Science

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New Detection Kit Helps Finding Cancerous Toxicant in Agricultural Goods

Iranian researchers from Isfahan University of Technology used gold nanoparticles and succeeded in the production of a detection kit to find cancerous toxicant in agricultural products.

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'Flying carpet' technique uses graphene to deliver one-two punch of anticancer drugs

An international team of researchers has developed a drug delivery technique that utilizes graphene strips as "flying carpets" to deliver two anticancer drugs sequentially to cancer cells, with each drug targeting the distinct part of the cell where it will be most effective. The technique was found to perform better than either drug in isolation when tested in a mouse model targeting a human lung cancer tumor.

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Researchers have attached two drugs -- TRAIL and Dox -- onto graphene strips. TRAIL is most effective when delivered to the external membrane of a cancer cell, while Dox is most effective when delivered to the nucleus, so the researchers designed the system to deliver the drugs sequentially, with each drug hitting a cancer cell where it will do the most damage.

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How bacteria control their size: By monitoring thousands of individual bacteria scientists discovered how they maintain their size from generation to generation

Scientists have traditionally studied bacteria in large numbers, not individually. Working with tens of millions of cells in a culture flask, they tracked their growth by looking at how much the cells dimmed light passing through a tube.

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Methicillin-resistant Staphylococcus aureus, or MRSA, are so uniform in size they look like they were made in a factory. How do the bacteria manage to keep their size so uniform?

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New concept of fuel cell for efficiency and environment: It grasps both performance efficiency and removal of toxic heavy metal ions in direct methanol fuel cells

The Center for Nanoparticle Research at the Institute for Basic Science (IBS) has succeeded in proposing a new method to enhance fuel cell efficiency with the simultaneous removal of toxic heavy metal ions.

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The electro-oxidation measurements clearly showed that the adsorbed CO was removed by Cr(VI). Based on the standard reduction potential values for COad electro-oxidation coupled with OHad ,CO(g) oxidation to CO2 and Cr(VI) reduction and [E0 (CO2/COad +OHad) = 0.7~0.8 VNHE (from electrochemical measurements)] , [E 0(CO2/CO) = -0.1 VNHE] and [E0 (Cr2O72?/Cr3+) = 1.35 VNHE], the oxidation of CO to CO2 coupled with the reductive conversion of Cr (VI) to Cr (III) is thermodynamically spontaneous. This redox process achieved not only the cleaning of the Pt electrode surface but also the transformation of toxic Cr (VI) into non-toxic Cr (III).

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'Glowing' new nanotechnology guides cancer surgery, also kills remaining malignant cells

Researchers at Oregon State University have developed a new way to selectively insert compounds into cancer cells - a system that will help surgeons identify malignant tissues and then, in combination with phototherapy, kill any remaining cancer cells after a tumor is removed.

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A new system developed at Oregon State University to improve cancer surgery uses a nanoparticle called a dendrimer to carry a drug into cancer cells, that can set the stage for improved surgery and also phototherapy.

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NASA Finds Good News on Forests and Carbon Dioxide

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A new NASA study suggests that tropical forests, like this one in Malaysia, absorb more atmospheric carbon dioxide than is absorbed by forests in Alaska, Canada and Siberia.

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Iranian Scientists Synthesize Biodiesel Fuel from Soya Oil Using Nanocatalysts

Iranian researchers from Ferdowsi University of Mashhad succeeded in the production of biodiesel fuel from soya oil to reduce pollutions caused by fossil fuels.

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FLEX™ from CRAIC Technologies: a Flexible UV-visible-NIR Microspectrophotometer Concept

FLEX™ is designed as a multi-functional tool able to acquire micro-scale images and spectra from the deep UV to the NIR. Offering transmission, reflectance, fluorescence, Raman as well as a host of other features, FLEX™ is a powerful addition to the laboratory.

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Studies on exotic superfluids in spin-orbit coupled Fermi gases were reviewed

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Schematic illustration of the single-particle spectra modified by spin-orbit coupling. The Rashba-type spin-orbit coupling can lead to a degenerate ring in momentum space for the lower branch of the single-particle dispersion spectra (left). The lower-branch dispersion spectrum under the NIST-type spin-orbit coupling (right) is less symmetric. These differences, as well as the hyperfine-spin dependence of the single-particle dispersion under spin-orbit coupling, give rise to rich physics in these systems.

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A repulsive material

Scientists from the RIKEN Center for Emergent Matter Science in Japan, along with colleagues from the National Institute of Material Science and the University of Tokyo, have developed a new hydrogel whose properties are dominated by electrostatic repulsion, rather than attractive interactions.

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