作者: Niamh Creedon , James F. Rohan , Emer Kennedy , Alan O’Riordan , Riona Sayers
DOI: 10.3390/S21093149
关键词: Front and back ends 、 Chip 、 Process engineering 、 Interference (communication) 、 Electronics 、 Software portability 、 Biosensor 、 Computer science 、 Nanosensor 、 Turnaround time
摘要: Global food production needs to increase in order meet the demands of an ever growing global population. As resources are finite, most feasible way this demand is minimize losses and improve efficiency. Regular monitoring factors like animal health, soil water quality for example, can ensure that being used their maximum Existing techniques however have limitations, such as portability, turnaround time requirement additional reagents. In work, we explore use micro- nano-scale electrode devices, development electrochemical sensing platform digitalize a wide range applications within agri-food sector. With platform, demonstrate direct detection pesticides, specifically clothianidin imidacloprid, with limits 0.22 ng/mL 2.14 respectively, nitrates limit 0.2 µM. addition, interdigitated structures also enable in-situ pH control technique mitigate interference modify analyte response. This applied analysis monochloramine, common disinfectant. Concerning biosensing, sensors modified bio-molecular probes both bovine viral diarrhea virus species antibodies, over 1 10 µg/mL. Finally, portable analogue front end electronic reader developed allow sensing, readout undertaken using smart phone application. sensor chip integrated these electronics provide fully functional end-to-end system compatible emerging Agri-Food digital decision support tools.