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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: 65.0, 期号: 020, 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：14/0  |  提交时间：2021/06/16
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：16/0  |  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.  
无皂乳液种子聚合法合成免疫磁珠及其光谱性能 期刊论文
光谱学与光谱分析, 2018, 卷号: 38, 期号: S1, 页码: 49-50
作者:  朱向阳;  于杰淼;  杨良嵘;  刘会洲
收藏  |  浏览/下载：20/0  |  提交时间：2019/06/17
无皂乳液聚合制备多孔聚苯乙烯纳米微球 期刊论文
应用化工, 2018, 卷号: 47, 页码: 1100-1104
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收藏  |  浏览/下载：11/0  |  提交时间：2020/01/03
聚苯乙烯微球固定化海洋脂肪酶YS2071及其性能研究 期刊论文
中国油脂, 2018, 卷号: 43, 期号: 11, 页码: 99-104
作者:  张士恒[1];  孙谧[2];  孙晶晶[3];  王伟[4];  刘均忠[5]
收藏  |  浏览/下载：6/0  |  提交时间：2020/01/02
聚苯乙烯/银纳米粒子复合微球的合成及催化性能 期刊论文
高等学校化学学报, 2017, 卷号: 第38卷 第11期, 页码: 2015-2022
作者:  申晓华，胡家文
收藏  |  浏览/下载：5/0  |  提交时间：2019/12/31
氯化银光引发聚合制备单分散聚苯乙烯微球 期刊论文
材料研究学报, 2016, 期号: 11, 页码: 868-874
杨莹; 赵岩; 颜雨坤; 张劲松
收藏  |  浏览/下载：28/0  |  提交时间：2016/12/28
静电自组装制备交联聚苯乙烯纳米微球/石墨烯杂化填料（PS@rGO）及其在丁苯橡胶中的应用研究 期刊论文
《高分子学报》, 2016, 卷号: 0, 页码: 1724-1734
作者:  陈耀燃;  林勇;  陈义中;  张颖;  刘岚
收藏  |  浏览/下载：5/0  |  提交时间：2019/04/24
聚苯乙烯中空微球的合成与性能研究 期刊论文
《广东化工》, 2016, 卷号: 43, 页码: 314-315
作者:  杨东东
收藏  |  浏览/下载：1/0  |  提交时间：2019/04/24

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