Word: celles
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...company, plans to put Scott's device, called the Authorizer, into production sometime this fall, charging $10 or so a copy. The gray film, a piece of plastic-coated acoustic ceramic one-ten-thousandth of an inch thick, is for Authorizer's touch pad, to be embedded in a cell phone. To make a credit-card transaction, say, a buyer presses his finger to the touch pad, triggering an imperceptible pulse of energy that makes the film oscillate. The resulting ultrasound image is captured as a digital image file called a biometric identifier, which is a physical feature that...
...current reliance on viruses renders the stem cell lines unsafe for transplantation because the process genetically modifies the reprogrammed cells. But Eggan predicted that researchers would soon fix this shortcoming with a process that instead uses chemicals to reprogram cells...
Though the researchers originally planned to produce disease and patient-specific stem cells using the controversial practice of therapeutic cloning, which requires both a supply of human egg cells and the destruction embryos created to produce the stem cell lines, they opted instead to use a newer technique called "direct reprogramming," which was first unveiled late last year...
Both scientists repeatedly said that research on therapeutic cloning should not be abandoned, in large part because they said it was necessary to test the utility of reprogrammed cells against an embryonic stem cell bench mark...
Despite their insistence, the breakthrough and continuing difficulty in getting the egg cells required for therapeutic cloning suggests that reprogramming may provide greater hope for stem cell therapies...