jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Haohua Ma | Xin Qiao | Lu Han
Source: Biomimetics (review, 2023-03-22)
Field: Materials Science — Surfaces, Coatings and Films

Advances of Mussel-Inspired Nanocomposite Hydrogels in Biomedical Applications Hydrogels, with 3D hydrophilic polymer networks and excellent biocompatibilities, have emerged as promising biomaterial candidates to mimic the structure and properties of biological tissues. The incorporation of nanomaterials into a hydrogel matrix can tailor the functions of the nanocomposite hydrogels to meet the requirements for different biomedical applications. However, most nanomaterials show poor dispersion in water, which limits their integration into the hydrophilic hydrogel network. Mussel-inspired chemistry provides a mild and biocompatible approach in material surface engineering due to the high reactivity and universal adhesive property of catechol groups. In order to attract more attention to mussel-inspired nanocomposite hydrogels, and to promote the research work on mussel-inspired nanocomposite hydrogels, we have reviewed the recent advances in the preparation of mussel-inspired nanocomposite hydrogels using a variety of nanomaterials with different forms (nanoparticles, nanorods, nanofibers, nanosheets). We give an overview of each nanomaterial modified or hybridized by catechol or polyphenol groups based on mussel-inspired chemistry, and the performances of the nanocomposite hydrogel after the nanomaterial's incorporation. We also highlight the use of each nanocomposite hydrogel for various biomedical applications, including drug delivery, bioelectronics, wearable/implantable biosensors, tumor therapy, and tissue repair. Finally, the challenges and future research direction in designing mussel-inspired nanocomposite hydrogels are discussed. Self-healing hydrogels ; Nanocomposite ; Nanotechnology ; Mussel ; Materials science ; Biomedical engineering ; Engineering ; Polymer chemistry ; Fishery ; Biology Polymer Surface Interaction Studies ; Electrospun Nanofibers in Biomedical Applications ; 3D Printing in Biomedical Research
Authors: Yu Chen | Ying Liu | Ximei Li | He Yan | Weiwei Li | Ying Peng | Jiang Zheng
Source: Drug Metabolism and Disposition (review, 2023-06-09)
Field: Chemistry — Spectroscopy

Recent Advances in Mass Spectrometry-Based Spatially Resolved Molecular Imaging of Drug Disposition and Metabolomics Metabolomics ; Mass spectrometry ; Mass spectrometry imaging ; Chemistry ; Disposition ; Drug ; Computational biology ; Pharmacology ; Chromatography ; Biology Mass Spectrometry Techniques and Applications ; Ion-surface interactions and analysis ; Advanced Proteomics Techniques and Applications
Authors: Ziqi Gao | Quanjiabao Han | Jianbang Liu | Kangbo Zhao | Yu Yin | Yuanyuan Feng | Sensen Han
Source: Coatings (article, 2023-03-20)
Field: Materials Science — Materials Chemistry

Dispersion of Carbon Nanotubes Improved by Ball Milling to Prepare Functional Epoxy Nanocomposites There has been an increase in interest in developing functional polymer composites based on green chemistry principles. The purpose of this study was to investigate the preparation of functional epoxy/carbon nanotube nanocomposites using ball milling methods. In contrast to mechanical mixing, ball milling promoted good dispersion of CNTs within the epoxy matrix, thereby improving their mechanical properties and electrical conductivity. In epoxy nanocomposites with ball milling, Young’s modulus and tensile strength were increased by 653% and 150%, respectively, when CNT loading was 1.0 vol%. Additionally, the ball milling of CNTs improves their dispersion, resulting in a low percolation threshold at 0.67 vol%. The epoxy/CNT film sensor that was produced using the ball milling approach not only exhibited high reliability and sensitivity to mechanical strains and impact loads, but also possessed the ability to self-detect damage, such as cracks, and accurately locate them. This study marks a notable milestone in the advancement of functional epoxy/CNT composites through the ball milling approach. Epoxy ; Materials science ; Ball mill ; Composite material ; Carbon nanotube ; Nanocomposite ; Ultimate tensile strength ; Modulus ; Dispersion (optics) Carbon Nanotubes in Composites ; Conducting polymers and applications ; Advanced Sensor and Energy Harvesting Materials
Authors: Tom Barnowsky | Arkady V. Krasheninnikov | Rico Friedrich
Source: Advanced Electronic Materials (article, 2023-02-14)
Field: Materials Science — Materials Chemistry

