mpo100A 1cm tall 3D printed scaffold structure for biomedicine. Photo via Multiphoton Optics. The MPO 100 3D printer. Multiphoton Optics’ new TPP 3D printer features a laser wavelength in the greenA 1cm tall 3D printed scaffold structure for biomedicine. Photo via Multiphoton Optics. The MPO 100 3D printer. Multiphoton Optics’ new TPP 3D printer features a laser wavelength in the green