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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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Indian Muntjac Deer Skin Fibroblast Cells
The culture of Muntjac cells illustrated above was triple-labeled using double immunofluorescence and a phallotoxin. Nuclei were visualized with mouse anti-histones (core) primary antibodies, while the Golgi complex was stained with rabbit anti-giantin antibodies. Secondary antibodies were goat anti-mouse and anti-rabbit conjugated to Texas Red and Oregon Green 488, respectively to produce red nuclei and green Golgi cisternae. The filamentous actin network was counterstained with Alexa Fluor 350 conjugated to phalloidin. 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.