25554 Results for: "Materi\u00E1ly+pro+v\u00FDuku+fyziky"

Supplier: AAT BIOQUEST

The weakly fluorescent AMC substrates generate the bright blue fluorescent AMC product that has Ex/Em = 351/430 nm, and can be easily detected with a DAPI filter set.

Supplier: GLASWARENFABRIK KARL HECHT

Educational Materials, Accessories, Application: Physics, Water decomposer, only the glass details

Supplier: MACHEREY-NAGEL

Materials kit for scientific education.

Supplier: A.KRÜSS Optronic

Educational Materials, Accessories, Application: Physics, Scale illumination

Supplier: NEUBERT VOLUME GLASSWAERE

Educational Materials, Accessories, Application: Physics, Tripod, silicone, transparent

Supplier: DIDALAB

Educational Materials, Accessories, Application: Physics, Permanent frame, Ø 40 mm

Supplier: Apollo Scientific

FMOC-Pro-Pro-OH

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

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

Educational Materials, Microbiology, Application: Microbiology

Supplier: EDVOTEK

Kit for teaching students how to use a micropipette with ease and accuracy using multi-coloured dyes.

Supplier: VWR Chemicals

The ingredients used to prepare culture media are very important, because ultimately the results depend on the quality of these compounds. Raw materials should be stored at 10 to 30 °C unless otherwise stated, in their closed containers in a dry environment.

Supplier: VWR Chemicals

VWR® is a manufacturer and supplier of high quality biochemicals and reagents for molecular biology, life sciences, proteomics, clinical and histology areas of research.

Supplier: EDVOTEK

Educational Materials, Microbiology, Application: Microbiology, ReadyPour™ LB agar with ampicillin

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: Binder

Calibration certificate, temperature - temperature measurement incl. certificate, 9 measuring points at specified temperature, KBF PRO 130, KBF PRO 260, KBF PRO 470, KBF PRO 720, KBF PRO 1060, KBF PRO 1600

Supplier: Binder

Swivel casters, height-adjustable, for horizontal alignment of the unit on uneven floors, KB PRO 260, KB PRO 470, KB PRO 720, KB PRO 1060, KB PRO 1600

Supplier: EDVOTEK

ABO and Rh typing of blood left at the scene of a crime can help to narrow down a list of suspects. In this experiment, students use agglutination to identify the blood group of unknown blood samples as a step to identify a criminal.

Supplier: DIDALAB

Educational Materials, Optics, Application: Physics, Diode laser, red, Class II

Supplier: DIDALAB

Educational Materials, Optics, Application: Physics, Polariser, calibrated, set in an M49 ring

Supplier: LIOFILCHEM

Proteose peptone, 500 g

Supplier: EDVOTEK

Ready-to-Load™ kit for teaching DNA fingerprinting and to show how DNA evidence is used in modern forensics. This experiment allows for varied results depending on the selection of DNA fingerprinting patterns.

Supplier: Thermo Fisher Scientific

Replace metal-type troughs with the polypropylene pneumatic trough.

Supplier: EDVOTEK

DNA obtained from a single hair left behind at a crime scene can be used to identify a criminal. In this experiment, students will compare simulated crime scene DNA with that of two suspects.

Supplier: G-Biosciences

Dialysis is a routinely used technique in research laboratories to 'change' the solution a biomolecule is dissolved in. Often the buffers used to isolate biomolecules, such as proteins, are not compatible with downstream applications due to high concentrations of reagents, such as salts. A sample is placed in a bag with a semi-permeable membrane and then placed in the new solution or water. Small molecules, such as salt, can pass through the membrane, moving from an area of high concentration to low concentration. The larger molecules, such as proteins, are retained in the bag. Microdialysis is a modification of dialysis to overcome the problem of dialysing small volumes of precious samples. Microdialysis uses small devices designed for small volumes. This kit allows students to study dialysis using patented microdialysis devices.

Supplier: THERMO FISHER DIAGNOSTICS

Tryptone T, 500 g

Supplier: EDVOTEK

Evidence left behind at a crime scene can identify a potential culprit. Even in this age of DNA, fingerprints and blood stains are still important in helping to identify a criminal. In this experiment, students solve a crime by dusting for fingerprints and use fluorescent dust to search for and identify trace amounts of blood.

Supplier: NEW PIG

Chemical Mat that quickly absorbs acids, caustics and unknown liquids for effective clean-up of high volume spills.

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

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.