jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Ernesto Costa-Villén | M.I. Ortíz | Pedro Sitjar | Cristina Puigjaner | M.S. El Fallah
Source: Magnetochemistry (article, 2025-01-13)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Exploring the Potential of Oxalyldihydrazide-Derived Schiff Bases as Versatile Ligands: Synthesis, Structural Characterization, and Magnetic Properties Schiff bases constitute a broad and well-established class of ligands widely utilized in coordination chemistry. To further enrich this family and assess the potential impact of oxalyldihydrazide-derived Schiff bases in the realms of coordination chemistry and molecular magnetism, three novel ligands have been synthesized and investigated. i.e., N′1,N′2-bis((E)-pyridin-2-ylmethylene)oxalohydrazide (H2L1), N′1-((E)-(3-methylpyridin-2-yl)methylene)-N′2-((E)-(6-methylpyridin-2-yl)methylene)oxalohydrazide (H2L2) and N′1,N′2-bis((E)-phenyl(pyridin-2-yl)methylene)oxalohydrazide (H2L3) were synthesized and then combined with various 3d metals, resulting in the formation of five new complexes with formula [Cu5(L1)2(H2O)8(MeOH)2(NO3)2](NO3)4 (1), [Mn2(HL2)2(BzO)2(MeOH)2]·2MeOH (2), [Ni(HL2)2]·2MeOH (3), [Ni4(L2)4]·4MeOH (4), [Ni8(L3)4(AcO)4(H2O)12](OAc)4 (5). These compounds were structurally and magnetically characterized, revealing the various coordination modes exhibited by the ligands and a distinct antiferromagnetic behavior. Alternating current (AC) susceptibility measurements were conducted on complex 1, showing no evidence of Single Molecule Magnet (SMM) behavior. Methylene ; Antiferromagnetism ; Chemistry ; Magnetism ; Coordination complex ; Magnetic susceptibility ; Crystallography ; Stereochemistry ; Schiff base ; Molecule ; Metal ; Medicinal chemistry ; Organic chemistry ; Physics ; Condensed matter physics Magnetism in coordination complexes ; Metal complexes synthesis and properties ; Lanthanide and Transition Metal Complexes
Authors: Sabuj Chandra Sutradhar | Md. Shahriar Ahmed | Mohammad Afsar Uddin | Ye-Chan Oh | Junwoo Park | Kyung‐Wan Nam | Mobinul Islam
Source: Gels (review, 2025-09-15)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Applications of Conductive Polymer Hydrogels for Supercapacitor, Solar Cell, and Energy Conversion Hydrogels are rapidly emerging as a versatile and promising platform for advancing energy storage and conversion technologies. Their intrinsic properties-such as high water content, excellent ionic conductivity, and inherent mechanical flexibility-position them as key materials for a wide range of applications, including supercapacitors, flexible membranes, and components in fuel cells and solar cells. Despite significant progress, challenges remain in enhancing their mechanical durability, developing scalable fabrication methods, and ensuring environmental sustainability. Recent breakthroughs in composite hydrogel systems, innovative manufacturing techniques such as 3D printing, and self-healing strategies are driving substantial improvements in device performance and operational lifespan. Emphasizing the importance of interdisciplinary approaches and innovative material design, this review highlights the transformative potential of hydrogel-based energy systems in shaping a sustainable and flexible energy future. The advancements discussed herein have promising implications for the development of high-performance, environmentally friendly, and adaptable energy devices capable of meeting the demands of next-generation applications. Self-healing hydrogels ; Sustainable energy ; Energy transformation ; Energy storage ; Photovoltaic system ; Solar energy ; Scalability ; Supercapacitor ; Fabrication Supercapacitor Materials and Fabrication ; Conducting polymers and applications ; Electrospun Nanofibers in Biomedical Applications
Authors: Marwa Shalaby | Frank Lipnizki | Heba M. Abdallah | A. Shaban | Rania Ramadan | Eman S. Mansor | Marwa Hosney | A.P. Thomas | Binny Maria Babu | Kenneth N. Rose | Hanna J. Maria | Sabu Thomas
Source: Applied Water Science (article, 2025-04-07)
Field: Materials Science — Biomaterials

