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放牧强度对高寒草甸优势植物叶片解剖结构的影响 期刊论文
草地学报, 2023, 卷号: 31, 期号: 10, 页码: 3018-3025
作者:  肖晴;  林轸荣;  姜风岩;  石丽娜;  赵洪鑫
收藏  |  浏览/下载：0/0  |  提交时间：2023/12/01
Probing the Influence of the Substrate Hole Shape on the Interaction between Helium Ions and Suspended Monolayer Graphene with Raman Spectroscopy 期刊论文
JOURNAL OF PHYSICAL CHEMISTRY C, 2021, 卷号: 125, 期号: 3, 页码: 2202-2211
作者:  He, Shixuan;  Xie, Wanyi;  Zhang, Yongna;  Fang, Shaoxi;  Zhou, Daming
收藏  |  浏览/下载：21/0  |  提交时间：2021/04/06
The Raman band shift of suspended graphene impacted by the substrate edge and helium ion irradiation 期刊论文
Nano Express, 2021, 卷号: 2, 期号: 1
作者:  Xie,Wanyi;  He,Shixuan;  Fang,Shaoxi;  Zhou,Daming;  Zhang,Yongna
收藏  |  浏览/下载：25/0  |  提交时间：2021/02/24
Probing the changes of carotenoids in Microcystis flosaquae under environmental perturbations by two-dimensional Raman correlation spectroscopy 期刊论文
JOURNAL OF RAMAN SPECTROSCOPY, 2019, 页码: 10
作者:  He, Shixuan;  Xie, Wanyi;  Fang, Shaoxi;  Zhang, Ping;  Li, Zhe
收藏  |  浏览/下载：123/0  |  提交时间：2020/08/24
Flexible and Highly Sensitive Pressure Sensors Based on Microstructured Carbon Nanowalls Electrodes 期刊论文
NANOMATERIALS, 2019, 卷号: 9, 期号: 4, 页码: 11
作者:  Zhou, Xi;  Zhang, Yongna;  Yang, Jun;  Li, Jialu;  Luo, Shi
收藏  |  浏览/下载：55/0  |  提交时间：2019/06/24
上海市松江区社区居民高尿酸血症与慢性肾病的相关性研究 期刊论文
中华疾病控制杂志, 2019, 卷号: 23, 期号: 3
作者:  周晓燕;  赵琦;  王娜;  王瑞平;  张越
收藏  |  浏览/下载：10/0  |  提交时间：2019/12/05
中国改革开放以来的高分子物理和表征研究 期刊论文
高分子学报, 2019, 期号: 10
作者:  安立佳;  陈尔强;  崔树勋;  董侠;  傅强
收藏  |  浏览/下载：26/0  |  提交时间：2019/12/05
Effect of a Quality of Care Improvement Initiative in Patients With Acute Coronary Syndrome in Resource-Constrained Hospitals in China A Randomized Clinical Trial 期刊论文
2019, 卷号: 4, 期号: 5, 页码: 418-427
作者:  Wu, Yangfeng;  Li, Shenshen;  Patel, Anushka;  Li, Xian;  Du, Xin
收藏  |  浏览/下载：219/0  |  提交时间：2020/01/03
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.  
我国城市地区癌症筛查项目人员对筛查工作意愿倾向的多中心调查及政策建议 期刊论文
中华流行病学杂志, 2018, 期号: 2
作者:  石菊芳;  毛阿燕;  孙宗祥;  雷海科;  邱五七
收藏  |  浏览/下载：12/0  |  提交时间：2019/12/04

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