1 November 2005 Atomic force-multi-optical imaging integrated microscope for monitoring molecular dynamics in live cells
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J. of Biomedical Optics, 10(6), 064023 (2005). doi:10.1117/1.2146963
Abstract
A novel hybrid imaging system is constructed integrating atomic force microscopy (AFM) with a combination of optical imaging techniques that offer high spatial resolution. The main application of this instrument (the NanoFluor microscope) is the study of mechanotransduction with an emphasis on extracellular matrix-integrin-cytoskeletal interactions and their role in the cellular responses to changes in external chemical and mechanical factors. The AFM allows the quantitative assessment of cytoskeletal changes, binding probability, adhesion forces, and micromechanical properties of the cells, while the optical imaging applications allow thin sectioning of the cell body at the coverslip-cell interface, permitting the study of focal adhesions using total internal reflection fluorescence (TIRF) and internal reflection microscopy (IRM). Combined AFM-optical imaging experiments show that mechanical stimulation at the apical surface of cells induces a force-generating cytoskeletal response, resulting in focal contact reorganization on the basal surface that can be monitored in real time. The NanoFluor system is also equipped with a novel mechanically aligned dual camera acquisition system for synthesized Forster resonance energy transfer (FRET). The integrated NanoFluor microscope system is described, including its characteristics, applications, and limitations.
Andreea Trache, Gerald A. Meininger, "Atomic force-multi-optical imaging integrated microscope for monitoring molecular dynamics in live cells," Journal of Biomedical Optics 10(6), 064023 (1 November 2005). http://dx.doi.org/10.1117/1.2146963
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KEYWORDS
Atomic force microscopy

Microscopes

Imaging systems

Fluorescence resonance energy transfer

Luminescence

Optical filters

Cameras

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