New Light Sensitive Nanoparticles Deliver Meds Efficiently


beautiful young woman with sun shape in sunscreenGood day and welcome to Health Tech Weekly, the show on technology that helps create a healthier you! I’m your host Jamie Davis, the Podmedic. Before we get into this week’s health tech item, make sure you head over to our site at for links to everything covered in this episode, contact information and more. Also, Health Tech Weekly is a proud member of the Tech Podcast Network, if it’s tech it’s here at

Light Triggered Medication Delivery

This week on Health Tech Weekly I bring you a look at a new technology that could revolutionize the way drugs are selectively delivered in the body. Imagine getting an injection once a month that will slowly dose you with a drug all month long. How do you know how much drug you get or need? You dial it in directly with a special “drug releasing” light.

This is what researchers at UC San Diego say they have developed. They developed an inexpensive way to use nano-particles infused with drugs in a water solution that when subjected to near-infrared light (NIR) become selectively permeable. That means that some of the drug leaks out into the surrounding tissues.

More Light, More Medication Delivered

How much drug depends on how long and how intense the infrared light is but you can see the potential to increase or decrease dosing as easily as setting a timer on a light. This could be used to deliver targeted drugs to a particular part of the body or release something slowly to the entire body.

One potential use cited in the article is to embed sunscreen in the polymers and as you get more sunlight, you release more sunscreen to the skin layers. It’s truly amazing and the applications are nearly boundless. I’ll bring you more on this as researchers continue to develop this technology.


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That will wrap up this episode of Health Tech Weekly. Make sure you follow up over at out website,, for more information on this and all of our episodes. There are additional resource links, links to trusted resources for living a healthier lifestyle and more. If you have a comment on this week’s episode please get back in touch with me either over at in comment links for each article or shoot me an email at

I’m your host Jamie Davis, the Podmedic. I’ll be back soon with more health technology for you. In the meantime, remember that improving health takes small, simple steps that over time all add up to a healthier you. Why don’t you take a healthier step today?

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