jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Xuefeng Shen | Fathinah Islami Hasyyati | Karin Schroën | Jasper van der Gucht | Siddharth Deshpande
Source: Small (review, 2025-10-29)
Field: Materials Science — Materials Chemistry

Microfluidic Approaches to Pickering Emulsions and Foams: Strategies, Challenges, and Promising Applications Particle-stabilized emulsions and foams, commonly referred to as Pickering emulsions and foams, offer superior stability and greater functional versatility compared to their conventional polymer- or surfactant-stabilized counterparts, bestowing them with unique features. However, the understanding of particle adsorption dynamics, particle-droplet (or particle-bubble), and interdroplet (or interbubble) interactions during large-scale emulsification remains limited, hindering full exploitation of their potential. In recent years, on-chip microfluidic techniques have provided an effective experimental platform to precisely design and produce Pickering emulsions, and perform systematic analyses with regards to their formation, stability, and dynamics. This review examines recent microfluidic advances in the production and analysis of Pickering emulsions and foams. The discussion focuses on their underlying working principles and classification of the current methods based on the mechanisms by which particles are loaded onto interfaces. The review concludes with a critical evaluation of the advantages, limitations, and emerging applications of microfluidic strategies in this field. Looking ahead, this review highlights how the integration of microfluidics with advanced materials science and analytical tools is expected to open new opportunities for designing functional interfacial systems, enabling process scale-up, and translating Pickering systems into practical applications. Microfluidics ; Pickering emulsion ; Process (computing) ; Biomimetics ; Particle (ecology) Pickering emulsions and particle stabilization ; Innovative Microfluidic and Catalytic Techniques Innovation ; Proteins in Food Systems
Authors: Niklas Ortlieb | Julian Martin | Lars Guggolz | Jari Ihonen | Anna Fischer
Source: Advanced Energy Materials (article, 2025-06-01)
Field: Materials Science — Electronic, Optical and Magnetic Materials

<sup>13</sup>C‐Labeled Mesoporous N‐Doped Carbon Nanospheres and N‐Doped Hydrothermal Carbon Aerogels as Model Materials for Carbon Corrosion Determination in Electrode Structures Abstract Carbon nanostructures are widely used in electrodes for energy storage and conversion applications due to their unique properties. Unfortunately, carbon materials can degrade under harsh oxidative electrochemical conditions, leading to carbon corrosion to CO and CO 2 . Therefore, it is necessary to develop methods for in situ monitoring of carbon corrosion during system operation. In this work, 13 C labeling is introduced into mesoporous N‐doped carbon nanospheres and N‐doped hydrothermal carbon aerogels, allowing the selective detection of 13 CO 2 via electrochemically coupled mass spectrometry during carbon corrosion. Different labeling degrees (unlabeled, partially and fully labeled) are achieved while maintaining the carbon material's morphology and physicochemical properties. These materials and mixtures of unlabeled and fully labeled materials are subjected to accelerated stress tests to evaluate their carbon corrosion behaviour. The results demonstrated that 13 CO 2 can only be found in labeled samples, regardless of whether they are partially labeled or a mixture of unlabeled and fully labeled materials. This technique facilitates in situ detection of carbon corrosion, even in the presence of a CO 2 background in air. More importantly, it allows us to distinguish between corrosion originating from the carbon material itself and other carbon‐containing components within electrochemical systems, thereby advancing the understanding of carbon materials in such systems. Materials science ; Carbon fibers ; Corrosion ; Hydrothermal circulation ; Electrochemistry ; Mesoporous material ; Chemical engineering ; Carbide-derived carbon ; Electrode ; Nanotechnology ; Composite material ; Carbon nanofiber ; Carbon nanotube ; Catalysis ; Organic chemistry ; Composite number ; Chemistry Supercapacitor Materials and Fabrication ; Catalytic Processes in Materials Science ; Electrocatalysts for Energy Conversion
Authors: Yan‐Chao Qu | Guangyue Xu | Chen Chen | Jianhua Guo | Dingjia Liu | Haiwei Jia | Haonan Guo | Shuya Jia | Jiazhen Jia | Ying Zhang | Lifeng Yan
Source: Industrial Chemistry and Materials (article, 2025-07-02)
Field: Materials Science — Materials Chemistry

