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When cells refuse to die
Organisms rid themselves of dangerous cells through apoptosis, programmed cell death. Tumor cells infamously resist death, whether from chemotherapeutic drugs or the body's own immune system. Now researchers have found that the formation of three-dimensional cellular structures confers resistance to apoptosis in both normal and tumor cells. A microlab
to sniff out bioterror By building rugged and inexpensive microfluidic analyzers whose channels are filled with novel monolithic porous polymers, researchers have multiplied the efficiency of these "labs on a chip" in detecting extremely dilute concentrations of microorganisms, proteins, and smaller molecules in the air, soil, and water -- including dangerous toxins and biological weapons. It was a very good year |
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