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  1. Article ; Online: Crystallographic Disorder and Strong Magnetic Anisotropy in Dy

    Paske, Terry / Guan, Yingdong / Wang, Chaoguo / Moore, Curtis / Mao, Zhiqiang / Gui, Xin

    Inorganic chemistry

    2024  Volume 63, Issue 8, Page(s) 3648–3655

    Abstract: We report the crystal growth and characterization of a rare-earth-containing material, ... ...

    Abstract We report the crystal growth and characterization of a rare-earth-containing material, Dy
    Language English
    Publishing date 2024-02-14
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1484438-2
    ISSN 1520-510X ; 0020-1669
    ISSN (online) 1520-510X
    ISSN 0020-1669
    DOI 10.1021/acs.inorgchem.3c01850
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  2. Article ; Online: Synthesis and Magnetic, Optical, and Electrocatalytic Properties of High-Entropy Mixed-Metal Tungsten and Molybdenum Oxides.

    Katzbaer, Rowan R / Vincent, William M / Mao, Zhiqiang / Schaak, Raymond E

    Inorganic chemistry

    2023  Volume 62, Issue 20, Page(s) 7843–7852

    Abstract: High-entropy oxides (HEOs) are of interest for their unique physical and chemical properties. Significant lattice distortions, strain, and tolerance for high-vacancy concentrations set HEOs apart from single-metal or mixed-metal oxides. Herein, we ... ...

    Abstract High-entropy oxides (HEOs) are of interest for their unique physical and chemical properties. Significant lattice distortions, strain, and tolerance for high-vacancy concentrations set HEOs apart from single-metal or mixed-metal oxides. Herein, we synthesized and characterized the structures and compositions, along with the optical, magnetic, and electrocatalytic properties, of two families of high-entropy mixed-metal tungsten and molybdenum oxides, AWO
    Language English
    Publishing date 2023-05-10
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1484438-2
    ISSN 1520-510X ; 0020-1669
    ISSN (online) 1520-510X
    ISSN 0020-1669
    DOI 10.1021/acs.inorgchem.3c00541
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  3. Article: An activatable fluorescent probe enables in vivo evaluation of peroxynitrite levels in rheumatoid arthritis

    Wang, Zhao / Gong, Jiankang / Wang, Pengzhan / Xiong, Jianhua / Zhang, Fan / Mao, Zhiqiang

    Talanta. 2023 Jan. 15, v. 252

    2023  

    Abstract: An activatable probe able to detect RONS level underlying the development of rheumatoid arthritis (RA) would be far-reaching for the diagnosis and drug efficacy assessment of RA. Despite more and more evidence suggests that ONOO⁻ is an important ... ...

    Abstract An activatable probe able to detect RONS level underlying the development of rheumatoid arthritis (RA) would be far-reaching for the diagnosis and drug efficacy assessment of RA. Despite more and more evidence suggests that ONOO⁻ is an important signaling molecule participating in the RA disease, only rare fluorescent probes can detect ONOO⁻ in this disease with satisfying performance. To this end, we designed and synthesized a novel activatable AIE fluorescent probe (DPPO-PN) for the detection of ONOO⁻ levels in RA. The probe linearly responds to 0–10 μM ONOO⁻ with a significant far-red fluorescence enhancement at 632 nm in 30 s (F/F₀ = 161-fold, LOD = 10 nM) upon the excitation of 490 nm, elucidating excellent sensing abilities for ONOO⁻ in cuvettes. Moreover, the fluctuations of intracellular ONOO⁻ levels caused by adscititious adding or stimulant provoking could be real-time captured and visualized with this probe by confocal imaging. Further, the intravital imaging of ONOO⁻ in LPS-induced and CFA-induced RA mouse models also can be achieved with the aid of the probe, substantiating the burst of ONOO⁻ in the RA process. Therefore, this work not only offers an auxiliary tool for the diagnosis of RA but also would benefit our understanding of the ONOO⁻‘s roles in RA.
    Keywords drugs ; fluorescence ; fluorescent dyes ; mice ; rheumatoid arthritis
    Language English
    Dates of publication 2023-0115
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 1500969-5
    ISSN 1873-3573 ; 0039-9140
    ISSN (online) 1873-3573
    ISSN 0039-9140
    DOI 10.1016/j.talanta.2022.123811
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  4. Article: Deep residual U-net convolution neural networks with autoregressive strategy for fluid flow predictions in large-scale geosystems

    Jiang, Zhihao / Tahmasebi, Pejman / Mao, Zhiqiang

    Advances in water resources. 2021 Apr., v. 150

    2021  

    Abstract: The inherent complexity of the fluid flow in subsurface systems brings potential inevitable uncertainty in their characterization. Computationally intensive high-dimensional inversion problems often emerge in solving the fluid flow problems of various ... ...

    Abstract The inherent complexity of the fluid flow in subsurface systems brings potential inevitable uncertainty in their characterization. Computationally intensive high-dimensional inversion problems often emerge in solving the fluid flow problems of various scenarios, which required to be probed. To improve the efficiency of solving such problems, surrogate strategies are widely used to quantify the uncertainty of underground multiphase flow models. In this paper, a deep learning surrogate model is developed for predicting the time-dependent dynamic multiphase flow in a two-dimensional (2D) channelized geological system. The surrogate model is combined with a residual U-net and an autoregressive strategy, which considers the output at the previous time step as input and predict the output at the current time step. The residual U-net has a symmetric network structure similar to U-net and contains extra residual units. The rich skip connections in the network can promote information dissemination and achieve better prediction performance with fewer parameters. We demonstrated the performance of the autoregressive residual U-net (AR-Runet) for predicting the migration of solute transport in heterogeneous 2D binary model. The result shows the AR-Runet surrogate model can provide an accurate approximation of saturation and pressure fields at different times. We also have demonstrated that with the autoregressive strategy this network can achieve similar predict results with relatively less training data. The performance of the AR-Runet network is also compared with the autoregressive Dense net (AR-Dense). The findings indicate that the AR-Runet can provide effective measures for developing surrogate model and uncertainty analysis in dynamic multiphase flow predictions of subsurface systems.
    Keywords information dissemination ; prediction ; solutes ; uncertainty ; uncertainty analysis ; water
    Language English
    Dates of publication 2021-04
    Publishing place Elsevier Ltd
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2023320-6
    ISSN 1872-9657 ; 0309-1708
    ISSN (online) 1872-9657
    ISSN 0309-1708
    DOI 10.1016/j.advwatres.2021.103878
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  5. Article ; Online: Exchange-Driven Chern States in High-Mobility Intrinsic Magnetic Topological Insulators.

    Chong, Su Kong / Lei, Chao / Cheng, Yang / Lee, Seng Huat / Mao, Zhiqiang / MacDonald, Allan H / Wang, Kang L

    Physical review letters

    2024  Volume 132, Issue 14, Page(s) 146601

    Abstract: The layer-dependent Chern number (C) in MnBi_{2}Te_{4} is characterized by the presence of a Weyl semimetal state in the ferromagnetic coupling. However, the influence of a key factor, namely, the exchange coupling, remains unexplored. This study focuses ...

    Abstract The layer-dependent Chern number (C) in MnBi_{2}Te_{4} is characterized by the presence of a Weyl semimetal state in the ferromagnetic coupling. However, the influence of a key factor, namely, the exchange coupling, remains unexplored. This study focuses on characterizing the C=2 state in MnBi_{2}Te_{4}, which is classified as a higher C state resulting from the anomalous n=0 Landau levels (LLs). Our findings demonstrate that the exchange coupling parameter strongly influences the formation of this Chern state, leading to a competition between the C=1 and 2 states. Moreover, the emergence of odd-even LL sequences, resulting from the breaking of LL degeneracy, provides compelling evidence for the strong exchange coupling strength. These findings highlight the significance of the exchange coupling in understanding the behavior of Chern states and LLs in magnetic quantum systems.
    Language English
    Publishing date 2024-04-19
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.132.146601
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  6. Article ; Online: Band Gap Narrowing in a High-Entropy Spinel Oxide Semiconductor for Enhanced Oxygen Evolution Catalysis.

