A Platinum Reference Electrode for Ion-Sensitive Field-Effect Transistor

Zhao Dan; Zhang Junkai; Zhang Jingwei; Xu Ming; Wu Dongping

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A Platinum Reference Electrode for Ion-Sensitive Field-Effect Transistor

机译：离子敏感型场效应晶体管的铂参比电极

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摘要

The reference electrode (RE), such as the widely used Ag/AgCl redox-couple electrode, is both hard to maintain and difficult to integrate as a constituent of an on-chip sensing system. Inert metals, such as Pt and Au, have been investigated as a pseudo-RE in miniaturized sensing systems. However, they generally suffer from instabilities arising from variations of ion compositions in the electrolyte. This paper presents a novel microfluidic-controlled Pt-KCl RE (PtRE) system that sets a stable potential independent of ion activities and activity changes. Assisted by extensive simulations to guide the system design, we show experimentally that the microfluidic-controlled PtRE system performs the functions of an excellent RE for ion-sensitive field-effect transistor (ISFET). The PtRE system is then implemented as an RE for an ISFET in pH sensing. Miniaturization of the PtRE system to millimeter-dimensions is shown viable by simulation, which may open the possibility for its on-chip integration.

机译：参考电极（RE），例如广泛使用的Ag / AgCl氧化还原耦合电极，既难以维护，又难以集成为片上传感系统的组成部分。惰性金属（例如Pt和Au）已在微型传感系统中作为伪RE进行了研究。然而，它们通常遭受由电解质中离子组成的变化引起的不稳定性。本文提出了一种新型的微流控Pt-KCl RE（PtRE）系统，该系统设置了独立于离子活性和活性变化的稳定电位。在广泛的仿真辅助下指导系统设计，我们通过实验证明了微流控PtRE系统为离子敏感场效应晶体管（ISFET）执行了出色的RE功能。然后将PtRE系统实现为pH传感中ISFET的RE。通过仿真显示，将PtRE系统小型化为毫米尺寸是可行的，这可能为其片上集成打开可能性。

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来源
《IEEE sensors journal》 |2019年第6期|2003-2008|共6页
作者
Zhao Dan; Zhang Junkai; Zhang Jingwei; Xu Ming; Wu Dongping;
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作者单位

Fudan Univ, State Key Lab ASIC & Syst, Sch Microelect, Shanghai 200433, Peoples R China;

Fudan Univ, State Key Lab ASIC & Syst, Sch Microelect, Shanghai 200433, Peoples R China;

Fudan Univ, State Key Lab ASIC & Syst, Sch Microelect, Shanghai 200433, Peoples R China;

Fudan Univ, State Key Lab ASIC & Syst, Sch Microelect, Shanghai 200433, Peoples R China;

Fudan Univ, State Key Lab ASIC & Syst, Sch Microelect, Shanghai 200433, Peoples R China;

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正文语种 eng
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关键词
Ion-sensitive field-effect transistor (ISFET); biochemical sensors; reference electrode (RE); microfluidic;

机译：离子敏感场效应晶体管（ISFET）;生化传感器;参比电极（RE）;微流体;

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专利

1. A Platinum Reference Electrode for Ion-Sensitive Field-Effect Transistor [J] . Zhao Dan, Zhang Junkai, Zhang Jingwei, Nature reviews Cancer . 2019,第6期

机译：用于离子敏感场效应晶体管的铂参考电极
2. Stable Thin-Film Reference Electrode on Plastic Substrate for All-Solid-State Ion-Sensitive Field-Effect Transistor Sensing System [J] . Qiaofeng Li, Wei Tang, Yuezeng Su, IEEE Electron Device Letters . 2017,第10期

机译：用于全固态离子敏感场效应晶体管传感系统的塑料衬底上的稳定薄膜参比电极
3. Additive-Salt Effect on Low Detection Limit and Slope Sensitivity in Response of Potassium- and Sodium-Selective Neutral Carrier Based Electrodes and Their Liquid-Membrane Based Ion-Sensitive Field-Effect Transistor [J] . Shin-ichi WAKIDA, Takashi MASADOME, Toshihiko IMATO, Analytical Sciences . 1999,第1期

机译：钾盐选择性钠中性载流子电极及其液膜离子敏感场效应晶体管响应中的加盐效应对低检测限和斜率灵敏度的影响
4. Confirmation of the Instrumental Difference for Each Ion-Sensitive Field-Effect Transistors to Evaluate Mental Workload [C] . Kenichi KITAMURA, Koji MURAI, Shin-ichi WAKIDA IEEE International Conference on Systems, Man, and Cybernetics . 2020

机译：确认每个离子敏感场效应晶体管的仪器差异，以评估心理工作量
5. The physics and technology of platinum silicide source and drain field-effect transistors [D] . Snyder, John Peter 1996

机译：硅化铂源漏场效应晶体管的物理技术
6. Design and Implementation of a pH Sensor for Micro Solution Based on Nanostructured Ion-Sensitive Field-Effect Transistor [O] . Yiqing Wang, Min Yang, Chuanjian Wu 2020

机译：基于纳米结构离子敏感场效应晶体管的微液PH传感器的设计与实现
7. From conventional membrane electrodes to ion-sensitive field-effect transistors [O] . Bergveld, Piet, de Rooij, N.F. 1979

机译：从传统的膜电极到离子敏感的场效应晶体管

A Platinum Reference Electrode for Ion-Sensitive Field-Effect Transistor

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