In August, practical training of Dr. Chen Si at Lithoz GmbH continued with printing gyroid scaffolds using 1393B3 borate bioactive glass reinforced with up to 32 vol% mesoporous silicate-based bioactive glass nanoparticles (MBGNs). The fabricated structures included cubes for compression testing, bars for bending tests, and smaller cubes for additional materials science and biological evaluations.

Later in the month, with a kind support of Dr.-Ing. Serkan Nohut, Mr. Marc Hofbauer and Mr. Sebastian Geier from Lithoz GmbH, Dr. Chen Si began printing newly designed architectures that mimic natural cortical and cancellous bone.

Since these structures were new, the team initially applied printing parameters, optimized for gyroid scaffolds, but encountered detachment issues from the building platform. After testing various strategies including foil interlayers, adjusting exposure energy, adhesive layer thickness, and using primer coatings, they finally succeeded by combining the foil with more extreme adhesive layer parameters. This enabled the team to stably fabricate both, the cortical bone–like and the cancellous bone–like structures, marking a significant step forward in developing biomimetic glass scaffolds.