Removal of PVA from textile wastewater using modified PVDF membranes by electrospun cellulose nanofibers Abstract The objective of this study was to assess the feasibility of using a poly(vinylidene fluoride) (PVDF) membrane modified with cellulose/nanostructures as a separation technique for the removal of poly(vinyl alcohol)(PVA)/reactive dyes from synthetic textile wastewater. The goal was to recycle PVA/reactive dye yellow 145 for reuse in the industry while simultaneously reclaiming water for reuse. To achieve this, the study aimed to evaluate the influence of SnO 2 /ZnO nanostructures on the polymer mixture, examining their impact on permeation and rejection of PVA/reactive dye. Additionally, the study investigated the antifouling properties of PVDF, both in the presence and absence of electrospun cellulose nanofibers. Chemical analysis techniques, including SEM, EDS, FTIR, mechanical strength testing, contact angle measurement, AFM, and determination of molecular weight cutoff (MWCO), were employed to assess the synthesized membranes. The MWCO results indicated a decrease in pore size after surface modification with electrospun cellulose acetate (CA), with the modified membrane (M2-Mod) showing a reduced MWCO of 6700 Da compared to the unmodified membrane’s MWCO of 13,980 Da. Furthermore, the study aimed to identify the optimal polymeric nanocomposite of PVDF with nano-SnO 2 or ZnO, along with electrospun cellulose nanofibers, to enhance %PVA and %dye rejection while improving membrane productivity and fouling resistance. The formulation containing a mixture of SnO 2 and ZnO, in the presence of electrospun CA, demonstrated superior performance, achieving 98% PVA rejection, 95% reactive dye rejection, and a stable flux of 20 LMH, with a normalized flux of 92%. Overall, it can be concluded that the optimized modified membrane formulation (M2-Mod) exhibited excellent antifouling behavior, holding significant potential for promoting circular economy and sustainability in textile wastewater treatment. Nanofiber ; Membrane ; Cellulose ; Textile ; Wastewater ; Materials science ; Electrospinning ; Chemical engineering ; Pulp and paper industry ; Chemistry ; Composite material ; Waste management ; Polymer ; Engineering Electrospun Nanofibers in Biomedical Applications ; Membrane Separation Technologies ; Advanced Sensor and Energy Harvesting Materials
Authors: Zhen Li | Peiyao Yan | Hao Wang | Yuancheng Zhang | Junhua Kong | Wei Zhao | Xin Li | Xiaomeng Zhang | Zhe Cui | Peng Fu | Xinchang Pang | Minying Liu | Chaobin He
Source: Advanced Science (article, 2025-05-20)
Field: Materials Science — Polymers and Plastics

Dynamic Bonds Reinforced Polyamide Elastomer for Biomedical Orthosis 4D printing of shape memory polymers (SMPs) allows the 3D-printed structures to have adjustable shapes, properties, and functionalities, paving the way for intelligent devices and multifunctional applications. However, 4D-printed SMPs face challenges due to mechanical anisotropy and mediocre shape memory performance hampered by weak interlayer adhesion. This study innovatively integrates shape memory polyamide elastomer with 4D printing technology to develop a multifunctional intelligent orthosis. Here, a dynamic bonds (DBs) reinforced shape memory polyamide elastomer is developed using a twin-screw extruder through reactive extrusion. Dynamic covalent networks are introduced into polyamide elastomer, which enhances interlayer adhesion in 4D-printed objects by utilizing combined effects of multiple dynamic covalent bonds (DCBs) and hierarchical hydrogen bonds (DHBs), leading to the reduction of mechanical anisotropy and improvement of the mechanical and shape memory properties of the 4D printouts. 4D-printed objects demonstrated excellent macroscopic shape memory and reconfiguration, showcasing the versatility of this material, and the application for spinal orthosis is also demonstrated. Materials science ; Polyamide ; Elastomer ; Shape-memory alloy ; Composite material ; Shape-memory polymer ; Covalent bond ; Computer science Polymer composites and self-healing ; Advanced Materials and Mechanics ; Electrospun Nanofibers in Biomedical Applications
Authors: Björn K Birdsong | Antonio J. Capezza | Rhoda Afriyie Mensah | Patric Elf | Mikael S. Hedenqvist | Fritjof Nilsson | Richard T. Olsson
Source: RSC Sustainability (article, 2025-01-01)
Field: Chemistry — Spectroscopy

Flexible fire-safe hybrid organic–inorganic cellulose aerogels from sol–gel casting The flexible hybrid silicon-oxide cellulose aerogels were achieved by forming thin and uniform coatings on cellulose nanofibres, combining the properties of the strong cellulose nanofibres with the more brittle silica material. Cellulose ; Materials science ; Sol-gel ; Chemical engineering ; Casting ; Aerogel ; Composite material ; Nanotechnology ; Engineering Aerogels and thermal insulation
Authors: Karolina Kowalczyk | Piotr Wieczorek | Tomasz Uchacz | Alicja Fryc | Angelika Kmita | Xueling Feng | Peiyi Wu | Szczepan Zapotoczny
Source: Journal of Materials Chemistry C (article, 2025-01-01)
Field: Chemistry — Organic Chemistry

