An exquisite container (re dunked in an ice bath to trigger the ...)

An exquisite container

Date:11/1/2009

re dunked in an ice bath to trigger the polymer to close the pores and trap the dye inside the cages. The cages were then opened again by bathing them in the light of a near-infrared laser. Absorbed light warmed the gold cages above the critical temperature and provoked the polymer's phase change. The polymer collapsed, the cages' pores were exposed, and dye spilled out.

Next the team loaded capsules with doxorubicin, a common chemotherapy drug and, triggering the drug's release with a laser, killed breast cancer cells growing in wells on a plastic plate.

And finally, they loaded the capsules with an enzyme that snips open the cell walls of bacteria and used them to kill a bacterium that is a normal part of the flora of our mouths and throats.

Lucretia, eat your heart out.

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Contact: Diana Lutz
dlutz@wustl.edu
314-935-5272
Washington University in St. Louis
Source:Eurekalert

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An exquisite container

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An exquisite container(re dunked in an ice bath to trigger the ...)