article_snippet: The stem cells are cultivated in a nutrient broth, allowing The stem cells to proliferate 30-fold.
article_snippet: Next The stem cells are combined with an . elastic collagen and attached to Velcro 'anchor points' in a culture .
article_snippet: Between the anchor points, The stem cells self-organise into chunks of .
article_snippet: First, stem cells - which have the power to turn into any .
article_snippet: Next, The stem cells are incubated in a .
article_snippet: ‘broth’ until The stem cells multiply many times over, creating a sticky .