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Spaced‐confined capsule catalysts with tunable micro‐environments for efficient CO₂ conversion

Hao Wu, Lisheng Guo, Xianbiao Wang, Wenjie Zhou, więcej

CO₂ as a greenhouse gas causes a series of issues, and catalytic utilization of CO₂ to fuels is a favorable strategy. Herein, we report the discovery in CO₂ hydrogenation reaction where C₅₊ yield can be evidently improved by encapsulating ZnFe₂O₄ inside ZSM‐5, in which the micro‐environments of core‐shell components can be tuned. For the ZnFe₂O₄, the K promoter makes the FeC structure more electron...

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Understanding the Poly (Triazine Imide) Crystals Formation Process: The Conversion from Heptazine to Triazine

Jiawen Yu, Mengdie Cai, Qin Cheng, Fang Chen, więcej

Chemistry – A European Journal > 30 > 6 > n/a - n/a

Poly (triazine imide) (PTI) generally obtained via ionothermal synthesis features extended π‐conjugation and enhanced crystallinity. However, in‐depth investigation of the polycondensation process for PTI is an onerous task due to multiple influencing factors and limited characterization techniques. Herein, to simplify the polymerization route and exclude non‐essential factors, PTI was prepared by...

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Stereoselective Synthesis of the O‐antigen of A. baumannii ATCC 17961 Using Long‐Range Levulinoyl Group Participation

Liangshen Duan, Qin Nie, Yongxin Hu, Liming Wang, więcej

Angewandte Chemie International Edition > 62 > 33 > n/a - n/a

Herein, we described the first synthesis of the pentasaccharide and decasaccharide of the A. baumannii ATCC 17961 O‐antigen for developing a synthetic carbohydrate‐based vaccine against A. baumannii infection. The efficient synthesis of the rare sugar 2,3‐diacetamido‐glucuronate was achieved using our recently introduced organocatalytic glycosylation method. We found, for the first time, that long‐range...

artykuł

Stereoselective Synthesis of the O‐antigen of A. baumannii ATCC 17961 Using Long‐Range Levulinoyl Group Participation

Liangshen Duan, Qin Nie, Yongxin Hu, Liming Wang, więcej

Angewandte Chemie > 135 > 33 > n/a - n/a

artykuł

Parametric design of functional observer for second‐order linear time‐varying systems

Da‐Ke Gu, Li‐Song Sun, Yin‐Dong Liu

Asian Journal of Control > 25 > 2 > 950 - 960

This note constructs a functional observer for second‐order linear time‐varying (SOLTV) systems under framework of second‐order systems. Based on the assumption that the SOLTV system is observable, sufficient conditions for the existence of a second‐order functional observer are proposed. Combined with the solution of generalized Sylvester equation (GSE), the completely parameterized expressions of...

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Construction of TiO₂/SrTiO₃ Heterojunction Derived from Monolayer Ti₃C₂ MXene for Efficient Photocatalytic Overall Water Splitting

Zhenzhen Zhuo, Xue Wang, Cheng Shen, Mengdie Cai, więcej

Chemistry – A European Journal > 29 > 12 > n/a - n/a

Construction of heterojunction at the atomic scale to ensure efficient charge separation for improvement of photocatalytic water splitting is challenging. Herein, a facile hydrothermal method has been applied for the in situ fabrication of TiO₂/SrTiO₃ heterojunction, using the monolayer Ti₃C₂ MXene as the template and reactant. It is found that the sample with the hydrothermal reaction time of 60...

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Stereoselective Synthesis and Immunological Evaluation of Common O‐antigen of P. mirabilis OE and P. vulgaris TG103

Xiaopei Wu, Jinsheng Lai, Kexin Yang, Yunxia Xue, więcej

Chinese Journal of Chemistry > 41 > 5 > 535 - 543

Proteus species especially Proteus mirabilis and Proteus vulgaris are zoonotic pathogens which can cause public health disease. Owing to their antibiotic‐resistance, developing vaccines against these pathogens is urgently required. Herein, we describe the first synthesis of the common O‐antigen of Proteus mirabilis OE and Proteus vulgaris TG 103. The repeating unit incorporates two challenging 1,2‐...

