Tag Archives: healthcare

Nanotechnology: The Tools of Tomorrow

I’m certain some of you remember back to an old ‘Magic School Bus’ episode where Ms. Frizzle shrinks the class on an adventure to see Arnold’s digestive system. While the method would probably not be practical, the idea of using micro-sized machinery to enter the human body system definitely is.

Enter: Nanobots!

Molecularpropeller

Molecular Nanotechnology. Source: Wikimedia Commons (by: Petr Král)

In the past, ideas like the PillCam was one of the pioneers for nanotechnology in medicine. In the current age,  nanotechnology is the current fad with new innovations coming out each year. By being able to send robotics one-thousandth the size of your hair to do complex tasks, we pave a new path for science. However, what’s more amazing are the applications that this futuristic technology can bring to healthcare.

 

Using Nanobots to Battle Cancer

Dr. Ido Bachelet of Israel developed nanobots made entirely of DNA which he said it could be used to combat cancer. These nanobots would follow the traits of the immune system and actively find and destroy cancer cells, but would not harm able-bodied cells.

The DNA nanobots model after white blood cells and flow through the bloodstream, looking for signs of cancer by examining proteins on the surface of cells. If cancerous surface proteins are found, the nanobots deliver a lethal dose of drugs and effectively kill the cell. After, these nanobots will naturally degrade as DNA.

Results have already been found as these nanobots successfully eliminated the cancerous cells out of a mixture of healthy and cancer cells, while leaving the healthy cells unharmed. Human trials are expected to be underway.

Here is an interesting video of Dr. Bachelet talking about his research:

YouTube Preview Image

‘DNA Origami’ – A New Drug Delivery System

Another application of nanotechnology is the creation of ‘DNA origami’ by Dr. Paul Rothemund of Caltech. His invention allows for nucleotides to make complex shapes for many purposes. One such purpose is a drug delivery system, which has many benefits as it’s of the molecular scale.

drug delivery

Source: https://www.youtube.com/watch?v=M9OAKXlPsDw (by: Emmanuel Ho)

Kurt Gothelf of Denmark has made a box out of DNA origami in which he hopes would be able to store drugs and sufficiently deliver them inside a cell.

A team of scientists in China has also tested DNA origami as a carrier for drug delivery for cancer therapy as being both efficient and safe.

This is only the tip of what nanotechnology can provide for us. Besides healthcare, it also has significant research in energy, cleaning water systems, warfare (such as stopping wounds immediately), etc.

With this fast expanding industry on the horizon, we’ll surely see the problems of today become something of the past.

 

Henry Liu