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Structural designs and mechanism insights into electrocatalytic oxidation of 5-hydroxymethylfurfural

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Journal of Energy Chemistry 2025年第1期 792-814页

作者： Jing Lei Huijie Zhang Jian Yang Jia Ran Jiqiang ning Haiyan wang Yong Hu Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Department of Chemistry Zhejiang Normal University Jinhua Advanced Research Institute Department of Optical Science and Engineering Fudan University College of Chemistry and Materials Engineering Zhejiang A&F University

Biomass conversion offers an efficient approach to alleviate the energy and environmental *** oxidation of 5-hydroxymethylfurfural(HMF) has attracted tremendous attention in the latest few years for the mild synthesis conditions and high conversion efficiency to obtain 2,5-furan dicarboxylic acid(FDCA), but there still remain problems such as limited yield, short cycle life,and ambiguous reaction mechanism. Despite many reviews highlighting a variety of electrocatalysts for electrochemical oxidation of HMF, a detailed discussion of the structural modulation of catalyst and the underlying catalytic mechanism is still lacking. We herein provide a comprehensive summary of the recent development of electrochemical oxidation of HMF to FDCA, particularly focusing on the mechanism studies as well as the advanced strategies developed to regulate the structure and optimize the performance of the electrocatalysts, including heterointerface construction, defect engineering,single-atom engineering, and in situ reconstruction. Experimental characterization techniques and theoretical calculation methods for mechanism and active site studies are elaborated, and challenges and future directions of electrochemical oxidation of HMF are also prospected. This review will provide guidance for designing advanced catalysts and deepening the understanding of the reaction mechanism beneath electrochemical oxidation of HMF to FDCA.

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Co-digestion of food waste and hydrothermal liquid digestate:Promotion effect of self-generated hydrochars

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Environmental Science and Ecotechnology 2023年第3期15卷 77-87页

作者： Mingshuai Shao Chao Zhang xue wang ning wang Qindong Chen Guangyu Cui Qiyong Xu Shenzhen Engineering Laboratory for Eco-efficient Recycled Materials School of Environment and EnergyPeking University Shenzhen Graduate SchoolNanshan DistrictShenzhen518055PR China

Hydrothermal treatment(HTT)can efficiently valorize the digestate after anaerobic ***,the disposal of the HTT liquid is *** paper proposes a method to recover energy through the anaerobic co-digestion of food waste and HTT liquid *** effect of HTT liquid recirculation on anaerobic co-digestion performance was *** study focused on the self-generated hydrochars that remained in the HTT supernatant after *** effect of the self-generated hydrochars on the methane(CH_(4))yield and microbial communities were *** adding HTT liquids treated at 140 and 180C,the maximum CH4 production increased to 309.36 and 331.61 mL per g COD,*** HTT liquid exhibited a pH buffering effect and kept a favorable pH for the anaerobic *** addition,the self-generated hydrochars with higher carbon content and large oxygen-containing functional groups remained in HTT *** increased the electron transferring rate of the anaerobic *** increased relative abundance of Methanosarcina,Syntrophomonadaceae,and Synergistota was observed with adding HTT *** results of the principal component analysis indicate that the electron transferring rate constant had positive correlationships with the relative abundance of Methanosarcina,Syntrophomonadaceae,and *** study can provide a good reference for the disposal of the HTT liquid and a novel insight regarding the mechanism for the anaerobic co-digestion.

关键词： Anaerobic co-digestate Electron transfer Food waste Hydrothermal treatment Microbial community Self-generated hydrochars

The Mechanisms of Brassinosteroids＇ Action： From Signal Transduction to Plant Development

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Molecular Plant 2011年第4期4卷 588-600页

作者： Cang-Jin Yang Chi Zhang Yang-ning Lu Jia-Qi Jin xue-Lu wang State Key Laboratory of Genetic Engineering and Institute of Plant Biology School of Life Sciences Fudan University Shanghai 200433 People's Republic of China

Brassinosteroids play diverse roles in plant growth and development. Plants deficient in brassinosteroid （BR） biosynthesis or defective in signal transduction show many abnormal developmental phenotypes, indicating the importance of both BR biosynthesis and the signaling pathway in regulating these biological processes. Recently, using genetics, proteomics, genomics, cell biology, and many other approaches, more components involved in the BR signaling pathway were identified. Furthermore, the physiological, cellular, and molecular mechanisms by which BRs regulate various aspects of plant development, are being discovered. These include root development, anther and pollen development and formation, stem elongation, vasculature differentiation, and cellulose biosynthesis, suggesting that the biological functions of BRs are far beyond promoting cell elongation, This review will focus on the up-to-date progresses about regulatory mechanisms of the BR signaling pathway and the physiological and molecular mechanisms whereby BRs regulate plant growth and development.

关键词： Arabidopsis brassinosteroid cross-talk phosphorylation plant development signaling pathway stresses.

