jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Xiaofei Sun | Sören Schlittenhardt | Tingting Ruan | Masaichi Saito | Mario Ruben | Peter W. Roesky
Source: Communications Chemistry (article, 2025-11-21)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Magnetic properties of monomeric and polymeric stannolediide yttrium and erbium complexes Lanthanide sandwich complexes are promising candidates for single-molecule magnets, owing to their magnetic anisotropy and slow relaxation of magnetization. Here we show the synthesis and characterization of the polymeric yttrium and erbium complexes ligated by cyclooctatetraendiide and stannolediide ligands. The molecular structures showed the formation of one-dimensional-coordination polymers with the molecular formula of C<sub>40</sub>H<sub>56</sub>KOSi<sub>2</sub>SnLn (Ln = Y, Er), which resemble a trapezoidal wave. Upon encapsulation of the K cations with 2.2.2-cryptand, the respective monomeric sandwich complexes having the molecular formula of C<sub>57</sub>H<sub>87</sub>KN<sub>2</sub>O<sub>6</sub>Si<sub>2</sub>SnLn (Ln = Y, Er) were obtained. The diamagnetic yttrium complexes were characterized by NMR spectroscopy, and the magnetic properties of both Er complexes were studied. The polymeric Er complex demonstrates a lower energy barrier for magnetic relaxation compared to the monomeric erbium complex, despite the similar structural features of the compounds. Yttrium ; Erbium ; Monomer ; Lanthanide ; Diamagnetism ; Polymer ; Relaxation (psychology) Magnetism in coordination complexes ; Metal-Organic Frameworks: Synthesis and Applications ; Lanthanide and Transition Metal Complexes
Authors: Ali J. Hadi | Uday M. Nayef | Falah A.-H. Mutlak | Majid S. Jabir | Mohammed W. Muayad
Source: Journal of Applied Sciences and Nanotechnology (article, 2025-09-01)
Field: Materials Science — Materials Chemistry

Antibacterial and Anticancer Properties of Zinc Oxide Nanoparticles: A Review of Current Advances and Future Directions Zinc oxide Nanoparticles (ZnO-NPs) have a promising potential in antibacterial and anticancer treatments because of their ease of production, low toxicity, and versatility in application. This review encompasses recently developed synthesis, characterizing and biomedical applications of ZnO-NPs. Green synthesis methodologies, sol-gel, and precipitation influence the biological effectiveness of ZnO-NPs, these methods particularly affect key characteristics such as particle size, shape and surface charge. These properties play crucial roles in antibacterial effectiveness, which facilitates their ability to generate reactive oxygen species (ROS) and bacterial cell membrane disruption, leading to bacterial cell death. The efficiency of ZnO-NP in cancer treatment is also reviewed because the nanoparticles selectively affect cancer cells, which generate apoptosis and cease cell proliferation. Additional novel applications of ZnO-NPs further highlight their benefits because they improve the precise delivery of the drug and enhance its bioavailability. Additionally, ZnO-NPs had future uses in photodynamic therapy as their light-triggered ROS generation results in localized and selective bactericidal and anticancer effects without affecting normal cells. This review provides a comparative evaluation of recent findings on the antibacterial and anticancer properties of ZnO-NPs, as well as exploring the possible directions for futural research; in addition, it emphasizes improving the functional characteristics of ZnO-NPs for enhancing the therapeutic impact and reducing the unfavorable influences that may expand the list of possible clinical uses of ZnO-NPs. Cancer therapy ; Drug delivery ; Photodynamic therapy ; Cancer treatment ; Nanoparticle ; Antibacterial activity ; Drug ; Nanomedicine Advanced Nanomaterials in Catalysis
Authors: Hajar Jabkhiro | Mario L. Naitana | Eleonora Marconi | Federica Bertelà | Giovanna Iucci | Ilaria Carlomagno | Chiara Battocchio | Carlo Meneghini | Luca Tortora
Source: Crystals (article, 2025-01-21)
