Formulation

pH

Droplet size (nm)

Polydispersity index (PDI)

Surface tension

Viscosity

Blank^*

7.54 ± 0.52

85.7 ±0.1

0.0098

83.6 ± 1.2

150 ± 17

ME_a

7.62 ± 0.14

85.8 ± 0.2

0.0098

84.4 ± 1.2

151 ± 20

Blank

7.43 ± 0.21

89.8 ± 0.6

0.0096

85.2 ± 1.1

145 ± 14

ME_b

7.21 ± 0.33

89.9 ± 0.3

0.0097

86.4 ± 1.1

148 ± 12

Blank

7.33 ± 0.62

93.7 ± 0.1

0.0100

84.3 ± 0.9

151 ± 20

ME_c

7.52 ± 0.41

93.7 ± 0.1

0.0100

85.0 ± 0.9

154 ± 15

Blank

7.34 ± 0.22

95.2 ± 0.5

0.0095

84.2 ± 0.4

153 ± 17

ME_d

7.52 ± 0.73

95.2 ± 0.5

0.0095

84.3 ± 0.6

154 ± 17