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Your search keyword '"Hu, Xiaoya"' showing total 149 results
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149 results on '"Hu, Xiaoya"'

18. Raw Materials strategy

Author

Padmanbhan, Veera, primary, Zakeri, Bijan, additional, Sami, Sudheer, additional, Minning, Stefan, additional, DiFore, Michael, additional, Mondia, Jessica, additional, Fair, Nathaniel, additional, Berry, Doug, additional, Lyman, Chris, additional, McFadden, Laura, additional, Deparis, Veronique, additional, Anant, Janmeet, additional, Nudson, Wade, additional, Bentley, Laura, additional, Stergar, Vesna, additional, Hu, Xiaoya, additional, Wiedel, Chris, additional, Han, Tzu Chiang, additional, Shierly, Eric, additional, Paschen, Stefan, additional, Vasudevan, Divya, additional, Biouet, Elham, additional, Dorman, Sara, additional, Gao, Fan, additional, Buchere, Catherien, additional, Jequier, Benjamin, additional, Ferreri, Michelle, additional, Coles, Nicola, additional, Holt, Lesley, additional, Kremer, Jannika, additional, and Lequeux, Isabelle, additional

Published
2022
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26. Amphiphilic Polymer Capped Perovskite Compositing with Nano Zr‐MOF for Nanozyme‐Involved Biomimetic Cascade Catalysis.

Author

Ye, Qiuyu, Yuan, Enxian, Shen, Jin, Ye, Mingli, Xu, Qin, Hu, Xiaoya, Shu, Yun, and Pang, Huan

Subjects
PEROVSKITE, CATALYSIS, OPTICAL materials, POLYMERS, PRUSSIAN blue, VITAMIN C, ZIRCONIUM compounds, PEROXIDASE
Abstract

CsPbX3 perovskite nanocrystal (NC) is considered as an excellent optical material and is widely applied in optoelectronics. However, its poor water stability impedes its study in enzyme‐like activity, and further inhibits its application in biomimetic cascade catalysis. Herein, for the first time, the oxidase‐like and ascorbate oxidase‐like activities of an amphiphilic polymer capped CsPbX3 are demonstrated, and its catalytic mechanism is further explored. Furthermore, an all‐nanozyme cascade system (multifunctional CsPbBr3@Zr‐metal organic framework (Zr‐MOF) and Prussian blue as oxidase‐like and peroxidase‐like nanozyme) is constructed with a portable paper‐based device for realizing the dual‐mode (ratiometric fluorescence and colorimetric) detection of ascorbic acid in a point‐of‐care (POC) fashion. This is the first report on the utilization of all‐inorganic CsPbX3 perovskite NC in biomimetic cascade catalysis, which opens a new avenue for POC clinical disease diagnosis. [ABSTRACT FROM AUTHOR]

Published
2023
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27. A bimetallic metal–organic framework with high enzyme-mimicking activity for an integrated electrochemical immunoassay of carcinoembryonic antigen.

Author

Shu, Yun, Yan, Lu, Ye, Mingli, Chen, Long, Xu, Qin, and Hu, Xiaoya

Subjects
CARCINOEMBRYONIC antigen, METAL-organic frameworks, POLYETHYLENE terephthalate manufacturing, IMMUNOASSAY, CONDUCTIVE ink, CATALYTIC activity, POLYETHYLENE
Abstract

Metal–organic frameworks (MOFs) show excellent catalytic activity and have been widely applied in diagnosis of diseases and tumors. However, current assay methods usually involve cumbersome configurations and complicated procedures, which inhibit their practical applications. Hence, a Cu–Ni MOF/carbon printed electrode (CPE)-based integrated electrochemical immunosensor was constructed for highly sensitive and efficient determination of carcinoembryonic antigen (CEA). First, highly conductive carbon ink was screen-printed onto a polyethylene terephthalate substrate to manufacture a CPE. Afterward, an aminated Cu-Ni MOF was prepared by a typical solvothermal strategy and modified on the CPE. Owing to its excellent peroxidase activity, the Cu–Ni MOF can catalytically oxidize hydroquinone using hydrogen peroxide, which greatly amplifies the peak current signal. Then the formation of an immune complex inhibited the catalytic activity of the MOF, thus enabling the quantitative determination of CEA content with a wide linear range of 0.5 pg mL−1–500 ng mL−1 and a low detection limit of 0.16 pg mL−1. Furthermore, the Cu–Ni MOF/CPE-based integrated portable electrochemical immunosensor also showed satisfactory performance in the detection of CEA in clinical serum samples with excellent accuracy, showing great potential for application in point-of-care disease diagnosis. [ABSTRACT FROM AUTHOR]

