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News articles about "molecules"

Nanoparticles accumulate quickly in wetlands: Aquatic food chains might be harmed by molecules 'piggybacking' on carbon nanoparticles

A Duke University team has found that nanoparticles called single walled carbon nanotubes accumulate quickly in the bottom sediments of an experimental wetland setting an action they say could indirectly damage the aquatic food chain ... - Read More

New drug-delivery capsule may replace injections

Given a choice most patients would prefer to take a drug orally instead of getting an injection Unfortunately many drugs especially those made from large proteins cannot be given as a pill because they get ... - Read More

New absorber will lead to better biosensors

iological sensors or biosensors are like technological canaries in the coalmine By converting a biological response into an optical or electrical signal they can alert us to dangers in our external and internal environments They ... - Read More

Old Drug May Be Key to New Antibiotics

Released 22 Sep 2014 3 05 PM EDTSource Newsroom McMaster University more news from this source Contact Information Available for logged in reporters only Citations eLifeSep 23 2014 Hamilton ON September 22 2014 – McMaster ... - Read More

Researchers Study Vital 'On/Off Switches' That Control When Bacteria Turn Deadly

No matter how many times it’s demonstrated it’s still hard to envision bacteria as social communicating creatures But by using a signaling system called “quorum sensing ” these single celled organisms radically alter their behavior ... - Read More

X-rays unlock a protein's SWEET side

Sugar is a vital source of energy for both plants and animals alike Understanding just how sugar makes its way into the cell could lead to the design of better drugs for diabetes patients and ... - Read More

New halogenation enzyme found: Discovery to impact pharmaceutical and agricultural industries

Molecules containing carbon halogen bonds are produced naturally across all kingdoms of life and constitute a large family of natural products with a broad range of biological activities The presence of halogen substituents in many ... - Read More

The future face of molecular electronics

The emerging field of molecular electronics could take our definition of portable to the next level enabling the construction of tiny circuits from molecular components In these highly efficient devices individual molecules would take on ... - Read More

Scientists come closer to the industrial synthesis of a material harder than diamond

Researchers from the Technological Institute for Superhard and Novel Carbon Materials in Troitsk MIPT MISiS and MSU have developed anew method for the synthesis of an ultrahard material that exceeds diamond in hardness An article ... - Read More

Chemical detection: A purer solution

A separation method that isolates protein protected gold clusters enables improved sensing of toxic mercury compounds and pesticides Fluorescence based detection of pesticides and other environmentally harmful chemicals is limited by the ability of current ... - Read More

Graphene paints a corrosion-free future: Keep food fresh longer?

A thin layer of graphene paint can make impermeable and chemically resistant coatings which could be used for packaging to keep food fresh for longer and protect metal structures against corrosion new findings from The ... - Read More

Researchers watch lipid molecules in motion

Researchers from Göttingen in collaboration with colleagues from Augsburg have 'filmed' the movement of lipid molecules using an X ray stroboscope at DESY In the scientific journal Physical Review Letters researchers lead by Professor Tim ... - Read More

Self-cleaning surfaces: The importance of a single groove

An innovative algorithm exposes the energy pathways that cause super repellent surfaces to stop working 'Superhydrophobic' surfaces such as anti icing or self cleaning windows are remarkably effective at repelling water molecules However they may ... - Read More

'Pick 'n' Mix' chemistry to grow cultures of bioactive molecules

Chemists at ETH Zürich and ITbM Nagoya University have developed a new method to build large libraries of bioactive molecules which can be used directly for biological assays by simply mixing a small number of ... - Read More

Doped graphene nanoribbons with potential

Graphene possesses many outstanding properties it conducts heat and electricity it is transparent harder than diamond and extremely strong But in order to use it to construct electronic switches a material must not only be ... - Read More

'Solid' light could compute previously unsolvable problems

Researchers at Princeton University have begun crystallizing light as part of an effort to answer fundamental questions about the physics of matter The researchers are not shining light through crystal they are transforming light into ... - Read More

Buckyballs and diamondoids in tiny electronic gadget: Two exotic types of carbon form molecule for steering electron flow

Scientists have married two unconventional forms of carbon one shaped like a soccer ball the other a tiny diamond to make a molecule that conducts electricity in only one direction This tiny electronic component known ... - Read More

Artificial membranes on silicon

Artificial membranes mimicking those found in living organisms have many potential applications ranging from detecting bacterial contaminants in food to toxic pollution in the environment to dangerous diseases in people Now a group of scientists ... - Read More

Ultra sensitive biosensor from molybdenite semiconductor: Potential for single-molecule detection

UC Santa Barbara researchers demonstrate atomically thin ultrasensitive and scalable molybdenum disulfide field effect transistor based biosensors and establish their potential for single molecule detection Move over graphene An atomically thin two dimensional ultrasensitive semiconductor ... - Read More

Researchers part water: 'electric prism' separates water's nuclear spin states

Using an electric prism scientists have found a new way of separating water molecules that differ only in their nuclear spin states and under normal conditions do not part ways Since water is such a ... - Read More
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