Victor Cojocaru

9 Questions 18 Answers 0 Followers

Questions related from Victor Cojocaru

Is there any research on the transition a microemulsion passes through when applied to skin and the solvents evaporate?

Please provide your opinion as well

17 March 2015 4,674 1 View

What would a Peppas n exponential coefficient smaller than 0.3 suggest?

release study of a water soluble drug from a very high viscosity hydrogel, % released is inferior to 60%.

06 March 2015 7,791 3 View

Should the transparent gel-like structures obtained for water-oil-(surfactant+cosurfactant) systems be considered microemulsions?

For microemulsions formulated using alcohols with the hydrocarbonate chain of medium length (i.e. 1-hexanol, 1-heptanol, 1-octanol), at a certain point (i.e. certain water concentration), the...

24 February 2015 9,761 6 View

What are the ways to plot a first order release kinetics?

I was wondering if you know the initial amount of drug in the donor compartment and know only the amount of drug diffused through the membrane, possible to plot a first order kinetics in order to...

26 November 2014 1,988 3 View

Does anyone know the ethanol (70%) - isopropyl myristate interfacial tension?

Just doing some research regarding the interfacial tension between different components that could be useful for formulating microemulsions.

10 August 2014 7,268 0 View

Is there a scientific approach in determining the optimal composition of a microemulsion?

Other than constructing phase diagrams at different Surfactant:Cosurfactant ratios for different oil:surfactants ratios, is there a more scientific approach in predicting the optimal composition...

16 May 2014 372 6 View

Can anyone help me with articles regarding assay methods for sodium diclofenac?

I am interested in determining the amount of sodium diclofenac dialysed in a release study experiment. I am trying to avoid HPLC methods and I am oriented towards spectrophotometric methods....

27 March 2014 6,741 1 View

Can anyone recommend me some phase diagram software?

Can anyone recommend me a free software that can help me to graphically represent a pseudo-ternary or binary phase diagram? And perhaps some written or video tutorial on how to use the software? I...

19 March 2014 9,057 7 View

Can anyone help me with cosurfactants for pharmaceutically accepted microemulsions?

Can anyone help me with some material regarding the toxicity/acceptability of surfactants, especially, cosurfactants? For my current research I'm using 1-octanol as it's less irritating than...

19 March 2014 3,902 7 View