A New Group of 2D Non‐van der Waals Materials with Ultra Low Exfoliation Energies Abstract The exfoliation energy—quantifying the energy required to extract a two‐dimensional (2D) sheet from the surface of a bulk material—is a key parameter determining the synthesizability of 2D compounds. Here, using ab initio calculations, a new group of non‐van der Waals 2D materials derived from non‐layered crystals that exhibit ultra low exfoliation energies is presented. In particular for sulfides, surface relaxations are essential to correctly describe the associated energy gain needed to obtain reliable results. Taking into account long‐range dispersive interactions has only a minor effect on the energetics and ultimately proves that the exfoliation energies are close to the ones of traditional van der Waals bound 2D compounds. The candidates with the lowest energies, 2D SbTlO 3 and MnNaCl 3 , exhibit appealing electronic, potential topological, and magnetic features as evident from the calculated band structures making these systems an attractive platform for fundamental and applied nanoscience. van der Waals force ; Exfoliation joint ; Materials science ; Van der Waals strain ; Ab initio ; Group (periodic table) ; Van der Waals radius ; Range (aeronautics) ; Ab initio quantum chemistry methods ; Chemical physics ; Binding energy ; Nanotechnology ; Condensed matter physics ; Molecular physics ; Graphene ; Atomic physics ; Molecule ; Physics ; Quantum mechanics 2D Materials and Applications ; MXene and MAX Phase Materials ; Perovskite Materials and Applications
Authors: A.C.C. Soares | Tasso O. Sales | Erving Ximendes | Daniel Jaque | Carlos Jacinto
Source: Nanoscale Advances (article, 2023-01-01)
Field: Materials Science — Materials Chemistry

Lanthanide doped nanoparticles for reliable and precise luminescence nanothermometry in the third biological window In recent years, infrared emitting luminescent nanothermometers have attracted significant attention because their potential for the development of new diagnosis and therapy procedures. Despite their promising applications, concerns have been raised about their reliability due to the spectral distortions induced by tissues that are present even in the commonly used second biological window (1000-1370 nm). In this work, we present an innovative solution to this issue by demonstrating the effectiveness of shifting the operation range of these nanothermometers to the third biological window (1550-1850 nm). Through experimental evidence using ytterbium, erbium, and thulium tri-doped CaF<sub>2</sub> nanoparticles, we demonstrate that luminescence spectra acquired in the third biological window are minimally distorted by the presence of tissue, opening the way to reliable luminescence thermometry. In addition, advanced analysis (singular value decomposition) of emission spectra allows sub-degree thermal uncertainties to be achieved. Lanthanide ; Luminescence ; Doping ; Nanoparticle ; Therapeutic window ; Materials science ; Window (computing) ; Nanotechnology ; Persistent luminescence ; Radiochemistry ; Chemistry ; Optoelectronics ; Computer science ; Ion ; World Wide Web ; Organic chemistry ; Biology Luminescence Properties of Advanced Materials ; Nanoplatforms for cancer theranostics ; Optical Imaging and Spectroscopy Techniques
Authors: Brian W. Blankenship | Zachary R. Jones | Naichen Zhao | Harpreet Singh | Adrisha Sarkar | Runxuan Li | Erin Suh | Alan Chen | Costas P. Grigoropoulos | Ashok Ajoy
Source: Nano Letters (article, 2023-10-09)
Field: Materials Science — Materials Chemistry

