Blood Clots Seize Endotoxin (video) University of California - Davis Loading video... Caption This video shows blood clot (red) forming and absorbing lipopolysaccharide (endotoxin) (colored green) in a live mouse. The clot-bound toxin is yellow. Pieces can be seen breaking away in the blood stream. Credit Peter Armstrong, UC Davis. Usage Restrictions May be used with acknowledgement of the source. 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.