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Denovix | Comparing Hemocytometers and Automated Cell Counters
Written by Ben Capozzoli, DeNovix Application Scientist Since the invention of the hemocytometer counting chamber in 1874, biologists have been quantifying cells dispensed into the chamber of the slide through manual inspection under a microscope. These quantifications rely on knowing the exact volume in which you are counting. The following equation is used to translate […]
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Denovix | Is Erythrosin B a Better Choice than Trypan Blue for Cell Counting?
Written by Famatta Perry, PhD Cell counting is important for reproducible and accurate documentation of cell concentrations and viability, which can be used in a series of research, medical and biotechnological applications. Despite numerous documented issues with and limitations of Trypan Blue, it is still widely used in many research labs. This article aims to […]
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Denovix | Flow Cytometry and Image-Based Cell Counting: Complementary Technologies to Achieve Accurate Cell Quantifications and Characterizations
Written by Ben Capozzoli, DeNovix Application Scientist Understanding the number and characteristics of a given cell population is paramount to many cell/molecular biology studies. Many fields, like immunology, rely heavily upon the ability to quantify the number of cells in a population and the various characteristics those cells possess. Hemocytometers: A Traditional Cell Counting Method […]
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Denovix | How to Determine Cell Density of Microbial Cultures with OD600 Measurements and Factors
Written by Rachel Kennel, DeNovix Application Scientist The measurement of optical density (OD) at 600 nm is a common spectrophotometric method to determine the density of a bacterial or yeast culture, commonly during phases of bacterial or yeast growth. An OD600 measurement is a quick and convenient way to determine density for cells, which are […]
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Lucigen | Set up and walk away: same day targeted genotyping
Accelerate breeding programmes with high-speed, high-throughput NGS workflows Designing molecular breeding programmes to screen for desirable traits in plants and livestock can accelerate breeding cycles and enable precise genotype selection. But processing thousands of samples — with potentially complex genomes or difficult sample types — to deliver results within critical breeding windows is a major […]
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Lucigen | Ditch the spin columns without compromising on nucleic acid quality
Whether you’re working with samples for PCR or sequencing, it’s worth questioning what type of extraction or purification method would work well with your downstream application. Are there potential time and cost efficiencies? Do you need ultra-pure nucleic acid, or will a simple crude prep do the job just as well? There are a few […]
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Lucigen | How to design mRNA therapeutics for scalable success
The recent Nobel Prize awarded to Katalin Karikó and Drew Weissman underlined the impact their breakthroughs in mRNA technology had in combating COVID-19. This new class of therapeutics is poised to have an increasingly important role in the future of healthcare. This blog post outlines some of the considerations for the design, production and purity […]
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Lucigen | How to select an effective nucleic acid isolation method for human diagnostics.
Molecular testing protocols for pathogen detection and diagnosing human diseases require reliable and high-quality isolation of genetic material from diverse sample types. There are many extraction and purification technologies available and choosing the right one for your needs requires some planning and evaluation. Before deciding which isolation method best suits your needs, you may wish […]
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Lucigen | Molecular marvels: choosing the most suitable reverse transcriptase
Image credit: HIV Reverse Transcriptase. RCSB Protein Data Bank. The Wellcome Collection. Reverse transcriptases (RTs) are enzymes that can generate complementary DNA (cDNA) from an RNA template. RTs are RNA-dependent DNA polymerases, which were initially discovered in retroviruses. They now have widespread applications in various molecular biology techniques used for biomedical research and molecular diagnostics. […]
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Lucigen | How to choose the right competent cells for phage display
Since Humira (adalimumab) became the first approved monoclonal antibody therapy developed using phage display in 2002, it has sold more than any other drug in history.1,2 Phage display is a technique that allows for screening astronomical numbers of proteins for potent binders, and it is now one of the most powerful ways of creating high-affinity […]
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