Fig. 1: Schematic of NIR-DIW and real-time FTIR photorheology analysis.
From: 3D printing of multi-scalable structures via high penetration near-infrared photopolymerization

a Scheme of NIR-induced DIW setup; b structures and reactions applied in NIR-DIW printing; c monitoring of NIR-induced photopolymerization by real-time FTIR rheological analysis.