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  1. Article ; Online: Controllable synthesis of bifunctional magnetic carbon dots for rapid fluorescent detection and reversible removal of Hg

    Song, Ying / Xie, Ruyan / Tian, Miaomiao / Mao, Baodong / Chai, Fang

    Journal of hazardous materials

    2023  Volume 457, Page(s) 131683

    Abstract: Mercury is one of the most toxic heavy metals, whose identification and separation are crucial for environmental remediation. Till now, it remains a significant challenge upon simultaneous detection and removal of ... ...

    Abstract Mercury is one of the most toxic heavy metals, whose identification and separation are crucial for environmental remediation. Till now, it remains a significant challenge upon simultaneous detection and removal of Hg
    Language English
    Publishing date 2023-05-24
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1491302-1
    ISSN 1873-3336 ; 0304-3894
    ISSN (online) 1873-3336
    ISSN 0304-3894
    DOI 10.1016/j.jhazmat.2023.131683
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  2. Article ; Online: Controllable synthesis of bifunctional magnetic carbon dots for rapid fluorescent detection and reversible removal of Hg2+

    Song, Ying / Xie, Ruyan / Tian, Miaomiao / Mao, Baodong / Chai, Fang

    Journal of Hazardous Materials. 2023 Sept., v. 457 p.131683-

    2023  

    Abstract: Mercury is one of the most toxic heavy metals, whose identification and separation are crucial for environmental remediation. Till now, it remains a significant challenge upon simultaneous detection and removal of Hg²⁺. Herein, bifunctional probe ... ...

    Abstract Mercury is one of the most toxic heavy metals, whose identification and separation are crucial for environmental remediation. Till now, it remains a significant challenge upon simultaneous detection and removal of Hg²⁺. Herein, bifunctional probe magnetic carbon dots were synthesized and optimized via systematic structure manipulation of the carbon and iron precursors towards fluorescence, Hg²⁺ adsorption and magnetic separation. The probe exhibited blue emission at 440 nm with high quantum yield of 55 % and a high paramagnetism with the saturation magnetization value of 22.70 emu/g. Furthermore, the fluorescent detection of Hg²⁺ with limit of 5.40 nM and high selectivity were achieved through surface structure manipulation with moderate -NH₂, -SH and Fe contents. As a result, the magnetic removal of Hg²⁺ was consecutively effectuated with high removal efficiency of 98.30 %. The detection and recovery of Hg²⁺ in real samples were further verified and demonstrated the excellent environmental tolerance of probe. The reusability was viable with recycling at least three turns by external magnet. This work not only provides a promising approach for simultaneous detection and removal of heavy metal pollution, but also provides an excellent example as a versatile platform for multifunction integration via the structure manipulation for other applications.
    Keywords adsorption ; carbon ; fluorescence ; heavy metals ; magnetic materials ; magnetic separation ; mercury ; paramagnetism ; pollution ; remediation ; toxicity ; CDs ; Fe3O4 ; Detection and Separation ; Recycle ; Water remediation
    Language English
    Dates of publication 2023-09
    Size p. 131683
    Publishing place Elsevier B.V.
    Document type Article ; Online
    Note Pre-press version
    ZDB-ID 1491302-1
    ISSN 1873-3336 ; 0304-3894
    ISSN (online) 1873-3336
    ISSN 0304-3894
    DOI 10.1016/j.jhazmat.2023.131683
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  3. Article ; Online: The synthesis of gold nanoclusters with high stability and their application in fluorometric detection for Hg2+ and cell imaging

    Xie, Ruyan / Su, Dongyue / Song, Ying / Sun, Peng / Mao, Baodong / Tian, Miaomiao / Chai, Fang

    Talanta. 2023 Aug., v. 260 p.124573-

    2023  

    Abstract: Sensing Hg²⁺ is significant to protecting human health and environmental ecosystems, for its toxicity and genotoxicity. Here, highly stable fluorescent folic acid (FA)-protected Au nanoclusters (FA-AuNCs) were synthesized by optimizing the reactive ... ...

