Single-dip colorimetric detection of cyanide using paper-based analytic device based on immobilized silver nanoparticles Marco Laurence Budlayan, Jeanne Phyre Lagare-Oracion, Jonathan Patricio, Lyka De La Rosa, Susan Arco, Arnold Alguno, Jonathan Manigo, Rey Capangpangan*, 10.1007/s40089-022-00373-1