bluuebunny/crossref_metadata_2025_split huggingface dataset:
Multiscale Manufacturing of Recyclable Polyimide Composite Aerogels
Authors: Li Mengmeng , Wu Tingting , Zhao Zhiyang , Li Lei , Shan Tongxin , Wu Hui , Zboray Robert , Bernasconi Francesco , Cui Yongjie , Hu Peiying , Malfait Wim J. , Zhang Qinghua , Zhao Shanyu 
Published: November 2024

AbstractMitigating embodied emissions is becoming increasingly crucial as the energy supply shifts toward more sustainable sources. Bio‐based materials present a potentially more sustainable alternative to synthetic polymers; however, it often do not yet match the performance of synthetic materials. Given the ongoing reliance on high‐performance, high‐environmental‐impact materials, it is essential to ensure their complete recyclability. Aerogels, recognized by IUPAC as one of the top ten emerging technologies, are witnessing rapid market growth in thermal insulation and thermal protection applications. In certain applications, synthetic and composite aerogels exhibit superior performance, particularly under high temperatures. Here, molecular simulation tools are employed to elucidate the interaction forces between polymers and solvents, develop a recycling strategy for polyimide‐based aerogels, and demonstrate their application in thermal protection for firefighter textiles and thermal runaway protection for Li‐ion battery packs. These composites are engineered for disassembly, allowing for the complete recovery of starting materials without any degradation of components after multiple recycling cycles. The recyclable composites can be fabricated using various manufacturing techniques to produce fibers (1D), membranes (2D), and complex structures (3D). This unique combination of outstanding performance and excellent recyclability facilitates the sustainable utilization of aerogels in protective clothing, electric mobility, consumer goods, and aeronautics.
A High‐Stability Pressure‐Sensitive Implantable Memristor for Pulmonary Hypertension Monitoring
Authors: Cao Zelin , Liu Yiwei , Sun Bai , Zhou Guangdong , Gao Kaikai , Sun Siyu , Cui Yu , Wang Mengna , Yan Xianxia , Zhao Tianfu , Chen Xiaoliang , Shao Jinyou , Qin Sida 
Published: November 2024

AbstractPulmonary hypertension (PH) significantly affects the quality of life and lifespan of humans and has promoted the development of flexible implantable electronic devices for PH diagnosis and prevention. Traditional implantable devices based on the von Neumann architecture face insurmountable challenges in processing large amounts of biological data due to computational bottlenecks. Memristors, with integrated in‐memory sensing and computing capabilities, can effectively eliminate computational bottlenecks and become one of the most promising products in implantable devices for health monitoring. Here, a memristor with the Ag/MnO2/BaTiO3/FTO structure is implemented and implanted into Sprague‒Dawley (SD) rats. With polydimethylsiloxane (PDMS) packaging, the device can be continuously worked in vivo for up to four weeks, demonstrating excellent stability and biocompatibility. Furthermore, a memristive sensor array is designed for pulmonary artery blood pressure monitoring based on the pressure‐responsive characteristics of the as‐prepared memristive device. The front‐end memristive sensor array can collect and feedback pressure signal, while noise reduction is achieved through memristive logic circuits, and ultimately the memristor neural network processes and classifies the information. Therefore, this work demonstrates the potential of implantable memristors for pulmonary artery pressure monitoring and provides new inspiration for the design of efficient, real‐time, and reliable implantable pressure monitoring devices in medical health monitoring.
Engineering Topological and Chemical Disorder in Pd Sites for Record‐Breaking Formic Acid Electrocatalytic Oxidation
Authors: Tan Xiaohong , Wang Jiarui , Xiao Yuhang , Guo Yingying , He Weidong , Du Binjie , Cui Hao , Wang Chengxin 
Published: November 2024

