Using a birefringent probe particle in variable polarisation optical tweezers to probe properties of biological materials.

Author

Parkin, Simon J. ; Funk, Maren ; Tandy, Kristen ; Nieminen, Timo ; Rubinsztein-Dunlop, Halina ; Heckenberg, Norman

Author_Institution

Sch. of Math. & Phys., Univ. of Queensland, Brisbane, QLD, Australia

fYear

2009

fDate

14-19 June 2009

Firstpage

1

Lastpage

1

Abstract

Probe particles held in force measuring optical tweezers (OT) are being widely used to probe biological fluids, membranes, and living cells. In some cases, the properties of a discrete molecule or microstructure to which the probe is attached are probed. In other cases, as here, it is the viscoelastic properties of the material surrounding the probe which are of interest. These can be deduced from measurements of the response of the probe to a known applied force. Alternatively, measurements of Brownian motion of a trapped particle can give information on the surrounding material.

Keywords

light polarisation; radiation pressure; Brownian motion; biological fluids; biological materials; birefringent probe particle; discrete molecule; force measuring optical tweezers; probe properties; surrounding material; variable polarisation optical tweezers t; Biological materials; Biomedical optical imaging; Biomembranes; Birefringence; Cells (biology); Force measurement; Microstructure; Optical polarization; Particle measurements; Probes;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on

Conference_Location

Munich

Print_ISBN

978-1-4244-4079-5

Electronic_ISBN

978-1-4244-4080-1

Type

conf

DOI

10.1109/CLEOE-EQEC.2009.5192883

Filename

5192883