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  1. Article ; Online: Macrophage Pyroptosis Induced by Candida Albicans.

    Zhang, Feng-Yuan / Lian, Ni / Li, Min

    Pathogens and disease

    2024  

    Abstract: Candida albicans (C. albicans) is a prevalent opportunistic pathogen that causes mucocutaneous and systemic infections, particularly in immunocompromised individuals. Macrophages play a crucial role in eliminating C. albicans in local and bloodstream ... ...

    Abstract Candida albicans (C. albicans) is a prevalent opportunistic pathogen that causes mucocutaneous and systemic infections, particularly in immunocompromised individuals. Macrophages play a crucial role in eliminating C. albicans in local and bloodstream contexts, while also regulating antifungal immune responses. However, C. albicans can induce macrophage lysis through pyroptosis, a type of regulated cell death. This process can enable C. albicans to escape from immune cells and trigger the release of IL-1β and IL-18, which can impact both the host and the pathogen. Nevertheless, the mechanisms by which C. albicans triggers pyroptosis in macrophages and the key factors involved in this process remain unclear. In this review, we will explore various factors that may influence or trigger pyroptosis in macrophages induced by C. albicans, such as hypha, ergosterol, cell wall remodeling, and other virulence factors. We will also examine the possible immune response following macrophage pyroptosis.
    Language English
    Publishing date 2024-03-18
    Publishing country United States
    Document type Journal Article
    ISSN 2049-632X
    ISSN (online) 2049-632X
    DOI 10.1093/femspd/ftae003
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Indirect measurement of infrared absorption spectrum through thermal emission of meta-cavity array.

    Chu, Qiong Qiong / Zhang, Feng Yuan / Zhang, Ye / Zhu, Shi Ning / Liu, Hui

    Optics express

    2023  Volume 31, Issue 24, Page(s) 39832–39840

    Abstract: Controlling thermal emission is essential for various infrared spectroscopy applications. Metasurfaces can be utilized to control multiple degrees of freedom of thermal emission, enabling the compact thermal emission materials and devices. Infrared ... ...

    Abstract Controlling thermal emission is essential for various infrared spectroscopy applications. Metasurfaces can be utilized to control multiple degrees of freedom of thermal emission, enabling the compact thermal emission materials and devices. Infrared spectroscopy such as FTIR (Fourier transform infrared spectroscopy), usually requires external infrared radiation source and complex spectroscopic devices for absorption spectrum measurement, which hinders the implementation of integrated compact and portable measurement equipment. Measuring absorption spectrum through the thermal emission of pixelated thermal emitter array can facilitate the integration and miniaturization of measurement setup, which is highly demanded for on-chip spectroscopy applications. Here, we experimentally demonstrate an integrated technology that allows for indirect measurement of the absorption spectrum through the thermal emission of meta-cavity array. This indirect measurement method opens a new avenue for compact infrared spectroscopy analysis.
    Language English
    Publishing date 2023-12-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1491859-6
    ISSN 1094-4087 ; 1094-4087
    ISSN (online) 1094-4087
    ISSN 1094-4087
    DOI 10.1364/OE.504375
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Highly Porous Iridium Thin Electrodes with Low Loading and Improved Reaction Kinetics for Hydrogen Generation in PEM Electrolyzer Cells.

    Ding, Lei / Wang, Weitian / Xie, Zhiqiang / Li, Kui / Yu, Shule / Capuano, Christopher B / Keane, Alex / Ayers, Kathy / Zhang, Feng-Yuan

    ACS applied materials & interfaces

    2023  Volume 15, Issue 20, Page(s) 24284–24295

    Abstract: Highly efficient electrodes with simplified fabrication and low cost are highly desired for the commercialization of proton exchange membrane electrolyzer cells (PEMECs). Herein, highly porous Ir-coated thin/tunable liquid/gas diffusion layers with ... ...

    Abstract Highly efficient electrodes with simplified fabrication and low cost are highly desired for the commercialization of proton exchange membrane electrolyzer cells (PEMECs). Herein, highly porous Ir-coated thin/tunable liquid/gas diffusion layers with honeycomb-structured catalyst layers were fabricated as anode electrodes for PEMECs via integrating a facile and fast electroplating process with efficient template removal. Combined with a Nafion 117 membrane, a low cell voltage of 1.842 V at 2000 mA/cm
    Language English
    Publishing date 2023-05-11
    Publishing country United States
    Document type Journal Article
    ISSN 1944-8252
    ISSN (online) 1944-8252
    DOI 10.1021/acsami.2c23304
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Discovering Reactant Supply Pathways at Electrode/PEM Reaction Interfaces Via a Tailored Interface-Visible Characterization Cell.

