Single Chip Potentiostat Measurement System
نویسندگان
چکیده
The paper describes new approach of potentiostat for very low sensor current measurements. Recent potentiostats were used as measurement devices which were standalone and sensors were connected by a screened wire. These concepts are inconvenient for the presented very low current measurements. The new approach is based on the potentiostat circuitry integrated on a chip that should be directly contacted to a Thick Film Technology (TFT) sensor.
منابع مشابه
Ultra Low Current Input Analog to Digital Converter based Bio-Chemical Sensor and Interfacing Circuit
A study of real time biological phenomenon especially at intra-cellular levels mandates usage of nonobtrusive probing and measurement techniques. It is imperative that the phenomenon being observed should not be disturbed in its dynamics and the sensor dimensions should be small enough not to damage cellular integrity. Usage of micro needle tungsten electrode sensors and amperometry techniques ...
متن کاملSmart Integrated Sensor for Multiple Detections of Glucose and L-Lactate Using On-Chip Electrochemical System
Multiple sensor electrodes, a supplementary electrode, a reference electrode, and signal-processing circuits were integrated on a single chip to develop a chip-shaped electrochemical sensing system. L-lactate and glucose were measured using on-chip working electrodes modified by polyion complex to immobilize lactate oxidase and glucose oxidase, respectively. Cyclic voltammetry measurements were...
متن کاملMiniaturized FDDA and CMOS Based Potentiostat for Bio-Applications
A novel fully differential difference CMOS potentiostat suitable for neurotransmitter sensing is presented. The described architecture relies on a fully differential difference amplifier (FDDA) circuit to detect a wide range of reduction-oxidation currents, while exhibiting low-power consumption and low-noise operation. This is made possible thanks to the fully differential feature of the FDDA,...
متن کاملWide Dynamic Range CMOS Potentiostat for Amperometric Chemical Sensor
Presented is a single-ended potentiostat topology with a new interface connection between sensor electrodes and potentiostat circuit to avoid deviation of cell voltage and linearly convert the cell current into voltage signal. Additionally, due to the increased harmonic distortion quantity when detecting low-level sensor current, the performance of potentiostat linearity which causes the detect...
متن کاملTowards a Multifunctional Electrochemical Sensing and Niosome Generation Lab-on-Chip Platform Based on a Plug-and-Play Concept
In this paper, we present a new modular lab on a chip design for multimodal neurotransmitter (NT) sensing and niosome generation based on a plug-and-play concept. This architecture is a first step toward an automated platform for an automated modulation of neurotransmitter concentration to understand and/or treat neurodegenerative diseases. A modular approach has been adopted in order to handle...
متن کامل