Search results for: Chao Ma

Items from 1 to 20 out of 1,070 results

article

Pharmacokinetic study of iptacopan and its two acyl glucuronide metabolites in monkey plasma by liquid chromatography combined with electrospray ionization tandem mass spectrometry

Jingchu Li, Shanshan Liu, Chenglin Jia, Jiacheng Li, more

Biomedical Chromatography > 38 > 11 > n/a - n/a

In this study, a simple and sensitive liquid chromatography tandem mass spectrometric method was developed and validated for the determination of iptacopan and two acyl glucuronidation metabolites in monkey plasma. The plasma sample was precipitated with acetonitrile and then separated on an Acquity UPLC BEH C18 column (2.1 × 100 mm, 1.7 μm) using 0.1% formic acid and 5 mM ammonium acetate in water...

article

The Impact of Sports Tourism Motivation on Tourist Loyalty: The Chain Mediation Effect of Experience Quality and Tourist Satisfaction

Yiran Deng, Xianliang Wang, Chao Ma

International Journal of Tourism Research > 26 > 5 > n/a - n/a

This study adopts the perspective of the social exchange theory and S‐O‐R theory, taking the emotional bond formed between tourists and the tourism destination through interaction as a starting point. It introduces experience quality and tourist satisfaction to construct a chain mediation model of “tourist motivation—experience quality—tourist satisfaction—tourist loyalty” in the context of sports...

article

Harnessing Engineered Extracellular Vesicles from Mesenchymal Stem Cells as Therapeutic Scaffolds for Bone‐Related Diseases

Tingting Yu, Jingwei Wang, Yusai Zhou, Chao Ma, more

Advanced Functional Materials > 34 > 38 > n/a - n/a

Mesenchymal stem cells (MSCs) play a crucial role in maintaining bone homeostasis and are extensively explored for cell therapy in various bone‐related diseases. In addition to direct cell therapy, the secretion of extracellular vesicles (EVs) by MSCs has emerged as a promising alternative approach. MSC‐derived EVs (MSC‐EVs) offer equivalent therapeutic efficacy to MSCs while mitigating potential...

article

N‐Type CuIn₅Se₈‐Based Thermoelectric Materials with All‐Scale Hierarchical Architectures

Jiaqi Yuan, Tingting Deng, Pengfei Qiu, Zhi Li, more

Advanced Functional Materials > 34 > 38 > n/a - n/a

Copper (Cu)‐based thermoelectric (TE) materials have attracted great attention from both scientific and industrial societies, but for a long time, their real applications are greatly limited by the lack of high‐performance n‐type Cu‐based TE materials. Most recently, the novel n‐type Cu‐based TE material, CuIn₅Se₈, has been discovered to show a record‐high TE figure‐of‐merit (zT) to match the state‐of‐the‐art...

article

Multi‐omics integration analysis reveals the molecular mechanisms of drought adaptation in homologous tetraploid alfalfa(Medicago sativa ‘Xinjiang‐Daye’)

Jianwei Qi, Yongzhong Luo, Songsong Lu, Hui Liu, more

Physiologia Plantarum > 176 > 5 > n/a - n/a

Drought stress is a predominant abiotic factor leading to decreased alfalfa yield. Genomic ploidy differences contribute to varying adaptation mechanisms of different alfalfa cultivars to drought conditions. This study employed a multi‐omics approach to characterize the molecular basis of drought tolerance in a tetraploid variant of alfalfa (Medicago sativa, Xinjiang‐Daye). Under drought treatment,...

article

Bound‐based control design for permanent magnet linear motor servo system with inequality constraints and uncertainties

Qilin Wu, Hao Sun, Chao Ma, Qiang Qin, more

International Journal of Robust and Nonlinear Control > 34 > 15 > 10388 - 10406

The permanent magnet linear motor (PMLM) systems are widely applied in various engineering fields. However, the state inequality constraints and uncertainties of parameters and unknown external disturbances need to be further explored. In this article, first, a state transformation method is proposed for converting bounded states to unbounded states. As a result, the output state of system is limited...

article

A Strain‐Temperature Integrated Polymer‐Derived SiCN Ceramic High Temperature Sensor with Wide‐Range and Ultra‐Short Response Time

Mengmeng Yang, Chao Ma, Yibo Hu, Kang Wang, more

Advanced Functional Materials > 34 > 33 > n/a - n/a

Fabricating strain sensors with high response in a wide temperature and strain range is still a challenge, especially in high temperature harsh environments. Herein, a dual‐functional sensor with cantilever beam structure is fabricated using polymer‐derived SiCN ceramics, which can be applied for temperature and stain monitor. The performance of the integrated sensor is evaluated from room temperature...

article

High‐order robust control design with optimized parameters based on confidence index