Enhancing the reversibility of thermochromism of polydiacetylene-based nanostructures embedded in a natural polymer matrix Reversible thermochromism in polydiacetylene nanosheets is enhanced via amide-functionalization and embedding in alginate, yielding stable, responsive nanocomposites with up to 70% color recovery for sensing and smart material applications. Thermochromism ; Materials science ; Embedding ; Polymer ; Matrix (chemical analysis) ; Nanostructure ; Natural (archaeology) ; Nanotechnology ; Composite material ; Condensed matter physics ; Computer science Polydiacetylene-based materials and applications ; Supramolecular Self-Assembly in Materials ; Nanoplatforms for cancer theranostics
Authors: Asu Ece Atespare | Taha Behroozi Kohlan | Saeed Salamatgharamaleki | Mehmet Yıldız | Yusuf́ Z. Menceloǵlu | Serkan Ünal | Bekir Dizman
Source: Polymer Engineering and Science (article, 2025-03-31)
Field: Materials Science — Polymers and Plastics

Structure–property relationship and epoxy resin compatibility of poly(2‐alkyl/aryl‐2‐oxazoline)s, alongside rheological properties of their blends Abstract The utilization of polyoxazolines (POZs) in different fields can be more vigorously explored to take advantage of their unique properties, such as chemical stability, straightforward synthesis, and the versatility of the chemical structure and functionalities. This paper aims to investigate the structure‐property relationship of several POZ homopolymers before their intended use in the formulation of thermoset resins and composite manufacturing. For this goal, poly(2‐alkyl/aryl‐2‐oxazoline) homopolymers with three molar masses (1000, 2000, and 5000 g/mol) were synthesized using 2‐ethyl/propyl/pentyl/phenyl‐2‐oxazoline monomers. 1 H NMR, FTIR, and SEC results verified the successful synthesis of the monomers and homopolymers at targeted molar masses and low dispersity values (Ð). DSC and TGA analyses revealed the effects of molar mass and the structure of the homopolymers on their thermal behavior. DSC analysis showed that the homopolymers exhibited either amorphous or semi‐crystalline behavior, with their T g values ranging from −4 to 100°C. TGA analysis revealed that higher molar masses and longer alkyl pendant groups led to increased decomposition temperatures. Furthermore, the effects of the molar masses and chemical structure of the POZ homopolymers on their compatibility with epoxy resin were investigated using rheology, demonstrating that longer alkyl chains, higher molar masses, and aromatic groups improved miscibility with DGEBA, as evidenced by higher viscosity values. The hydrophilicity of the homopolymers was estimated by calculating their hydrophilic‐lipophilic balance (HLB) values, which confirmed that PEOZ is hydrophilic, whereas PPrOZ, PPeOZ, and PPhOZ are lipophilic. HLB values decreased with increasing alkyl length, with the lowest value observed for PPhOZ (lower than 7.8). This study offers valuable insights into the properties exhibited by different POZ homopolymers when incorporated into epoxy resins, thereby advancing their potential application in one‐component epoxy formulations. Highlights Structure–property relationship of polyoxazolines (POZs) was investigated. Calculated HLB values and solubility behavior of POZs correlate well. Hydrophilicity and hydrophobicity were governed by POZ type and molar mass. Thermal and rheological properties were influenced by POZ type and molar mass. T g values of POZs were tunable within a range of −4 to 100°C. Compatibility (geochemistry) ; Epoxy ; Materials science ; Oxazoline ; Rheology ; Alkyl ; Aryl ; Composite material ; Polymer chemistry ; Organic chemistry ; Catalysis ; Chemistry Synthesis and properties of polymers ; Epoxy Resin Curing Processes ; Advanced Polymer Synthesis and Characterization
Authors: Marcel Garcia | Ester Vázquez | M. Antonia Herrero | Daniel Iglesias
Source: Carbon (article, 2025-06-04)
Field: Materials Science — Materials Chemistry

