Skip to main content
School of Physical and Chemical Sciences
  1. School of Physical and Chemical Sciences
  2. News and Events
  3. Events
  4. Events 2023

CMP Seminar - Yuhan Ma

When: Thursday, December 7, 2023, 2:00 PM - 3:00 PM
Where: G. O Jones Building, Room 516, Mile End

Speaker: Yuhan Ma

Super-resolution and surface enhanced Raman scattering researches based on DNA origami hybrid nanostructures

DNA origami structures were chosen to assemble semiconductor quantum dots due to its nanoscale precision and compatibility to modification. We made around 44.8% linking efficiency of DNA origami-QD hybrid nanostructure and achieved a sub 60 nm super-resolution imaging through custom-built optical diffraction microscope system. In addition, a SERS substrate composed of multiple layers of sub 5 nm gold nanoparticle (AuNP) films was prepared, which increased the Raman signal of carbon dots by up to dozens of times in experiments and additional substrates using larger AuNPs and DNA origami-AuNPs hybrid nanostructure are in preparation.

Back to top