TruCyte and ScatterBridge (NTL)

ScatterBridge® Scatter Controls are a precision engineered synthetic hydrogel reference control designed to standardize forward and side scatter across flow cytometry instruments. Each vial contains nine distinct hydrogel populations that form a 3×3 grid when plotted on FSC and SSC, spanning scatter coordinates representative of biologically relevant samples. This structure supports consistent calibration, linearity checks and long‑term performance tracking across instruments and sites.ScatterBridge can be used to align scatter settings between instruments, optimize FSC and SSC detection and recalibrate scatter following major instrument service. As synthetic, non-biohazardous materials, they require no special handling or disposal. Product Features Nine distinct hydrogel populations that form a 3x3 grid when plotted on FSC vs SSC. The scatter coordinates of the nine populations span a range of biologically relevant samples. Resources: Technical Data Sheet Safety Data Sheet

QuantCytes™ CD19 quantitation controls are precision engineered lyophilized cell mimics designed to quantify CD19 molecules per cell and support consistent expression benchmarking across research and development workflows. These synthetic cells feature the CD19 biomarker with scatter properties resembling human lymphocytes, enabling realistic assay performance and reliable calibration. Each kit provides four defined populations representing negative, low, medium and high CD19 expression levels. Each positive population contains a known number of CD19 molecules, generating distinct fluorescence intensities and antigen density levels for accurate quantification. Using a PE or APC conjugated CD19 antibody, these controls allow direct measurement of antibody binding capacity without requiring knowledge of fluorophore molecules per antibody. Incorporating the measured intensities into the provided Antigen Density Calculator enables generation of a signal to antigen standard curve that can be used to quantify antigen densities on cell targets with the same instrumentation and antibody. As with all QuantCytes™ products, QuantCytes™ CD19 quantitation controls are safe to use in any environment, contain no biohazardous material and require no special disposal. ResourcesTechnical Data Sheet Certificate of Analysis Antigen Density Calculator Poster: Enhancing Immunophenotyping Standardization in Clinical Labs with Quantitative BCMA or CD19 Cell Mimics

CD34+ Stem Cell Mimic™ is a lyophilized cell mimic designed for reliable performance checks and normalization controls in immunophenotyping and flow cytometry workflows. This product features CD34, CD45 and DNA‑based viability biomarkers with scatter characteristics that closely resemble human lymphocyte populations. It provides a high density CD34+ population with frequencies comparable to biological samples such as cord blood, bone marrow and mobilized peripheral blood cells (~90% CD34+, as a percentage of CD45+ cells), enabling confident population discrimination and gating. The control is intended to provide positive signal detection for CD45 and both positive and negative signal detection for CD34 and viability. It supports robust gating strategies for CD34 enumeration and viability assessment and serves as a dependable tool for antibody qualification and staining verification. The kit comprises three lymphocyte‑mimic populations designed for clear transferable gates: CD45+ cells, CD45+/CD34+ cells and CD45+ cells with a viability readout. This well‑defined population structure supports accurate gating, viability discrimination and instrument verification across daily QC, assay validation and longitudinal performance monitoring. The lyophilized format ensures consistent reconstitution and extended shelf life, making the CD34+ Stem Cell Mimics suitable for multi‑site standardization and long‑term assay harmonization across diverse cytometry platforms. Resources: Technical Data Sheet Certificate of Analysis

Slingshot Labs single biomarker CD4(+), CD4(-) are lyophilized cell mimics that feature CD4+ biomarkers with scatter properties similar to lymphocyte populations. ResourcesTechnical Data Sheet