Reversible aggregation of carbon nanohorns triggered by electrostatic interactions Carbon fibers ; Materials science ; Electrostatics ; Chemical engineering ; Nanotechnology ; Chemistry ; Chemical physics ; Composite material ; Physical chemistry ; Engineering ; Composite number Carbon Nanotubes in Composites ; Graphene research and applications ; Fullerene Chemistry and Applications
Authors: Matías A. Raspo | César G. Gómez | Alfonsina E. Andreatta
Source: Journal of Polymer Science (article, 2025-01-08)
Field: Materials Science — Biomaterials

Thermal Treatment Inducing the Building Up of Tailor‐Made Chitosan Films Containing Gallic Acid ABSTRACT The building up of chitosan (CS)/gallic acid (GA) films was performed by casting method, thermally pre‐processing the reaction mixture at several temperatures and process times. This study focused on the thermal treatment impact on the antioxidant activity, mechanical deformation at break, water vapor diffusion, and surface CS film features. It is found that the thermal energy promotes the diffusion of species through CS chains as well as the GA interaction with the polysaccharide, producing films with different structural organizations. Since the crosslinking degree depends on the energy received by the system, heterogeneous materials with a low chain crosslinking and a high free GA content are generated at 40°C, while homogeneous films with covalently crosslinking are mostly generated from 50°C. The free GA availability within segregated CS film regions favors the antioxidant activity, but also the polyphenol interaction with the polysaccharide decreases the crystallinity and elastic modulus, increasing the tensile strength and elongation at break. Since a threshold of 516 kJ energy received regulates the transition from heterogeneous to homogeneous films can be thermally tuned. This discovery represents a controlling synthetic factor critical to the design of materials with unique characteristics such as those required for food packaging. Chitosan ; Gallic acid ; Chemical engineering ; Thermal ; Materials science ; Chemistry ; Polymer chemistry ; Organic chemistry ; Engineering ; Physics ; Antioxidant Nanocomposite Films for Food Packaging ; biodegradable polymer synthesis and properties ; Polydiacetylene-based materials and applications
Authors: Jacopo Tricomi | Giacomo Biagiotti | Tommy Chastel | Serena Filiberti | Hana Kokot | Francesca Mancusi | Maja Žežlina | Layal Rajeh | Iztok Urbančič | Stéphane Bodin | Ernesto G. Occhiato | Andrei Turtoï | Stefano Cicchi | Barbara Richichi
Source: ACS Bio & Med Chem Au (article, 2025-08-04)
Field: Materials Science — Materials Chemistry

Synthesis of a Water-Soluble BODIPY for Targeting and Assessing the Function of Endoplasmic Reticulum We report here on a straightforward methodology to synthesize a new water-soluble fluorescent probe <b>Tris-BODIPY-OH 1</b> that contains three pH-independent hydrophilic arms. This probe has been prepared by exploiting a synthetic strategy that includes as a key step the combination of a Cu-(I)-catalyzed azide-alkyne cycloaddition (CuAAC) and a Sonogashira cross-coupling in a sequential one-pot approach. <b>Tris-BODIPY-OH 1</b> provides a significant advancement in the field by expanding the BODIPY toolbox with a biocompatible water-soluble probe, which can be used to specifically label and assess the function of the endoplasmic reticulum. Endoplasmic reticulum ; Function (biology) ; Cell biology ; Chemistry ; Water soluble ; Biochemistry ; Biophysics ; Biology ; Organic chemistry Luminescence and Fluorescent Materials ; Nanoplatforms for cancer theranostics ; Adenosine and Purinergic Signaling
Authors: Hyunwoong Lee | Ga Eun Nam | Daehoon Han
Source: Scientific Reports (article, 2025-08-24)
Field: Materials Science — Surfaces, Coatings and Films

Polydopamine-coated double emulsion capsules for on-demand drug release with reduced passive leakage Double emulsions (DEs) are widely explored in pharmaceuticals due to their ability to encapsulate both hydrophilic and hydrophobic drugs. However, their inherent instability limits their effectiveness in controlled drug delivery. Double emulsion capsules (DECs), formed by encapsulating DEs within a polymer shell, improve structural stability but still suffer from unintended drug diffusion due to the porous nature of polymeric shells. Polydopamine (PDA), a bioinspired polymer known for its strong adhesion, biocompatibility, and chemical stability, is a promising coating material for biomedical applications. However, research on its coating on DECs and its potential impact on passive leakage remains underexplored. Here we report PDA-coated DECs as an on-demand drug release system. The PDA coating effectively reduces passive leakage by forming an additional PDA layer on the DEC surface. Under optimized coating conditions, the passive leakage of coated DECs is ~ 20% lower than that of uncoated DECs for 8 days. Also, on-demand drug release is demonstrated through the photothermal effect of PDA, which enables localized heating under NIR laser irradiation. This study highlights PDA-coated DECs as a versatile drug delivery platform with enhanced stability, tunable release properties, and photothermal activation, making them promising for targeted drug delivery, implantable therapeutics, and precision medicine. Leakage (economics) ; Emulsion ; Drug ; On demand ; Fat emulsion ; Chemistry ; Pharmacology ; Medicine ; Computer science ; Surgery ; Biochemistry ; Parenteral nutrition Polymer Surface Interaction Studies ; Nanoparticle-Based Drug Delivery ; Advanced Drug Delivery Systems
Authors: Akbar Esmaeili | Siamak Noori | Paria Alimohamadkhani | Samaneh Heidari
Source: Polymers for Advanced Technologies (article, 2025-06-01)
Field: Materials Science — Biomaterials