A guideline to optimizing the performance of V <sub>2</sub> O <sub>5</sub> –MoO <sub>3</sub> /TiO <sub>2</sub> catalysts for low-temperature SCR denitrification in industrial application This study developed a robust low-temperature SCR denitrification catalyst (3%V 2 O 5 –10%MoO 3 /TiO 2 ) with high activity and stability, achieving over 67% monthly average denitrification efficiency in a pilot plant for over two years. Denitrification ; Guideline ; Catalysis ; Environmental science ; Selective catalytic reduction ; Materials science ; Chemistry ; Medicine ; Nitrogen ; Organic chemistry Catalytic Processes in Materials Science ; Catalysis and Hydrodesulfurization Studies ; Ammonia Synthesis and Nitrogen Reduction
Authors: Catherine Mollart | Patrick Heasman | Ellena Sherrett | Peter A. T. J Fletcher | Pierre Fayon | Jens M. H. Thomas | Villius Franckevičius | M J Peach | Abbie Trewin
Source: Small (article, 2025-02-05)
Field: Materials Science — Materials Chemistry

A New Combined Computational and Experimental Approach to Characterize Photoactive Conjugated 3D Polymers A tractable new computational protocol is proposed to elucidate oligomeric-scale detail from experimental spectra, providing insight into the local and longer-range electronic and molecular structures of amorphous materials. The protocol uses an in-house code Ambuild to grow kinetically-controlled representative oligomeric clusters of an amorphous polymeric material. Generating many clusters, the statistical prevalence of different structural motifs is identified, and used to develop a 'subset' of structures that capture a broad range of important morphologies. Subsequent electronic structure calculations allow the prediction of IR, NMR, and UV-vis spectra of the bulk materials, providing significant insight into oligomeric scale topologies and helping develop structure-property relationships by identifying the underlying structural origins of different spectral features observed experimentally. Two known, and two novel, pyrene-based conjugated microporous polymers (CMPs) are synthesized and characterized as a test bed for this newly-proposed protocol. Meaningful IR, NMR, and UV-vis absorption spectral data, and experimentally comparable computationally derived spectra are obtained. Whilst IR and NMR reliably probe the local environment, UV-vis absorption spectroscopy is found to be particularly sensitive to the longer-range structural motifs observed on an oligomeric scale, providing significant structural insight into the synthesized materials with reasonable computational cost. Conjugated system ; Polymer ; Materials science ; Nanotechnology ; Composite material Covalent Organic Framework Applications ; Luminescence and Fluorescent Materials ; Advanced Polymer Synthesis and Characterization
Authors: Onnicha Khaikate | Kathrin Strunk | Chiara Cabrele | Nattawut Hassa | Chutima Kuhakarn | Oliver Reiser
Source: ChemistryEurope (article, 2025-09-25)
Field: Chemistry — Organic Chemistry

