New Nanoscale Cancer Buster Wiggles Its Way to Tumors
May 7, 2008 9:10 AM
comment(s) - last by
Scientists fish for tumors with nanoworms.
Another nanoscale anti-cancer device has arrived on the growing scene. Similar to MIT's
, the new treatment would involve a sticky "nanoworm." The particles, developed jointly by scientists at the Universities of California at San Diego and Santa Barbara along with MIT, resembles a gummi worm made of small spheres.
The worms are made from spherical nanoparticles of iron oxide, joined together and coated with a polymer derived from dextran. Each worm consists of eight nanoparticles and measures approximately 30 nanometers in length. That makes them about three million times smaller than their earthworm brethren.
There are multiple advantages in using the new nanoworms over single particle approaches for locating and delivering cancer destroying drugs directly to tumors. The structure allows the worms to slip through the bloodstream with less opposition than single particles, which are more easily detected and driven out by the body's immune system functions. This keeps them in the body longer, giving them more time to find targets.
Another advantage is the amount of anti-cancer toxins a single worm can carry versus a single particle. Obviously by having more surface area, more toxins could be attached, thus serving target tumors a more lethal dose. Not only could more drug be attached, but more of the peptide which causes the particles to stick to the tumors, called F3, can share the surface, making them more likely to lock on when a tumor is located.
Yet another is that the worms' construction material, iron oxide, has the quality of being superparamagnetic, which causes them to light up an MRI scan in areas of suspicion. Even if only one of the worms finds a certain target, it is more easily detected than single superparamagnetic particles, like MIT's, because of its size.
While the results of the group's work are impressive, they are still researching different ways to attach anti-cancer drugs to the nanoworms, as well creating special chemicals that will allow administers to target specific types of tumors. Once a tethering method is found, it could allow the worms to be even more lethal to cancer cells than MIT's nanoparticle or
Rensselaer Polytechnic's nanotube
This article is over a month old, voting and posting comments is disabled
RE: The Biggest Thing...
5/7/2008 9:37:15 AM
Argh you beat me to it. ; )
RE: The Biggest Thing...
5/8/2008 9:11:49 AM
Folding At Home studies more about how proteins fold and misfold (Alzheimer's, Parkinson's). Rosetta At Home is more into figuring out how to efficiently catalog folded protein structures (cancer, malaria, HIV) [and they are into using computers to create designer proteins for drug delivery].
"My sex life is pretty good" -- Steve Jobs' random musings during the 2010 D8 conference
More Remote Controlled Cancer Killers on the Way
December 11, 2007, 10:10 AM
Remote Control Cancer Killers
November 20, 2007, 9:12 AM
Creationists are Mad About Google Doodle Depicting Evolution
November 24, 2015, 8:48 PM
DHS and TSA: Whoops, We Missed That 73 Airport Employees May be Terrorists
November 19, 2015, 2:16 PM
Star Wars Spinoff Film "Rogue One", Theme Park Attractions Announced
August 17, 2015, 12:20 PM
SpaceX Falcon 9's Seventh Supply Mission to ISS Ends w/ Fiery Stage 1 Explosion
June 28, 2015, 1:10 PM
Cool Science Video: Glowing Millipede Prowls the Nevada Desert
May 18, 2015, 12:00 PM
Newly Discovered Costa Rican Glass Frog is Kermit's Doppelgänger
April 22, 2015, 11:26 AM
Latest Blog Posts
Sceptre Airs 27", 120 Hz. 1080p Monitor/HDTV w/ 5 ms Response Time for $220
Dec 3, 2014, 10:32 PM
Costco Gives Employees Thanksgiving Off; Wal-Mart Leads "Black Thursday" Charge
Oct 29, 2014, 9:57 PM
"Bear Selfies" Fad Could Turn Deadly, Warn Nevada Wildlife Officials
Oct 28, 2014, 12:00 PM
The Surface Mini That Was Never Released Gets "Hands On" Treatment
Sep 26, 2014, 8:22 AM
ISIS Imposes Ban on Teaching Evolution in Iraq
Sep 17, 2014, 5:22 PM
More Blog Posts
Copyright 2016 DailyTech LLC. -
Terms, Conditions & Privacy Information