jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Shilin Jin | Shuang-Yin Zhu | Luyao Wei | Manjia Zhang | Yuehua Chen | Tao Pang | Lingwei Zeng | Daqin Chen
Source: Laser & Photonics Review (article, 2025-11-29)
Field: Materials Science — Materials Chemistry

Near‐Infrared Emitting Lead‐Free Perovskite Scintillators for X‐Ray Imaging with Suppressed Optical Crosstalk ABSTRACT Portable X‐ray imaging is crucial for rapid security inspections and prompt diagnostics in outdoor settings. However, most high‐performance scintillators emit in the ultraviolet to visible range, which significantly overlaps with white light‐emitting diode (wLED) sources and sunlight, complicating the clear internal images under high‐light conditions. Here, we develop a lead‐free Cs 4 MnBi 2 Cl 12 :Tm/Ce scintillator with intense Mn 2+ visible and Tm 3+ near‐infrared (NIR) emissions. Incorporating NIR luminescence reduces optical crosstalk from external light signals, enabling high‐contrast imaging even under intense ambient illumination. Ce 3+ doping enhances energy transfer and suppresses nonradiative recombination, resulting in a high light yield of 49964 photons MeV −1 , a low detection limit of 57.2 nGy air s −1 , and a high spatial resolution up to 16 lp mm −1 . Moreover, flexible scintillator films fabricated via screen coating demonstrate stable, high‐contrast imaging under wLED or sunlight, eliminating the need for complex optics. This work offers a promising solution for realizing the next‐generation portable outdoor X‐ray detection. Scintillator ; Light-emitting diode ; Diode ; Phosphor ; Photon ; Visible spectrum ; Luminescence ; Ultraviolet Luminescence Properties of Advanced Materials ; Perovskite Materials and Applications ; Radiation Detection and Scintillator Technologies
Authors: Shahzad Zafar Iqbal | Muhammad Waseem | Farah Naz | Munawar Iqbal | Muhammad Adnan Ayub | Osama A. Mohammed | Ahmad Faizal Abdull Razis
Source: Food Science & Nutrition (article, 2025-09-01)
Field: Materials Science — Biomaterials

Application of Chitosan and Pectin‐Based Nanoemulsion Coating for the Preservation of Plum ( <i>Prunus domestica</i> ) Fruit Pectin, a bioactive polysaccharide, was mixed with chitosan (CS) and blended with three essential oil formulations to prepare nanoemulsion-based edible coatings. Three nanoemulsion-based coatings, C<sub>1</sub>, C<sub>2</sub>, and C<sub>3</sub>, comprising chitosan and pectin at ratios of 1:1, 1.25:1.25, and 1.50:1.50, respectively, were applied to plum fruits and stored at 7°C for 18 days to evaluate their preservation effectiveness. The results have documented the stability and compatibility of prepared nanoemulsions when applied during the fruit storage period. The nanoemulsion C<sub>3</sub> inhibited <i>E. coli</i> and <i>S. aureus</i> by 1.20 ± 0.06 and 0.90 ± 0.09 mm, respectively. Furthermore, the C<sub>3</sub> coating effectively delayed key quality deterioration parameters (<i>p</i> < 0.05), such as reduced weight loss (7.75%), maintained firmness (2.50 kg/cm<sup>2</sup>), lower decay incidence (2.80%), respiration rate (RR, 6.80 CO<sub>2</sub>/kg/h), and ethylene production (3.80 μL/kg/h). It also preserved titratable acidity (1.77%), total soluble solids (8.30°Brix), total phenolic content (160 mg GAE/100 g FW), pH values (3.35), and overall acceptability (6.60 score). These results established a robust foundation for the development and application of the active edible coating for prepared nanoemulsions C<sub>3</sub>, C<sub>2</sub>, and C<sub>1</sub> to preserve postharvest quality and prolong the shelf life of fruits and vegetables. Prunus ; Pectin ; Chitosan ; Prunus armeniaca ; Chemistry ; Coating ; Food science ; Horticulture ; Biology ; Biochemistry Nanocomposite Films for Food Packaging ; Postharvest Quality and Shelf Life Management ; Plant Physiology and Cultivation Studies
Authors: Yu Cao | Shudong Zhu
Source: Frontiers in Nanotechnology (article, 2025-08-26)
Field: Materials Science — Materials Chemistry

