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Sunlight generates hydrogen in new porous silicon

Porous silicon manufactured in a bottom up procedure using solar energy can be used to generate hydrogen from water, according to a team of...

Engineer studies flow of blood vessels in diabetes, heart disease

People with diabetes develop early and severe heart disease, specifically atherosclerosis, a condition in which plaque builds up inside the arteries. Alisa Clyne, a...

Droplets break a theoretical time barrier on bouncing

Those who study hydrophobic materials — water-shedding surfaces such as those found in nature and created in the laboratory — are familiar with a...

Researchers make surfaces easier to cool under extreme heat

When an earthquake and tsunami struck Japan’s Fukushima nuclear power plant in 2011, knocking out emergency power supplies, crews sprayed seawater on the reactors...

Canine remote control: Hands-free dog walking for the digital age

That old "best friend" can get a bit tiresome, all that rolling over, shaking paws, long walks and eating every crumb of food off...

First Virtual Stomach Explores Drug Delivery

Researchers have developed the first virtual stomach, a computer-generated model that is providing unique insights into the way medicines are released from pills and capsules. "There's no other technique to allow you to see flow patterns in a real stomach, animal or human," said lead researcher James G. Brasseur, Ph.D., a professor of mechanical engineering and bioengineering at The Pennsylvania State University. Although pills and tablets have become a ubiquitous part of our society, the detail of how the stomach breaks them down to help release their medicine remains unclear. "You can give someone a drug and measure its uptake in tissue," he said, "but the process between administering the drug and the uptake is largely guesswork."

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