Latest Nanoparticle Stories

2013-07-26 18:41:05

Article in the journal 'Applied Physics Letters' shows how to boost performance for commonly used devices The mineral molybdenum disulfide (MoS2), which, when solid, behaves in many ways like grease, has semiconducting properties that make it a promising alternative to silicon or graphene in electronic devices. It also strongly absorbs visible light, and so it has been widely employed in light-sensing photodetectors, which are used in a wide range of technologies, such as environmental...

Blood Clotting With Gold Nanoparticles
2013-07-26 10:23:00

Rebekah Eliason for redOrbit.com - Your Universe Online MIT researchers have developed an exciting new use for gold nanoparticles. Controlled by an infrared laser, the particles can be used to turn blood clotting on and off. This could be especially useful to doctors who are trying to control clotting during surgery and could promote faster, safer healing after surgery. Using blood thinners is the only way doctors can currently control the body's natural clotting mechanism. This is...

Making Water Droplets Dance
2013-07-23 04:59:10

[ Watch the Video: Magnetic Droplets on a Superhydrophobic Surface ] Enid Burns for redOrbit.com - Your Universe Online Scientists are experimenting with non-dissapative droplet patterns to study reversible switching between static and dynamic self-assembly. Researchers from Aalto University and Paris Tech studied water droplets containing nanoparticles on a strong water repellent surface to observe the self-assembly process. A video demonstrating the mesmerizing phenomena was posted...

Record Broken By Stanford Scientists For Thinnest Light-absorber
2013-07-18 13:12:21

Stanford University Stanford University scientists have created the thinnest, most efficient absorber of visible light on record. The nanosize structure, thousands of times thinner than an ordinary sheet of paper, could lower the cost and improve the efficiency of solar cells, according to the scientists. Their results are published in the current online edition of the journal Nano Letters. "Achieving complete absorption of visible light with a minimal amount of material is highly...

2013-07-10 15:59:10

Researchers have developed a concept to potentially improve delivery of drugs for cancer treatment using nanoparticles that concentrate and expand in the presence of higher acidity found in tumor cells. The concept involves using nanoparticles made of "weak polybases," compounds that expand when transported into environments mimicking tumor cells, which have a higher acidity than surrounding tissues. The researchers used sophisticated modeling to show how the particles would accumulate in...

2013-07-09 22:54:58

The approach points the way toward new ways to silence malfunctioning genes Silencing genes that have malfunctioned is an important approach for treating diseases such as cancer and heart disease. One effective approach is to deliver drugs made from small molecules of ribonucleic acid, or RNA, which are used to inhibit gene expression. The drugs, in essence, mimic a natural process called RNA interference. In a new paper appearing today online in the journal, ACS Medicinal Chemistry...

2013-07-08 10:57:46

By designing droplets using electricity, researchers have opened new possibilities in physics. This technique could possibly be used for everything from extracting oil from wells to creating makeup and food. You've seen Hollandaise sauce or mayonnaise that has separated, or that shiny layer of oil that forms on top of skin cream. This mixture of water and oil is called an emulsion, but it can be difficult to keep emulsions from separating. A special substance called an emulsifier is used...

Coveted Nanocrystal Process Simplified
2013-06-25 12:29:07

Helmholtz-Zentrum Dresden-Rossendorf A formation mechanism of nanocrystalline cerium dioxide (CeO2), a versatile nanomaterial, has been unveiled by scientists from the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) and the University of New South Wales in Sydney, Australia. The research results were published in the scientific journal Chemistry – A European Journal. This finding potentially simplifies and alleviates the existing synthetic processes of nanocrystalline CeO2 production....

Word of the Day
  • A 'bachelor seal'; a young male seal which is prevented from mating by its herd's older males (mated bulls defending their territory).
This comes from the Russian word for 'bachelors.'