342 Risultati per: "EDVOTEK"

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Attività di apprendimento, Microbiology, Applicazione: Microbiologia

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Cancer cells differ from normal cells by the combinations of proteins that are present on their surfaces. Antibodies against these proteins will specifically bind to cancer cells and not to normal cells. This allows early detection of cancer and potentially a way of delivering cancer therapies. In this simulation experiment the reaction of cancer cell markers and their corresponding antigens are demonstrated.

Supplier: EDVOTEK

Electrophoresis Gels, UltraSpec-Agarose™

Supplier: EDVOTEK

Capable of running one or two groups of student samples at the same time and producing excellent results in 30 to 40 minutes.

Supplier: EDVOTEK

Vassoio scisso Gemini per M12, Per: Edvotek systems

Supplier: EDVOTEK

FlashBlue™ is a DNA stain that offers simple and rapid staining of agarose gels.

Supplier: EDVOTEK

This lightweight, cordless pipetting controller is ideally suited as an aliquoting tool for instructors and teaching assistants. It uses all standard serological pipettes. The speed can be fine-tuned by applying varying finger pressure to the operating buttons.

Supplier: EDVOTEK

X-Gal (5-Bromo-4-cloro-3-indolil-ß-D-galattopiranoside)

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This experiment uses PCR to amplify a small section of Lambda DNA via a 2-step process, saving valuable classroom time and allowing completion of the lab in one session.

Supplier: EDVOTEK

Oil spills cause devastation to the environment, killing sea life, birds, and coastal plants. Spraying areas of contamination with oil-eating microbes accelerates the degradation of the oil. This process is known as bioremediation. In this open-ended experiment, students grow a mixture of oil-eating bacteria and observe their effectiveness at degrading a variety of oils.

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According to the World Health Organisation, between 2 and 3 million cases of skin cancer occur globally every year. Many of these cases are caused by preventable damage to DNA by UV light. In this experiment, students expose plasmid DNA to shortwave UV light to simulate the effect of sunbathing. The DNA is then analysed by agarose gel electrophoresis to observe the damage.

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When normal cells are grown in culture they stop growing when they become overcrowded (contact inhibition). Cancer cells in culture grow in an uncontrolled way because they have lost this property. This helps tumours to form in the body. In addition, many different cell types can be present in a single tumour. This experiment allows students to see the differences between normal and cancer cells in both their growth and cell types.

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This experiment introduces students to the use of DNA fingerprinting in a simulated paternity determination. A child's DNA fingerprint is compared with his parents.

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The body defends itself from attack by infectious agents like bacteria and viruses by producing antibodies. Enzyme linked immunosorbent assays (ELISA) test for antibodies present in the blood, which indicate infection. In this experiment, students perform a simulated ELISA test to identify infected samples and compare them to control samples.

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The Green Fluorescent Protein (GFP) from the jellyfish Aequorea victoria is used extensively in all areas of science. Many organisms have been transformed with the GFP gene, the gene responsible for bioluminescence in jellyfish. It has proven to be so useful that scientists have mutated it to produce Blue Fluorescent Protein (BFP). In this simple experiment, students transform bacteria either by GFP, BFP or both.

Supplier: EDVOTEK

In this experiment, total protein extracts from several bacterial sources are extracted and compared. The unique patterns of protein bands, obtained by SDS vertical polyacrylamide electrophoresis, can be used to identify various bacterial strains.

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Four experimental modules are combined into one experiment to provide a comprehensive biotechnology exploration focusing on the green fluorescent protein (GFP). Bacterial cells are transformed to express the GFP. The transformed cells are then grown and the GFP purified by column chromatography. Finally, the purity of the protein fractions are analysed by SDS polyacrylamide electrophoresis.

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When bacteria are used to make medicinally useful proteins by transformation, the protein of interest must be separated from all of the other cellular proteins. In this experiment, the unique fluorescent properties of GFP and BFP are used as an assay during their purification from an E. coli extract. The column fractions containing GFP or BFP are identified by fluorescence and then purified. As an optional activity, purified protein fractions can be separated by SDS polyacrylamide gel electrophoresis (SDS-PAGE) to estimate the purity and size of the GFP and BFP proteins.

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Stainless steel lid, Per: 5027

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Learn the basics of DNA sequencing and sequence homology with this lab activity.

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Hands-on simulation of molecular testing for COVID-19.

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The second assay used to confirm a positive HIV ELISA result is the Western blot. Using this kit, students separate protein samples from hypothetical patients on agarose gels. The proteins are then transferred to a membrane and simulated HIV proteins are detected.

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Genetic testing can be used to identify people with a genetic condition which caused them to have an elevated level of cholesterol and which can be fatal. Students can see how genetic testing is carried out and learn about DNA electrophoresis.

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This Ready-to-Load™ kit shows how a restriction enzyme can be used to screen DNA for Sickle Cell Anaemia.

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For learning about the diversity of proteins by studying the electrophoretic profiles of various sources. Students separate proteins from bacterial, plant, serum, and milk proteins alongside a standard protein marker.

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In this PCR experiment, students make billions of copies of a small amount of DNA in only 90 minutes. They just need to mix template DNA and primers with PCR beads that contain all of the other components required to carry out a PCR reaction. Students see the increasing amounts of DNA for themselves, taking samples every few cycles and analysing them on a DNA gel.

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In DNA fingerprinting, variable number tandem repeats (VNTR) are used to identify individuals. Using this kit, students type themselves at the D1S80 locus on chromosome 1. This region contains between 14 and 40 copies of a 16 base pair repeat.

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20 µg for 20 gels.

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Students can build a model of DNA using this simple and colourful system.

Supplier: EDVOTEK

InstaStain® methylene blue sheets stain gels in minutes and give high quality and uniform staining with excellent results for photography.