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Vertical Sns2 Nanosheets Anchored on Self-Supporting Ysz Nanofibers for No2 Gas Sensor

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SSRN 2024年

作者： Yang, Changjun Gao, Mingyu Zhang, Teng Liu, Zhuo Li, Yingru Yi, Jinqiao Song, Xinjian Tan, Jianfeng Zhang, Yuan College of Intelligent Systems Science and Engineering Hubei Minzu University Enshi445000 China Hubei Key Laboratory of Biological Resources Protection and Utilization School of Chemical and Environmental Engineering Hubei Minzu University Enshi445000 China Hubei University for Nationalities China

The escalating issue of air pollution underscores the importance of developing high-performance NO2 gas sensors. This study reports a real time NO2 gas sensor made from composite nanofibers featuring vertically anchored SnS2 nanosheets on self-supporting YSZ nanofibers designed with biomimetic branch-leaf structure. The fabricated sensor demonstrates a notable response of 9.15 towards 5 ppm NO2 at 120 °C, and features rapid response/recovery times of 295/450 s. The improved performance of the gas sensor can be ascribed to the efficient gas transmission and diffusion, high surface area and abundant edge sites, facilitated by the unique structural configuration. This study may lay the groundwork for further development of composite nanofibers based gas sensors. © 2024, The Authors. All rights reserved.

关键词： Nanofibers

The complete chloroplast genome sequence ofNekemias cantoniensis(Hook. et Arn.) Planch 1873 (Vitaceae)

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Mitochondrial DNA Part B 2022年第8期7卷 1536-1539页

作者： Yongjian Luo Ru Wang Qing Li Jun Liu Zhijun Deng a Hubei Key Laboratory of Biologic Resources Protection and Utilization (Hubei Minzu University) Enshi PR Chinab The Plant Germplasm Resources Laboratory School of Forestry and Horticulture Hubei Minzu University Enshi PR Chinac Guangdong Key Laboratory for Crop Germplasm Resources Preservation and Utilization Agro-biological Gene Research Center Guangdong Academy of Agricultural Sciences Guangzhou Chinad Research Center for Germplasm Engineering of Characteristic Plant Resources in Enshi Prefecture (Hubei Minzu University) Enshi PR China a Hubei Key Laboratory of Biologic Resources Protection and Utilization (Hubei Minzu University) Enshi PR Chinab The Plant Germplasm Resources Laboratory School of Forestry and Horticulture Hubei Minzu University Enshi PR Chinad Research Center for Germplasm Engineering of Characteristic Plant Resources in Enshi Prefecture (Hubei Minzu University) Enshi PR China c Guangdong Key Laboratory for Crop Germplasm Resources Preservation and Utilization Agro-biological Gene Research Center Guangdong Academy of Agricultural Sciences Guangzhou China

Nekemias cantoniensis(Hook. et Arn.) Planch 1873 is a woody vine species native to South and Southwest China that is rich in flavonoids and also displays excellent pharmacological activities. The purpose of this study was to characterize the complete chloroplast (cp) genome ofN. cantoniensisusing Illumina pair-end sequencing data. In summary, the complete cp genome ofN. cantoniensisexhibits a quadripartite structure with a length of 162,655 base pairs, including a large single-copy (LSC) region of 89,341 base pairs, a small single-copy (SSC) region of 19,076 base pairs, and two inverted repeats (IRs) regions of 27,119 base pairs. The overall GC content of the genome is 37.41%, while the corresponding values for the LSC, SSC, and IR regions are 34.75%, 32.89%, and 43.02%, respectively. The genome contains 137 genes, of which 87 are protein coding, 36 are tRNA coding, and eight are rRNA coding. Maximum-likelihood phylogenetic analyses revealed thatN. cantoniensiswas clustered withN. grossedentata.

