HOC-Store › PDO Monolayer requiring Feeder Cells Image 1 of 1 PDO Monolayer requiring Feeder Cells from $3.22 Alternative to our colonoids which grow in 2D monolayers on collagen IV, some cell types instead require feeder cells Well Size: Select Well Size 6-well 12-well 24-well 48-well 96-well Add To Cart Added! Alternative to our colonoids which grow in 2D monolayers on collagen IV, some cell types instead require feeder cells