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Stretching red blood cells with optical tweezers

Smart, TJ; Richards, CJ; Agrawal, R; Jones, PH; (2017) Stretching red blood cells with optical tweezers. In: Proceedings of the 2017 Optical Trapping Applications. (pp. OtM4E.6-OtM4E.6). OSA Publishing: San Diego, CA, USA. Green open access

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Abstract

In this work we report on experiments to measure the deformability of red blood cells (RBCs) when subject to stretching with optical tweezers. Individual red blood cells are trapped directly in a dual optical tweezers, and subject to a stretching protocol that is the same for all cells under test. Differences in the resulting extension are therefore indicative of differences in cell deformability. The targets for investigation are RBCs taken from patients with type 2 diabetes mellitus (T2DM) who exhibit diabetic retinopathy (DR), and from patients with birdshot chorioretinopathy (BCR). We find a statistically significant change in deformability for RBCs from DR patients compared to a control group, but no significant change for BCR patients. These results offer support to the importance of the role of RBC biomechanical properties in the progress of these conditions.

Type: Proceedings paper
Title: Stretching red blood cells with optical tweezers
Event: Optical Trapping Applications
ISBN-13: 9781557528209
Open access status: An open access version is available from UCL Discovery
DOI: 10.1364/OTA.2017.OtM4E.6
Publisher version: http://dx.doi.org/10.1364/OTA.2017.OtM4E.6
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Institute of Ophthalmology
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/10059299
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