Department of Chemical Engineering Kangwon National University Samcheok Gangwon-do 25913 Republic of Korea;
Resources Utilization Research Center Korea Institute of Geoscience and Mineral Resources Daejeon 34132 Republic of Korea;
Department of Chemical Engineering Kangwon National University Samcheok Gangwon-do 25913 Republic of Korea;
Department of Chemical Engineering Kangwon National University Samcheok Gangwon-do 25913 Republic of Korea;
Center for Nano Bio Development National Nanofab Center Daejeon 34141 Republic of Korea;
Department of Chemical Engineering Kangwon National University Samcheok Gangwon-do 25913 Republic of Korea;
Graphene ink; Fluid dynamics; Screen printing; Ion sensor; Real-time monitoring;