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  1. Article ; Online: Improving the transmittance of the plasmonic slot filter by using a single reflector.

    Tang, Ding-Kang

    Applied optics

    2022  Volume 61, Issue 27, Page(s) 7807–7812

    Abstract: A scheme to improve the transmittance of the metal-insulator-metal (MIM) plasmonic slot filter is proposed and numerically studied. Using this scheme, the transmittance of all channels in the MIM slot filter can be significantly improved by using only ... ...

    Abstract A scheme to improve the transmittance of the metal-insulator-metal (MIM) plasmonic slot filter is proposed and numerically studied. Using this scheme, the transmittance of all channels in the MIM slot filter can be significantly improved by using only one reflector. The simulation results show that the transmittance of all channels with this scheme is almost 160% higher than without it. A single-channel filter at 980 nm and a three-channel filter are both demonstrated using this scheme. All the work above is completed by the finite-element analysis method. The model and characteristics of the structure with periodical stubs are also introduced and analyzed. For the first time, to our knowledge, the expressions of all four elements of the transfer matrix together with the reflectance of the periodical stubs are given. It is believed that our research will help to provide new ideas for improving transmittance and promote the application of plasmonic filters.
    Language English
    Publishing date 2022-10-03
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4522
    ISSN (online) 1539-4522
    DOI 10.1364/AO.470514
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: A case of Kaposi sarcoma arising from giant condyloma acuminatum.

    Ge, Yuanyuan / Yu, Miao / Si, Zhonghua / Ding, Kang

    Asian journal of surgery

    2023  Volume 47, Issue 3, Page(s) 1441–1442

    MeSH term(s) Humans ; Buschke-Lowenstein Tumor/surgery ; Sarcoma, Kaposi/etiology ; Sarcoma, Kaposi/surgery ; Anus Neoplasms ; Condylomata Acuminata/surgery
    Language English
    Publishing date 2023-12-12
    Publishing country Netherlands
    Document type Case Reports ; Letter
    ZDB-ID 1068461-x
    ISSN 0219-3108 ; 1015-9584
    ISSN (online) 0219-3108
    ISSN 1015-9584
    DOI 10.1016/j.asjsur.2023.11.120
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Arabidopsis Leaf Chloroplasts Have a Specific Sphingolipidome.

    Yang, Chang / Wang, Ling-Yan / Li, Yong-Kang / Lin, Jia-Ting / Chen, Ding-Kang / Yao, Nan

    Plants (Basel, Switzerland)

    2024  Volume 13, Issue 2

    Abstract: Sphingolipids are ubiquitous in eukaryotes and certain prokaryotes, where they serve as vital components of biological membranes and bioactive molecules. Chloroplasts have complex membrane structures that play crucial roles in photosynthesis, but their ... ...

    Abstract Sphingolipids are ubiquitous in eukaryotes and certain prokaryotes, where they serve as vital components of biological membranes and bioactive molecules. Chloroplasts have complex membrane structures that play crucial roles in photosynthesis, but their specific sphingolipidome remains unreported. In this study, we used liquid chromatography-mass spectrometry (LC-MS/MS) to analyze the sphingolipidome of purified
    Language English
    Publishing date 2024-01-19
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2704341-1
    ISSN 2223-7747
    ISSN 2223-7747
    DOI 10.3390/plants13020299
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Copper-Catalyzed Dynamic Kinetic Asymmetric P-C Coupling of Secondary Phosphine Oxides and Aryl Iodides.

    Kang, Jie / Ding, Kang / Ren, Si-Mu / Su, Bo

    Angewandte Chemie (International ed. in English)

    2023  Volume 62, Issue 25, Page(s) e202301628

    Abstract: Transition-metal-catalyzed enantioselective P-C cross-coupling of secondary phosphine oxides (SPOs) is an attractive method for synthesizing P-stereogenic phosphorus compounds, but the development of such a dynamic kinetic asymmetric process remains a ... ...