AbstractDesigning palladium‐based formic acid oxidation reaction (FAOR) catalysts to achieve significant breakthroughs in catalytic activity, pathway selectivity, and toxicity resistance is both urgent and challenging. Here, these challenges are addressed by pioneering a novel catalyst design that incorporates both topological and chemical disorder, developing a new class of PdCuLaYMnW high‐entropy amorphous alloys with a porous network (Net‐Pd‐HEAA) as a highly active, selective, and stable FAOR electrocatalyst. This novel Net‐Pd‐HEAA demonstrates record‐breaking FAOR performance, achieving the mass and specific activities of 5.94 A mgPd−1 and 8.94 mA cm−2, respectively, surpassing all previously reported Pd‐based catalysts and showing strong competitiveness against advanced Pt‐based catalysts. Simulataneously, Net‐Pd‐HEAA exhibits extraordinary stability in accelerated durability tests (ADT) and chronoamperometry (CA) tests. Advanced characterization and in situ, spectral analysis reveal that the extremely disordered atomic structure effectively regulates the geometric and electronic structure of the Pd sites, enhancing active intermediate coverage, facilitating dehydrogenation pathway, and inhibiting the production/adsorption of CO. Furthermore, when employed as the anode catalyst in proton exchange membrane water electrolysis (PEMWE), Net‐Pd‐HEAA only requires a potential of 1.28 V to obtain a current density of 1 A cm−2, and operates stably in a highly corrosive electrolyte for over 100 h.
Terahertz Resonant Emission by Optically Excited Infrared‐Active Shear Phonons in KY(MoO4)2
Authors: Kamenskyi Dmytro , Vasin Kirill , Prodan Lilian , Kutko Khrystyna , Khrustalyov Volodymyr , Pavlov Sergey G. , Hübers Heinz‐Wilhelm 
Published: November 2024

AbstractThe generation of monochromatic electromagnetic radiation in the terahertz (THz) frequency range has remained a challenging task for many decades. Here, the emission of monochromatic sub‐THz radiation by optical phonons in the dielectric material KY(MoO4)2 is demonstrated. The layered crystal structure of KY(MoO4)2 causes infrared‐active shear lattice vibrations to have energies below 3.7 meV, corresponding to frequencies lower than 900 GHz where solid‐state‐based monochromatic radiation sources are rare. Directly excited by a 5 ps long broadband THz pulse, infrared‐active optical vibrations in KY(MoO4)2 re‐emit narrowband sub‐THz radiation as a time‐varying dipole for tens of picoseconds, which is exceptionally long for oscillators with frequencies below 1 THz. Such a long coherent emission allows for the detection of more than 50 periods of radiation with frequencies of 568 and 860 GHz. The remarkably long decay time together with the chemical stability of the employed material suggests a variety of possible applications in THz technology.
Targeted Sonodynamic Therapy Platform for Holistic Integrative Helicobacter pylori Therapy
Authors: Yin Xiaojing , Lai Yongkang , Zhang Xinyuan , Zhang Tingling , Tian Jing , Du Yiqi , Li Zhaoshen , Gao Jie 
Published: November 2024

AbstractHelicobacter pylori (H. pylori) is a primary pathogen associated with gastrointestinal diseases, including gastric cancer. The increase in resistance to antibiotics, along with the adverse effects caused by complicated medication protocols, has made the eradication of H. pylori a more formidable challenge, necessitating alternative therapeutics. Herein, a targeted nanoplatform is reported based on sonodynamic therapy, the chitosan‐conjugated fucose loaded with indocyanine green (ICG@FCS). It penetrates the gastric mucosa and homes in on H. pylori through dual targeting mechanisms: molecular via fucose and physical via ultrasound. Upon ultrasound activation, it generates singlet oxygen, effectively attacking planktonic bacteria, disrupting biofilms, and facilitating the clearance of intracellular bacteria by promoting autophagy, including multidrug‐resistant strains. The ICG@FCS nanoplatform minimally affects the gut microbiota and aids in gastric mucosa repair. a holistic integrative H. pylori therapy strategy is proposed that targets eradication while preserving gastrointestinal health. This strategy emphasizes the importance of maintaining patient health while eradicating the pathogen. This advancement is set to refine the comprehensive antibacterial approach, offering a promising horizon in the ongoing battle against antibiotic resistance and more effective gastric cancer prevention strategies.
Real‐world predictors of dupilumab prescription in patients with chronic rhinosinusitis with nasal polyps
Authors: Dorismond Christina , Krysinski Mason R. , Trivedi Yash , Lubner Rory J. , Chandra Rakesh K. , Chowdhury Naweed I. , Turner Justin H. 
Published: November 2024

