The innovation, reported in the Nov. 15 online issue of Advanced Materials, could lead to the improved diagnosis and targeted treatment of cancer.
https://news.mit.edu/2007/nanodrugs-1120

“Recently, there has been increasing interest in developing methods where drug release from the injected or implanted delivery system can be controlled by an operator, perhaps via a remote device. Ideally, such systems could determine the time, duration, dosage, and even location of drug release, and could allow remote, non-invasive, repeatable, and reliable switching of therapeutic agent flux.² These devices are beneficial to patients across a wide spectrum of ages, since they enable drug release profiles tailored to the specific therapy.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3500532/

PLGA-Based Drug Delivery Systems for Remotely Triggered Cancer Therapeutic and Diagnostic Applications:
https://www.frontiersin.org/articles/10.3389/fbioe.2020.00381/full