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

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dc.contributor.authorDoeven, E.H.
dc.contributor.authorBarbante, G.J.
dc.contributor.authorHarsant, A.J.
dc.contributor.authorDonnelly, P.S.
dc.contributor.authorConnell, T.U.
dc.contributor.authorHogan, C.F.
dc.contributor.authorFrancis, P.S.
dc.date.issued2015
dc.description.abstractA 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.
dc.identifier.citationSensors and Actuators, B: Chemical, 2015; 216:608-613
dc.identifier.doi10.1016/j.snb.2015.04.087
dc.identifier.issn0925-4005
dc.identifier.urihttps://hdl.handle.net/11541.2/122655
dc.language.isoen
dc.publisherElsevier
dc.relation.fundingARC FT100100646
dc.relation.fundingARC DP150102741
dc.relation.fundingARC LE120100213
dc.rightsCopyright 2015 Elsevier
dc.source.urihttp://dx.doi.org/10.1016/j.snb.2015.04.087
dc.subjectsmartphone sensor
dc.subjectmobile phone sensor
dc.subjectportable analytical devices
dc.subjectElectrogenerated chemiluminescence
dc.subjectElectrochemiluminescence
dc.titleMobile phone-based electrochemiluminescence sensing exploiting the 'USB On-The-Go' protocol
dc.typeJournal article
pubs.publication-statusPublished
ror.mmsid9916103005901831

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