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Tetravinylallene, a small but powerful molecule, has been synthesized for the first time

Strained, Symmetric, and New

02-Oct-2019

Many natural compounds used in medicine have complex molecular architectures that are difficult to recreate in the lab. Help could come from a small hydrocarbon molecule, called tetravinylallene, which has been synthesized for the first time by Australian scientists. As detailed in the journal ...

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Little Heaps of Silver, All Wrapped Up

Determination of the crystal structure of a DNA-stabilized silver nanocluster

13-Sep-2019

Nanoclusters are little “heaps” of a few atoms that often have interesting optical properties and could become useful probes for imaging processes in areas such as biomedicine and diagnostics. In the journal Angewandte Chemie, researchers have introduced a nanocluster of 16 silver atoms ...

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Doped Photovoltaics

Organic dye in zinc oxide interlayer stabilizes and boosts the performance of organic solar cells

20-Aug-2019

Organic solar cells are made of cheap and abundant materials, but their efficiency and stability still lag behind those of silicon-based solar cells. A Chinese-German team of scientists has found a way to enhance the electric conductivity of organic solar cells, which increases their ...

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Direct detection of circulating tumor cells in blood samples

Enhanced Glow

09-Aug-2019

Tumor cells circulating in blood are markers for the early detection and prognosis of cancer. However, detection of these cells is challenging because of their scarcity. In the journal Angewandte Chemie, scientists have now introduced an ultrasensitive method for the direct detection of ...

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Actively Swimming Gold Nanoparticles

Chemotactic movement on the macroscale by a swarm of bacteria-mimicking nanoswimmers

07-Aug-2019

Bacteria can actively move towards a nutrient source—a phenomenon known as chemotaxis—and they can move collectively in a process known as swarming. Chinese scientists have redesigned collective chemotaxis by creating artificial model nanoswimmers from chemically and biochemically modified gold ...

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Glow Reveals Dangerous Bacteria

Chemiluminescence probes for the rapid and sensitive detection of salmonella and listeria

04-Jul-2019

Salmonella and listeria are among the most widely distributed and deadliest causes of foodborne infections. Their rapid and reliable detection on food and industrial food processing equipment is very important. In the journal Angewandte Chemie, scientists have introduced a new, ultrasensitive, ...

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Microglia Turned On

Visualizing microglia in brain tissue with a fluorescence turn-on substrate

20-May-2019

Part of the immune system in the brain is made up of so-called microglia cells. Korean and Singaporean researchers have now developed a fluorescent probe that specifically labels this type of macrophage. The cells were visualized in cell culture and in the live brains of rodents. As detailed in ...

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Electrochemical extraction of energy from seawater

Power generator autonomously switches between two functional modes

15-May-2019

Underwater vehicles, diving robots, and detectors require their own energy supply to operate for long periods independent of ships. A new, inexpensive system for the direct electrochemical extraction of energy from seawater offers the advantage of also being able to handle short spikes in power ...

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Tracking Small Things in Cells

Small and tunable fluorophores for the imaging of metabolites in living cells

02-May-2019

Living cells can react to disturbances with a changed metabolism, but direct observation of trafficking metabolites in live cells is difficult. An international team of scientists has now developed a class of remarkably small fluorophores called SCOTfluors. The dyes emit light in the visible to ...

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Partitioning of Porous Materials

Highly resorptive MOFs can be constructed by a foresighted combination of two different synthetic principles

02-May-2019

Gases and pollutants can be filtered from air and liquids by means of porous, crystalline materials, such as metal–organic frameworks (MOFs). To further partition these pores and enhance their sorption capacity, a team of scientists have developed a fast and versatile two-in-one synthetic ...

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