability. These nanocomposite materials demonstrate potential for multifunctional applications, including antimicrobial coatings, optoelectronics, light emitting diodes, and energy storage. Thermoplastic polyurethane ; Nanocomposite ; Quantum dot ; Luminescence ; Photoluminescence ; Dielectric ; Quenching (fluorescence) ; Graphene Carbon and Quantum Dots Applications ; Supercapacitor Materials and Fabrication ; Carbon Nanotubes in Composites
Authors: Sri Mulyo Bondan Respati | Agung Nugroho | N. Kholis | Bambang Choiruddin
Source: Journal of Physics Conference Series (article, 2026-03-01)
Field: Chemistry — Inorganic Chemistry

Analysis of Electrical Voltage in Batteries Due to the Effect of Adding Coconut Shell Charcoal (Cocus Nucifera L) to Porous Zeolite Ceramic Separators Abstract Separators are key components in batteries during charging and discharging to prevent electrical short circuits during the ion inversion process. By creating separators with inorganic materials such as zeolite, which can facilitate ion transfer or diffusion between electrodes and are thermally stable, battery performance can be improved, such as thermal stability and high conductivity as separators in battery cells. Coconut shell charcoal is increase the pores in zeolite ceramic materials, this report will attempt to combine them with organic materials such as coconut shell charcoal and guar gum adhesive with the following weight fractions for each variable A=(98% zeolite powder : 1% coconut shell charcoal : 1% guar gum); B = (97%:2%:1%); C = (96%:3%:1%); D = (95%:4%:1%); and E = (94%:5%:1%). The highest electrical voltage was found in variable A, which was 1.84 volts, while the lowest electrical voltage was found in variable E, which was 1 volt. The ceramic zeolite separator characteristic has the highest density value in variable A, which is 1.39 g/cm 3 , while the lowest value is in variable E, which is 1.19 g/cm 3 . The largest porosity is found in variation D, which is 81.3%, and the lowest is in variation A, which is 54.50%. The largest shrinkage is found in variation E, which is 646.42 mm 3 or 0.646 cm 3 , and the lowest is in variation A, which is 67.75 mm 3 or 0.067 cm 3 . The implications of this finding indicate that the composition of the ceramic separator affects its physical properties and electrical power output. Separator (oil production) ; Charcoal ; Porosity ; Ceramic ; Zeolite ; Electrical resistivity and conductivity ; Voltage Coconut Research and Applications ; Innovations in Aquaponics and Hydroponics Systems ; Natural Products and Applications
Authors: Zhian Wang | Muhammad Harris
Source: Journal of Materials Science (article, 2026-03-14)
Field: Materials Science — Materials Chemistry

Recent novel forms of MXene as a two-dimensional lithium-ion battery material Lithium-ion batteries are the most sustainable solutions for energy storage and are evolving enormously in terms of materials and design. Multiple efforts are reported to improve the various factors of lithium-based energy storage devices like specific density and long-life cycle with new compatible and conducive materials for electrodes. MXene is one of the most recently evolved 2D-layered materials with high specific density and conductivity. However, the operational issues of restacking, oxidation, and less number of active sites for lithium insertion lead to inadequate cycle life, thus affecting the MXene’s commercial proposition. Multiple solutions have been reported in last 14 years since its invention, out of which the last three years (2023, 2024, and 2025) have seen significant advancements of new synthesis strategies, materials, structural configurations, and long-life testing. This review provides a comparative analysis of the advancements made recently in form of hierarchical segregation (mono-transition, dual-transition, composites) supported with comparative analysis with past 14 years. The review also presents the recent novel applications of MXene in LIBs besides electrode manufacturing. The contribution of this review is the novel hierarchical one-look segregations that reveal the potential research gaps for future and will be helpful for researchers and commercial industry. MXenes ; Battery (electricity) ; Polymer ; Solid mechanics ; Fabrication MXene and MAX Phase Materials ; 2D Materials and Applications ; Graphene research and applications
Authors: Alex K H Chu | Elvis Wang Hei Ng | Antonio Rizzo | Pauline Chiu
Source: ChemRxiv (article, 2026-01-23)
Field: Chemistry — Organic Chemistry

