jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Li Wu | Yun Ji | Huiyu Dan | Chris Bowen | Ya Yang
Source: InfoMat (article, 2023-03-10)
Field: Materials Science — Electronic, Optical and Magnetic Materials

A multifunctional optical‐thermal logic gate sensor array based on ferroelectric <scp>BiFeO<sub>3</sub></scp> thin films Abstract The growing need to process a diverse range of data has ignited effort in developing new multifunctional logic gate devices. In this article, we report a new form of all‐in‐one logic gate system that exploits the photoresponsivity of a self‐powered multifunctional BiFeO 3 (BFO) sensor material. The BFO sensor can not only detect both light intensity and temperature, but it can also execute three common logic gates of “AND”, “OR”, and “NOT” by converting optical and thermal inputs into electrical output. The diverse functionality of the BFO logic gate sensor array utilizes the unique light‐and temperature‐controlled energy band structure and carrier behavior of the BFO material. To demonstrate the potential, a 3 × 3 logic gate sensor matrix is developed, which successfully detected light and temperature distributions, and accurately produced the three basic logic gate operations. This work provides a new route to construct highly integrated multifunctional electronic devices for the advancement of large sensing, communication, and computing operations. image Logic gate ; Optoelectronics ; Materials science ; AND gate ; OR gate ; Electronic engineering ; Computer science ; Engineering Multiferroics and related materials ; Advanced Sensor and Energy Harvesting Materials ; Conducting polymers and applications
Authors: Tajwar A. Baigh | Fairooz Nanzeeba | Hasibur R. Hamim | Mohammad Ahsan Habib
Source: Heliyon (article, 2023-09-01)
Field: Materials Science — Polymers and Plastics

A comprehensive study on the effect of hybridization and stacking sequence in fabricating cotton-blended jute and pineapple leaf fibre biocomposites Developing biocomposites by hybridization, which is the combination of two or more materials, can be a potential solution for improving material recyclability and sustainability. This study focuses on creating a hybrid biocomposite reinforced with cotton-blended pineapple leaf fibre (PALF) fabric (174 GSM) and jute fibre fabric (265 GSM) which are thrown away by textile factories. The mechanical, moisture absorption, and vibration characteristics of four stacking sequences of hybrid composites and two unhybridized composites were analyzed. Results indicated that hybridization improved tensile and flexural characteristics compared to pineapple leaf fibre reinforced polymer (PFRP) composites. The jute fibre reinforced polymer (JFRP) composite exhibited the maximum tensile strength of 35.16 MPa, while the hybrid composites achieved a maximum of 32.16 MPa. Among the hybrid composites, jute layers on the outer plies (4P5J-2) demonstrated the maximum tensile modulus of 1.315 GPa. Additionally, the hybrid composite with three layers of jute plies between alternating layers of jute-pineapple plies showed the highest elongation at 15.94%. Among the hybrids, alternate stacking of jute/PALF plies (4P5J-1) gave a maximum flexural strength of 44.36 MPa, which is similar to JFRP (44.91 MPa) and a 78.57% increase in flexural modulus compared to PFRP composite, despite having the lowest tensile strength. Although the JFRP composite exhibited the highest impact strength, the hybrids still outperformed the PFRP composites. With hybridization, moisture absorption decreased, with a maximum of 29.50% compared to the JFRP composite. Furthermore, due to the spiral-like orientation of the yarns, stacking PALF plies on the outside can cause critical damping. Therefore, it is shown in this paper that both hybridization and stacking sequence can significantly influence composite performance. These findings also implies the utilization of textile industry's natural fibres to develop hybrid composites for automotive applications, like brake and accelerator pedals, for a greener future and effective waste material utilization. Ultimate tensile strength ; Materials science ; Composite material ; Flexural strength ; Biocomposite ; Composite number ; Stacking ; Flexural modulus ; Absorption of water ; Chemistry Natural Fiber Reinforced Composites ; Advanced Cellulose Research Studies ; Electrospun Nanofibers in Biomedical Applications
Authors: Rui Zhang | Jiangnan Xia | Ihab Ahmed | Andrew Gough | Ian Armstrong | Abhishek Upadhyay | Yalei Fu | Godwin Enemali | Michael Lengden | Walter Johnstone | Paul Wright | Krikor Ozanyan | Mohamed Pourkashanian | H. McCann | Chang Liu
Source: Sensors and Actuators B Chemical (article, 2023-08-23)
Field: Chemistry — Spectroscopy

