Publications by authors named "Linyu Zheng"

Natural products play a pivotal role in the advancement of state-of-the-art pharmaceuticals. To augment their therapeutic efficacy, structural modifications of these compounds are routinely performed. In this study, we introduce an efficient and environmentally benign electrochemical oxidative method for site-selective direct C-H activation of tanshinone IIA under metal-free, oxidant-free, and base-free conditions.

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An efficient and environmentally friendly electrochemical oxidative selective halogenation of pyrazolones has been developed under conditions free of metals, external oxidants, and external supporting electrolytes. The reaction demonstrates good functional group tolerance and maintains high efficiency in large-scale synthesis, yielding moderate to excellent yields of the desired 4-halopyrazolones. This method provides a green and convenient route for the direct installation of a halogen moiety into bioactive pyrazolone derivatives, which can be utilized in a myriad of applications.

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Radix Cudramiae, the dried root of Cudrania cochinchinensis (Lour.) Kudo et Masam., is a valuable ethnomedicine with outstanding antihepatitis activity.

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Pyrite exhibits considerable potential as an adsorbent in wastewater treatment. However, few pyrite adsorbents are directly obtained from natural pyrite, as most are composite materials that require a complex preparation process. To develop a pyrite-based adsorbent with a simple preparation process, pyrite was processed by calcination at 400, 600, and 800 °C for 4 h and ball-milled into a fine powder.

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(Hendel) is a notorious agricultural pest worldwide, and its prevention and control have been widely studied. Bacteria in the midgut of help improve host insecticide resistance and environmental adaption, regulate growth and development, and affect male mating selection, among other functions. Insects have an effective gut defense system that maintains self-immunity and the balance among microorganisms in the gut, in addition to stabilizing the diversity among the gut symbiotic bacteria.

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Tephritidae fruit flies (Diptera: Tephritidae) are regarded as important damage-causing species due to their ability to cause great economic losses in fruit and vegetable crops. and are two sibling species of the subgenus of that are distributed across a limited area of China, but have caused serious impacts. They share similar morphological characteristics.

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A pot experiment was conducted to evaluate the feasibility of using tree seedlings for the phytoremediation of lead/zinc (Pb/Zn) mine tailings. Seedlings of three Quercus spp. (Q.

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