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Electrocatalytic cleavage of a lignin β-O-4 model compound and coupling with nitrogen-containing aromatics using Prussian blue analogue-derived nickel–cobalt spinel

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Journal of Energy Chemistry 2025年第1期100卷 628-636页

作者： Yi Qi Xueying Chen Bowen Liu Xuliang lin Xueqing Qiu Yanlin qin Guangdong Provincial Key Laboratory of Plant Resources Biorefinery School of Chemical Engineering and Light Industry Guangdong University of Technology Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center Guangdong Basic Research Center of Excellence for Ecological Security and Green Development Guangdong University of Technology

Electrochemical conversion of lignin for the production of high-value heterocyclic aromatic compounds has great *** demonstrate the targeted synthesis and cation modulation of NiCo2O4spinel nanoboxes,synthesized via cation exchange and calcination *** catalysts exhibit excellent efficacy in the electrocatalytic conversion of lignin model compounds,specifically 2-phenoxy-1-phenylethanol,into nitrogen-containing aromatics,achieving high conversion rates and *** catalysts were synthesized via a cation exchange and calcination oxidation process,using Prussian blue nanocubes as *** porous architecture and polymetallic composition of the NiCo2O4spinel demonstrated superior performance in electrocatalytic oxidative coupling,achieving a 99.2 wt%conversion rate of the 2-phenoxy-1-phenylethanol with selectivities of 37.5 wt%for quinoline derivatives and 31.5 wt%for *** innovations include the development of a sustainable one-pot synthesis method for quinoline derivatives,the elucidation of a multistage reaction pathway involving CAO bond cleavage,hydroxyaldol condensation,and CAN bond formation,and a deeper mechanistic understanding derived from DFT *** work establishes a new strategy for lignin valorization,offering a sustainable route to produce high-value nitrogen-containing aromatics from renewable biomass under mild conditions,without the need for additional reagents.

关键词： Spinel Biomass valorization Electrocatalysis Lignin oxidation Coupling

Floral organogenesis of Tsoongiodendron odorum Chun (Magnoliaceae)

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Floral organogenesis of Tsoongiodendron odorum Chun (Magnoli...

Non-coding RNAs in acute ischemic stroke:from brain to periphery

全国系统与进化植物学研讨会暨第九届系统与进化植物学青年研讨会

作者： FU lin zeng qin-Wen XU Feng-Xia South China Botanical Garden, Leyiju Guangzhou 510650, China

Magnoliaceae has been considered to be one of the earliest flowering plant. This family is a well-defined and horticulturally important basal angiosperm family of about 230 species of trees and shrubs characterized by large flowers with numerous tepals and fertile parts inserted separately on an elongated axis. More than 80% of species of Magnoliaceae are distributed in subtropical and tropical regions of eastern Asia;the remainder occurs in America, indicating a relictual tropical disjunction.

关键词： Magnoliaceae Tsoongiodendron odorum Chun floral ontogeny

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Neural Regeneration Research 2025年第1期20卷 116-129页

作者： Shuo Li Zhaohan Xu Shiyao Zhang Huiling Sun Xiaodan qin lin Zhu Teng Jiang Junshan Zhou Fuling Yan Qiwen Deng Department of Neurology Nanjing First HospitalNanjing Medical UniversityNanjingJiangsu ProvinceChina Department of Neurology Zhongda HospitalSchool of MedicineSoutheast UniversityNanjingJiangsu ProvinceChina General Clinical Research Center Nanjing First HospitalNanjing Medical UniversityNanjingJiangsu ProvinceChina

Acute ischemic stroke is a clinical emergency and a condition with high morbidity,mortality,and *** predictive,diagnostic,and prognostic biomarkers and effective therapeutic targets for acute ischemic stroke remain *** innovations in high-throughput gene sequencing analysis,many aberrantly expressed non-coding RNAs(ncRNAs)in the brain and peripheral blood after acute ischemic stroke have been found in clinical samples and experimental *** expressed ncRNAs in the post-stroke brain were demonstrated to play vital roles in pathological processes,leading to neuroprotection or deterioration,thus ncRNAs can serve as therapeutic targets in acute ischemic ***,distinctly expressed ncRNAs in the peripheral blood can be used as biomarkers for acute ischemic stroke prediction,diagnosis,and *** particular,ncRNAs in peripheral immune cells were recently shown to be involved in the peripheral and brain immune response after acute ischemic *** this review,we consolidate the latest progress of research into the roles of ncRNAs(microRNAs,long ncRNAs,and circular RNAs)in the pathological processes of acute ischemic stroke–induced brain damage,as well as the potential of these ncRNAs to act as biomarkers for acute ischemic stroke prediction,diagnosis,and *** from this review will provide novel ideas for the clinical application of ncRNAs in acute ischemic stroke.

