Nano Technology Blog Blog

Nano Technology Blog

The Nano Technology Blog is the place for conversation and discussion about materials and structured products, devices, manufacturing and commercialization, and R&D. Here, you'll find everything from application ideas, to news and industry trends, to hot topics and cutting edge innovations.

Previous in Blog: DNA Switch Bridges the Gap   Next in Blog: True Black
Close
Close
Close
3 comments
Rate Comments: Nested

Nanotech Detects HIV

Posted November 29, 2006 10:00 AM

A test based on surface enhanced Raman spectroscopy (SERS) can detect a range of viruses, including influenza and HIV in 60 seconds or less. University of Georgia researchers use silver nanorods and a preferential viewing angle to get optimal signal strength. The group says the technique can detect even a single virus particle. Meanwhile, University of California, San Francisco researchers and collaborators have developed a nanodelivery vehicle for anticancer agents that has cured mice of colon cancer with a single dose.

Reply

Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Associate

Join Date: Dec 2006
Posts: 26
#1

Re: Nanotech Detects HIV

12/17/2006 10:20 PM

Does that mean we have a cure for AIDS and colon cancer?

Reply
Anonymous Poster
#2
In reply to #1

Re: Nanotech Detects HIV

06/23/2007 11:54 PM

I am no expert, but it sound's like there is a cure for colon cancer but not for HIV, it would just mean quicker detection and detection before the time it takes HIV to have a count in the bloodstream with the tests readily available now..If it can detect HIV at such low-levels, it could be able to tell how much HIV is actually in the bloodstream when somebody is on anti-retro therapy or if the anti-retro therapy completely removes HIV from the bloodstream and it's the dormant cells that re activate it, or if anti-retro therapy just reduces HIV from the blood to undetectable amounts by the testing method used now.. I have read stem cells are a promising new treatment for HIV, by inserting anti-HIV stem cells into the body and letting them multiply till they are the dominate cell so HIV wouldn't be able to kill them, therefore rebuilding your immune system and making HIV defunct but the person would still remain HIV-positive.

Reply
Anonymous Poster
#3

Re: Nanotech Detects HIV

02/16/2008 8:58 AM

Most of the Nano or newer technology for immunosensors being developed still rely on antibody-antigen recognition as basic the biological layer which is not much different from a conventional EIA or an ELISA technique. Also the fact that ELISAs are much more widely accepted , requires little expertise to conduct, is also a very low cost technique being used widespread in clinical settings . If newer technologies like the Silver Nanorods are to be acceptable, they may have to provide extremely low level of pathogen detections directly ,without any sample prepration from biological fluids like blood serum / plasma. It is doubtfull if these newer techniques can full fill all these criteria as the biological samples are difficult matrices to be directlly handled by these newer nano technology based sensors. It is one thing to work these sensors in lab setting but it is totally different when real samples are being tested.

Reply Off Topic (Score 5)
Reply to Blog Entry 3 comments

Previous in Blog: DNA Switch Bridges the Gap   Next in Blog: True Black

Advertisement