    Abstract Transition-metal-catalyzed enantioselective P-C cross-coupling of secondary phosphine oxides (SPOs) is an attractive method for synthesizing P-stereogenic phosphorus compounds, but the development of such a dynamic kinetic asymmetric process remains a considerable challenge. Here we report an unprecedented highly enantioselective dynamic kinetic intermolecular P-C coupling of SPOs and aryl iodides catalyzed by copper complexes ligated by a finely modified chiral 1,2-diamine ligand. The reaction tolerates a wide range of SPOs and aryl iodides, affording P-stereogenic tertiary phosphine oxides (TPOs) in high yields and with good enantioselectivity (average 89.2 % ee). The resulting enantioenriched TPOs were transformed into structurally diverse P-chiral scaffolds, which are highly valuable as ligands and catalysts in asymmetric synthesis.
    MeSH term(s) Copper ; Oxides ; Iodides ; Molecular Structure ; Catalysis
    Chemical Substances Copper (789U1901C5) ; phosphine (FW6947296I) ; Oxides ; Iodides
    Language English
    Publishing date 2023-05-04
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.202301628
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: The bibenzyl derivatives of Dendrobium officinale prevent UV-B irradiation induced photoaging via SIRT3.

    Chen, Ding-Kang / Shao, Hui-Yan / Yang, Liu / Hu, Jiang-Miao

    Natural products and bioprospecting

    2022  Volume 12, Issue 1, Page(s) 1

    Abstract: Dendrobium officinale is a valuable medicinal herb that is widely used in traditional Chinese medicine. The chemical constituents of D. officinale have attracted much attention and a large number of compounds have been reported including many bibenzyl ... ...

    Abstract Dendrobium officinale is a valuable medicinal herb that is widely used in traditional Chinese medicine. The chemical constituents of D. officinale have attracted much attention and a large number of compounds have been reported including many bibenzyl derivatives. 13 bibenzyl derivatives from D. officinale were sent for molecular docking, surface plasmon resonance (SPR) assay and after detection of Mn-SOD and SIRT3 activities in or not in HaCaT cells, it was concluded that bibenzyl derivatives did not directly activate Mn-SOD but promoted SIRT3 proteins. In addition, HaCaT cells were irradiated with UV-B to induce an oxidative stress model in vitro to further verify the effect of bibenzyl derivatives. The results show that bibenzyl derivatives could directly bind to SIRT3, enhance the deacetylation and then activate Mn-SOD, so as to protect UV-B induced skin photoaging.
    Language English
    Publishing date 2022-01-27
    Publishing country Germany
    Document type Journal Article
    ISSN 2192-2195
    ISSN 2192-2195
    DOI 10.1007/s13659-022-00323-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Integrated assessment of the pollution and risk of heavy metals in soils near chemical industry parks along the middle Yangtze River.

    Xu, Dong / Wang, Zejun / Tan, Xiaoyu / Xu, Haohan / Zhu, Dongbo / Shen, Ruili / Ding, Kang / Li, Hongcheng / Xiang, Luojing / Yang, Zhibing

    The Science of the total environment

    2024  Volume 917, Page(s) 170431

    Abstract: Industrialization in riparian areas of critical rivers has caused significant environmental and health impacts. Taking eight industrial parks along the middle Yangtze River as examples, this study proposes a multiple-criteria approach to investigate soil ...

    Abstract Industrialization in riparian areas of critical rivers has caused significant environmental and health impacts. Taking eight industrial parks along the middle Yangtze River as examples, this study proposes a multiple-criteria approach to investigate soil heavy metal pollution and associated ecological and health risks posed by industrial activities. Aiming at seven heavy metals, the results show that nickel (Ni), cadmium (Cd), and copper (Cu) exhibited the most significant accumulation above background levels. The comprehensive findings from Pearson correlation analysis, cluster analysis, principal component analysis, and industrial investigation uncover the primary sources of Cd, arsenic (As), mercury (Hg), and lead (Pb) to be chemical processing, while Ni and chromium (Cr) are predominantly derived from mechanical and electrical equipment manufacturing. In contrast, Cu exhibits a broad range of origins across various industrial processes. Soil heavy metals can cause serious ecological and carcinogenic health risks, of which Cd and Hg contribute to >70 % of the total ecological risk, and As contributes over 80 % of the total health risk. This study highlights the importance of employing multiple mathematical and statistical models in determining and evaluating environmental hazards, and may aid in planning the environmental remediation engineering and optimizing the industry standards.
    MeSH term(s) Soil ; Cadmium/analysis ; Rivers ; Chemical Industry ; Environmental Monitoring ; Soil Pollutants/analysis ; Risk Assessment ; Metals, Heavy/analysis ; Arsenic/analysis ; Mercury/analysis ; Nickel/analysis ; China
    Chemical Substances Soil ; Cadmium (00BH33GNGH) ; Soil Pollutants ; Metals, Heavy ; Arsenic (N712M78A8G) ; Mercury (FXS1BY2PGL) ; Nickel (7OV03QG267)
    Language English
    Publishing date 2024-01-30
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2024.170431
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: PlantMetSuite: A User-Friendly Web-Based Tool for Metabolomics Analysis and Visualisation.

