Xi ZHOU

Sep 18, 2024 | pubs.rsc.org | Yanchun Lin |Xi ZHOU |Yixuan Zheng |Bingran Chen

Visible-light-promoted C3-H alkoxycarbonylation of quinoxalin-2(1H)-ones or coumarins with alkyloxalyl chlorides Herein, we describe a green and efficient photoredox catalytic C3-H alkoxycarbonylation between quinoxalin-2(1H)-ones or coumarins and readily available alkyloxalyl chlorides under ambient conditions. A series of quinoxaline-3-carbonyl and coumarin-3-carbonyl compounds are prepared through the radical addition of the in situ-generated alkoxycarbonyl radicals.

Sep 12, 2024 | opg.optica.org | Xi ZHOU |Naiwei Huang |Hong liu |Bingjun Liang

The aging of glass insulator materials in substations leads to a decrease in the overall insulating performance of insulators, which affects the safety of power system operation. In order to effectively and accurately detect the aging condition of the glass insulator surface in a substation, a technical method based on laser transmission spectroscopy is proposed to characterize the aging state of glass insulators.

Sep 9, 2024 | onlinelibrary.wiley.com | Sen Luo |Xi ZHOU |Meijing Wu |Gongxin Wang

1 Introduction Voltage-gated sodium (Nav) channel Nav1.7 is preferentially expressed in the peripheral nervous system and is essential for action potential (AP) generation in sensory neurons due to its role in the initial signal amplification, possibly serving as a threshold channel for APs.[1] Clinical and genetic evidence shows that Nav1.7 plays an important role in the perception of pain signals.[1, 2] Accordingly, Nav1.7 is considered as an analgesic target, and pharmacological inhibition...

Aug 15, 2024 | mdpi.com | Fang Zhang |Dengyu Wang |Xi ZHOU |Fan Ye

1. IntroductionIn recent years, cities around the world have been hit by natural and man-made disasters such as fires, earthquakes, and public health problems. The strength of these shocks is increasing at the regional, national, and global levels. These repercussions have posed numerous needs for a set of urban resilience strategies to face unforeseen issues in the future [].

Jul 28, 2024 | pubs.rsc.org | Jing Li |Jing Wang |Xi ZHOU |Xiao-Qian Wu

Heterodimeric Diketopiperazine Alkaloids from Penicillium expansum MA147 and Their Cytotoxicity Four previously undescribed heterodimeric diketopiperazine alkaloids, expansines A–D, were identified from the solid rice medium fermented by Penicillium expansum MA147, along with one new resorcylic acid derivative and five known compounds.