Assays
What is an Assay?Filters
A titer assay designed to quantify the concentration or activity level of a specific biological agent (such as a virus, antibody, or other biomolecule) in a given sample, with results linked to associated experimental datasets for integrated analysis. The assay employs serial dilution methodology to determine the highest dilution at which a detectable response or activity is observed, providing a standardized endpoint titer value. Results are systematically recorded and cross-referenced with ...
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
Antibody-dependent neutrophil phagocytosis evaluates antibody-mediated uptake of targets by neutrophils. It measures fluorescence or imaging-based signals to assess innate immune activity. Input: Antibody-labeled target cells and neutrophils Output: Phagocytosis data file indicating neutrophil uptake efficiency.
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
Antibody-dependent NK cell activation measures natural killer (NK) cell responses triggered by antibody-coated targets. The assay detects cytokine release or surface marker expression as indicators of immune activation. Input: Antibody-treated target cells and NK effector cells Output: Cytometric or fluorescence data representing NK activation levels.
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
Antibody-dependent cellular phagocytosis measures immune cell uptake of antibody-coated targets. The assay quantifies phagocytic activity as an indicator of antibody function and cellular response. Input: Antibody-treated target cells and effector cells Output: Phagocytosis data file (e.g., fluorescence or imaging-based readouts).
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
This assay evaluates the binding interactions between immunoglobulin Fc regions and Fc receptors (FcRs), providing quantitative characterization of antibody-receptor engagement relevant to effector function assessment. Binding affinities, kinetics, or relative binding levels are measured using established ligand-binding or biophysical methodologies, which may include surface plasmon resonance (SPR), enzyme-linked immunosorbent assay (ELISA)-based platforms, or flow cytometry-based approaches ...
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
This assay quantifies the ability of antibodies to mediate neutrophil-driven phagocytosis of target antigens (such as viral particles, bacteria, or opsonized beads), serving as a functional measure of antibody-mediated innate immune effector activity. Primary human neutrophils or neutrophil-like cell lines are incubated with fluorescently labeled antigen-antibody complexes, and phagocytic uptake is assessed by flow cytometry to determine the proportion of neutrophils that have internalized the ...
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
Antibody-dependent NK cell activation analysis processes activation readouts to quantify NK cell responses. It compiles signal intensities or cytokine levels to compare antibody-mediated activation across conditions. Input: Raw NK cell activation data Output: Processed activation summaries and response metrics.
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
Antibody-dependent cellular phagocytosis analysis processes raw uptake data to quantify immune cell activity. It calculates phagocytic scores, normalizes results, and generates comparative summaries. Input: Raw phagocytosis data Output: Processed activity metrics and visualized response profiles.
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
This assay captures metadata associated with tissue collection procedures, documenting critical provenance and contextual information for biological specimens obtained from study subjects. It records standardized parameters such as tissue type, anatomical source, collection method, preservation conditions, and relevant donor or sample identifiers to ensure traceability and reproducibility across downstream experimental workflows. This metadata serves as a foundational record linking collected ...
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
Flow cytometry is a laser-based, high-throughput single-cell analysis technique used to simultaneously measure multiple physical and fluorescent characteristics of cells or particles in suspension. This assay quantifies cell populations based on parameters such as cell size (forward scatter), granularity (side scatter), and fluorescence intensity of labeled surface or intracellular markers, enabling immunophenotyping, cell cycle analysis, viability assessment, and functional studies. Samples are ...
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
This assay captures metadata associated with tissue collection procedures, documenting critical provenance and contextual information for biological specimens obtained from study subjects. It records standardized parameters such as tissue type, anatomical source, collection method, preservation conditions, and relevant donor or sample identifiers to ensure traceability and reproducibility across downstream experimental workflows. This metadata serves as a foundational record linking collected ...
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
This assay characterizes the glycosylation profile of biological samples by analyzing the composition, structure, and abundance of glycan moieties attached to proteins or other biomolecules. Standard glycosylation analysis workflows typically involve sample preparation steps such as enzymatic release of N-linked glycans (e.g., via PNGase F treatment), followed by labeling or derivatization and separation using chromatographic or electrophoretic techniques (such as HPLC, UHPLC, or capillary ...
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
Library preparation converts extracted nucleic acids into sequencing-ready libraries. The process includes fragmentation, adapter ligation, and amplification to generate consistent input for sequencing instruments. Input: TIS, CEL, DNA or RNA sample Output: Indexed sequencing library suitable for sequencing assays.
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
A Luminex assay quantifies multiple analytes simultaneously using color-coded microspheres and fluorescence detection. The assay measures cytokines, antibodies, or proteins within a single multiplexed reaction. Input: Biological sample Output: Multiplex fluorescence data file representing analyte concentrations.
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
This assay employs an enzyme-linked immunosorbent assay (ELISA) methodology to quantitatively detect and measure specific analytes (such as proteins, antibodies, or other biomolecules) in biological samples. The technique utilizes antibody-antigen interactions coupled with enzymatic signal amplification to generate colorimetric or fluorometric readouts proportional to analyte concentration. Sample preparation, incubation conditions, wash steps, and detection reagents are performed according to ...
