jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Sepideh Asadi | Tayyebeh Madrakian | Mazaher Ahmadi | Miguel Ángel Aguirre | Abbas Afkhami | Seyed Sepehr Uroomiye | Fatemeh Ghaffari | Akram Ranjbar
Source: Scientific Reports (article, 2023-11-08)
Field: Materials Science — Biomaterials

Aerosol assisted synthesis of a pH responsive curcumin anticancer drug nanocarrier using chitosan and alginate natural polymers In recent years, several nanocarrier synthesis methods have been developed. In cancer therapy, the use of smart nanocarriers is of interest. Smart nanocarriers respond to their environment and can release their cargo in a controlled manner under the action of internal or external stimuli. In this work, we report on the development of an aerosol-assisted method for the synthesis of curcumin-loaded chitosan/alginate-based polymeric nanocarrier (CurNCs). A custom-fabricated multi-nebulizer system was utilized for the synthesis of CurNCs. The developed system comprises three main parts a sprayer, an electric heater tunnel, and a collector. Curcumin and chitosan solutions were sprayed using a pneumatic multinebulizer into the electric heater tunnel to form chitosan-curcumin assemblies. Then, the aerosol was guided into the collector solution containing sodium alginate and tri-poly phosphate aqueous solution for further cross-linkage. The synthesized CurNCs were characterized using TEM, DLS, and FTIR techniques. The TEM size of the nanoparticles was 8.62 ± 2.25 nm. The release experiments revealed that the nanocarrier is sensitive to the environment pH as more curcumin is released at acidic pH values (as is the case for cancerous tissues) compared to physiological pH. The curcumin content of the nanocarrier was 77.27 mg g<sup>-1</sup> with a drug loading efficiency of 62%. The in-vitro cytotoxicity of the synthesized nanocarrier was evaluated against the MCF7 breast cancer cell line. The IC<sub>50</sub> concentrations for CurNCs and curcumin were obtained as 14.86 and 16.45 mg mL<sup>-1</sup>, respectively. The results showed that while the empty nanocarrier shows non-significant cytotoxicity, the CurNCs impact the cell culture and cause prolonged cell deaths. Overall, pH-responsive curcumin polymeric nanocarrier was synthesized using a custom fabricated aerosol-based method. The method enabled fast and feasible synthesis of the nanocarrier with high efficiency. Nanocarriers ; Curcumin ; Chitosan ; Nanoparticle ; Polymer ; Chemistry ; Aqueous solution ; Materials science ; Nanotechnology ; Chemical engineering ; Organic chemistry ; Biochemistry Nanocomposite Films for Food Packaging ; Advanced Drug Delivery Systems ; Nanoparticle-Based Drug Delivery
Authors: Sivagnana Sundaram Anandakrishnan | Suhas Yadav | Mohadeseh Tabeshfar | Vasilii Balanov | Tharaka Kaushalya | Mikko Nelo | Jani Peräntie | Jari Juuti | Yang Bai
Source: Global Challenges (review, 2023-07-08)
Field: Materials Science — Materials Chemistry

Toward Ecofriendly Piezoelectric Ceramics—Reduction of Energy and Environmental Footprint from Conceptualization to Deployment Piezoelectric materials are widely used in electromechanical coupling components including actuators, kinetic sensors, and transducers, as well as in kinetic energy harvesters that convert mechanical energy into electricity and thus can power wireless sensing networks and the Internet of Things (IoT). Because the number of deployed energy harvesting powered systems is projected to explode, the supply of piezoelectric energy harvesters is also expected to be boosted. However, despite being able to produce green electricity from the ambient environment, high-performance piezoelectrics (i.e., piezoelectric ceramics) are energy intensive in research and manufacturing. For instance, the design of new piezoceramics relies on experimental trials, which need high process temperatures and thus cause high consumption and waste of energy. Also, the dominant element in high-performance piezoceramics is hazardous Pb, but substituting Pb with other nonhazardous elements may lead to a compromise of performance, extending the energy payback time and imposing a question of trade-offs between energy and environmental benefits. Meanwhile, piezoceramics are not well recycled, raising even more issues in terms of energy saving and environmental protection. This paper discusses these issues and then proposes solutions and provides perspectives to the future development of different aspects of piezoceramic research and industry. Piezoelectricity ; Energy consumption ; Energy harvesting ; Software deployment ; Electricity ; Energy (signal processing) ; Automotive engineering ; Process engineering ; Computer science ; Engineering ; Electrical engineering Ferroelectric and Piezoelectric Materials ; Advanced Sensor and Energy Harvesting Materials
Authors: Li Liu | Na Wang | Azhar Ali Laghari | Hong Li | Can Wang | Zhenyu Zhao | Xin Gao | Qiang Zeng
Source: Current Pollution Reports (review, 2023-01-30)
Field: Chemistry — Organic Chemistry

