当前位置:首页>农业>河南农业大学胡建东教授/吴俊锋教授/南开大学周震教授联合团队NC子刊:植物受体启发亚铜复合物 实现可穿戴痕量乙烯气体传感

河南农业大学胡建东教授/吴俊锋教授/南开大学周震教授联合团队NC子刊:植物受体启发亚铜复合物 实现可穿戴痕量乙烯气体传感

  • 2026-06-23 05:58:26
河南农业大学胡建东教授/吴俊锋教授/南开大学周震教授联合团队NC子刊:植物受体启发亚铜复合物 实现可穿戴痕量乙烯气体传感

近日,河南农业大学吴俊锋教授、胡建东教授联合南开大学周震教授团队,受植物乙烯受体信号传导机制启发,成功开发出一种基于一价铜-胱氨酸配合物(CuCyt)与MXene复合的无贵金属可穿戴乙烯传感器,可在室温下实现痕量乙烯的高灵敏、高选择性检测,相关成果发表于《Nature Communications》。

一、研究背景

乙烯既是调控植物生长、果实成熟的核心植物激素,也是有机合成工业的重要原料。在农业领域,乙烯浓度直接决定果蔬采后保鲜与品质;在工业场景中,乙烯管道泄漏会引发资源损耗与安全隐患。

传统乙烯检测依赖气相色谱、荧光光谱等大型仪器,难以实现原位、实时、便携监测。现有电阻式乙烯传感器大多依赖钯、铂等贵金属催化剂,且需高温工作,同时存在选择性差、机械刚性强等问题,无法适配智慧农业、工业管道分布式可穿戴监测的需求。植物乙烯受体可通过Cu配位中心精准识别痕量乙烯,为高性能传感器的仿生设计提供了天然思路。

二、核心研究成果

研究团队模拟植物乙烯受体的Cu配位识别位点,以L-半胱氨酸与铜盐为原料,在碱性条件下合成硫桥连结构的CuCyt配合物,将其与p型半导体MXene复合后,制备成柔性叉指电极可穿戴传感器,全程无需贵金属,大幅降低材料成本。

传感机制方面,乙烯分子与CuCyt中的Cu形成稳定π配位络合物,触发电子沿乙烯→CuCytMXene路径转移,降低MXene空穴浓度并使电阻上升,实现电阻型信号输出,总转移电荷约0.43 e

实际应用验证中,该传感器可精准监测香蕉、苹果的乙烯释放量,区分果实成熟、衰老、腐烂阶段,还能实时检测模拟工业管道的乙烯泄漏,满足农业采后监测与工业安全检测需求。

三、图文导读

1 展示仿生传感设计思路,模拟植物乙烯受体Cu配位活性中心,构建CuCyt/MXene异质结构的乙烯识别与电子传递路径

2 呈现CuCyt的牡丹状多级微观形貌,以及CuCyt/MXene复合材料的元素分布与多孔结构,为乙烯吸附提供充足位点

4 验证传感器的传感机制、动态响应曲线,以及浓度-响应的线性拟合关系,证实痕量检测的可靠性

6 测试传感器的选择性、机械柔性、温湿度与氧气稳定性,明确环境适应能力

7 完成果蔬乙烯监测、工业泄漏检测的实际场景验证,落地应用可行性

四、总结

本研究成功将植物乙烯受体的生物识别原理转化为材料设计策略,研发的无贵金属、室温工作、柔性可穿戴乙烯传感器,兼具超低声检出限、快速响应、高选择性与良好机械稳定性。

该成果突破了传统乙烯传感器依赖贵金属、高温、刚性基底的技术瓶颈,为农产品采后品质实时监测、化工行业乙烯泄漏安全预警提供了全新的低成本解决方案,也为仿生气体传感器的设计与开发提供了新的研究思路。

具体细节请阅读原论文......

点击阅读原文,论文链接https://doi.org/10.1038/s41467-026-71748-7

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  1. CONNECT:[ UseTime:0.000722s ] mysql:host=127.0.0.1;port=3306;dbname=h_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000824s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000418s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000339s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000495s ]
  6. SELECT * FROM `set` [ RunTime:0.000246s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000525s ]
  8. SELECT * FROM `article` WHERE `id` = 532831 LIMIT 1 [ RunTime:0.005305s ]
  9. UPDATE `article` SET `lasttime` = 1782475445 WHERE `id` = 532831 [ RunTime:0.025026s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000392s ]
  11. SELECT * FROM `article` WHERE `id` < 532831 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000664s ]
  12. SELECT * FROM `article` WHERE `id` > 532831 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000506s ]
  13. SELECT * FROM `article` WHERE `id` < 532831 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000839s ]
  14. SELECT * FROM `article` WHERE `id` < 532831 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000898s ]
  15. SELECT * FROM `article` WHERE `id` < 532831 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.005677s ]
0.112816s