Mobile phone-based electrochemiluminescence sensing exploiting the 'USB On-The-Go' protocol

Doeven, Egan H., Barbante, Gregory J., Harsant, Anthony J., Donnelly, Paul S., Connell, Timothy U., Hogan, Conor F. and Francis, Paul S. 2015, Mobile phone-based electrochemiluminescence sensing exploiting the 'USB On-The-Go' protocol, Sensors and actuators, b: chemical, vol. 216, pp. 608-613, doi: 10.1016/j.snb.2015.04.087.

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Title Mobile phone-based electrochemiluminescence sensing exploiting the 'USB On-The-Go' protocol
Author(s) Doeven, Egan H.ORCID iD for Doeven, Egan H.
Barbante, Gregory J.
Harsant, Anthony J.
Donnelly, Paul S.
Connell, Timothy U.
Hogan, Conor F.
Francis, Paul S.ORCID iD for Francis, Paul S.
Journal name Sensors and actuators, b: chemical
Volume number 216
Start page 608
End page 613
Total pages 6
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2015-09
ISSN 0925-4005
Keyword(s) Science & Technology
Physical Sciences
Chemistry, Analytical
Instruments & Instrumentation
Smartphone sensor
Mobile phone sensor
Portable analytical devices
Electrogenerated chemiluminescence
Summary A low-cost system to generate, control and detect electrochemiluminescence using a mobile smartphone is described. A simple tone-detection integrated circuit is used to switch power sourced from the phone's Universal Serial Bus (USB) 'On-The-Go' (OTG) port, using audible tone pulses played over the device's audio jack. We have successfully applied this approach to smartphones from different manufacturers and with different operating system versions. ECL calibrations of a common luminophore, tris(2,2′-bipyridine)ruthenium(II) ([Ru(bpy)3]2+), with 2-(dibutylamino)ethanol (DBAE) as a co-reactant, showed no significant difference in light intensities when an electrochemical cell was controlled by a mobile phone in this manner, compared to the same calibration generated using a conventional potentiostat. Combining this novel approach to control the applied potential with the measurement of the emitted light through the smart phone camera (using an in-house built Android app), we explored the ECL properties of a water-soluble iridium(III) complex that emits in the blue region of the spectrum. The iridium(III) complex exhibited superior co-reactant ECL intensities and limits of detection to that of the conventional [Ru(bpy)3]2+ luminophore.
Language eng
DOI 10.1016/j.snb.2015.04.087
Field of Research 030102 Electroanalytical Chemistry
0301 Analytical Chemistry
0912 Materials Engineering
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Grant ID FT100100646
Copyright notice ©2015, Elsevier
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