In this paper, we study the singular boundary value problem related to the normalized p-Laplacian {Delta(N)(p)u=lambda f(x,u,Du) in Omega, u>0 in Omega, u=0 on partial derivative Omega, where lambda>0 is a parameter and Delta(N)(p)u=1p|Du|2-pdiv(|D-u|(p-2)Du),1<p R is continuous and may exhibit singularity at t -> 0+. First, we establish the comparison principle by the perturbation method for the viscosity solution to the general equation Delta(N)(p)u=F(x,u,Du) under some conditions on the term F(x,t,q). When 2 <= n<pNovabeads: Stimuli-Responsive Signal-Amplifying Hydrogel Microparticles for Enzymeless Fluorescence-Based Detection of microRNA Biomarkers