In 1995, the company acquired Hybritech, Inc. In 1982, the company merged into SmithKline to form SmithKline Beckman, with Arnold Beckman as vice chairman, but regained its independence in 1989 after SmithKline merged with Beecham Group to form SmithKline Beecham (now part of GlaxoSmithKline). In 1961, Beckman acquired Offner Electronics, a company founded by inventor Franklin F. Because Shockley's aging mother lived in Palo Alto, California, the Shockley Laboratory was established in nearby Mountain View, California, and thus, " Silicon Valley" was born. In 1955, Beckman established the seminal Shockley Semiconductor Laboratory as a division of Beckman Instruments to begin commercializing the semiconductor transistor technology invented by Caltech alumnus William Shockley. The Spinco division went on to design and manufacture a broad range of laboratory centrifuges. In 1954, Beckman Instruments acquired ultracentrifuge maker Spinco (Specialized Instruments Corp.). In the 1950s, the company name changed to Beckman Instruments, Inc. to sell oxygen analyzers, the Helipot precision potentiometer, and spectrophotometers. In the 1940s, Beckman changed the name to Arnold O. Beckman in 1935 as National Technical Laboratories to commercialize a pH meter that he had invented. Circularity measurement helps isolate debris from cells.Founded by Caltech professor Arnold O. Enhanced image magnification provides unparalleled cellular detail. Variable aspiration and mixing cycles optimize results. Auto focus capability increases instrument ease of use. Plus, increased sample throughput with greater efficiency and reduced sample volume results in less reagent use. The Vi-CELL XR offers additional benefits over the S and AS Models, such as extended size range to 2 microns, allowing additional analyses of yeast, and smaller cells. Product features include automation of the standard trypan blue assay, % viability, total cell concentration, total viable cell concentration, mean cell size, real time cellular images, bioprocess monitoring, validated reagents, convenient reagent pak. In comparison, the Vi-CELL automatically performs the trypan blue with video imaging of the flow-through cell. Historically, cell viability determinations were performed manually and has major shortcomings. The Vi-CELL automates the widely accepted trypan blue cell exclusion method.
Cell and tissue culture applications in life science research, including recombinant protein and biopharmaceutical production, require the accuracy, precision and automation available only in the Vi-CELL analyzer. This data is essential to the decision-making process for basic tissue culture cell passage and maintaining optimum culture conditions in bioreactors.
Cell counter beckman coulter series#
The Vi-CELL XR (Extended Range) Series Cell Viability Analyzer provides an automatic and cost effective means to perform the trypan blue dye exclusion method.
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