Synthesis of N-methacryloyl 3,4-dihydroxy-L-phenylalanine (L-DOPA) (Figure ) was performed as follows: 1.15 g (5.69 mmol) of Borax was dissolved in 30 ml of water. The solution was degassed with argon for 30 minutes, after which 0.592 g (3.0 mmol) of L-DOPA was added and stirred for 15 minutes. Then, 0.317 g (3.0 mmol) of Na2CO3 was added, and the solution was cooled to 0 °C. Subsequently, 0. with dichloromethane (DCM) and methanol (95:5). After evaporating the solvent, a white, sticky solid was obtained with a product yield of 35%. GmbH). Photocuring was carried out under an argon atmosphere in a glove box. The exposure time was 150 seconds for each spot (2.25 cm 2 ) and was carried out stepwise across the entire plate (10 cm x 20 cm).