In the present work, a novel solid phase extraction (SPE) sorbent was developed based on molecularly imprinted polymers (MIPs) immobilized on 3D-printed scaffolds using polymer networks as MIP-immobilizing layer. MIPs were produced by precipitation polymerization in acetonitrile (ACN) using methacrylic acid (MAA) as functional monomer, trimethylolpropane trimethacrylate (TRIM) as crosslinker and metergoline as model template which allows final recognition of ergot alkaloid mycotoxins. Scanning electron microscopy (SEM) and dynamic light scattering (DLS) analyses showed an average MIP particle size of 457 ± 145 nm. Functional MIP analysis revealed dissociation constants (KD) of 0.29 and 38.90 μM for high and low…