Complex Three-Dimensional Microscale Structures for Quantum Sensing Applications We present a novel method for fabricating highly customizable three-dimensional structures hosting quantum sensors based on nitrogen vacancy (NV) centers using two-photon polymerization. This approach overcomes challenges associated with structuring traditional single-crystal quantum sensing platforms and enables the creation of complex, fully three-dimensional, sensor assemblies with submicroscale resolutions (down to 400 nm) and large fields of view (>1 mm). By embedding NV center-containing nanoparticles in exemplary structures, we demonstrate high sensitivity optical sensing of temperature and magnetic fields at the microscale. Our work showcases the potential for integrating quantum sensors with advanced manufacturing techniques, facilitating the incorporation of sensors into existing microfluidic and electronic platforms, and opening new avenues for widespread utilization of quantum sensors in various applications. Microscale chemistry ; Quantum sensor ; Nanotechnology ; Quantum ; Microfluidics ; Structuring ; Materials science ; Embedding ; Quantum dot ; Quantum technology ; Photon ; Quantum optics ; Quantum imaging ; Optoelectronics ; Quantum computer ; Computer science ; Quantum simulator ; Physics ; Open quantum system ; Optics Diamond and Carbon-based Materials Research ; Nonlinear Optical Materials Studies ; Mechanical and Optical Resonators
Authors: Xuejiao Wang | Zhicheng Zhuang | Xin Li | Xi Yao
Source: Small Methods (review, 2023-05-28)
Field: Materials Science — Surfaces, Coatings and Films

Droplet Manipulation on Bioinspired Slippery Surfaces: From Design Principle to Biomedical Applications Droplet manipulation with high efficiency, high flexibility, and programmability, is essential for various applications in biomedical sciences and engineering. Bioinspired liquid-infused slippery surfaces (LIS), with exceptional interfacial properties, have led to expanding research for droplet manipulation. In this review, an overview of actuation principles is presented to illustrate how materials or systems can be designed for droplet manipulation on LIS. Recent progress on new manipulation methods on LIS is also summarized and their prospective applications in anti-biofouling and pathogen control, biosensing, and the development of digital microfluidics are presented. Finally, an outlook is made on the key challenges and opportunities for droplet manipulation on LIS. Nanotechnology ; Flexibility (engineering) ; Microfluidics ; Computer science ; Engineering ; Materials science Surface Modification and Superhydrophobicity ; Advanced Sensor and Energy Harvesting Materials ; Electrowetting and Microfluidic Technologies
Authors: Min-Ling Liu | Zijian Chen | Xiaoqing Huang | Hong Wang | Jinli Zhao | Yu‐Dong Shen | Lin Luo | Xiao-wei Wen | Bruce D. Hammock | Zhenlin Xu
Source: Environmental Pollution (article, 2023-07-28)
Field: Chemistry — Analytical Chemistry

A bispecific nanobody with high sensitivity/efficiency for simultaneous determination of carbaryl and its metabolite 1-naphthol in the soil and rice samples 1-Naphthol ; Metabolite ; Carbaryl ; Sensitivity (control systems) ; Chemistry ; Environmental chemistry ; Chromatography ; Environmental science ; Agronomy ; Pesticide ; Biology ; Biochemistry ; Organic chemistry Analytical chemistry methods development ; Electrochemical sensors and biosensors ; Analytical Chemistry and Chromatography
Authors: Nasrin Rahmatian | Shahryar Abbasi | Mohammad Tavakkoli Yaraki | Naser Abbasi
Source: Journal of Molecular Liquids (article, 2023-10-12)
Field: Materials Science — Materials Chemistry

