Researchers at University of British Columbia (UBC) Okanagan have introduced a newer Bioink which is much cheaper and is being considered the future of 3D Bioprinting for scaffolds. The gelatin methacrylate (GelMA) based bioink was created for two types of hydrogels: Cold-water fish skin and Cold-soluble gelatin, out of which Cold-Soluble was selected as the best candidate.
Source: https://news.ok.ubc.ca/2017/09/12/better-cheaper-bio-ink-may-be-used-to-create-artificial-organs/