Abstract :
Secang wood (Caesalpinia sappan L.) contains brazilin including
isoflavonoids which act as antimicrobials (against skin bacteria) as well as
antioxidants. Nano technology increases surface area, better stability, reduces skin
irritation, protects against degradation, and good drug delivery. Nano emulsion
preparations can help permeability of the drug on the membrane surface.
Nanoemulgel preparations can provide stability and good drug release compared
to mixing drugs directly in a gel base. The purpose of this study was to determine
the effect of different concentrations of gelling agents CMC-Na and concentration
of CMC-Na gelling agent can produce the best nanoemulgel preparations.
Nanoemulsion is made from isopropyl myristate oil phase, tween 80 surfactant
and polyethylenglycol co-surfactant. Nanoemulsion formulations were tested by
measurement of% transmittance by UV-V spectrophotometry at a wavelength of
650nm. Nanoemulgel is made from nano emulsions on the basis of CMC-Na at
concentrations of 3%, 4%, and 5%. The test results percent transmittance of
71.86%. The results of physical quality and stability tests of the secang
nanoemulgel wood preparations showed an influence on the physical properties of
adhesion, dispersion and viscosity, the greater the concentration of CMC-Na
gelling agent in nanoemulgel preparations, the greater the adhesion and viscosity,
while the spread of power is smaller. Concentration of CMC-Na gelling agent that
produces the best secang nanoemulgel (Caesalpinia sappan L.) is in a formula
with a stable 5% CMC-Na concentration by freeze-thaw testing .