bluuebunny/crossref_metadata_2025_split huggingface dataset:
Melt‐spun poly(ethylene terephthalate‐co‐1,4‐cyclohexanedimethylene terephthalate) (PETG) copolyester fibers: Synergistic effect of chemical and crystal structure regulation
Authors: Zhang Zhihao , Yao Zhiyuan , He Yujing , Yu Senlong , Chen Meijia , Shi Zhenjiang , He Jiaxu , Xiang Hengxue , Zhu Meifang 
Published: December 2024

AbstractIn this work, a series of 1,4‐cyclohexanedimethanol (CHDM)‐based copolyester fibers are prepared by chemical structure design and crystal structure regulation. The chemical structures of poly(ethylene terephthalate‐co‐1,4‐cyclohexanedimethylene terephthalate, (PETG)) copolyesters are first confirmed by 1H‐ and 13C‐nuclear magnetic resonance which indicates that all copolyesters are random copolyesters. Then, the crystallization and melting behavior, thermal stability, and mechanical properties of copolyesters are significantly affected by the CHDM content and CHDM cis‐trans isomerism ratio, showing that trans‐CHDM can effectively improve the comprehensive performance of PETG copolyesters. Besides, the influence of the CHDM monomer (amount and cis‐trans isomerism ratio) and melt‐spinning drawing process on the crystal structure and mechanical properties (tensile strength, elongation) is also investigated by wide‐angle X‐ray diffraction, small‐angle X‐ray scattering, and tensile testing. Especially, the resultant PETG30‐trans80 copolyester fibers exhibit good mechanical properties, and the tensile strength and elongation are 113.9 MPa and 136.5%, respectively. Therefore, our work provides a promising strategy for the fabrication of copolyester fiber.Highlights
Bio‐based PETG copolyester was obtained.
Synergistic effects of a chemical structure and drawing process of PETG fiber were discussed.
The influence of drawing process on crystallization, and orientation of fiber properties was studied.
Study on properties of natural latex foam composites modified by corn straw‐derived biomass fiber
Authors: Li Xiaoye , Liu Huamin , Xue Yuanyuan , Zhu Yanchao , Li Juntao , Li Xinyao , Gao Shuang 
Published: December 2024

AbstractReinforcing fillers play a pivotal role in achieving superior performance of latex foam materials. The corn stalk, as an agricultural by‐product, possesses the advantages of abundant availability, renewability, and environmental friendliness. In this study, natural rubber latex foam (NRLF) was prepared using the Dunlop method with the addition of corn stalk (CS) as a reinforcing agent. To further enhance the adhesion between the biomass fiber and matrix, alkali‐treated CS/natural rubber latex foam (ACS/ NRLF) was prepared by modifying the CS with a 6% sodium hydroxide solution. The effects of different amounts of CS and ACS on the properties of the composites were investigated. The results demonstrate that loading 5phr of ACS significantly improves mechanical properties such as tensile strength, compressive capacity, recovery rate, and other properties in ACS/NRLF materials. Furthermore, surface treatment of the fiber is shown to greatly enhance material performance. This indicates that CS has great potential in the application of latex foam materials.
Bioorthogonal Reactions of Oxadiazinones With Strained trans‐Cyclooctenes
Authors: Morrill Kaitlyn , Josephson Jason D. , Bilodeau Didier A. , Altamimi Baha , Nakajima Masaya , Pezacki John Paul 
Published: December 2024

ABSTRACTWe report quantitative details of addition reactions of a strained trans‐cyclooctene with a series of oxadiazinones, analogues of the bioorthogonally fruitful tetrazines. Both experimental and computational studies of these ligations reveal their sensitivity to differing electronic character of oxadiazinone substituents. Achieving rate constants up to 9.5 L mol−1 s−1, oxadiazinones demonstrate untapped potential for bioorthogonal applications.
Selective Killing of Human Breast Cancer Cells by Plasma‐Treated L‐Arginine Solution
Authors: Du Liyin , Miron Camelia , Kondo Takashi , Kumagai Jun , Mizuno Masaaki , Toyokuni Shinya , Kajiyama Hiroaki , Hori Masaru , Tanaka Hiromasa 
Published: December 2024

