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Doctors Are Outsmarting Cancer With Tiny, High-Tech Tools

These trial drugs are 1/1000th the width of a human hair, gentle on the body, and remarkably affordable

Choosing the right drug to fight cancer is extremely difficult, and there’s a big price to pay for making the wrong choice. All cancer drugs have side effects—many weaken the body—and time spent taking the wrong drug is time that allows the cancer to grow and spread unchecked. Fortunately, chemical engineers have developed a method to combat this, sending nanoscale-sized particles packed with potential drug options inside patients’ tumors to test out which one will be the most effective, with the least amount of harm.

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