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6 Current white paper about the topic fluorescence

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Characterizing Biotherapeutics with HPLC

Smart Solutions for large Molecules


As demonstrated here, there are a broad range of HPLC applications used in development, production, validation and release of protein therapeutics for human use. Some of the applications mentioned above are mandatory when submitting a new biopharmaceutical to approval at the regulatory agencies. The introduction of the first so-called biosimilars in Europe further increased the demand for highly efficient analysis methods. The continuous development of new stationary phases for the common modes of biochromatography, such as size exclusion, ion exchange and hydrophilic interaction chromatography support biochemists in increasing lab productivity and establishing high-throughput HPLC analysis not only for small molecules but also for large biopolymers...


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alamarBlue® Assay for Assessment of Cell Proliferation using the FLUOstar OPTIMA


The alamarBlue® cell proliferation assay is based on a reducing environment that indicates metabolic active cells. Active cells are able to convert resazurin into the resorufin. Resazurin is blue and non-fluorescent whereas resorufin is red and highly fluorescent; therefore a fluorescent and a colorimetric detection are possible. This application notes focuses on the quantification of cell proliferation in a Human Osteoblast cell culture by measuring alamarBlue® fluorescence on the FLUOstar OPTIMA microplate reader...


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High-Throughput Analysis Using the Novel LightCycler® 1536 Real-Time PCR System


An important trend in biological and biochemical analysis over the past 15 years has been miniaturization and parallelization of analytical procedures. Large-scale high-throughput analysis of gene expression or genetic polymorphisms is an essential element of modern functional genomics, where individual samples are screened against many thousands of target genes. According to its superior sensitivity and accuracy, qPCR is a well-established gold standard for precise profiling of gene expression levels or genotyping of known SNPs...


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A Rapid, Sample-Safe, Evaporative Technique for Preparation of DNA and Oligonucleotide Samples


When working with DNA and oligo samples great care needs to be taken at every stage to ensure that degradation does not occur, and the highly potent samples are not contaminated. Use of state of the art concentration systems can significantly speed up concentration rates, saving researchers time, and also eliminate potential sources of damage to samples...


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Optimization of Transfection Conditions for Gene Expression, siRNA Knock-Down, and Live Cell Imaging Using FuGENE® HD Transfection Reagent


The experimental method of introducing foreign mole­cules into cells is an important tool to facilitate studies in various biological fields. Transfection using lipophilic methods (liposomes or other cationic species) is a convenient means of introducing many different types of molecules (plasmid DNA, RNA, siRNA, and miRNA) into eukaryotic cells [1,2]. However, the optimal condition for incorporation depends on the type of transfection reagent and the cells being used, resulting in variable transfection efficiency and the extent of cell damage caused by transfection....


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Rapid High-Throughput Methylation Analysis Using the LightCycler® 480 System


The LightCycler® 480 Instrument is a versatile platform for molecular studies. We assessed the performance of the instrument combined with the LightCycler® 480 High Resolution Melting Master mix for DNA methylation analysis using the methylation-sensitive high resolution melting (MS-HRM) methodology. This proved to be a robust platform for performing MS-HRM experiments, allowing rapid and high-throughput studies of DNA methylation....


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