ABSTRACTl‐arginine is a nonessential amino acid that plays an important role in normal immune function and can be used as an adjuvant treatment for cancers. The antitumor effect of nonequilibrium atmospheric pressure plasma treated l‐arginine solutions (PTA) was investigated in this research. The cancer‐specific killing effect of PTA on human breast epithelial cells (MCF‐10A) and human breast cancer cells (MCF‐7) was proved. Liquid chromatography‐tandem mass spectrometry was used to analyze the organic compounds formed in PTA, and their effects were individually evaluated by MTS assay, revealing that some compounds inhibited cell proliferation but lacked selectivity. PTA's selective cytotoxicity may result from a mixture of various compounds formed in plasma combined in a certain concentration.
Direct Iron Phthalocyanine (FePc) Incorporation on Graphene Nanoplatelets (GNP) as Fe–N Complex via Plasma Engineering for Advanced Oxygen Reduction Reaction
Authors: Kim Seonghee , Lee Sungho , Li Oi Lun 
Published: December 2024

ABSTRACTHerein, we applied plasma engineering to modify the Fe‐N complex directly on the graphene nanoplatelet (GNP) substrate as advanced ORR electrocatalysts. Plasma treatment activated and effectively anchored the Fe‐N4 structure on GNP without degradation. From XPS analysis, the binding energy of Fe 2p was shifted towards higher energy in FePc/GNP‐Plasma with enhanced charge delocalization of Fe–N complex. Electrochemical analyses showed FePc/GNP‐Plasma electrocatalyst achieved a half‐wave potential of 0.91 V vs. RHE and six times higher kinetic current density compared to commercial 20 wt.% Pt/C. The results highlight that forming the charge delocalization via plasma engineering promotes ORR activity, offering new insights for plasma surface modification of carbon‐based electrocatalysts for renewable energy applications, including fuel cell and metal‐air batteries.
A vorticity budget for theoretical and convectively coupled equatorial Rossby waves: Dynamical propagation and growth mechanisms
Authors: Matthews Adrian J. 
Published: December 2024

AbstractConvectively coupled equatorial Rossby waves (CCERWs) are westward‐propagating tropical weather systems that can trigger extreme precipitation and flooding. Here, vorticity budgets are used to determine their dynamical mechanisms of propagation and growth. First, an analytical solution to the vorticity budget of theoretical dry equatorial Rossby waves is presented. Westward propagation arises entirely from the planetary vorticity advection () term, where high‐magnitude planetary vorticity is advected equatorward from higher latitudes to the west of cyclonic perturbations in the Rossby‐wave structure. This is the classical Rossby‐wave propagation mechanism. There is one other non‐zero term in the vorticity budget: the vortex stretching () term has a (weak) eastward propagation tendency, mainly due to the convergence in the meridional wind structure to the east of the cyclonic perturbations. This acts to slow the overall westward propagation down. Both these terms are in quadrature with the vorticity structure and hence the theoretical waves are neutral. A vorticity budget of observed CCERWs is then presented, using reanalysis data. The primary westward propagation mechanism is still the planetary vorticity advection term. However, the convergence centres are now aligned with the cyclonic vorticity centres, rather than a quarter cycle to the east. Hence the vortex stretching () term is now in phase with the vorticity, leading to growth of CCERWs. There is an even stronger growth contribution from the nonlinear vortex stretching term. Horizontal vorticity advection and subgrid‐scale processes both act to damp the CCERW. The total source term is one of westward propagation and growth. This diagnostic vorticity‐budget approach can be applied to inform the assessment of forecast skill and model development.
A Facile One‐Pot Synthesis of New Fused Indole Pyrazole Derivatives and Their Anticancer and Antidiabetic Activities
Authors: Majola Senzekile , Sabela Myalowenkosi , Gengan Robert , Makhanya Talent 
Published: December 2024