A fast sensor for non-intrusive measurement of concentration and temperature in turbine exhaust Accurate and rapid measurement of water vapor concentration and temperature in the exhaust of gas turbine engines is critical for monitoring their health and operational performance. To monitor the two parameters simultaneously, a non-intrusive sensor based on tunable diode laser absorption spectroscopy is developed using 8 laser beams targeting 3 transitions of water vapor. The sensor has in situ validated on a commercial auxiliary power unit. Seven parallel laser beams at 5000.2 cm-1 are 6.3 mm spaced at the plume boundary to characterize the edge effect between hot exhaust plume and cold surrounding flow. One beam, operating at the dual wavenumbers of 7185.6 cm-1 and 7444.4 cm-1 penetrates the plume through centerline to measure temperature via ratio thermometry and then use this temperature information to obtain the concentration of water vapor. A temporal resolution of 4 milliseconds is achieved for the 8-beam measurement, enabling high-speed and simultaneous quantification of the edge effects and the plume parameters. Results indicate water vapor concentration and temperature in the exhaust measured by the developed sensor are highly consistent with the traditional benchmarks, e.g., extractive sampling and thermocouples, with a difference of 0.02% and 3°C, respectively. Enabled by its continuous millisecond-level measurements, the sensor, for the first time, reveals hidden engine behaviors and combustion dynamics that are unable to be observed by the traditional methods, thus facilitating next-generation real-time gas turbine engine control towards low emissions. Water vapor ; Plume ; Thermocouple ; Millisecond ; Materials science ; Temperature measurement ; Exhaust gas ; Combustion ; Turbine ; Environmental science ; Laser ; Optics ; Analytical Chemistry (journal) ; Aerospace engineering ; Chemistry ; Meteorology Spectroscopy and Laser Applications ; Advanced Sensor Technologies Research ; Combustion and flame dynamics
Authors: José Fernando Grass Ramírez | Ricardo Camacho Muñoz | Jhon Wilder Zartha Sossa
Source: Frontiers in Sustainable Food Systems (article, 2023-04-04)
Field: Chemistry — Inorganic Chemistry

Innovations and trends in the coconut agroindustry supply chain: A technological surveillance and foresight analysis Coconut ( Cocos nucifera ) is a raw material that has gained particular relevance for agribusiness in recent years. This has come about largely owing to the paradigm shift regarding its genuine nutritional benefits. It is especially due to innovation that has been incorporated into agro-industrial processing and the development of new products, and the fruits of such labor can be seen in the growing demand by consumers around the world. Integrally making full use of coconut, it turns out, is extremely important for agribusiness. Coconut indeed has become a benchmark, not only from the environmental dimension but also from the social and economic perspectives both of the communities that plant it and the agribusinesses that transform it. This study aims to identify technologies, new uses, trends, and innovations related to the coconut agro-industrial chain, as well as their prioritization, by means of a prospective study, using the Delphi method in two rounds. Two methods applied at the methodological level comprised a technological surveillance study by means of a literature review in a SCOPUS database, PatentsInspiration, complemented with commercial surveillance for the four major topics of plastic wood, coconut oil extraction, high salinity and moisture, and small-scale coconut by-products. Moreover, the Delphi method was used, in two rounds, with 178 topics, technologies, and innovations, classified into seven thematic groups. The Delphi was answered by 32 experts in the two rounds. Vantage Point text mining software was also applied for the analysis of the surveillance results. Within the seven thematic groups, the following 10 priority technologies are highlighted: functional phytochemicals, non-caloric sweeteners, coconut milk preservation technologies, water activity and shelf life, coconut sugar extraction methods, batch and continuous drying technologies, lyophilization, coconut fiber and shredded recycled PET, magnetic particle modification of activated carbon derived from coconut shell and biochar to effectively remove phenol from water, and biodegradable packaging for coconut derivatives. In addition, the following topics were prioritized in the sustainability grouper: sustainable agriculture, bioeconomy, family agriculture, and circular economy. Futures studies ; Delphi method ; Agribusiness ; Business ; Relevance (law) ; Delphi ; Supply chain ; Scale (ratio) ; Marketing ; Agriculture ; Agricultural science ; Computer science ; Geography ; Environmental science ; Political science Coconut Research and Applications ; Nanocomposite Films for Food Packaging
Authors: Huo Wen Chen | Chuchu Zheng | Fusheng Zhang | Zhuqin Zhang | Lijuan Zhang
Source: Science Advances (article, 2023-11-08)
Field: Materials Science — Materials Chemistry

