. Author manuscript; available in PMC: 2008 Oct 8.

Published in final edited form as: J Control Release. 2007 Apr 11;122(3):393–398. doi: 10.1016/j.jconrel.2007.03.021

Table 1.

Comparison of the accumulation of Tf in Caco-2 and MCF-7 cells at different time of incubation

Type of Cells	Accumulation (% of initial internalized Tf)^a
	15 min	4 h
Caco-2	9.9 ± 1	33.4 ± 1.8
MCF-7	0.5 ± 0.03	2.4 ± 0.2

The percentage represents the mean of three measurements with the standard deviation.