Observing proteins and cells in the wild
...ues to explicitly and safely take up the synthetic dots - until now. In the Jan. issue of Nature Biotechno...archers demonstrate for the first time how quantum dots can be used to simultaneously track multiple living proteins or cells for up to days at a time. A fl...Prion disease may be caused by buildup of cellular trash, say Stanford researchers
...xt research hurdle in their attempt to connect the dots leading to neuronal degeneration and death: identifying the natural target for Mahogunin. Additional collaborators include Stanley J. Watson, Jr., MD, PhD, professor of psychiatry, and Xinyun Lu, PhD, research investigator, both from the University o...The frontier of microelectronics: Building nano-machines, part by part
...s,- or nano-scale resonators, to study how quantum dots may one day be used as light-guiding components. W...response of the nanostructured resonator." Quantum dots are clusters of 100s or 1000s of atoms. In other words, devices can be developed where the optical e......particles a few tens of atoms in size. The quantum dots are made by Susan Kauzlarich, a professor of chemistry who studies these very small particles. The particles will be tested for antiviral activity by Satya Dandekar, professor and chair of microbiology and immunology at the UC Davis School of Medicin...Integration of nanotechnology with biology and medicine will result in major medical advances
...ugated quantum dots, consisting of different sized dots embedded in tiny beads made of polymer material, c..."multiplexing." By chemically binding the quantum dots to particular genes and proteins, scientists including Dr. Nie are developing molecular nanoprobes ...Speedy elephants use a biomechanical trick to 'run' like Groucho
...nts, and then the duo marked the joints with large dots of water-soluble, nontoxic paint. They videotaped 188 trials of 42 Asian elephants walking and running through a 100-foot course and measured their speed with photosensors and video analysis. The average walking speed was 4.5 mph. But 32 of the eleph...JCI Table of Contents, May 1, 2003
...17085.pdf ACCOMPANYING COMMENTARY: Connecting the dots from Toll-like receptors to innate immune cells andinflammatory bowel disease AUTHOR CONTACT: Averil Ma University Of Chicago, Chicago, Illinois, USA. Phone: 312-702-4708 Fax: 312-702-2281 E-mail: ama@medicine.bsd.uchicago.edu View the PDF of this...3-D imaging inside living organism, using quantum dots
...hich are molecule-size nanocrystals called quantum dots circulating through the bloodstream. Quantum dots are microscopic metal or semiconductor boxes (in this case cadmium selenide-zinc sulfide) that hold ...Monkey's memory cells caught in the act of learning
...al scene to win a juice reward. For example, white dots appeared at four locations over a picture of a gorilla in a forest. The animals learned, through trial and error, which location was associated with the reward for each new scene. Eye-tracking technology detected if the animal was fixated on the corr...Von Liebig Center awards funding to six projects to commercialize UCSD faculty research
...posal involves the development of pairs of quantum dots and fluorescent quencher probes which can selectively hybridize to a target DNA sequence. As part of a new process, Dr. Heller's team will apply an oscillating electric field (DC or AC) to the sample, causing the fluorescent nanoparticle and quencher...Carnegie Mellon enhances Quantum Dot Corp. technology for long-term, live-animal imaging
... feat overcomes a major limitation, making quantum dots finally practical for long-term studies in mammals... Dot Corporation, found that the company's quantum dots (Qdot Particles) coated with an amphiphilic polyacrylic acid polymer are stable in vivo. A member of...Nanoparticle probes are destined for major new role in medical diagnostics and drug delivery
...rocess called "multiplexing, bioconjugated quantum dots of different sizes can be embedded in tiny polymer...Alzheimers. For example, nanoprobes using quantum dots that are chemically bound to particular genes and proteins can rapidly analyze biopsy tissue from ca...Tagging faulty genes with fluorescent nanodots
... research. The NIST team demonstrated that quantum dots give off signals that are 200 to 1,100 percent mor... tumor cells to grow rapidly. Potentially, quantum dots could be used to tag these genes. The quantum dots used in the study are commercially available agg......proaches based on multiple combinations of quantum dots and ligands will be invaluable for such investigations." End image here In the same issue of Nature Biotechnology, two leading experts in live cell imaging reviewed the results of the study. "Semiconductor nanocrystals can track movements of ......istry at UC Davis,and her colleagues have now made dots of protein hundreds of timessmaller than those in ... across on a gold surface. By reducing the size of dots ingene or protein chips, the number of potential tests per device couldbe hugely increased....UCLA chemists develop new coating for nanoscale probes
...nd introduce into the cell different color quantum dots that can all be excited by a single blue light sou...nd Pinaud are developing methods to attach quantum dots of specific colors to the different proteins on cells' surface and inside cells. "Humans have...Vision: how perceptions survive in the face of ambiguity
...d that changing the color, the moving speed of the dots on the cylinder, the size, or the stereo depth of the cylinder had no or minimal effect on the perceptual stabilization of the rotating cylinder. In contrast, stabilization depended on the stimulus location where in the visual field the object fell....Scientists describe the world's smallest, lightest fish
...f us systematists describe things that fill in the dots in the middle of the envelope. This new discovery is pushing the edge, increasing the size of the envelope. It's important because it demonstrates that we're still expanding our knowledge of the limits of the diversity that's present on this planet a...Newly designed nanoparticle quantum dots simultaneously target and image prostate tumors in mice
...ly target and image cancerous tumors. The quantum dots were encapsulated in a highly protective polymer c...Medicine and the Winship Cancer Institute. Quantum dots are nanometer-sized luminescent semiconductor crystals that have unique chemical and physical proper...Gold quantum dots have applications in biological labeling, nanoscale optics
A new class of water-soluble quantum dots made from small numbers of gold atoms could be the...airs. "We have discovered a new class of quantum dots that are water soluble, strongly fluorescent, and display discrete excitation and emission spectra t...