One-step synthesis of Janus hydrogel via heterogeneous distribution of sodium α-linoleate driven by surfactant self-aggregation Janus adhesive hydrogels have one-sided adhesive properties and hold promising applications in the health care field. However, a simple method for synthesizing Janus hydrogels is still lacking. In this study, we introduce an innovative method to prepare Janus hydrogels by harnessing a fundamental phenomenon: the self-aggregation of surfactants at high concentrations at the water-air interface. By combining a small amount [0.8 to 3.2 weight %, relative to mass of acrylamide (AM)] of sodium α-linoleate (LAS) with AM through free radical polymerization, we have synthesized Janus adhesive hydrogels. The Janus hydrogels exhibit remarkable adhesive strength and adhesive differences, with the top side (84 J m<sup>-2</sup>) being 21 times stronger than the bottom side, also an excellent elongation rate. Through comprehensive experiments, including chemical composition, surface morphology, and molecular dynamics (MD) simulations, we thoroughly investigate the mechanisms of the hydrogel's heterogeneous adhesion. This study presents an easy, efficient, and innovative method for preparing one-sided adhesive hydrogels. Self-healing hydrogels ; Janus ; Adhesive ; Janus particles ; Chemical engineering ; Pulmonary surfactant ; Sodium alginate ; Adhesion ; Nanotechnology ; Materials science ; Polymer ; Polymerization ; Chemistry ; Polymer chemistry ; Sodium ; Layer (electronics) ; Composite material ; Organic chemistry Pickering emulsions and particle stabilization ; Polymer Surface Interaction Studies ; Advanced Polymer Synthesis and Characterization
Authors: Heri Septya Kusuma | Puput Yugiani | Ayu Iftah Himana | Amri Aziz | Deva Afriga Wardana Putra
Source: Polymer Bulletin (review, 2023-02-23)
Field: Materials Science — Biomaterials

Reflections on food security and smart packaging Food packaging ; Business ; Active packaging ; Food safety ; Harm ; Food industry ; Garbage ; Food waste ; Product (mathematics) ; Sustainability ; Quality (philosophy) ; Food quality ; Waste management ; Risk analysis (engineering) ; Food science ; Engineering Nanocomposite Films for Food Packaging ; Advanced Sensor and Energy Harvesting Materials ; Consumer Packaging Perceptions and Trends
Authors: Jake Kline | Michael W. Belford | Cornelia Boeser | Romain Huguet | Ryan T. Fellers | Joseph B. Greer | Sylvester Greer | David M. Horn | Kenneth R. Durbin | Jean‐Jacques Dunyach | Nagib Ahsan | Luca Fornelli
Source: Journal of Proteome Research (article, 2023-09-29)
Field: Chemistry — Spectroscopy

Orbitrap Mass Spectrometry and High-Field Asymmetric Waveform Ion Mobility Spectrometry (FAIMS) Enable the in-Depth Analysis of Human Serum Proteoforms Blood serum and plasma are arguably the most commonly analyzed clinical samples, with dozens of proteins serving as validated biomarkers for various human diseases. Top-down proteomics may provide additional insights into disease etiopathogenesis since this approach focuses on protein forms, or proteoforms, originally circulating in blood, potentially providing access to information about relevant post-translational modifications, truncations, single amino acid substitutions, and many other sources of protein variation. However, the vast majority of proteomic studies on serum and plasma are carried out using peptide-centric, bottom-up approaches that cannot recapitulate the original proteoform content of samples. Clinical laboratories have been slow to adopt top-down analysis, also due to higher sample handling requirements. In this study, we describe a straightforward protocol for intact proteoform sample preparation based on the depletion of albumin and immunoglobulins, followed by simplified protein fractionation via polyacrylamide gel electrophoresis. After molecular weight-based fractionation, we supplemented the traditional liquid chromatography-tandem mass spectrometry (LC-MS<sup>2</sup>) data acquisition with high-field asymmetric waveform ion mobility spectrometry (FAIMS) to further simplify serum proteoform mixtures. This LC-FAIMS-MS<sup>2</sup> method led to the identification of over 1000 serum proteoforms < 30 kDa, outperforming traditional LC-MS<sup>2</sup> data acquisition and more than doubling the number of proteoforms identified in previous studies. Orbitrap ; Ion-mobility spectrometry ; Mass spectrometry ; Chemistry ; Chromatography ; Top-down proteomics ; Fractionation ; Tandem mass spectrometry ; Proteomics ; Computational biology ; Protein mass spectrometry ; Biochemistry ; Biology Mass Spectrometry Techniques and Applications ; Advanced Proteomics Techniques and Applications ; Metabolomics and Mass Spectrometry Studies
Authors: William Doniger | Cody Falconer | Adrien Couet | Kumar Sridharan
Source: Journal of Nuclear Materials (article, 2023-03-12)
Field: Materials Science — Materials Chemistry