Published
2023
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34. The white blood cell count to mean platelet volume ratio for ischemic stroke patients after intravenous thrombolysis

Author

Weng, Yiyun, primary, Gao, Yufan, additional, Zhao, Mingyue, additional, Zeng, Tian, additional, Huang, Jiaqi, additional, Xie, Haobo, additional, Huang, Jiexi, additional, Chen, Yiqun, additional, Hu, Xiaoya, additional, Xu, Jiahan, additional, Zhu, Jinrong, additional, Lin, Suichai, additional, Ke, Tingting, additional, Li, Xiang, additional, and Zhang, Xu, additional

Published
2022
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43. Design of privacy-preserving control strategy for data opacity of industrial internet (面向工业互联网中数据不透明性的 隐私保护控制策略设计)

Author

Shen, Yi, Zhou, ChunJie, Hu, XiaoYa, Cheng, Cheng, He, Xin, Tai, RuoChen, and School of Electrical and Electronic Engineering

Subjects
Industrial Internet, Electrical and electronic engineering [Engineering], Networked Discrete-Event Systems
Abstract

With the continuous development of information and communication technologies (ICT) as well as their applications in the industrial environment, industrial internet comes into being. In comparison to the relatively closed and secure production environment of traditional industries, the industrial internet faces significant security challenges in terms of data privacy. This paper investigates the privacy-preserving control problem for data opacity of the industrial internet to provide a resilient defending strategy against cyber threats, where the system to be controlled is modeled as a networked discrete-event system (DES) and malicious eavesdroppers exist to infer the system secret based on its observations. We here aim at designing a networked supervisor to achieve the following two objectives: (1) eavesdroppers cannot infer the system secret based on its observations, which is formulated as the requirement of opacity enforcement, (2) under the control of the designed networked supervisor, the system could still achieve the predetermined control requirement. To solve the previously mentioned privacy-preserving supervisory control problem, this paper first proposes a privacy-preserving control architecture for networked DES, in which each component is modeled as a finite-state automaton to simulate its dynamics. We design an algorithm based on the constructed models to synthesize the networked supervisor by transforming the original privacy-preserving control problem into a classical Ramadge-Wonham supervisory control problem. Furthermore, this paper proves (1) the designed synthesis algorithm is sound and complete, and (2) the existence of the supremal networked supervisor for this privacy-preserving supervisory control problem. 国家重点研发计划 (编号: 2018YFB1701202) 和国家自然科学基金青年基金 (批准号: 51905197) 资助项目.

Published
2022

44. Ultra-stable CsPbBr3@PbBrOH nanorods for fluorescence labeling application based on methylimidazole-assisted synthesis.

Author

Guan, Jie, Yang, Dandan, Ma, Junyi, Shen, Yingzhuo, Xu, Qin, and Hu, Xiaoya

Abstract

The extension application of perovskites in aqueous media such as bioassays requires the development of a water-stable perovskite with a simple preparation process and low cost. However, the degradation of perovskites in aqueous solution is still a thorny problem. Here, we develop a methylimidazole-assisted two-step synthesis protocol to prepare CsPbBr3@PbBrOH nanorods with superior water stability and remarkable optical properties at room temperature. The synergy of 2-methylimidazole (2-MIM), an N-donor ligand, with water can not only facilitate CsPbBr3 formation and suppress CsPb2Br5 or Cs4PbBr6 formation, but also promote the formation of a PbBrOH shell capping CsPbBr3. 2-MIM is ionized into 2-MIM− in DMF and 2-MIM+ in water. They passivated the surface defects and changed the crystallization environment, leading to water-stable CsPbBr3@PbBrOH. The obtained CsPbBr3@PbBrOH nanorods can still maintain 91% PL intensity after being stored in water for more than 2 months. Furthermore, the CsPbBr3@PbBrOH nanorods show excellent stability in polar solvents, water, and phosphate buffer solution in a wide pH range, as well as better thermal and irradiation stability. In addition, the CsPbBr3@PbBrOH nanorods are further functionalized with polydopamine (PDA) for biomolecular immobilization and immunoassay studies. The resulting assay shows a detection limit of 0.003 ng mL−1 for IgG detection, illustrating important progress towards expanding fluorescence labeling application of perovskite nanomaterials for immunoassays. [ABSTRACT FROM AUTHOR]

Published
2023
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