BIOMARKER & IMMUNOASSAY SERVICES

* Quantitation and detection of cytokines / chemokine, cancer biomarkers or signal transduction proteins in cell lysates, cell culture supernatants, serum, plasma, etc

* Quantitation and detection of cytokines / chemokine, cancer biomarkers or signal transduction proteins in cell lysates, cell culture supernatants, serum, plasma, etc.

* Simultaneously interrogate multiple protein phosphorylation and histone posttranslational modification

* Our Bio-Plex® system with high-throughput fluidics is a suspension array system capable of analyzing hundreds of biomolecules in a single sample of small amount such as 50 ul 

    *  A fully automated, ultrasensitive, multiplexed immunoassay or Digital ELISA.  

 *  Simoa is based upon the isolation of individual immunocomplexes on paramagnetic beads using standard ELISA reagents. The main difference between Simoa and traditional immunoassays lies in the ability to trap single molecules in femtoliter-sized wells, allowing for a “digital” readout of each individual bead to determine if it is bound to the target analyte or not.

 *  Detection and quantification of low-abundance biomarkers difficult or impossible to measure with conventional assays. 

 *  Quantification of proteins as low as femtogram (fg)/ml in the samples

 *  The digital nature of the Simoa technology allows an average of 1000 x sensitivity increase over conventional ELISA assays with CVs < 10%.

  * We offer ELISA assays in various formats: direct or indirect, standard sandwichor Competitive ELISA, as well as ELISpot/ In-cell ELISA

 * Our ELISpot detects antigen-specific T cells in frequencies as low as 0.0001% within PBMC; that is, a single cytokine-secreting T cell can be reliably identified among one million bystander cells.

 * ELISpot is among the most useful for determining cell-mediated immunity because of its sensitivity and specificity in detecting rare antigen-specific T cells (or B cells). It provides qualitative information regarding the specific cytokine or other secreted immune molecule.

 * Our ELISpot is frequently utilized for immunogenicity testing, immune response monitoring, epitope discovery, and helper T cell response evaluation. 

 # Utilizing proximity-based amplification technology, ProQuantum assays offer the analyte specificity of antibody–antigen binding with the signal detection and amplification capabilities of qPCR to achieve highly sensitivity. 

# Typically detect lower levels of protein with lower sample consumption than traditional methods. This can be particularly important when handling very limited volumes of precious samples from blood or tumor extracts. Limited sample volumes also present a challenge to detect very low levels of protein, but ProQuantum’s technology solves that by amplifying the signal beyond the capability of other available methods.

 # Is a heterogeneous, time-resolved fluorescence (TRF) assay that detects reagents labeled with lanthanide chelates (Eu, Tb, and Sm)

 # Our DELFIA offers excellent flexibility for a range of applications when the assay must be highly sensitive, specific, reliable, and reproducible. It is ideal for complex sample matrices and is particularly well suited for TRF, kinase, and immunodetection assays, as well as discovery work.

 # Our DELFIA has a wide dynamic range, is ideal for post-screening applications such as PK, ADA, biomarker, and cell-based assay support.

 #  Virtually any target can be easily measured using AlphaLISA, an improved alternative to quantitative ELISA assays. Such targets include enzymes, receptor-ligand interactions, low-affinity interactions, second messengers, DNA, RNA, proteins, protein-protein interactions, peptides, and small molecules.

 # Our AlphaLISA is a homogeneous assay with no wash requirement and no separation steps, with high sensitivity and large dynamic range: detect down to femtogram levels of target

 # Compatible with many samples types: serum, plasma, cerebrospinal fluid (CSF), tissue extracts, cell culture supernatants, cell lysates, and more

  #  Quantification of up to 96 proteins in 96 samples simultaneously 

  #  High grade multiplexing with no trade-off in data quality, saving time and sample by simultaneously analyzing multiple proteins 

  #  Exceptional specificity - based on the proprietary proximity ligation assay 

  #  Minimal sample consumption – target proteins can be examined as little as 1 µl of precious samples such as serum, plasma, tissue, etc. 

  #  High throughput – up to 9,216 datapoints generated per run, discovering and obtaining accurate information about novel gene expression patterns at the protein level

  #  Highly sensitive - unravel low-abundance proteins 

 #   An ultrasensitive method for detecting ultra-low quantities of antigens. 

  #   Combine the advantages of both ELISA and PCR in specificity, sensitivity and easy to adapt. 

Despite its potential, iPCR is an under-utilized assay due to unavailability of validated, ready-to-use commercial kits. 

  #   We also provide our well-validated ready-to-use iPCR conversion kits and ready-to-use PicoLISA iPCR kits.

  #   PicoLISA kits are an innovative assay platform that combines the specificity and ease of use of an ELISA with the sensitivity of real-time PCR, using only 1/10th the sample volume while providing 10 x more sensitivity than ELISA.

 #  Virtually any target can be easily measured using AlphaLISA, an improved alternative to quantitative ELISA assays. Such targets include enzymes, receptor-ligand interactions, low-affinity interactions, second messengers, DNA, RNA, proteins, protein-protein interactions, peptides, and small molecules.

 # Our AlphaLISA is a homogeneous assay with no wash requirement and no separation steps, with high sensitivity and large dynamic range: detect down to femtogram levels of target

 # Compatible with many samples types: serum, plasma, cerebrospinal fluid (CSF), tissue extracts, cell culture supernatants, cell lysates, and more