Table 2.

Calculated weight losses for coated CNT and CNT-COOH with PAMAM using a percentage of polymer about 40% (Formulation A) and an exceeding amount (Formulation B).

CNTs	Formulation A (%)	Formulation B (%)	P-value
CNT-PAMAM	21.83 ± 2.63	21.75 ± 2.74	3.76 × 10−1
CNT-COOH-PAMAM	18.00 ± 2.36	22,13 ± 3,12	2.73 × 10−2
P-value	1.55 × 10−2	8.10 × 10−1

The data were obtained by Student’s t-test with P significant < 0.05.