Table 2.

The raw materials for PU nanoparticle synthesis

Sample code	Aqueous phase			Organic phase	Ginger extract, mL
BD, mL	PEG/PCL, mL	Tween®20, mL	LDI, mL
PU_0	0.6	0.2+1.0 0.6+0.6 1.0+0.2	1.2	2.0	–
PU_1	0.6	0.2+1.0 0.6+0.6 1.0+0.2	1.2	2.0	1.8

Abbreviations: PU, polyurethane; BD, 1,4-butanediol; PEG, polyethylene glycol; PCL, polycaprolactone diol; LDI, lysine diisocyanate; PU_0, polyurethane sample without ginger extract; PU_1, polyurethane sample with ginger extract.