[13]Graphanyl-X: a New Saturate 3D Structure Historically, architectural curiosity drove the development of hydrocarbons such as cubane and adamantane. The [13]graphanyl-X or [13]G-X scaffold is a hydrocarbon with a unique convergence of the features of symmetry, conformational rigidity, three-dimensionality and London dispersion donation. Herein, we describe the stereoselective synthesis of a series of ttt-13[G]-X. The route has embedded the possibility of multiple stereochemistry divergence points towards the other stereoisomers in the [13]G series. We show how downstream derivatization on ttt-13[G]-CH2OH and ttt-13[G]-COOH using radical-based chemistry allows for the formation of handles for easy attachment onto existing molecules for potential application. By this strategy we can vary the hindered central position to form new CC, C-N and CO bonds. We also show how the functionalization of the periphery by MHAT gives symmetric bifunctionalized ttt-13[G]-X. Computational studies provide insights into the reactivity of the ttt-13[G]-radical, the competitive H-quenching pathways and builds an energy scale of the Michael acceptors with suitable reactivity for the Giese reaction. Reactivity (psychology) ; Cubane ; Position (finance) ; Derivatization ; Molecule ; Convergence (economics) ; Series (stratigraphy) ; Stereoselectivity Synthesis and Properties of Aromatic Compounds ; Synthesis and characterization of novel inorganic/organometallic compounds ; Organoboron and organosilicon chemistry
Authors: Bhagyashri D. Raut | Yogita P. Mahant | Arpit Wagh | Lukesh D Giradkar
Source: Research Hub (article, 2026-01-01)
Field: Materials Science — Polymers and Plastics

SYNTHESIS OF NIO NANOPARTICLES BY CO-PRECIPITATION METHOD Nanostructured nickel oxide (NiO) nanoparticles were successfully synthesized via a co-precipitation technique using nickel(II) chloride hexahydrate (NiCl₂·6H₂O) as the nickel precursor and sodium hydroxide (NaOH) as the precipitating agent. The structural characteristics and chemical composition of the prepared NiO nanoparticles were systematically investigated using X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy. XRD analysis confirmed the formation of single-phase NiO with a face-centered cubic (FCC) crystal structure and a high degree of crystallinity. The average crystallite size, estimated using the Scherrer equation, was approximately 18 nm. FTIR spectra further verified the presence of characteristic Ni–O vibrational modes, confirming the successful formation of NiO nanostructures. The results indicate that the co-precipitation method provides a simple and effective route for producing highly crystalline NiO nanoparticles suitable for potential functional applications Non-blocking I/O ; Crystallite ; Nickel oxide ; Nanoparticle ; Fourier transform infrared spectroscopy ; Sodium hydroxide ; Nickel ; Crystal structure ; Infrared spectroscopy Transition Metal Oxide Nanomaterials ; Magnesium Oxide Properties and Applications ; Pigment Synthesis and Properties
Authors: Muhammad Noor Nordin | Nur Farhana Shahrul Azhar | N. Norhashim | Ili Farhana Mohamad Ali Nasri | Noor Hafidzah Jabarullah
Source: Nanomaterials (article, 2026-01-29)
Field: Materials Science — Materials Chemistry

Next-Generation Carbon-Based Quantum Dots for Healthcare and Beauty Applications Carbon quantum dots (CQDs) have attracted intense research interest due to their unique physicochemical properties and broad application potential. CQDs are a new class of ultrasmall fluorescent carbon nanoparticles (<10 nm) that exhibit bright photoluminescence, broad excitation spectra, high quantum yields (QYs), and excellent photostability. Structurally, they consist of graphitic sp<sup>2</sup>/sp<sup>3</sup>-hybridized carbon with amorphous or nanocrystalline cores. Unlike conventional semiconductor quantum dots (SQDs), which often contain toxic group II-VI, III-VI, or IV-VI elements, CQDs offer a safer and more environmentally friendly alternative for biomedical and cosmetic applications. This review summarizes recent advances in green-chemistry approaches for CQD synthesis, including top-down, bottom-up, waste-derived, and surface-functionalization methods. Particular attention is given to natural carbon sources, which provide low-cost, sustainable, and eco-friendly routes for scalable production. The optical, electronic, and toxicological properties of CQDs are discussed to clarify their performance and safety profiles. Special emphasis is placed on their emerging roles in wound healing and cosmetic formulations, which remain underexplored despite their promising potential. To our knowledge, this is the first comprehensive review focusing on the current progress, key challenges, and future perspectives of CQDs in beauty and personal care applications. Quantum dot ; Carbon quantum dots ; SAFER ; Beauty ; Nanocrystalline material ; Environmentally friendly ; Natural (archaeology) Carbon and Quantum Dots Applications ; Quantum Dots Synthesis And Properties ; Nanocluster Synthesis and Applications