Neuronal effects of SP600125 pretreatment in a rat model of cerebral ischemia/reperfusion injury Inhibited down-regulation of DNA repair protein

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Neural Regeneration Research 2009年第12期4卷 1055-1061页

作者： ning wang Rongliang xue Fengzhen Yao Jiaxuan He Jianrui Lu Pengbo Zhang Gang Wu Department of Anesthesiology Second Affiliated Hospital Xi'an Jiaotong University Xi'an 710004 Shaanxi province China Department of Anesthesiology Jiangsu Province Hospital of Traditional Chinese Medicine Nanjing 210002 Jiangsu province China

BACKGROUND： Recent studies have shown that the selective inhibitor of c-Jun N-terminal kinases （JNKs） signaling pathway, SP600125, exhibits neuronal protective effects in a rat model of brain ischemia/reperfusion. OBJECTIVE： To determine the mechanisms of neuroprotective effects of SP600125 in a rat model of brain ischemia/reperfusion, and determine the role of the JNK signaling pathway in SP600125-induced effects. DESIGN, TIME AND SETTING： A randomized, controlled, animal experiment was performed at the Animal Experiment Center, Medical School of Xi＇an Jiaotong University from June 2007 to September 2008. MATERIALS： SP600125 was provided by Biosource, USA; rabbit anti-phospho-JNK （Thr183/Tyr185） polyclonal antibody from Cell Signaling Technology, USA; rabbit anti-X-ray repair cross-complementing protein 1 （XRCC1） and anti-Ku70 polyclonal antibodies from Santa Cruz Biotechnology, USA; and TUNEL kit from Beijing Huamei Biology, China. METHODS： A total of 108 male, 4-month-old, Sprague Dawley rats were randomly assigned to three groups, with 36 rats per group. The sham operation group and ischemia/reperfusion group （I/R group） were intracerebroventricularly injected with 10 μL 1% DMSO. The SP600125-treated group （pre-SP group） was given 10 μL SP600125 （3 μg/μL）. Thirty minutes later, brain ischemia was induced in the I/R and pre-SP groups using the four-vessel occlusion method. Specifically, whole brain ischemia was induced for 6 minutes, and the clips were released to restore carotid artery blood flow. Rats from each group were observed at 2, 6, 12, 24, 48, and 72 hours, with 6 rats for each time point. The sham operation group was treated with the same surgical exposure procedures, with exception of occlusion of the carotid artery. MAIN OUTCOME MEASURES： Hematoxylin-eosin staining was used to observe neuronal survival in the hippocampal CA1 region, TUNEL was used to detect apoptosis in the hippocampal CA1 region, and immunohistochemistry was used to detect expressio

关键词： ischemia/reperfusion injury apoptosis c-Jun N-terminal kinases DNA repair protein X-ray repair cross-complementing protein 1 Ku70

Dynamic threshold for SPWVD parameter estimation based on Otsu algorithm

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Journal of Systems Engineering and Electronics 2013年第6期24卷 919-924页

作者： ning Ma Jianxin wang School of Electronic Engineering and Optoelectronic Technology Nanjing University of Science and Technology

Time-frequency-based methods are proven to be effective for parameter estimation of linear frequency modulation （LFM） signals. The smoothed pseudo Winger-Ville distribution （SPWVD） is used for the parameter estimation of multi-LFM signals, and a method of the SPWVD binarization by a dynamic threshold based on the Otsu algorithm is proposed. The proposed method is effective in the demand for the estimation of different parameters and the unknown signal-to-noise ratio （SNR） circumstance. The performance of this method is confirmed by numerical simulation.

关键词： parameter estimation smoothed pseudo Winger-Ville distribution (SPWVD) dynamic threshold Otsu algorithm

Existence,uniqueness,and global attractivity of positive solutions and MLE of the parameters to the Logistic equation with random perturbation

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Science China Mathematics 2007年第7期50卷 977-986页

作者： Da-qing JIANG Bao-xue ZHANG De-hui wang ning-zhong SHI School of Mathematics and Statistics Northeast Normal UniversityChangchun 130024China School of Mathematics Jilin UniversityChangchun 130012China

This paper discusses a randomized Logistic equation $\dot N(t) = (r + \alpha \dot B(t))N(t)[1 - \frac{{N(t)}}{K}]$ with an initial value N(0) = N 0, and N 0 is a random variable satisfying 0 < N 0 < K. The existence, uniqueness and global attractivity of positive solutions and maximum likelihood estimate (MLE) of the parameters of the equation are studied.

