Impedimetric Plant Biosensor Based on Minimally Invasive and Flexible Microneedle Electrodes
AuthorsBu Khamsin, Abdullah
Patel, Niketan Sarabhai
Krattinger, Simon G.
KAUST DepartmentBiological and Environmental Sciences and Engineering (BESE) Division
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Electrical Engineering Program
Sensing, Magnetism and Microsystems Lab
Online Publication Date2020-04-07
Print Publication Date2020-01
Permanent link to this recordhttp://hdl.handle.net/10754/662622
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AbstractThis paper presents an impedimetric biosensor for monitoring of crops using novel microneedle electrodes for minimally invasive, sensitive measurements, compatible with smart agriculture developments. The biosensor was fabricated through polydimethylsiloxane imprinting using a high-resolution 3D printed negative mold. This method allows for fabrication of tailored microneedles with heights up to 500μm, required to penetrate through the epidermis of a leaf. The sensor was tested by recording the bioimpedance of Barely leaves and comparing its performance to conventional planar and needle electrodes. Furthermore, we present evidence of a diurnal pattern in plant bioimpedance that was detected by monitoring the leaf bioimpedance under controlled conditions.
CitationBukhamsin, A., Moussi, K., Patel, N., Przybysz, A., Wang, Y., Krattinger, S., & Kosel, J. (2020). Impedimetric Plant Biosensor Based on Minimally Invasive and Flexible Microneedle Electrodes. 2020 IEEE 33rd International Conference on Micro Electro Mechanical Systems (MEMS). doi:10.1109/mems46641.2020.9056158
Conference/Event name33rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2020