Corrosion of 316L &amp; 316H stainless steel in molten LiF-NaF-KF (FLiNaK) Materials science ; Corrosion ; Metallurgy ; Dissolution ; Grain boundary ; Carbon steel ; Overpotential ; Pyrolytic carbon ; Chemical engineering ; Microstructure ; Pyrolysis ; Electrochemistry ; Chemistry Graphite, nuclear technology, radiation studies ; Fusion materials and technologies ; Nuclear Materials and Properties
Authors: Aniket Mishra | Xuefeng Cong | Masayoshi Nishiura | Zhaomin Hou
Source: Journal of the American Chemical Society (article, 2023-07-28)
Field: Chemistry — Organic Chemistry

Enantioselective Synthesis of 1-Aminoindanes via [3 + 2] Annulation of Aldimines with Alkenes by Scandium-Catalyzed C–H Activation Multisubstituted chiral 1-aminoindanes are important components in many pharmaceuticals and bioactive molecules. Therefore, the development of efficient and selective methods for the synthesis of chiral 1-aminoindanes is of great interest and importance. In principle, the asymmetric [3 + 2] annulation of aldimines with alkenes through C-H activation is the most atom-efficient and straightforward route for the construction of chiral 1-aminoindanes, but such a transformation has remained undeveloped to date probably due to the lack of suitable catalysts. Herein, we report for the first time the enantioselective [3 + 2] annulation of a wide range of aromatic aldimines and alkenes <i>via ortho</i>-C(sp<sup>2</sup>)-H activation by chiral half-sandwich scandium catalysts, which provides a straightforward route for the synthesis of multisubstituted chiral 1-aminoindanes. This protocol features 100% atom-efficiency, broad functional group compatibility, and high regio-, diastereo-, and enantioselectivity (up to >19:1 dr and 99:1 er). Remarkably, by fine-tuning the sterics of the chiral ligand around the catalyst metal center, the diastereodivergent asymmetric [3 + 2] annulation of aldimines and styrenes has been achieved with a high level of diastereo- and enantioselectivity, offering an efficient method for the synthesis of both the <i>trans</i> and <i>cis</i> diastereomers of a novel class of chiral 1-aminoindane derivatives containing two contiguous stereocenters from the same set of starting materials. Moreover, the asymmetric [3 + 2] annulation of aldimines with aliphatic α-olefins, norbornene, and 1,3-dienes has also been achieved. Aldimine ; Enantioselective synthesis ; Annulation ; Chemistry ; Stereocenter ; Catalysis ; Combinatorial chemistry ; Steric effects ; Diastereomer ; Stereochemistry ; Norbornene ; Organic chemistry ; Monomer Catalytic C–H Functionalization Methods ; Asymmetric Hydrogenation and Catalysis ; Synthesis and Catalytic Reactions
Authors: Aarthi Kannan | Chiddharth Muthuraj | Abinaya Mayavan | Sakthivel Gandhi
Source: Materials Today Chemistry (article, 2023-05-12)
Field: Materials Science — Materials Chemistry

Multifaceted applications of polyhedral oligomeric silsesquioxane and their composites Silsesquioxane ; Nanotechnology ; Materials science ; Hybrid material ; Nanomaterials ; Nanocomposite ; Computer science ; Polymer ; Composite material Silicone and Siloxane Chemistry ; Marine Biology and Environmental Chemistry ; Advanced Sensor and Energy Harvesting Materials
Authors: Kui He | Yuan‐Fu Ding | Zhipeng Zhao | Ben Liu | Wenyan Nie | Xiaoxi Luo | Hua‐Zhong Yu | Jinbin Liu | Ruibing Wang
Source: Advanced Functional Materials (article, 2023-10-17)
Field: Materials Science — Materials Chemistry

