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Treatment of Ischemic Heart Failure With Bone Marrow Cells Does Not Show Improvement For Certain Heart Function Measures
Forces among Molecules: Tiny but important
Citrus greening bacterium may ‘ring the dinner bell’ to attract insect
‘Bed-of-nails’ breast implant deters cancer cells
Researchers discover why humans began walking upright
Embryonic stem cells shift metabolism in a cancer-like way upon implanting in the uterus
Researchers Embed Artificial Membranes with Billions of Nanoantennas for Enhanced Optical Studies
Magnetic field researchers target Hundred-Tesla goal
Researchers Unveil Robot Jellyfish Built on Nanotechnology
Diatom biosensor could shine light on future nanomaterials

Treatment of Ischemic Heart Failure With Bone Marrow Cells Does Not Show Improvement For Certain Heart Function Measures

Posted: 24 Mar 2012 07:27 AM PDT

Use of a patient's bone marrow cells for treating chronic ischemic heart failure did not result in improvement on most measures of heart function, according to a study appearing in JAMA. The study is being published early online to coincide with its presentation at the American College of Cardiology's annual scientific sessions.

Forces among Molecules: Tiny but important

Posted: 23 Mar 2012 06:55 PM PDT

Forces are not only associated with machines or muscles. You can also find them elsewhere, for instance between molecules. Theoretical chemists like Dr. Łukasz Tomasz Rajchel (University of Warsaw) are familiar with that. However, they – or rather their computers – are not capable of calculating them with high accuracy and efficiency at the same time. The scholarship holder of the Alexander von Humboldt Foundation wants to get to the bottom of the computational problem while working in Prof. Dr.

Citrus greening bacterium may ‘ring the dinner bell’ to attract insect

Posted: 23 Mar 2012 06:47 PM PDT

The bacterium responsible for citrus greening causes infected trees to give off a scent that rings the dinner bell for the disease-carrying insect, University of Florida researchers say.

This finding might distress growers, but it could enable scientists to better monitor the insect and maybe cut the chances healthy trees become infected.

The study was published online March 22 by the journal PLoS Pathogens. The article, which is open access, is at http://dx.plos.org/10.1371/journal.ppat.1002610.

‘Bed-of-nails’ breast implant deters cancer cells

Posted: 23 Mar 2012 06:22 PM PDT

Researchers at Brown University have created an implant that appears to deter breast cancer cell regrowth. Made from a common federally approved polymer, the implant is the first to be modified at the nanoscale in a way that causes a reduction in the blood-vessel architecture that breast cancer tumors depend upon, while also attracting healthy breast cells. Results are published in Nanotechnology.

Researchers discover why humans began walking upright

Posted: 23 Mar 2012 06:06 PM PDT

Most of us walk and carry items in our hands every day. These are seemingly simple activities that the majority of us don't question. But an international team of researchers, including Brian Richmond at the George Washington University, have discovered that human bipedalism, or walking upright, may have originated millions of years ago as an adaptation to carrying scarce, high-quality resources. This latest research was published in this month's "Current Biology."

Embryonic stem cells shift metabolism in a cancer-like way upon implanting in the uterus

Posted: 23 Mar 2012 05:55 PM PDT

Shortly after a mouse embryo starts to form, some of its stem cells undergo a dramatic metabolic shift to enter the next stage of development, Seattle researchers report today. These stem cells start using and producing energy like cancer cells.

This discovery is published today in EMBO, the European Molecular Biology Organization journal.

Researchers Embed Artificial Membranes with Billions of Nanoantennas for Enhanced Optical Studies

Posted: 23 Mar 2012 02:27 PM PDT

At the heart of the immune system that protects our bodies from disease and foreign invaders is a vast and complex communications network involving millions of cells, sending and receiving chemical signals that can mean life or death. At the heart of this vast cellular signaling network are interactions between billions of proteins and other biomolecules. These interactions, in turn, are greatly influenced by the spatial patterning of signaling and receptor molecules.

Magnetic field researchers target Hundred-Tesla goal

Posted: 23 Mar 2012 02:04 PM PDT

Researchers at Los Alamos National Laboratory’s biggest magnet facility today met the grand challenge of producing magnetic fields in excess of 100 tesla while conducting six different experiments. The hundred-tesla level is roughly equivalent to 2 million times Earth’s magnetic field.

“This is our moon shot, we’ve worked toward this for a decade and a half,” said Chuck Mielke, director of the Pulsed Field Facility at Los Alamos.

Researchers Unveil Robot Jellyfish Built on Nanotechnology

Posted: 23 Mar 2012 10:53 AM PDT

Researchers at The University of Texas at Dallas and Virginia Tech have created an undersea vehicle inspired by the common jellyfish that runs on renewable energy and could be used in ocean rescue and surveillance missions.

In a study published this week in Smart Materials and Structures, scientists created a robotic jellyfish, dubbed Robojelly, that feeds off hydrogen and oxygen gases found in water.

Diatom biosensor could shine light on future nanomaterials

Posted: 23 Mar 2012 08:04 AM PDT

A glow coming from the glassy shell of microscopic marine algae called diatoms could someday help us detect chemicals and other substances in water samples. And the fact that this diatom can glow in response to an external substance could also help researchers develop a variety of new, diatom-inspired nanomaterials that could solve problems in sensing, catalysis and environmental remediation.