Chenming Li, Yibo Zhao, Weiyong Zhu, Chao Ma, more

International Journal of Robust and Nonlinear Control > 34 > 14 > 9316 - 9335

Under the theoretical support of fuzzy sets theory and confidence index, the proposed approach involves the development of a high‐order robust control method that incorporates optimization techniques to address uncertain systems. First, the utilization of fuzzy sets theory is employed to establish a fuzzy dynamical model. Second, the design of a high‐order robust controller is performed. Third, the...

article

Injectable Hydrogel Based on Enzymatic Initiation of Keratin Methacrylate for Controlled Exosome Release in Intervertebral Disc Degeneration Therapy

Linjie Chen, Ke Peng, He Huang, Zehua Gong, more

Advanced Functional Materials > 34 > 32 > n/a - n/a

The treatment of intervertebral disc degeneration (IVDD) using bone marrow mesenchymal stem cell‐derived exosomes has shown success in alleviating inflammation and restoring the extracellular matrix (ECM), however, challenges persist due to the deficiency in mechanical support and controlled release. Herein, a carbon‐carbon double bond modified keratin (KeMA) is synthesized by 2‐isocyanatoethyl modification...

article

Accelerated 3D metabolite T₁ mapping of the brain using variable‐flip‐angle SPICE

Yibo Zhao, Yudu Li, Rong Guo, Wen Jin, more

Magnetic Resonance in Medicine > 92 > 4 > 1310 - 1322

Purpose To develop a practical method to enable 3D T₁ mapping of brain metabolites. Theory and Methods Due to the high dimensionality of the imaging problem underlying metabolite T₁ mapping, measurement of metabolite T₁ values has been currently limited to a single voxel or slice. This work achieved 3D metabolite T₁ mapping by leveraging a recent ultrafast MRSI technique called SPICE (spectroscopic...

article

Stereoselective Synthesis of Polysubstituted Dihydropyrroles via 1,5‐Addition and N‐1,4‐Addition Cascade

Jing‐Ming Zhang, Yu‐Chao Wang, Liang Chen, Chao Ma, more

Chemistry – A European Journal > 30 > 38 > n/a - n/a

An unprecedented 1,5‐addition/N‐1,4‐addition cascade reaction is established via palladium hydride catalysis. A variety of polysubstituted dihydropyrrole skeletons are constructed in high yield and with exclusively >20 : 1 diastereoselectivity. An enantioselective protocol of this design is also developed to provide a novel access to enantioenriched dihydropyrroles.

article

Coupling Nano and Atomic Electric Field Confinement for Robust Alkaline Oxygen Evolution

Qiyou Wang, Yujie Gong, Xin Zi, Lei Gan, more

Angewandte Chemie International Edition > 63 > 28 > n/a - n/a

The alkaline oxygen evolution reaction (OER) is a promising avenue for producing clean fuels and storing intermittent energy. However, challenges such as excessive OH⁻ consumption and strong adsorption of oxygen‐containing intermediates hinder the development of alkaline OER. In this study, we propose a cooperative strategy by leveraging both nano‐scale and atomically local electric fields for alkaline...

article

Dilute RuCo Alloy Synergizing Single Ru and Co Atoms as Efficient and CO‐Resistant Anode Catalyst for Anion Exchange Membrane Fuel Cells

Zhibo Cui, Zhanghao Ren, Chao Ma, Bowen Chen, more

Angewandte Chemie International Edition > 63 > 28 > n/a - n/a

Ruthenium (Ru) is considered a promising candidate catalyst for alkaline hydroxide oxidation reaction (HOR) due to its hydrogen binding energy (HBE) like that of platinum (Pt) and its much higher oxygenophilicity than that of Pt. However, Ru still suffers from insufficient intrinsic activity and CO resistance, which hinders its widespread use in anion exchange membrane fuel cells (AEMFCs). Here, we...

article

Dilute RuCo Alloy Synergizing Single Ru and Co Atoms as Efficient and CO‐Resistant Anode Catalyst for Anion Exchange Membrane Fuel Cells

Zhibo Cui, Zhanghao Ren, Chao Ma, Bowen Chen, more

Angewandte Chemie > 136 > 28 > n/a - n/a

article

Coupling Nano and Atomic Electric Field Confinement for Robust Alkaline Oxygen Evolution

Qiyou Wang, Yujie Gong, Xin Zi, Lei Gan, more

Angewandte Chemie > 136 > 28 > n/a - n/a

article

The Importance of Sintering‐Induced Grain Boundaries in Copper Catalysis to Improve Carbon‐Carbon Coupling

Wenlong Wu, Lei Luo, Zhongling Li, Jiahua Luo, more

Angewandte Chemie > 136 > 23 > n/a - n/a

Syngas conversion serves as a gas‐to‐liquid technology to produce liquid fuels and valuable chemicals from coal, natural gas, or biomass. During syngas conversion, sintering is known to deactivate the catalyst owing to the loss of active surface area. However, the growth of nanoparticles might induce the formation of new active sites such as grain boundaries (GBs) which perform differently from the...