AbstractIndole‐pyrazole hybrids are intriguing due to their potential for synergistic pharmacological effects, unlike molecules with only one pharmacophore. This study presents a one‐pot synthesis of fused indole‐pyrazole derivatives, bis indole‐pyrazole 4a and chromone indole‐pyrazole 4b using an aldehyde, thiosemicarbizide, and an indole, as potential anticancer and antidiabetic agents. The synthesized compounds were characterized using Fourier transform infrared (FTIR), nuclear magnetic resonance (NMR), and time‐of‐flight mass spectrometry (TOF‐MS). Initially, a mutagenicity test was performed, and the compounds showed no significant increase in revertant colonies against Salmonella typhimurium TA 98 and TA 100 strains. In the MTT assay for cytotoxicity against two human cancer cell lines, A549 and HepG‐2; and one normal cell line, HEK 293. Compound 4b showed high potency against the cancer cell lines, with IC50 values of 18.70 and 50.07 µg/mL, respectively, whereas both compounds showed low inhibition level against HEK 293 at 100 µg/mL. The in vitro inhibition of α‐amylase and α‐glucosidase, compound 4a demonstrated excellent in vitro inhibition of α‐amylase and α‐glucosidase, with the IC50 values of 3.9 µg/mL and 12.1 µg/mL, respectively.
Hierarchical Porous Fe3C@Fe‐N‐C Catalysts from Tannin‐Fe(III) Complexes for Efficient Oxygen Reduction
Authors: Pérez‐Rodríguez Sara , Torres Daniel , Izquierdo María Teresa , Zitolo Andrea , Bibent Nicolas , Sougrati Moulay , Jaouen Frédéric , Celzard Alain , Fierro Vanessa 
Published: December 2024

AbstractThe rational design of metal‐nitrogen‐doped carbons (M‐N‐C) from available and cost‐effective sources featuring high electrocatalytic performance and stability is attractive for the development of viable low‐temperature fuel cells. Herein, mimosa tannin, an abundant polyphenol easily extracted from the Mimosa plant, is used as a natural carbon source to produce a tannin‐Fe(III) coordination complex. This process is assisted by Pluronic F127, which acts as both a surfactant and a promoter of Fe‐Nx active sites. After carbonization in the presence of urea as a nitrogen precursor, this organic tannin‐Fe(III) framework produces Fe3C nanoparticles encapsulated on a Fe‐N‐C single‐atom catalyst with hierarchical porosity. The optimal catalyst, with a Pluronic F127/mimosa tannin mass ratio of 0.5, exhibits high ORR performance in both alkaline and acidic electrolytes, with half‐wave potentials of 0.87 and 0.74 V versus RHE, respectively. In addition, good performance is achieved in practical hydrogen polymer‐electrolyte membrane fuel cells using OH−‐ or H+‐conducting membranes with peak power densities of 242 and 200 mW cm−2 at cell voltages of 0.43 and 0.3 V, respectively. The synthetic approach can be explored to design new renewable M‐N‐C electrodes for electrochemical energy conversion or storage devices due to tannin's exceptional ability to coordinate metals.
Oxygen‐Independent Photodynamic Therapy‐Mediated Selective Consumption of M1 Macrophage Against Ventricular Arrhythmias via Sympathetic Neuromodulation
Authors: Lin Heng , Liu Hengyang , Xi Haosong , Li Dangwei , Jiang Pengcheng , Wang Yijun , Cheng Siyi , Jiang Hong , Deng Hongbing , Zhou Xue , Yu Lilei 
Published: December 2024

