All Articles Tagged As: quantum dots

Let there be light: Teaching magnets to do more than just stick around (8/23/2009)

Researchers led by a University of Washington chemist have found a way to train tiny semiconductor crystals, called nanocrystals or quantum dots, to display new magnetic functions at room temperature using light as a trigger. ...> Full Article

Controllable double quantum dots and Klein tunneling in nanotubes (5/16/2009)

Researchers from the Kavli Institute of NanoScience in Delft are the first to have successfully captured a single electron in a highly tunable carbon nanotube double quantum dot. This was made possible by a new approach for producing ultraclean nanotubes. Moreover, the team of researchers, under the leadership of Spinoza winner Leo Kouwenhoven, discovered a new sort of tunneling as a result of which electrons can fly straight through obstacles. The results of the research were published by Nature Nanotechnology on April 5, 2009. ...> Full Article

Quantum dots and nanomaterials: Ingredients for better lighting and more reliable power (3/16/2009)

Two energy-industry companies are investing in research at Arizona State University's Advanced Photovoltaics Center. Researchers are exploring uses of nanomaterials and, specifically, "quantum dots," in technology to more effectively harness solar light for conversion into electrical power and to produce lighting devices that are more durable and energy-efficient that current products. In addition, this next generation of lighting devises conceivably could be fashioned into an almost unlimited variety of customized shapes. ...> Full Article

Researchers eye risks of quantum dots (2/3/2009)

A team of Rice researchers has been working to discover the health risks of quantum dots, molecule-sized semiconducting nanocrystals that are generally composed of heavy metals surrounded by an organic shell. ...> Full Article

A new material could act as a nanofridge for microchips (10/9/2008)

New material could be used to manufacture smaller and faster computers ...> Full Article

Researchers Develop Nano-Sized 'Cargo Ships' to Target and Destroy Tumors (9/14/2008)

Scientists have developed nanometer-sized 'cargo ships' that can sail throughout the body via the bloodstream without immediate detection from the body’s immune radar system and ferry their cargo of anti-cancer drugs and markers into tumors that might otherwise go untreated or undetected. ...> Full Article

Gene silencer and quantum dots reduce protein production to a whisper (6/24/2008)

Researchers have succeeded in using nanotechnology known as quantum dots to silence genes. Their technique is 10 to 20 times more effective than existing methods for injecting the gene-silencing tools, known as siRNA, into cells. ...> Full Article

Research Measures Movement of Nanomaterials in Simple Model Food Chain (6/2/2008)

New research shows that while engineered nanomaterials can be transferred up the lowest levels of the food chain from single celled organisms to higher multicelled ones, the amount transferred was relatively low and there was no evidence of the nanomaterials concentrating in the higher level organisms ...> Full Article

Scientists discover new method of observing interactions in nanoscale systems (1/18/2008)

Scientists have used new optical technologies to observe interactions in nanoscale systems that Heisenberg's uncertainty principle usually would prohibit, according to a study published Jan. 17 in the journal Nature. ...> Full Article