134685 Results for: "Fingerprint+Analysis+Learning+Activities"

Supplier: Thermo Fisher Scientific

Charcoal activated, NORIT® GAC 1240 12-40 mesh

Supplier: VWR Chemicals

Aluminium oxide activated basic for chromatography

Supplier: G-Biosciences

This lab activity involves analysis of an enzyme reaction using a specific enzyme substrate and inhibitor. Students study how the rate of enzyme reaction is dependent on substrate concentration and the influence of agents (inhibitors) and conditions that affects the enzyme reaction such as pH and temperature.

Supplier: MERCK PRODUCTION CHEMICALS

Charcoal activated Ph. Eur., SAFC®

Supplier: G-Biosciences

Dot blotting is a simple technique to identify a known protein in a biological sample. The ease and simplicity of the technique makes dot blotting an ideal diagnostic tool.

Supplier: G-Biosciences

This lab activity has two objectives - to deepen the understanding of protein molecules and for students to learn the potential of electrophoresis in protein analysis. Students study the fundamentals of protein structure from their primary structure to the more complex tertiary and quaternary structures, utilising protein electrophoresis. Complex mixtures of protein samples and characterised pure protein samples, in conjunction with electrophoresis, are utilised to study protein structure and the potential of protein electrophoresis. Using non-denaturing and denaturing electrophoresis, students understand the difference between primary, tertiary and quaternary structures, the importance of disulfhydryl bridges in maintaining protein structure and electrophoresis in studying complete proteins and protein subunits.

Supplier: Spectrum Chemical

Form: Powder

Supplier: G-Biosciences

Biodiversity lab activity is designed for determination of protein contents and biomass in diverse biological samples to study how biomass is related to biodiversity in nature. Students collect and catalogue plant leaf samples from a diverse group of locally available plants. This lab activity involves determination of natural weight of each plant sample, grinding a predetermined amount of each sample, and the subsequent extraction of proteins from the samples. Students then learn to determine protein contents of each plant sample and attempt to relate the protein content with biomass. Students in this lab activity are challenged to think, analyse, and seek answers as to why protein biomasses vary for a given natural weight for different plants. Finally, they will relate that finding to the biodiversity of nature.

Supplier: EDVOTEK

This experiment introduces students to Southern blotting as a tool for DNA fingerprinting in a hypothetical paternity determination. DNA fragments are first separated by agarose gel electrophoresis, then transferred to a nylon membrane and finally visualised by staining.

Supplier: Spectrum Chemical

Charcoal activated (from coconut)

Supplier: Honeywell Chemicals

Charcoal activated ≥98.5%, powder, Purum ≤40 μm (75%), Fluka™

Supplier: Thermo Fisher Scientific

Rhodium : Palladium on activated carbon (10:1), powder

Supplier: Honeywell Chemicals

Charcoal activated, powder, DARCO® -100 mesh, Fluka™

Supplier: Honeywell Chemicals

Charcoal activated, tested according to Ph. Eur., Fluka™

Supplier: G-Biosciences

A major challenge for molecular biologists and genetic engineers is to easily detect and analyze genetic mutations that occur naturally, causing diseases, or during genetic engineering or cloning, whether deliberate or accidental. Students learn about different types of genetic mutations, including substitutions, deletions and point mutations and about various techniques used to detect genetic mutations. The kit contains all the reagents to screen simulated clinical samples for a mutant gene, using both the polymerase chain reaction (PCR) and restriction digestion mapping. Students conduct a simple clinical diagnostic experiment in order to identify a diseased patient.

Supplier: Thermo Fisher Scientific

Aluminium oxide activated basic HPLC flash grade

Supplier: Thermo Fisher Scientific

Aluminium oxide activated neutral Brockmann Grade II

Supplier: Thermo Fisher Scientific

Aluminium oxide activated neutral Brockmann Grade I 58 angstroms

Supplier: Merck

Brockmann aluminum oxides are suitable for column chromatography and adsorptive filtration. Aluminum oxides are generally used as solid support phases in solid phase extraction (SPE)-based clean-up procedures employed in chromatographic methods

Supplier: Thermo Fisher Scientific

Aluminium oxide activated acidic Brockmann Grade I 58 angstroms

Supplier: EDVOTEK

The mitochondria are thought to have evolved from a symbiotic relationship between prokaryotic and eukaryotic cells. Mitochondria have their own DNA and are only inherited via the maternal line. In this experiment, students amplify two regions of their mitochondrial DNA.

Supplier: EDVOTEK

Ready-to-Load™ kit for introducing the use of restriction enzymes as a tool to digest lambda DNA at specific nucleotide sequences.

Supplier: Cayman Chemical

NF-κB Activation Inhibitor III ≥99%

Supplier: EDVOTEK

Observe the differences between mammalian cell types and how these cells funciton. Cells are fixed on microscope slides and students stain the cells on the slide to view morphological characteristics of the cell types. These cells are very safe for classroom use.

Supplier: Merck Millipore (Calbiochem‎)

The Glucokinase Activator, Cpd A, also referenced under CAS 603108-44-7, modulates Glucokinase. This small molecule/inhibitor is primarily used for Activators/Inducers applications.

Supplier: G-Biosciences

This lab activity is designed to demonstrate the different classes of protein molecules and their classification based on solubility. Students learn fractionation of soluble, insoluble membrane proteins, and cytoskeleton proteins from a tissue sample. The insoluble protein fraction is further fractionated into hydrophilic and hydrophobic membrane proteins. Cell membrane structure and the role of hydrophobic membrane proteins are considered. This lab activity also provides an opportunity to understand characteristics of various classes of detergents and the role of detergents in solubilisation of hydrophobic membrane proteins.

Supplier: G-Biosciences

In this lab activity, students learn to perform carefully controlled experiments to generate protein fragments using a proteolysis enzyme and then analyse the protein fragments by electrophoresis. By analysis of protein fragmentation patterns, i.e. protein fingerprints, students learn about protein sequence, structure, and their conservation. Students resolve a set of three functionally identical protein samples selected from throughout the animal kingdom; including human, bovine and sheep. After generating fingerprints by electrophoresis, students examine the protein fingerprint of each sample to determine the degree of conservation.

Supplier: EDVOTEK

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

Supplier: VWR Chemicals

Plain borosilicate tubes for insertion of a wire electrode so that the electrode is insulated from the clamp or holder and protected from mechanical damage. The tube also helps the flexible wire electrode be positioned correctly in a rigid support.

Supplier: EDVOTEK

Safe drinking water is vitally important to health. Both pathogenic and harmless bacteria can be found in the guts of mammals and birds. Testing water for every possible type of pathogenic bacteria is slow and costly. Thus, water is tested for a characteristic type of gut bacteria - the coliforms - including the familiar E. coli. Presence of coliforms is an indicator for faecal contamination. In this experiment, students test for coliforms in simulated contaminated water using colour and fluorescent reagents. They can use these same reagents to test water samples from the environment. As an extension activity, a Gram Stain test can be performed on the collected samples.