AbstractThe occurrence of myocardial infarction (MI)‐induced malignant ventricular arrhythmias (VAs) is closely associated with the hyperactivation of left stellate ganglion (LSG). Proinflammatory M1 macrophage is reported to aggravate sympathetic overactivation and cause VAs. Therefore, the depletion of M1 macrophage is anticipated to inhibit LSG overactivation and alleviate MI‐induced VAs. Herein, oxygen‐independent photodynamic therapy (Oi‐PDT) combined with M1 macrophage targeting is applied to selectively deplete M1 macrophage in LSG and further treat MI‐induced VAs. Oi‐PDT, which overcomes the limitation of extremely dependence on oxygen content in traditional PDT, is constructed through the generation of oxidizing photogenerated holes (h+) under the irradiation of near‐infrared (NIR) light on the prepared Oi‐PDT agent (PPSCD). Meanwhile, PPSCD targets M1 macrophage through conjunction with SR‐A receptor. The selective consumption of M1 macrophage is attributed to both apoptosis and ferroptosis induced by h+, 1O2, and O2•− generated in Oi‐PDT. In vivo tests indicated neural activity experienced a notable reduction from 104.5 ± 2.9 to 51.5 ± 6.7 after MI with Oi‐PDT treatment, thereby significantly inhibited VAs. The implementation of this study provides a promising strategy for selective consumption of M1 macrophages and treatment of VAs induced by MI.
Emergent Mid‐Infrared Nonlinear Optical Candidates With Targeted Balance Performances
Authors: Huang Junben , Abudurusuli Ailijiang , Yang Zhihua , Pan Shilie 
Published: December 2024

AbstractInfrared nonlinear optical (NLO) crystal materials exert a crucial role in laser technology, which is extensively utilized in the fields of medical laser, long‐distance laser communication, infrared laser guidance, etc. Currently, the commercially available infrared NLO crystals are diamond‐like structural crystals AgGaQ2 (Q = S, Se) and ZnGeP2. However, their applications are significantly limited owing to their inherent drawbacks, such as low laser damage thresholds and narrow band gaps. Therefore, exploring novel infrared NLO materials with excellent performances is urgent. At present, candidate systems for exploring infrared NLO materials mainly are chalcogenides, pnictides, metal halides for popular systems, and chalcohalides, oxyhalides, heavy metal oxides, oxychalcogenides, nitrides for emergent systems. Notably, among them, pnictides generally exhibited a stronger NLO performance than other systems, but a narrower band gap. Accordingly, after the detailed literature survey, to the best knowledge, ≈139 compounds achieve balanced performances (Eg ≥ 3.0 eV, dij ≥ 0.5 × AgGaS2) in the remaining systems, in which there are 2 metal halides, 9 oxyhalides, 10 heavy metal oxides, 17 nitrides, 19 oxychalcogenides, 22 chalcohalides, and 60 chalcogenides. Thus, the structure‐property survey of these compounds produces the practical design strategy to explore emergent infrared NLO crystal materials with balanced properties.
Developing High Energy Density Li‐S Batteries via Pore‐Structure Regulation of Porous Carbon Based Electrocatalyst
Authors: Zhang Pengpeng , Wang Chen , Zhang Jingbo , Hou Ruohan , Zhang Shijie , Liu Kangli , Silva S. Ravi P. , Zhang Peng , Shao Guosheng 
Published: December 2024

