Ecoflex-hydrogel bilayer soft robot for pH-controlled drug protection and delivery

) nanoparticles within the silicone matrix further allows remote, non-invasive actuation under external magnetic fields. The platform exhibits excellent thermal stability at physiological temperature (36.5 °C) and demonstrates selective drug release under alkaline conditions representative of the intestinal microenvironment. Repeated pH cycling confirms robust structural integrity and highly reversible actuation over multiple cycles. Collectively, this work establishes the silicone-hydrogel bilayer soft robot as a versatile, magnetically actuated, pH-responsive drug delivery system with significant potential for precision cancer therapy.