2012 ©
             Publication
Journal Publication
Title of Article Smartphone-Based NFC Potentiostat for Wireless Electrochemical Sensing 
Date of Acceptance 30 December 2020 
Journal
     Title of Journal Applied Sciences 
     Standard ISI 
     Institute of Journal MDPI, St. Alban-Anlage 66, 4052 Basel, Switzerland 
     ISBN/ISSN 2076-3417 
     Volume 11 
     Issue
     Month January
     Year of Publication 2021 
     Page 392 
     Abstract Most electrochemical sensing requires affordable, portable and easy-to-use electrochemical devices for use in point-of-care testing and resource-limited settings. This work presents the design and evaluates the analytical performance of a near-field communication (NFC) potentiostat, a flat card-sized electrochemical device containing a microchip for electrical analysis and an NFC antenna for smartphone connection. The NFC interface is a wireless connection between the microchip and smartphone to simplify measuring units and make the potentiostat into a passive operated device, running without a battery. The proposed potentiostat can perform the common electrochemical techniques including cyclic voltammetry and chronoamperometry with a current range and voltage range of ±20 µA and ±0.8 V. The performance of the NFC potentiostat is compared to a commercial benchtop potentiostat using ferricyanide as a standard solution. The results show that the NFC potentiostat is comparable to a commercial benchtop potentiostat for both cyclic voltammetry and chronoamperometry measurements. The application of the proposed potentiostat is demonstrated by measuring ascorbic acid concentration. As described, the NFC potentiostat, which is compatible with a smartphone, is low-cost, small in size and user-friendly. Thus, the device can be developed for on-site measurement to apply in various fields. 
     Keyword potentiostat; battery-less; near-field communication; smartphone 
Author
607020060-4 Miss KARNPIMON KRORAKAI [Main Author]
Science Doctoral Degree

Reviewing Status มีผู้ประเมินอิสระ 
Status ตีพิมพ์แล้ว 
Level of Publication นานาชาติ 
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Part of thesis true 
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