Word: polymerize
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To solve the problem, Langer and his colleagues reconfigured the structure of polymers to enable drugs to be dispensed in measured doses. Explains Langer: "Because its route is so tortuous, the drug gets out, but slowly." Langer is now testing an injectable system for diabetics in which enzymes sensitive to...
While the polymer and spray systems stress control and timing, others -- such as those being tested at the Cancer Research Institute of the University of California at San Francisco -- attempt to deliver specific drugs to specific cells. To accomplish this, microscopic bubbles of fat, called liposomes, are filled with a...
Not all of the new delivery systems are directed at life-threatening diseases. Scientists at Advanced Polymer Systems of Redwood City, Calif., have turned to a more consumer-oriented line: synthetic microsponges averaging one- thousandth of an inch in size and containing 10 ft. to 20 ft. of drug- filled...
The key to such a marathon would clearly be a lightweight, efficient, flying fuel tank. Eighteen months and many sketches later, when Voyager assumed its basic shape, it was a textbook example of featherweight design and construction. The shell is made from quarter-inch-thick panels of Hexcel honeycomb, a...
Noel Koch, a Deputy Assistant Secretary of Defense, recently left his Pentagon office toting an overnight bag and rode to Washington's National Airport. Koch breezed through three airport metal detectors and into the departure lounge. That was as far as he planned to go. Inside his carry-on bag...