Radiation absorbing capsule

    The idea is to develop a soluble capsule capable of removing radioactive substances from liquid, rendering it safe to drink.
    The capsule will be created using metal oxide nanoparticles, which will react with radioactive substances. This will turn the capsule into a kind of "reverse tea bag", drawing the heavy metals out of the solution.
    Once the process is complete, the capsule will be removed and discarded and the liquid consumed safely.