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Toward a rapid and convenient nanoplastic quantification method in laboratory-scale study based on fluorescence intensity

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Frontiers of Environmental Science & Engineering 2024年第5期18卷 117-126页

作者： ruiqi yan Sen Lin Qian Ding Lei Zhang Xia Yu Wentao Zhao Qian Sui State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process School of Resources and Environmental EngineeringEast China University of Science and TechnologyShanghai200237China State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and EngineeringTongji UniversityShanghai200092China Shanghai Institute of Pollution Control and Ecological Security Shanghai200092China

The thorough investigation of nanoplastics(NPs)in aqueous environments requires efficient and expeditious quantitative analytical methods that are sensitive to environmentally relevant NP concentrations and convenient to *** analysis-based quantitative methods have been acknowledged as effective and rapid approaches for quantifying NP concentrations in laboratory-scale ***,we compared three commonly used optical response indicators,namely fluorescence intensity(FI),ultraviolet absorbance,and turbidity,to assess their performance in quantifying ***,orthogonal experiments were conducted to evaluate the influence of various water quality parameters on the preferred indicator-based quantification *** results revealed that FI exhibits the highest correlation coefficient(>0.99)with NP ***,the limit of quantification(LOQ)for various types of NPs is exceptionally low,ranging from 0.0089 to 0.0584 mg/L in ultrapure water,well below environmentally relevant *** variations in water quality parameters such as pH,salinity,suspended solids(SS),and humic acid,a robust relationship between detectable FI and NP concentration was ***,an increased matrix,especially SS in water samples,results in an enhanced LOQ for ***,the quantitative method remains applicable in real water bodies,especially in drinking water,with NP LOQ as low as 0.0157–0.0711 mg/*** exceeds the previously reported detectable concentration for 100 nm NPs at 40µg/mL using surface-enhanced Raman *** study confirms the potential of FI as a reliable indicator for the rapid quantification of NPs in aqueous environments,offering substantial advantages in terms of both convenience and cost-effectiveness.

关键词： Nanoplastic quantification Fluorescence intensity Drinking water Limit of quantification(LOQ) Matrix effects

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New Insights into Microplastic Contamination in Different Types of Leachates: Abundances, Characteristics, and Potential Sources

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Engineering 2024年第6期37卷 62-68页

作者： Lei Zhang Wentao Zhao Liang Zhang Zhenxiao Cai ruiqi yan Xia Yu Damià Barceló Qian Sui State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process School of Resources and Environmental EngineeringEast China University of Science and TechnologyShanghai 200237China State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and EngineeringTongji UniversityShanghai 200092China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China PerkinElmer Inc.Shanghai 201203China Maihai Environmental Protection Technology Co. Ltd.SuzhouJiangsu 215000China Department of Environmental Chemistry Institute of Environmental Assessment and Water ResearchSpanish Council for Scientific Research(IDAEA-CSIC)Barcelona 08034Spain

Municipal solid waste(MSW)is an important destination for abandoned *** the waste disposal process,large plastic debris is broken down into microplastics(MPs)and released into the ***,current research only focuses on landfill leachates,and the occurrence of MPs in other leachates has not been ***,herein,the abundance and characteristics of MPs in three types of leachates,namely,landfill leachate,residual waste leachate,and household food waste leachate,were studied,all leachates were collected from the largest waste disposal center in *** results showed that the average MP abundances in the different types of leachates ranged from(129±54)to(1288±184)MP particles per liter(particlesL1)and the household food waste leachate exhibited the highest MP abundance(p80%)of small MPs(20–100 lm)in landfill leachates compared to other *** the best of our knowledge,this is the first study discussing the sources of MPs in different leachates,which is important for MP pollution control during MSW disposal.

关键词： Microplastics Landfill leachate Residual waste leachate Household food waste leachate Source

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Design,preparation,and characterization of a novel ZnO/CuO/Al energetic diode with dual functionality:Logic and destruction

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Defence Technology（防务技术） 2024年第4期34卷 57-68页

作者： Jialu yang Jiaheng Hu Yinghua Ye Jianbing Xu yan Hu ruiqi Shen School of Chemistry and Chemical Engineering Nanjing University of Science and TechnologyNanjing 210094China Micro-Nano Energetic Devices Key Laboratory of MIIT Nanjing 210094China Institute of Space Propulsion Nanjing University of Science and TechnologyNanjing 210094China

Self-destructing chips have promising applications for securing *** paper proposes a new concept of energetic diodes for the first time,which can be used for self-destructive chips.A simple two-step electrochemical deposition method is used to prepare ZnO/CuO/Al energetic diode,in which N-type ZnO and P-type CuO are constricted to a PN *** paper comprehensively discusses the material properties,morphology,semiconductor characteristics,and exploding performances of the energetic *** results show that the energetic diode has typical rectification with a turn-on voltage of about 1.78 V and a reverse leakage current of about 3×10^(-4)*** a constant voltage of 70 V loads to the energetic diode in the forward direction for about 0.14 s or 55 V loads in the reverse direction for about 0.17 s,the loaded power can excite the energetic diode exploding and the current rises to about100 *** to the unique performance of the energetic diode,it has a double function of rectification and *** energetic diode can be used as a logic element in the normal chip to complete the regular operation,and it can release energy to destroy the chip accurately.

