Second harmonic imaging microscopy of living cells

Paul J. Campagnola; Heather A. Clark; William A. Mohler; Aaron Lewis; Leslie M. Loew

doi:10.1117/1.1383294

1 July 2001 Second harmonic imaging microscopy of living cells

Paul J. Campagnola, Heather A. Clark, William A. Mohler, Aaron Lewis, Leslie M. Loew

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Journal of Biomedical Optics, Vol. 6, Issue 3, (July 2001). https://doi.org/10.1117/1.1383294

Second harmonic generation (SHG) has been developed in our laboratories as a high-resolution nonlinear optical imaging microscopy for cellular membranes and intact tissues. SHG shares many of the advantageous features for microscopy of another more established nonlinear optical technique: two-photon excited fluorescence (TPEF). Both are capable of optical sectioning to produce threedimensional images of thick specimens and both result in less photodamage to living tissue than confocal microscopy. SHG is complementary to TPEF in that it uses a different contrast mechanism and is most easily detected in the transmitted light optical path. It can be used to image membrane probes with high membrane specificity and displays extraordinary sensitivity in reporting membrane potential; it also has the ability to image highly ordered structural proteins without any exogenous labels.

©(2001) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Paul J. Campagnola, Heather A. Clark, William A. Mohler, Aaron Lewis, and Leslie M. Loew "Second harmonic imaging microscopy of living cells," Journal of Biomedical Optics 6(3), (1 July 2001). https://doi.org/10.1117/1.1383294

Published: 1 July 2001

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KEYWORDS

Second-harmonic generation

Luminescence

Chromophores

Gold

Scanning helium ion microscopy

Microscopy

Particles

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