Aziridination of Olefins by a Copper Phenanthroline Catalyst The direct aziridination of alkenes using iminoiodinanes as nitrogen source is successfully achieved by applying the copper(I) complex [Cu(dmp) 2 ]Cl (dmp = 2,9‐dimethyl‐1,10‐phenanthroline), being an established photocatalyst. The copper complex exhibits high activity in the dark for aziridination, complementing recently reported photoredox‐catalyzed aziridinations with Ru(bpy) 3 Cl 2 , which enables the transformation to occur at room temperature with low catalyst loading (1 mol%) and short reaction times (down to 10 min). Notably, the aziridine derived from α‐methyl styrene undergoes visible‐light‐driven, copper‐catalyzed atom transfer radical addition to yield functionalized amines, highlighting the dual role of [Cu(dmp) 2 ]Cl as both aziridination and photoredox catalyst for streamlined synthesis to complex nitrogen‐containing scaffolds. Aziridine ; Catalysis ; Yield (engineering) ; Copper ; Styrene ; Olefin fiber ; Atom-transfer radical-polymerization ; Nitrogen atom Synthesis and Catalytic Reactions ; Catalytic C–H Functionalization Methods ; Asymmetric Hydrogenation and Catalysis
Authors: Navneet Matharoo | Chezhiyan Sumithaa | Mani Ganeshpandian | Ramaswamy Murugavel
Source: Chemistry - An Asian Journal (article, 2025-04-23)
Field: Materials Science — Biomaterials

Mononuclear Copper(II) Phosphinates Bearing Mono‐, Bi‐, and Tridentate <i>N</i> ‐Donor Ligands: DNA Binding and Cleavage, Cytotoxicity, and Nanoencapsulation Mononuclear Cu(II) phosphinate-based compounds, [Cu(H<sub>2</sub>L<sub>1</sub>)<sub>2</sub>(Py)<sub>2</sub>] (1), [Cu(OAc)(H<sub>2</sub>L<sub>1</sub>)(Cl-tpy)] (2), and [Cu(H<sub>2</sub>L<sub>1</sub>)(Phen)<sub>2</sub>]H<sub>2</sub>L<sub>1</sub> (3) (Py = pyridine, Cl-tpy = 4'-chloro-2,2':6',2''-terpyridine, Phen = 1,10-phenanthroline monohydrate) were synthesized by reacting Cu(OAc)<sub>2</sub>·2H<sub>2</sub>O with N-donor ligands in the presence of bis(2-hydroxy-5-methylphenyl) phosphinic acid (H<sub>3</sub>L<sub>1</sub>). The compounds were isolated as single crystals and characterized by spectroscopic and microanalytical techniques. Owing to the bioavailability and biocompatibility of copper, the oxidative DNA cleavage ability of 1-3 was studied by incubating supercoiled (SC) pUC19 DNA (40 µM). The highest cleavage efficiency of complex 3 is attributed to the strong partial intercalation of 1, 10-phenanthroline rings, which enhances reactive oxygen species (ROS) generation. Encapsulation of 3 in a polydiacetylene-supported liposome nanocarrier (Lip-(3)) improves biocompatibility and anticancer activity while addressing solubility and toxicity concerns. The spherical nanoparticles (∼93 nm), characterized by UV-vis, TEM, DLS, and EDX studies exhibit stability, efficient encapsulation, and suitability for targeted drug delivery. Chemistry ; Intercalation (chemistry) ; Nuclear chemistry ; Biocompatibility ; Copper ; Nanocarriers ; Medicinal chemistry ; Cytotoxicity ; Stereochemistry ; Drug delivery ; Inorganic chemistry ; Organic chemistry ; In vitro ; Biochemistry Supramolecular Self-Assembly in Materials ; Metal-Organic Frameworks: Synthesis and Applications ; Nanocluster Synthesis and Applications
Authors: Mirza Sahaluddin | Mingxuan Li | Mehdi Zarei | Paul W. Leu | Mostafa Bedewy
Source: ACS Applied Engineering Materials (article, 2025-12-17)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Combining Laser-Induced Graphene with Kirigami for Transparent Flexible Electromagnetic Interference Shielding This study presents a method for creating effective electromagnetic interference (EMI) shields that are transparent, lightweight, and flexible, which is vital to address the needs of emerging flexible electronics. By integrating laser-induced graphene (LIG) with kirigamia technique of cutting and folding polymer filmsspatial patterns of highly conductive 3D porous graphene is produced. The entire fabrication utilizes a single laser system for both LIG and cutting, which makes the direct-write process versatile and scalable. The resulting 3D graphene is highly conductive with resistance under 25 ohm/mm and good quality with G/D ratio at 1.66 and 2D/G ratio at 0.46. The films achieve an EMI shielding efficiency (SE) over 50 dB at a low density of 0.04 g/cm<sup>∧</sup>3. By leveraging the kirigami process to tune the SE and transparency, we achieve an SE of 17 dB while maintaining over 80% transparency, which exceeds previously reported values of 2D graphene. Additionally, our results address challenges in the flexibility and weight of EMI shields, achieving an exceptional EMI specific shielding efficiency (SSE) of 1362.2 dB cm<sup>3</sup>/g, competing with the previously reported values across thicknesses ranging from 10 to several hundred micrometers. EMI ; Electromagnetic shielding ; Graphene ; Electromagnetic interference ; Electrical conductor ; Fabrication ; Flexibility (engineering) ; Shields Electromagnetic wave absorption materials ; Graphene research and applications ; Electromagnetic Compatibility and Measurements
Authors: Puja Gianani | Nalini Kurup | Nikhil Rajnani
Source: Journal of Drug Delivery and Therapeutics (review, 2025-07-15)
Field: Materials Science — Biomaterials