A Review and Perspective of Environmental Disinfection Technology Based on Microwave Irradiation Microwave ; Biochemical engineering ; Water disinfection ; Environmental science ; Context (archaeology) ; Environmental pollution ; Process engineering ; Microwave irradiation ; Computer science ; Waste management ; Nanotechnology ; Materials science ; Environmental engineering ; Engineering ; Telecommunications ; Environmental protection Microwave-Assisted Synthesis and Applications ; Caching and Content Delivery
Authors: Xiaoxiao Zhou | Shuiliang Chen | Yi Pan | Yuanfeng Wang | Naifeng Xu | Yanwen Xue | Xinlin Wei | Ying Lu
Source: Biosensors (article, 2023-07-28)
Field: Materials Science — Electronic, Optical and Magnetic Materials

High-Performance Au@Ag Nanorods Substrate for SERS Detection of Malachite Green in Aquatic Products In order to improve the detection performance of surface-enhanced Raman scattering (SERS), a low-cost Au@Ag nanorods (Au@Ag NRs) substrate with a good SERS enhancement effect was developed and applied to the detection of malachite green (MG) in aquaculture water and crayfish. By comparing the SERS signal enhancement effect of five kinds of Au@Ag NRs substrates with different silver layer thickness on 4-mercaptobenzoic acid (4-MBA) solution, it was found that the substrate prepared with 100 µL AgNO<sub>3</sub> had the smallest aspect ratio (3.27) and the thickest Ag layer (4.1 nm). However, it showed a good signal enhancement effect, and achieved a detection of 4-MBA as low as 1 × 10<sup>-11</sup> M, which was 8.7 times higher than that of the AuNRs substrate. In addition, the Au@Ag NRs substrate developed in this study was used for SRES detection of MG in crayfish; its detection limit was 1.58 × 10<sup>-9</sup> M. The developed Au@Ag NRs sensor had the advantages of stable SERS signal, uniform size and low cost, which provided a new tool for SERS signal enhancement and highly sensitive SERS detection method development. Malachite green ; Nanorod ; Substrate (aquarium) ; Raman scattering ; Malachite ; Materials science ; Silver nanoparticle ; Nanotechnology ; Chemical engineering ; Raman spectroscopy ; Chemistry ; Nuclear chemistry ; Nanoparticle ; Adsorption ; Metallurgy ; Optics ; Organic chemistry Gold and Silver Nanoparticles Synthesis and Applications ; Advanced Nanomaterials in Catalysis ; Identification and Quantification in Food
Authors: Ravi Pratap | Vipul Vishal | Shilpi Chaudhary | Avanish Singh Parmar
Source: RSC Advances (article, 2023-01-01)
Field: Materials Science — Materials Chemistry

Fabrication of white light emitting diodes via high yield surface passivated carbon quantum dots doped with terbium Exploiting the unique characteristics of various materials to create novel hybrid materials opens up innovative possibilities for cutting-edge applications across numerous fields. Here, we have synthesized novel surface functionalized photoluminescent carbon quantum dots (CQDs) doped with a rare-earth element (Tb<sup>3+</sup>) for white light emitting diodes. High quantum yield CQDs were produced utilizing <i>Plumeria</i> leaves as a precursor using a one-step hydrothermal approach, and further, its optical characterization was thoroughly investigated. Herein, the functionalized CQDs demonstrate excitation-independent electroluminescence performance. The UV-LED chip and functionalized CQD were combined to create a device that emits cold white light with Commission Internationale de L'Eclairage coordinates of (0.33, 0.34), a corresponding correlated color temperature of 4995 K and color rendering index of 84.2. Terbium ; Fabrication ; Materials science ; Doping ; Quantum dot ; Diode ; Optoelectronics ; Nanotechnology ; Quantum yield ; Light-emitting diode ; Carbon fibers ; Luminescence ; Optics ; Composite material ; Fluorescence ; Physics Carbon and Quantum Dots Applications ; Quantum Dots Synthesis And Properties ; Nanocluster Synthesis and Applications
Authors: Yi‐Chun Ling | S. J. Ben Yoo
Source: Nanophotonics (review, 2023-09-26)
Field: Materials Science — Polymers and Plastics