Advancements and Challenges in Tissue Engineering of Heart Valves: From Bio‐Printing to Clinical Applications Review ABSTRACT Tissue engineering of heart valves (TEHV) presents a promising solution for cardiac deficiencies caused by various conditions. This review examines recent advancements in biodegradable polymers, hydrogels, and bioactive substances that enhance valve integrity and promote cell proliferation. Utilizing three‐dimensional (3D) bioprinting has enabled the development of valve structures that closely mimic the natural extracellular matrix, significantly improving biocompatibility. Evaluations indicate that TEHVs integrate with host tissues 30% better than traditional valves. However, scalability and immune response remain critical issues to address. This review highlights these advancements and identifies emerging trends, such as the increasing use of novel materials and technologies. Additionally, it points out existing research gaps that warrant further investigation. Ongoing developments suggest a bright future for TEHVs in clinical applications, potentially leading to substantial improvements in patient outcomes. Tissue engineering ; Materials science ; 3D printing ; Nanotechnology ; Biomedical engineering ; Heart valve ; Manufacturing engineering ; Systems engineering ; Biochemical engineering ; Construction engineering ; Engineering ethics ; Engineering ; Metallurgy ; Medicine ; Internal medicine Electrospun Nanofibers in Biomedical Applications ; 3D Printing in Biomedical Research ; Tissue Engineering and Regenerative Medicine
Authors: Şuheda Bolat | Zafer Sancak | Abdurrahman Gümüş | İdris Yazgan
Source: Applied Nano (article, 2025-08-13)
Field: Materials Science — Materials Chemistry

Amino Acid Selection Altered Silver Nanoparticles Morphology and Formation of Silver Oxide Layers Amino acids are not just monomers of proteins, but they can also carry biological functions. L-cysteine (Cys), L-proline (Pro), L-asparagine (Asn), and L-glutamic acid (Glu) were used to evaluate how different amino acid chemistries alter the morphology and size of the silver nanoparticles (AgNPs) synthesized in the presence of two carbohydrate ligands, which were lactose methoxyaniline (LMA) and galactose 5-aminosalicylic acid (G5AS). UV–vis, infrared (IR), High-Resolution Transmission Electron Microscopy (HR-TEM) and X-ray diffraction (XRD) characterizations revealed that the effect of amino acids on the characteristics of the AgNPs showed dependence on the carbohydrate ligand chemistry. In the case of LMA, AgNPs shifted from aggregates to anisotropic nanoparticles, larger aggregates, and a mixture of anisotropic and 1D nanoparticles in the presence of Cys, Glu, Asn and Pro amino acids, respectively. In contrast to this, the introduction of Cys and Asn caused the formation of cluster-like AgNPs and larger rounded nanoparticles, while G5AS-synthesized AgNPs were multigonal 0D particles. Moreover, Glu and Pro contributed the resistance of silver oxide formation on the particles. Antibacterial characterization showed that LMA_Glu_AgNPs were the most effective ones, while LMA_Cys_AgNPs and G5AS_Cys_AgNPs, which were the smallest AgNPs, did not show any significant antibacterial activity. Silver nanoparticle ; Morphology (biology) ; Silver oxide ; Oxide ; Selection (genetic algorithm) ; Nanoparticle ; Amino acid ; Chemistry ; Nanotechnology ; Materials science ; Chemical engineering ; Biochemistry ; Biology ; Organic chemistry ; Computer science ; Zoology ; Engineering Nanocluster Synthesis and Applications ; Advanced Nanomaterials in Catalysis ; Gold and Silver Nanoparticles Synthesis and Applications