Emerging Applications of Marine-Derived Polymers in Targeted Drug Delivery: A Comprehensive Review of Sources, Structures, and Pharmaceutical Potentials Marine-derived polymers are increasingly recognized as versatile biomaterials for targeted drug delivery. This comprehensive review explores the sources, chemical structures, and pharmaceutical potential of key marine polymers, highlighting how their unique properties enable innovative drug delivery systems across multiple routes of administration. We classify major marine-derived polymers (e.g., alginate, chitosan, carrageenan, fucoidan, marine collagens) and explain their relevance based on biocompatibility, biodegradability, and functional diversity. We then examine their emerging applications in oral, buccal/sublingual, nasal, pulmonary, rectal, vaginal, ocular, and transdermal drug delivery, with two case studies per route illustrating recent preclinical or clinical advances. These case studies demonstrate how marine polymers enhance targeted delivery via mechanisms such as mucoadhesion, stimuli-responsive gelation, nanoparticle formation, and ligand-specific targeting. One illustrative graph and a summary table are included to visualize polymer classifications and key applications. The review also discusses recent innovations and patents, underscoring trends such as marine polymer-based nanocarriers for cancer therapy and microneedle patches for transdermal delivery. In conclusion, marine-derived polymers offer a rich platform for developing targeted, patient-friendly drug delivery systems. Their continued development, supported by growing clinical evidence and technological refinements, is poised to expand the pharmaceutical toolkit for precision medicine. Future prospects include scaled-up production, more in-depth safety profiling, and translational research to bring marine polymer-based delivery systems from bench to bedside. Keywords: Marine-derived polymers; Targeted drug delivery; Polysaccharides; Chitosan; Alginate; Carrageenan; Mucoadhesive delivery; Nanoparticles Nanotechnology ; Drug ; Drug delivery ; Biochemical engineering ; Pharmaceutical sciences ; Materials science ; Pharmacology ; Medicine ; Engineering Supramolecular Self-Assembly in Materials ; Nanoparticle-Based Drug Delivery ; Hydrogels: synthesis, properties, applications
Authors: Prakash Duari | Alexander Linke | Margarita Shishkova | Quentin Le Dé | Arpan Das | Viktoria H. Gessner
Source: Angewandte Chemie International Edition (article, 2025-10-06)
Field: Chemistry — Organic Chemistry