    Wang, Weitian / Ding, Lei / Xie, Zhiqiang / Yu, Shule / Canfield, Brian / Bender, Guido / Wrubel, Jacob A / Pivovar, Bryan S / Zhang, Feng-Yuan

    Small (Weinheim an der Bergstrasse, Germany)

    2023  Volume 19, Issue 28, Page(s) e2207809

    Abstract: In situ and micro-scale visualization of electrochemical reactions and multiphase transports on the interface of porous transport electrode (PTE) materials and solid polymer electrolyte (SPE) has been one of the greatest challenges for electrochemical ... ...

    Abstract In situ and micro-scale visualization of electrochemical reactions and multiphase transports on the interface of porous transport electrode (PTE) materials and solid polymer electrolyte (SPE) has been one of the greatest challenges for electrochemical energy conversion devices, such as proton exchange membrane electrolyzer cells (PEMECs), CO
    Language English
    Publishing date 2023-04-07
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2168935-0
    ISSN 1613-6829 ; 1613-6810
    ISSN (online) 1613-6829
    ISSN 1613-6810
    DOI 10.1002/smll.202207809
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Electrochemically Grown Ultrathin Platinum Nanosheet Electrodes with Ultralow Loadings for Energy-Saving and Industrial-Level Hydrogen Evolution.

    Ding, Lei / Xie, Zhiqiang / Yu, Shule / Wang, Weitian / Terekhov, Alexander Y / Canfield, Brian K / Capuano, Christopher B / Keane, Alex / Ayers, Kathy / Cullen, David A / Zhang, Feng-Yuan

    Nano-micro letters

    2023  Volume 15, Issue 1, Page(s) 144

    Abstract: Nanostructured catalyst-integrated electrodes with remarkably reduced catalyst loadings, high catalyst utilization and facile fabrication are urgently needed to enable cost-effective, green hydrogen production via proton exchange membrane electrolyzer ... ...

    Abstract Nanostructured catalyst-integrated electrodes with remarkably reduced catalyst loadings, high catalyst utilization and facile fabrication are urgently needed to enable cost-effective, green hydrogen production via proton exchange membrane electrolyzer cells (PEMECs). Herein, benefitting from a thin seeding layer, bottom-up grown ultrathin Pt nanosheets (Pt-NSs) were first deposited on thin Ti substrates for PEMECs via a fast, template- and surfactant-free electrochemical growth process at room temperature, showing highly uniform Pt surface coverage with ultralow loadings and vertically well-aligned nanosheet morphologies. Combined with an anode-only Nafion 117 catalyst-coated membrane (CCM), the Pt-NS electrode with an ultralow loading of 0.015 mg
    Language English
    Publishing date 2023-06-03
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2642093-4
    ISSN 2150-5551 ; 2150-5551
    ISSN (online) 2150-5551
    ISSN 2150-5551
    DOI 10.1007/s40820-023-01117-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Robust Copper-Based Nanosponge Architecture Decorated by Ruthenium with Enhanced Electrocatalytic Performance for Ambient Nitrogen Reduction to Ammonia.

    Li, Kui / Ding, Lei / Xie, Zhiqiang / Yang, Gaoqiang / Yu, Shule / Wang, Weitian / Cullen, David A / Meyer, Harry M / Hu, Guoxiang / Ganesh, Panchapakesan / Watkins, Thomas R / Zhang, Feng-Yuan

    ACS applied materials & interfaces

    2023  Volume 15, Issue 9, Page(s) 11703–11712

    Abstract: Electrochemical conversion of nitrogen to green ammonia is an attractive alternative to the Haber-Bosch process. However, it is currently bottlenecked by the lack of highly efficient electrocatalysts to drive the sluggish nitrogen reduction reaction ( ... ...

