A quantum leap for fluorescence

From: The Scientist | Date: February 24, 2003| Author: | Copyright information

Quantum Dot releases its first commercial product

Fluorescent reporter molecules are used for microscopy, real-time PCR, microarrays, and other applications. Yet most fluorescent dyes share some fundamental flaws: They are subject to photobleaching, are not very bright, and have overlapping emission and absorption spectra. Some nanotechnologists are betting that quantum dots (QDs) will eliminate these problems.

QDs consist of a nanometer-scale crystalline core of semiconductor material; biologically active versions are surrounded by a protective shell and external coat. Unlike fluorophores, ...

Read all of this article with a FREE trial to HighBeam Research

Related newspaper, magazine, and trade journal articles from HighBeam Research

(Including press releases, facts, information, and biographies)

Major breakthrough for cell research
; ...technology of locally based Quantum Dot Corp., researchers in Germany watched...the nanotechnology sector, and Quantum Dot Corp. is developing some of the most...there is a possibility that Quantum Dot Corp. would go public in the future...
Engineered coatings improve quantum dot brightness. (Biomedical And Pharmaceutical Applications).(Brief Article)
; ...semiconductor nanocrystals, Quantum Dot Corp. improved the chemical stability...to Joel Martin, chairman of Quantum Dot Corp. These advancements bring the...closer to commercializing its quantum dot particles for biodetection and...
Recent Patents.(Massachusetts Institute of Technology)(Brief Article)
; ...been licensed exclusively to Quantum Dot Corp. (Hayward, CA) to produce luminescent...semiconductor nanocrystals. These quantum dot (Qdot) particles light up like...biotech sector, according to Quantum Dot Corp.'s president and CEO, Joel F...
Quantum dot to dot...to capacitor...to turnstile. (American Physical Society report)
; ...semiconductors, electrons trapped in a quantum dot can exist only in a handful of specific...a single electron markedly alters a quantum dot's characteristics energy spectrum. Moreover...precise number of electrons occupying a quantum dot strongly affects the transport of electrons...
News Briefs.(brief industry information)(Brief Article)(Industry Overview)
; ...Center of New York-Presbyterian Hospital. Quantum Dot Corp. Teams Up with GlaxoSmithKline. Quantum Dot Corp. (QDC) (Hayward, CA) has entered into...genotyping assays will be invaluable. Quantum Dot Corp. is working to apply quantum dot technology...
Review Assesses Quantum Dot Toxicity.
; ...applications. Among some of the front runners are Quantum Dot Corp, recently acquired by Invitrogen Corp, a leading...application, companies such as Evident Technologies and Quantum Dot Corp, sell less toxic customized QDs. For instance Evident...
AIST Develops Innovative Fluorescent Quantum Dot
; ...16 that it has developed a fluorescent quantum dot with superior properties. The On-Site...water-soluble and highly- luminescent quantum dot. Made of cadmium selenide (CdSe), the quantum dot is 3-6nm in diameter and excels in size...
Electrons in boxes: probing artificial atoms to stretch quantum physics.
; ...research groups reported results of quantum dot experiments at an American Physical...as excited states of a pancake-shaped quantum dot, 0.1 micrometer [micro] m across, containing...12 electrons. By incorporating this quantum dot into a device resembling a transistor...
Quantum Dot technology brightens researchers Quantum Dot technology brightens researchers Cell and tissue analysis easier with QDot crystals that replace traditional organic dyes By Janis Mara, BUSINESS WRITER HAYWARD
; QUANTUM DOT of Hayward has a bright idea -- or at...said Strouse, a scientific leader in quantum dot technologies. "The buzz is because you...them, you had to make them yourself." Quantum Dot was one of the first companies to bring...
Dot dash: researchers in many countries are close to finding practical applications for the semiconductor "quantum dot," a nanotechnology that will bring innovations in information and communication technologies. We talk to the man who first proposed this means of controlling electrons, Arakawa Yasuhiko.(Minds for Science)
; ...achievements of nanotechnology is the quantum dot, a three-dimensional semiconductor structure...confining electrons three-dimensionally, the quantum dot produces such quantum mechanical phenomena...and interference of quantum waves. Quantum dot lasers would enable high-speed ...