掺杂法制备溴氰菊酯UCNP-Fe3O4-MIP传感材料及其传感体系研究

doi:10.11896/cldb.20040123

材料导报

2021, Vol. 35

Issue (12): 12169-12174 https://doi.org/10.11896/cldb.20040123

高分子与聚合物基复合材料

掺杂法制备溴氰菊酯UCNP-Fe₃O₄-MIP传感材料及其传感体系研究

李道亮¹, 王嫦嫦^1,2, 郭婷¹, 周鸿媛¹, 张宇昊^1,3, 马良^1,3

1 西南大学食品科学学院,重庆 400715
2 武汉市农业科学院环境与安全研究所,武汉 430207
3 西南大学生物学研究中心,重庆 400715

Study on Preparation and Sensing System of Deltamethrin UCNP-Fe₃O₄-MIP Sensing Material Based on Doping Method

LI Daoliang¹, WANG Changchang^1,2, GUO Ting¹, ZHOU Hongyuan¹, ZHANG Yuhao^1,3, MA Liang^1,3

1 College of Food Science, Southwest University, Chongqing 400715, China
2 Institute of Environment and Safety, Wuhan Academy of Agricultural Science, Wuhan 430207, China
3 Biological Science Research Center of Academy for Advanced Interdisciplinary Studies Southwest University, Chongqing 400715, China

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摘要本工作以溴氰菊酯为模板分子,采用掺杂法制备了兼顾磁性、上转换和分子印迹特性的传感材料(UCNP-Fe₃O₄-MIP),并基于该传感材料建立高灵敏度、高选择性的传感体系,用于高效快速地识别分析果蔬中的溴氰菊酯。结果表明,上转换纳米材料(Upconversion particle, UCNP)是直径约为50 nm的六边形结构,呈均匀分布,经分子印迹层包裹后合成的UCNP-Fe₃O₄-MIP的直径约为170 nm。应用该传感体系检测溴氰菊酯的线性范围为0.001~0.8 mg/L,检出限为6.28×10^-4 mg/L,对葡萄的加标回收率为89.59%~97.19%,相对标准偏差为6.08%~8.08%;对白菜的加标回收率为92.71%~103.82%,相对标准偏差为4.22%~8.93%,与气相色谱法进行方法对比,准确度无显著性差异。本工作所采用方法的灵敏度比高效液相色谱高2个数量级,传感检测仅需大约1 min,操作步骤简单方便,检测成本低。本工作建立的磁性上转换分子印迹传感体系可用于拟除虫菊酯类农药溴氰菊酯的快速、低成本、高灵敏和高特异性的测定。

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	李道亮
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	张宇昊
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关键词: 溴氰菊酯分子印迹聚合物上转换荧光纳米材料磁性纳米材料高灵敏

Abstract: IIn this work,the magnetic upconvertion molecularly imprinted polymer (UCNP-Fe₃O₄-MIP) was firstly prepared using deltamethrin as the template by doping method. Based on the sensing materials, a highly sensitive and highly selective sensing system was established for the efficient and rapid detection of deltamethrin in fruits and vegetables. The results showed that UCNP was a uniformly distributed hexagonal structure with a diameter of about 50 nm, and the UCNP-Fe₃O₄-MIP with a diameter of about 170 nm which was wrapped with a molecularly imprinted layer. The linear range and the detection limit of deltamethrin detection using this sensing system were 0.001—0.8 mg/L and 6.28×10^-4 mg/L, respectively. The spike recovery rate of grape was 89.59%—97.19% with RSD at the range of 6.08%—8.08% while the spike recovery rate of cabbage was 92.71%—103.82% with RSD at the range of 4.22%—8.93%. Compared with the gas chromatography method, no significant difference in accuracy but two orders of magnitude higher sensitivity was observed. Besides, the magnetic upconversion molecularly imprinted sensing material can be easily used and the detection time was only about 1 min, which make this method time-saving and inexpensive. Generally, the magnetic upconversion molecular imprinting sensing system established in this study could be used for the rapid and low-cost determination of deltamethrin with high sensitivity and specificity.

Key words: deltamethrin molecularly imprinted polymer upconversion fluorescent nanoparticle magnetic nanomaterials highly-sensitive

出版日期: 2021-06-25 发布日期: 2021-07-01

ZTFLH:

TS207

基金资助: 重庆市留学人员回国创业创新支持计划(cx2018032); 重庆市应用开发(重点)项目(cstc2013yykfB80016)

通讯作者: zhyhml@swu.edu.cn

作者简介: 李道亮,自2018年9月就读于西南大学食品科学专业。主要从事食品安全与毒素检测领域的研究。
马良,博士,西南大学食品科学学院教授,硕士研究生导师,主要从事食品安全与质量控制、现代食品检测技术方向的研究。重点针对生物毒素、农药等小分子污染物进行高灵敏度识别与鉴定检测技术,快检产品、传感器等小型快速检测装备的研究。主持国家自然科学基金项目、国家973计划子课题、国家863计划子课题、重庆市技术创新与应用示范项目、重庆市留学人员创业创新支持计划(优秀)项目等科研项目。以第一完成人获得授权国家发明专利5项,国家实用新型专利1项。

引用本文:

李道亮, 王嫦嫦, 郭婷, 周鸿媛, 张宇昊, 马良. 掺杂法制备溴氰菊酯UCNP-Fe₃O₄-MIP传感材料及其传感体系研究[J]. 材料导报, 2021, 35(12): 12169-12174.
LI Daoliang, WANG Changchang, GUO Ting, ZHOU Hongyuan, ZHANG Yuhao, MA Liang. Study on Preparation and Sensing System of Deltamethrin UCNP-Fe₃O₄-MIP Sensing Material Based on Doping Method. Materials Reports, 2021, 35(12): 12169-12174.

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http://www.mater-rep.com/CN/10.11896/cldb.20040123 或 http://www.mater-rep.com/CN/Y2021/V35/I12/12169

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