3 research outputs found

    Liquidambarines Aā€‰āˆ’ā€‰C, three new abietane diterpenoids from <i>Liquidambar formosana</i> Hance and their anti-inflammatory activities

    No full text
    Liquidambarines Aā€‰āˆ’ā€‰C (1āˆ’3), three new abietane-type diterpenoids, together with five known compounds (4āˆ’8) were isolated from the resin of Liquidambar formosana Hance. Their structures were elucidated by the combination of spectroscopic and computational methods. We explored their anti-inflammatory potential by analyzing the protein expression of iNOS and COX-2. Compounds 1 and 3 exhibit significant anti-inflammatory activities without cytotoxicity. These experimental studies suggest these new abietane-type diterpenoids have the potential to be candidates for inflammation-associated diseases.</p

    Graphene Sandwiched by Sulfur-Confined Mesoporous Carbon Nanosheets: A Kinetically Stable Cathode for Liā€“S Batteries

    No full text
    The practical use of lithiumā€“sulfur batteries for the next-generation energy storage, especially the automobiles, was hindered by low electronic conductivity of sulfur and the resulting poor rate capabilities. Here, we report a sulfurā€“carbon composite by confining S into a graphene sandwiched in mesoporous carbon nanosheets with a two-dimensional ultrathin morphology, suitable mesopore size and large pore volume, and excellent electronic conductivity. Serving as cathode material for a Liā€“S battery, the elaborately designed S/C composite leads to ā€œkinetically stableā€ transmissions of Li ions and electrons, triggering a stable electrochemistry and a record-breaking rate performance. In this way, the S/C composite has been proved a promising cathode material for high-rate Liā€“S batteries targeted at automobile storage
    corecore