Nanozymes with phosphatase-like activity Nanozymes with phosphatase-like activity are a class of artificial nano-catalysts that mimic the catalytic functions of natural phosphatases. They have attracted widespread attention in the biomedical field in recent years owing to their superior stability, controllability, and low cost. Nanozyme demonstrates unique potential in regulating physiological phosphorus metabolism, intervening in disease-related signaling pathways, detecting disease biomarkers, and treating conditions such as tumors and inflammation. Despite significant progress in nanozyme technology for mimicking natural enzymes in recent years, the research field of phosphatase-mimicking nanozymes remains in a relatively preliminary stage. The types and mechanisms of nanozymes with phosphatase-like activity that have been systematically explored remain quite limited. With the deepening understanding of the role of phosphatases in complex biological processes including disease signal regulation, metabolic disorders, and bone disease pathogenesis, there is an urgent need to develop novel nano-materials that simulate phosphatases with more precise functions to meet the catalytic demands of diverse biological environments. This review focuses on recent research advancements in phosphatase-like nanozymes, with a critical summary of different types of nanomaterials. It aims to provide a theoretical basis and technical reference for the development of phosphatase-mimicking nanozymes with high catalytic activity, excellent biocompatibility, and targeted properties. By analyzing the key challenges and research gaps currently facing the field, we aim to provide new ideas for its continued development and accelerate its practical translation in precision medicine. Phosphatase ; Chemistry ; Computer science ; Biochemistry ; Enzyme Advanced Nanomaterials in Catalysis ; Nanocluster Synthesis and Applications ; Advanced biosensing and bioanalysis techniques
Authors: Yunhao Cao | Xiye Yang | Yazhong Wang | Jingwen Chen | Haoran Tang | Chunchen Liu | Kai Zhang | Shengyi Dong | Yong Cao | Fei Huang
Source: National Science Review (article, 2025-11-25)
Field: Materials Science — Materials Chemistry

Hybrid ionic–electronic semiconductors for interface engineering of ultra-low-dark-current solution-processed SWIR photodetectors Shortwave infrared (SWIR) photodetectors are essential for industrial, medical and security applications, but their adoption is limited by reliance on costly epitaxial semiconductors. Solution-processed organic and colloidal quantum dot (CQD) semiconductors offer a promising alternative, although their devices often suffer from high dark-current under reverse bias. We demonstrate an approach to precise work function modulation in SWIR photodetectors using conjugated polyelectrolytes with mixed counterions. This strategy achieves continuous work function tuning and interfacial defect passivation, significantly reducing dark current in solution-processed photodetectors. The optimized CQD photodetectors exhibit a dark-current density two orders of magnitude lower than that of conventional devices at -0.1 V bias (6.7 × 10<sup>-8</sup> A cm<sup>-2</sup>), achieving a linear dynamic range of 130 dB, specific detectivity of 4.3 × 10<sup>12</sup> Jones, and cutoff frequency of 107 kHz under 1550 nm illumination. Integrated with a complementary metal-oxide-semiconductor read-out integrated circuit, the resulting SWIR imager demonstrates high-resolution performance (1280 × 1024 pixels), providing a viable alternative to InGaAs-based imagers. Photodetector ; Dark current ; Semiconductor ; Cutoff frequency ; Heterojunction ; Infrared ; Shortwave ; Modulation (music) ; Quantum dot Quantum Dots Synthesis And Properties ; Carbon and Quantum Dots Applications ; Silicon Nanostructures and Photoluminescence
Authors: Zhongbo Su | Zhenrong Zheng | Xiaobiao Zuo | Lijuan Luo | Yaxin Guo
Source: Molecules (article, 2025-01-21)
Field: Chemistry — Spectroscopy

