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    Design and construction of a low cost single-supply embedded telemetry system for amperometric biosensor applications


    Serra, Pier A. and Rocchitta, Gaia and Bazzu, Gianfranco and Manca, Antonio and Puggioni, Giulia and Lowry, John P. and O'Neill, Robert D. (2007) Design and construction of a low cost single-supply embedded telemetry system for amperometric biosensor applications. Sensors and Actuators B: Chemical, 122 (1). pp. 118-126. ISSN 0925-4005

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    Abstract

    A new embedded telemetry system for amperometric biosensor application is presented. The device consists of a single-supply miniature potentiostat-I/V converter, a microcontroller unit (MCU), a signal transmitter, and a stabilized power supply. The sensor current is converted to a digital value using a peripheral interface controller (PIC) MCU with an integrated analog-to-digital converter (ADC). The PIC firmware is developed in assembly and transferred to the MCU through an in-circuit-serial-programmer (ICSP). The digital data are sent to a personal computer using a miniaturized 433.92 MHz amplitude modulation (AM) transmitter with a linear range up to 30 m. The radio receiver is connected to a PC via a Universal Serial Bus (USB). Custom developed software, written in C and Basic, allows the PC to record, plot and handle the received data. The design, construction and operation of the hardware and software are described. The system performance was evaluated in vitro using a dummy cell and a platinum (Pt) amperometric glucose biosensor. This device serves as a basic model to realize an in vivo, low-cost, miniaturized telemetry system built with standard hardware components readily available.

    Item Type: Article
    Keywords: Potentiostat; Amperometry; Microcontroller; Biosensor; Telemetry;
    Academic Unit: Faculty of Science and Engineering > Chemistry
    Item ID: 8038
    Identification Number: https://doi.org/10.1016/j.snb.2006.05.013
    Depositing User: John Lowry
    Date Deposited: 22 Mar 2017 16:53
    Journal or Publication Title: Sensors and Actuators B: Chemical
    Publisher: Elsevier
    Refereed: Yes
    Funders: University of Sassari, Science Foundation Ireland (SFI)
    URI:

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