Latest Janus particles Stories

Janus Capsules Easily And Affordably Produced For First Time
2014-06-27 13:12:34

Alan McStravick for redOrbit.com - Your Universe online Representing both beginnings and endings, the Roman god Janus is signified by a figure that is a double-faced head, each looking in opposite directions. This myth of duality caused ancient Romans to worship at the altar of Janus when seeds were planted and later when it was time to harvest. As the god of gates and doors, Janus was also revered as a sign of transition between primitive life and civilization, country living and city...

Nanoparticles Mixed To Make Multifunctional Materials
2013-10-21 06:34:23

DOE/Brookhaven National Laboratory Standardized technique opens remarkable opportunities for 'mix and match' materials fabrication Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have developed a general approach for combining different types of nanoparticles to produce large-scale composite materials. The technique, described in a paper published online by Nature Nanotechnology on October 20, 2013, opens many opportunities for mixing and matching particles...

Mammalian Cells Prefer Nanodiscs Over Nanorods
2013-10-07 16:21:24

Georgia Institute of Technology For years scientists have been working to fundamentally understand how nanoparticles move throughout the human body. One big unanswered question is how the shape of nanoparticles affects their entry into cells. Now researchers have discovered that under typical culture conditions, mammalian cells prefer disc-shaped nanoparticles over those shaped like rods. Understanding how the shape of nanoparticles affects their transport into cells could be a major...

2013-08-23 10:48:08

Gold nanoparticles with special coatings can deliver drugs or biosensors to a cell's interior without damaging it Cells are very good at protecting their precious contents — and as a result, it's very difficult to penetrate their membrane walls to deliver drugs, nutrients or biosensors without damaging or destroying the cell. One effective way of doing so, discovered in 2008, is to use nanoparticles of pure gold, coated with a thin layer of a special polymer. But nobody knew exactly why...

New Technique Detects Toxic Nanoparticles In Fresh Produce, Other Foods Products
2013-08-23 08:22:21

April Flowers for redOrbit.com - Your Universe Online The use of nanomaterials for water treatment, food packaging, pesticides, cosmetics and other industrial uses has increased over the last few years. Silver nanoparticles, for example, are used by farmers as a pesticide because of their capability to suppress the growth of harmful organisms. A growing concern among scientists is that these particles could pose a potential health risk to both humans and the environment. A new study...

2013-04-29 14:20:45

In recent years, metal nanoparticles have showed great application prospect in the field of biological imaging, cancer diagnosis and treatment due to its unique optical scattering and optical absorption properties. In many metal materials, gold nanoparticles have caused concerns in the field because of its simple preparation, easy to modify advantages. However, the poor stability in physiological fluids environment and the potential toxicity of gold nanoparticles always restricts its...

2013-04-22 11:28:59

In a new study performed at the Center for Nanoscale Materials at the U.S. Department of Energy´s (DOE) Argonne National Laboratory, researchers have for the first time seen the self-assembly of nanoparticle chains in situ, that is, in place as it occurs in real-time. The scientists exposed a tiny liquid “cell” or pouch that contained gold nanoparticles covered with a positively charged coating to an intense beam of electrons generated with a transmission electron...

2012-08-29 06:59:40

By modifying the rate at which chemical reactions take place, nanoparticle catalysts fulfill myriad roles in industry, the biomedical arena and everyday life. They may be used for the production of polymers and biofuels, for improving pollution and emission control devices, to enhance reactions essential for fuel cell technology and for the synthesis of new drugs. Finding new and more effective nanoparticle catalysts to perform these useful functions is therefore vital. Now Nongjian (NJ)...

New Technique Maps Twin Faces Of Smallest Janus Nanoparticles
2011-09-27 09:31:36

New drug delivery systems, solar cells, industrial catalysts and video displays are among the potential applications of special particles that possess two chemically distinct sides. These particles are named after the two-faced Roman god Janus and their twin chemical faces allow them to form novel structures and new materials. However, as scientists have reduced the size of Janus particles down to a few nanometers in diameter — about the size of individual proteins, which has the...

Word of the Day
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'