    Abstract Sensing Hg²⁺ is significant to protecting human health and environmental ecosystems, for its toxicity and genotoxicity. Here, highly stable fluorescent folic acid (FA)-protected Au nanoclusters (FA-AuNCs) were synthesized by optimizing the reactive parameters with high quantum yield of 34.7%. Main components of Au₄L were confirmed by MALDI-TOF, and the electron-rich residues of FA shell enabled FA-AuNCs excellent photostability. FA-AuNCs exhibited sensitive response behavior to Hg²⁺ with a minimum detectability of 1.3 nM, and presented extreme effect to the detection of Hg²⁺ in real water. Notably, the cellular imaging and in-situ detection of Hg²⁺ in cells can be achieved visually. The high selectivity was attributed to the chemical bond formed between Au⁺ (4f¹⁴5d¹⁰) and Hg²⁺ (4f¹⁴5d¹⁰). And the internal filter effect and static quenching effect were proved triggering the quenching of FA-AuNCs. The ultra-stable FA-AuNCs provide a potential promising opportunity for the in-situ tracing Hg²⁺ from environmental and biological samples.
    Keywords fluorescence ; fluorometry ; folic acid ; genotoxicity ; human health ; nanogold ; photostability ; Au nanoclusters ; Fluorescent nanoprobe ; Mercury ; Quantitative detection ; Living cell imaging
    Language English
    Dates of publication 2023-08
    Publishing place Elsevier B.V.
    Document type Article ; Online
    ZDB-ID 1500969-5
    ISSN 1873-3573 ; 0039-9140
    ISSN (online) 1873-3573
    ISSN 0039-9140
    DOI 10.1016/j.talanta.2023.124573
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  4. Article ; Online: The synthesis of gold nanoclusters with high stability and their application in fluorometric detection for Hg

    Xie, Ruyan / Su, Dongyue / Song, Ying / Sun, Peng / Mao, Baodong / Tian, Miaomiao / Chai, Fang

    Talanta

    2023  Volume 260, Page(s) 124573

    Abstract: ... Sensing ... ...

    Abstract Sensing Hg
    MeSH term(s) Humans ; Gold/chemistry ; Ecosystem ; Metal Nanoparticles/chemistry ; Mercury/chemistry ; Fluorometry
    Chemical Substances Gold (7440-57-5) ; Mercury (FXS1BY2PGL)
    Language English
    Publishing date 2023-04-23
    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.2023.124573
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  5. Article ; Online: Dual-mode fluorimetric and colorimetric sensors based on iron and nitrogen co-doped carbon dots for the detection of dopamine.

    Sun, Peng / Shang, Mingzhao / Xie, Ruyan / Gao, Yu / Tian, Miaomiao / Dai, Qijun / Zhang, Fang / Chai, Fang

    Food chemistry

    2024  Volume 445, Page(s) 138794

    Abstract: Determination of dopamine (DA) is crucial for its intimate relationship with clinical trials and biological environment. Herein, Fe, N co-doped carbon dots (AFC-CDs) were fabricated by optimizing precursors and reaction conditions for fluorimetric/ ... ...

    Abstract Determination of dopamine (DA) is crucial for its intimate relationship with clinical trials and biological environment. Herein, Fe, N co-doped carbon dots (AFC-CDs) were fabricated by optimizing precursors and reaction conditions for fluorimetric/colorimetric dual-mode sensing of DA. With synergistic influence of Förster resonance energy transfer and static quenching effect, DA significantly quenched the blue luminescence of AFC-CDs at 442 nm, the production of recognizable tan-brown complex caused evident colorimetric response, achieved the dual-mode fluorimetric/colorimetric sensing for DA. The excellent selectivity and satisfied sensitivity can be confirmed with the limit of detection at 0.29 μM and 2.31 μM via fluorimetric/colorimetric mode respectively. The reliability and practicability were proved by recovery of 94.81-101.61% in real samples. Notably, the proposed electron transfer way between AFC-CDs and DA was hypothesized logically, indicated dual-mode probe provided a promising platform for the sensing of trace DA, and could be expanded in environment and food safety.
    MeSH term(s) Iron ; Colorimetry ; Dopamine ; Reproducibility of Results ; Carbon ; Nitrogen ; Quantum Dots
    Chemical Substances Iron (E1UOL152H7) ; Dopamine (VTD58H1Z2X) ; Carbon (7440-44-0) ; Nitrogen (N762921K75)
    Language English
    Publishing date 2024-02-18
    Publishing country England
    Document type Journal Article
    ZDB-ID 243123-3
    ISSN 1873-7072 ; 0308-8146
    ISSN (online) 1873-7072
    ISSN 0308-8146
    DOI 10.1016/j.foodchem.2024.138794
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    In stock of ZB MED Bonn / Germany

    Z 3634: Show issues

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  6. Article ; Online: A peptide-based pH-sensitive antibacterial hydrogel for healing drug-resistant biofilm-infected diabetic wounds.