关键词： Chloroplast genome small single-copy phylogenetic relationship maximum likelihood

Enlarged fins of Tibetan catfish provide new evidence of adaptation to high plateau

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Science China(Life Sciences) 2023年第7期66卷 1554-1568页

作者： Liandong Yang Ning Sun Honghui Zeng Ying Wang Wenjun Chen Zufa Ding Yang Liu Jing Wang Minghui Meng Yanjun Shen Jingliang Kang Xiuhui Ma Wenqi Lv Juan Chen Axel Meyer Baocheng Guo Shunping He State Key Laboratory of Freshwater Ecology and Biotechnology Institute of HydrobiologyChinese Academy of SciencesWuhan430072China Key Laboratory of Zoological Systematics and Evolution Institute of ZoologyChinese Academy of SciencesBeijing100101China Academy of Plateau Science and Sustainability Qinghai Normal UniversityXining810016China Hubei Engineering Research Center for Protection and Utilization of Special Biological Resources in the Hanjiang River Basin School of Life SciencesJianghan UniversityWuhan430056China State Key Laboratory of Genetic Resources and Evolution Kunming Institute of ZoologyChinese Academy of SciencesKunming650223China University of Chinese Academy of Sciences Beijing100049China Department of Biology University of Konstanz78457KonstanzGermany Center for Excellence in Animal Evolution and Genetics Chinese Academy of SciencesKunming650223China

The uplift of the Tibetan Plateau significantly altered the geomorphology and climate of the Euroasia by creating large mountains and *** are more likely to be affected relative to other organisms,as they are largely restricted to river *** with the rapidly flowing water in the Tibetan Plateau,a group of catfish has evolved greatly enlarged pectoral fins with more numbers of fin-rays to form an adhesive ***,the genetic basis of these adaptations in Tibetan catfishes remains *** this study,we performed comparative genomic analyses based on the chromosome-level genome of Glyptosternum maculatum in family Sisoridae and detected some proteins with conspicuously high evolutionary rates in particular in genes involved in skeleton development,energy metabolism,and hypoxia *** found that the hoxd12a gene evolved faster and a loss-of-function assay of hoxd12a supports a potential role for this gene in shaping the enlarged fins of these Tibetan *** genes with amino acid replacements and signatures of positive selection included proteins involved in low temperature(TRMU)and hypoxia(VHL)*** assays reveal that the *** TRMU allele generates more mitochondrial ATP than the ancestral allele found in low-altitude *** assays of VHL alleles suggest that the *** allele has lower transactivation activity than the low-altitude *** findings provide a window into the genomic underpinnings of physiological adaptations that permit *** to survive in the harsh environment of the Tibetan Himalayas that mirror those that are convergently found in other vertebrates such as humans.

关键词： Glyptosternum maculatum enlarged fins adaptation Tibetan Plateau

Comparative Study on Vanadium(V) Adsorption Performance of Supported Ionic Liquid Synthesized by Physical Impregnation and Chemical Grafting

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SSRN 2024年

作者： Yang, Hu Bao, Shenxu Zhang, Yimin Chen, Bo Zhou, Jiahao Xin, Chunfu Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources Ministry of Education Wuhan University of Technology Wuhan430070 China School of Resources and Environmental Engineering Wuhan University of Technology Wuhan430070 China Hubei Key Laboratory of Mineral Resources Processing and Environment Wuhan430070 China State Environmental Protection Key Laboratory of Mineral Metallurgical Resources Utilization and Pollution Control Wuhan University of Science and Technology Wuhan430081 China

