The compound eyes found in insects and some sea creatures are marvels of evolution. There, thousands of lenses work together to provide sophisticated information without the need for a sophisticated brain. Human artifice can only begin to approximate these naturally self-assembled structures, and, even then, they require painstaking manufacturing techniques.
Yale Univ. chemists have helped develop a family of new chemical catalysts that are expected to lower the cost and boost the sustainability of the production of chemical compounds used by a number of industries. The new catalysts are based on palladium, a rare and expensive metal. Palladium catalysts are used to form an array of chemical compounds in pharmaceuticals, plastics, agrochemicals and many other industries.
Oscilloscopes are a staple for any individual or firm involved with electronics and their functioning due to their versatility. An oscilloscope, also called a scope, is a type of electronic test equipment that allows signal voltages to be viewed, usually as a 2-D graph of one or more electrical potential differences (vertical axis) plotted as a function of time or of some other voltage (horizontal axis).
Few things are more refreshing than the kiss of sea spray on your face. You may not realize it, but that cool, moist air influences our climate by affecting how clouds are formed and how sunlight is scattered over the oceans. In ACS Central Science, researchers demonstrate that microbes in seawater can control the chemistry of sea spray ejected into the atmosphere.
A microsupercapacitor designed by scientists at Rice Univ. that may find its way into personal and even wearable electronics is getting an upgrade. The laser-induced graphene device benefits greatly when boron becomes part of the mix. The Rice lab of chemist James Tour uses commercial lasers to create thin, flexible supercapacitors by burning patterns into common polymers.
We all know intuitively that normal liquids flow more quickly as the channel containing them tightens. Think of a river flowing through narrow rapids. But what if a pipe were so amazingly tiny that only a few atoms of superfluid helium could squeeze through its opening at once?
Bacteria speak to one another using peptide signals in a soundless language known as quorum sensing. In a step towards translating bacterial communications, researchers at Princeton Univ. have revealed the structure and biosynthesis of streptide, a peptide involved in the quorum sensing system common to many streptococci.
Nanoengineers at the Univ. of California, San Diego developed a gel filled with toxin-absorbing nanosponges that could lead to an effective treatment for skin and wound infections caused by MRSA, an antibiotic-resistant bacteria. This "nanosponge-hydrogel" minimized the growth of skin lesions on mice infected with MRSA, without the use of antibiotics.
The liquid is dark red, a mixture of fat and blood, and Dr. Mark Berman pumps it out of the patient's backside. He treats it with a chemical, runs it through a processor and injects it into the woman's aching knees and elbows. The "soup," he says, is rich in shape-shifting stem cells: magic bullets that, according to some doctors, can be used to treat everything from Parkinson's disease to asthma to this patient's chronic osteoarthritis.
VICI’s Microvolume Diaphragm Valve is designed for trouble-free use in applications requiring minimal maintenance and maximum lifetime, suiting it for the process industry, automated lab analyzers and continuous-monitoring environmental analyses. Three configurations are available: a four-port internal loop sample injector; a six-port external loop sampling/switching valve; and the industry’s first 10-port multifunctional diaphragm valve.
A part of the performance degradation mechanism of the advanced, electrodeless, helicon plasma thruster with a magnetic nozzle, has been revealed. An electric propulsion device is a main engine, and a key piece of technology for space development and exploration. Charged particles are produced by electric discharge and accelerated. Thrust force is equivalent to the momentum exhausted by the device, and spacecraft can thus be propelled.
The varying scale and force of certain volcanic eruptions are directly influenced by the distribution of gases within magma inside a volcano’s conduit, according to a new study. Using state-of-the-art equipment, including UV cameras and electron microscopes, researchers led a project to analyze the eruptive plumes and ash generated by Volcán de Colima, the most active volcano in the Americas.
The recombination of electron shells in molecules, taking just a few dozen attoseconds, can now be viewed “live,” thanks to a new method. To track processes taking virtually no time to happen, scientists used the pump-probe method. First, a molecule was impulsively oriented with one laser pulse. Then a second powerful, low-frequency laser pulse ionized the molecule, which generated high harmonic radiation.
Scientists have made an important step towards understanding how volcanic eruptions happen, after identifying a previously unrecognized potential trigger. An international team of researchers from the University of Liverpool, Monash University and the University of Newcastle (Australia) think their findings could lead to new ways of interpreting signs of volcanic unrest measured by satellites and surface observations.
Nanoscale materials feature extraordinary, billionth-of-a-meter qualities that transform everything from energy generation to data storage. But while a nanostructured solar cell may be fantastically efficient, that precision is notoriously difficult to achieve on industrial scales. The solution may be self-assembly, or training molecules to stitch themselves together into high-performing configurations.