    Liu, Yu / Liu, Hao-Zhuo / Chen, Ding-Kang / Zeng, Hong-Yun / Chen, Yi-Li / Yao, Nan

    Plants (Basel, Switzerland)

    2023  Volume 12, Issue 15

    Abstract: The advancement of mass spectrometry technologies has revolutionised plant metabolomics research by enabling the acquisition of raw metabolomics data. However, the identification, analysis, and visualisation of these data require specialised tools. ... ...

    Abstract The advancement of mass spectrometry technologies has revolutionised plant metabolomics research by enabling the acquisition of raw metabolomics data. However, the identification, analysis, and visualisation of these data require specialised tools. Existing solutions lack a dedicated plant-specific metabolite database and pose usability challenges. To address these limitations, we developed PlantMetSuite, a web-based tool for comprehensive metabolomics analysis and visualisation. PlantMetSuite encompasses interactive bioinformatics tools and databases specifically tailored to plant metabolomics data, facilitating upstream-to-downstream analysis in metabolomics and supporting integrative multi-omics investigations. PlantMetSuite can be accessed directly through a user's browser without the need for installation or programming skills. The tool is freely available and will undergo regular updates and expansions to incorporate additional libraries and newly published metabolomics analysis methods. The tool's significance lies in empowering researchers with an accessible and customisable platform for unlocking plant metabolomics insights.
    Language English
    Publishing date 2023-08-06
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2704341-1
    ISSN 2223-7747
    ISSN 2223-7747
    DOI 10.3390/plants12152880
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: One-pot chitin pulping using recyclable superbase-based protic ionic liquid.

    Tao, Qingqing / Henriquez, Felipe Nunes / Ding, Kang / Man, Wai Lun / Lui, Matthew Y

    Carbohydrate polymers

    2023  Volume 327, Page(s) 121680

    Abstract: The application of ionic liquids and deep eutectic solvents offers a promising opportunity for a more environmentally friendly and straightforward chitin purification process from crustacean shells. Nonetheless, the insufficient recyclability of these ... ...

    Abstract The application of ionic liquids and deep eutectic solvents offers a promising opportunity for a more environmentally friendly and straightforward chitin purification process from crustacean shells. Nonetheless, the insufficient recyclability of these ionic solvents poses a challenge to the long-term sustainability of such extraction methods. Thus, there is a strong imperative to focus on employing easily recyclable ionic liquids for chitin isolation, enhancing the overall sustainability of the process. In this investigation, a direct chitin purification procedure that utilized pulping liquors consisting of the superbase-based protic ionic liquid 1,5-diazabicyclo[4.3.0]non-5-enium acetate and its precursor, acetic acid, was developed. It was demonstrated that these pulping liquors were capable of simultaneously deproteinate and demineralize shrimp shells to generate chitins with higher purity, degree of N-acetylation and crystallinity than commercially obtained chitin. More significantly, the pulping liquors can be recycled to their pure form in high quantity by simple distillation under reduced pressure, allowing the reuse of these mixtures, which give chitin of nearly identical purity.
    Language English
    Publishing date 2023-12-13
    Publishing country England
    Document type Journal Article
    ZDB-ID 1501516-6
    ISSN 1879-1344 ; 0144-8617
    ISSN (online) 1879-1344
    ISSN 0144-8617
    DOI 10.1016/j.carbpol.2023.121680
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Xianglian Pill attenuates ulcerative colitis through TLR4/MyD88/NF-κB signaling pathway

    Dai, Yuxin / Lu, Qiulu / Li, Peiyi / Zhu, Junyu / Jiang, Jiaxin / Zhao, Tong / Hu, Yue / Ding, Kang / Zhao, Min

    Journal of ethnopharmacology. 2023 Jan. 10, v. 300

    2023  

    Abstract: Xianglian Pill (XLP) is a classical Chinese medicine prescription applied for controlling ulcerative colitis (UC). Whereas, the underlying mechanism remains unclear. The present work was aimed to investigate the mechanism of XLP in dextran sulfate sodium ...