AbstractBackgroundDespite increasing dupilumab use for chronic rhinosinusitis with nasal polyps (CRSwNP), little is known about the factors influencing its use in real‐world practice. We aimed to identify factors that may predict dupilumab prescription in CRSwNP patients who have undergone endoscopic sinus surgery (ESS).MethodsA single‐institution, retrospective cohort study of patients who underwent ESS for CRSwNP between 2015 and 2023 was conducted. Demographics, comorbidities, 22‐item sinonasal outcome test (SNOT‐22) scores, and dupilumab prescription date were extracted from patient records. Intraoperative nasal mucus cytokine levels were measured using a multiplex bead assay. Univariate logistic regression analysis was performed to identify factors associated with dupilumab prescription, and multivariate logistic regression was used to adjust for surgery date.ResultsA total of 299 CRSwNP patients were included, including seventy (23.4%) who were prescribed dupilumab postoperatively. Patients were more likely to be prescribed dupilumab if they had asthma (odds ratio [OR] 2.304), aspirin‐exacerbated respiratory disease (AERD, OR 3.375), elevated tissue eosinophils (OR 1.005), and higher 3‐month postoperative SNOT‐22 scores (OR 1.027). Patients prescribed dupilumab also had greater odds of having elevated mucus interleukin (IL)‐5 (OR 1.128) and IL‐13 (OR 1.213). When adjusting for surgery date, associated factors included: asthma (OR 2.444), AERD (OR 3.750), allergic rhinitis (OR 1.833), higher tissue eosinophils (OR 1.005), elevated 3‐month SNOT‐22 scores (OR 1.028), and higher IL‐5 (OR 1.123) and IL‐13 (OR 1.202) levels.ConclusionAsthma, AERD, allergic rhinitis, and elevated tissue eosinophil, IL‐5, and IL‐13 levels are predictive of dupilumab prescription in CRSwNP patients. These may serve as clinical and inflammatory biomarkers and can aid in counseling patients about expected disease trajectory.
Harnessing Free Sulfate Groups in Glycosylation Reactions
Authors: Maki Yuta , Manbo Akihiro , Abe Junpei , Nobutou Hiroki , Hirao Kohtaro , Okamoto Ryo , Izumi Masayuki , Yamanaka Shusuke , Okumura Mitsutaka , Kajihara Yasuhiro 
Published: November 2024

AbstractGeneral strategies for synthesizing sulfated oligosaccharides employ the protection of sulfate groups for glycosylation or post‐sulfation after the synthesis of oligosaccharides. However, the chemical behavior of free sulfate groups in glycosylation reactions has not been thoroughly studied. We examined several glycosyl donors with free sulfate groups, but neither glycosyl imidates nor thioglycosides achieved products. Conversely, activating 6‐sulfated GalNAc donors with either a 2‐NTroc group or 2‐O‐acetyl group using an ortho‐hexynylbenzoate group at the anomeric position yielded β‐glycosides in good yield. These results indicate that glycosylations with a free sulfate group can be performed and that the neighboring group participation of 2‐NHTroc and 2‐O‐acetyl groups works even with an unprotected sulfate group at the 6‐position. Ab initio calculations supported the formation of acyloxonium‐cation via 2‐O‐acyl participation. Additionally, glycosylation reactions under various counter cations of the sulfate group, such as Na+, Li+, K+, Ba2+, and pyridinium were examined. Results showed that sodium and lithium salt donors yielded the products in good yield. These results were also supported by ab initio calculations. Practical glycosylation reactions between disaccharide donor‐acceptor pairs with free sulfate groups successfully yielded the sulfated tetrasaccharides. This study also discusses how a sodium salt acts as a protecting group during glycosylation.
Using a New Pt(II) Source to Make Pt(II) Lantern‐Shaped Cages, Including Low‐Symmetry, Heteroleptic, and Multicavity Examples
Authors: Avery Zack T. , Gardiner Michael G. , Preston Dan 
Published: November 2024

AbstractCurrent synthetic methods towards Pt(II) lantern‐shaped cages involve the use of dry solvent, inert atmosphere, lengthy reaction times, and highly variable yields if isolated. Starting materials such as [Pt(CH3CN)4](BF4)2 suffer from a poor shelf‐life, reducing the synthetic accessibility of various Pt(II) architectures. A new Pt(II) source (with varied counterions), [Pt(3‐ClPy)4](X)2 (3‐ClPy=3‐chloropyridine, X=BF4−, OTf−, NO3−), is developed and characterised, showing greatly enhanced shelf‐life characteristics under ambient atmospheric conditions. Using this starting material, the assembly of Pt(II) lantern‐shaped cages was completed in as little as 1.5 hours with wet solvent and ambient atmosphere. The first examples of low‐symmetry, heteroleptic and multicavity Pt(II) lantern‐shaped cages are reported using this approach. Attempts towards an M6L8 octahedron using a tritopic ligand instead generate an interesting M2L4 cage with unbound pyridyl arms. Ligands and cages are characterised by NMR spectroscopy, IR spectroscopy, mass spectrometry, and X‐ray crystallography in some cases.
Paired Electro‐Synthesis of Remote Amino Alcohols with/in H2O
Authors: Fang Xinyue , Hu Xinwei , Li Quan‐Xin , Ni Shao‐Fei , Ruan Zhixiong 
Published: November 2024