AbstractThe mesopores and macropores within porous carbon materials help increase the surface for the depostion of solid‐state products, reduce the Li2S film thickness, enhance electron and mass transport, and accelerate the reaction kinetics. However, an excessive amount of mesopores and macropores can lead to increased electrolyte consumption, particularly at high sulfur loadings, where excessive electrolyte usage hampers the enhancement of practical energy density in lithium‐sulfur (Li‐S) batteries. A rational pore structure can minimize the amount of electrolyte to fill the pores, thereby reducing electrolyte consumption while achieving rapid reaction kinetics and a high gravimetric energy density. In this work, the pore structure of carbon nanosheet‐based electrocatalysts is precisely controlled by adjusting the content of a water‐soluble potassium chloride template, allowing for in‐depth investigation of the relationship between pore structure, electrolyte usage, and electrochemical performance in Li‐S batteries. The molybdenum carbide‐embedded carbon nanosheet (MoC‐CNS) electrocatalyst, with an optimized pore structure, facilitates exceptional electrochemical performance under high sulfur loading and lean electrolyte conditions. Ultimately, the MoC‐CNS‐3‐based Li‐S battery achieved stable operation over 50 cycles under high sulfur loading (12 mg cm−2) and a low electrolyte‐to‐sulfur (E/S) ratio of 4 uL mg−1, delivering a high gravimetric energy density of 354.5 Wh kg−1. This work provides a viable strategy for developing high‐performance Li‐S batteries.
Solubility‐Limited Small Molecule for Stable High‐Capacity Potassium Storage
Authors: Wu Lei‐Feng , Xiao Ji‐Miao , Luan Cui‐Zhou , Xie Mo , Li Yu‐Yang , Bin De‐Shan , Zuo Jing‐Lin 
Published: December 2024

AbstractSmall molecule electrode materials with superb redox activity have significant applied implications for K‐ion storage, but they face significant challenges like high solubility in electrolytes and low conductivity, limiting their capacity, rate, and cycling stability. Herein, a series of Ni‐bis(dithiolene) (NiS4)‐based small molecules are designed with control of various redox‐active substitutional groups for K‐ion batteries anode materials. It is identified that bis[1,2‐di(pyridine‐4‐yl) ethylene‐1,2‐dithiolate] nickel Ni[C2S2Py2]2 demonstrates a high reversible specific capacity (399 mAh g−1 at 0.03 A g−1) with an impressive rate capability and an exceptional cycling stability (over 99% capacity retention after 1600 cycles). Its extraordinary performance is attributed to the synergy between the NiS4 unit and pyridine group, providing abundant K⁺ storage sites, impressive conductivity, and low solubility. The comprehensive characterizations and theoretical simulation confirm the multistep K⁺ storage mechanism in Ni[C2S2Py2]2, enabling fast charge transfer and excellent rate performance. This work offers new perspectives in building solubility‐limited and conductive small molecule electrode materials with high redox activity for non‐aqueous rechargeable batteries.
Active Corrosion Triggered Liquid Metal Dewetting
Authors: Wu Wangyan , Chai Guangyu , Luo Wei 
Published: December 2024

AbstractLiquid metals (LMs), as an emerging group of functional materials, possess the necessary conditions for dewetting. However, LM dewetting garnered grossly inadequate attention. Here, an intriguing phenomenon termed active corrosion‐triggered dewetting (ACT‐Dewetting) of LMs is reported. Distinct from traditional dewetting which mainly depends on physical treatments (e.g., laser irradiation, evaporation) for initiation, the ACT‐Dewetting couples mechanics, chemistry, and physics, which enables gallium (Ga)‐based and Ga‐free (e.g., fusible alloy) LMs spread on sacrificial metals (e.g., Al, Mg) readily dewet into numerous microdroplets in seconds along with substrate corrosion and gas emission. This gives birth to a novel method for fabricating LM microdroplets. Besides, due to the consistent metallic luster of painted LMs on various substrates and selective corrosion of substrates, ACT‐Dewetting is demonstrated as an effective information encryption method. With these proof‐of‐concept illustrations, it is anticipated this ACT‐Dewetting strategy would facilitate more innovative studies of LMs.
A Chemically Robust Microporous Zn‐MOF for C2H2 Separation from CO2 and Industrially Relevant Four Component Gas Mixtures
Authors: Pramanik Bikram , Sahoo Rupam , Krishna Rajamani , Das Madhab C. 
Published: December 2024