artykuł

Insights into symbiotic interactions from metatranscriptome analysis of deep‐sea mussel Gigantidas platifrons under long‐term laboratory maintenance

Yan Sun, Minxiao Wang, Hao Chen, Hao Wang, więcej

Molecular Ecology > 32 > 2 > 444 - 459

Symbioses between invertebrates and chemosynthetic bacteria are of fundamental importance in deep‐sea ecosystems, but the mechanisms that enable their symbiont associations are still largely undescribed, owing to the culturable difficulties of deep‐sea lives. Bathymodiolinae mussels are remarkable in their ability to overcome decompression and can be maintained successfully for an extended period...

artykuł

Stereoselective Synthesis of 2,3‐Diamino‐2,3‐dideoxyglycosides from 3‐O‐Acetyl‐2‐nitroglycals

Xiaopei Wu, Zhichao Zheng, Liming Wang, Yunxia Xue, więcej

European Journal of Organic Chemistry > 2022 > 26 > n/a - n/a

2‐Nitroglycal is a widely used synthon for aminoglycosides synthesis. Herein, we report an efficient method for 2‐nitroglycals synthesis using ⁿBu₄NNO₃/Tf₂O/DTBMP. Using 3‐O‐acetyl‐2‐nitroglycals as donors, a novel method for the construction of challenging 1,2‐cis‐2,3‐diamino‐2,3‐dideoxyglycosidic linkages was established using 4‐pyrrolidinopyridine (PPY) mediated relay glycosylation reaction. The...

artykuł

Clinical outcome of infantile‐onset inflammatory bowel disease in 102 patients with interleukin‐10 signalling deficiency

Ziqing Ye, Lai Qian, Wenhui Hu, Shijian Miao, więcej

Alimentary Pharmacology & Therapeutics > 55 > 11 > 1414 - 1422

Background Infantile‐onset inflammatory bowel disease can be caused by defects in interleukin‐10 signalling. The natural history and clinical outcomes of allogeneic haematopoietic stem cell transplantation, medical treatment and surgery have not been thoroughly described. Aims This study evaluates disease progression and clinical outcome in patients with interleukin‐10 signalling deficiency. ...

artykuł

Definitive radiation therapy and liver local therapy in de novo liver metastatic nasopharyngeal carcinoma: Large cohort study

Zhen‐Chong Yang, Mei‐Juan Luo, Xue‐Song Sun, Li‐Ting Liu, więcej

Head & Neck > 44 > 5 > 1057 - 1068

Background We aimed to evaluate patients suitable for definitive radiation therapy (DRT) and liver local therapy (LLT) in addition to palliative chemotherapy (PCT) among those with de novo liver metastatic nasopharyngeal carcinoma (lmNPC). Methods The overall survival (OS) and progression‐free survival (PFS) rates were calculated and compared in 610 patients with lmNPC. Results Both the PCT+DRT...

artykuł

Reduced‐order functional observers for descriptor linear time‐invariant systems: a parametric method

Da‐Ke Gu, Li‐Song Sun, Yin‐Dong Liu

International Journal of Adaptive Control and Signal Processing > 36 > 3 > 562 - 578

This article introduces the parametric design method of the reduced‐order functional observer for descriptor linear time‐invariant systems. First, existence conditions of reduced‐order functional observers are provided. Then, based on the solution of generalized Sylvester equations, completely parameterized expressions of the coefficients matrices of the reduced‐order functional observer are established,...

artykuł

Efficacy of Transnasal Endoscopic Fine‐Needle Aspiration Biopsy in Diagnosing Submucosal Nasopharyngeal Carcinoma

Qing‐Nan Tang, Lin‐Quan Tang, Li‐Ting Liu, Dong‐Xiang Wen, więcej

The Laryngoscope > 131 > 8 > 1798 - 1804

Objectives/Hypothesis The routine practices of examining submucosal lesions are not suitable for deep lesions. Therefore, we evaluated the efficacy of non‐real‐time image‐guided transnasal endoscopic fine‐needle aspiration biopsy (FNAB) in diagnosing nasopharyngeal carcinoma (NPC) with submucosal lesions. Study Design The effectiveness evaluation of diagnostic methods. Methods Fifty suspected...