This study loaded ionic liquids (ILs) onto chloromethylated polystyrene resins using physical impregnation and chemical grafting. The resulting ionic liquid-loaded resins were characterized using SEM-EDS, FTIR, and NMR spectral analyses, confirming the successful preparation of both the physical impregnation resin (PIR) and the chemical grafting resin (CGR). The study compared the influencing conditions, cyclicity, selectivity, and adsorption mechanism of PIR and CGR on adsorption vanadium(V). Under optimum adsorption conditions, CGR exhibited significantly higher adsorption capacity (261mg/g) than PIR (27mg/g). Regarding adsorption selectivity, the adsorption capacity of both resins for V(V) is much more than that for impurity ions (Al and Fe). However, the CGR had much more significant separation coefficients for Fe and Al (65.3 and 45.4) compared to the PIR (6.3 and 10.6). Furthermore, the CGR exhibited a cycling capacity 1.5 times greater than the PIR, maintaining an adsorption capacity of over 98% of the initial value within 12 cycles. Based on the adsorption mechanism, the two loaded resins conformed to the Langmuir adsorption isothermal model and the pseudo-second-order kinetic model. The indicates the adsorption processes were monolayer chemisorption. The FTIR and NMR analysis results indicate that ILs in CGR are loaded onto the resin surface through chemical bonding. In PIR, the ILs are uniformly adsorbed on the resin through weak and unstable electrostatic force. In this study, the adsorption performance, selectivity, and adsorption stability of the CGR were significantly superior to those of the PIR. © 2024, The Authors. All rights reserved.

关键词： Impregnation

The complete chloroplast genome and phylogenetic analysis ofCardamine circaeoidesHook. f. et Thoms., 1861 (Brassicaceae)

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Mitochondrial DNA Part B 2022年第11期7卷 1964-1967页

作者： Ru Wang Zhijun Deng Yongjian Luo a Hubei Key Laboratory of Biologic Resources Protection and Utilization Hubei Minzu University Enshi P. R. Chinab Research Center for Germplasm Engineering of Characteristic Plant Resources in Enshi Prefecture Hubei Minzu University Enshi P. R. China a Hubei Key Laboratory of Biologic Resources Protection and Utilization Hubei Minzu University Enshi P. R. Chinab Research Center for Germplasm Engineering of Characteristic Plant Resources in Enshi Prefecture Hubei Minzu University Enshi P. R. Chinac Center for Crop Germplasm Resources Institute of Crop Sciences Chinese Academy of Agricultural Sciences Beijing P. R. China

A species ofCardamine circaeoidesHook. f. et Thoms., 1861, which belongs to the Cardamine family (Brassicaceae), is an endemic species of the Wuling Mountains in Hunan and hubei Provinces of China. Since there are many morphologically related species ofC. circaeoides, the chloroplast (cp) genome characteristics ofC. circaeoideswere analyzed in order to explore the phylogenetic relationship between it and the closely related species. A cp genome totaling 154,838 base pairs exhibited a typical quadripartite structure with a pair of IRs (inverted repeats; 26,493 base pairs) separated by a small single-copy region of 17,938 base pairs and a large single-copy region of 83,914 base pairs. A total of 130 genes were found in the cp genome, including 85 protein-coding genes, 37 tRNA genes, and 8 rRNA genes. There were 36.21%, 33.96%, 29.09%, and 42.35% GC content in the entire cp genome, LSC region, SSC region, and IR region, respectively. According to phylogenetic analysis,C. circaeoidesis evolutionarily closer toCardamine hupingshanensis.

关键词： Cardamine circaeoides chloroplast genome Brassicaceae sequence alignment

Simultaneous Detection of Four Specific Dnas Fragments Based on Two-Dimensional Bimetallic Mof Nanosheets

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SSRN 2022年

作者： Wang, Peng Wang, Xiaohong Li, Wenheng Leng, Zhongming Lu, ZiJing Zhai, Kun Xiang, Dongshan Key Laboratory of Biologic Resources Protection and Utilization of Hubei Province Hubei Minzu University Enshi445000 China School of Chemical and Environmental Engineering Hubei Minzu University Enshi445000 China School of Resources and Environmental Engineering Wuhan University of Technology Wuhan430072 China

