当前位置:首页>农业>ENCECO | 南京农业大学刘金彤团队:靶标可调控纳米酶传感器:智能传感平台追踪作物中哒嗪硫磷的生物积累

ENCECO | 南京农业大学刘金彤团队:靶标可调控纳米酶传感器:智能传感平台追踪作物中哒嗪硫磷的生物积累

  • 2026-02-09 04:35:38
ENCECO | 南京农业大学刘金彤团队:靶标可调控纳米酶传感器:智能传感平台追踪作物中哒嗪硫磷的生物积累
【研究背景导读】

哒嗪硫磷pyridaphenthion是一种广泛应用于水稻、果蔬等作物的有机磷类的光谱杀虫杀螨剂。哒嗪硫磷在田间极易随着水流进入河流溪涧,造成地表水污染。并且施药区域周边的水道中,哒嗪硫磷的的浓度短时间内显著升高,造成的环境胁迫不可忽视。此外,吡啶磷的神经毒性,对害虫水生生物甚至人类健康造成潜在威胁然而,现有的针对哒嗪硫磷的传感检测较少。

【文章内容概要】

近日,南京农业大学刘金彤团队在Environmental Chemistry and Ecotoxicology期刊上发表了题为“Target-tunable colorimetric sensor array based with mixed-valence cerium-centered metal-organic framework nanozyme for on-site sensitive detection of pyridaphenthion bioaccumulation in crops”的研究论文。该研究通过靶标哒嗪硫磷调控酸性磷酸酶(ACP活性成功实现铈基金属有机框架(CeMOF)纳米酶类过氧化物酶活性,并借助3,3',5,5'-四甲基联苯胺TMB)显色剂和智能手机,构建智能传感平台检测作物中的哒嗪硫磷

1ACeMOF合成过程示意图。(B)基于哒嗪硫磷调控的CeMOF类过氧化物酶活性检测水稻中哒嗪硫磷残留的原理。(C)结合智能手机实现哒嗪硫磷现场可视化分析的应用展示。

研究发现,原位部分氧化法合成得到的CeMOF具有类过氧化物酶(POD-like)活性,可以在H2O2的存在下,氧化无色的TMB为蓝色的oxTMBCeMOFPOD-like活性受到抗坏血酸(AA)的调控。传感平台的构建基于ACP水解L-抗坏血酸-2-磷酸酯AAP)和哒嗪硫磷对ACP的抑制作用,成功实现了哒嗪硫磷调控CeMOFPOD-like活性和对哒嗪硫磷生物累积量的测定,检测限达0.099 ng·mL⁻¹。此外,oxTMB的蓝色在视觉上可见,借助智能手机的图像采集和RGB分析,实现了对哒嗪硫磷的现场检测分析。

该研究首次利用MOF传感器监测哒嗪硫磷胁迫下水稻中吡啶磷的生物累积行为为设计靶向触发式开关纳米酶指明了方向,也为农药残留现场监测提供了智能化高效解决方案。

                                                      【原文链接】

Guanghao Chen, Lin Zhou, Tingting Cai, Jiale Song, Jintong Liu, Hong Yang, 2026. Target-tunable colorimetric sensor array based with mixed-valence cerium-centered metal-organic framework nanozyme for on-site sensitive detection of pyridaphenthion bioaccumulation in crops,Environmental Chemistry and Ecotoxicology. 8,185-194.

【作者介绍】

         通讯作者:      

           刘金彤

           副教授 南京农业大学

刘金彤,南京农业大学理学院副教授,硕士生导师,入选江苏省优青、江苏省双创计划-“双创博士、江苏省青年科技人才托举工程、南京农业大学钟山学者学术新秀。主要从事功能化纳米探针构建及环境污染物分析传感研究。主持国家自然科学基金、国家重点研发计划项目、江苏省优秀青年基金、江苏省自然科学基金青年项目、国家重点实验室开放基金、中央高校基本科研业务费-“滨江基石”-优青专项等多项基金,并参与多项国家基金项目。迄今发表SCI论文50余篇(总被引2000余次),其中以一作/通讯在Angew. Chem. Int. Ed.Chem. Soc. Rev.J. Hazar. Mater.BiomaterialsFood Chem.ACS Appl. Mater. InterfacesAnal. Chem.ChemosphereEcotox. Environ. Safe.Chem. Commun.J. Agric. Food Chem.Chem. Eng. J.等高水平期刊上发表科研论文30余篇。

 【期刊介绍】

Environmental Chemistry and Ecotoxicology (缩写ENCECO) 主要聚焦化学品在全球环境中的传输规律及其在生态系统中的毒性机制,生物体中的生物利用度和生物蓄积性,食物链中的生物放大,以及生态系统分析中的新技术和新方法、跨学科生态毒理学信息的处理方法等。期刊主要研究方向包括:环境化学、生态毒理学、环境修复、风险评估等。

根据科睿唯安发布2023年度期刊引证报告,Environmental Chemistry and Ecotoxicology首个影响因子为9.0,在ENVIRONMENTAL SCIENCESToxicology学科领域均位于Q1区。《2025年中国科学院文献情报中心期刊分区表》正式发布,Environmental Chemistry and Ecotoxicology荣列大类:环境科学与生态学1Top期刊;小类:ENVIRONMENTAL SCIENCES 环境科学1TOXICOLOGY 毒理学1

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  1. CONNECT:[ UseTime:0.000610s ] mysql:host=127.0.0.1;port=3306;dbname=h_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000778s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.003776s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000594s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000514s ]
  6. SELECT * FROM `set` [ RunTime:0.001965s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000603s ]
  8. SELECT * FROM `article` WHERE `id` = 469647 LIMIT 1 [ RunTime:0.010845s ]
  9. UPDATE `article` SET `lasttime` = 1770700835 WHERE `id` = 469647 [ RunTime:0.015144s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000349s ]
  11. SELECT * FROM `article` WHERE `id` < 469647 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000516s ]
  12. SELECT * FROM `article` WHERE `id` > 469647 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.009050s ]
  13. SELECT * FROM `article` WHERE `id` < 469647 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.009682s ]
  14. SELECT * FROM `article` WHERE `id` < 469647 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.024778s ]
  15. SELECT * FROM `article` WHERE `id` < 469647 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.008175s ]
0.157981s