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EMCCDs Article Electron Multiplying Charge-Coupled Devices (EMCCDs)

By incorporating on-chip multiplication gain, the electron multiplying CCD achieves, in an all solid-state sensor, the single-photon detection sensitivity typical of intensified or electron-bombarded CCDs at much lower cost and without compromising the quantum efficiency and resolution characteristics of the conventional CCD structure.

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Fluorescence Microscopy Digital Image Gallery
Bovine Pulmonary Artery Endothelial Cells (BPAE Line)
Bovine Pulmonary Artery Endothelial Cells (BPAE Line)

A culture of BPAE cells was fixed, permeabilized, and blocked with 10-percent normal goat serum in phosphate-buffered saline prior to immunofluorescent labeling with rabbit primary antibodies to giantin, a protein resident in the Golgi complex of mammalian cells. The culture was subsequently stained with a mixture of goat anti-rabbit secondary antibody fragments (heavy and light chain) conjugated to Alexa Fluor 488. In addition, the cells were labeled with Alexa Fluor 568 conjugated to phalloidin (targeting the filamentous actin network), and for DNA with Hoechst 33342. Images were recorded in grayscale with a Hamamatsu ORCA-AG camera system coupled to an Olympus BX-51 microscope equipped with bandpass emission fluorescence filter optical blocks provided by Semrock. During the processing stage, individual image channels were pseudocolored with RGB values corresponding to each of the fluorophore emission spectral profiles.


View a larger image of the BPAE cells.