#2 A cancer-killing computer chip could live in a patient's bloodstream

It’s a "microfluidic" chip, covered in long strands of DNA. The DNA is sort of programmed to detect and pick the cancerous cells, which can be used to study first, and if there is need to launch an attack on these cells, more microfluidic chips can be put into blood stream.  

#1 You can store data in DNA

Gautim Naik writes in the Wall Street Journal about the eclectic bits of data scientists have already stored on DNA strands. The scientists encoded in DNA an audio clip of Martin Luther King Jr.'s "I Have a Dream" speech, a photograph, a copy of Francis Crick and James Watson's famous "double helix" scientific paper on DNA from 1953 and Shakespeare's 154 sonnets. They later were able to retrieve them with 99.99 percent accuracy. So forget silicon ships, the next revolution of data storage can come from bio chips.

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