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cancer cells

OXYGEN DEPRIVATION  Cancer cells (shown in blue) surround a blood vessel (red) in a mouse tumor. Cells on the tumor’s edge are dying, starved of oxygen. But treatments to starve tumors have come up short.

fluorescing dna

LIGHTING UP  When stimulated with light, DNA “blinks” on, making cellular structures (chromosome shown) visible without the need for fluorescent dyes.

castor beans

DANGEROUS BEANS  The potent toxin ricin is found in castor beans (shown). No antidote exists for ricin poisoning, but a new antibody treatment that’s effective in mice could potentially help.

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