Facile Preparation of Flexible Phenolic-Silicone Aerogels with Good Thermal Stability and Fire Resistance A huge challenge is how to prepare flexible silicone aerogel materials with good flame retardancy, thermal stability, and hydrophobic properties. In this paper, resorcinol-formaldehyde was introduced into the silicone network composed of methyltrimethoxysilane (MTMS), phenyltriethoxysilane (PTES), and dimethyldimethoxysilane (DMDMS). Flexible hybrid aerogels with excellent thermal insulation, flame retardant, and hydrophobic properties were prepared by the sol-gel method and ambient pressure drying (APD), and the preparation process does not require long-term solvent exchange, only about 3 h of soaking and washing of the wet gel. The results show that the prepared phenolic-silicone aerogel has low density (0.093 g/cm<sup>3</sup>), low thermal conductivity (0.041 W/m·K), high flexibility, and compression fatigue resistance. The phenolic microspheres are bonded to the silicone skeleton to maintain the original flexibility. After 50% compression deformation, it returns to the original size normally, and there is no significant change in the stress of the sample after 50 compression cycles. Compared with pure silicone aerogels, the hybrid aerogels doped with phenolic have better char yield (65.28%) and higher decomposition temperature (609 °C). The hybrid aerogel sample has good flame-retardant properties, which can withstand alcohol lamp burning without being ignited. The micron-sized phenolic beads give the hybrid aerogels better hydrophobic properties, showing a higher static water contact angle (152°). The excellent thermal and mechanical properties mean that the hybrid aerogels prepared in this paper have good application prospects for aerospace, outdoor equipment, and other fields. Aerogel ; Materials science ; Silicone ; Methyltrimethoxysilane ; Thermal stability ; Composite material ; Thermal decomposition ; Fire retardant ; Composite number ; Chemical engineering ; Organic chemistry ; Chemistry Aerogels and thermal insulation ; Silicone and Siloxane Chemistry ; Surface Modification and Superhydrophobicity
Authors: Marianelly Esquivel | Oscar Rojas‐Carrillo | Belkis Sulbarán-Rangel | Lilliana Rodríguez-Barquero | Hasbleidy Palacios-Hinestroza | Orlando J. Rojas
Source: Journal of Composites Science (article, 2025-12-01)
Field: Materials Science — Biomaterials

Pineapple-Derived Nanocellulose for Nanocomposites: Extraction, Processing, and Properties Pineapple waste is an underexplored source for producing nanocomposites, from which nanocellulose, namely cellulose nanocrystals (CNCs) or cellulose nanofibers (CNFs), can be produced. This review summarizes extraction methods from different pineapple residues (leaves, crown leaves, stem, peel, pulp, and pomace), covering top-down processes (hydrolysis, oxidation, carboxymethylation, and mechanical fibrillation) and bottom-up strategies (ionic liquids and deep eutectic solvents). The review examines the influence of the morphology and crystallinity of nanocellulose on the functional performance of the nanocomposites. Strategies for processing pineapple-derived nanocellulose composites are analyzed by technique (solution casting, film stacking, and melt blending/extrusion) and polymer matrices (starch, PVA, chitosan, PLA, PHBV, PBAT, proteins, and polysaccharides), including typical loading levels for most polymer-reinforced systems (0.5–5 wt.%), while higher levels (15–50 wt.%) are used in particular cases such as PVA, CMC, and cellulosic matrices. The impact on mechanical strength, barrier behavior, UV shielding, and optical properties is summarized, along with reports of self-reinforced and hybrid cellulose-derived matrices. A benchmarking section was prepared to show nanocellulose loading ranges, trends in properties, and processing-relevant information categorized by type of matrix. Finally, the review describes the potential roles of pineapple waste within a bioeconomy context and identifies some extraction by-products that could be incorporated into diverse value chains. Nanocellulose ; Cellulose ; Context (archaeology) ; Nanofiber ; Cellulosic ethanol ; Extraction (chemistry) Advanced Cellulose Research Studies ; Nanocomposite Films for Food Packaging ; Natural Fiber Reinforced Composites
Authors: Abbas Shoukat*
Source: Agrobiological Records (article, 2025-01-01)
Field: Materials Science — Materials Chemistry

NANOFERTILIZERS AND STRESS MANAGEMENT: EMERGING OPPORTUNITIES FOR CLIMATE-RESILIENT FARMING Nanofertilizers (NFs) represent a transformative approach in sustainable agriculture by integrating nanoscale carriers and smart delivery systems into plant nutrition.This review synthesizes recent advances in four major categories of NFs: macro-nanofertilizers (N, P, K), micro-nanofertilizers (Zn, Fe, Mn, Cu, B, Mo), nano-biofertilizers (microbial and polysaccharide-based), and smart nanofertilizers (controlledrelease and stimuli-responsive).We highlight their unique mechanisms of action, including multiple uptake pathways (root, foliar, and stomatal), controlled nutrient release, improved bioavailability, and modulation of plant physiology at molecular and metabolic levels.A particular focus is given to their role in mitigating abiotic stresses salinity, drought, heat, and nutrient deficiencies through regulation of ion homeostasis, antioxidant defense, osmolyte accumulation, and photosynthetic stability.Evidence from cereals, horticultural crops, and biofortification programs indicates that NFs not only enhance nutrient-use efficiency (NUE) and yields but also improve nutritional quality of grains, thereby addressing both food security and hidden hunger.Environmental assessments reveal that, compared with conventional fertilizers, NFs substantially reduce leaching, volatilization, and greenhouse gas emissions, while potential ecological risks remain associated with nanoparticle persistence, transformation, and impacts on soil microbial diversity.Despite these advantages, limitations such as nanotoxicity, high production costs, and insufficient multi-year field validations pose challenges to widescale adoption.Emerging opportunities lie in safe-by-design formulations using biodegradable carriers, stress-specific nanoformulations, and integration with precision agriculture and digital farming.Overall, NFs offer a paradigm shift toward climate-smart and resource-efficient agriculture, but responsible innovation, regulatory frameworks, and farmer-oriented validation are essential for realizing their global potential. Agriculture ; Stress (linguistics) ; Production (economics) ; Work (physics) ; Agricultural productivity ; Fight-or-flight response Nanoparticles: synthesis and applications ; Sustainable Agricultural Systems Analysis ; Agricultural and Financial Auditing
Authors: Jinzhi Zhu | Tao Wang | Shaojun Zhang | Yingrui Bai | Guochuan Qin | Jingbin Yang
Source: Gels (article, 2025-08-07)
Field: Materials Science — Ceramics and Composites