    Abstract Electrochemical conversion of nitrogen to green ammonia is an attractive alternative to the Haber-Bosch process. However, it is currently bottlenecked by the lack of highly efficient electrocatalysts to drive the sluggish nitrogen reduction reaction (N
    Language English
    Publishing date 2023-02-22
    Publishing country United States
    Document type Journal Article
    ISSN 1944-8252
    ISSN (online) 1944-8252
    DOI 10.1021/acsami.2c20809
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Robust Copper-Based Nanosponge Architecture Decorated by Ruthenium with Enhanced Electrocatalytic Performance for Ambient Nitrogen Reduction to Ammonia

    Li, Kui / Ding, Lei / Xie, Zhiqiang / Yang, Gaoqiang / Yu, Shule / Wang, Weitian / Cullen, David A. / Meyer, Harry M. / Hu, Guoxiang / Ganesh, Panchapakesan / Watkins, Thomas R. / Zhang, Feng-Yuan

    ACS Applied Materials & Interfaces. 2023 Feb. 22, v. 15, no. 9 p.11703-11712

    2023  

    Abstract: Electrochemical conversion of nitrogen to green ammonia is an attractive alternative to the Haber-Bosch process. However, it is currently bottlenecked by the lack of highly efficient electrocatalysts to drive the sluggish nitrogen reduction reaction (N₂ ... ...

    Abstract Electrochemical conversion of nitrogen to green ammonia is an attractive alternative to the Haber-Bosch process. However, it is currently bottlenecked by the lack of highly efficient electrocatalysts to drive the sluggish nitrogen reduction reaction (N₂RR). Herein, we strategically design a cost-effective bimetallic Ru-Cu mixture catalyst in a nanosponge (NS) architecture via a rapid and facile method. The porous NS mixture catalysts exhibit a large electrochemical active surface area and enhanced specific activity arising from the charge redistribution for improved activation and adsorption of the activated nitrogen species. Benefiting from the synergistic effect of the Cu constituent on morphology decoration and thermodynamic suppression of the competing hydrogen evolution reaction, the optimized Ru₀.₁₅Cu₀.₈₅ NS catalyst presents an impressive N₂RR performance with an ammonia yield rate of 26.25 μg h-¹ mgcₐₜ. -¹ (corresponding to 10.5 μg h-¹ cm-²) and Faradic efficiency of 4.39% as well as superior stability in alkaline medium, which was superior to that of monometallic Ru and Cu nanostructures. Additionally, this work develops a new bimetallic combination of Ru and Cu, which promotes the strategy to design efficient electrocatalysts for electrochemical ammonia production under ambient conditions.
    Keywords adsorption ; ammonia ; catalysts ; copper ; cost effectiveness ; electrochemistry ; hydrogen production ; nanomaterials ; nitrogen ; ruthenium ; surface area ; synergism ; thermodynamics ; electrocatalytic reduction of nitrogen ; green ammonia synthesis ; nanosponge architecture ; electrocatalysis ; bimetallic catalysts
    Language English
    Dates of publication 2023-0222
    Size p. 11703-11712.
    Publishing place American Chemical Society
    Document type Article ; Online
    ISSN 1944-8252
    DOI 10.1021/acsami.2c20809
    Database NAL-Catalogue (AGRICOLA)

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  8. Article: Direct thermal visualization of micro-scale hydrogen evolution reactions in proton exchange membrane electrolyzer cells

    Li, Yifan / Yang, Gaoqiang / Yu, Shule / Kang, Zhenye / Talley, Derrick A / Zhang, Feng-Yuan

    Energy conversion and management. 2019 Aug. 12,

    2019  

    Abstract: The heat generated from electrochemical reactions has been considered one of the most significant issues in terms of the reliability of energy conversion devices. So far, no systematic study on the relation between heat generation and electrochemical ... ...

