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Technology update

Sep 16, 2008

Nanoparticles speed PDT drug delivery

A technique that speeds the delivery of light-sensitizing drugs for photodynamic therapy (PDT) from days to hours has been reported by researchers at Case Western Reserve University (Cleveland, OH). PDT - an alternative to conventional cancer treatments - involves the injection of a photosensitizing agent that's transported to the tumour via the circulatory system. Upon irradiation of the tumour with an appropriate wavelength of light, the agent produces reactive oxygen species that kill the malignant cells.

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