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A diabetes researcher’s take on dietary sugar

With all the talk these days about fructose, glucose, sucrose, high-fructose corn syrup, and sugar in general, it can be hard for a health-conscious person to sort out the truth.

“A lot of people are putting out their ideas as established fact,” says diabetes researcher and endocrinologist John Bantle, M.D., a professor of medicine at the University of Minnesota. “It’s hard to find the actual facts and then to interpret them.”

Bottom line: Too much sugar is bad, if only for the excess calories. But the story isn’t quite so simple. (more…)

Oil Spill Cleanup: Smart Filter Can Strain Oil Out of Water

By Guest PostAugust 30, 2012Environmentanish tuteja, arun kota, canola oil, capillary action, chemical detergent, cleanup, configuration, cosmetics industry, crude oil, deepwater horizon, emulsion, filter, fuel application, gibum kwon, gravity, hydrogen bond, mayonnaise, michigan, microscope, mixture, natural substance, novel nanoparticle, oil purification, oil spill, oleophobic, polyester fabric, polymer, rubbery, solution, surface tension, ultraviolet light, university, wastewater treatment, water, waterway, window screen

ANN ARBOR, Mich.— A smart filter with a shape-shifting surface can separate oil and water using gravity alone, an advancement that could be useful in cleaning up environmental oil spills, among other applications, say its University of Michigan developers.

The system could provide a more efficient way to remove crude oil from waterways without using additional chemical detergents, or even after detergents have been added, said Anish Tuteja, an assistant professor of materials science and engineering. Tuteja is the corresponding author of a paper on the research published in the Aug. 28 issue of Nature Communications.

The researchers created a filter coating that repels oil but attracts water, bucking conventional materials’ properties. Most natural substances soak up oil, and the few that repel it also repel water because water has a higher surface tension. (more…)

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Shaking out Sugars

Oil Spill Cleanup: Smart Filter Can Strain Oil Out of Water