Isolation of Anionic <i>N</i> ‐Heterocyclic Olefins and Their Versatile Reactivity N-Heterocyclic olefins (NHOs) have emerged as powerful bases and nucleophiles with broad applications in synthesis and catalysis. Here, we report a new synthetic approach to accessing their anionic derivatives through a formal ligand exchange reaction of metalated ylides or diazomethanes with free carbenes. The reaction was found to depend on the nature of the carbene, with more electrophilic carbenes reacting more readily via N<sub>2</sub> and PPh<sub>3</sub> extrusion, respectively. Spectroscopic and crystallographic analyses, combined with computational studies revealed that the anionic NHOs exhibit bent structures. In these structures, the anionic charge at the central carbon atom is partly delocalized into the carbene and the second substituent (Z). These stabilizing effects confer versatile reactivity at the central carbon atom, the nitrogen atom of the N-heterocyclic carbene (NHC) or at the Z substituent. While the predominant reactivity occurs at the central carbon atom-enabling the convenient synthesis of functionalized NHOs-anionic NHOs also undergo a thermally induced rearrangement to N-heterocyclic imines via a skeletal rearrangement involving ring-opening of the N-heterocyclic carbene. Reactivity (psychology) ; Carbene ; Electrophile ; Nucleophile ; Substituent ; Ligand (biochemistry) N-Heterocyclic Carbenes in Organic and Inorganic Chemistry ; Catalytic Cross-Coupling Reactions ; Cyclopropane Reaction Mechanisms
Authors: Virginija Ulevičienė | Aldona Balčiūnaitė | Daina Upskuvienė | Ance Pļavniece | Aleksandrs Voļperts | Gaļina Dobele | Aivars Zhurinsh | Gediminas Niaura | Loreta Tamašauskaitė–Tamašiūnaitė | Eugenijus Norkus
Source: Catalysts (article, 2025-04-19)
Field: Chemistry — Organic Chemistry

Synthesis of Nitrogen-Doped Biomass-Based Activated-Carbon-Supported Nickel Nanoparticles for Hydrazine Oxidation In this study we present an application of wood biomass—alder wood char—as the carbon precursor for the synthesis of novel and sustainable nitrogen-doped activated-carbon-supported nickel nanoparticle catalyst (AWC-Ni-N) for hydrazine oxidation. For comparison, the wood-based carbon material doped with nitrogen only (AWC-N) was also synthesized. Extensive characterization, including SEM, Raman spectroscopy, XPS, and XRD revealed the catalysts’ microstructure and properties. Electrochemical testing demonstrated that the AWC-Ni-N catalyst significantly enhanced the efficiency of the hydrazine oxidation reaction. In addition, direct N2H4-H2O2 single-fuel-cell tests were conducted using the prepared AWC-N and AWC-Ni-N catalysts as the anodes and cathodes. Peak power densities of up to 10.8 mW cm−2 were achieved at 25 °C, corresponding to a current density of 27 mA cm−2 and a cell voltage of 0.4 V when the AWC-Ni-N catalyst was used as both the anode and cathode. Furthermore, the peak power density increased by approximately 1.6 and 2.9 times, respectively, when the operating temperature was raised from 25 °C to 55 °C for the AWC-N and AWC-Ni-N catalysts. Overall, the AWC-N and AWC-Ni-N catalysts demonstrated significant potential as anode and cathode materials in direct N2H4-H2O2 fuel cells. Nickel ; Hydrazine (antidepressant) ; Nanoparticle ; Biomass (ecology) ; Nitrogen ; Chemistry ; Materials science ; Nanotechnology ; Organic chemistry ; Biochemistry ; Agronomy Nanomaterials for catalytic reactions ; Electrocatalysts for Energy Conversion ; Catalytic Processes in Materials Science
Authors: Takashi Egashira | Hiroshi Kamizawa | Y. Hamada | Wataru Fushimoto | Hiroshi Yoshikawa | Yuji Higaki | Atsushi Takahara | Takeshi Mori | Yoshiki Katayama | Akihiro Kishimura
Source: Small (article, 2025-08-07)
Field: Materials Science — Materials Chemistry

