Single-cell diffraction tomography with optofluidic rotation about a tilted axis
Mueller P, Schuermann M, Chan CJ, Guck J (2015)
Publication Type: Conference contribution
Publication year: 2015
Journal
Publisher: SPIE
Book Volume: 9548
Conference Proceedings Title: Proceedings of SPIE - The International Society for Optical Engineering
Event location: San Diego, CA, USA
ISBN: 9781628417142
DOI: 10.1117/12.2191501
Abstract
Optical diffraction tomography (ODT) is a tomographic technique that can be used to measure the three-dimensional (3D) refractive index distribution within living cells without the requirement of any marker. In principle, ODT can be regarded as a generalization of optical projection tomography which is equivalent to computerized tomography (CT). Both optical tomographic techniques require projection-phase images of cells measured at multiple angles. However, the reconstruction of the 3D refractive index distribution post-measurement differs for the two techniques. It is known that ODT yields better results than projection tomography, because it takes into account diffraction of the imaging light due to the refractive index structure of the sample. Here, we apply ODT to biological cells in a microfluidic chip which combines optical trapping and microfluidic flow to achieve an optofluidic single-cell rotation. In particular, we address the problem that arises when the trapped cell is not rotating about an axis perpendicular to the imaging plane, but is instead arbitrarily tilted. In this paper we show that the 3D reconstruction can be improved by taking into account such a tilted rotational axis in the reconstruction process.
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Germany (DE)How to cite
APA:
Mueller, P., Schuermann, M., Chan, C.J., & Guck, J. (2015). Single-cell diffraction tomography with optofluidic rotation about a tilted axis. In Gabriel C. Spalding, Kishan Dholakia, Kishan Dholakia, Gabriel C. Spalding (Eds.), Proceedings of SPIE - The International Society for Optical Engineering. San Diego, CA, USA: SPIE.
MLA:
Mueller, Paul, et al. "Single-cell diffraction tomography with optofluidic rotation about a tilted axis." Proceedings of the Optical Trapping and Optical Micromanipulation XII, San Diego, CA, USA Ed. Gabriel C. Spalding, Kishan Dholakia, Kishan Dholakia, Gabriel C. Spalding, SPIE, 2015.
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