integrity Protocols

Category: Pharmacology and Toxicology Protocols: Cytotoxicity Protocols

Protocol describes automation of the CytoTox-ONE Homogeneous Membrane Integrity Assay. - [Read CytoTox-ONE Homogeneous Membrane Integrity Assay Protocol]

Category: Cell Culture Protocols: Cell Fixing Protocols

Organic solvents such as alcohols and acetone remove lipids and dehydrate cells, precipitating the proteins on the cellular architecture. Be aware that different antigens may be affected differently by the various solvents. If no previous data are available for your antigen, start with the 50/50 mixture. For tissue culture dishes, concentrations of acetone higher than 50% will destroy the integrity of the plastic. - [Read Fixing Attached Cells in Organic Solvents Protocol]

Category: Nucleic Acid Electrophoresis Protocols: RNA Electrophoresis Protocols

Protocol for preparation of a denaturing agarose gel for the analysis of RNA samples. The integrity of RNA samples can be analyzed by electrophoresis on a denaturing agarose gel containing formaldehyde. - [Read Preparation of a Denaturing Agarose Gel for the Analysis of RNA Samples Protocol]

Category: Cell Culture Protocols: Cell Culture Contamination Prevention and Removal Protocols

Quality is important in all aspects of tissue culture since the quality of materials used i.e. media and other reagents) will affect the quality of the cultures and products derived from them. The main areas of quality control that are of concern for tissue culture are: The quality of the reagents and materials; The provenance and integrity of the cell lines; The avoidance of microbial contamination. - [Read Quality Control Considerations for Cell Culture]

Category: Primary Cell Isolation and Culture Protocols: Mammalian Cell Culture Protocols

Quality control considerations for cell culture. Includes: Provenance and Integrity of Cell Lines; Avoidance of Microbial Contamination; Environmental Monitoring; What to do in the event of contamination; - [Read Quality Control Considerations for Cell Culture]

Category: Nucleic Acid Electrophoresis Protocols: RNA Electrophoresis Protocols

Method is used to assess (roughly) the integrity of total RNA samples by visualization of discreet 18S and 28S ribosomal RNAs.  Total RNA is separated by electrophoresis through a 1% agarose gel containing 1.3 ìM ethidium bromide.  Binding of the ethidium bromide to the RNA allows visualization of the separated RNA molecules when the gel is exposed to ultraviolet (UV) light. - [Read Visualization of RNA Preparations on 1% Agarose Gels Protocol]

Category: Pharmacology and Toxicology Protocols: Cytotoxicity Protocols: Microorganism Cytotoxicity Assays Protocols

Accumulation of lipophilic substances, many of which may be environmental chemicals, affects the membrane lipid order and consequently affects the functions of these proteins.  Since, the function of important cellular proteins, such as the H+-ATPase strongly depends upon the integrity of the lipid bilayer, the activity of the H+-ATPase may be used as a sensitive indicator of the effect that a chemical may have on the viability of the cell. - [Read Yeast Plasma Membrane H+ -ATPASE Toxicity Test]