Field: Materials Science — Materials Chemistry

One-Pot Synthesis of Zinc-Doped Mesoporous Silica This paper presents an original method for synthesizing Zn-doped mesoporous silica (KCC-1) via a one-pot microemulsion method followed by hydrothermal treatment. Zn incorporation into the silica matrix was achieved by varying Zn/Si molar ratios from 1% to 8%. The Zn-doping effect on KCC-1 morphological and structural properties was investigated using several characterization techniques, providing new insights into the Zn-doping behavior and coordination environment. X-ray fluorescence (XRF) spectra confirmed the stoichiometric doping of silica nanoparticles for samples obtained with a precursor concentration of 1%, 3%, and 6%. An attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy highlighted that Zn was included into the KCC-1 matrix rather than chemically adsorbed onto the surface. Scanning electron microscopy (SEM) images clearly showed that a low Zn content preserves the KCC-1 fibrous morphology. An X-ray diffraction (XRD) analysis confirmed the amorphous nature of the doped nanoparticles, suggesting a structural disorder of the silica framework at higher Zn concentrations. X-ray photoelectron spectroscopy (XPS) revealed that Zn–(OH)2 bonds increased at a 6% Zn/Si molar ratio, confirming the disordered inclusion of Zn at this doping limit. X-ray absorption near-edge structure (XANES) data revealed that in Zn-doped silica at 3% and 6%, Zn primarily exists in a coordination state similar to zinc-silicates and the amorphous Zn-hydroxyapatite-like phase. Zinc ; Doping ; Mesoporous material ; Materials science ; Mesoporous silica ; One-pot synthesis ; Chemical engineering ; Chemistry ; Metallurgy ; Organic chemistry ; Catalysis ; Optoelectronics ; Engineering Mesoporous Materials and Catalysis ; Catalytic Processes in Materials Science ; Gas Sensing Nanomaterials and Sensors
Authors: Amol B. Pandhare | Swapnajit V. Mulik | Prashant N. Nikam | Satish S. Phalake | Vishwajeet M. Khot | Manikandan Ayyar | Senthilkumar Ramasamy | Sagar D. Delekar | Rajendra P. Patil | Prabhu Pandurangan | Abdullah M. S. Alhuthali | Magda H. Abdellattif | M. Khalid Hossain
Source: Scientific Reports (article, 2025-07-02)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Titano-magnetite nanoparticles for supercapacitors and magnetic hyperthermia performance This study investigates the dual functionality of titano-magnetite (Ti<sub>0.5</sub>Fe<sub>2.5</sub>O<sub>4</sub>) nanoparticles (NPs) synthesized via a green approach for both magnetic hyperthermia and energy storage applications. Spherical Ti<sub>0.5</sub>Fe<sub>2.5</sub>O<sub>4</sub> NPs with an average crystallite size of 10-15 nm were successfully synthesized using pomegranate fruit shell extract as a natural reducing and capping agent. The synthesized NPs exhibited superparamagnetic behavior, with a saturation magnetization value of 32.2 emu/g at 300 K. When exposed to an alternating current (AC) magnetic field of 20-26.67 kA/m at 277 kHz, the NPs achieved a therapeutic temperature range of 38-39 °C. A specific loss power (SLP) of 27.90 W/g was recorded at a concentration of 1 mg/mL under an AC field strength of 26.67 kA/m. In addition to their hyperthermia potential, the NPs demonstrated promising electrochemical performance, with an energy density of 4.88 Wh/kg and a power density of 419 W/kg, confirming their applicability in supercapacitor devices. Cytocompatibility studies using NRK-52E cell lines at varying concentrations (10-50 mg/mL) confirmed the biocompatibility of the NPs. Overall, this work successfully demonstrates a green-synthesized nanomaterial with multifunctional potential for biomedical and energy-related applications. Materials science ; Supercapacitor ; Superparamagnetism ; Magnetic hyperthermia ; Biocompatibility ; Nanoparticle ; Magnetite ; Power density ; Crystallite ; Nanotechnology ; Nanomaterials ; Hyperthermia ; Magnetic nanoparticles ; Magnetization ; Chemical engineering ; Magnetic field ; Electrochemistry ; Electrode ; Chemistry ; Metallurgy ; Power (physics) Supercapacitor Materials and Fabrication ; Electrospun Nanofibers in Biomedical Applications ; Nanomaterials for catalytic reactions
