129810 Results for: "Mechanics+Learning+Activities"

Supplier: MP Biomedicals

MP EcoChrom™ Alumina, Activity Super I is essentially aluminum oxide, Al2O3, occurring in nature as minerals bauxite, bayerite, corundum, etc. This product meets the high recovery level required for the analysis of polychlorinated dibenzodioxins and dibenzofurans according to VDI Regulation 3499, part I.
MP EcoChrom™ Alumina B, Activity Super I is used for Dioxin analysis. It also been used for all chromatographic processes requiring highest activity and/or highest reproducibility.
Store at Room Temperature (15-30 °C)

Supplier: Thermo Fisher Scientific

Thermo Scientific™ Rheodyne™ replacement rotor seals for injectors made of ETFE to maintain the performance of Rheodyne™ sample injectors for high-performance liquid chromatography (HPLC).

Supplier: Thermo Fisher Scientific

Ideal for analysis of active compounds such as pesticides, polychlorinated biphenyls (PCBs) and phenol.

Supplier: Honeywell Chemicals

Aluminium oxide activated acidic Brockmann Grade I ~150 mesh, Fluka™

Supplier: HWS LABORTECHNIK

The new dynamic seal can be used under moderate pressure and vacuum according to security rules.

Supplier: G-Biosciences

The physical properties of proteins kit is a lab activity that enables students to investigate the physical properties of several different proteins. Students will learn about protein solubility and how it is affected by various parameters; including temperature, pH, salt and dielectric constant. They will understand about protein precipitation due to pH, high salt and in the presence of organic solvents and about protein denaturation as a result of high temperature. In addition, the kit will demonstrate how non-protein agents, such as detergents drastically alter the physical properties of protein molecules and as a result, understand the importance of detergents in protein solubilisation. This lab activity involves analysis of three different types of pure proteins and then students alter some of those properties with a detergent and re-examine physical properties of those proteins. Students are challenged to consider how physical properties of protein molecules can be exploited for purification and characterisation of proteins and apply their findings on a test sample of complex tissue extract.

Supplier: EDVOTEK

This easy and safe experiment allows students to learn about enzyme catalysis, the nature of enzyme action, and protein structure-function relationship. Students will perform an enzyme assay and determine the rate of the enzymatic reaction.

Supplier: Honeywell Chemicals

Aluminium oxide activated basic Brockmann Grade I ~150 mesh, Fluka™

Supplier: Honeywell Chemicals

Aluminium oxide activated neutral Brockmann Grade I ~150 mesh, Fluka™

Supplier: EDVOTEK

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

Supplier: Thermo Fisher Scientific

Aluminium oxide activated basic ≥99.9995% Brockmann Grade I 58 angstroms

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: ENZO LIFE SCIENCES

Caspase-3 activator

Supplier: G-Biosciences

Bacterial conjugation is a naturally occurring process that allows the transfer of DNA from one bacterium to another, which allows the transfer of genetic traits, particularly drug resistance. The kit contains two bacteria with different drug resistance genes and all the tools for students to study bacterial conjugation. This kit teaches the difference between bacterial genomic DNA and the transferable plasmid DNA and the mechanisms of bacterial conjugation. Students will also learn important basic microbiological techniques, including bacterial growth in liquid broth and on solid agar plates, antibiotic selection of bacteria and important aseptic techniques.

Supplier: G-Biosciences

A hands on lab activity to study immunoaffinity chromatography and use a specific antibody to purify antigenic proteins from complex samples. This technique involves performing a chromatography procedure using antigen or antibody immobilised on a chromatographic resin. The solution containing antigen or antibody is passed through the column, which specifically and efficiently captures antibodies (antigen). The captured molecules are eluted from the column as a pure fraction. In this lab activity, students perform immunoaffinity chromatography and learn how this method is utilised in research laboratories.

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: G-Biosciences

In this lab activity, students learn to perform simple protein isolation procedures to isolate the protein fingerprint from various fresh tissues. They will compare the protein fingerprints of four different tissues to understand that the function of a particular organ is due to the proteins that are localised to the specific organ. Also included in this kit are four dried protein samples (from mouse liver, brain, heart and lungs) to compare as a control, if fresh tissues cannot be obtained.