关键词： Energetic diode ZnO—CuO—Al thermite ZnO/CuO PN junction Electrical explosion performance Self-destructing chips

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Changes in the Water Area of Chahannaoer and Its Influencing Factors from 1986 to 2020

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Meteorological and Environmental Research 2022年第1期13卷 73-78,83页

作者： Nan ZHAO yan HUANG ruiqi yan Xiaoli GUO Dan ZHANG Fujiang REN Ulanqab Meteorological Bureau Ulanqab 012000China

Based on the long-term Landsat remote sensing data,the dynamic changes in the water area of Chahannaoer from 1986 to 2020 were analyzed,and the influencing factors of lake changes were analyzed combined with meteorological data and human *** results show that in the past 35 years,the water area of Chahannaoer tended to reduce obviously on the whole;annual average evaporation and annual average relative humidity gradually decreased,and annual average temperature,annual average precipitation,and annual average wind speed *** and relative humidity were significantly positively correlated with water area;temperature and average wind speed were negatively correlated with water area,but the correlation was not significant;there was a weak correlation between evaporation and water *** and relative humidity were the main climatic factors affecting the change of water area in Chahannaoer.

关键词： Water area Influencing factors Chahannaoer

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企业档案参与品牌形象塑造模型构建与实证研究

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档案与建设 2023年第11期 39-42页

作者：闫瑞颀潘未梅天津师范大学管理学院天津300387

企业档案对品牌形象的塑造具有重要作用。文章基于现有品牌形象测评模型,结合企业档案特性,构建了包括产品、企业、人性化三个维度的企业档案参与品牌形象塑造模型。通过选取可口可乐、丰田汽车、国家电网、青岛啤酒四家企业档案部门于... 详细信息

企业档案对品牌形象的塑造具有重要作用。文章基于现有品牌形象测评模型,结合企业档案特性,构建了包括产品、企业、人性化三个维度的企业档案参与品牌形象塑造模型。通过选取可口可乐、丰田汽车、国家电网、青岛啤酒四家企业档案部门于新媒体平台发布的内容进行编码,对该模型进行实证,探析企业档案参与品牌形象塑造的方向与方式。在此基础上提出相关建议,以期助力企业档案更好地服务于企业品牌形象塑造。

关键词：企业档案品牌形象模型案例

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Baicalein suppresses Coxsackievirus B3 replication by inhibiting caspase-1 and viral protease 2A

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Virologica Sinica 2024年第4期39卷 685-693页

作者： yanyan Dong Enze Shao Siwei Li ruiqi Wang Dan Wang Lixin Wang Hong yang Yingxia He Tian Luan yang Chen Yao Wang Lexun Lin yan Wang Zhaohua Zhong Wenran Zhao Department of Cell Biology Harbin Medical UniversityHarbin 150081China Department of Microbiology Harbin Medical UniversityHarbin 150081China

Myocarditis is an inflammatory disease of the cardiac muscle and one of the primary causes of dilated *** B coxsackievirus(CVB)is one of the leading causative pathogens of viral myocarditis,which primarily affects children and young *** to the lack of vaccines,the development of antiviral medicines is crucial to controlling CVB infection and the progression of *** this study,we investigated the antiviral effect of baicalein,a flavonoid extracted from Scutellaria *** results demonstrated that baicalein treatment significantly reduced cytopathic effect and increased cell viability in CVB3-infected *** addition,significant reductions in viral protein 3D,viral RNA,and viral particles were observed in CVB3-infected cells treated with *** found that baicalein exerted its inhibitory effect in the early stages of CVB3 *** also suppressed viral replication in the myocardium and effectively alleviated myocarditis induced by CVB3 *** study revealed that baicalein exerts its antiviral effect by inhibiting the activity of caspase-1 and viral protease *** together,our findings demonstrate that baicalein has antiviral activity against CVB3 infection and may serve as a potential therapeutic option for the myocarditis caused by enterovirus infection.

