If yes then at what wavelength does riboflavin photocrosslink the polymer?Is riboflavin better than irgacure?
I have tried but didn't get it to work. I think it's (even) more sensitive to oxygen inhibition than Irgacure 2959. I saw it used in a publication for 2PP on a non-aqueous system that was first purged with nitrogen.
You may have better luck if you use an amine coinitiator. For reference check this paper: http://pubs.acs.org/doi/pdf/10.1021/ma001649r
Riboflavin cannot linking with gelatin. This polysaccharide does contain reactive group to react with riboflavin. in the gound or the excited states.
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