We synthesized a bimetallic organic framework (Co/Fe(1:1) MOF) nanosheet with good fluorescence quenching effect using two metal ions Co2+, Fe3+ and terephthalic acid, a new method of one-step simultaneous detection of four specific DNA fragments based on bimetallic organic framework nanosheets were developed. It was demonstrated by an oligonucleotide sequence of wild-type HBV and three reverse transcription oligonucleotide sequences of RNA fragment of Hepatitis A virus (HAV), Hepatitis C virus (HCV) and Human immunodeficiency virus (HIV) as a model system. In this analytical method, four different dyes (FAM, TAMRA, Cy-5, and Cy-7) were labeled on the complementary sequences of four different target DNAs as fluorescent probes. In the absence of target DNAs(T-DNAs), four fluorescent probes were adsorbed on the Co/Fe (1:1) MOF by π-π stacking, hydrogen bonding, van der Waals forces and the dyes were close to Co/Fe (1:1) MOF, their fluorescence were quenched by MOF nanosheets. In the presence of T-DNAs, four fluorescent probes hybridize with the corresponding T-DNAs to form double-stranded DNAs, causing the fluorescent probes were moved away from the surface of the Co/Fe (1:1) MOF and the fluorescence signals were recovered. Under the optimal conditions, the fluorescence intensities of four dyes all exhibited good linear dependence on corresponding concentration of T-DNAs. The detection limits targets of HAV, HBV, HCV and HIV were 0.032 nmol/L, 0.037nmol/L, 0.53 nmol/L and 0.18 nmol/L (3σ, n=9), respectively. The analytical method has low detection limit, good selectivity and high sensitivity, and can be used to detect T-DNAs in complex matrices. © 2022, The Authors. All rights reserved.

关键词： Fluorescence spectroscopy

φ-pH diagrams and kinetics of V_(2)O_(3) prepared by solution-phase hydrogen reduction

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Transactions of Nonferrous Metals Society of China 2022年第4期32卷 1290-1300页

作者： Yi-bo HU Yi-min ZHANG Nan-nan XUE Peng-cheng HU Liu-hong ZHANG College of Resources and Environmental Engineering Wuhan University of Science and TechnologyWuhan 430081China State Environmental Protection Key Laboratory of Mineral Metallurgical Resources Utilization and Pollution Control Wuhan University of Science and TechnologyWuhan 430081China Hubei Collaborative Innovation Center for High Efficient Utilization of Vanadium Resources Wuhan 430081China Hubei Provincial Engineering Technology Research Center of High Efficient Cleaning Utilization for Shale Vanadium Resource Wuhan University of Science and TechnologyWuhan 430081China

Solution-phase hydrogen reduction(Sp HR)was introduced into V_(2)O_(3)preparation to overcome disadvantages of traditional reduction roasting,which include a long process,high energy consumption,and generation of *** research mainly focuses onφ-pH diagrams and kinetics of *** analysis ofφ-pH diagrams for the V-H_(2)O system demonstrates that V_(2)O_(3)preparation via Sp HR requires a high temperature,a high vanadium concentration,and sufficient hydrogen in acidic *** analyses show that the activation energy of V_(2)O_(3)preparation via SpHR is 38.0679 k J/mol,indicating that the reduction is controlled by a combination of interfacial chemical reaction and internal *** of H;partial pressure(slope K=0.05246)on the reaction rate is not as significant as the vanadium concentration(K=1.58872).V_(2)O_(3)crystals with a purity of 99.59%and a vanadium precipitation rate of 99.83%were obtained under the following conditions:pH=5-6,c(V_(2)O_(3))=0.5 mol/L,p(H;)=4 MPa,m(PdCl;)=10 mg,T=250℃,and t=2.5 h.

