Portrait of a Chemist: Mario J. Molina – Formation and Decomposition of Ozone

OpenStax Chemistry 2e The 1995 Nobel Prize in Chemistry was shared by Paul J. Crutzen, Mario J. Molina, and F. Sherwood Rowland “for their work in atmospheric chemistry, particularly concerning the formation and decomposition of ozone.” Molina, a Mexican citizen, carried out the majority of his work at the Massachusetts Institute of Technology (MIT). (a) … Continue reading Portrait of a Chemist: Mario J. Molina – Formation and Decomposition of Ozone

Image: T2 Bacteriophages Attacking E. coli [Colorized TEM] by Lee D. Simon

Lee. D. Simon Coloured transmission electron micrograph (TEM) of T2 bacteriophage viruses (orange) attacking an Escherichia coli bacterium. Each phage consists of a large DNA-containing head and a tail composed of a central sheath with several fibres. The fibres attach to the host cell surface, and the phage DNA is injected into the cell through … Continue reading Image: T2 Bacteriophages Attacking E. coli [Colorized TEM] by Lee D. Simon