However, recent research has shown that lab-on-paper platforms provide a feasible means of detecting early-stage kidney disease by evaluating the concentrations of creatinine (Cre) and albumin (Alb) [105,106,107,108,109,110,111], micro-albumin and protein [112,113,114,115,116], and uric acid [117,118,119,120,121,122,123] in urine samples. Here, ALB is linked to kidney disorder.