    Katzbaer, Rowan R / Dos Santos Vieira, Francisco Marques / Dabo, Ismaila / Mao, Zhiqiang / Schaak, Raymond E

    Journal of the American Chemical Society

    2023  Volume 145, Issue 12, Page(s) 6753–6761

    Abstract: High-entropy oxides (HEOs), which contain five or more metal cations that are generally thought to be randomly mixed in a crystalline oxide lattice, can exhibit unique and enhanced properties, including improved catalytic performance, due to synergistic ... ...

    Abstract High-entropy oxides (HEOs), which contain five or more metal cations that are generally thought to be randomly mixed in a crystalline oxide lattice, can exhibit unique and enhanced properties, including improved catalytic performance, due to synergistic effects. Here, we show that band gap narrowing emerges in a high-entropy aluminate spinel oxide, (Fe
    Language English
    Publishing date 2023-03-15
    Publishing country United States
    Document type Journal Article
    ZDB-ID 3155-0
    ISSN 1520-5126 ; 0002-7863
    ISSN (online) 1520-5126
    ISSN 0002-7863
    DOI 10.1021/jacs.2c12887
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  7. Article ; Online: Engineering an activatable fluorescent probe for studying ONOO

    Gong, Jiankang / Wang, Xiaoyu / Fan, Hai-En / Wang, Jiaxuan / Zhang, Fan / Mao, Zhiqiang

    Talanta

    2023  Volume 267, Page(s) 125216

    Abstract: Pyroptosis, a recently discovered form of programmed cell death, plays a pivotal role in oncological treatment. Howbeit, the mechanisms underlying pyroptosis in tumor treatment remain unclear. Previous research has demonstrated that the occurrence of ... ...

    Abstract Pyroptosis, a recently discovered form of programmed cell death, plays a pivotal role in oncological treatment. Howbeit, the mechanisms underlying pyroptosis in tumor treatment remain unclear. Previous research has demonstrated that the occurrence of pyroptosis generally accompanies a surge of reactive oxygen species (ROS) generation, with ONOO
    MeSH term(s) Fluorescent Dyes/pharmacology ; Reactive Oxygen Species ; Cell Line, Tumor ; Antineoplastic Agents ; Peroxynitrous Acid
    Chemical Substances Fluorescent Dyes ; Reactive Oxygen Species ; Antineoplastic Agents ; Peroxynitrous Acid (14691-52-2)
    Language English
    Publishing date 2023-09-16
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1500969-5
    ISSN 1873-3573 ; 0039-9140
    ISSN (online) 1873-3573
    ISSN 0039-9140
    DOI 10.1016/j.talanta.2023.125216
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  8. Article ; Online: Evaluation of peroxynitrite fluxes in inflammatory mice with a ratiometric fluorescence probe.

    Zhou, Zhenhua / Wang, Xiaoyu / Wang, Zhao / Wu, Jiao / Zhang, Fan / Mao, Zhiqiang

    Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

    2023  Volume 294, Page(s) 122503

    Abstract: Inflammation is a critical physiological process in the human body, which is closely related to numerous disorders and cancers. ... ...

    Abstract Inflammation is a critical physiological process in the human body, which is closely related to numerous disorders and cancers. ONOO
    MeSH term(s) Mice ; Humans ; Animals ; Peroxynitrous Acid ; Fluorescent Dyes ; Inflammation ; Disease Models, Animal
    Chemical Substances Peroxynitrous Acid (14691-52-2) ; Fluorescent Dyes
    Language English
    Publishing date 2023-02-16
    Publishing country England
    Document type Journal Article
    ZDB-ID 210413-1
    ISSN 1873-3557 ; 0370-8322 ; 0584-8539 ; 1386-1425
    ISSN (online) 1873-3557
    ISSN 0370-8322 ; 0584-8539 ; 1386-1425
    DOI 10.1016/j.saa.2023.122503
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  9. Article ; Online: Engineering Sandwiched Nanochannel Aptasensor for Efficiently Screening Cancer Cells.

