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25 January 2017 Axial tomography in live cell laser microscopy
Verena Richter, Sarah Bruns, Thomas Bruns, Petra Weber, Michael Wagner, Christoph M. Cremer, Herbert Schneckenburger
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Journal of Biomedical Optics, Vol. 22, Issue 9, 091505 (January 2017). https://doi.org/10.1117/1.JBO.22.9.091505
Abstract
Single cell microscopy in a three-dimensional (3-D) environment is reported. Cells are grown in an agarose culture gel, located within microcapillaries and observed from different sides after adaptation of an innovative device for sample rotation. Thus, z-stacks can be recorded by confocal microscopy in different directions and used for illustration in 3-D. This gives additional information, since cells or organelles that appear superimposed in one direction, may be well resolved in another one. The method is tested and validated with single cells expressing a membrane or a mitochondrially associated green fluorescent protein, or cells accumulating fluorescent quantum dots. In addition, axial tomography supports measurements of cellular uptake and distribution of the anticancer drug doxorubicin in the nucleus (2 to 6 h after incubation) or the cytoplasm (24 h). This paper discusses that upon cell rotation an enhanced optical resolution in lateral direction compared to axial direction can be utilized to obtain an improved effective 3-D resolution, which represents an important step toward super-resolution microscopy of living cells.
© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE) 1083-3668/2017/$25.00 © 2017 SPIE
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Verena Richter, Sarah Bruns, Thomas Bruns, Petra Weber, Michael Wagner, Christoph M. Cremer, and Herbert Schneckenburger "Axial tomography in live cell laser microscopy," Journal of Biomedical Optics 22(9), 091505 (25 January 2017). https://doi.org/10.1117/1.JBO.22.9.091505
Received: 11 October 2016; Accepted: 3 January 2017; Published: 25 January 2017
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Cited by 14 scholarly publications and 1 patent.
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KEYWORDS
Microscopy
Tomography
Luminescence
3D image processing
Capillaries
Green fluorescent protein
Objectives
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