Modeling the trail of nicotine particles (IMAGE) American Institute of Physics Caption Researchers modeled the trail of nicotine particles that are released from the mouth, nose, and cigarette. Credit Younes Bakhshan Usage Restrictions Journalists may use this image only with appropriate credit and when reporting on this research. License Original content 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.