Tag: Immunoassay

Epitope Mapping Using Peptide Microarray

Epitope mapping allows the identification of polyclonal antibodies produced as a response to cytotoxins, allergens, neuronal or inflammatory conditions and, in autoimmune diseases to autoantigens. Routine assays for autoimmune response profiling are generally performed by ELISAs and fluorescence immunoassays. Individual assays are performed in microtiter plates, with each well representing a single antigen. Peptide microarrays provide … Continued

A Comprehensive Technology Survey of Protein Microarray Platforms, Techniques and Detection Methods

A comprehensive assessment of multiplex immunoassay platforms and detection methods is summarized in an interesting 2011 article by Chandra, et al, in Expert Review Proteomics (1). The article, “Protein Microarrays and Novel Detection Platforms” provides interesting information for several reasons.First, it presents an excellent description of the emerging discovery and clinical need for high throughput … Continued

Routine Clinical Adoption of Immunoassay Multiplexing, Whether Microarray or Cytometric Bead Array, Is Still Several Years Away Due to Operational Entrenchment

An objective look at immunoassay multiplexing, where it stands today and contrasted to the standard ELISA was authored recently by Dr. Lucy Fairclough et al. The discussion argued the efficacy of multiplexing as well as the pros and cons of present methods available.Commercial availability of multiplex immunoassays for life science discovery research is rapidly expanding … Continued

Immunoassays: Protein Arrays vs. ELISA and Westerns

Studies of biological systems have expanded beyond the ‘one gene, one protein’ paradigm to the field of proteomics, or studying large numbers of proteins that act in a concert of complex biological systems. Thus in the post-genome era, technology has been driven to deliver multiplex assays that allow us to monitor multiple proteins in parallel, … Continued

Inclusion of Super G in All Steps of Protein Arrays Improves S/N

Blocking reagents are used to reduce non-specific protein binding in immunoassays, significantly improving results in terms of Signal-to-Noise ratio. Typically the blocking reagent is added prior to addition of the primary detection antibody.In this study we asked the question as to whether addition of the blocking reagent to other steps in a protein array assay … Continued