ResourceLife Sciences
Transfection Optimization Using Expression Analysis
25 Jan 2013Optimization of cell transfection typically includes determining the optimum mass of plasmid to be transfected and the time point after transfection that provides the maximum expression. Too much plasmid can be toxic and lead to compromised cell growth; too little plasmid will reduce the overall transfection efficiency. In this application note it is shown the Celigo cytometer from Brooks Life Science Systems enables cell-based fluorescence quantification in a variety of multi-well formats and flasks without the requirement for counterstains. Cells can be left undisturbed in the plate or flask, imaged within 20-30 minutes, depending on the format, and then returned to the incubator for continued culturing. This facilitates time-course studies, such as monitoring fluorescence after a transient transfection, dramatically reducing the effort and time to perform the experiments.
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Cell / Tissue CultureCell culture or tissue culture is used to study the biology of cells or tissues and to isolate cellular products in an environment which can be manipulated and well defined. Accurately control your culture environment with bioreactors or culture incubators, bind your cells to a surface or together with an extracellular matrix. Distinguish cell types with differential media or proliferate cells with certain characteristics using selective media. Enrich your media with supplements such as growth factors, sera and vitamins. Find the best cell and tissue culture products, kits and equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.MicroplatesMicroplates are multi-well plates used to increase the throughput of biological investigations. The number of wells microplates contain can range from 6 to 3243 wells, with the 96-well format being the most commonly used. Microplates can come tailored for a range of applications including cell culture, PCR, filtration, storage, non-binding surface, protein crystallization, as well as pre-coated, deep well and normal Standard microplates. Additionally, options for microplate colors include clear , black, white or black with clear bottom and white with clear bottom for absorbance microplate reader applications. Find the best microplates for your lab in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Flow Cytometry / Cell CountingFlow cytometers are used to count, sort and examine multiple characteristics of cells. Other cell analysis equipment includes image cytometers, cell counters, fluorescence-activated cell sorters (FACS), magnetic-activated cell sorters (MACS), and a range of flow cytometry assay kits. Flow cytometers can reveal information on cell viability, cell proliferation, apoptosis and cell cycle progression, as well as identify cell populations and intracellular or cell-surface molecules. Additionally, some flow cytometers, known as FACS, have an additional sorting function after analysis. Cell counters and image cytometers count live and dead cell populations and can also conduct cell proliferation assays. Find the best flow cytometers, cell counters and cell sorters in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Cell-Based AssaysCell-based assays are used to monitor the presence, quantity and activities of a desired cellular analyte including drug molecules or biomarkers. This can reveal information on cell health (apoptosis, cytotoxicity, viability and proliferation assays), cell metabolism, cell migration and cell signaling mechanisms. Find the best cell-based assay products, kits and equipment with our peer reviewed product directory: compare products, check customer reviews and receiving pricing direct from manufacturers.Protein PurificationProtein purification is a vital step in drug discovery, therapeutics, biotech and life science research. The purification process typically involves subcellular or membrane protein extraction with cell lysis kits, separation of proteins from cell debris by filtration or spin columns, and the isolation of proteins of interest from other proteins and impurities with affinity purification (including fusion protein tags and antibody binding proteins A, G and L), immunoprecipitation or chromatographic methods, such as ion exchange, size exclusion and immobilized metal affinity chromatography. All purification methods come in multiple formats for your laboratory needs, including agarose or magnetic beads, resins, columns and filter plates. Find the best protein purification equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Gene Expression and Molecular CloningMolecular cloning is a set of techniques that utilizes vectors to transfer recombinant DNA into host cells and is an essential tool for investigating the expression of genes and proteins in bacterial or mammalian cells. A variety of vectors optimized for gene cloning and expression in a range of host organisms are available, alongside competent cells for genetic replication. Here, you can explore a range of molecular tools, high-quality genomic and cDNA libraries, premade clones, transformation and transfection reagents and mutagenesis or gene expression detection assays and expression arrays. Find the best gene expression and molecular cloning products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Plate ProcessingAutomated plate processing is used in microplate technologies for high-throughput, speed and efficiency. Plate processing systems include microplate handlers for moving plates, heat sealers, stackers and carousels for storage, retrieval and delivery, microplate washers and piercers. Useful features of plate processors include walk-away automation, compatibility and easy integration with microplate systems.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.TransfectionTransfection introduces nucleic acids (DNA or RNA) into cells, facilitating gene expression, genome editing, and functional studies. It�s widely used in genetic research, drug discovery, and therapeutic development. Find transfection reagents, kits, and systems in our product directory with reviews and pricing options.Fluorescence Based AssayFluorescence based assays are widely used in life science research and high-throughput screening to measure a broad range of cellular activities.CytometryCytometry is a broad term for the quantitative analysis of cells and cell systems. The most popular methods to study cytometry are flow cytometry and image cytometry.Cell AnalysisThe analysis of cells allows researchers to understand the factors which contribute to cell health and function. These influencing processes can then be predicted and altered, leading to the development of medication and disease treatments.Cell GrowthCell growth refers to the process by which cells increase in size and number. It is essential for tissue development, wound healing, and cancer research. Understanding and controlling cell growth is a fundamental part of cell biology and regenerative medicine. Browse our peer-reviewed product directory to find the best tools for studying cell growth, compare products, check reviews, and get pricing directly from manufacturers.Cell-Based Platform