Table 3.

Brain biodistribution of rhodamine solution and rhodamine-loaded nanoparticles

Formulation	Fluorescence intensity, mean ± standard deviation
	30 minutes		60 minutes
	Hippocampus	Cortex	Hippocampus	Cortex
Rhodamine solution	13.77±1.39	10.78±1.11	9.79±1.57	3.13±1.53
NPR1	19.95±1.69	16.99±3.48	10.31±1.83	9.22±2.05
NPR2	29.72±1.05	17.56±3.42	30.26±2.13	31.36±1.95
NPR3	29.61±2.45	18.09±2.11	21.35±1.71	26.25±2.83