AbstractAmino alcohols, particularly remote amino alcohols and peptide alcohols, are valuable due to their functional diversity in biologically active compounds. However, traditional synthesis methods face significant challenges, making electrochemistry an attractive alternative. We have developed a mild and biocompatible sequential paired electrolysis strategy, leveraging copper‐electrocatalysis to synthesize diverse remote amino alcohols, including unnatural peptide alcohols. Both experimental results and density functional theory (DFT) calculations demonstrated that water serves as both the hydroxyl source and the solvent, facilitating the generation of CuH with Cu(I) at the cathode, which in turn reduces the aldehyde intermediates formed during the reaction.
Reassessing the Photochemical Upcycling of Polystyrene Using Acridinium Salts
Authors: De Abreu Anne‐Lise , Taton Daniel , Bassani Dario M. 
Published: November 2024

AbstractPolystyrene (PS) is a commodity plastic recalcitrant to chemical recycling or upcycling processes. Approaches aimed at deconstructing PS by photocatalytic means struggle to generate high‐energy species capable of cleaving the robust C−H and C−C bonds of PS. We show that 9‐mesityl‐10‐methylacridinium perchlorate (MA) is capable of upcycling various grades of PS substrates into up to 40 % benzoic acid (BAc), formic acid (FA) and small proportions of acetophenone (ACP), under visible light (456 nm) or through solar radiation. Time‐resolved emission and absorption spectroscopy evidence that a reaction with oxygen is the primary photochemical step in oxygen‐saturated solutions, accounting for 77 % of the photons absorbed vs. 1 % for the direct reaction with PS (0.303 M in repeating units). These results are in agreement with a mechanism in which MA‐mediated photo upcycling of PS to BAc occurs through the abstraction of benzylic H atoms by reactive oxygen species generated by energy or electron transfer from the excited state of MA. Addition of triplet O2 to these radicals, followed by intra‐ or inter‐molecular hydrogen atom transfer (HAT) generates C‐ or O‐centered radicals then undergoing β‐scission or hydroperoxide fragmentation. The formation of intermediate oligomers functionalized by terminal carbonyl groups is demonstrated by both infrared analysis and MALDI TOF mass spectrometry. These oligomers undergo further photoinduced conversion even in the absence of MA, as evidenced by size exclusion chromatography analysis of the irradiated samples.
Tough and Aqua‐Degradable Poly(Glycolic Acid)/Poly (ε‐Caprolactone) Blends Obtained Through Interfacial Regulation
Authors: Liu Ben , Ma Chao , Zhu Mintao , Gong Min , Zhang Liang , Wang Dongrui , Lin Xiang 
Published: November 2024

ABSTRACTIn order to obtain tough and aqua‐degradable materials under relatively low water temperature, the poly(glycolic acid) (PGA, T
m ~ 225°C) was melt blended with poly (ε‐caprolactone) (PCL, T
m ~ 60°C) and chain extenders (CEs) were employed to regulate the interfacial compatibility. The crystallization behavior, morphological structure, mechanical properties, thermal stability, and rheological behaviors of the blends were studied, with a focus on their toughness and aqua‐degradability. Results showed that the incorporation of PCL deteriorated the tensile properties of PGA due to the induced interfacial defects which could be improved via minor CEs. With the PCL content of 20 phr and 1–1.5 phr of CEs, for example, the tensile strength of PGA/PCL reached 80.64 MPa, and the elongation at break and toughness were up to 142.92% and 89.12 MJ/m3, respectively. The employed CEs were confirmed to be efficient in improving compatibility through extending molecular chains, but crystallization dynamics and thermal stability of both components were not affected. Finally, fibers of PGA/PCL were melt electro‐spun and their aqua‐degradation efficiency at 70°C were evaluated for 114 h, revealing a degradation ratio as high as ~90% and indicating that the introduction of low‐melting‐point PCL gave rise to the required aqua‐degradation properties of PGA in low‐temperature water environments.
Transient Photocurrent Responses of Sr1‐xCexTiO3 Perovskites Under Visible Light Illumination for Photovoltaic Applications
Authors: Kumar S. Vinod , Babu D. Prakash , Ponkumar S. , Uthrakumar R. , Kaviyarasu K. , Nivetha A. , Ahmad Muhammad Sheraz , Alam Mir Waqas 
Published: November 2024

