Figure 7.
ATR - FTIR subtraction spectra: PEGMA hydrogel on SU-8 surface:
a) Subtraction spectrum of PEGMA (reference spectrum of initiator HCPK bound SU-8 surface).
b) Polymerized PEGMA hydrogel (99%PEGMA+1% HCPK)
c) PEGMA monomer (Mn=475)
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