Extracellular vesicles (EVs) carry molecular cargo that includes nucleic acids, lipids, proteins, and various other biomarkers. Raman and SERS spectroscopy are label-free spectroscopy techniques based on inelastic scattering of laser light interacting with molecular vibrations. In our study, we employed Raman and SERS spectroscopy for the detection of amyloid beta protein in the molecular cargo of small EVs and bulk chemical analysis of EVs. We observed considerable variation as a reflection of the biochemical content of EVs related to the Aβ peptide incorporated in EVs extracted from the AD cell culture model. Next, we developed a new CMOS-based sensing platform for trapping, imaging, and chemical characterization of EVs via SERS (CMOS TrICC) with the experimental enhancement factor 5.0 × 104. We employed this platform for parallel trapping and sensitive biochemical analysis of the 100 nm nanospheres and EVs.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.