期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 216, 期 -, 页码 608-613出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2015.04.087
关键词
Smartphone sensor; Mobile phone sensor; Portable analytical devices; Electrogenerated chemiluminescence; Electrochemiluminescence
资金
- Australian Research Council [FT100100646, DP150102741, LE120100213]
- Australian Research Council [LE120100213] Funding Source: Australian Research Council
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. (C) 2015 Elsevier B.V. All rights reserved.
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