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Nanocantilevers image nanoparticles in cells

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A Method for Imaging Nanoparticles Inside Cells

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Scientists Use Virus To Reprogram Adult Cells In Mice

n2hightech writes "Harvard University scientists figured out how to activate a trio of dormant genes that commanded non-insulin producing pancreas cells to switch to the Beta type insulin producing cells. The method uses an engineered virus to infect the cells and deliver special proteins that activate the dormant genes. This technology has the potential to make all stem cell based methods obsolete because it does not pose the risk of rejection and cancer associated with stem cells. A simple injection into the area where cells need to be reprogrammed is all that is required." Gospodin adds a link to coverage at the Washington Post.

Dual-Mode Nanoparticles Image Tumors Using MRI and PET

Medical imaging represents one of the most used and useful procedures in the oncologist's diagnostic toolkit, even though each of the most useful techniques—magnetic resonance imaging (MRI), computerized tomography x-ray imaging (CT), and positron emission tomography (PET) scanning—has its own set of limitations. The companies that make imaging instruments have responded by developing so-called dual-modality machines that can simultaneously perform two different types of scans. Now two reports in the scientific literature show how nanotechnology researchers have responded by creating dual-modality contrast agents for future use with these next-generation imaging devices.

Dual-mode nanoparticles image tumors using MRI and PET

(Nanowerk News) Medical imaging represents one of the most used and useful procedures in the oncologist’s diagnostic toolkit, even though each of the most useful techniques—magnetic resonance imaging (MRI), computerized tomography x-ray imaging (CT), and positron emission tomography (PET) scanning—has its own set of limitations. The companies that make imaging instruments have responded by developing so-called dual-modality machines that can simultaneously perform two different types of scans. Now two reports in the scientific literature show how nanotechnology researchers have responded by creating dual-modality contrast agents for future use with these next-generation imaging devices.

Promising New Method To Fabricate Ultra-thin Silicon Solar Cells Developed

IMEC is developing a new method to produce ~50µm thin crystalline silicon wafers for use in solar cells. The process involves mechanically initiating and propagating a crack parallel to the surface of a Si wafer. In this way, Si foils with an area of 25cm² and a thickness of 30-50µm have already been produced. The method makes use of industrially available tools (screen printer, belt furnace) and is potentially kerf-loss free.

SiC quantum dots image live cells

Researchers in France have made the first, chemically inert, biocompatible silicon carbide quantum dots for fluorescence imaging of living cells. The result is a major advance since all quantum dots used for imaging so far were toxic to cells.

Researchers Modify T-Cells, Make Them HIV Resistant

DieNadel writes to share that naturally occurring proteins called "zinc fingers" are being used in a new approach to AIDS treatment. Using modified T-Cells with the zinc fingers, researchers at the Pennsylvania School of Medicine have shown a reduction in viral load in mice. "'By inducing mutations in the CCR5 gene using zinc finger proteins, we've reduced the expression of CCR5 surface proteins on T cells, which is necessary for the AIDS virus to enter these immune system cells,' explains first author Elena Perez, MD, PhD, Assistant Professor of Pediatrics at Penn. 'This approach stops the AIDS virus from entering the T cells because it now has an introduced error into the CCR5 gene.'"

New Method for Controversy-Free Embryonic Stem Cells

If Hilde Van de Velde had developed a potentially embryo-gentle method of deriving embryonic stem cells just a few months sooner, the science media would be buzzing today.

Skin Cells Produce Library of Diseased Stem Cells

WASHINGTON (Reuters) – U.S. stem cell experts have produced a library of the powerful cells using ordinary skin and bone marrow cells from patients, and said Thursday they would share them freely with other researchers.

Injections To Replace Heart Surgery?

chareverie writes "Researchers at Harvard University have been working towards a goal of replacing some types of heart surgery with injections of cells that would grow into blood vessels for damaged hearts. The cells that would be used are progenitor cells obtained from the blood or bone marrow, as opposed to stem cells that are obtained from human embryos. The research team was successful with their tests on growing heart blood vessels in mice. Joyce Bishoff, an associate professor of medicine at Harvard and senior author of the report, says, 'Our next goal down the line is to use them in humans.' She also notes that more studies need to be done on animals to see how these cells would react and behave with other types of tissues. A similar human experiment was done two years ago in Germany, during which a few people from a group of 75 he

Applied Nanoscience Receives Additional Patent Coverage on Core Technology Platform

CARLSBAD, CA -- (MARKET WIRE) -- 07/23/08 -- Applied Nanoscience Inc. (ANI) (APNN), a nanotechnology-based filtration development company, today announced that it has been issued a patent in New Zealand for its core technology platform encompassing "Filtering Devices Incorporating Nanoparticles." The patent covers three main methods of associating nanoparticles with filter media: (1) having pellets of nanoparticles located adjacent to the filter media; (2) coating the filter media with a powder of nanoparticles; and, (3) impregnating the nanoparticles into the filter media.