Thermosensitive Nanostructured Coacervates Developed by Mixing ABA‐ and AB‐Block Copolymers and Their Unique Sustained Release of Nano‐Micelles in a Regulated Manner This study explores thermosensitive nanostructured coacervates formed by mixing ABA and AB block copolymers. Coacervates are liquid-liquid phase separation systems that can concentrate specific biomolecules, making them useful for biomedical applications such as sustained drug release. This study focuses on creating complex coacervates using ABA-type triblock copolymers that can bridge isolated polyion complex (PIC) domains, enabling the formation of well-ordered assemblies of polyethylene glycol (PEG)-conjugated PIC nanoparticles. These coacervates exhibit mostly reversible responses to temperature changes and morphological hysteresis upon cooling, allowing for the controlled release of PIC micelles at physiological temperatures in the zero-order kinetics. This study demonstrates that the degree of bridging of PIC domains can be tuned simply by adjusting the blend ratio of diblock to triblock copolymers, which affects their physical properties and responsiveness. Real-time and snapshot observations of the assembling behaviors upon heating clarify the formation process of coacervates from both nano- and microscale viewpoints. The successful sustained release of a model protein, green fluorescent protein, is also confirmed to occur in a zero-order manner. These findings suggest that these coacervates are promising depot formulations for nanomedicine, offering a novel model for studying intracellular biomolecular condensates and an intervention method for condensates. Coacervate ; Copolymer ; Micelle ; Nano- ; Materials science ; Nanotechnology ; Chemical engineering ; Chemistry ; Polymer ; Organic chemistry ; Aqueous solution ; Composite material Block Copolymer Self-Assembly ; Advanced Polymer Synthesis and Characterization ; Supramolecular Self-Assembly in Materials
Authors: Khasan Abdukayumov | Oliver Paull | Martin Mičica | Fatima Ibrahim | Libor Vojáček | Adrien Wright | S. Massabeau | Federico Mazzola | Vincent Polewczyk | C. Jego | Rahul Sharma | Céline Vergnaud | A. Marty | Isabelle Gomes de Moraes | Abdelkarim Ouerghi | Hanako Okuno | Anupam Jana | Indrani Kar | Jun Fujii | I. Vobornik | Luana De Lucca de Costa | O. Renault | Jing Li | Frédéric Bonell | Mairbek Chshiev | Manuel Bibès | Jean‐Marie George | H. Jaffrès | S. Dhillon | Matthieu Jamet
Source: Physical Review Letters (article, 2025-05-30)
Field: Materials Science — Materials Chemistry

Monolayer Control of Spin-Charge Conversion in van der Waals Heterostructures The diversity of 2D materials and their van der Waals (vdW) stacking presents fertile ground for engineering novel multifunctional materials and quantum states of matter. This permits unique opportunities to tailor the electronic properties of vdW heterostructures by the insertion of only a single 2D material layer. However, such vdW materials engineering at the atomic scale has yet to be investigated for spin-charge interconversion phenomena. Here, we report on the control of these effects at the monolayer level, where a drastic increase in intensity and change in sign of THz spintronic emission are demonstrated by inserting a single layer of MoSe_{2} between PtSe_{2} and graphene in a fully epitaxial, large area stacked structure. By using a combination of spin and angle resolved photoemission and density functional theory to reveal the electronic and spin structures, we illustrate two different mechanisms relying on charge transfer and electronic hybridization for the formation of Rashba states, which are responsible for spin-charge conversion and hence the THz spintronic emission. These findings open new pathways to design, at the atomic scale, efficient THz spintronic emitters made of 2D materials and other spintronic devices based on spin-charge interconversion phenomena. Monolayer ; Heterojunction ; van der Waals force ; Condensed matter physics ; Spin (aerodynamics) ; Materials science ; Charge (physics) ; Physics ; Nanotechnology ; Quantum mechanics ; Molecule 2D Materials and Applications ; Quantum and electron transport phenomena ; Electronic and Structural Properties of Oxides