Like a carpet for cells, micropatterned polymeric nanosheets are developed toward local cell delivery. The nanosheets direct morphogenesis of retinal pigment epithelial (RPE) cells and allow for the injection of an engineered RPE monolayer through syringe needles without the loss of cell viability. Such an ultrathin carrier has the promise of a minimally invasive delivery of cells into narrow tissue spaces.
- cell delivery
- magnetic nanoparticles (MNP)
- retinal pigment epithelium (RPE)
- tight junctions
- ultrathin films (nanosheets)