ABSTRACTThe objective of this study was to synthesize strontium titanate (Sr1‐xCexTiO3) doped with Ce3+ by solid state method. Its crystalline structure is Sr1‐xCexTiO3, and its bandgap ranges from ~3.3 to ~2.7 eV. In the photoluminescence of samples excited at 288 nm, the maximum emission of blue light was observed at 380 and 390 nm. Photocatalytic results show that dye molecules have a high absorbance, whereas their surface area is large. According to a line sweep voltammetric plot (LSV), illumination increases the current density by 0.4 μA cm−2 compared with dark conditions. It was demonstrated that the material changed from n‐type to p‐type under doping. Chronoamperometry spectra were obtained for sample Sr1‐xCexTiO3 (x = 0, 0.005, 0.01, 0.03, 0.05) when an electrical voltage of 0.8 V was applied versus NHE. The plots indicate an increase in the current density under “light ON” conditions and a decrease under “light OFF” conditions. As Ce3+ concentration increases, the photocurrent increases until about 3 mol%, after which it decreases abruptly.
Investigation of CuO/ITO Photoelectrode Fabricated by PVD for Efficient Photoelectrochemical Water Splitting and Hydrogen Evolution
Authors: Junaid Muhammad , Noor‐ul‐Ain  , Sharaf Mohamed , El‐Meligy Mohammad , Ahmad Nazir 
Published: November 2024

ABSTRACTHydrogen and renewable fuels were generated using cost‐effective and efficient electrocatalysts for water splitting. In this work, a CuO‐based photocathode is used for the water splitting to generate hydrogen energy by PVD technique. The XRD analysis reveals the deposition of CuO thin film on ITO substrates, which is monoclinic. The XRD and LSV analysis of CuO confirmed the type of semiconductor and observed to be P‐type semiconductor. SEM study of CuO confirmed the shape, morphology to be a circular and regular shape. The grain size of deposited CuO thin film was found to be 18 nm. The absorption and transmission of CuO thin film were observed through UV spectroscopy analysis and were found to be better photocatalyst in visible range 415–425 nm. The transmittance of the prepared thin film was noted to be maximum 7.6% in the UV range (280–300 nm). The band gap was also measured employing the Tauc plot and found to be 2.98 eV, which is most favorable for water splitting application. FTIR study showed the stretching, vibration, and the functional group of the deposited CuO thin film; the broad band of stretching of Cu‐O in monoclinic CuO was observed at the range of 500–700 cm−1, and further peaks were also noted at the range of 1500–1600 cm−1. The linear sweep voltammetry (LSV) of CuO thin film was calculated in the absence of solar spectra and the presence of solar spectra and observed to be enhanced in current under solar spectra. The solar light to hydrogen emission percentage (STH %) of CuO through LSV was observed to be 2.04% under solar spectra. The low Nyquist curve of blank ITO and CuO‐coated ITO substrate via electrochemical impedance spectroscopy (EIS) analysis was observed, which confirmed the enhancement of EIS of CuO‐coated ITO. The hydrogen generation rate was also calculated by electrochemical cell and observed to be 5325.21 mol g−1 for 6 h.
Effective environmental strategy or illusory tactics? Corporate greenwashing and innovation willingness
Authors: Lu Jintao , Rong Dan , Eweje Gabriel , Yuan Xiaolin , Song Malin , Searcy Cory 
Published: November 2024

AbstractCorporate greenwashing is an unethical environmental strategy that has received extensive attention from practitioners and academics; however, little is known about its influence on innovation willingness. The purpose of this study is to fill this important gap by exploring the influence mechanism of corporate greenwashing on innovation willingness through underperformance duration. Drawing on resource‐based theory, Homo economicus, and performance feedback theory, this study uses data of 610 Chinese A‐share listed heavily polluting companies (3819 company‐year observations) from 2013 to 2019. The results show that there is a significant inverted U‐shaped relationship between corporate greenwashing and innovation willingness, with underperformance duration partially mediating this relationship. The findings advance our understanding of the non‐economic consequences of corporate greenwashing, enrich the literature on corporate greenwashing and innovation willingness, and offer valuable insights for interdisciplinary studies between environmental strategy and corporate innovation. Practical implications provide policymakers with recommendations on how to prevent corporate greenwashing in environmental responsibility.