TABLE I.

Summary of the usability, user-friendliness, and yield of the four presented techniques. The sterilization efficacy (%) is taken from Refs. 43–46.

	Availability	Sterilization	Protocol	Specimen loss	Cell loss
sponge	Needs to be custom made	Autoclave (>99%)	6 h	30%	37%
ecm	Commercially available	Already sterile	5 h (required working on ice)	30%	0%
geltrex	Commercially available	Already sterile	5 h (required working on ice)	30%	0%
beads	Commercially available	Ethanol (>70%)	6 h + 12 h	<10%	25%