Hemoglobin-like protein absorbs carbon monoxide from the blood Promising antidote: Carbon monoxide poisoning can be fatal – and so far, it can only be treated in hyperbaric chambers. But a newly developed protein could help treat CO poisoning more easily, quickly, and effectively. The new designer protein is based on a bacterial model, resembles our blood hemoglobin, and, unlike previous approaches, has no side effects. The natural protein RcoM served as a template for the de