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Nanosheet growth technique could revolutionize nanomaterial production

02-Feb-2016

After six years of painstaking effort, a group of University of Wisconsin-Madison materials scientists believe the tiny sheets of the semiconductor zinc oxide they're growing could have huge implications for the future of a host of electronic and biomedical devices. The group -- led by Xudong ...

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Self-stacking nanogrids

Polymer nanowires could offer route to tinier chip components.

26-Jan-2016

Since the 1960s, computer chips have been built using a process called photolithography. But in the past five years, chip features have gotten smaller than the wavelength of light, which has required some ingenious modifications of photolithographic processes. Keeping up the rate of circuit ...

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New particle can track chemo

18-Jan-2016

Tracking the path of chemotherapy drugs in real time and at a cellular level could revolutionize cancer care and help doctors sort out why two patients might respond differently to the same treatment. Researchers at The Ohio State University have found a way to light up a common cancer drug so ...

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Stanford technology makes metal wires on solar cells nearly invisible to light

27-Nov-2015

A solar cell is basically a semiconductor, which converts sunlight into electricity, sandwiched between metal contacts that carry the electrical current. But this widely used design has a flaw: The shiny metal on top of the cell actually reflects sunlight away from the semiconductor where ...

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One direction: Researchers grow nanocircuitry with semiconducting graphene nanoribbons

15-Oct-2015

In a development that could revolutionize electronic ciruitry, a research team from the University of Wisconsin at Madison (UW) and the U.S. Department of Energy's Argonne National Laboratory has confirmed a new way to control the growth paths of graphene nanoribbons on the surface of a germainum ...

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Big range of behaviors for tiny graphene pores

Ion channels in inorganic layers

08-Oct-2015

The surface of a single cell contains hundreds of tiny pores, or ion channels, each of which is a portal for specific ions. Ion channels are typically about 1 nanometer wide; by maintaining the right balance of ions, they keep cells healthy and stable. Now researchers at MIT have created tiny ...

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Physicists map the strain in graphene

01-Oct-2015

An international group of scientists is reporting a breakthrough in the effort to characterize the properties of graphene noninvasively while acquiring information about its response to structural strain. Using Raman spectroscopy and statistical analysis, the group succeeded in taking nanoscale ...

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A small, inexpensive high frequency comb signal generator

17-Sep-2015

The manipulation of electromagnetic radiation is an essential function of today's technology. Low frequency radiation is easier to generate than gigahertz radiation. Yet higher frequencies can carry more information and travel farther. Now researchers from the Italian National Research Council ...

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Environmentally friendly lignin nanoparticle 'greens' silver nanobullet to battle bacteria

15-Jul-2015

North Carolina State University researchers have developed an effective and environmentally benign method to combat bacteria by engineering nanoscale particles that add the antimicrobial potency of silver to a core of lignin, a ubiquitous substance found in all plant cells. The findings introduce ...

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Penn engineers show how 'perfect' materials begin to fail

10-Jun-2015

Crystalline materials have atoms that are neatly lined up in a repeating pattern. When they break, that failure tends to start at a defect, or a place where the pattern is disrupted. But how do defect-free materials break?Until recently, the question was purely theoretical; making a defect-free ...

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