A well-designed colorimetric sensor has been constructed for creatinine.
The strategy has been used for visual detection of creatinine in urine.
Calix[4]arene functionalized gold nanoparticles (AuNPs) based on assembly.
The proposed sensing platform is characterized by rapidness and high throughput.
Developed sensor was characterized by using TEM, DLS, UV–vis, FT-IR and ESI–MS.