Biology News Net
RSS 2.0 Feed
Health & Medicine


A computer monitor in the lab of Miguel Nicolelis, M.D., Ph.D., shows the brain activity of a monkey using a brain-machine interface.
Eight people who have spent years paralyzed from spinal cord injuries have regained partial sensation and muscle control in their lower limbs after training with brain-controlled robotics, according to a study published Aug. 11 in Scientific Reports.

Biology


Image of a thin-section through an Orthacanthus coprolite with a black box indicating the tooth of an Orthacanthus.
Scientists have discovered macabre fossil evidence suggesting that 300 million-year-old sharks ate their own young, as fossil poop of adult Orthacanthus sharks contained the tiny teeth of juveniles. These fearsome marine predators used protected coastal lagoons to rear their babies, but it seems they also resorted to cannibalising them when other food sources became scarce.

Health & Medicine

USC researchers have tracked down two Zika proteins potentially responsible for thousands of microcephaly cases in Brazil and elsewhere -- taking one small step toward preventing Zika-infected mothers from birthing babies with abnormally small heads.

Biotechnology


Images of ZnO quantum dots prepared by the Institute of Physical Chemistry of the Polish Academy of Sciences in Warsaw, taken by transmission electron microscopy. False colors.
Unique optical features of quantum dots make them an attractive tool for many applications, from cutting-edge displays to medical imaging. Physical, chemical or biological properties of quantum dots must, however, be adapted to the desired needs. Unfortunately, up to now quantum dots prepared by chemical methods could be functionalized using copper-based click reactions with retention of their luminescence. This obstacle can be ascribed to the fact that copper ions destroy the ability of quantum dots to emit light. Scientists from the Institute of Physical Chemistry of the Polish Academy of Sciences (IPC PAS) in Warsaw and the Faculty of Chemistry of the Warsaw University of Technology (FC WUT) have shown, however, that zinc oxide (ZnO) quantum dots prepared by an original method developed by them, after modification by the click reaction with the participation of copper ions, fully retain their ability to emit light.

Biotechnology


Charles Gersbach, the Rooney Family Associate Professor of Biomedical Engineering and director for the Center of Biomolecular and Tissue Engineering at Duke University.
Researchers have used CRISPR -- a revolutionary new genetic engineering technique -- to convert cells isolated from mouse connective tissue directly into neuronal cells.