    Fan, Duoyang / Xie, Ruyan / Liu, Xiaohui / Li, Haohan / Luo, Ziheng / Li, Yanbing / Chen, Fei / Zeng, Wenbin

    Journal of materials chemistry. B

    2024  

    Abstract: Diabetic foot ulcers are a significant complication affecting roughly 15% of diabetic patients. These chronic wounds can be incredibly burdensome, leading to high treatment costs, potential amputations, and additional health complications. ... ...

    Abstract Diabetic foot ulcers are a significant complication affecting roughly 15% of diabetic patients. These chronic wounds can be incredibly burdensome, leading to high treatment costs, potential amputations, and additional health complications. Microbiological studies reveal that bacterial infections are the primary culprit behind delayed wound healing. To solve the problem of infection at the wound site, the most fundamental thing is to kill the pathogenic bacteria. Herein, a neoteric strategy to construct novel antibacterial hydrogel COA-T3 that combined photosensitizers (PSs) and antimicrobial peptides (AMPs)
    Language English
    Publishing date 2024-05-15
    Publishing country England
    Document type Journal Article
    ZDB-ID 2702241-9
    ISSN 2050-7518 ; 2050-750X
    ISSN (online) 2050-7518
    ISSN 2050-750X
    DOI 10.1039/d4tb00594e
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  7. Article: Mechanisms of Short-Chain Fatty Acids Derived from Gut Microbiota in Alzheimer's Disease.

    Qian, Xiao-Hang / Xie, Ru-Yan / Liu, Xiao-Li / Chen, Sheng-di / Tang, Hui-Dong

    Aging and disease

    2022  Volume 13, Issue 4, Page(s) 1252–1266

    Abstract: Short-chain fatty acids (SCFAs) are important metabolites derived from the gut microbiota through fermentation of dietary fiber. SCFAs participate a number of physiological and pathological processes in the human body, such as host metabolism, immune ... ...

    Abstract Short-chain fatty acids (SCFAs) are important metabolites derived from the gut microbiota through fermentation of dietary fiber. SCFAs participate a number of physiological and pathological processes in the human body, such as host metabolism, immune regulation, appetite regulation. Recent studies on gut-brain interaction have shown that SCFAs are important mediators of gut-brain interactions and are involved in the occurrence and development of many neurodegenerative diseases, including Alzheimer's disease. This review summarizes the current research on the potential roles and mechanisms of SCFAs in AD. First, we introduce the metabolic distribution, specific receptors and signaling pathways of SCFAs in human body. The concentration levels of SCFAs in AD patient/animal models are then summarized. In addition, we illustrate the effects and mechanisms of SCFAs on the cognitive level, pathological features (Aβ and tau) and neuroinflammation in AD. Finally, we analyze the translational value of SCFAs as potential therapeutic targets for the treatment of AD.
    Language English
    Publishing date 2022-07-11
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2625789-0
    ISSN 2152-5250
    ISSN 2152-5250
    DOI 10.14336/AD.2021.1215
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  8. Article ; Online: Portable smartphone-integrated AuAg nanoclusters electrospun membranes for multivariate fluorescent sensing of Hg

    Wu, Hongbo / Xie, Ruyan / Hao, Yunqi / Pang, Jingyu / Gao, Hong / Qu, Fengyu / Tian, Miaomiao / Guo, Changhong / Mao, Baodong / Chai, Fang

    Food chemistry

    2023  Volume 418, Page(s) 135961

    Abstract: Detection of heavy metals have been pivotal due to their non-biodegradability and food chain accumulation. Herein, a multivariate ratiometric sensor was developed by in situ integrating AuAg nanoclusters (NCs) into electrospun cellulose acetate ... ...

    Abstract Detection of heavy metals have been pivotal due to their non-biodegradability and food chain accumulation. Herein, a multivariate ratiometric sensor was developed by in situ integrating AuAg nanoclusters (NCs) into electrospun cellulose acetate nanofibrous membranes (AuAg-ENM) for visual detection of Hg
    MeSH term(s) Copper ; Fluorescent Dyes ; Gold ; Histidine ; Mercury ; Silver ; Smartphone ; Spectrometry, Fluorescence ; Water ; Nanostructures
    Chemical Substances Copper (789U1901C5) ; Fluorescent Dyes ; Gold (7440-57-5) ; Histidine (4QD397987E) ; Mercury (FXS1BY2PGL) ; Silver (3M4G523W1G) ; Water (059QF0KO0R)
    Language English
    Publishing date 2023-03-21
    Publishing country England
    Document type Journal Article
    ZDB-ID 243123-3
    ISSN 1873-7072 ; 0308-8146
    ISSN (online) 1873-7072
    ISSN 0308-8146
    DOI 10.1016/j.foodchem.2023.135961
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    In stock of ZB MED Bonn / Germany

