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. 2021 Mar 15;26(6):1633. doi: 10.3390/molecules26061633

Table 1.

Overview of results obtained from the physicochemical characterization of curcumin-loaded smartFilms, bulk- and nanosuspensions.

SmartFilms Bulk Suspension
Non-Diluted
Nanosuspension
Non-Diluted
Bulk Suspension Diluted Nanosuspension Diluted
curcumin content [µg]
in formulation
684 ± 16 2098 * ± 41 1946 * ± 48 574 * ± 99 614 * ± 11
z-average [nm] n.a. n.a. 217 ± 0.1 n.a. 205 ± 0.1
PDI 0.31 ± 0.02 0.35 ± 0.02
d(v)0.1 [µm] 11 ± 0.5 0.02 ± 0.0 8 ± 0.3 0.02 ± 0.0
d(v)0.5 [µm] 45 ± 7 0.1 ± 0.0 24 ± 2 0.1 ± 0.0
d(v)0.9 [µm] 153 ± 58 0.2 ± 0.0 65 ± 9 0.2 ± 0.0
d(v)0.95 [µm] 188 ± 77 0.5 ± 0.0 84 ± 15 0.5 ± 0.0
d(v)0.99 [µm] 251 ± 113 2.5 ± 0.2 130 ± 32 2.2 ± 0.1
amount of curcumin [µg/cm2] applied on skin 152 466 432 128 136

* Content of curcumin represents the amount of curcumin in 50 µL (corresponding volume of formulation applied on skin).