Authors: Milica Hadnadjev‐Kostic | Tatjana Vulić | Djurdjica Karanovic | Ana Tomić | Dragoljub Cvetković
Source: Processes (article, 2025-11-21)
Field: Materials Science — Materials Chemistry

Layered Double Hydroxide-Based Materials for Wastewater Treatment: Recent Progress in Multifunctional Environmental Applications Layered double hydroxides (LDHs) have gained increasing attention as versatile materials in environmental remediation, particularly for wastewater treatment. Their unique structural properties, such as tunable metal cation composition, interlayer anion exchange, and structural memory effects, make them suitable materials for a broad range of applications. In addition to these intrinsic properties, thermally treated LDH-derived mixed metal oxides have emerged as a key focus, exhibiting enhanced activity through tailored structural, electronic, and textural properties. This review presents an up-to-date and systematic overview of recent advancements in the design and application of LDH-based materials, with a focus on photocatalytic degradation of organic dyes, adsorption of contaminants, and light-activated antimicrobial activity. The review also explores emerging photocatalytic applications in correlation with surface engineering, heterojunction formation, and thermal activation to enhance the overall efficiency. In addition, the synergy between antimicrobial activity and photocatalysis is discussed in the context of achieving multifunctional microbial control in water treatment. Finally, current challenges and future perspectives are addressed, including recyclability, scale-up potential, and the development of LDH composites as sustainable alternatives to conventional photocatalysts. This review aims to support researchers in advancing LDH-based technologies toward more efficient and versatile environmental remediation solutions. Photocatalysis ; Environmental remediation ; Context (archaeology) ; Layered double hydroxides ; Wastewater ; Groundwater remediation ; Adsorption Layered Double Hydroxides Synthesis and Applications ; Advanced Photocatalysis Techniques ; Advanced oxidation water treatment
Authors: I. B. Smith | Noah Terkildsen | Zachary T. Bender | Abubakar Abdurraheem | Shiraz Nantogma | Anna Samoilenko | Joseph Gyesi | Larisa M. Kovtunova | Oleg G. Salnikov | Igor V. Koptyug | Raphael Kircher | Danila A. Barskiy | Eduard Y. Chekmenev | Roman V. Shchepin
Source: Molecules (article, 2025-09-22)
Field: Materials Science — Materials Chemistry

SABRE Ir-IMes Catalysis for the Masses The Signal Amplification By Reversible Exchange (SABRE) technique provides enhancement of Nuclear Magnetic Resonance (NMR) signals up to several orders of magnitude using chemical exchange of a substrate and parahydrogen on an iridium complex. Therefore, the availability of such a catalytic complex to a broader community is an absolutely vital step for dissemination of the groundbreaking SABRE methodology. The most common SABRE catalyst, which is activated in situ, is based on Ir-IMes system (IMes = 1,3-Bis(2,4,6-trimethylphenyl)imidazol-2-ylidene). Earlier approaches for the synthesis of this catalyst often relied on specialized equipment and were limited to a comparatively small scale. This, in turn, increased the barrier of entry for new scientists to the area of SABRE hyperpolarization. Here, we present a robust, inexpensive, and easy to reproduce synthetic procedure for the preparation of this SABRE catalyst, which does not require specialized inert atmosphere equipment like a glove box or Schlenk line. The synthesis was validated on the scale of several grams vs. tens of milligrams scale in the reported approaches. The resulting SABRE catalyst, [Ir(IMes)(COD)Cl], was activated in situ and further evaluated in hyperpolarization experiments resulting in signal enhancements comparable to (or higher than) those for the catalyst prepared using Schlenk line equipment. Spin isomers of hydrogen ; Catalysis ; Hyperpolarization (physics) ; Iridium ; Inert ; Substrate (aquarium) ; Inert gas Catalytic Processes in Materials Science ; Asymmetric Hydrogenation and Catalysis