Supplier: EDVOTEK

Solve the mystery of two boys separated from their parents a decade ago. Their biological mother is identified by mitochondrial DNA and their biological father from chromosomal DNA.

Supplier: EDVOTEK

Plasmid and lambda DNA are pre-digested with restriction endonucleases that recognise and cut double-stranded DNA within or near defined base sequences. Digests are separated by agarose gel electrophoresis.

Supplier: G-Biosciences

Antibiotics play a crucial role in the manipulation, screening and killing of bacteria in a range of biotechnology processes. This kit specifically teaches the basic principles of antibiotics, bacterial resistance and susceptibility. Students learn and understand the use of antibiotic resistance in screening for infectious diseases. Utilising a bacterial strain, students learn the effects of different antibiotics and visualise bacterial sensitivity and resistance to the supplied antibiotics. This method involves the use of filter paper discs impregnated with a specified concentration of antibiotics on the surface of an agar plate containing microbial cells. This kit will enable students to analyse the inhibitory effects of different antibiotics on selected bacterial cells and then determine which antibiotic is the most suitable to treat a bacterial infection.

Supplier: EDVOTEK

Small-scale, rapid isolation of plasmid DNA is a routine procedure used for screening and analysis of recombinant DNAs in cloning and sub-cloning experiments. In this experiment, students isolate plasmid DNA without the use of toxic chemicals such as phenol or chloroform.

Supplier: EDVOTEK

The DNA from bacteriophage Lambda is a well-characterised linear molecule containing six recognition sites for Eco RI (5 distinct sites, 2 are very close in size). In this experiment, Lambda DNA is digested by the Eco RI endonuclease. The digestion products are analysed by agarose gel electrophoresis.

Supplier: G-Biosciences

Following restriction enzyme digestion of DNA molecules, researchers need to rejoin the ends of the DNA to generate recombinant DNA, a process known as ligation. Ligation of DNA is achieved with the bacterial enzyme T4 DNA ligase, which catalyses the formation of phosphodiester bonds. The DNA Ligation kit teaches students about ligation as they ligate several DNA fragments together to make larger pieces of DNA that are easily identified by agarose electrophoresis.

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: G-Biosciences

Determination of protein concentration is an essential technique in all aspects of protein studies and proteomics. The Assays for Protein Quantification kit includes three of the most widely used protein assays and allows for a direct comparison of the three assays that teaches students the benefits and limitations of each assay. Each assay is available individually to allow teaching of a specific assay, without the option of comparing and contrasting with other assays. The three assays covered are the Biuret Protein Assay, Lowry Protein Assay and the Coomassie Blue Dye Protein Assay. The Assays for Protein Quantification kit provides all the reagents required to perform both protein assays, including protein standards for accurate quantification, in a single lab activity. An often underestimated factor in quantifying protein is the presence of non-protein interfering agents, such as salts and detergents. This kit teaches students about common laboratory agents that affect the protein assays, the reasoning behind their interferences and how to overcome the interference. Students also learn how to select a protein assay for different applications.

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: G-Biosciences

The Size Exclusion Chromatography kit teaches gel filtration or size exclusion chromatography and the use of this method in purification of biological samples. This method is based on separation of protein molecules based on their molecular size. This lab activity involves running size exclusion chromatography for separation of molecules based on their molecular sizes.

Supplier: EDVOTEK

Students learn the basic principles of the Enzyme-linked Immunosorbent Assay (ELISA) using this precise and sensitive antibody-based detection kit.

Supplier: G-Biosciences

Using the Protein Electrophoresis kit, students will learn the principles of various types of electrophoresis, including denaturing and non-denaturing electrophoresis, and how this powerful technique is used to analyse proteins. The kit will introduce students to the different separation matrices currently in use and will understand their differing separation properties and their role in protein analysis. Students have an option of casting their own electrophoresis gels using polyacrylamide or using pre-cast commercially available gels. This kit is provided with all of the reagents, buffers and supplies needed for casting acrylamide gels, preparing protein samples, running electrophoresis, and staining the gels for visualisation of protein bands. Test protein samples and protein standards are also provided.

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.