Ants follow Fermat's principle of least time

(Phys.org) —Ants have long been known to choose the shortest of several routes to a food source, but what happens when the shortest route is not the fastest? This situation can occur, for example, when ants are forced to ...

Energy storage device fabricated on a nanowire array

In a vivid demonstration of the progress being made in miniaturizing energy storage devices, a team of engineers from Rice University in Houston, Texas, has fabricated an energy storage device where all essential components ...

Polymers could help enzymes treat diseases

(Phys.org) —Conditions such as celiac disease, phenylketonuria, lactose intolerance and exocrine pancreatic disease involve abnormal enzyme activity. Enzymes administered orally could help sufferers. However, because enzymes, ...

Self-Assembling Gold Nanoparticles Use Light to Kill Tumor Cells

(PhysOrg.com) -- A variety of studies by numerous investigators are demonstrating that gold nanoparticles have real promise as anticancer agents. When irradiated with light, gold nanoparticles become hot quickly, hot enough ...

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Polyethylene

Polyethylene or polythene (IUPAC name polyethene or poly(methylene)) is the most widely used plastic, with an annual production of approximately 80 million metric tons. Its primary use is within packaging (plastic bag, plastic films, geomembranes, etc.).

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