Authors: Chuang Liu | Yunlong Tao | Xuehao Sun | Zixu Wang | Guizeng Yang | Qingqing Cheng | Binbin Zhang | Jinling Wan | Lichao Sun | Qingfeng Zhang
Source: Nano Research (article, 2025-06-04)
Field: Materials Science — Materials Chemistry

Tuning the geometry, composition, and optical chirality of chiral Au nanorods for asymmetric nanocatalysis Anisotropic Au nanorods with intrinsically chiral geometry have drawn significant attention in the applications of nanophotonics, biosensing, and catalysis due to their strong chirality-dependent activities. However, tuning the geometry and optical chirality of chiral Au nanorods remains a significant challenge. Here we report the integration of foreign ions with the seed-mediated chiral growth method for achieving chiral Au nanorods with the desired geometry and optical chirality. By deliberately controlling the addition of foreign ions, chiral Au nanorods with two different intrinsically chiral geometries (faceted and dendritic nanorods) can be obtained. Moreover, the chiral Au nanorods exhibit appealing morphologically dependent electrocatalytic activities toward the oxidation of tryptophan enantiomers. We further employed an epitaxial growth strategy to construct chiral Au@Pt or Au@Pd core-shell nanorods, which also exhibit remarkable enantioselectivities and catalytic activities. This work holds promise for the rational design of chiral nanomaterials with tunable geometry and chirality-dependent activities toward asymmetric photocatalysis and electrocatalysis. Chirality (physics) ; Nanorod ; Nanotechnology ; Materials science ; Physics ; Chiral symmetry ; Quantum mechanics Nanocluster Synthesis and Applications ; Surface Chemistry and Catalysis ; Molecular spectroscopy and chirality
Authors: Ning Tang | Yujia Jiang | Hao Zhang | Jun Hu
Source: Nano Research (article, 2025-07-28)
Field: Chemistry — Spectroscopy

Innovative eutectogels: Designs, principles, and applications Eutectogels, an innovative class of gel materials, have attracted considerable attention owing to their exceptional physicochemical properties, including remarkable thermal stability, environmental friendliness, and high ionic conductivity. These unique attributes position eutectogels as promising candidates for a myriad of applications, spanning flexible electronics, biomedicine, environmental engineering, and beyond. This comprehensive review provides a thorough analysis of the recent advancements in eutectogels, emphasizing their preparation strategies, structural characteristics, and multifaceted applications. By systematically categorizing eutectogels according to their formation mechanisms, namely direct polymer dispersion in deep eutectic solvent (DES), in-situ polymerization within DES, and in-situ self-assembly of low-molecular-weight gelators in DES, this review meticulously elucidated the intricate interplay between their microstructures and macroscopic properties. Moreover, a critical assessment of the advantages and limitations inherent to each eutectogel category is provided, shedding light on the profound influence of gelator type on material properties. Building upon these insights, the review identifies the key challenges currently impeding the widespread adoption of eutectogels and proposes strategic research directions to overcome these obstacles and accelerate their development. This review serves as a valuable guide for researchers in exploring novel eutectogels with advanced performance and paves the way for groundbreaking innovations in this rapidly evolving field. Nanotechnology ; Computer science ; Materials science ; Biochemical engineering ; Engineering Aerogels and thermal insulation
Authors: Po‐Han Lin | Xuefei Huang
Source: ChemBioChem (review, 2025-04-23)
