Tag: Comparison

Optimizing Reverse Phase Protein Array Assays

Components of Reverse-Phase Protein Array (RPPA) methods and their impact on the overall performance of this assay were presented at the 2nd annual RPPA Conference in Edinburgh, Scotland on November 12.  Entire presentation can be viewed here.  View poster here. View here for information regarding our RPPA Assay System Selecting Surfaces, Reagents, and Detection Methods … Continued

From Western Blot to Protein Array with Super G Blocking Buffer

Results obtained from Western blots can be highly variable and dependent not only on the specific antigen/antibody pairs used, but also on other reagents in the protocol such as blocking buffer. Not surprisingly, no one “universal” blocking reagent works well with all proteins. Thus choice of blocking reagent should be assessed for optimal results and having … Continued

View Your Proteins in 3-D!

Protein microarray technology has progressed significantly and, although new microarray surface chemistries continue to be developed and marketed, porous nitrocellulose has remained the predominant immobilization surface for protein microarray applications due to its many functional advantages.  The 3-dimensional structure of nitrocellulose film slides offers a considerably higher surface area for protein binding compared to conventional … Continued

Assay Kinetics for Quantum Dots on Protein Arrays

Previously, we have reported data from multiplexed protein microarray assays with quantum dots which show great promise for use of these labels with nitrocellulose film-slides. The use of quantum dots with emission in the red and NIR spectrum allow for sensitive detection on nitrocellulose film slides due to low inherent fluorescence background at longer wavelengths.There … Continued

Optimize Your Protein Array with Specially Formulated Arraying Buffer

The buffer used for spotting proteins for protein arrays is a critical factor in obtaining reliable and consistent results. Most important impact is on protein aggregation, which can affect spot morphology,  and protein binding to the substrate. Grace Bio-Labs has developed a Protein Arraying Buffer designed to work with our ONCYTE® porous nitrocellulose film slides for optimal … Continued