检索结果-南通市图书馆

Critical Solvation Structures Arrested Active Molecules for Reversible Zn Electrochemistry

在线全文

学校读者我要写书评

暂无评论

Nano-Micro Letters 2024年第8期16卷 64-78页

作者： Junjie Zheng Bao Zhang Xin Chen Wenyu Hao Jia Yao jingying li Yi Gan Xiaofang Wang Xingtai liu Ziang Wu Youwei liu lin Lv li Tao Pei liang Xiao Ji Hao Wang Houzhao Wan Hubei Yangtze Memory Laboratories Wuhan 430205People’s Republic of China Hubei Key Laboratory of Micro‑Nanoelectronic Materials and Devices School of MicroelectronicsHubei UniversityWuhan 430062People’s Republic of China School of Physical and Mathematical Sciences Nanyang Technological UniversitySingapore 637371Singapore School of Optical and Electronic Information Huazhong University of Science and TechnologyWuhan 430074People’s Republic of China Institute of Optoelectronics Technology China Jiliang UniversityHangzhou 310018People’s Republic of China

Aqueous Zn-ion batteries(AZIBs)have attracted increasing attention in next-generation energy storage systems due to their high safety and economic.Unfortunately,the side reactions,dendrites and hydrogen evolution effects at the zinc anode interface in aqueous electrolytes seriously hinder the application of aqueous zinc-ion batteries.Here,we report a critical solvation strategy to achieve reversible zinc electrochemistry by introducing a small polar molecule acetonitrile to form a“catcher”to arrest active molecules(bound water molecules).The stable solvation structure of[Zn(H_(2)O)_(6)]^(2+)is capable of maintaining and completely inhibiting free water molecules.When[Zn(H_(2)O)_(6)]^(2+)is partially desolvated in the Helmholtz outer layer,the separated active molecules will be arrested by the“catcher”formed by the strong hydrogen bond N-H bond,ensuring the stable desolvation of Zn^(2+).The Zn||Zn symmetric battery can stably cycle for 2250 h at 1 mAh cm^(-2),Zn||V_(6)O_(13) full battery achieved a capacity retention rate of 99.2%after 10,000 cycles at 10 A g^(-1).This paper proposes a novel critical solvation strategy that paves the route for the construction of high-performance AZIBs.

关键词： Zinc-ion battery Critical solvation Helmholtz layer Arrest active molecule Reversible zinc anode

Experimental study on the CO_(2) concentration and age of air distribution inside tiny sleeping spaces

在线全文

学校读者我要写书评

暂无评论

Building Simulation 2024年第4期17卷 591-605页

作者： jingying Zhang Yanyan li Haiguo Yin linfeng liang Songmei Zu Le Gao Ying Zhang Angui li School of Building Services Science and Engineering Xi’an University of Architecture and TechnologyXi’anShaanxi710055China

In recent years,rapid urban development has led to capsule hotels,sleep pods,and other tiny sleeping spaces that adapt to people’s fast-paced lives,achieving maximum functionality with a very small footprint.However,due to the small space,human metabolic pollutant(such as CO_(2))is more likely to accumulate,and the air is not easily circulated.In this paper,a full-size experimental platform is set up with three types of ventilation modes to explore the exclusion efficiency of metabolic pollutants and the overall distribution of age of air under these ventilation modes.The conclusions showed that the mean values of metabolic pollutant exclusion rates for the different ventilation modalities varied very little across the spatial dimensions of the confined space but varied considerably in the area around the head.The double-side attached ventilation method was the most effective in removing human metabolic pollutants,especially in the head region(CN≥0.92),while the single-wall attached ventilation method had the best air exchange efficiency(η≥0.85).This suggests an inconsistent distribution of CO_(2) and age of air,which is contrary to general common sense.The conclusions of this paper can guide the design of ventilation for tiny sleeping spaces.

