Fig. 2 (IMAGE) Osaka University Caption Time-lapse 3D SERS imaging of small-molecule uptake by live cells. We successfully observed that the SERS signals of alkynes were initially detected around 10?15 min after drug administration, and the number of the signals gradually increased over time. The drug administration concentration was 20 μM. Credit Osaka University Usage Restrictions None License Licensed 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.