Review: tunable nanophotonic metastructures Tunable nanophotonic metastructures offer new capabilities in computing, networking, and imaging by providing reconfigurability in computer interconnect topologies, new optical information processing capabilities, optical network switching, and image processing. Depending on the materials and the nanostructures employed in the nanophotonic metastructure devices, various tuning mechanisms can be employed. They include thermo-optical, electro-optical (e.g. Pockels and Kerr effects), magneto-optical, ionic-optical, piezo-optical, mechano-optical (deformation in MEMS or NEMS), and phase-change mechanisms. Such mechanisms can alter the real and/or imaginary parts of the optical susceptibility tensors, leading to tuning of the optical characteristics. In particular, tunable nanophotonic metastructures with relatively large tuning strengths (e.g. large changes in the refractive index) can lead to particularly useful device applications. This paper reviews various tunable nanophotonic metastructures' tuning mechanisms, tuning characteristics, tuning speeds, and non-volatility. Among the reviewed tunable nanophotonic metastructures, some of the phase-change-mechanisms offer relatively large index change magnitude while offering non-volatility. In particular, Ge-Sb-Se-Te (GSST) and vanadium dioxide (VO<sub>2</sub>) materials are popular for this reason. Mechanically tunable nanophotonic metastructures offer relatively small changes in the optical losses while offering large index changes. Electro-optically tunable nanophotonic metastructures offer relatively fast tuning speeds while achieving relatively small index changes. Thermo-optically tunable nanophotonic metastructures offer nearly zero changes in optical losses while realizing modest changes in optical index at the expense of relatively large power consumption. Magneto-optically tunable nanophotonic metastructures offer non-reciprocal optical index changes that can be induced by changing the magnetic field strengths or directions. Tunable nanophotonic metastructures can find a very wide range of applications including imaging, computing, communications, and sensing. Practical commercial deployments of these technologies will require scalable, repeatable, and high-yield manufacturing. Most of these technology demonstrations required specialized nanofabrication tools such as e-beam lithography on relatively small fractional areas of semiconductor wafers, however, with advanced CMOS fabrication and heterogeneous integration techniques deployed for photonics, scalable and practical wafer-scale fabrication of tunable nanophotonic metastructures should be on the horizon, driven by strong interests from multiple application areas. Nanophotonics ; Optical switch ; Materials science ; Optoelectronics ; Metamaterial ; Refractive index ; Photonics ; Optics ; Physics Transition Metal Oxide Nanomaterials ; Neural Networks and Reservoir Computing ; Photonic and Optical Devices
Authors: Dan Wang | Lin-Huan Du | Long Li | Yumeng Wei | Tao Wang | Jun Cheng | Bin Du | Yi Jia | Baoyi Yu
Source: Polymers (article, 2023-06-02)
Field: Chemistry — Inorganic Chemistry

Zn(II)-Based Mixed-Ligand-Bearing Coordination Polymers as Multi-Responsive Fluorescent Sensors for Detecting Dichromate, Iodide, Nitenpyram, and Imidacloprid Coordination polymers (CPs) are organo-inorganic porous materials consisting of metal ions or clusters and organic linkers. These compounds have attracted attention for use in the fluorescence detection of pollutants. Here, two Zn-based mixed-ligand-bearing CPs, [Zn<sub>2</sub>(DIN)<sub>2</sub>(HBTC<sup>2-</sup>)<sub>2</sub>] (CP-1) and [Zn(DIN)(HBTC<sup>2-</sup>)]·ACN·H<sub>2</sub>O (CP-2) (DIN = 1,4-di(imidazole-1-yl)naphthalene, H<sub>3</sub>BTC = 1,3,5-benzenetricarboxylic acid, and ACN = acetonitrile), were synthesized under solvothermal conditions. CP-1 and CP-2 were characterized by single-crystal X-ray diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis, elemental analysis, and powder X-ray diffraction analysis. Solid-state fluorescence analysis revealed an emission peak at 350 nm upon excitation at 225 and 290 nm. Fluorescence sensing tests showed that CP-1 was highly efficient, sensitive, and selective for detecting Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup> at 225 and 290 nm, whereas I<sup>-</sup> was only detected well at an excitation of 225 nm. CP-1 detected pesticides differently at excitation wavelengths of 225 and 290 nm; the highest quenching rates were for nitenpyram at 225 nm and imidacloprid at 290 nm. The quenching process may occur via the inner filter effect and fluorescence resonance energy transfer. Fluorescence ; Quenching (fluorescence) ; Thermogravimetric analysis ; Chemistry ; Ligand (biochemistry) ; Acetonitrile ; Materials science ; Nuclear chemistry ; Analytical Chemistry (journal) ; Photochemistry ; Organic chemistry Metal-Organic Frameworks: Synthesis and Applications ; Molecular Sensors and Ion Detection ; Crystal structures of chemical compounds
Authors: Magdalena Borowska | Krzysztof Jankowski
Source: Analytical and Bioanalytical Chemistry (review, 2023-03-23)
Field: Materials Science — Materials Chemistry

