DNA computation performed in a living cell:
'Chemists from North Carolina State University have performed a DNA-based logic-gate operation within a human cell. The research may pave the way to more complicated computations in live cells, as well as new methods of disease detection and treatment.'
720-square-kilometre iceberg breaks away in the Antarctic:
'On July 8, 2013, a huge area of the ice shelf broke away from the Pine Island glacier, the longest and fastest flowing glacier in the Antarctic, and is now floating in the Amundsen Sea in the form of a very large iceberg.'
'For the Western Antarctic ice shelf, an even faster flow of the Pine Island glacier would presumably have serious consequences. "The Western Antarctic land ice is on land which is deeper than sea level. Its "bed" tends towards the land. The danger therefore exists that these large ice masses will become unstable and will start to slide," says Angelika Humbert. If the entire West Antarctic ice shield were to flow into the Ocean, this would lead to a global rise in sea level of around 3.3 metres.'
Graphene can damage cells:
'Researchers from Brown University have shown how tiny graphene microsheets -- ultra-thin materials with a number of commercial applications -- could be big trouble for human cells.
'The research shows that sharp corners and jagged protrusions along the edges of graphene sheets can easily pierce cell membranes. After the membrane is pierced, an entire graphene sheet can be pulled inside the cell where it may disrupt normal function.'
'Chemists from North Carolina State University have performed a DNA-based logic-gate operation within a human cell. The research may pave the way to more complicated computations in live cells, as well as new methods of disease detection and treatment.'
720-square-kilometre iceberg breaks away in the Antarctic:
'On July 8, 2013, a huge area of the ice shelf broke away from the Pine Island glacier, the longest and fastest flowing glacier in the Antarctic, and is now floating in the Amundsen Sea in the form of a very large iceberg.'
'For the Western Antarctic ice shelf, an even faster flow of the Pine Island glacier would presumably have serious consequences. "The Western Antarctic land ice is on land which is deeper than sea level. Its "bed" tends towards the land. The danger therefore exists that these large ice masses will become unstable and will start to slide," says Angelika Humbert. If the entire West Antarctic ice shield were to flow into the Ocean, this would lead to a global rise in sea level of around 3.3 metres.'
Graphene can damage cells:
'Researchers from Brown University have shown how tiny graphene microsheets -- ultra-thin materials with a number of commercial applications -- could be big trouble for human cells.
'The research shows that sharp corners and jagged protrusions along the edges of graphene sheets can easily pierce cell membranes. After the membrane is pierced, an entire graphene sheet can be pulled inside the cell where it may disrupt normal function.'