    Lv, Rui / Wang, Xing / Mao, Zhiqiang / Bai, Yurong / Hao, Junxing / Zhang, Fan

    Chemistry (Weinheim an der Bergstrasse, Germany)

    2023  Volume 29, Issue 14, Page(s) e202203380

    Abstract: Cancer cells are a class of important tumor biomarkers and are closely related to tumorous progression. It is urgent to develop a sensitive and highly efficient method for the rapid and accurate detection of cancer cells. Herein, an aptamer sandwiched ... ...

    Abstract Cancer cells are a class of important tumor biomarkers and are closely related to tumorous progression. It is urgent to develop a sensitive and highly efficient method for the rapid and accurate detection of cancer cells. Herein, an aptamer sandwiched nanochannel electrochemical sensor was established for the highly selective determination of cancer cells. By virtue of the porous nanochannels as the filter platform and immobilized with DNA aptamers for specifically capturing the cancer cells, the nanochannel-based electrochemical sensor denotes excellent performance for MCF-7 screening, and allowing a low limit of detection of 36 cells mL
    MeSH term(s) Early Detection of Cancer ; Limit of Detection ; Biomarkers, Tumor ; Aptamers, Nucleotide/chemistry ; Biosensing Techniques/methods ; Neoplasms
    Chemical Substances Biomarkers, Tumor ; Aptamers, Nucleotide
    Language English
    Publishing date 2023-02-06
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1478547-X
    ISSN 1521-3765 ; 0947-6539
    ISSN (online) 1521-3765
    ISSN 0947-6539
    DOI 10.1002/chem.202203380
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  10. Article ; Online: Cysteine-Activatable Near-Infrared Fluorescent Probe for Dual-Channel Tracking Lipid Droplets and Mitochondria in Epilepsy

    Li, Songjiao / Wang, Peipei / Ye, Miantai / Yang, Ke / Cheng, Dan / Mao, Zhiqiang / He, Longwei / Liu, Zhihong

    Analytical Chemistry. 2023 Mar. 09, v. 95, no. 11 p.5133-5141

    2023  

    Abstract: Dual-channel fluorescent probes could respond to a specific target and emit different wavelengths of fluorescence before and after the response. Such probes could alleviate the influence caused by the variation of the probe concentration, excitation ... ...

    Abstract Dual-channel fluorescent probes could respond to a specific target and emit different wavelengths of fluorescence before and after the response. Such probes could alleviate the influence caused by the variation of the probe concentration, excitation intensity, and so on. However, for most dual-channel fluorescent probes, the probe and fluorophore faced spectral overlap, which reduced sensitivity and accuracy. Herein, we introduced a cysteine (Cys)-responsive and near-infrared (NIR) emissive AIEgen (named TSQC) with good biocompatibility to dual-channel monitor Cys in mitochondria and lipid droplets (LDs) during cell apoptosis through wash-free fluorescence bio-imaging. TSQC can label mitochondria with bright fluorescence around 750 nm, and after reacting with Cys, the reaction product TSQ could spontaneously target LDs with emissions around 650 nm. Such spatially separated dual-channel fluorescence responses could significantly improve detection sensitivity and accuracy. Furthermore, the Cys-triggered dual-channel fluorescence imaging in LDs and mitochondria during apoptosis induced by UV light exposure, H₂O₂, or LPS treatment is clearly observed for the first time. Besides, we also report here that TSQC can be used to image subcellular Cys in different cell lines by measuring the fluorescence intensities of different emission channels. In particular, TSQC shows superior utility for the in vivo imaging of apoptosis in acute and chronic epilepsy mice. In brief, the newly designed NIR AIEgen TSQC can respond to Cys and separate two fluorescence signals to mitochondria and LDs, respectively, to study Cys-related apoptosis.
    Keywords analytical chemistry ; apoptosis ; biocompatibility ; bioimaging ; cysteine ; detection limit ; epilepsy ; fluorescence ; fluorescent dyes ; lipids ; mitochondria ; ultraviolet radiation
    Language English
    Dates of publication 2023-0309
    Size p. 5133-5141.
    Publishing place American Chemical Society
    Document type Article ; Online
    ZDB-ID 1508-8
    ISSN 1520-6882 ; 0003-2700
    ISSN (online) 1520-6882
    ISSN 0003-2700
    DOI 10.1021/acs.analchem.3c00226
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