Optical tractor beam traps bacteria

Until recently, if scientists wanted to study blood cells, algae, or bacteria under the microscope, they had to mount these cells on a substrate such as a glass slide. Physicists at Bielefeld and Frankfurt Universities have ...

DNA replication under the microscope

Cryogenic electron microscopy (cryo-EM) has enabled researchers to study how the DNA replication machinery assembles at sites where DNA is damaged.

Artificial cells are tiny bacteria fighters

"Lego block" artificial cells that can kill bacteria have been created by researchers at the University of California, Davis Department of Biomedical Engineering. The work is reported Aug. 29 in the journal ACS Applied Materials ...

How do cells acquire their shapes? A new mechanism identified

Working with light to activate processes within genetically modified fission yeast cells is among the research performed by the experimental biologists in the Martin Lab at the University of Lausanne, led by faculty member ...

Tooth loss in birds occurred about 116 million years ago

The absence of teeth or "edentulism" has evolved on multiple occasions within vertebrates including birds, turtles, and a few groups of mammals such as anteaters, baleen whales and pangolins. Where early birds are concerned, ...

Facebook shows new ways to chat, stream video

Looking for new ways to engage with its audience, Facebook says people who use its Messenger chat service will soon be able to order flowers, shop for shoes and talk with a variety of businesses by sending them direct text ...

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