    Z 3634: Show issues

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  9. Article ; Online: Portable smartphone-integrated AuAg nanoclusters electrospun membranes for multivariate fluorescent sensing of Hg2+, Cu2+ and l-histidine in water and food samples

    Wu, Hongbo / Xie, Ruyan / Hao, Yunqi / Pang, Jingyu / Gao, Hong / Qu, Fengyu / Tian, Miaomiao / Guo, Changhong / Mao, Baodong / Chai, Fang

    Food Chemistry. 2023 Aug., v. 418 p.135961-

    2023  

    Abstract: Detection of heavy metals have been pivotal due to their non-biodegradability and food chain accumulation. Herein, a multivariate ratiometric sensor was developed by in situ integrating AuAg nanoclusters (NCs) into electrospun cellulose acetate ... ...

    Abstract Detection of heavy metals have been pivotal due to their non-biodegradability and food chain accumulation. Herein, a multivariate ratiometric sensor was developed by in situ integrating AuAg nanoclusters (NCs) into electrospun cellulose acetate nanofibrous membranes (AuAg-ENM) for visual detection of Hg²⁺, Cu²⁺ and consecutive sensing of l-histidine (His), which was integrated into a smartphone platform for quantitative on-site detection. AuAg-ENM achieved multivariate detection of Hg²⁺ and Cu²⁺ by fluorescence quenching, and subsequent selective recovery of the Cu²⁺-quenched fluorescence by His, which distinguished Hg²⁺ and Cu²⁺ and fulfilled determination of His simultaneously. Notably, AuAg-ENM achieved selective monitoring of Hg²⁺, Cu²⁺ and His in water, food and serum samples with high accuracy comparable to ICP and HPLC tests. A logic gate circuit was devised to further explain and promote the application of AuAg-ENM detection by smartphone App. This portable AuAg-ENM provides a promising reference for fabricating intelligent visual sensors for multiple detection.
    Keywords blood serum ; cellulose acetate ; fluorescence ; food chain ; food chemistry ; histidine ; mobile telephones ; nanofibers ; nanoparticles ; AuAg nanoclusters ; Electrospun nanofibrous membrane ; Multivariate detection ; Hg2+ ; Cu2+ ; l-histidine
    Language English
    Dates of publication 2023-08
    Publishing place Elsevier Ltd
    Document type Article ; Online
    ZDB-ID 243123-3
    ISSN 1873-7072 ; 0308-8146
    ISSN (online) 1873-7072
    ISSN 0308-8146
    DOI 10.1016/j.foodchem.2023.135961
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

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  10. Article ; Online: The synthesis of Cu nanoclusters and their dual mode colorimetric and fluorescent sensing for 2,4-dinitrophenol.

    Xie, Ruyan / Zhang, Nannan / Qu, Yaoyao / Tang, Mingyu / Zhang, Fang / Chai, Fang / Su, Zhongmin

    Nanotechnology

    2021  Volume 33, Issue 2

    Abstract: Herein, we have reported a facile one-pot strategy to synthesize fluorescent Cu nanclusters (Cu NCs) by using ʟ-histidine as stabilizer, and ascorbic acid as reducing agent. Cu NCs are stable, water-dispersible, and emit bright cyan emission with a ... ...

    Abstract Herein, we have reported a facile one-pot strategy to synthesize fluorescent Cu nanclusters (Cu NCs) by using ʟ-histidine as stabilizer, and ascorbic acid as reducing agent. Cu NCs are stable, water-dispersible, and emit bright cyan emission with a quantum yield 26.08%. The Cu NCs can be employed as colorimetric and fluorimetric dual-mode detector, exhibiting excellent selectivity and sensitivity for detecting 2,4-dinitrophenol (DNP) specifically. Notably, Cu NCs were a sensitive sensor, which had speciality to detect DNP in range of linearity from 0.01 to 0.15 mM with a discernable limit as low as 3.96
    Language English
    Publishing date 2021-10-22
    Publishing country England
    Document type Journal Article
    ZDB-ID 1362365-5
    ISSN 1361-6528 ; 0957-4484
    ISSN (online) 1361-6528
    ISSN 0957-4484
    DOI 10.1088/1361-6528/ac2c47
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