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基于氨基酸-N-羧基-环内酸酐开环聚合诱导自组装制备多肽基双嵌段共聚物胶束 期刊论文
大连工业大学学报, 2022, 页码: 6
作者:  李世祥;  王书唯;  袁建国;  闫俊;  胡雁鸣
收藏  |  浏览/下载：4/0  |  提交时间：2023/05/18
3D多级孔rGO/TiO2复合材料的构筑及其光催化性能研究 期刊论文
无机材料学报, 2021, 卷号: 36, 期号: 10, 页码: 1-8
作者:  李翠霞;  孙会珍;  金海泽;  史晓;  李文生
收藏  |  浏览/下载：4/0  |  提交时间：2021/10/20
改性坡缕石/聚苯乙烯阻燃复合材料制备及性能研究 期刊论文
应用化工, 2021, 卷号: 50, 期号: 04, 页码: 915-918
作者:  周国梁;  艾利君;  杨柳;  李春雷;  赵秋萍
收藏  |  浏览/下载：9/0  |  提交时间：2022/03/10
锂电解过程中杂质元素的电化学行为 期刊论文
无机盐工业, 2021, 卷号: 34, 期号: 03, 页码: 48-54+82
作者:  王世栋;  叶秀深;  李权;  火焱;  李明珍
收藏  |  浏览/下载：7/0  |  提交时间：2022/03/29
Au@PS阵列SERS基底的特性研究 期刊论文
光散射学报, 2020, 卷号: 32, 期号: 03, 页码: 217-223
作者:  裴君妍;  徐宗伟;  王钢;  张雨
收藏  |  浏览/下载：4/0  |  提交时间：2021/07/06
大麦虫幼虫肠道菌群对聚苯乙烯泡沫塑料降解 期刊论文
环境科学, 2020, 卷号: 41, 期号: 12, 页码: 5609-5616
作者:  杨莉;  刘颖;  高婕;  彭霞薇;  白志辉
收藏  |  浏览/下载：19/0  |  提交时间：2021/07/16
禾本科作物小麦能吸收和积累聚苯乙烯塑料微球 期刊论文
科学通报, 2020, 卷号: 65, 期号: 20, 页码: 2120-2127
作者:  李瑞杰;  李连祯;  张云超;  杨杰;  涂晨
收藏  |  浏览/下载：17/0  |  提交时间：2021/12/01
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：63/0  |  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.  
环氧树脂中3D氮化硼复合导热网络的构筑及性能 期刊论文
高分子材料科学与工程, 2019, 卷号: 035
作者:  冷鑫钰;  肖超;  陈璐;  郑康;  张献
收藏  |  浏览/下载：6/0  |  提交时间：2020/11/23
嵌段共聚物PS-b-PAA自组装过程的原位小角X射线散射 期刊论文
核技术, 2018, 卷号: 41, 期号: 08, 页码: 11-17
作者:  金鑫;  王建军;  李怡雯;  黄达;  杨春明
收藏  |  浏览/下载：16/0  |  提交时间：2019/12/30

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