Echinophora platyloba extract-mediated green synthesis of silver nanoparticles: Fine-tuning the size towards enhanced catalytic and antibacterial properties Green synthesis of nanomaterials for environmental application is a double win approach for environment and humanity. In this work, we present how silver nanoparticles (AgNPs) could be synthesized using Echinophora platyloba (E.P) plant extract as an environmentally friendly source, which acts as both reducing agent and capping agent for synthesis of small-sized AgNPs with maximum antibacterial and catalytic efficacy. The as-synthesized AgNPs were characterized by UV-Visible spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, and X-ray diffractometry. The size of AgNPs were fine-tuned by adjusting the synthesis parameters such as pH of plant extract, temperature, and amount of AgNO3. It was found that pH is a determining factor, where the size of AgNPs could be tuned from 15 nm to 53 nm by decreasing the pH from 10 to 7. In addition, the kinetic of growth was found pH-dependent, where small-sized AgNPs grow faster than large ones, culminating in shortening reaction time at alkaline pH. Green synthesized AgNPs (15 nm) showed remarkable catalytic performance in degradation of different individual azo dyes (i.e., Congo red (CR), Rhodamine B (Rh), methyl red (MR), bromocresol blue (BCB), Imido Black (IB)) as well as their mixture. It was found that the 90.11 % of mixture of dyes were decomposed in 8 min, following a pseudo-first order kinetic model. In addition, the antibacterial activity of the as-synthesized AgNPs (15 nm) was obtained against both gram-positive and gram-negative bacteria. The minimum inhibitory concentration (MIC) was found to be 119.06 µg/mL of silver nanoparticles for Escherichia coli (G-) and 59.53 µg/mL for Staphylococcus aureus (G+). The results of this work emphasize on how a cost-effective and green approach could be used for environmental application and affect circular economy by its potential future applications in medical and environmental fields. Silver nanoparticle ; Nuclear chemistry ; Antibacterial activity ; Catalysis ; Chemistry ; Reducing agent ; Fourier transform infrared spectroscopy ; Nanomaterials ; Rhodamine B ; Brilliant green ; Transmission electron microscopy ; Nanoparticle ; Congo red ; Green chemistry ; Scanning electron microscope ; Nanotechnology ; Chemical engineering ; Materials science ; Organic chemistry ; Bacteria ; Photocatalysis ; Reaction mechanism Nanoparticles: synthesis and applications ; Graphene and Nanomaterials Applications ; Nanomaterials for catalytic reactions
Authors: Gaihuan Ren | Dongxu Lu | Yunhe Zhang | Zhenhua Cui | Zhanzhao Li | Hongqin Yu | Jianxin He
Source: Composites Communications (article, 2023-08-14)
Field: Materials Science — Biomaterials

Poly(methyl methacrylate) embedded fluorine-free polyurethane electrospun nanofiber membranes with enhanced waterproof and breathable performance Materials science ; Polyurethane ; Methyl methacrylate ; Ultimate tensile strength ; Nanofiber ; Electrospinning ; Composite material ; Methacrylate ; Membrane ; Porosity ; Tear resistance ; Poly(methyl methacrylate) ; Chemical resistance ; Hydrostatic pressure ; Chemical engineering ; Polymer ; Chemistry ; Copolymer Electrospun Nanofibers in Biomedical Applications ; Advanced Sensor and Energy Harvesting Materials ; Polymer composites and self-healing
Authors: Xiyu Song | Qiuhong Huang | Jiaqi Liu | Haomiao Xie | Karam B. Idrees | Shujing Hou | Liang Yu | Xingjie Wang | Fusheng Liu | Zhiwei Qiao | Hao Wang | Yongwei Chen | Zhibo Li | Omar K. Farha
Source: ACS Applied Materials & Interfaces (article, 2023-03-30)
Field: Chemistry — Inorganic Chemistry

