Nanoscale Diagnostic Sets Sights on Alzheimer's
...ely, the gold-DNA particles and magnetic particles sandwich the biomarker targets. A magnet separates the sandwich complexes from the rest of the sample. The complexes are then heated to release the DNA bar codes, w...New cell transplantation technique restores insulin production in diabetics
... the skin, where the islet cells are injected. The sandwich technique is so-called because of the layered appl...tation is currently an experimental procedure, the sandwich closure is a safe method that prevents many of the complications common to previous techniques used ...Engineers discover why toucan beaks are models of lightweight strength
... "The big surprise was our finding that the beak's sandwich structure also behaves as a high energy impact-absorption system," said Meyers. "Panels that mimic toucan beaks may offer better protection to motorists involved in crashes." Toucans are highly social, noisy residents of rainforests in the Amazon, ...