    Abstract The heat generated from electrochemical reactions has been considered one of the most significant issues in terms of the reliability of energy conversion devices. So far, no systematic study on the relation between heat generation and electrochemical reaction exists, especially in the form of experiments. In this study, changes of the temperature distribution and hydrogen evolution reaction (HER) on the catalyst coated membrane (CCM) in proton exchange membrane electrolyzer cells (PEMECs) are in-situ visualized with the help of a novel PEMEC design, thermal spectroscopy and high-speed visualization system. At the channel-scale, the temperature increases rapidly for most of the active areas, and finally reaches the equilibrium state at 27 °C. The temperature distribution is non-uniform throughout the process. In addition, a series of pore-scale analyses are provided to clarify the relation between the temperature distribution and electrochemical reaction area. More interestingly, the rapid heat generation areas are found to be in a good agreement with the electrochemical reaction areas, which confirms that the heat is released during the reaction processes. Finally, the temperature evolution phenomena on the LGDL surface have also been recorded. These findings could help better understand the correlation between the cathode side electrochemical reaction and heat generation.
    Keywords administrative management ; area ; catalysts ; cathodes ; cells ; correlation ; design ; electrochemistry ; energy conversion ; heat ; hydrogen production ; reliability ; spectroscopy ; temperature
    Language English
    Dates of publication 2019-0812
    Publishing place Elsevier Ltd
    Document type Article
    Note NAL-light ; Pre-press version
    ZDB-ID 2000891-0
    ISSN 0196-8904
    ISSN 0196-8904
    DOI 10.1016/j.enconman.2019.111935
    Database NAL-Catalogue (AGRICOLA)

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  9. Article: Engineered Thin Diffusion Layers for Anion-Exchange Membrane Electrolyzer Cells with Outstanding Performance

    Li, Kui / Yu, Shule / Li, Dongguo / Ding, Lei / Wang, Weitian / Xie, Zhiqiang / Park, Eun Joo / Fujimoto, Cy / Cullen, David A. / Kim, Yu Seung / Zhang, Feng-Yuan

    ACS applied materials & interfaces. 2021 Oct. 19, v. 13, no. 43

    2021  

    Abstract: Anion-exchange membrane electrolyzer cells (AEMECs) are one of the most promising technologies for carbon-neutral hydrogen production. Over the past few years, the performance and durability of AEMECs have substantially improved. Herein, we report an ... ...

    Abstract Anion-exchange membrane electrolyzer cells (AEMECs) are one of the most promising technologies for carbon-neutral hydrogen production. Over the past few years, the performance and durability of AEMECs have substantially improved. Herein, we report an engineered liquid/gas diffusion layer (LGDL) with tunable pore morphologies that enables the high performance of AEMECs. The comparison with a commercial titanium foam in the electrolyzer indicated that the engineered LGDL with thin-flat and straight-pore structures significantly improved the interfacial contacts, mass transport, and activation of more reaction sites, leading to outstanding performance. We obtained a current density of 2.0 A/cm² at 1.80 V with an efficiency of up to 81.9% at 60 °C under 0.1 M NaOH-fed conditions. The as-achieved high performance in this study provides insight to design advanced LGDLs for the production of low-cost and high-efficiency AEMECs.
    Keywords anion-exchange membranes ; durability ; foams ; hydrogen production ; liquids ; mass transfer ; titanium
    Language English
    Dates of publication 2021-1019
    Size p. 50957-50964.
    Publishing place American Chemical Society
    Document type Article
    ISSN 1944-8252
    DOI 10.1021/acsami.1c14693
    Database NAL-Catalogue (AGRICOLA)

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  10. Article ; Online: Exploring the Impacts of Conditioning on Proton Exchange Membrane Electrolyzers by

    Wang, Weitian / Li, Kui / Ding, Lei / Yu, Shule / Xie, Zhiqiang / Cullen, David A / Yu, Haoran / Bender, Guido / Kang, Zhenye / Wrubel, Jacob A / Ma, Zhiwen / Capuano, Christopher B / Keane, Alex / Ayers, Kathy / Zhang, Feng-Yuan

    ACS applied materials & interfaces

    2022  Volume 14, Issue 7, Page(s) 9002–9012

    Abstract: For a proton exchange membrane electrolyzer cell (PEMEC), conditioning is an essential process to enhance its performance, reproducibility, and economic efficiency. To get more insights into conditioning, a PEMEC with Ir-coated gas diffusion electrode ( ... ...

    Abstract For a proton exchange membrane electrolyzer cell (PEMEC), conditioning is an essential process to enhance its performance, reproducibility, and economic efficiency. To get more insights into conditioning, a PEMEC with Ir-coated gas diffusion electrode (IrGDE) was investigated by electrochemistry and
    Language English
    Publishing date 2022-02-10
    Publishing country United States
    Document type Journal Article
    ISSN 1944-8252
    ISSN (online) 1944-8252
    DOI 10.1021/acsami.1c21849
    Database MEDical Literature Analysis and Retrieval System OnLINE

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