artykuł

Nanoantenna‐Enhanced Light‐Emitting Diodes: Fundamental and Recent Progress

Li Ma, Peng Yu, Wenhao Wang, Hao‐Chung Kuo, więcej

Laser & Photonics Reviews > 15 > 5 > n/a - n/a

Light‐emitting diodes (LEDs) are a promising solution for energy‐saving illumination, terminal display technology, and visible light communication. Driven by the vast markets of these emergent applications, the everlasting demand for LED devices is to continuously improve the luminous efficiency and lifetime while minimizing costs. The luminous efficiency of LEDs can be improved from various perspectives...

artykuł

The soybean plasma membrane‐localized cation/H⁺ exchanger GmCHX20a plays a negative role under salt stress

Qi Jia, Man‐Wah Li, Chengwen Zheng, Yiyue Xu, więcej

Physiologia Plantarum > 171 > 4 > 714 - 727

Cation/H⁺‐exchanger (CHX) perform diverse functions in plants, including being a part of the protective mechanisms to cope with salt stress. GmCHX1 has been previously identified as the causal gene in a major salt‐tolerance quantitative trait locus (QTL) in soybean, but little is known about another close paralog, GmCHX20a, found in the same QTL. In this study, GmCHX20a was characterized along with...

artykuł

The lncRNA ANRIL regulates endothelial dysfunction by targeting the let‐7b/TGF‐βR1 signalling pathway

Xianglan Liu, Shufeng Li, Yi Yang, Yong Sun, więcej

Journal of Cellular Physiology > 236 > 3 > 2058 - 2069

The long noncoding RNA antisense noncoding RNA in the INK4 locus (ANRIL) plays a critical role in the development of atherosclerosis. However, the precise effect of ANRIL on endothelial dysfunction remains unclear. In this study, we investigated ANRIL expression in patients with coronary artery disease and elucidated the molecular mechanism underlying its effect. ANRIL expression was detected in the...

artykuł

1‐Picolinyl‐5‐azido Thiosialosides: Versatile Donors for the Stereoselective Construction of Sialyl Linkages

Jian Chen, Thomas Hansen, Qing‐Ju Zhang, De‐Yong Liu, więcej

Angewandte Chemie International Edition > 58 > 47 > 17000 - 17008

With the picolinyl (Pic) group as a C‐1 located directing group and N₃ as versatile precursor for C5‐NH₂, a novel 1‐Pic‐5‐N₃ thiosialyl donor was designed and synthesized, based on which a new sialylation protocol was established. In comparison to conventional sialylation methods, the new protocol exhibited obvious advantages, including excellent α‐stereoselectivity in the absence of a solvent effect,...

artykuł

1‐Picolinyl‐5‐azido Thiosialosides: Versatile Donors for the Stereoselective Construction of Sialyl Linkages

Jian Chen, Thomas Hansen, Qing‐Ju Zhang, De‐Yong Liu, więcej

Angewandte Chemie > 131 > 47 > 17156 - 17164

artykuł

Feeding strategies of Euphausia superba in the eastern South Shetland Islands in austral summer

Mengtan Liu, Zhencheng Tao, Ye Zhang, Guang Yang, więcej

Acta Oceanologica Sinica > 2019 > 38 > 10 > 75-83

Euphausia superba is a key species in the Southern Ocean that serves as a link between primary production and higher trophic levels. To investigate the feeding strategies of E. superba from the eastern South Shetland Islands, fatty acid biomarkers, stable isotope signatures, and an incubation experiment were conducted. The results of the incubation experiment proved that adult E. superba mainly fed...

artykuł

Prediction of Surface Settlement with Ultra-shallow-burial and Large Rectangular Cross-section Urban Underpass

Chaoyang Heng, Song Sun, Zhi Zhou, Jiantao Zhang

KSCE Journal of Civil Engineering > 2019 > 23 > 11 > 4641-4650

Based on the actual measured surface settlement of two super-shallow buried large rectangular-section urban underpass, a settlement fitting function is established. The superposition curve used the reduction of settlement trough. By comparing the results of fitting analysis with Peck formula result, settlement characteristics and simple prediction method for super-shallow and large rectangular section...

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