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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…)

Filters Do Not Lower Mortality Rate in Most Embolism Cases

EAST LANSING, Mich. — A filter used to block clots from passing from the veins in the legs to the arteries of the lung does not improve mortality rates for most patients suffering a pulmonary embolism. However, if a patient is unstable – in shock or requires a ventilator – filters can save lives.

Furthermore, for unstable patients with a pulmonary embolism, it is crucial they receive clot-dissolving medications known as thrombolytic therapy.

The findings come from a set of three research articles on pulmonary embolism treatment published by Michigan State University’s Paul Stein in the May edition of the American Journal of Medicine. The findings are based on a study of more than two million patients suffering from the sometimes deadly clots that travel to the lungs and block arteries. (more…)

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

Filters Do Not Lower Mortality Rate in Most Embolism Cases