Mobile phones have been used in combination with point of care (PoC) devices for over a decade now. However, their use seems restricted to the detection of sensing events using the video and camera functions. In contrast, the complementary ability to use mobile phones to power such PoC devices has been largely unexplored. This work demonstrates the proof-of-principle that a smartphone can be used to both power and analyze an electrochemiluminescence (ECL) detection system. A printed device is presented featuring an electrochemical cell connected in series to a rectenna that is able to use the Near Field Communication (NFC, 13.56 MHz) signal to provide the energy needed to generate ECL from Ru(bpy)₃²⁺/tri-n-propylamine. The emitted light, the intensity of which is directly proportional to the concentration of the ruthenium complex, can then be captured by the mobile phone camera and analyzed. This work presents the fabrication and the electrical and electrochemical characterization of the device. Effective voltages ranging from 0.90 to 4.50 V have been recorded, depending on the coupling between emitter and receiver, which translate into working electrode potentials ranging from 0.76 up to 1.79 V vs Ag. Detection and quantification limits of 0.64 and 1.52 μM, respectively, have been achieved for Ru(bpy)₃²⁺, and linear ranges up to 0.1 mM (red channel) and no less than 1.0 mM (green channel) have been found.

中文翻译：

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迈向下一代移动诊断：近场通信供电的电化学发光检测

十多年来，手机一直与护理点 (PoC) 设备结合使用。然而，它们的使用似乎仅限于使用视频和相机功能检测传感事件。相比之下，使用手机为此类 PoC 设备供电的互补能力在很大程度上尚未得到探索。这项工作证明了智能手机可用于为电化学发光 (ECL) 检测系统供电和分析的原理证明。展示了一种印刷设备，其特点是电化学电池与整流天线串联，该整流天线能够使用近场通信 (NFC，13.56 MHz) 信号提供从 Ru(bpy) ₃ ²⁺ /tri-生成 ECL 所需的能量n-丙胺。发射的光的强度与钌络合物的浓度成正比，然后可以被手机摄像头捕获并分析。这项工作介绍了该器件的制造以及电气和电化学表征。记录的有效电压范围为 0.90 至 4.50 V，具体取决于发射器和接收器之间的耦合，其转化为 0.76 至 1.79 V vs Ag 的工作电极电位。Ru(bpy) ₃ ²⁺的检测限和定量限分别为 0.64 和 1.52 μM，线性范围高达 0.1 mM（红色通道）和不少于 1.0 mM（绿色通道）。