article

The Importance of Sintering‐Induced Grain Boundaries in Copper Catalysis to Improve Carbon‐Carbon Coupling

Wenlong Wu, Lei Luo, Zhongling Li, Jiahua Luo, more

Angewandte Chemie International Edition > 63 > 23 > n/a - n/a

article

Elevated pretreatment serum apolipoprotein E level associated with poor prognosis of patients with COVID‐19 during the omicron BA.5 and BF.7 wave

Shengping Gong, Chao Ma, Ruishuang Ma, Ting Zhu, more

Journal of Medical Virology > 96 > 5 > n/a - n/a

The SARS‐CoV‐2 virus is responsible for the human disease known as COVID‐19. This virus is capable of generating a spectrum of infections ranging from moderate to severe. Serum apolipoprotein E (ApoE) inhibits inflammation by preserving immune regulatory function. Nonetheless, the relationship between serum ApoE and clinical prognosis in omicron remains elusive. A cohort of 231 patients was observed...

article

Control of the Hydroquinone/Benzoquinone Redox State in High‐Mobility Semiconducting Conjugated Coordination Polymers

Xing Huang, Yang Li, Shuai Fu, Chao Ma, more

Angewandte Chemie International Edition > 63 > 20 > n/a - n/a

Conjugated coordination polymers (c‐CPs) are unique organic–inorganic hybrid semiconductors with intrinsically high electrical conductivity and excellent charge carrier mobility. However, it remains a challenge in tailoring electronic structures, due to the lack of clear guidelines. Here, we develop a strategy wherein controlling the redox state of hydroquinone/benzoquinone (HQ/BQ) ligands allows...

article

Control of the Hydroquinone/Benzoquinone Redox State in High‐Mobility Semiconducting Conjugated Coordination Polymers

Xing Huang, Yang Li, Shuai Fu, Chao Ma, more

Angewandte Chemie > 136 > 20 > n/a - n/a

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INFONA - science communication portal

Search results for: Chao Ma

Pharmacokinetic study of iptacopan and its two acyl glucuronide metabolites in monkey plasma by liquid chromatography combined with electrospray ionization tandem mass spectrometry

The Impact of Sports Tourism Motivation on Tourist Loyalty: The Chain Mediation Effect of Experience Quality and Tourist Satisfaction

Harnessing Engineered Extracellular Vesicles from Mesenchymal Stem Cells as Therapeutic Scaffolds for Bone‐Related Diseases

N‐Type CuIn₅Se₈‐Based Thermoelectric Materials with All‐Scale Hierarchical Architectures

Multi‐omics integration analysis reveals the molecular mechanisms of drought adaptation in homologous tetraploid alfalfa(Medicago sativa ‘Xinjiang‐Daye’)

Bound‐based control design for permanent magnet linear motor servo system with inequality constraints and uncertainties

A Strain‐Temperature Integrated Polymer‐Derived SiCN Ceramic High Temperature Sensor with Wide‐Range and Ultra‐Short Response Time

High‐order robust control design with optimized parameters based on confidence index

Injectable Hydrogel Based on Enzymatic Initiation of Keratin Methacrylate for Controlled Exosome Release in Intervertebral Disc Degeneration Therapy

Accelerated 3D metabolite T₁ mapping of the brain using variable‐flip‐angle SPICE

Stereoselective Synthesis of Polysubstituted Dihydropyrroles via 1,5‐Addition and N‐1,4‐Addition Cascade

Coupling Nano and Atomic Electric Field Confinement for Robust Alkaline Oxygen Evolution

Dilute RuCo Alloy Synergizing Single Ru and Co Atoms as Efficient and CO‐Resistant Anode Catalyst for Anion Exchange Membrane Fuel Cells

Dilute RuCo Alloy Synergizing Single Ru and Co Atoms as Efficient and CO‐Resistant Anode Catalyst for Anion Exchange Membrane Fuel Cells

Coupling Nano and Atomic Electric Field Confinement for Robust Alkaline Oxygen Evolution

The Importance of Sintering‐Induced Grain Boundaries in Copper Catalysis to Improve Carbon‐Carbon Coupling

The Importance of Sintering‐Induced Grain Boundaries in Copper Catalysis to Improve Carbon‐Carbon Coupling

Elevated pretreatment serum apolipoprotein E level associated with poor prognosis of patients with COVID‐19 during the omicron BA.5 and BF.7 wave

Control of the Hydroquinone/Benzoquinone Redox State in High‐Mobility Semiconducting Conjugated Coordination Polymers

Control of the Hydroquinone/Benzoquinone Redox State in High‐Mobility Semiconducting Conjugated Coordination Polymers

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