Basic and advanced spectrometric methods for complete nanoparticles characterization in bio/eco systems: current status and future prospects The use of engineered nanoparticles in the environment and human life has increased in the last 20 years. The risk assessment concerning application of nanomaterials in biological systems requires their thorough characterization. Understanding the correlations between physicochemical properties of nanoparticles concerning not only the size, particle size distribution, number concentration, degree of aggregation, or agglomeration but also solubility, stability, binding affinity, surface activity, chemical composition, and nanoparticle synthesis yield allows their reliable characterization. Thus, to find the structure-function/property relationship of nanoparticles, multifaceted characterization approach based on more than one analytical technique is required. On the other hand, the increasing demand for identification and characterization of nanomaterials has contributed to the continuous development of spectrometric techniques which enables for their qualitative and quantitative analysis in complex matrices giving reproducible and reliable results. This review is aimed at providing a discussion concerning four main aspects of nanoparticle characterization: nanoparticle synthesis yield, particle size and number concentration, elemental and isotopic composition of nanoparticles, and their surface properties. The conventional and non-conventional spectrometric techniques such as spectrophotometry UV-Vis, mass spectrometric techniques working in conventional and single-particle mode, or those based on optical emission detection systems are described with special emphasis paid on their advantages and drawbacks. The application and recent advances of these methods are also comprehensively reviewed and critically discussed. Characterization (materials science) ; Nanoparticle ; Nanotechnology ; Nanomaterials ; Analytical technique ; Particle size ; Materials science ; Chemistry ; Organic chemistry Nanoparticles: synthesis and applications ; Pharmaceutical and Antibiotic Environmental Impacts ; Gold and Silver Nanoparticles Synthesis and Applications
Authors: Ranjan Kumar Barik | Lilia M. Woods
Source: Scientific Data (article, 2023-04-21)
Field: Materials Science — Materials Chemistry

High throughput calculations for a dataset of bilayer materials Bilayer materials made of 2D monolayers are emerging as new systems creating diverse opportunities for basic research and applications in optoelectronics, thermoelectrics, and topological science among others. Herein, we present a computational bilayer materials dataset containing 760 structures with their structural, electronic, and transport properties. Different stacking patterns of each bilayer have been framed by analyzing their monolayer symmetries. Density functional theory calculations including van der Waals interactions are carried out for each stacking pattern to evaluate the corresponding ground states, which are correctly identified for experimentally synthesized transition metal dichalcogenides, graphene, boron nitride, and silicene. Binding energies and interlayer charge transfer are evaluated to analyze the interlayer coupling strength. Our dataset can be used for materials screening and data-assisted modeling for desired thermoelectric or optoelectronic applications. Stacking ; Silicene ; Monolayer ; Bilayer ; Materials science ; Bilayer graphene ; Density functional theory ; van der Waals force ; Graphene ; Thermoelectric materials ; Nanotechnology ; Condensed matter physics ; Chemical physics ; Computational chemistry ; Chemistry ; Physics ; Molecule Graphene research and applications ; 2D Materials and Applications ; Machine Learning in Materials Science
Authors: Yanyan Liu | Xi Xie | Zengqian Liu | Qin Yu | Xuegang Wang | Shaogang Wang | Qing Jia | Zhefeng Zhang | Rui Yang | Robert O. Ritchie
Source: Communications Materials (article, 2023-05-09)
Field: Materials Science — Materials Chemistry