关键词： V2O3 solution-phase hydrogen reduction φ-pH diagram kinetics

Role of digestive protease enzymes and related genes in host plant adaptation of a polyphagous pest,Spodoptera frugiperda

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Insect Science 2021年第3期28卷 611-626页

作者： Muhammad Hafeez Xiao-Wei Li Jin-Ming Zhang Zhi-Jun Zhang Jun Huang Li-Kun Wang Muhammad Musa Khan Sakhawat Shah G.Mandela Fernandez-Grandon Yao-Bin Lu State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products Institute of Plant Protection and MicrobiologyZhejiang Academy of Agricultural SciencesHangzhou310021China Key Laboratory of Bio-Pesticide Innovation and Application Guangzhou510642China Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory College of Plant Science and TechnologyHuazhong Agricultural UniversityWuhanHubei430070China Natural Resources Institute University of GreenwichChathamMaritimeKentME44TBUK

The evolutionary success of phytophagous insects depends on their ability toefficiently exploit plants as a source of energy for *** insects largelydepend on the efficiency,flexibility,and diversity of their digestive physiology and sophistication of their detoxification system to use chemically diverse host plants as *** fall armyworm,Spodoptera frugiperda(***),is a polyphagous pest ofmany commercially important *** elucidate the ability of this insect pest to adaptto host plant mechanisms,we evaluated the impact of primary(corn)and alternate(rice)host plants after 1l generations on gut digestive enzymatic activity and expression profiles of related *** indicated that the total protease and classspecific trypsinand chymotrypsinlike protease activity of *** significantly differed among hostplant *** classspecifiq protease profiles greatly differed in *** upon larval exposure to different treatments with inhibitors compared with treatments without ***,the single and cumulative effects of the enzymespecific inhibitors TLCK,TPCK,and E64 significantly increased larval mortality and reduced larval growth/mass across different plant ***,the quantitativereverse transcription polymerase chain reaction results revealed increased transcription oftwo trypsin(SfTry3,SfTry7)and one chymotrypsin gene(Sfchym9),which indicatedthat they have roles in host plant *** of these genes resulted in significantly reduced mRNA expression levels of the trypsin *** was related to theincreased mortality observed in treatments compared with the dsRED *** resultindicates possible roles of *** gut digestive enzymes and related genes in hostplant adaptation.

关键词： digestive enzymes gene expression host plant adaptation RNA interference Spodoptera frugiperda

Study on the Influential Mechanism of Catechin on the Volatility of Aroma Compounds in Ethanol-Water Solution by Instrumental Analysis and Theoretical Calculation

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SSRN 2025年

作者： Shi, Jie Xu, Yin Li, Guoxiang Huang, Mingquan Wu, Jihong Liu, Hongqin Zhao, Dongrui Li, Hehe Zhang, Jinglin Key Laboratory of Brewing Molecular Engineering of China Light Industry Beijing Technology and Business University Beijing100048 China Jingpai Co. Ltd. Hubei Huangshi435000 China School of Chemical and Environmental Engineering Key Laboratory of Biological Resources Protection and Utilization of Hubei Province Hubei Minzu University Enshi445000 China Beijing Laboratory for Food Quality and Safety Beijing Technology and Business University Beijing100048 China

In this work, the influential mechanism of catechin on the volatilities of aroma compounds (ACs) in ethanol-water solution was investigated using solid-phase microextraction and gas chromatography mass spectrometry (SPME-GC/MS), combined with thermodynamic analysis, and theoretical calculations. The volatilities of a series of esters, pyrazines, and phenolic compounds with similar structures in 46% ethanol solution at different concentrations of catechin were detected by SPME-GC/MS. The volatilities of ACs with less methyl numbers were suppressed by catechin. As the increase of methyls in the molecular, their volatilities tended to be promoted. As the increase of concentration of catechin, the volatilities of ACs were gradually promoted. Thermodynamic analysis showed that the hydrophobic interaction was the main interaction between ACs and catechin. Theoretical calculations showed that the catechin affected the volatilities of ACs by changing the micro ethanol concentration (MEC) around the aroma molecular in ethanol-water solution. © 2025, The Authors. All rights reserved.

关键词： Gas chromatography