关键词： attached ventilation mode human metabolic pollutant indoor air quality air exchange efficiency tiny sleeping spaces

Sucrose-associated SnRK1a1-mediated phosphorylation of Opaque2 modulates endosperm filling in maize

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Molecular Plant 2024年第5期17卷 788-806页

作者： Tao Yang Yunqin Huang Longyu liao Shanshan Wang Haoyu Zhang jingying Pan Yongcai Huang Xiaoling li Di Chen Tao liu Xiaoduo Lu Yongrui Wu State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Sichuan Agricultural UniversityChengdu 611130SichuanChina National Key Laboratory of Plant Molecular Genetics CAS Center for Excellence in Molecular Plant SciencesShanghai lnstitute of Plant Physiology and EcologyChinese Academy of SciencesShanghai 200032China Institute of Molecular Breeding for Maize Qilu Normal UniversityJinanChina

During maize endosperm filling,sucrose not only serves as a source of carbon skeletons for storage-reserve synthesis but also acts as a stimulus to promote this process.However,the molecular mechanisms underlying sucrose and endosperm filling are poorly understood.In this study,we found that sucrose promotes the expression of endosperm-filling hub gene Opaque2(O2),coordinating with storage-reserve accumulation.We showed that the protein kinase SnRK1a1 can attenuate O2-mediated transactivation,but sucrose can release this suppression.Biochemical assays revealed that SnRK1a1 phosphorylates O2 at serine 41(S41),negatively affecting its protein stability and transactivation ability.We observed that mutation of SnRK1a1 results in larger seeds with increased kernel weight and storage reserves,while overexpression of SnRK1a1 causes the opposite effect.Overexpression of the native O2(O2-OE),phospho-dead(O2-SA),and phospho-mimetic(O2-SD)variants all increased 100-kernel weight.Although O2-SA seeds exhibit smaller kernel size,they have higher accumulation of starch and proteins,resulting in larger vitreous endosperm and increased test weight.O2-SD seeds display larger kernel size but unchanged levels of storage reserves and test weight.O2-OE seeds show elevated kernel dimensions and nutrient storage,like a mixture of O2-SA and O2-SD seeds.Collectively,our study discovers a novel regulatory mechanism of maize endosperm filling.Identification of S41 as a SnRK1-mediated phosphorylation site in O2 offers a potential engineering target for enhancing storage-reserve accumulation and yield in maize.

关键词： maize Opaque2 SnRK1 endosperm phosphorylation sucrose

life cycle assessment and economic analysis of HFC-134a production from natural gas compared with oil-based and coal-based production

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Chemical Science and Engineering 2022年第12期16卷 1713-1725页

作者： Suisui Zhang Gang li Boyang Bai Luyao Qiang Xiaoxun Ma jingying li School of Chemical Engineering Northwest UniversityXi’an 710069China Chemical Engineering Research Center of the Ministry of Education(MOE)for Advanced Use Technology of Shanbei Energy Xi’an 710069China Shaanxi Research Center of Engineering Technology for Clean Coal Conversion Xi’an 710069China Collaborative Innovation Center for Development of Energy and Chemical Industry in Northern Shaanxi Xi’an 710069China International Scientific and Technological Cooperation Base of the Ministry of Science and Technology(MOST)for Clean Utilization of Hydrocarbon Resources Xi’an 710069China Longdong University Qingyang 745000China

China is the largest producer and consumer of HFC-134a(1,1,1,2-tetrafluoroethane)in the world.Coal-based route is mainly adopted to produce HFC-134a,which suffers from large waste and CO_(2) emissions.Natural gas is a low-carbon and clean energy resource,and no research has been found on the environment and economy of producing HFC-134a from natural gas.In this study,CML 2001 method was used to carry out the life cycle assessment of natural gas(partial oxidation)-based and natural gas(plasma cracking)-based routes(abbreviated as gas(O)-based and gas(P)-based routes,respectively),and their environmental performances were compared with coal-based and oil-based routes.Meanwhile,considering that China is vigorously promoting the transformation of energy structure,and the application of electric heating equipment to replace fossil-based heating equipment in industrial field,which has a great impact on the environmental performance of the production processes,the authors conducted a scenario analysis.The results showed that the gas(O)-based route had the most favourable environmental benefits.However,the gas(P)-based route had the highest potential for reducing environmental burdens,and its environmental benefit was the most favourable in scenario 2050.Additionally,the economic performance of the gas(P)-based route was significantly better than that of gas(O)-based and coal-based routes.

