Fig. 1: PGmatrix 3D scaffolding provides in vivo like microenvironment for cells, allows free-diffusion of nutrients, growth factors, small molecules, drugs and antioxidants (i.e, anthocyanins), and serves as an oxygen buffer.
From: Advances in 3D peptide hydrogel models in cancer research

Sample image of cell spheroids physiologically formed in 3D PGmatrix culture.