1 / 1

Distinguishing almost identical twin molecules

Distinguishing almost identical twin molecules. Monica Olvera , Northwestern University, DMR 1121262.

irina
Download Presentation

Distinguishing almost identical twin molecules

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Distinguishing almost identical twin molecules Monica Olvera, Northwestern University, DMR 1121262 Detecting single molecules is now possible for certain molecules using Surface Enhanced Raman Spectroscopy (SERS), but proving that a signal is due to a single molecule is challenging. In a recent study, MRSEC scientists did this for the molecule crystal violet (CV) by generating a sample that had an equal number of CV molecules mixed with deuteriated CV’s (CV-d0 and CV-d12). The SERS spectra are almost identical, but a few lines are unique to one isotope or the other. By using computational methods to assign the isotopes, it was demonstrated that in most experiments, only one of the two isotopes was present. Kleinman, J. Amer. Chem. Soc. 113, 4115-22

More Related