关键词： life cycle assessment economic performance HFC-134a natural gas oil coal

Signal amplificated electrochemical immunosensor for β-lactoglobulin allergen detection in dairy products applying AuNPs/Prussian Blue/CMK-8 composite

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2024年

作者： jingying Yang lin li Xinmiao Ma Shuo Wang Mingfei Pan State Key Laboratory of Food Nutrition and Safety Tianjin University of Science and Technology Key Laboratory of Food Quality and Health of Tianjin Tianjin University of Science & Technology Tianjin Key Laboratory of Food Science and Health School of Medicine Nankai University

Herein， a novel label-free electrochemical immunosensor was fabricated via immobilizing specific anti-β-lactoglobulin （β-LG） antibodies （Abs） onto an integrated electrode of gold nanoparticles （AuNPs） / Prussian Blue （PB） / CMK-8. This immunosensor allowed for the quantitative detection of the major milk allergen β-LG. CMK-8 with excellent electrical conductivity and uniformly adjustable pore structure was modified on the glassy carbon electrode （GCE） and served as the sensitive substrate for the electro-polymerization of PB， forming the redox-active layer. AuNPs were subsequently electrochemically deposited on PB/CMK-8/GCE to improve the electrical conductivity and utilized as the connector for Abs immobilization. During β-LG detection， the Abs-modified AuNPs/PB/CMK-8/GCE exhibited a significant reduction in DPV current signal when exposed to β-LG， displaying an inverse dose-dependent relationship. The developed electrochemical immunosensor demonstrated good detection performance for β-LG， with a wider linear range of 0.01 - 100 ng mL-1and a lower detection limit of 4.72 pg mL-1. Meanwhile， the sensor exhibited remarkable repeatability， reproducibility， stability and anti-interference capabilities， which was further applied to detect β-LG in dairy food， achieving satisfactory recoveries （89.2% - 98.8%） and lower relative standard deviation （ ≤ 3.1%）. Therefore， this innovative electrochemical method for food allergens detection holds great potential application in food safety determination and evaluation.

关键词：

Plant base editing and prime editing:The current status and future perspectives

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Integrative Plant Biology 2023年第2期65卷 444-467页

作者： jingying li Chen Zhang Yubing He Shaoya li Lei Yan Yucai li Ziwei Zhu Lanqin Xia Institute of Crop Sciences(ICS) Chinese Academy of Agricultural Sciences(CAAS)Beijing 100081China National Nanfan Research Institute(Sanya) Chinese Academy of Agricultural Sciences/Hainan Yazhou Bay Seed LaboratorySanya 572024China

Precise replacement of an allele with an elite allele controlling an important agronomic trait in a predefined manner by gene editing technologies is highly desirable in crop improvement.Base editing and prime editing are two newly developed precision gene editing systems which can introduce the substitution of a single base and install the desired short indels to the target loci in the absence of double-strand breaks and donor repair templates,respectively.Since their discoveries,various strategies have been attempted to optimize both base editor(BE)and prime editor(PE)in order to improve the precise editing efficacy,specificity,and expand the targeting scopes.Here,we summarize the latest development of various BEs and PEs,as well as their applications in plants.Based on these progresses,we recommend the appropriate BEs and PEs for both basic plant research and crop improvement.Moreover,we propose the perspectives for further optimization of these two editors.We envision that both BEs and PEs will become the routine and customized precise gene editing tools for both plant biological research and crop improvement in the near future.

关键词： base editing CRISPR/Cas plants precision genome editing prime editing

Multiplex precision gene editing by a surrogate prime editor in rice

在线全文

学校读者我要写书评

暂无评论

Molecular Plant 2022年第7期15卷 1077-1080页

作者： Huiyuan li Ziwei Zhu Shaoya li jingying li Lei Yan Chen Zhang Youzhi Ma Lanqin Xia Institute of Crop Sciences(ICS) Chinese Academy of Agricultural Sciences(CAAS)Be11ing 100081China Hainan Yazhou Bay Seed Laboratory/National Nanfan Research Institute(Sanya) Chinese Academy of Agricultural SciencesSanyaHainan Province 572024China

Dear Editor,Development of a multiplex precision gene editing system is highly desirable for pyramiding beneficial alleles in crop improve-ment.Prime editing is a newly developed genome-editing tool that can precisely enable the installation of all 12 nucleotide sub-stitutions,short insertions,and deletions without exogenous DNA donor repair template and double-strand breaks(Anzalone et al.,2019).Among the prime editing systems,prime editor 3(PE3),which consists of a prime editing guide RNA(pegRNA)and an additional nicking single guide RNA(sgRNA)to nick the non-edited strand,enhances editing efficiency.

