Development of a 3D-Printed Paper-Based Microfluidic Colorimetric Sensor for Nitrate Detection Using Silver Nanoparticles (AgNPs). Malaysian Journal of Science and Advanced Technology, [S. l.], v. 6, n. S2, p. 99–104, 2026. DOI: 10.56532/mjsat.v6iS2.823. Disponível em: https://mjsat.com.my/index.php/mjsat/article/view/823. Acesso em: 25 oct. 2026.