They then made a pinpoint opening in the retina through which they injected fluid to lift up a portion of the retina from the back of the eye.

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Of 34 pet dogs on the proof of concept trial, 23 had the cells transplanted into the injury site - the rest were injected with a neutral fluid.

BBC: Nose cell transplant enables paralysed dogs to walk

Carbo Ceramics ( CRR - news - people )(CRR, 73) , a Houston firm that makes various forms of "proppant, " particles (sand or a synthetic substitute) injected along with the fracking fluid to keep the fissures propped open after the pressure is withdrawn.

FORBES: Energy Under Our Feet

Twenty-two days after an egg is injected with one of the three strains, Chiron workers extract the fluid and isolate and inactivate the viruses.

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