Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

android tablet pc

Home > News > Magnetic attraction for protein separation

December 17th, 2007

Magnetic attraction for protein separation

Chinese scientists may have developed a protein separation technique to rival gel electrophoresis and ion chromatography. Through joining together iron and gold nanoparticles, they have come up with a way to isolate specific proteins from a complex mixture by simply applying a magnetic field.

Individually, iron nanoparticles and gold nanoparticles possess a number of useful properties. For iron nanoparticles, these properties include magnetism, while for gold nanoparticles they include the ability to bind with sulphur-containing thiol molecules such as cysteine, which means that various biomolecules can be attached to them.

So a combined iron and gold nanoparticle possessing both sets of properties should prove extremely useful and a number of research groups have developed versions of just such a nanoparticle. But the fabrication processes for these nanoparticles tend to be fairly complicated, usually requiring some variation of coating an iron nanoparticle with gold. Now, a team of chemists and biotechnologists from Tsinghua University, China, led by Yadong Li has come up with a much simpler process, which merely involves linking together separate iron and gold nanoparticles.


Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press


Breakthrough in ALD-graphene by Picosun technology October 1st, 2014

Novel approach to magnetic measurements atom-by-atom October 1st, 2014

Nanoparticles Accumulate Quickly in Wetland Sediment: Aquatic food chains might be harmed by molecules "piggybacking" on carbon nanoparticles October 1st, 2014

'Stealth' nanoparticles could improve cancer vaccines October 1st, 2014


'Stealth' nanoparticles could improve cancer vaccines October 1st, 2014

Stressed Out: Research Sheds New Light on Why Rechargeable Batteries Fail October 1st, 2014

New Absorber Will Lead to Better Biosensor: Biosensors are more sensitive and able to detect smaller changes in the environment October 1st, 2014

Graphene chips are close to significant commercialization October 1st, 2014


Ad-REIC vaccine: A magic bullet for cancer treatment September 30th, 2014

How things coil: Researchers discover that simulation technology designed for Hollywood can be used as a predictive tool for understanding fundamental engineering problems September 29th, 2014

Penn Team Studies Nanocrystals by Passing Them Through Tiny Pores September 26th, 2014

New NIH/DOE Grant for Life Science Studies at NSLS-II: Funding will support operation of three powerful experimental stations designed to reveal detailed structures of proteins, viruses, and more September 23rd, 2014

The latest news from around the world, FREE

  Premium Products
Only the news you want to read!
 Learn More
University Technology Transfer & Patents
 Learn More
Full-service, expert consulting
 Learn More

Nanotechnology Now Featured Books


The Hunger Project

© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE