中文版 | English

在结果中检索

YIC-IR

浏览/检索结果: 共7条，第1-7条 帮助

限定条件                        
已选(0)清除 条数/页：   排序方式：
基于动力学响应的聚合物膜电位型传感器的构建及在环境分析中的应用 学位论文
工学博士, 中科院烟台海岸带研究所: 中国科学院大学, 2019
作者:  刘淑文
Adobe PDF(7005Kb)  |  收藏  |  浏览/下载：744/3  |  提交时间：2020/01/14
离子选择性电极，动力学，电位型传感器，计时电位分析，环境分析  
分子印迹聚合物在磺胺类抗生素残留检测中的 样品前处理应用研究进展 期刊论文
海岸科学, 2019, 卷号: 6, 期号: 2, 页码: 8-21
作者:  李金花;  王艺晓;  王莉燕;  陈令新
Adobe PDF(1121Kb)  |  收藏  |  浏览/下载：285/46  |  提交时间：2021/11/12
磺胺类抗生素  分子印迹聚合物  样品前处理  固相萃取  印迹技术  印迹策略  
钙、铜和铅离子选择性微电极电位检测体系的构建及在环境分析中的应用 学位论文
, 北京: 中国科学院研究生院, 2019
作者:  赵光涛
Adobe PDF(4701Kb)  |  收藏  |  浏览/下载：508/2  |  提交时间：2021/01/13
离子选择性微电极，单细胞分析，电位分析，孔隙水，重金属  
基于印迹聚合物的微流控量子点纸基芯片检测环境中的镉、铅离子 期刊论文
分析试验室, 2019, 卷号: 38, 期号: 01, 页码: 7-12
作者:  王冠;  齐骥;  戚安金;  周俊瑞;  李博伟;  陈令新
浏览  |  Adobe PDF(417Kb)  |  收藏  |  浏览/下载：587/254  |  提交时间：2020/07/08
碲化镉量子点  纸芯片  离子印迹聚合物  镉和铅离子  
粗糙化金纳米棒SERS探针用于生物成像研究 期刊论文
烟台大学学报(自然科学与工程版), 2019, 卷号: 32, 期号: 01, 页码: 25-30
作者:  梅荣超;  殷颖超;  王运庆
浏览  |  Adobe PDF(2593Kb)  |  收藏  |  浏览/下载：487/236  |  提交时间：2020/07/08
表面增强拉曼散射(SERS)  光学探针  金纳米棒  巯基-聚乙二醇  生物成像  
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：526/0  |  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.  
分子印迹材料的先进制备技术与策略 期刊论文
科学通报, 2019, 卷号: 64, 期号: 13, 页码: 1352-1367
作者:  王晓艳;  李金花;  陈令新
浏览  |  Adobe PDF(7399Kb)  |  收藏  |  浏览/下载：689/266  |  提交时间：2020/07/08
分子印迹聚合物  印迹技术  印迹策略  样品前处理  传感  刺激响应印迹  Molecularly Imprinted Polymers  Imprinting Technology  Imprinting Strategy  Sample Pretreatment  Sensor  Stimuliresponsive Imprinting