Study on Gel–Resin Composite for Losting Circulation Control to Improve Plugging Effect in Fracture Formation Lost circulation, a prevalent challenge in drilling engineering, poses significant risks including drilling fluid loss, wellbore instability, and environmental contamination. Conventional plugging materials often exhibit an inadequate performance under high-temperature, high-pressure (HTHP), and complex formation conditions. To address that, this study developed a high-performance gel-resin composite plugging material resistant to HTHP environments. By optimizing the formulation of bisphenol-A epoxy resin (20%), hexamethylenetetramine (3%), and hydroxyethyl cellulose (1%), and incorporating fillers such as nano-silica and walnut shell particles, a controllable high-strength plugging system was constructed. Fourier-transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA) confirmed the structural stability of the resin, with an initial decomposition temperature of 220 °C and a compressive strength retention of 14.4 MPa after 45 days of aging at 140 °C. Rheological tests revealed shear-thinning behavior (initial viscosity: 300-350 mPa·s), with viscosity increasing marginally to 51 mPa·s after 10 h of stirring at ambient temperature, demonstrating superior pumpability. Experimental results indicated excellent adaptability of the system to drilling fluid contamination (compressive strength: 5.04 MPa at 20% dosage), high salinity (formation water salinity: 166.5 g/L), and elevated temperatures (140 °C). In pressure-bearing plugging tests, the resin achieved a breakthrough pressure of 15.19 MPa in wedge-shaped fractures (inlet: 7 mm/outlet: 5 mm) and a sand-packed tube sealing pressure of 11.25 MPa. Acid solubility tests further demonstrated outstanding degradability, with a 97.69% degradation rate after 24 h in 15% hydrochloric acid at 140 °C. This study provides an efficient, stable, and environmentally friendly solution for mitigating drilling fluid loss in complex formations, exhibiting significant potential for engineering applications. Lost circulation ; Composite number ; Fracture (geology) ; Materials science ; Composite material ; Circulation (fluid dynamics) ; Petroleum engineering ; Geology ; Metallurgy ; Mechanics ; Physics Advanced ceramic materials synthesis ; Drilling and Well Engineering ; Epoxy Resin Curing Processes
Authors: Shuai Ye | Shujian Ji | Minghao Kang | Liwei Liu | Junle Qu | Jiaqing Guo | Jun Song
Source: Advanced Optical Materials (article, 2025-07-07)
Field: Materials Science — Materials Chemistry

High Dissymmetry Factor Supramolecular Structured Circularly Polarized Room‐Temperature Phosphorescence: Materials Design and Performance Tuning Abstract Circularly polarized luminescence (CPL) materials have significant potential in areas like data encryption, biological imaging, and optoelectronics. Among these, long‐lived circularly polarized phosphorescence (CPP) materials are emerging as a promising research frontier. Supramolecular structures offer advantages over traditional molecular designs, allowing precise control of molecular architecture for CPP. While there has been substantial progress in this field in the past two years, a comprehensive exploration of supramolecular CPP strategies is still missing in the literature. This review summarizes recent developments in supramolecular CPP materials, highlighting the three essential conditions for achieving CPP. The materials are classified into four types: single‐component self‐assembly, copolymer/cocrystals, organic‐inorganic hybrid, and bilayer CPP films. Supramolecular structures improve luminescence dissymmetry and quantum yield via exciton coupling and chiral amplification. The review also discusses optimization of CPP properties, including dissymmetry factor, lifetime and quantum yield, and emission spectrum. The potential applications of CPP‐based materials in organic light‐emitting diodes and data security are explored. Finally, the review provides insights into performance adjustment, material synthesis, mechanism clarification, and future applications, aiming to guide the development of CPP materials for cutting‐edge optoelectronic technologies. Phosphorescence ; Materials science ; Material Design ; Optoelectronics ; Circular polarization ; Optical materials ; Supramolecular chemistry ; Nanotechnology ; Optics ; Crystallography ; Composite material ; Fluorescence ; Physics Luminescence and Fluorescent Materials ; Synthesis and Properties of Aromatic Compounds ; Perovskite Materials and Applications
Authors: Hannelore Geeraert | Milan Den Haese | Louis M. Pitet | Eveline Peeters | Niko Van den Brande
Source: ACS Applied Polymer Materials (article, 2025-06-25)
Field: Materials Science — Biomaterials

