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Wireless system can power devices inside the body

news.mit.edu

21–30 of 42 posts

Re: Wireless system can power devices inside the body

#23
post #7

Earlier quoted context omitted.

I'm waiting for someone to invent the implantable chip that converts blood sugar into heat/light purely with the intention of wasting that energy. Grab enough power to monitor blood sugar, to make sure you aren't putting someone into a coma, but otherwise just try to burn an extra few hundred calories a day.

That's interesting. Seems like a low tech solution would be to give blood every day. I wonder if somebody has already invented the blood donation diet.

Problem with that is that we don't replenish it fast enough for that to work. Maybe with plasma donations but I'm not sure there either.

Re: Wireless system can power devices inside the body

#24

Plenty of nefarious applications for this. The range alone blows away existing RFID designs, which will make it the preferred "chipping" technology for surveillance states everywhere.

Or fast food restaurants embedding tracking devices in their food... That'll be fun having to review privacy policies at every restaurant you eat at.

Finally, a use case for smart toilets! Imagine getting a bonus on your Taco Bell™ Rewards Card™ for not...expelling any Taco Cabana chips.

Re: Wireless system can power devices inside the body

#25
post #17

>The implants are powered by radio frequency waves, which can safely pass through human tissues. In tests in animals why animals? couldn't the researchers just swallow that "prototype about the size of a grain of rice" themselves and/or get several paid volunteers?

Because animals have no say and they don't have to pay the animals. Once it's done the animals will just be euthanized.

Re: Wireless system can power devices inside the body

#26
post #7

Earlier quoted context omitted.

I'm waiting for someone to invent the implantable chip that converts blood sugar into heat/light purely with the intention of wasting that energy. Grab enough power to monitor blood sugar, to make sure you aren't putting someone into a coma, but otherwise just try to burn an extra few hundred calories a day.

Why waste this energy? Couldn’t they devise a way to mine bitcoin with it? :)

orgasic

Re: Wireless system can power devices inside the body

#27
The main thing I got from the MIT article is this:

"This system relies on an array of antennas that emit radio waves of slightly different frequencies. As the radio waves travel, they overlap and combine in different ways."

This is known as constructive interference, pretty nifty to see it used in this context. The range has been increased from 10 cm to 1 meter since the paper I co-authored on this subject. Impressive!

These kinds of applications have also been a long time coming. With IoT devices and NFC readers looming around the corner, I think it is likely that we will see some pretty innovative medical inventions. Likewise, as mentioned by NKosmatos, we need to take the security aspect very seriously. Some of these NFC devices are programmable, and should defend against attacks that could lead to events such as withholding life-saving medicine or misreporting biometrics.

For reference, check out this paper I co-authored:

Suitability of NFC for Medical Device Communication and Power Delivery (2007)

https://ieeexplore.ieee.org/document/4454171/

And if you're interested in an early paper about RFID-delivered viruses, check out this by Tanenbaum et al.:

http://www.rfidvirus.org/papers/percom.06.pdf

Re: Wireless system can power devices inside the body

#29
post #7

Earlier quoted context omitted.

I'm waiting for someone to invent the implantable chip that converts blood sugar into heat/light purely with the intention of wasting that energy. Grab enough power to monitor blood sugar, to make sure you aren't putting someone into a coma, but otherwise just try to burn an extra few hundred calories a day.

Then you need to radiate heat somewhere. If you heat up the blood the body will spend less energy keeping warm leading to no benefit. If you generate a lot of heat... it goes really bad.

Easy, simply install a venting port in the patient.

Re: Wireless system can power devices inside the body

#30
post #7

How much energy could a device extract from blood sugar?

I'm waiting for someone to invent the implantable chip that converts blood sugar into heat/light purely with the intention of wasting that energy. Grab enough power to monitor blood sugar, to make sure you aren't putting someone into a coma, but otherwise just try to burn an extra few hundred calories a day.

Alternatively (and arguably much less complex and much cheaper): 1) eat less, 2) exercise
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