AbstractThe separation and purification of acetylene from the light hydrocarbon gas mixtures is considered as one of the most industrially challenging task for the production of fine chemicals. Though metal–organic frameworks (MOFs) are promising candidates for such separation and offer a cost and energy‐efficient pathway, achieving the trade‐off between sorption capacity and separation selectivity along with framework robustness is a daunting task and demands effective design. Herein, a new 3D chemically stable MOF, IITKGP‐24 (stable over a wide range of aqueous pH solution, pH = 2–12) is developed, displaying excellent separation selectivity of 13.9 for C2H2/CO2 (50:50) even at ambient conditions and maintained a trade‐off between sorption capacity and separation selectivity. Most importantly, the breakthrough performance analysis under the industrially relevant gas mixture composition revealed that the developed framework possesses excellent separation of acetylene from not only C2H2/CO2 (50:50) gas mixtures but also from the quaternary C2H2/C2H4/C2H6/CO2 (25:25:25:25) feed gas streams. Separation of C2H2 from such a four component gas mixture by MOFs is unexplored. The exceptional framework robustness, high C2H2/CO2 uptake ratio, low heat of adsorption, and excellent recyclability with easy regenerability made the developed framework promising candidate toward this challenging separation.
Bimetallic Modification Strategy: Ultra‐Thin Ni‐Ag Coating Prepared via One‐Step Method Enables Highly Reversible Zn Anode
Authors: Yan Zongkai , Cheng Qi , Sun Mengxuan , Wu Baoshan , Zhu Yanlin , Tong Zuwen , Li Ming , Jia Chunyang , Zhao Panfeng 
Published: December 2024

ABSTRACTFor aqueous zinc ion batteries (AZIBs), Zn dendritic growth and hydrogen evolution reaction (HER) usually result in the severe degradation of bare Zn anodes. Although the alloy‐modified anodes can improve the reversibility of the Zn plating/stripping process, the regulation of alloy components is too complex to meet the requirements for large‐scale fabrication. Herein, a Ni‐Ag bimetallic coating on Zn foils (Ni‐Ag@Zn) is prepared by magnetron co‐sputtering. Owing to this bimetallic coating with the ultrathin thickness of 200 nm, the cycling life of Ni‐Ag@Zn‐based symmetric cells attains more than 5000 h at current density of 1 mA/cm2 and areal capacity of 1 mA h/cm2, exceeding most of the reported binary/ternary‐alloy‐based symmetric cells. To the suppression of dendrite growth and HER, the regulation mechanism of the bimetallic coating on Zn deposition is assigned to the synergistic effect, the suppressed HER by the strong adsorption of Ag with H ions and the flatted Zn deposition via the strong adsorption of Ni/Ag with Zn ions. To our knowledge, both the bimetallic and ultrathin features have not been reported to optimize the anodes for AZIBs. The present bimetallic coating strategy renders the diversification of anode modification for the commercialization of high‐performance AZIBs.
The resonance of Mike Jackson's work with the use of systems ideas in community operational research
Authors: Herron Rebecca J. M. , Mendiwelso Bendek Zoraida , Salinas Navarro David E. , Vilalta‐Perdomo Eliseo , Weaver Miles W 
Published: December 2024

AbstractThe body of work of Mike Jackson covers several major themes in OR/Systems Thinking and articulates key aspects of Critical Systems Thinking; with an interest throughout in applications to complex social challenges. In this paper, as a direct response to this Festschrift, and acknowledging his contribution to Community OR, five active UK‐based researchers have engaged in their own process of community‐based learning in order to articulate the ways Jackson's work resonates with their contemporary research and practice. The researchers used a variation of the Delphi method to reflect first on the ways that the body of work of Jackson resonated with their practice and research agendas. This produced a framework of ideas. Examples from the UK and overseas are then provided to illustrate these points. Ultimately, the researchers used these experiences and reflections to produce a series of statements for developing Community OR practice (and theory)—reflecting and extending Jackson's work.