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The strategy of antibody-free biomarker analysis by in-situ synthesized molecularly imprinted polymers on movable valve paper-based device 期刊论文
BIOSENSORS & BIOELECTRONICS, 2019, 卷号: 142, 页码: UNSP 111533
作者:  Qi, J;  Li, BW;  Zhou, N;  Wang, XY;  Deng, DM;  Luo, LQ;  Chen, LX
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Paper based microfluidic device  Bioinspired molecularly imprinted technique  Electrochemical detection  Valve  Point of care diagnosis  Cancer markers  
Dispersive liquid-liquid microextraction coupled with pressure-assisted electrokinetic injection for simultaneous enrichment of seven phenolic compounds in water samples followed by determination using capillary electrophoresis 期刊论文
JOURNAL OF SEPARATION SCIENCE, 2019, 卷号: 42, 期号: 13, 页码: 2263-2271
作者:  Ma, SY;  Gao, FF;  Lu, WH;  Zhou, N;  You, HY;  Li, JH;  Chen, LX
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capillary electrophoresis  dispersive liquid-liquid microextraction  phenolic compounds  pressure-assisted electrokinetic injection  water samples  
Spherical montmorillonite-supported nano-silver as a self-sedimentary catalyst for methylene blue removal 期刊论文
APPLIED CLAY SCIENCE, 2019, 卷号: 174, 页码: 146-151
作者:  Wang, N;  Xiao, FY;  Zhang, JL;  Zhou, HS;  Qin, YW;  Pan, DW
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Silver nanoparticles  Spherical montmorillonite  Self-sedimentary  Catalyst  Methylene blue  
浅谈科研事业单位如何做好政府会计制度的衔接工作——基于中国科学院ARP系统更新 期刊论文
经济师, 2019, 期号: 01, 页码: 93-94
作者:  周雪菲;  李承玉;  刘雪飞;  雒宁宁;  李婧;  刘翠玲
收藏  |  浏览/下载：169/0  |  提交时间：2020/07/07
政府会计制度  科研事业单位  中科院  ARP系统  
食用蔬菜能吸收和积累微塑料 期刊论文
科学通报, 2019, 卷号: 64, 期号: 9, 页码: 928-934
作者:  李连祯;  周倩;  尹娜;  涂晨;  骆永明
收藏  |  浏览/下载：493/0  |  提交时间：2020/06/17
微塑料  生菜  聚苯乙烯微球  吸收  积累  健康风险  microplastics  lettuce  polystyrene microbeads  uptake  accumulation  human health risk  Microplastic (MP, 100 nm-5 mm) may present an attributable risk to ecosystem and human health, and its pollution has become a global environmental concern. Despite a wealth of information on the accumulation of MPs in aquatic species, there is no information on the uptake and accumulation of MPs by higher plants. Terrestrial edible plants are directly exposed to MPs when agricultural soil was applied with organic manure, sewage sludge as fertilizer or plastic mulching. In this paper, the uptake of two sizes of polystyrene (PS) microbeads (0.2 and 1.0 mum) and then their distribution and migration in an edible plant lettuce were firstly investigated based on laboratory experiments. We used fluorescent markers to track PS microbeads in plant tissues and found fluorescence to be a sensitive and reliable detection method. Sections from untreated control lettuce showed no autofluorescence. When roots were treated with fluorescently labeled PS microbeads, the microbeads could be identified by its fluorescence. Our main study investigated the uptake of 0.2 mum beads, as few luminescence signals were observed in lettuce roots for 1.0 mum beads in our experiment. We observed that 0.2 mum fluorescent microbeads were extracellularly trapped in the root cap mucilage (which is a highly hydrated polysaccharide) and a dark green tip (which was typical of lettuce roots exposed to label PS beads) was usually visible to the naked eye. Confocal images revealed that the PS luminescence signals were mainly located in the vascular system and on the cell walls of the cortex tissue of the roots, indicated that the beads passed through the intercellular space via the apoplastic transport system. Once inside the central cylinder, the 0.2 mum PS beads were transferred from the roots to the stems and leaves via the vascular system following the transpiration stream. We also observed that the PS beads adhered to one another and self-assembled systematically into grape-like and (chain) string-like clusters in the intercellular space of the root and stem vascular tissue of lettuce plant. In contrast to the root and stem, PS beads were dispersed in the leaf tissue. Here, for the first time we provide evidence of the adherence, uptake, accumulation, and translocation of submicrometer MPs within an edible plant. Our findings highlight the previously underappreciated human exposure pathway to MPs through the consumption of contaminated crops and emphasize the need for new management strategies to control the release of MPs waste products into the terrestrial environment. Ultimately, the potential impacts of low range sized MPs on food safety of crop plants and human health need to be urgently considered.  
植物生物防治精准化施药技术的研究进展 期刊论文
中国农业科技导报, 2019, 卷号: 21, 期号: 3, 页码: 13-21
作者:  吴晓青;  赵晓燕;  徐元章;  王加宁;  周方园;  周红姿;  张广志;  谢雪迎;  颜坤;  张新建
浏览  |  Adobe PDF(360Kb)  |  收藏  |  浏览/下载：566/243  |  提交时间：2020/07/08
生物防治  植保机械  精准化施药技术  Biological Control  Plant Protection Machinery  Precision Application Technology