Thymine as a Melt-Soluble Nucleating Agent for Poly(3-hydroxybutyrate-<i>co</i>-4-hydroxybutyrate) Poly(3-hydroxybutyrate-co-4-hydroxybutyrate) (P(3HB-co-4HB)) is a biopolymer with promising biomedical and sustainable material applications, but its slow crystallization complicates processing. In this study, the potential of thymine as a biocompatible nucleating agent was evaluated using polarized optical microscopy (POM), differential scanning calorimetry (DSC), and tensile testing. Poly(3-hydroxybutyrate) (PHB) and P(3HB-co-4HB) with 6, 7, and 9 mol % 4HB were biosynthesized in-house usingCupriavidus sp. USMAA2-4, ensuring high purity necessary for this study. Thymine was found to dissolve in the polymer melt and recrystallize into needle-like crystals upon cooling, thereby creating effective nucleation sites. The addition of 1 wt % thymine consistently enhanced the crystallization rate under both nonisothermal and isothermal conditions, although it did not exceed the polymers’ intrinsic self-nucleation potential. Initial tensile testing on heat-pressed films further revealed improved ductility in thymine-nucleated samples. These findings highlight the potential of thymine as a melt-soluble additive for enhancing the crystallization and mechanical performance of P(3HB-co-4HB). Thymine ; Chemistry ; Poly-3-hydroxybutyrate ; DNA ; Biochemistry biodegradable polymer synthesis and properties ; Polymer crystallization and properties ; Fiber-reinforced polymer composites
Authors: Vikram Kedambadi Vasu
Source: Journal of Engineering and Applied Science (article, 2025-11-25)
Field: Materials Science — Biomaterials

Structurally tuned PLA chitosan composites through cryogenic mechanochemistry for biofunctional material development Abstract Polylactic acid or PLA based biocomposites can increasingly serve as alternatives which are eco-friendly to polymers derived from petroleum. However, inadequate filler dispersion along with poor interfacial adhesion limit the structural and functional performance of customary PLA-natural fiber systems. In this study, we have developed a new class of multiscale PLA composites with micro-chitin fibers (MCFs) and also chitosan nanowhiskers (CSWs) when we did process them through cryogenic ball milling and then we molded them with compression. This method, by greatly improving interfacial integration at both micro and nano levels and also harnessing synergistic advantages of hierarchical chitin reinforcement and also low-temperature mechanochemical dispersion, enables solvent-free, scalable fabrication of a novel processing-materials combination that was not explored in prior biocomposite systems. Composites with 5 wt% CSW showed outstanding improvements because flexural strength and modulus increased around ~ 38% and ~ 42%, and storage modulus (E′) rose around ~ 48% because elastic response improved. Thermal analysis revealed T₁₀, T₅₀, and Tder shifts up to 26 °C along with char yield nearly doubled (11.3%). These results indicated an improvement with thermal stability. FTIR-PAS and SEM analyses revealed that the bonding was stronger, in that interfacial integrity was increased. Around 40% reduction of void was attained, also 2× higher fiber–matrix contact area was attained. CSW optimized crystallization then damping behavior induced nucleation plus interfacial stiffening. With their strength now combined, with their barrier now functioning, and with their bioactivity now working, these materials can potentially apply strongly for biomedical scaffolds, for eco-packaging, and for structural components that compost, while aligning fully with goals for sustainability and for circular economy. Biocomposite ; Mechanochemistry ; Nanocomposite ; Dynamic mechanical analysis ; Fabrication ; Nucleation ; Polymer ; Flexural modulus ; Chitosan Nanocomposite Films for Food Packaging ; biodegradable polymer synthesis and properties ; Natural Fiber Reinforced Composites