A cost-effective microfluidic device for determination of biodiesel content in diesel blends - Soares, Samara; Ramos-Lorente, Celia E.; Ruiz-García, Isidoro; Rocha, Fabio Rodrigo Piovezani; Erenas, Miguel M.; Orbe-Payá, Ignacio de; López-Ruiz, Nuria; Capitán-Vallvey, Luis F. (Sensors and Actuators B: Chemical, 2023)