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Micrograph of paper autofluorescing under ultraviolet illumination. The individual fibres in this sample are around 10 μm in diameter.. Autofluorescence is the natural fluorescence of biological structures such as mitochondria and lysosomes, in contrast to fluorescence originating from artificially added fluorescent markers (fluorophores).
“As the first company to offer the ESP Detection Option on a cell sorter, we are setting a new standard for small particle research,” said Ming Yan, Ph.D., CTO of Cytek Biosciences. “The enhanced capabilities of our Cytek Aurora CS system not only push the boundaries of scientific discovery but also may open up new markets for Cytek.
Extraction Profile for Different Types of Extraction. The extraction curve of % recovery against time can be used to elucidate the type of extraction occurring. Figure 4(a) shows a typical diffusion controlled curve. The extraction is initially rapid, until the concentration at the surface drops to zero, and the rate then becomes much slower.
Brightfield DIC image showing guard cells and pavement cells (above). Same region showing Chlorophyll A autofluorescence with 440 nm laser excitation and far red emission (below). Microscopic images of a moss leaf from Plagiomnium undulatum. Bright-field microscopy at the top and fluorescence microscopy at the bottom. The red fluorescence is ...
Laboratory-scale liquid-liquid extraction. Photograph of a separatory funnel in a laboratory scale extraction of 2 immiscible liquids: liquids are a diethyl ether upper phase, and a lower aqueous phase. Soxhlet extractor. Extraction in chemistry is a separation process consisting of the separation of a substance from a matrix. The distribution ...
In cytometry, compensation is a mathematical correction of a signal overlap between the channels of the emission spectra of different fluorochromes. [1] [2]The photons emitted by fluorochromes have different energies and wavelengths and as flow cytometers use photomultiplier tubes (PMT) in order to convert the photons into electrons, the detector can register the signal from more than one ...
Cold water extraction (also called CWE) is the process whereby a substance is extracted from a mixture via cold water. It is a type of fractional crystallization . The process generally involves taking a mixture of substances, dissolving them in warm water, and then rapidly cooling the mixture.
The structure of the silicon APD. An avalanche photodiode (APD) is a highly sensitive type of photodiode, which in general are semiconductor diodes that convert light into electricity via interband excitation coupled with impact ionization.