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.
Suggest me the dye not fade upon UV exposure
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