Table 2.

Intracellular PAMAM dendrimer content at different exocytosis times in MCF-7/ADR cells

	0 h	3 h	6 h	9 h	12 h
PAMAM-NH2	100 ± 5.5%	75.54 ± 1.5%	55.67 ± 4.5%	35.45 ± 3.4%	33.11 ± 1.6%
PAMAM-OH	100 ± 8.5%	94.25 ± 4.1%	81.04 ± 1.1%	81.93 ± 1.6%	80.08 ± 2.9%
PAMAM-COOH	100 ± 4.9%	96.37 ± 5.4%	70.73 ± 9.5%	53.66 ± 6.8%	64.39 ± 8.1%

All values are relative to the amount at 0 h. Mean ± SD, n = 3