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Warum Champignons leicht braun werden

By Guest PostSeptember 9, 2014Nature, Scienceafrican rhinos, anna bucharova, armed conflicts, belarus, catastrophic disasters, command levels, coordination, economic damage, forschungen zu krankheiten, hurricane harvey, increasing, inflation adjusted gdp, iot, iot technology, luzhsky training ground, mariana kruger, markierte zellen, mtn, polar code, positronen emissions tomografie, rhino poachers, schwefelwasserstoff, special operation forces, substrate, universitaet wien, uv strahlung, verbot fuer schiffe, welgevonden game reserve, zapad 2017

ChemikerInnen erforschen Verderb von Lebensmitteln

Annette Rompel und ihr Team vom Institut für Biophysikalische Chemie der Universität Wien erforschen die “Bräunungsreaktion” beim Verderb von Champignons. Die ForscherInnen konnten nachweisen, dass das dafür zuständige Enzym bereits gebildet wird, wenn der Pilz noch gar nicht verdorben ist. Die Studie erscheint aktuell online in den renommierten Fachjournalen Phytochemistry und Acta Crystallographica. (more…)

Mathematical framework: How a wrinkle becomes a crease

By Guest PostAugust 22, 2014Healthb all tumorerkrankung, become, brain injuries, brown university, circuits, elusive gravitational effect, how, kyung suk kim, mathematical framework, mathematical model, mazen diab, solid state physics, substrate, tumorsuppressor, wrinkle

Kyung-Suk Kim and Mazen Diab have worked out the mathematics of how wrinkles form in solid materials under compression — and how, under more compression, those wrinkles can become creases. The mathematics of wrinkles and creases could help in the design of flexible electronic circuits, artificial skin, and soft robotic grips and may help explain brain injuries due to compression.

PROVIDENCE, R.I. [Brown University] — Wrinkles, creases and folds are everywhere in nature, from the surface of human skin to the buckled crust of the Earth. They can also be useful structures for engineers. Wrinkles in thin films, for example, can help make durable circuit boards for flexible electronics. (more…)

Guilty: Crabs are killing N.E. saltmarshes

By Guest PostMay 29, 2014Environmentancient buddhist sites, brown university, buddhist king, cape cod, corporate contributioins, crabs, data, ecosystem dynamics, favoour, geographic modeling, herbivory, list of billionaires, long island, mark bertness, mauryan dynasty, monica smith, policy making, proclamations of ashoka, substrate, thomas gillespie, tyler coverdale

Two newly published studies by a team of Brown University researchers provide ample new evidence that the reason coastal saltmarshes are dying from Long Island to Cape Cod is that hungry crabs, left unchecked by a lack of predators, are eating the cordgrass. (See sidebar on marsh die-off and greenhouse gasses.)

PROVIDENCE, R.I. [Brown University] — A marathon summer of field work by Mark Bertness, professor of ecology and evolutionary biology, and a squadron of students may finally help settle the heated debate about what’s killing the coastal saltmarshes of southern New England and Long Island. The group’s work has yielded two new papers that offer clear evidence of the cause. (more…)

Researchers Integrate Single-Crystal BFO onto a Silicon Chip, Open Door to Smart Devices

By Guest PostDecember 1, 2013Sciencebismuth ferrite, data, electronic functions, jay narayan, john prater, magnetic field, magnetic field strength, north Carolina, s rao, silicon chip, single crystal bfo, smart devices, state university, substrate

Researchers from North Carolina State University have for the first time integrated a material called bismuth ferrite (BFO) as a single crystal onto a silicon chip, opening the door to a new generation of multifunctional, smart devices.

