Infrared scanning near-field optical microscopy is used to detect AMPA-type glutamate receptor clusters in hippocampal neuron cells. AMPA's GluR2-subunits were marked with the fluorophore Alexa488 and high-resolution micrographs were taken at 6.25 ?m wavelength, corresponding to the maker's strong infrared absorption. The use of infrared light avoids photobleaching and makes this approach suitable for long-term observations; this technique can be used in general to localize different IR-absorbing molecules over the complex background of other cell components. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.
AMPA receptor imaging by infrared scanning near-field optical microscopy
Cricenti A;Cricenti A
2008
Abstract
Infrared scanning near-field optical microscopy is used to detect AMPA-type glutamate receptor clusters in hippocampal neuron cells. AMPA's GluR2-subunits were marked with the fluorophore Alexa488 and high-resolution micrographs were taken at 6.25 ?m wavelength, corresponding to the maker's strong infrared absorption. The use of infrared light avoids photobleaching and makes this approach suitable for long-term observations; this technique can be used in general to localize different IR-absorbing molecules over the complex background of other cell components. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.File in questo prodotto:
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