Solubility studies of nano-curcumin.

Sample	Molar absorptivity (mol−1 cm−1)	Absorbance	Concentration (mol L−1)	Solubility (μg mL−1)
Cur-NSM	6.18 × 103	0.837	1.21 × 10−4	74.0
Cur-SM	6.58 × 103	1.246	7.15 × 10−5	46.7
Cur-ASP	6.66 × 103	1.432	2.14 × 10−4	79.2
Curcumin	4.900 × 104	0.132	2.68 × 10−6	0.98