Summary
PART 1: NON-TECHNICAL SUMMARY Cells in the body use chemical signals, called chemokines, to guide immune cells to specific locations. This guidance is essential to influence their behavior and help fight infections or maintain normal health processes. These chemical signals often take the form of gradients, meaning the concentration of the chemical signal changes across a region. Immune cells sense these gradients and follow them like a map. Thus, the ability to precisely program these gradients would enable a powerful means to instruct cell behavior. Hydrogels - soft, stretchable materia
