College of Chemistry

Scientists have discovered hundreds of unusually large, bacteria-killing viruses with capabilities normally associated with living organisms, blurring the line between living microbes and viral machines as reported in new research findings in Nature. These phages — short for bacteriophages, so-called because they “eat” bacteria — are of a size and complexity considered typical of life, carry numerous genes normally found in bacteria and use these genes against their bacterial hosts.

New research reported from the lab of Markita Landry announces scientists could make genetically engineering any type of plant—in particular, gene editing with CRISPR-Cas9—simple and quick. To deliver a gene, the researchers grafted it onto a carbon nanotube, which is tiny enough to slip easily through a plant’s tough cell wall. To date, most genetic engineering of plants is done by firing genes into the tissue—a process known as biolistics—or delivering genes via bacteria. Both are successful only a small percentage of the time, which is a major limitation for scientists seeking to create disease - or drought-resistant crops or to engineer plants so they’re more easily converted to biofuels.

The College of Chemistry is pleased to announce that the American Physical Society (APS) has elected Naomi Ginsberg, Associate Professor of Chemistry and Physics, as a Fellow for 2021. Prof. Ginsberg has been elected for the "innovative development of spatiotemporally resolved imaging and spectroscopy methods...

The DNA-cutting proteins central to CRISPR-Cas9 and related gene-editing tools originally came from bacteria, but a newfound variety of Cas proteins apparently evolved in viruses that infect bacteria. The new Cas proteins were found in the largest known bacteria-infecting viruses, called bacteriophages, and are the most compact working Cas variants yet discovered — half the size of today’s workhorse, Cas9.