Hyaluronic Acid is labeled with both biotin and fluorescein, Ex/Em wavelength 494/518 nm. Purity: >95% lyophilized powder. Degree of substitution: 1 mol % substitution for each dye and at least one biotin and one fluorescein molecule per polymer. Literature: 1) Hyaluronic acid based scaffolds for tissue engineering-A review, Carbohydrate Polymers 2013, 92(2):1262- 1279.
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