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Force microscopy with arbitrary optically-trapped probes and application to internal mechanics of cells (2014–2017)

Abstract:
The ability to perform micromanipulation on particles, macromolecules, subcellular organelles, or whole cells is fundamental in elucidating processes such as chromosome movement during cell division, and movement of cell components in and out of the cell. The recent advances in optical tweezers have allowed this type of micromanipulation to approach reality. However, determination of the true optical force is critical for this technique to reach its full potential. We will develop novel techniques to quantitatively determine the absolute optical force applied to the cell component using the process of ingestion (phagocytosis) as a proof-of-principle test, and measure forces in chromosome movement and vesicle transport within cells.
Grant type:
ARC Discovery Projects
Researchers:

  • Professor Halina Rubinsztein-Dunlop

    Professor
    School of Mathematics and Physics
    Faculty of Science
    Affiliate Professor
    Australian Institute for Bioengineering and Nanotechnology

  • Dr Timo Nieminen

    Senior Lecturer
    School of Mathematics and Physics
    Faculty of Science
Funded by:
Australian Research Council