Diatoms (IMAGE) American Chemical Society Caption Researchers report a step toward development of a new type of antibiotic using proteins from marine diatoms. The above diatoms were living between crystals of sea ice in McMurdo Sound, Antarctica. Credit NOAA Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.