检索结果-南通市图书馆

Advance on monitoring of radioactivity in food in China and Japan after Fukushima nuclear accident

Radiation Medicine and Protection 2022年第1期3卷 37-42页

作者： Shuying Kong Baolu Yang Fei Tuo Tianxiang Lu National Institute for Radiological Protection Chinese Center for Disease Control and PreventionKey Laboratory of Radiological Protection and Nuclear EmergencyChina CDCBeijing 100088China

After the nuclear accident at the Fukushima Daiichi Nuclear Power Plant(Fukushima nuclear accident)in 2011,Japan quickly took emergency measures to reduce radiation hazards posed by the released radioactive materials.As a neighboring country of Japan across the East China Sea,China has also taken some corresponding prevention and control measures.China has continuously strengthened the monitoring of radioactivity in food in recent years.This paper discusses the revision of standards for radioactivity in food,the improvement of methods and equipment,and the updating of monitoring systems performed in China and Japan over the last ten years after the Fukushima Daiichi accident.In addition,this paper outlines the recent problems left over from the nuclear accident,puts forward some views on the progress of important topics,and gives some thoughts and prospects on the further improvement of the monitoring systems of radioactivity in food in China.

关键词： food monitoring Radioactivity Fukushima nuclear accident

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Construction of Fluorescence Sensing Platform on the Basis of Molybdenum Disulfide Nanosheet for the Detection of AFB₁

引用

Journal of Biosciences and Medicines 2023年第2期11卷 1-14页

作者： Xiaoqing Wen Zichun Song Jiuying Cui Yan Li Qianli Tang Xianjiu Liao Youjiang Medical University for Nationalities Baise China

Purpose: Aflatoxin B1 is the most common mycotoxin in cereal crops;it is of stronger toxicity and has a carcinogenic effect. In recent years, a series of fluorescence sensors constructed on the basis of MoS2NS fluorescence quenching property have become a research hotspot. Therefore, we can construct a fast and simple analysis method with high specificity to detect AFB1 by utilizing MoS2NS, which can be effectively applied to food safety monitoring and clinical diagnosis. Method: In the current research, a fluorescence biosensor is developed on the basis of a new type of two-dimensional nano-material namely MoS2NS applied for the detection of AFB1. The fluorescence of Apt@AFB1 can be quickly quenched by MoS2NS through the fluorescence resonance energy transfer (FRET). When the target molecule AFB1 exists, after the specificity binding between AFB1 and aptamer, the Apt@AFB1 loses its single stranded structure and is away from MoS2NS, and the fluorescence of Apt®AFB1 cannot be quenched effectively. Such sensing signals can be used to achieve the sensitive detection of AFB1. Result: With this new method, under the optimized conditions, the AFB1 is analyzed in the MoS2NS/Apt®AFB1 sensing platform. Within the dynamic range of 0.2 - 25 ng/mL, the sensing platform expresses a good linear response to the level of AFB1 with the R2 = 0.9964 and LOD as 90 pg/mL. This method is applied to detect the actual serum samples and soybean milk with the recovery rate of 93.10% - 107.23% and 95.15% - 102.60% separately, and it can be used in the quantitative detection under the interference of other mycotoxins in a relatively accurate way. Conclusion: It is proved that this new detection method can be used as a potential biosensor platform for the detection of AFB1. This detection method features several advantages su

关键词： MoS2NS Aptamer Aflatoxin B1 Fluorescence Sensing Analysis food monitoring

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：