轻金属离子含量便携移动分析技术

In this project, a kind of portable light metal ion analysis technique based on all-state ion selective electrode and smart mobile device will be designed and performed. This method exhibits a lot of advantages including cost-efficient, high efficiency, portable and easy to operate, etc. Moreover, it is especially noteworthy that several light metal ions such as potassium, sodium, calcium, magnesium etc. can be detected within just 1 minute. This technique and concerned instrument are expected to be widely applied in clinical diagnosis, food safety, personal health, sanitation and other fields..The main research includes several aspects: (1) selection and optimization of ion selective membrane and solid-contact transducing layer materials, as well as the process improvement on the batch preparation of ion selective electrode with screen printing technique; (2) design and development of light metal ion sensor based on all-state ion selective electrode; (3) design and fabrication of miniature multi-channel potential signal collection circuit; (4) design the mobile device application and data communication interface.

研发一种基于全固态离子选择性电极和智能移动设备的便携式轻金属离子分析技术。该方法成本低、效率高、使用方便，便于携带，能够在一分钟以内同时检测钾、钠、钙、镁等轻金属离子的含量，可以广泛应用于临床诊断、食品安全、个人健康、环境卫生等领域。.主要研究工作内容包括以下几个方面：（1）离子选择性膜和固接转换层材料筛选与优化、丝网印刷批量制备离子选择性电极工艺改进；（2）基于全固态离子选择性电极的轻金属离子传感器件制作；（3）微型多通道电位信号采集电路设计与制作；（4）智能移动设备应用软件以及数据通信接口设计。

在本项目的支持下，我们制备了多种纳米材料，如十二烷基硫醇单层保护的金纳米簇、碳微米球等，并将其作为离子电子转换层材料，用于全固态离子选择性电极传感芯片的制作；分别采用盘状玻碳电极、盘状金电极、ITO玻璃电极、印刷电路板、柔性印刷电路板作为基底，制做了全固态的离子选择性电极和传感芯片，并进行了测试；设计了多通道电压数据采集电路，及其与智能移动设备的通讯协议；设计了用于安卓操作系统的智能设备应用软件。通过项目的执行，实现了一套低成本、便携式的轻金属离子检测分析技术。该技术方法成本低、效率高、便于携带，可快速检测液体样品及皮肤表面汗液中的钾、纳、钙、镁等轻金属离子含量，并可实现在线监测。该技术方法具有广泛的通用性，可快速扩展至其他离子浓度检测应用场景。项目执行期间，共发表SCI论文6篇，申请专利3项，培养博士毕业生3人，硕士毕业生1人，再读博士生4人。

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