Nanoparticle News articles from August 2004

Nanoparticle News archives from August 2004

ELECTRONICS AND OPTOELECTRONICS: Blinking of Quantum Dots Investigated.
August 1, 2004... By conducting rapid, inexpensive measurements on large numbers of quantum dots - such as chemically synthesized dots suspended in liquid in a vial - researchers from the University of Chicago are gaining a better understanding of the blinking...

GaN Nanowire Growth Controlled.
August 1, 2004... Berkeley researchers have been able control the direction in which a gallium nitride nanowire grows for the first time, an advance that brings the scientists "within months" of building a GaN nanowire-based optoelectronic device. "Our...

GE Constructs Carbon Nanotube Diode.
August 1, 2004... GE Global Research has developed what it calls the world's best performing diode built from a carbon nanotube, which could enable smaller and faster electronic devices with increased functionality. "Just as silicon transistors replaced old...

BIOTECHNOLOGY NEWS: Quantum Dots Target, Image Cancer Cells.
August 1, 2004... In step towards using nanoparticles to treat cancer and other diseases in humans, Emory University scientists have simultaneously targeted and imaged cancerous tumors using luminescent quantum dot nanocrystals. The quantum dots were...

COMMENTARY: Nano Doesn't Always Mean Different.
August 1, 2004... Here's a question for you. Which words describe the behavior of materials at the nanoscale: (a) unusual, extraordinary or (b) conventional, common. Sorry for insulting your intelligence. The nanoscale - the realm of quantum behavior and...

ENERGY AND ENVIRONMENT: Photocatalytic Device Cleans Air Inside Car.
August 1, 2004... NanoTwin Technologies (Salem, NH) has introduced a dashboard accessory based on photocatalytic nanotechnology that can purify the air inside the passenger compartment of any motor vehicle. Tradenamed the NanoBreeze Car Air Purifier, the...

CHARACTERIZATION AND PROCESSING: Method Avoids Hazards in Nanosphere Production.
August 1, 2004... Typically, making metallic nanospheres is a hazardous process, but researchers at the National Institute of Standards and Technology (NIST) and the University of Maryland say they have invented a safe method and apparatus to produce the...

Device Measures Chip Films.
August 1, 2004... NIST researchers and their IBM collaborators have developed a compact, high-throughput, and quantitative measurement tool to assess the mechanical properties of nanoporous insulating thin films used on semiconductor chips. New low...

'Nanosprings' Buckle Like Conventional Springs.(Brief Article)
August 1, 2004... A team led by Lawrence Bottomley in Georgia Tech's School of Chemistry and Biochemistry and Jonathon Colton in the School of Mechanical Engineering has found that the mechanical response of a multi-walled carbon nanospring is remarkably similar...

INDUSTRY NEWS: Firms Partner to Produce Displays.(Brief Article)
August 1, 2004... Applied Nanotech, Inc., a subsidiary of Nano-Proprietary, and SouthWest NanoTechnologies (SWeNT), Inc., a technology spin-off of the University of Oklahoma and ConocoPhillips, have entered into a strategic partnership. Through the...

WHO'S WHO IN NANOTECH: Ferrotec VP Sees Opportunities for Magnetic Fluids.(Ferrotec USA Corp.)(Interview)
August 1, 2004... Barry Moskowitz, Vice President and General Manager of Vacuum Products for Ferrotec USA Corp., has spent most of his 20-year career with the company, previously known as Ferrofluidics Corp. He received a BS degree in Biomedical Engineering in...

NEWS BRIEFS.(Technanogy Materials Development )
August 1, 2004... Nanosys Withdraws IPO. Nanosys Inc. (Palo Alto, CA) cancelled its plans for an initial public offering (IPO) of common stock early this month. In its August 4 filing with the Securities and Exchange Commission (SEC), Nanosys attributed the...

PRODUCT NEWS.(Brief Article)
August 1, 2004... Fridge Has TV and Nanoparticles Too. LG Electronics Inc. (Seoul, Korea) has launched a new TV refrigerator - a television and refrigerator combined - in Europe and the U.S. that is equipped with nanoparticles to kill bacteria and eliminate...

FINANCIAL RESULTS.
August 1, 2004... Nanophase Reports Revenue Rise. Nanophase Technologies Corp. (Romeoville, IL) reported revenue of $1.54 million for the quarter ended June 30, 2004, an increase of 18% over the same quarter in 2003 and an increase of 19% over the prior quarter....

PEOPLE.(Brief Article)
August 1, 2004... Advanced Magnetics Makes Appointments. Advanced Magnetics, Inc. (Cambridge, MA) has appointed Michael N. Avallone as chief financial officer of the company. Avallone assumes the responsibilities of James A. Matheson, vice president of finance...

NEW RESEARCH.(Nanotechnology)
August 1, 2004... Crystalline Silica Nanowires Fabricated. A team of researchers from the Jawaharlal Nehru Centre for Advanced Scientific Research (Bangalore, India) has synthesized for the first time crystalline silica (alpha-cristobalite) nanowires of 50-100...

RECENT PATENTS.
August 1, 2004... Tunable Laser Based on Quantum Structures. An inventor representing the National Research Council of Canada (Ottawa, Ontario, Canada) has developed a laser diode based on a low dimensional nanostructure - such as quantum dots or wires - that...

CALENDAR.(conferences)(Brief Article)(Calendar)
August 1, 2004... August 22-26, 2004, Nanoscience Symposium, 228th American Chemical Society (ACS) National Meeting, Philadelphia, PA. Contact: American Chemical Society, Tel: 800/227-5558 or 202/872-4600, Fax: 202/872-4612, Email: natlmtgs@acs.org. ...

TECHNOLOGY INSIGHT: NANOPARTICLES AND POLYMERS: A FRUITFUL SYMBIOSIS Part II.(Brief Article)
August 1, 2004... By Helmut Auweter, Senior Scientist, BASF Aktiengesellschaft, Polymer Physics, Ludwigshafen, Germany This is the second of a two-part article addressing the various modes of action of functional polymers in the formation of nanoparticles...

POLYMERS AS DISPERSANTS, STABILIZERS.(Brief Article)
August 1, 2004... An ideal formulation is on that meets the customers' needs in any respect. Thus, any formulation of nanoparticles has to fully exploit the properties of the particles and also has to provide long-term stability and ease of use. ...

Stabilization mechanisms of polymers.(Brief Article)
August 1, 2004... It is shown that by using the technique of Total Internal Reflectance Microscopy (TIRM), the stabilizing forces between polymer-modified surfaces, i.e. long range and even short range forces, can now directly be measured with a force resolution...

SWITCHING PROPERTIES.(Brief Article)
August 1, 2004... The size and the shape of a macromolecule in solution or in an adsorbed state not only depends on the polymer's composition, but also on various environmental parameters such as temperature, pH, salt concentration, solvent quality and solvent...

CHANGING OF POLYMER PROPERTIES.(Brief Article)
August 1, 2004... Further examples of controlled release mechanisms are the release of actives from hydrogels and from tailor-made comb polymers. In these cases, again, the release of an active material can be induced by a change in temperature, pH or salt...

OUTLOOK.
August 1, 2004... We showed that the success of many nanoparticulate systems, i.e., their ease of production and the superior performance in their respective applications, lies in the combination of the nanoparticles' intrinsic properties with the properties of...