Strong and tough magnesium-MAX phase composites with nacre-like lamellar and brick-and-mortar architectures Abstract Bioinspired nacre-like structures are effective in toughening materials, yet are difficult to construct in magnesium-ceramic systems. Here, a set of magnesium-MAX phase composites with nacre-like lamellar and brick-and-mortar architectures are fabricated by pressureless infiltration of the magnesium melt into ice-templated Ti 3 AlC 2 ceramic scaffolds. The structure and mechanical properties of the composites are elucidated with a special focus on the effects of the types of architectures (lamellar or brick-and-mortar) and matrices (pure magnesium or AZ91D alloy) on the toughening mechanisms. The nacre-like architectures are found to play a role in blunting the cracks via plastic deformation and microcracking, and shielding the cracks from applied stress by promoting crack deflection and uncracked-ligament bridging mechanisms. These composites achieve a good combination of specific strength and fracture toughness, which are superior to many other reported magnesium-ceramic and nacre-like metal-ceramic composite materials. Materials science ; Composite material ; Ceramic ; Lamellar structure ; Magnesium ; Toughness ; Fracture toughness ; Composite number ; Magnesium alloy ; Mortar ; Microstructure ; Metallurgy MXene and MAX Phase Materials ; Bone Tissue Engineering Materials ; Aluminum Alloys Composites Properties
Authors: Jonas Homrighausen | Ludwig Horsthemke | Jens Pogorzelski | Sarah Trinschek | Peter Glösekötter | Markus Gregor
Source: Sensors (article, 2023-01-18)
Field: Materials Science — Materials Chemistry

Edge-Machine-Learning-Assisted Robust Magnetometer Based on Randomly Oriented NV-Ensembles in Diamond Quantum magnetometry based on optically detected magnetic resonance (ODMR) of nitrogen vacancy centers in nano- or micro-diamonds is a promising technology for precise magnetic-field sensors. Here, we propose a new, low-cost and stand-alone sensor setup that employs machine learning on an embedded device, so-called edge machine learning. We train an artificial neural network with data acquired from a continuous-wave ODMR setup and subsequently use this pre-trained network on the sensor device to deduce the magnitude of the magnetic field from recorded ODMR spectra. In our proposed sensor setup, a low-cost and low-power ESP32 microcontroller development board is employed to control data recording and perform inference of the network. In a proof-of-concept study, we show that the setup is capable of measuring magnetic fields with high precision and has the potential to enable robust and accessible sensor applications with a wide measuring range. Magnetometer ; Microcontroller ; Computer science ; Quantum sensor ; Diamond ; Magnetic field ; Artificial neural network ; Enhanced Data Rates for GSM Evolution ; Artificial intelligence ; Electronic engineering ; Materials science ; Quantum ; Computer hardware ; Engineering ; Physics ; Quantum computer ; Quantum network Diamond and Carbon-based Materials Research ; High-pressure geophysics and materials ; Atomic and Subatomic Physics Research
Authors: Stoja Milovanović | Ivana Lukić | Gabrijela Horvat | Zoran Novak | Sulamith Frerich | Marcus Petermann | Carlos A. García‐González
Source: Polymers (review, 2023-02-09)
Field: Materials Science — Biomaterials

Green Processing of Neat Poly(lactic acid) Using Carbon Dioxide under Elevated Pressure for Preparation of Advanced Materials: A Review (2012–2022) This review provides a concise overview of up-to-date developments in the processing of neat poly(lactic acid) (PLA), improvement in its properties, and preparation of advanced materials using a green medium (CO<sub>2</sub> under elevated pressure). Pressurized CO<sub>2</sub> in the dense and supercritical state is a superior alternative medium to organic solvents, as it is easily available, fully recyclable, has easily tunable properties, and can be completely removed from the final material without post-processing steps. This review summarizes the state of the art on PLA drying, impregnation, foaming, and particle generation by the employment of dense and supercritical CO<sub>2</sub> for the development of new materials. An analysis of the effect of processing methods on the final material properties was focused on neat PLA and PLA with an addition of natural bioactive components. It was demonstrated that CO<sub>2</sub>-assisted processes enable the control of PLA properties, reduce operating times, and require less energy compared to conventional ones. The described environmentally friendly processing techniques and the versatility of PLA were employed for the preparation of foams, aerogels, scaffolds, microparticles, and nanoparticles, as well as bioactive materials. These PLA-based materials can find application in tissue engineering, drug delivery, active food packaging, compostable packaging, wastewater treatment, or thermal insulation, among others. Materials science ; Supercritical fluid ; Environmentally friendly ; Supercritical carbon dioxide ; Polymer ; Nanoparticle ; Chemical engineering ; Process engineering ; Nanotechnology ; Composite material ; Organic chemistry ; Chemistry biodegradable polymer synthesis and properties ; Polymer Foaming and Composites ; Carbon dioxide utilization in catalysis