News tagged with cadmium selenide

Nanomedicine: Quantum dots appear safe in pioneering study on primates

A pioneering study to gauge the toxicity of quantum dots in primates has found the tiny crystals to be safe over a one-year period, a hopeful outcome for doctors and scientists seeking new ways to battle diseases ...

Nanotechnology / Bio & Medicine

created May 20, 2012 | popularity 4.3 / 5 (3) | comments 8 | with audio podcast

Quantum dots brighten the future of lighting

(Phys.org) -- With the age of the incandescent light bulb fading rapidly, the holy grail of the lighting industry is to develop a highly efficient form of solid-state lighting that produces high quality white ...

Nanotechnology / Nanomaterials

created May 08, 2012 | popularity 4.8 / 5 (8) | comments 2 | with audio podcast

Engineers discover nanoscale balancing act that mirrors forces at work in living systems

(PhysOrg.com) -- A delicate balance of atomic forces can be exploited to make nanoparticle superclusters that are uniform in size---an attribute that's important for many nanotech applications but hard to ...

Nanotechnology / Nanophysics

created Aug 23, 2011 | popularity 4.4 / 5 (11) | comments 5 | with audio podcast

Good vibrations: New atom-scale products on horizon

The generation of an electric field by the compression and expansion of solid materials is known as the piezoelectric effect, and it has a wide range of applications ranging from everyday items such as watches, ...

Nanotechnology / Nanophysics

created Aug 23, 2010 | popularity 4.5 / 5 (15) | comments 8 | with audio podcast

Let there be light: Teaching magnets to do more than just stick around

(PhysOrg.com) -- That palm tree magnet commemorating your last vacation is programmed for a simple function - to stick to your refrigerator. Similarly, semiconductors are programmed to convey bits of information small and ...

Nanotechnology / Nanophysics

created Aug 20, 2009 | popularity 4.8 / 5 (6) | comments 3

Cadmium selenide quantum dots degrade in soil, releasing their toxic guts

Quantum dots made from cadmium and selenium degrade in soil, unleashing toxic cadmium and selenium ions into their surroundings, a University at Buffalo study has found.

Nanotechnology / Bio & Medicine

created Jul 18, 2011 | popularity 5 / 5 (5) | comments 4 | with audio podcast

Sunny Record: Breakthrough for Hybrid Solar Cells

German scientists at the Department of Microsystems Engineering (IMTEK) and the Freiburg Materials Research Center (FMF) have succeeded in developing a method for treating the surface of nanoparticles which ...

Nanotechnology / Nanomaterials

created Feb 02, 2010 | popularity 3.8 / 5 (11) | comments 3 | with audio podcast

Defining the Design Rules for Targeted Nanoparticles Used To Image Tumors

One of the challenges of using nanoparticles for imaging tumors during surgery is that there needs to be a tradeoff between the number of nanoparticles that target a tumor and the rapid clearance of any unbound nanoparticles ...

Nanotechnology / Bio & Medicine

created Feb 19, 2010 | popularity not rated yet | comments 0 | with audio podcast

Flares on the move: Nanoparticle test kit shows how nanoparticles of different size disperse in tumor tissue

(PhysOrg.com) -- Nanoparticles play a significant role in the development of future diagnostic and therapeutic techniques for tumors, for example as transporters for drugs or as contrast agents. Absorption ...

Nanotechnology / Bio & Medicine

created Jan 11, 2011 | popularity not rated yet | comments 0 | with audio podcast

Bristly Spheres as Capsules

(PhysOrg.com) -- Amphiphilic molecules, which have one water-friendly (hydrophilic) end and one water-repellant (hydrophobic) end, spontaneously aggregate in aqueous solutions to make superstructures like ...

Chemistry / Polymers

created Mar 06, 2009 | popularity 3 / 5 (1) | comments 0