Dual-Mode Nanoparticles Image Tumors Using MRI and PET

Medical imaging represents one of the most used and useful procedures in the oncologist’s diagnostic toolkit, even though each of the most useful techniques—magnetic resonance imaging (MRI), computerized tomography x-ray imaging (CT), and positron emission tomography (PET) scanning—has its own set of limitations.

FiatLux Advanced Imaging Software Based on Video Game Technology Gets FDA Clearance

August 19, 2008 - FiatLux Imaging Inc. today released its FiatLux Visualize medical imaging application that capitalizes on advanced video game technology to create 2D/3D images from CT and MRI scans at a fraction of the cost of current medical imaging technology.

High-Efficiency, Flexible, High-Stability Solar Cells

Nanotechnology-based hybrid nanocrystal inorganic thinfilm photovoltaics combine the best features of solar cells constructed from bulk thin-film silicon and from polymer solar cells. The colloidal nanocrystal (NC) cell technology offered here allows the production of air-stable solar cells processed using solution phase methods. The technology simplifies fabrication under ambient conditions, thus expanding the range of flexible or conformal substrates that can be used.

High-Efficiency, Flexible, High-Stability Solar Cells

Nanotechnology-based hybrid nanocrystal inorganic thinfilm photovoltaics combine the best features of solar cells constructed from bulk thin-film silicon and from polymer solar cells. The colloidal nanocrystal (NC) cell technology offered here allows the production of air-stable solar cells processed using solution phase methods. The technology simplifies fabrication under ambient conditions, thus expanding the range of flexible or conformal substrates that can be used.

Like Eavesdropping At A Party: How A Tiny Protein Senses All The Communications In A Cell

Cells rely on calcium as a universal means of communication. For example, a sudden rush of calcium can trigger nerve cells to convey thoughts in the brain or cause a heart cell to beat. A longstanding mystery has been how cells and molecules manage to appropriately sense and respond to the variety of calcium fluctuations within cells.

Like Eavesdropping at a Party: Scientists Discover How a Tiny Protein Senses All the Communications in a Cell

Cells rely on calcium as a universal means of communication. For example, a sudden rush of calcium can trigger nerve cells to convey thoughts in the brain or cause a heart cell to beat. A longstanding mystery has been how cells and molecules manage to appropriately sense and respond to the variety of calcium fluctuations within cells.

Olympus Imaging and Panasonic Announce New Micro Four Thirds System Standard

Olympus Imaging Corporation (Olympus Imaging) and Matsushita Electric Industrial Co., Ltd. (Panasonic) today announced joint development of technologies and devices for the "Micro Four Thirds System standard," a new standard that extends the benefits of the Four Thirds System standard for interchangeable lens type digital camera systems by enabling dramatic reductions in size and weight. Under the terms of an agreement between the two companies, they will work jointly toward commercial production of significantly lighter and more compact interchangeable lens type digital camera systems.

Olympus Imaging and Panasonic Announce New Micro Four Thirds System Standard

Olympus Imaging Corporation (Olympus Imaging) and Matsushita Electric Industrial Co., Ltd. (Panasonic) today announced joint development of technologies and devices for the "Micro Four Thirds System standard," a new standard that extends the benefits of the Four Thirds System standard for interchangeable lens type digital camera systems by enabling dramatic reductions in size and weight. Under the terms of an agreement between the two companies, they will work jointly toward commercial production of significantly lighter and more compact interchangeable lens type digital camera systems.

Olympus Imaging and Panasonic Announce New Micro Four Thirds System Standard

Olympus Imaging Corporation (Olympus Imaging) and Matsushita Electric Industrial Co., Ltd. (Panasonic) today announced joint development of technologies and devices for the "Micro Four Thirds System standard," a new standard that extends the benefits of the Four Thirds System standard for interchangeable lens type digital camera systems by enabling dramatic reductions in size and weight. Under the terms of an agreement between the two companies, they will work jointly toward commercial production of significantly lighter and more compact interchangeable lens type digital camera systems.

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