Fabrication of PLLA Scaffolds by Low-Temperature Deposition from a Ternary Polymer-Solvent System
A completely interconnected macroporous and microporous poly(l-lactic acid) (PLLA) scaffold was fabricated from a PLLA–dioxane–water ternary system by an advanced manufacturing technology called low-temperature deposition manufacturing. A proper fraction of water and PEG added into the polymer solution induces liquid-liquid phase separation and gelation. The liquid-liquid phase separation brings in a new micro morphology and gelation effect produces higher fabrication accuracy.
Zhengyi Jiang and Chunliang Zhang
X. F. Zheng et al., "Fabrication of PLLA Scaffolds by Low-Temperature Deposition from a Ternary Polymer-Solvent System", Advanced Materials Research, Vols. 97-101, pp. 2245-2248, 2010