Each year, an estimated 175,000–250,000 children worldwide are diagnosed with cancer, according to Childhood Cancer International. Cases of childhood cancer in developing countries may be substantially underreported, due to inadequate medical knowledge.

While your smartphone screen keeps getting bigger, technology to fight cancer keeps getting smaller, the thing in the fight against cancer. The science, known as nanotechnology, uses organic nanoparticles with tiny robots can be deployed inside a cancer patient.