关键词： randomized Logistic equation existence uniqueness global attractivity MLE of the parameter 34F05 34E10 62F10

Sila-annulated terrylene diimides for balanced ambipolar transporting

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Chinese Chemical Letters 2023年第8期34卷 311-314页

作者： Kai Chen ning xue Guogang Liu Yujian Liu Jiajing Feng Wei Jiang Zhaohui wang Key Laboratory for Advanced Materials and Institute of Fine Chemicals School of Chemistry&Molecular EngineeringEast China University of Science and TechnologyShanghai 200237China School of Science China University of Geosciences(Beijing)Beijing 100083China Key Laboratory of Organic Optoelectronics and Molecular Engineering Department of ChemistryTsinghua UniversityBeijing 100084China

The key building blocks,tetrachlorinated terrylene diimides and the targeted sila-annulated terrylene diimides(Si-TDIs and 2Si-TDIs)were synthesized for the first ***-crystal analysis verified the almost planar molecular configurations of both Si-TDIs and *** exhibited intriguing optical properties including red-shifted absorption and near-infrared emission properties with excellent fluorescence quantum yields,as well as precisely controlled HOMO/LUMO energy levels by *** single-crystal organic field-effect transistors based on 2Si-TDI 5a featuring long and branched alkyl chains demonstrated well-balanced ambipolar transporting properties with electron/hole mobilities of 0.10/0.18 cm2 V^(−1)s^(−1).

关键词： Terrylene diimides Si-heteroannulation Ambipolar transporting Single-crystal OFETs Organic electronics

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巢湖重要河口湿地贝类中汞的生物富集研究

生物学杂志 2017年第1期34卷 44-47,93页

作者：余骏李玉成张学胜王宁崔鲁楠吴义国安徽大学资源与环境工程学院合肥230601

以巢湖主要河口湿地中的无齿蚌(Anodonta)为研究对象,分析汞在贝类体内的生物积累和空间分布情况。结果表明:研究区的沉积物均受到不同程度的汞污染,其中以十五里河和南淝河河口污染最为严重;无齿蚌对汞和甲基汞具有明显的生物富集,其... 详细信息

以巢湖主要河口湿地中的无齿蚌(Anodonta)为研究对象,分析汞在贝类体内的生物积累和空间分布情况。结果表明:研究区的沉积物均受到不同程度的汞污染,其中以十五里河和南淝河河口污染最为严重;无齿蚌对汞和甲基汞具有明显的生物富集,其与对应沉积物中汞和甲基汞含量均呈显著正相关,且生物体内的汞污染分布趋势与沉积物中汞污染水平反映较为一致,表明无齿蚌可作为河口湿地汞污染监测的指示生物。无齿蚌体内不同组织对汞的积累具有明显选择性,表现为外套膜中汞浓度最高,内脏次之,腮和肌肉较低。贝类评价结果表明,巢湖各重要河口湿地无齿蚌中汞和甲基汞含量均符合我国相关限量标准,其食用的健康风险较低,可划入生态保育区进行重点保护和利用。

关键词：河口湿地无齿蚌汞甲基汞生物富集

Effects of LPA on the development of sheep in vitro fertilized embryos and attempt to establish sheep embryonic stem cells

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Journal of Integrative Agriculture 2023年第4期22卷 1142-1158页

作者： ZHANG xue-min HUANG Xiang-hua wang Jing XING Ying LIU Fang XIANG Jin-zhu wang Han-ning YUE Yong-li LI xue-ling State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock School of Life SciencesInner Mongolia UniversityHohhot 010020P.R.China Department of Urology Inner Mongolia Autonomous Region People’s HospitalHohhot 010017P.R.China

Lysophosphatidic acid(LPA)is a small molecule glycerophospholipid,which regulates multiple downstream signalling pathways through G-protein-coupled receptors to achieve numerous functions on oocyte maturation and embryo *** this study,sheep in vitro fertilized embryos were applied to investigate the effects of LPA on early embryos development and embryonic stem cell *** first,the maturation medium containing estrus female sheep serum and synthetic oviduct fluid(SOF)were optimized for sheep IVF,and then the effects of LPA were *** 0.1 to 10μmol L^(–1),LPA had no significant effect on the cleavage rate(P>0.05),but the maturation rate and blastocyst rate increased dependently with LPA concentration(P<0.05),and the blastocyst morphology was *** the LPA concentration was 15μmol L^(–1),the maturation rate,cleavage rate and blastocyst rate decreased significantly(P<0.05),and the blastocyst exhibited abnormal morphology and could not develop into highquality ***,the exogenous LPA increases the expression of LPAR2,LPAR4,TE-related gene CDX-2and pluripotency-related gene OCT-4 in sheep early IVF embryos with the raise of LPA concentration from 0.1 to 10μmol L^(–1).The expression of LPAR2,LPAR4,CDX-2 and OCT-4 from the LPA-0.1μmol L^(–1)to LPA-10μmol L^(–1)groups in early embryos were extremely significant(P<0.05),while the expression of these genes significantly decreased in 15μmol L^(–1)LPA-treated embryos compared with LPA-10μmol L^(–1)group(P<0.05).The inner cell mass in 15μmol L^(–1)LPA-treated embryos was also disturbed,and the blastocysts formation was ***,the sheep IVF blastocysts were applied to establish embryonic stem *** results showed that LPA made the blastocyst inoculated cells grow towards TSC-like *** enhanced the fluorescence intensity and mRNA abundance of OCT-4 and CDX-2 as the concentration increased from 0 to 10μmol L^(–1),while 15μmol L^(–1)LPA decreased OCT-4 and CDX

关键词： sheep in vitro fertilization LPA LPARs embryonic stem cells