New Implants Defy Necessity of Brain Surgery Against Cancer
Microscopic wireless electronics that self-navigate to diseased brain tissue could eliminate the need for surgery when treating tumors and neurological conditions. Massachusetts Institute of Technology researchers demonstrated the technology in mice, showing how tiny devices injected into the bloodstream can autonomously locate target regions and deliver electrical stimulation without human guidance. These implants are fused with immune cells before injection, allowing them to slip past the body's defenses and cross the blood-brain barrier intact. Each device measures roughly one-billionth of a rice grain's length, built from layered organic semiconducting polymers positioned between metallic components to create an electronic structure. Scientists…

