"VWR"

Supplier: VWR

Water soluble. Low interference with biological processes and biological membranes (penetration, solubilization, adsorption on surface). Non-toxic. Low U.V. absorption at wavelengths less than 260nm.

Supplier: VWR

Following electrophoresis, proteins are frequently transferred from the polyacrylamide gel onto PVDF or nitrocellulose membranes for use in immunoblotting or sequencing

Supplier: VWR

Replacement microscope light bulbs are available for a variety of microscopes. If unsure which bulb type is needed, please contact Ward's Science.

Supplier: VWR

Formamide, Ultrapure

Supplier: VWR

3-(4,5-Diméthylthiazole-2-yl)-2,5-diphényltétrazolium bromure (MTT), Ultrapure

Supplier: VWR

One of the best general-purpose buffers for biological research. Excellent for tissue culture, oxidative phosphorylation, protein synthesis with cell-free bacterial systems, photophosphorylation, and CO₂ fixation.

Supplier: VWR

Sodium nitrate ≥99.0%, crystals ACS

Supplier: VWR

The 4X concentrated buffer (0.5M Tris pH 6.8 and 0.4% SDS) for preparation of stacking gels for Laemmli SDS-Page

Supplier: VWR

Sodium hydroxyde ≥97.0%, pellets ACS

Supplier: VWR

Boreal beginner microscopes are ideal for introducing students to microscopy.

Supplier: VWR

ActivArmr® gloves are specifically engineered to reduce the amount of vibration absorbed by the hands when using power tools and other vibrating machinery.

Supplier: VWR

Sodium gluconate 98-102%, crystals, high purity

Supplier: VWR

Zwitterionic, both positively and negatively charged. Utilized for applications ranging from solubilizing membrane proteins in non-denaturing conditions to creating denaturing conditions during gel electrophoresis.

Supplier: VWR

May be used for the precipitation or fractionation of proteins or for purification of antibodies. Useful for crystallographic analysis of nucleic acids and proteins.

Supplier: VWR

An excellent reagent for maintaining SH groups in reduced state; quantitatively reduces disulfides. DTT is effective in sample buffers for reducing protein disulfide bonds prior to SDS-PAGE. DTT can also be used for reducing the disulfide bridge of the cross-linker N,N′-bis(acryloyl)cystamine to break apart the matrix of a polyacrylamide gel. DTT is less pungent and is less toxic than 2-mercaptoethanol. Typically, a seven fold lower concentration of DTT (100 mM) is needed than is used for 2-mercaptoethanol (5% v/v, 700 mM).

Supplier: VWR

Potassium iodure ACS