*2.6. Analytical Methods*

The chromatographic experiments (HPLC-UV) were performed by Agilent instrument 1260 Series. 2 Waters UltraHydrogel columns in series (UH 500, 10 µm, 7.8 × 300 mm and UH250, 6 µm,

7.8 × 300 mm) were eluted with microfiltrated water milliQ PBS at pH 7.2, at 0.8 mL/min flow/rate. 20 µL injection was used. UV detector was set at 200 nm.