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
Antibody-dependent complement deposition measures complement protein binding following antibody interaction. The assay detects complement activation as an indicator of antibody-mediated immune function. Input: Antibody-coated target cells Output: Complement deposition measurement or fluorescence data file.
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
Antibody-dependent cellular phagocytosis measures immune cell uptake of antibody-coated targets. The assay quantifies phagocytic activity as an indicator of antibody function and cellular response. Input: Antibody-treated target cells and effector cells Output: Phagocytosis data file (e.g., fluorescence or imaging-based readouts).
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
Antibody-dependent neutrophil phagocytosis evaluates antibody-mediated uptake of targets by neutrophils. It measures fluorescence or imaging-based signals to assess innate immune activity. Input: Antibody-labeled target cells and neutrophils Output: Phagocytosis data file indicating neutrophil uptake efficiency.
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
This assay evaluates the ability of bacterial populations to survive under defined restrictive conditions, quantifying survivability metrics through linked experimental data to assess bacterial viability and growth inhibition. The methodology incorporates controlled exposure of bacterial cultures to restrictive agents or environmental stressors, with outcomes measured via standardized enumeration or optical density-based approaches to determine survival rates relative to untreated controls. Results ...
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
This assay captures administrative and clinical metadata associated with patient study visits, serving as a structured data collection framework rather than a biological measurement assay. It records visit-level contextual information such as visit dates, timepoints, subject identifiers, clinical site details, and protocol-relevant annotations that are essential for linking experimental samples and assay results to their proper clinical context. This metadata layer ensures traceability and data ...
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
This assay quantifies gene expression at single-cell resolution by linking individual cell transcriptomic profiles to associated experimental or clinical data, enabling integrative analysis across multiple data modalities. Single-cell RNA sequencing (scRNA-seq) technology is employed to capture and measure the transcriptional activity of individual cells, generating high-dimensional expression matrices that are subsequently processed through quality control, normalization, and dimensionality ...
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
Antibody-dependent NK cell activation measures natural killer (NK) cell responses triggered by antibody-coated targets. The assay detects cytokine release or surface marker expression as indicators of immune activation. Input: Antibody-treated target cells and NK effector cells Output: Cytometric or fluorescence data representing NK activation levels.
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
A bacterial challenge assay exposes biological samples or model organisms to a defined bacterial strain. It is used to study infection dynamics, host-pathogen interactions, or immune response under controlled conditions. Input: Biological system or culture Output: Treated sample or response dataset reflecting bacterial exposure effects.
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
This assay captures administrative and clinical metadata associated with patient study visits, serving as a structured data collection framework rather than a biological measurement assay. It records visit-level contextual information such as visit dates, timepoints, subject identifiers, clinical site details, and protocol-relevant annotations that are essential for linking experimental samples and assay results to their proper clinical context. This metadata layer ensures traceability and data ...
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
This assay captures metadata associated with tissue collection procedures, documenting critical provenance and contextual information for biological specimens obtained from study subjects. It records standardized parameters such as tissue type, anatomical source, collection method, preservation conditions, and relevant donor or sample identifiers to ensure traceability and reproducibility across downstream experimental workflows. This metadata serves as a foundational record linking collected ...
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
This assay captures metadata associated with bacterial extraction procedures, documenting the experimental parameters, sample identifiers, reagents, and procedural conditions used during the isolation and extraction of bacterial material from biological or environmental samples. It serves as a standardized record-keeping component that accompanies downstream analytical assays, ensuring traceability and reproducibility by cataloging key variables such as sample source, extraction method, instrument ...
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
Library preparation converts extracted nucleic acids into sequencing-ready libraries. The process includes fragmentation, adapter ligation, and amplification to generate consistent input for sequencing instruments. Input: TIS, CEL, DNA or RNA sample Output: Indexed sequencing library suitable for sequencing assays.
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
Short read sequencing is a high-throughput next-generation sequencing (NGS) approach used to determine the nucleotide sequence of DNA or RNA fragments, enabling detection of genetic variants, gene expression profiles, or genomic features depending on the library preparation strategy employed. This assay involves fragmentation of input nucleic acids, adapter ligation, and amplification prior to sequencing on short-read platforms (such as Illumina), generating millions of short sequence reads ...
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
This assay quantifies gene expression at single-cell resolution by linking individual cell transcriptomic profiles to associated experimental or clinical data, enabling integrative analysis across multiple data modalities. Single-cell RNA sequencing (scRNA-seq) technology is employed to capture and measure the transcriptional activity of individual cells, generating high-dimensional expression matrices that are subsequently processed through quality control, normalization, and dimensionality ...
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB
Flow cytometry is a laser-based, high-throughput single-cell analysis technique used to simultaneously measure multiple physical and fluorescent characteristics of cells or particles in suspension. This assay quantifies cell populations based on parameters such as cell size (forward scatter), granularity (side scatter), and fluorescence intensity of labeled surface or intracellular markers, enabling immunophenotyping, cell cycle analysis, viability assessment, and functional studies. Samples are ...
Submitter: Charles Demurjian
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: IMPAcTB