Table 3.
Particle size, zeta potential, PDI and electrical conductivity of MEs without ATRA (blank ME) and ATRA-loaded ME
| Formulations | Particle size (nm)
|
Zeta potential (mV)
|
PDI
|
Conductivity (µS/cm)
|
||||
|---|---|---|---|---|---|---|---|---|
| Blank ME | ATRA loaded ME | Blank ME | ATRA loaded ME | Blank ME | ATRA loaded ME | Blank ME | ATRA loaded ME | |
| ME 1 | 102.05±38.36 | 177.9±23.5 | 0.14±0.13 | −0.04±0.21 | 0.292±0.057 | 0.28±0.03 | 75±2 | 61±1 |
| ME 2 | 38.1±2.4 | 42.18±2.65 | 0.10±0.06 | −0.08±0.03 | 0.35±0.02 | 0.345±0.05 | 87±2 | 70±1 |
| ME 3 | 92.29±15.69 | 104.9±34.9 | 0.087±0.231 | −0.0075±0.3704 | 0.387±0.074 | 0.318±0.107 | 51±3 | 47±5 |
| ME 4 | 39.81±32.16 | 167.7±30.1 | 0.10±0.05 | −0.26±0.15 | 0.313±0.123 | 0.531±0.034 | 35±1 | 38±4 |
Note: Each value represents the mean ± standard deviation (n=3).
Abbreviations: ATRA, all-trans retinoic acid; ME, microemulsion; PDI, polydispersity index.