Mars shelter problem can be solved with engineered yeast, gelatin and sand: paper

Researchers in Hong Kong develop low-energy ‘living’ building material for quick, cheap construction

Scientists in Hong Kong say they have developed a quick and low-cost “living” building material made from genetically engineered yeast, gelatin and sand that can be 3D printed under conditions simulating the Martian environment.

Their study, published online last month in Chem Circularity, an international Cell Press journal, describes a biological binder that holds granular materials together.

The optimised formulation had a compressive strength of about 12 megapascals (MPa), around 170 per cent higher than that of the control formulation and within the range of conventional building materials.