Application of Gold Nanosensors to Measure Blood Clotting Agent Application of Gold Nanosensors to Measure Blood Clotting AgentIranian researchers from Shiraz University in association with researchers from Razi Kermanshah University used gold nanoparticles and designed sensors to measure heparin in blood plasmon samples. The sensor is not sensitive to the pH of the environment and it can be used at all pH values, including physiologic pH. It has many applications in clinics and hospitals to diagnose the disease. Heparin plays an important role in the clotting of blood, and its performance depends on its concentration in the blood. Therefore, it is highly important to measure the amount of this material in blood plasmon in patients who suffer from cardiovascular illnesses. Heparin is a polyanion chemical compound that has negative charges. In the previous methods to measure heparin by using gold nanoparticles, the environment pH had to become acidic so the nanoparticles would have