关键词： editor editing template

Artificial evolution of OsEPSPS through an improved dual cytosine and adenine base editor generated a novel allele conferring rice glyphosate tolerance

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

植物学报:英文版 2023年第9期65卷 2194-2203页

作者： Chen Zhang Xue Zhong Shaoya li Lei Yan jingying li Yubing He Yong lin Yangjun Zhang Lanqin Xia Institute of Crop Sciences(ICS) Chinese Academy of Agricultural Sciences(CAAS)Beijing 100081China CAAS/Hainan Yazhou Bay Seed Laboratory National Nanfan Research Institute(Sanya)Sanya 572024China Key Laboratory of Gene Editing Technologies(Hainan) Ministry of Agricultural and Rural AffairsSanya 572024China Beijing Dabeinong Technology Group Co. LtdBeijing 10080China

Exploiting novel endogenous glyphosate-tolerant alleles is highly desirable and has promising potential for weed control in rice breeding. Here,through fusions of different effective cytosine and adenine deaminases with nCas9-NG, we engineered an effective surrogate two-component composite base editing system, STCBE-2, with improved C-to-T and A-to-G base editing efficiency and expanded the editing window. Furthermore,we targeted a rice endogenous OsEPSPS gene for artificial evolution through STCBE-2-mediated near-saturated mutagenesis. After hygromycin and glyphosate selection, we identified a novel OsEPSPS allele with an Asp-213-Asn(D213N)mutation(OsEPSPS-D213N) in the predicted glyphosate-binding domain, which conferred rice plants reliable glyphosate tolerance and had not been reported or applied in rice breeding. Collectively, we developed a novel dual base editor which will be valuable for artificial evolution of important genes in crops. And the novel glyphosate-tolerant rice germplasm generated in this study will benefit weeds management in rice paddy fields.

关键词： artificial evolution dual cytosine and adenine base editor nCas9‐NG rice(Oryza sativa L) near‐saturated mutagenesis

life cycle assessment of HFC-134a production by calcium carbide acetylene route in China

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2022年第2期35卷 236-244页

作者： Suisui Zhang jingying li Yan Nie Luyao Qiang Boyang Bai Zhiwei Peng Xiaoxun Ma School of Chemical Engineering Northwest UniversityXi’an 710069China Chemical Engineering Research Center of the Ministry of Education(MOE)for Advanced Use Technology of Shanbei Energy Xi’an 710069China Shaanxi Research Center of Engineering Technology for Clean Coal Conversion Xi’an 710069China Collaborative Innovation Center for Development of Energy and Chemical Industry in Northern Shaanxi Xi’an 710069China International Scientific and Technological Cooperation Base of the Ministry of Science and Technology(MOST)for Clean Utilization of Hydrocarbon Resources Xi’an 710069China

HFC-134a is a widely used environment-friendly refrigerant.At present,China is the largest producer of HFC-134a in the world.The production of HFC-134a in China mainly adopts the calcium carbide acetylene route.However,the production route has high resource and energy consumption and large waste emission,and few of the studies addressed on the environmental performance of its production process.This study quantified the environmental performance of HFC-134a production by calcium carbide route via carrying out a life cycle assessment(LCA)using the CML 2001 method.And uncertainty analysis by Monte-Carlo simulation was also carried out.The results showed that electricity had the most impact on the environment,followed by steam,hydrogen fluoride and chlorine,and the impact of direct CO_(2) emissions in calcium carbide production stage on the global warming effect also could not be ignored.Therefore,the clean energy(e.g.,wind,solar,biomass,and natural gas)was used to replace coal-based electricity and coal-fired steam in this study,showing considerable environmental benefits.At the same time,the use of advanced production technologies could also improve environmental benefits,and the environmental impact of the global warming category could be reduced by 4.1%via using CO_(2) capture and purification technology.The Chinese database of HFC-134a production established in this study provides convenience for the relevant study of scholars.For the production of HFC-134a,this study helps to better identify the specific environmental hotspots and proposes useful ways to improve the environmental benefits.

关键词： HFC-134a Calcium carbide life cycle assessment Environmental impact Carbon capture