Cucurbit[7]uril‐Mediated Organ‐Specific Delivery of Ultrasmall NIR‐II Luminescent Gold Nanocarriers for Therapy of Acute Kidney Injury Abstract The design of nanocarriers that selectively target the liver or kidney is a significant challenge in drug delivery due to the diverse physiological structures and inherent characteristics, as well as their distinct requirements for nanocarriers. Herein, a strategy to synthesize a series of second near‐infrared region (NIR‐II) emitting gold nanocarriers for fine‐tuning liver or kidney‐specific delivery via altering their surface chemistry using cucurbit[7]uril (CB[7]) and Cys‐Arg‐Gly‐Asp (CRGD) peptide is reported. Accordingly, it shows that ultrasmall nanocarriers can facilitate kidney‐targeted delivery in cisplatin‐induced acute kidney injury (AKI) mice, which significantly boosted the accumulation of dexamethasone (DXM) loaded onto the nanocarriers at the site of injured kidneys, thereby achieving improved therapeutic results. Thus, this organ‐specific delivery strategy holds tremendous promise for improving drug delivery efficiency and providing new perspectives and methods for personalized treatments. Nanocarriers ; Drug delivery ; Materials science ; Acute kidney injury ; Nanotechnology ; Kidney ; Drug ; Pharmacology ; Targeted drug delivery ; Medicine ; Internal medicine Nanocluster Synthesis and Applications ; Luminescence and Fluorescent Materials ; Nanoplatforms for cancer theranostics
Authors: Wenhao Xiang | Ziqi Hu | Jinpeng Xin | Huaimin Jin | Zhanxin Jiang | Xinyi Han | Muqing Chen | Yang‐Rong Yao | Shangfeng Yang
Source: Journal of the American Chemical Society (article, 2023-10-03)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Steering Single-Electron Metal–Metal Bonds and Hyperfine Coupling between a Transition Metal-Lanthanide Heteronuclear Bimetal Confined in Carbon Cages Metal complexes bearing single-electron metal-metal bonds (SEMBs) exhibit unusual electronic structures evoking strong magnetic coupling, and such bonds can be stabilized in the form of dimetallofullerenes (di-EMFs) in which two metals are confined in a carbon cage. Up to now, only a few di-EMFs containing SEMBs are reported, which are all based on a high-symmetry icosahedral (<i>I</i><sub><i>h</i></sub>) C<sub>80</sub> cage embedding homonuclear rare-earth bimetals, and a chemical modification of the <i>I</i><sub><i>h</i></sub>-C<sub>80</sub> cage is required to stabilize the SEMB. Herein, by introducing 3d-block transition metal titanium (Ti) along with 4f-block lanthanum (La) into the carbon cage, we synthesized the first crystallographically characterized SEMB-containing 3d-4f heteronuclear di-EMFs based on pristine fullerene cages. Four novel La-Ti heteronuclear di-EMFs were isolated, namely, LaTi@<i>D</i><sub>3<i>h</i></sub>(5)-C<sub>78</sub>, LaTi@<i>I</i><sub><i>h</i></sub>(7)-C<sub>80</sub>, LaTi@<i>D</i><sub>5<i>h</i></sub>(6)-C<sub>80</sub>, and LaTi@<i>C</i><sub>2<i>v</i></sub>(9)-C<sub>82</sub>, and their molecular structures were unambiguously determined by single-crystal X-ray diffraction. Upon increasing the cage size from C<sub>78</sub> to C<sub>82</sub>, the La-Ti distance decreases from 4.31 to 3.97 Å, affording fine-tuning of the metal-metal bonding and hyperfine coupling, as evidenced by an electron spin resonance (ESR) spectroscopic study. Density functional theory (DFT) calculations confirm the existence of SEMB in all four LaTi@C<sub>2<i>n</i></sub> di-EMFs, and the accumulation of electron density between La and Ti atoms shifts gradually from the proximity of the Ti atom inside C<sub>78</sub> to the center of the LaTi bimetal inside C<sub>82</sub> due to the decrease of the La-Ti distance. The electronic properties of LaTi@C<sub>2<i>n</i></sub> heteronuclear dimetallofullerenes differ apparently from their homonuclear La<sub>2</sub>@C<sub>2<i>n</i></sub> counterparts, revealing the peculiarity of heteronuclear dimetallofullerenes with the involvement of 3d-block transition metal Ti. Heteronuclear molecule ; Chemistry ; Crystallography ; Superatom ; Electron paramagnetic resonance ; Endohedral fullerene ; Metal ; Transition metal ; Bimetal ; Hyperfine structure ; Homonuclear molecule ; Density functional theory ; Fullerene ; Computational chemistry ; Molecule ; Atomic physics ; Physical chemistry ; Stereochemistry ; Nuclear magnetic resonance ; Nuclear magnetic resonance spectroscopy Magnetism in coordination complexes ; Fullerene Chemistry and Applications ; Molecular Junctions and Nanostructures