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Image of several 4.5 µm diameter, latex microspheres
arranged using optical tweezers.
Optical
Tweezers
Research in our group follows two directions: biological adhesion
at the level of single and multiple bonds, and development of techniques for
the use of lipid or polymer vesicles as micro-reaction containers. The
experimental tools we employ are a dual optical trap-system and a laser
microbeam used in conjuction with various fluorescence techniques.
Recent and current experimental work in our group includes:
- "Polymerosomes," polymer bilayer vesicles for
micro-reaction purposes
- Liposomes, optical manipulation and fusion
- Antibody-antigen binding, real time measurements
- OPTCOL, interactions between red blood cells and
virus coated microspheres
Laser
Cooling and Trapping Group | Atomic
Physics Division
  Inquiries or comments:
Kristian.Helmerson@nist.gov
Online: May 1998 - Last update: August 2007
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