Synthetic biology is an interdisciplinary field that combines biology, engineering, and computer science to design and construct new biological parts, devices, and systems. It aims to create organisms with specific functions or to modify existing ones for various applications, such as medicine, agriculture, and environmental sustainability. Researchers in synthetic biology often use techniques like genetic engineering and DNA synthesis to manipulate the genetic material of organisms. This allows them to create microorganisms that can produce biofuels, develop new vaccines, or even help clean up pollutants in the environment.