Reticular Chemistry in Pore Engineering of a Y-Based Metal–Organic Framework for Xenon/Krypton Separation The fine-tuning of metal-organic framework (MOF) pore structures is of critical importance in developing energy-efficient xenon/krypton (Xe/Kr) separation techniques. Capitalizing on reticular chemistry, we constructed a robust Y-based MOF (NU-1801) that is isoreticular to NPF-500 with a shortened organic ligand and a larger metal radius while maintaining the 4,8-connected <b>flu</b> topology, giving rise to a narrowed pore structure for the efficient separation of a Xe/Kr mixture. At 298 K and 1 bar, NU-1801 possessed a moderate Xe uptake of 2.79 mmol/g but exhibited a high Xe/Kr selectivity of 8.2 and an exceptional Xe/Kr uptake ratio of about 400%. NU-1801 could efficiently separate a Xe/Kr mixture (20:80, v/v), as validated by breakthrough experiments, due to the outstanding discrimination in van der Waals interactions of Xe and Kr toward the framework confirmed by grand canonical Monte Carlo simulations. This work highlights the importance of reticular chemistry in designing structure-specific MOFs for gas separation. Krypton ; Xenon ; Materials science ; Metal-organic framework ; Reticular connective tissue ; Chemical engineering ; Physical chemistry ; Organic chemistry ; Adsorption ; Chemistry ; Engineering Metal-Organic Frameworks: Synthesis and Applications ; Covalent Organic Framework Applications ; Radioactive element chemistry and processing
Authors: Wei Tan | Shaohua Xie | Xing Zhang | Kailong Ye | Murtadha Almousawi | Daekun Kim | Haowei Yu | Yandi Cai | Hanchen Xi | Lu Ma | Steven N. Ehrlich | Fei Gao | Lin Dong | Fudong Liu
Source: ACS Applied Materials & Interfaces (article, 2023-12-26)
Field: Materials Science — Materials Chemistry

Fine-Tuning of Pt Dispersion on Al<sub>2</sub>O<sub>3</sub> and Understanding the Nature of Active Pt Sites for Efficient CO and NH<sub>3</sub> Oxidation Reactions Fine-tuning the dispersion of active metal species on widely used supports is a research hotspot in the catalysis community, which is vital for achieving a balance between the atomic utilization efficiency and the intrinsic activity of active sites. In this work, using bayerite Al(OH)<sub>3</sub> as support directly or after precalcination at 200 or 550 °C, Pt/Al<sub>2</sub>O<sub>3</sub> catalysts with distinct Pt dispersions from single atoms to clusters (<i>ca</i>. 2 nm) were prepared and evaluated for CO and NH<sub>3</sub> removal. Richer surface hydroxyl groups on AlO<sub><i>x</i></sub>(OH)<sub><i>y</i></sub> support were proved to better facilitate the dispersion of Pt. However, Pt/Al<sub>2</sub>O<sub>3</sub> with relatively lower Pt dispersion could exhibit better activity in CO/NH<sub>3</sub> oxidation reactions. Further reaction mechanism study revealed that the Pt sites on Pt/Al<sub>2</sub>O<sub>3</sub> with lower Pt dispersion could be activated to Pt<sup>0</sup> species much easier under the CO oxidation condition, on which a higher CO adsorption capacity and more efficient O<sub>2</sub> activation were achieved simultaneously. Compared to Pt single atoms, PtO<sub><i>x</i></sub> clusters could also better activate NH<sub>3</sub> into -NH<sub>2</sub> and -HNO species. The higher CO adsorption capacity and the more efficient NH<sub>3</sub>/O<sub>2</sub> activation ability on Pt/Al<sub>2</sub>O<sub>3</sub> with relatively lower Pt dispersion well explained its higher CO/NH<sub>3</sub> oxidation activity. This study emphasizes the importance of avoiding a singular pursuit of single-atom catalyst synthesis and instead focusing on achieving the most effective Pt species on Al<sub>2</sub>O<sub>3</sub> support for targeted reactions. This approach avoids unnecessary limitations and enables a more practical and efficient strategy for Pt catalyst fabrication in emission control applications. Materials science ; Dispersion (optics) ; Physical chemistry ; Analytical Chemistry (journal) ; Chemical engineering ; Optics ; Organic chemistry ; Physics Catalytic Processes in Materials Science ; Catalysis and Oxidation Reactions ; Ammonia Synthesis and Nitrogen Reduction
Authors: Alexander J. Kibler | Nicole Tsang | Max Winslow | Stephen P. Argent | Hon Wai Lam | David Robinson | Graham N. Newton
Source: Inorganic Chemistry (article, 2023-02-10)
Field: Materials Science — Materials Chemistry