关键词： acute ischemic stroke apoptosis blood–brain barrier damage circular RNAs excitatory toxicity long non-coding RNAs microRNAs neuroinflammation non-coding RNAs oxidative stress

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猪场水源水及管网水肠球菌耐药特性差异研究

江西农业学报 2017年第8期29卷 99-104页

作者：林云琴曾中华陈如登福建省福清市畜牧兽医中心福建福清350100 福建省漳州市动物疫病预防控制中心福建漳州363000 福建省农产品质量安全检验检测中心福建福州350000

从福州地区9个猪场不同来源的饮用水中分离获得42株肠球菌。采用微量肉汤稀释法对这些分离菌进行药物敏感性实验,测定了它们对6种抗生素的最小抑菌浓度(MIC)。结果表明:这些分离菌对土霉素、红霉素、氯霉素、环丙沙星、氨苄西林和万古... 详细信息

从福州地区9个猪场不同来源的饮用水中分离获得42株肠球菌。采用微量肉汤稀释法对这些分离菌进行药物敏感性实验,测定了它们对6种抗生素的最小抑菌浓度(MIC)。结果表明:这些分离菌对土霉素、红霉素、氯霉素、环丙沙星、氨苄西林和万古霉素的耐药率分别为80.95%、66.67%、35.71%、19.05%、16.67%、14.29%;水池进水口及蓄水池分离菌对土霉素和红霉素的耐药率略低于饮水器饮用水分离菌的,但对氯霉素、环丙沙星、氨苄西林的耐药率均显著低于饮水器分离菌的;保育舍饮水器分离菌对所有抗生素都有更高的耐药率;所分离的肠球菌共有11种耐药谱,发现有11株分离菌对4~5种抗生素耐药,其中5株来自保育舍饮水器;水池进水口及蓄水池分离菌的多重耐药率均低于饮水器分离菌的,以保育舍饮水器分离菌的多重耐药率最高。

关键词：猪场饮用水肠球菌抗生素耐药性饮水管网

Metastable seed-crystals: epitaxial growth of branched-array organic heterostructure nanowires

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Science China Chemistry 2025年

作者： Jin Feng Zhen-Yu Geng Ting-Yao Song Ying-Xin Ma Chuan-zeng Wang Wei Zhang Hong-Tao lin Jin Zhou Shu-Ping Zhuo Shu-Hai Chen Xue-Dong Wang School of Chemistry and Chemical Engineering Shandong University of Technology Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & DevicesSoochow University College of Chemistry and Chemical Engineering Hunan Normal University

Tunable light–matter interactions are exhibited by organic low-dimensional crystals, making these crystals a promising platform for organic photonics. However, the precise synthesis of organic low-dimensional crystals remains challenging due to the stochastic nature of molecular nucleation processes. Herein, the directed nucleation process is driven by the introduction of metastable seed-crystals as the trunk, which ultimately leads to branched-array organic heterostructures. The successful formation of organic heterostructures with high-density branched arrays is attributed to the highest attachment energy (Eatt（023）=-104.25 kcal mol-1) of the exposed （023） crystal plane during the seed-crystal growth route. Significantly, these as-prepared heterostructures inherently have an ultralow lattice mismatch ratio η of 0.7%between trunk and branch, which contributes to the multi-channel photon transportation. Therefore, this work provides valuable insights into a versatile synthetic strategy for accessing low-dimensional heterostructures for integrated optoelectronics.

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cDNA cloning of a novel lectin that induce cell apoptosis from Artocarpus hypargyreus

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Chinese Journal of Natural Medicines 2021年第2期19卷 81-89页

作者： LUO Yu zeng lin-Jie LIU Xiao-qin LI Lu zeng Qi-Yan Department of Biochemistry and Molecular Biology Guangxi Medical UniversityNanning 530021China Department of Orthopaedics Chinese and Western Orthopaedics Hospital of GuigangGuigang 537100China

We isolated a novel lectin(AHL)from Artocarpus hypargyreus Hance and showed its immunomodulatory *** this study,the amino acid sequence of AHL was determined by cDNA *** cDNA(875bp)contains a 456-bp open reading frame(ORF),which encodes a protein with 151 amino *** is a new member of jacalin-related lectin family(JRLs),which share high sequence similarities to KM+and Morniga M,and contain the conserved carbohydrate binding *** antitumor activity of AHL was also explored using Jurkat T cell *** exhibits a strong binding affinity to cell membrane,which can be effectively inhibited by methyl-α-*** inhibits cell proliferation in a time-and dose-dependent manner through apoptosis,evidenced by morphological changes,phosphatidylserine externalization,poly ADP-ribose polymerase(PARP)cleavage,Bad and Bax up-regulation,and caspase-3 *** further showed that the activation of ERK and p38 signaling pathways is involved for the pro-apoptotic effect of AHL.

