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Mathematical modeling of circulation time. (A) Schematic of compartments and governing equations. (B) Plasma concentration of fluorescent PEG NPs following i.v. administration (n = 3; error bars, s.d.). (C) Bladder fluorescence of mice following i.v. administration of fluorescent Glu–Fib, PEG, or NWs (n = 3; errors bars, s.d.).