关键词： Baicalein Coxsackievirus B(CVB) Myocarditis 2A protease Caspase-1

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The Epidemiological Characteristics of Mpox Cases-China,2023

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China CDC weekly 2024年第26期6卷 619-623页

作者： ruiqi Ren Chao Li Wenqing Bai Yali Wang Dan Li Fan Ding Niu yan Qi Wang Nijuan Xiang Lianmei Jin Lei Zhou Wenling Wang Fan Lyu Peilong Li Dapeng Zhang yan Li Quanyi Wang Qun Li Guoqing Shi National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases Chinese Center for Disease Control and PreventionBeijingChina Chinese Center for Disease Control and Prevention BeijingChina National Institute for Viral Disease Control and Prevention Chinese Center for Disease Control and PreventionBeijingChina National Center for AIDS/STD Control and Prevention Chinese Center for Disease Control and PreventionBeijingChina Guangdong Provincial Center for Disease Control and Prevention Guangzhou CityGuangdong ProvinceChina Beijing Municipal Center for Disease Prevention and Control BeijingChina

Summary What is already known about this topic?Since May 2022,a global outbreak of mpox has emerged in more than 100 non-endemic *** of December 2023,over 90,000 cases had been *** outbreak has predominantly affected men who have sex with men(MSM),with sexual contact identified as the principal mode of *** is added by this report?Since June 2023,China has faced an occurrence of mpox,predominantly affecting the MSM *** 90%of those affected reported engaging in homosexual behavior within 21 days prior to symptom onset,a trend that aligns with the global outbreak *** prompt identification of cases,diligent tracing of close contacts,and the implementation of appropriate management strategies have successfully mitigated the spread of mpox virus in *** are the implications for public health practice?We propose that mpox is transmitted locally within *** from our experiences in controlling the virus spread,it is crucial to investigate and formulate effective surveillance and educational ***,we must encourage high-risk populations to promptly seek medical care upon the onset of symptoms.

关键词： prompt Drawing spread

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旧工业建筑再生利用评价体系研究

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工业建筑 2013年第10期43卷 1-4,10页

作者：田卫李慧民陈旭闫瑞琦西安建筑科技大学土木工程学院西安710055 中国城乡建设发展有限公司北京100191

随着旧工业建筑再生利用项目的大量开发,项目急需科学有效的评价体系为其开展提供决策参考。从可持续发展的角度出发,参考国内外多种评价体系构建方法,通过对全国96个项目进行调研分析,从经济、社会与环境三维角度建立了适用于可持续性... 详细信息

随着旧工业建筑再生利用项目的大量开发,项目急需科学有效的评价体系为其开展提供决策参考。从可持续发展的角度出发,参考国内外多种评价体系构建方法,通过对全国96个项目进行调研分析,从经济、社会与环境三维角度建立了适用于可持续性和全过程评价的旧工业建筑再生利用评价体系。该体系具有多评价方法共存的特点,是以可拓优度评价为主,其他评价为辅,贯穿项目始终的一种全过程性评价体系。

关键词：旧工业建筑再生利用评价体系可持续发展

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云南大理祥云古城有机更新策略探究

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城市建筑 2020年第19期17卷 164-167页

作者：严瑞琪翟辉昆明理工大学建筑城市规划学院云南昆明650500

近年来,为谋求发展,古城区的保护与更新成为祥云古城主要任务之一。祥云古城受到中原文化与南昭文化双重作用,呈现出云南少数民族聚居地区少见的“方印”汉城格局。作为滇西交通咽喉,2018年祥云借力棚改政策将古城片区确定为2018年重点... 详细信息

近年来,为谋求发展,古城区的保护与更新成为祥云古城主要任务之一。祥云古城受到中原文化与南昭文化双重作用,呈现出云南少数民族聚居地区少见的“方印”汉城格局。作为滇西交通咽喉,2018年祥云借力棚改政策将古城片区确定为2018年重点棚改区域。在此背景下,针对祥云古城面临的旧城改造问题,文章以“有机更新”作为切入点,对古城进行正确的价值定位,结合古城的历史文化资源发掘,从物质空间层面入手,对古城内存在的各层面问题提出针对性的更新策略。

关键词：祥云古城现状评析有机更新拼贴策略研究

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大杂院的微社会形态研究——以北京南锣鼓巷福祥胡同5号院为例

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城市建筑 2020年第22期17卷 107-110页

作者：严瑞琪翟辉昆明理工大学建筑城市规划学院云南昆明650500

北京南锣鼓巷片区是老北京胡同文化的重要载体,自中华人民共和国成立至今,社会背景的巨大转变使得北京传统四合院的社会性质逐步改变,形成了"微社会"形态。当前,从社会性因素上看,政策主导下的历史传统住区房屋产权多次调整,人群复杂性... 详细信息

北京南锣鼓巷片区是老北京胡同文化的重要载体,自中华人民共和国成立至今,社会背景的巨大转变使得北京传统四合院的社会性质逐步改变,形成了"微社会"形态。当前,从社会性因素上看,政策主导下的历史传统住区房屋产权多次调整,人群复杂性激增,社会矛盾增加。同时,在空间演进的物质表现上,北京大部分四合院肌理已被破坏,居民自发地私搭乱建成为普遍现象。针对"微社会"现象的研究,文章以福祥胡同5号院为例,进行了院落实地调研,试图从大杂院的社会关系和物质空间演进两方面入手解读其原因,基于"共生"概念,提出建筑、人群、文化三者的共生策略。

关键词：微社会福祥胡同5号院物质性社会性共生策略

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