I dissolved methacrylated hyaluronic acid as 1, 3 and 5% in water (in dark and covered bottle) and added Irgacure-2959 to the solution. My problem is when I make the 3 and 5%, they become like gel and not be like solution. I have the same problem when I store the 1% refrigerator and so can't use them for molding, although in articles they are used.
How I can make them like a solution?
Bae Hoon Lee
The viscosity of HAMA solutions depends on the molecular weight of HAMA. My suggestion is to use HAMA with a low molecular weight that could become a solution at concentrations of 1 - 3. In general, 5% of HAMA is very viscous, regardless of its molecular weight.
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