Targeson is a biotechnology company that develops, manufactures, and markets ultrasound contrast agent technologies for pre-clinical molecular imaging in animal models. The company has engineered a versatile microsphere platform that may be used as both a contrast agent and, in a slightly modified form, a drug or gene delivery agent for research applications. Targeson manufactures and sells the Targestar®and Visistar®lines of contrast agents for ultrasound-based molecular and perfusion imaging in animal models of disease and Targesphere® an acoustic transfection agent. Targeson’s agents can be readily targeted to the unique molecular signature of many diseases, and can be used to detect pathophysiology on the molecular level. The company’s innovative intellectual property enables the agents to bind with high efficiency to the intended molecular targets. Targeson is headquartered in San Diego, CA.