    Abstract Xianglian Pill (XLP) is a classical Chinese medicine prescription applied for controlling ulcerative colitis (UC). Whereas, the underlying mechanism remains unclear. The present work was aimed to investigate the mechanism of XLP in dextran sulfate sodium (DSS)-induced UC via the Toll Like Receptor 4 (TLR4)/Myeloid Differentiation factor 88 (MyD88)/Nuclear Factor kappa-B (NF-κB) signaling in mice. The major components of XLP were detected by high-performance liquid chromatography-diode array detection (HPLC-DAD). The ulcerative colitis model was induced by DSS in mice. 5-Amino Salicylic Acid (5-ASA) group and XLP group were intragastrically treated. Disease activity index (DAI) and colon length were monitored and hematoxylin-eosin (HE) staining was conducted. Gasdermin D (GSDMD)-N and TLR4 expressions in colon tissues were visualized by immunofluorescence. TLR4 mRNA was measured by Real Time Quantitative PCR (RT-qPCR). The expressions of NOD-like receptor thermal protein domain associated protein 3 (NLRP3), active-caspase-1, GSDMD-N, TLR4, MYD88, NF-κB, p–NF–κB, and the ubiquitination of TLR4 in colon tissues were detected by Western blot. Myeloperoxidase (MPO) enzyme activity was examined and serum inflammatory factors Interleukin (IL)-1β, IL-6, Tumor Necrosis Factor-α (TNF-α), and IL-18 were determined by Enzyme-linked Immunosorbent Assay (ELISA). TLR4⁻/⁻ mice were applied for verifying the mechanism of XLP attenuated DSS symptoms. The XLP treatment extended colon length, reduced DAI, and attenuated histopathological alteration in DSS-induced mice. XLP administration suppressed MPO activity and reduced the content of IL-1β, IL-6, TNF-α and IL-18 in serum. XLP also inhibited the expression levels of GSDMD-N, TLR4, NLRP3, active-caspase-1, MyD88, p–NF–κB/NF-κB in colon tissues of DSS-induced mice. TLR4⁻/⁻ mice proved that TLR4 was involved in XLP-mediated beneficial effect on DSS-induced ulcerative colitis. XLP might treat ulcerative colitis by regulating the TLR4/MyD88/NF-κB signaling pathway.
    Keywords Oriental traditional medicine ; Western blotting ; blood serum ; colon ; dextran sulfate ; enzyme activity ; enzyme-linked immunosorbent assay ; fluorescent antibody technique ; histopathology ; interleukin-18 ; interleukin-6 ; liquid chromatography ; models ; myeloperoxidase ; necrosis ; neoplasms ; protein domains ; quantitative polymerase chain reaction ; salicylic acid ; ubiquitination ; ulcerative colitis
    Language English
    Dates of publication 2023-0110
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 134511-4
    ISSN 1872-7573 ; 0378-8741
    ISSN (online) 1872-7573
    ISSN 0378-8741
    DOI 10.1016/j.jep.2022.115690
    Database NAL-Catalogue (AGRICOLA)

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  10. Article: The bibenzyl derivatives of Dendrobium officinale prevent UV-B irradiation induced photoaging via SIRT3

    Chen, Ding-kang / Shao, Hui-yan / Yang, Liu / Hu, Jiang-miao

    Natural products and bioprospecting. 2022 Dec., v. 12, no. 1

    2022  

    Abstract: Dendrobium officinale is a valuable medicinal herb that is widely used in traditional Chinese medicine. The chemical constituents of D. officinale have attracted much attention and a large number of compounds have been reported including many bibenzyl ... ...

    Abstract Dendrobium officinale is a valuable medicinal herb that is widely used in traditional Chinese medicine. The chemical constituents of D. officinale have attracted much attention and a large number of compounds have been reported including many bibenzyl derivatives. 13 bibenzyl derivatives from D. officinale were sent for molecular docking, surface plasmon resonance (SPR) assay and after detection of Mn-SOD and SIRT3 activities in or not in HaCaT cells, it was concluded that bibenzyl derivatives did not directly activate Mn-SOD but promoted SIRT3 proteins. In addition, HaCaT cells were irradiated with UV-B to induce an oxidative stress model in vitro to further verify the effect of bibenzyl derivatives. The results show that bibenzyl derivatives could directly bind to SIRT3, enhance the deacetylation and then activate Mn-SOD, so as to protect UV-B induced skin photoaging.
    Keywords Dendrobium officinale ; Oriental traditional medicine ; irradiation ; medicinal plants ; models ; oxidative stress ; photoaging ; surface plasmon resonance
    Language English
    Dates of publication 2022-12
    Size p. 1.
    Publishing place Springer Singapore
    Document type Article
    ISSN 2192-2195
    DOI 10.1007/s13659-022-00323-6
    Database NAL-Catalogue (AGRICOLA)

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