Electronic Structure and Photoactivity of Organoarsenic Hybrid Polyoxometalates Organofunctionalization of polyoxometalates (POMs) allows the preparation of hybrid molecular systems with tunable electronic properties. Currently, there are only a handful of approaches that allow for the fine-tuning of POM frontier molecular orbitals in a predictable manner. Herein, we demonstrate a new functionalization method for the Wells-Dawson polyoxotungstate [P<sub>2</sub>W<sub>18</sub>O<sub>62</sub>]<sup>6-</sup> using arylarsonic acids which enables modulation of the redox and photochemical properties. Arylarsonic groups facilitate orbital mixing between the organic and inorganic moieties, and the nature of the organic substituents significantly impacts the redox potentials of the POM core. The photochemical response of the hybrid POMs correlates with their computed and experimentally estimated lowest unoccupied molecular orbital energies, and the arylarsonic hybrids are found to exhibit increased visible light photosensitivity comparable with that of arylphosphonic analogues. Arylarsonic hybridization offers a route to stable and tunable organic-inorganic hybrid systems for a range of redox and photochemical applications. Chemistry ; Redox ; Molecular orbital ; Hybrid material ; Photochemistry ; Atomic orbital ; HOMO/LUMO ; Electronic structure ; Combinatorial chemistry ; Molecule ; Computational chemistry ; Inorganic chemistry ; Organic chemistry ; Electron Polyoxometalates: Synthesis and Applications ; Sulfur-Based Synthesis Techniques ; Advanced Nanomaterials in Catalysis
Authors: Marta López‐Corrales | Anna Rovira | Albert Gandioso | Santi Nonell | Manel Bosch | Vicente Marchán
Source: The Journal of Organic Chemistry (article, 2023-05-20)
Field: Materials Science — Materials Chemistry

Mitochondria-Targeted COUPY Photocages: Synthesis and Visible-Light Photoactivation in Living Cells Releasing bioactive molecules in specific subcellular locations from the corresponding caged precursors offers great potential in photopharmacology, especially when using biologically compatible visible light. By taking advantage of the intrinsic preference of COUPY coumarins for mitochondria and their long wavelength absorption in the visible region, we have synthesized and fully characterized a series of COUPY-caged model compounds to investigate how the structure of the coumarin caging group affects the rate and efficiency of the photolysis process. Uncaging studies using yellow (560 nm) and red light (620 nm) in phosphate-buffered saline medium have demonstrated that the incorporation of a methyl group in a position adjacent to the photocleavable bond is particularly important to fine-tune the photochemical properties of the caging group. Additionally, the use of a COUPY-caged version of the protonophore 2,4-dinitrophenol allowed us to confirm by confocal microscopy that photoactivation can occur within mitochondria of living HeLa cells upon irradiation with low doses of yellow light. The new photolabile protecting groups presented here complement the photochemical toolbox in therapeutic applications since they will facilitate the delivery of photocages of biologically active compounds into mitochondria. Chemistry ; Protonophore ; Mitochondrion ; Photochemistry ; Visible spectrum ; Biophysics ; Biochemistry ; Biology ; Materials science Photochromic and Fluorescence Chemistry ; Photoreceptor and optogenetics research ; Nanoplatforms for cancer theranostics