Field: Chemistry — Organic Chemistry

Recent Advances in Enzymes and Chemoenzymatic Synthesis of Tetrasaccharide Linkage Region of Proteoglycans Proteoglycans (PGs) play roles in many important biological events, including growth factor signaling, wound repair, blood coagulation, brain development, and neural stem cell migration. As the glycosaminoglycan chain of PGs is attached to the core protein through a tetrasaccharide linkage region, it is important to decipher the intricate control of the multitude of enzymes engaged in biosynthesis of the linkage region. During the past two decades, significant advances have been achieved in our understanding of the identity and interactions of these enzymes as well as the control of their activities. Furthermore, the knowledge gained on biosynthesis of the linkage region has enabled the synthesis of structurally well-defined proteoglycan-associated glycopeptides. The expression, activity, and substrate profile of enzymes and the latest development of chemoenzymatic synthesis of linkage region-bearing glycopeptides are summarized in this review. Tetrasaccharide ; Biochemistry ; Enzyme ; Biosynthesis ; Proteoglycan ; Biology ; Chemistry ; Computational biology ; Extracellular matrix ; Polysaccharide Carbohydrate Chemistry and Synthesis ; Proteoglycans and glycosaminoglycans research ; Glycosylation and Glycoproteins Research
Authors: Lucie Jarrige | Gilles Alcaraz
Source: European Journal of Organic Chemistry (article, 2025-06-20)
Field: Chemistry — Organic Chemistry

NHC‐Based Photoswitches in Catalysis: Recent Developments and Challenges Using light as an external stimulus, photoswitchable catalysis offers attractive opportunities to modulate the activity and selectivity of catalytic systems on demand and remotely, with high spatial and temporal precision. Consequently, the development of photoswitchable catalysts has attracted considerable attention from the chemist community in recent decades, leading to various photoresponsive species with diverse properties. Among these, only a few examples incorporate N ‐heterocyclic carbenes (NHCs), despite their unique electronic and steric properties and their ubiquity in organic and organometallic catalysis. This review highlights recent advances in this emerging research area from the first reported species in 2009 to the present day, with particular emphasis on the synthesis of photoswitchable NHCs and their corresponding transition metal complexes for application in catalysis. Future perspectives in the field are also discussed. Chemistry ; Nanotechnology ; Catalysis ; Steric effects ; Organic chemistry ; Materials science Click Chemistry and Applications ; Photochromic and Fluorescence Chemistry ; Advanced biosensing and bioanalysis techniques
Authors: Phuoc Huu Le | Huynh Phuong Thao | Teng-Ping Chu | Loc Tan Nguy | Ngo Ngoc Uyen | Tho Chau Minh Vinh
Source: Nanoscale Advances (article, 2025-01-01)
Field: Chemistry — Electrochemistry

Development of a UPLC-MS/MS method for pesticide analysis in paddy water and evaluation of anodic TiO<sub>2</sub> nanostructured films for pesticide photodegradation and antimicrobial applications Pesticide contamination in agricultural water poses serious environmental and public health risks, particularly due to the accumulation of harmful residues that threaten aquatic ecosystems and human health. This study investigated the levels of five pesticides-carbaryl (CBR), methiocarb (MTC), diazinon (DZN), chlorpyrifos (CLO), and cypermethrin (CYPER)-in agricultural water samples from Can Tho City and Hau Giang Province, Vietnam. Ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) was employed for their detection and quantification. Chlorpyrifos was the most frequently detected pesticide (32.5%), with concentrations ranging from 1.7 to 10.9 ng mL<sup>-1</sup>. The concentrations of cypermethrin, carbaryl, methiocarb, and diazinon were 2.6-9.4 ng mL<sup>-1</sup>, 1.3-14.3 ng mL<sup>-1</sup>, 4.1-7.7 ng mL<sup>-1</sup>, and 2.8-10.5 ng mL<sup>-1</sup>, respectively. The persistence of pesticide residues in the water samples highlights the significant contamination concerns in the region. To address this issue, two types of TiO<sub>2</sub> nanophotocatalysts-TiO<sub>2</sub> nanotube arrays (TNAs) and TiO<sub>2</sub> nanowires on nanotube arrays (TNWs/TNAs)-were synthesized for the photocatalytic degradation of the identified pesticides. Under UV-vis irradiation (∼96 mW cm<sup>-2</sup>), both nanostructures achieved rapid pesticide degradation, with removal efficiencies of up to 99% within 25 minutes. TNWs/TNAs exhibited superior photocatalytic performance, attributed to their increased surface area compared to TNAs. In addition to pesticide degradation, their antibacterial activity was assessed. Under weak UV-vis light (6.3 mW cm<sup>-2</sup>), both TNAs and TNWs/TNAs achieved 100% antibacterial efficacy against <i>Escherichia coli</i>, significantly higher than the 68% efficacy of UV light treatment alone. Even under dark conditions, TNWs/TNAs demonstrated enhanced antibacterial activity, achieving 63% efficacy compared to 12% for TNAs. These results underscore the dual functionality of TNWs/TNAs as effective photocatalysts for both pesticide degradation and bacterial inactivation, presenting a promising approach for agricultural water treatment. Photodegradation ; Pesticide ; Antimicrobial ; Chemistry ; Anode ; Environmental chemistry ; Materials science ; Photocatalysis ; Organic chemistry ; Electrode ; Agronomy ; Biology Electrochemical Analysis and Applications ; Electrochemical sensors and biosensors ; Analytical chemistry methods development
Authors: Jing Li
Source: The European Physical Journal Applied Physics (article, 2025-01-01)
Field: Materials Science — Biomaterials

Unraveling protein repulsion forces with nanocelluloses: insights from force spectroscopy Despite the promising potential of novel surface-functionalized nanocelluloses in advanced technology applications, mechanisms of nanoscaled interacting forces and their origins during interactions between proteins and these materials in biologically relevant environments remain poorly understood. This study explores force interactions between bovine serum albumin (BSA) and three functionalized nanocelluloses, OSO₃⁻-modified CNCs, lignin-residual CNCs (LCNCs), and COO⁻-modified TEMPO-oxidized cellulose nanofibers (TCNFs), to understand protein-nanocellulose interactions using Peakforce quantitative nanomechanical mapping in salt solution at two pH values. The force spectroscopy measured by a protein colloidal probe revealed that TCNFs and LCNCs resist BSA adsorption via pH-dependent repulsion, independent of substrate and protein charge. At pH 3.5, TCNFs showed short-range repulsion (25 nm) against oppositely charged proteins, decreasing to separation distance of 14 nm at pH 7.2. The secondary minima observed at pH 7.2 confirmed the electrostatic-dominant repulsive behavior of TCNFs. LCNCs displayed steric repulsion (13 nm) at pH 3.5 and very long-ranged repulsion (75 nm) at pH 7.2. These repulsion mechanisms, driven by electro-steric repulsion, and hydration forces resulting from formation of a water layer bound to proteins during protein layer compression, deviate from classical DLVO theory. The proposed interaction force mechanisms for protein repulsion were further validated by energy dissipation data and dynamic contact angle experiments. The results showed that TCNFs formed compact layers preserving protein conformation, facilitated by the surface chemical and structural advantages of TEMPO-oxidized TCNFs. While the lignins on LCNCs created flat LCNC-BSA complex layers influenced by lignin chemistry. The findings highlight the importance of optimizing nanocellulose surface chemical properties to enhance protein repellency while maintaining mechanical strength in biological systems. Force spectroscopy ; Chemical physics ; Chemistry ; Nanotechnology ; Materials science ; Atomic force microscopy Advanced Cellulose Research Studies ; Material Properties and Processing ; Proteins in Food Systems