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Fluorescent dyes and automated cell counters: Towards reliable nuclei quality in single cell genomics

Logos Biosystems
29 Jan 2024

The accurate evaluation of nuclei quality is pivotal for single cell genomics research. Combining fluorescent dyes with imaging tools such as automated cell counters, provides an effective method to evaluate nuclei quality. With a myriad of fluorescent dyes available, choosing the optimal combination to assess nuclei quality is paramount to ensuring the reliability of results. Furthermore, given the advanced capabilities of modern automated cell counters like the LUNA-FX7™ and LUNA-FL™, there is an increasing necessity to understand how these systems perform when integrated with different fluorescent dyes. This application note from Logos Biosystems details a study that aims to identify the most effective dye combinations for nuclei quality assessment using different cell types, different systems, and nuclei fixation. Through comprehensive analysis, Logos Biosystems seeks to offer insights that streamline and enhance the accuracy of nuclei assessment procedures in single cell genomics research settings.

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Fluorescence SpectroscopyFluorometers and spectrofluorometers (also called fluorescence spectrometers) are used to measure the intensity and wavelength of fluorescent light emitted from a sample after excitation by illumination. Spectrofluorometers utilize monochromators to select the desired wavelengths, whereas filter fluorometers employ a set of filters. Spectrofluorometers for measuring steady-state fluorescence and lifetime fluorescence (or time-resolved fluorescence) are available, as well as fluorescence microscopes and microplate readers. Find the best fluorescence spectroscopy products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Genome AnalysisGenomics, the study of genomes, includes functional genomics, evolutionary genomics and comparative genomics. There are many genomic technologies such as DNA sequencing of whole genomes, computational biology and bioinformatics. DNA and nucleic acids must be isolated and concentrated from cells for analysis with kits, automated analyzers and software. Other useful technologies for studying genomics include PCR, microarrays and electrophoresis.BiomarkersBiomarkers are biological markers which can be measured and evaluated to indicate a biological state. The use of biomarkers in research and diagnosis can indicate a normal or disease state or drug response of cells / tissues. Biomarkers include genetic markers, cell surface markers such as antigens, antibodies or receptors and secreted molecules such as cytokines. An assay system is required for identification of biomarkers. :Light MicroscopyLight microscopes or optical microscopes are used to visualize microscale objects under magnification, including cells, clinical specimens and materials. Lab equipment for light microscopy includes confocal microscopes, fluorescence microscopes, zoom and stereo microscopes. Microscope slides and imaging reagents are available for visualizing samples, as well as various microscope stages and incubators for large or temperature-sensitive samples. Find the best light microscopes in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.FluorescenceThe emission of fluorescence occurs when a photon of energy is supplied to a fluorescent chemical compound by an external source, causing it to become excited. Fluorescence can be detected and measured for different purposes using microplate readers, fluorescence microscopes, fluorescence scanners, and flow cytometers.Fluorescence Based AssayFluorescence based assays are widely used in life science research and high-throughput screening to measure a broad range of cellular activities.Fluorescence MicroscopyFluorescence microscopy has become an essential tool in biology, as well as in materials science. The application of many fluorochromes has made it possible to identify cells and sub-microscopic cellular components with a high degree of specificity. Using multiple fluorescence labels, different probes can simultaneously identify several target molecules.GenomicsGenomics is the study of genomes, focusing on the sequencing, analysis, and interpretation of genetic material. It is key in understanding genetic diseases, evolutionary biology, and personalized medicine. Techniques like next-generation sequencing (NGS) are commonly used in genomics research. Browse our peer-reviewed product directory to find the best genomics tools, compare products, check reviews, and get pricing directly from manufacturers.Single Cell Genomics

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Fluorescent dyes and automated cell counters: Towards reliable nuclei quality in single cell genomics