Nano-bubbles containing ACE2 protein can hinder contamination from wide strains of SARS-CoV-2 Kumar Jeetendra | January 21, 2022 Northwestern Medicine and The University of Texas MD Anderson Cancer Center discovered that natural nano-bubbles containing ACE2 protein (evACE2) were found in the blood of COVID-19 victims. They also discovered that these particles could block infection by broad strains of SARS/CoV-2 virus. Scientists said that the evACE2 acts in the body as a decoy and …