BFO has both ferromagnetic and ferroelectric properties, meaning that it can be magnetized by running an electric current through the material. Potential applications for BFO include new magnetic memory devices, smart sensors and spintronics technologies. (more…)

Invention jet prints nanostructures with self-assembling material

By Guest PostSeptember 22, 2013Scienceatomic force, block copolymers, butterfly image, chemical nanopatterns, chemical pattern, dna molecule, double stranded, electrohydrodynamic, hanyang university, imec belgium, ink jet, invention, jet prints nanostructures, john rogers, korea, magnetic storage, microscope image, nanometers, paul nealey, photolithography, printing technology, resolution, ribbons, semiconductor, serdar onses, substrate, university of chicago, university of Illinois, urbana-champaign

A multi-institutional team of engineers has developed a new approach to the fabrication of nanostructures for the semiconductor and magnetic storage industries. This approach combines top-down advanced ink-jet printing technology with a bottom-up approach that involves self-assembling block copolymers, a type of material that can spontaneously form ultrafine structures.

The team, consisting of nine researchers from the University of Illinois at Urbana-Champaign, the University of Chicago and Hanyang University in Korea, was able to increase the resolution of their intricate structure fabrication from approximately 200 nanometers to approximately 15 nanometers. A nanometer is a billionth of a meter, the width of a double-stranded DNA molecule. (more…)

Researchers Find New Way to Create ‘Gradients’ for Understanding Molecular Interactions

By Guest PostAugust 16, 2013Sciencealbena ivanisevic, amino acid, biological systems, biomolecular gradients, cell receptors, gradients, human body, indium gallium nitride, indium rich end, ingan, l arginine, lauren bain, ligands, molecular behavior, molecules, new technique, north Carolina, oxide accumulation, peptides, ph level, proteins, salah bedair, semiconductor material, state university, substrate, tania paskova

Scientists use tools called gradients to understand how molecules interact in biological systems. Researchers from North Carolina State University have developed a new technique for creating biomolecular gradients that is both simpler than existing techniques and that creates additional surface characteristics that allow scientists to monitor other aspects of molecular behavior.

A gradient is a material that has a specific molecule on its surface, with the concentration of the molecule sloping from a high concentration on one end to a low concentration at the other end. The gradient is used not only to determine whether other molecules interact with the molecules on the gradient, but to determine the threshold level at which any interactions take place. (more…)

Researchers Build 3-D Structures Out of Liquid Metal

By Guest PostAugust 4, 2013Science3d structures, biomolecular engineering, collin ladd, component, droplets, gallium, indium, john muth, ju hee so, liquid metal, liquid metal alloy, michael dickey, north Carolina, polymer template, printing technology, room temperature, state university, substrate, three dimensions

Researchers from North Carolina State University have developed three-dimensional (3-D) printing technology and techniques to create free-standing structures made of liquid metal at room temperature.

“It’s difficult to create structures out of liquids, because liquids want to bead up. But we’ve found that a liquid metal alloy of gallium and indium reacts to the oxygen in the air at room temperature to form a ‘skin’ that allows the liquid metal structures to retain their shapes,” says Dr. Michael Dickey, an assistant professor of chemical and biomolecular engineering at NC State and co-author of a paper describing the work. (more…)

UA Grows Gourmet Mushrooms That Recycle Waste

By Guest PostJune 15, 2013Sciencebarry pryor, Berkeley, blue oyster, cancer, carbon dioxide, CO2, commercial mushroom grower, dementia, gourmet mushrooms, kingdom fungi, lauren jackson, maitakes, man, molds, mushroom based, mushrooms, mycologist, oysters, parker evans, pink oyster mushrooms, pizza boxes, recycle waste, recycling program, regeneration of soil, shitakes, start up company, substrate, tumors, university of arizona

UA plant scientists are growing gourmet mushrooms on coffee grounds, landscape waste, even pizza boxes – and reducing that waste to compost.

The University of Arizona class is called “Mushrooms, Molds and Man.” Intrigued, undergraduate Lauren Jackson decided to learn about “Kingdom Fungi” and its impact on the world.

He was hooked in a heartbeat. Barely into the course, “I just raised my hand and asked about research opportunities.” That week he started working in the lab with UA mycologist Barry Pryor. (more…)

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