关键词： Lectin cDNA cloning Apoptosis Antitumor drug Artocarpus hypargyreus

Ensemble Bayesian method for parameter distribution inference:application to reactor physics

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Nuclear Science and Techniques 2023年第12期34卷 216-228页

作者： Jia‑qin zeng Hai‑Xiang Zhang He‑lin Gong Ying‑Ting Luo School of Mathematics Sichuan UniversityChengdu 610065China Paris Elite Institute of Technology Shanghai Jiao Tong UniversityShanghai 200240China

The estimation of model parameters is an important subject in *** this area of work,the prevailing approach is to estimate or calculate these as deterministic *** this study,we consider the model parameters from the perspective of random variables and describe the general form of the parameter distribution inference *** this framework,we propose an ensemble Bayesian method by introducing Bayesian inference and the Markov chain Monte Carlo(MCMC)*** on a finite cylindrical reactor and a 2D IAEA benchmark problem show that the proposed method converges quickly and can estimate parameters effectively,even for several correlated parameters *** experiments include cases of engineering software calls,demonstrating that the method can be applied to engineering,such as nuclear reactor engineering.

关键词： Model parameters Bayesian inference Frequency distribution Ensemble Bayesian method KL divergence

Efficient conversion of lignin to alkylphenols over highly stable inverse spinel MnFe_(2)O_(4) catalysts

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Frontiers of Chemical Science and Engineering 2023年第8期17卷 1085-1095页

作者： Yi Qi Xuezhi zeng lingyingzi Xiong Xuliang lin Bowen Liu Yanlin qin Guangdong Provincial Key Laboratory of Plant Resources Biorefinery School of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhou 510006China

The aromatic properties of lignin make it a promising source of valuable chemicals and *** efficient and stable catalysts to effectively convert lignin into high-value chemicals is *** this work,MnFe_(2)O_(4) spinel catalysts with oxygen-rich vacancies and porous distribution were synthesized by a simple solvothermal process and used to catalyze the depolymerization of lignin in an isopropanol solvent *** specific surface area was 110.5 m^(2)∙g^(–1),which substantially increased the active sites for lignin depolymerization compared to *** conversion of lignin reached 94%,and the selectivity of alkylphenols exceeded 90% after 5 h at 250℃.Underpinned by characterizations,products,and density functional theory analysis,the results showed that the catalytic performance of MnFe_(2)O_(4) was attributed to the composition of Mn and Fe with strong Mn–O–Fe *** addition,the cycling experiments and characterization showed that the depolymerized lignin on MnFe_(2)O_(4) has excellent cycling ***,our work provides valuable insights into the mechanism of lignin catalytic depolymerization and paves the way for the industrial-scale application of this process.

关键词： lignin depolymerization spinel catalysts hydrogenation

Numerical Simulation and Sensitivity Analysis of Parameters for Multistand Roll Forming of Channel Section With Outer Edge

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Journal of Iron and Steel Research International 2009年第1期16卷 32-37页

作者： zeng Guo LAI Xin-min YU Zhong-qi lin Zhong-qin School of Mechanical Engineering Shanghai Jiao Tong University Shanghai 200240 China State Key Laboratory of Mechanical System and Vibration Shanghai 200240 China

Cold roll forming is a high production but complex metal forming process under the conditions of coupled effects with multi-factor. A new booting finite element method （FEM） model using the updated Lagrangian （IAL） method for multistand roll forming process is developed and validated. Compared with most of the literatures related to roll forming simulation, the new model can take the roll rotation into account and is well suited for simulating multistand roll forming. Based on the model, the process of a channel section with outer edge formed with twelve passes is simulated and the sensitivity analysis of parameters is conducted with orthogonal design combined FEM model. It is found that the multistand roll forming process can be efficiently analyzed by the new booting model, and sensitivity analysis shows that the yield strength plays an important role in controlling the quality of the products.

关键词： cold roll forming multistand roll forming sensitivity FEM model