Journal
IEEE TRANSACTIONS ON NANOBIOSCIENCE
Volume 20, Issue 1, Pages 79-85Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TNB.2020.3036642
Keywords
Electrochemiluminescence; laser-induced graphene; sensor; polyimide; CO2 laser; open bipolar electrodes
Funding
- Department of Science and Technology, Science and Engineering Research Board (DST-SERB), Government of India [CRG/2019/005468]
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This study demonstrates a miniaturized 3D printed Electrochemiluminescence (ECL) sensing platform with Laser-Induced Graphene (LIG) based Open Bipolar Electrodes (OBEs), which can detect substances such as hydrogen peroxide and glucose with low cost, rapid realization, and miniaturization.
The present work demonstrates a miniaturized 3D printed Electrochemiluminescence (ECL) sensing platform with Laser-Induced Graphene (LIG) based Open Bipolar Electrodes(OBEs). To fabricate OBEs, polyimide (PI) substrate has been used as it provides properties like low-cost fabrication, high selectivity, great stability, easy reproducibility, cost-effectiveness and rapid prototyping. Moreover, graphene can be created on PI in a single step during the ablation of the CO2 laser. Android smartphone was efficiently used to sense ECL signals as well as to drive the required voltage to the OBEs. With the optimized parameters, the imaging system was successfully used to detect Hydrogen Peroxide (H-2 O-2) with a linear range of 1 mu M to 100 mu M and detection of limit (LOD) 5.8729 mu M (R-2 = 0.9449, n = 3). In addition, the detection of glucose has been carried out with a linear range of 1 mu M to 100 mu M and detection of limit (LOD) 0.138 mu M (R-2 = 0.9875, n = 3). Further, real samples were tested to manifest the workability of the platform for random samples. Overall, the developed low-cost, rapidly realized and the miniaturized system can be used in many biomedical applications, environmental monitoring and point-of-care testings.
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