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Cyto-Cellect®Plus (Human IgG κ and λ Detection) Assay Kit

Screen hundreds of thousands to millions of cells with speed and ease

Cyto-Cellect® Plus has been designed to work in conjunction with Cyto-Mine® platforms to detect whole molecules of human IgG secreted from cells encapsulated within picodroplets. Using Cyto-Cellect® Plus together with Cyto-Mine® technology  provides an assay for the measurement of single cell productivity by rapidly detecting secreted IgG, enabling the identification and selection of cells with the highest productivity.

* Note – this product is subject to a minimum order quantity

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Description

Overview

Overview

Confidently pinpoint your top-producing clones—fast. Cyto-Cellect® Plus is a ready-to-use, FRET-based assay that detects secreted human IgG with kappa (κ) and lambda (λ) light chains at the single-cell level. Designed for seamless integration with Cyto-Mine® technology, the assay co-encapsulates fluorescent probes with cells inside picodroplets. As secretion occurs, the probes bind to the antibody in close proximity, generating a measurable FRET signal. The result? Rapid, high-sensitivity insights into productivity—so you can move forward with confidence.

Who is it for?

  • Cell Line Development (CLD) Teams – Select high-yielding, stable clones with confidence.
  • CDMOs & BioPharma Companies – Accelerate therapeutic development.
  • Existing Cyto-Mine® platform users – Expanding capabilities with next-level multiplex assays.

How it works

Cyto-Cellect® Plus uses a FRET-based detection mechanism to quantify IgG secretion from individual cells. During Cyto-Mine® platform operation, each cell is encapsulated in a picodroplet alongside kappa and lambda-specific fluorescent probes. When a cell secretes IgG, the probes bind in close proximity, forming a ternary complex. This interaction alters the FRET signal, which is detected by the Cyto-Mine® laser system. The signal decreases as antibody concentration increases, enabling precise, high-throughput measurement of cell productivity.

A customized pair of IgG-specific AOF fluorescent probes are trapped within each picodroplet. IgG secreted from the encapsulated cell is recognized by the detection probe pair forming a ternary FRET complex that induces a change in fluorescent signal.

Features & Benefits

Features

  • Dual Light Chain Detection (IgGκ and IgGλ)
    Accurately detect and quantify human IgG molecules with κ and λ light chains in a single assay.
  • FRET-Based Assay for Secreted Antibodies
    Enables sensitive, real-time detection of antibody secretion from single cells encapsulated in picodroplets.
  • Optimized for Cyto-Mine® Platform Workflows
    Seamless compatibility with CHO culture media and Cyto-Mine® systems—no assay customization needed.
  • Animal-Origin-Free (AOF) Reagents
    Manufactured without human- or animal-derived materials to meet regulatory and quality expectations.
  • Workflow-Ready Reagent Kit
    Includes 10 pre-mixed vials (5 donor / 5 acceptor) for plug-and-play assay setup

Benefits

  • Confident Clone Selection.
    Detect only cells secreting complete antibodies—boosting reliability in selecting high-producing clones.
  • Accelerated Development Timelines.
    Streamline screening and shorten time-to-decision with high-throughput, single-cell resolution data.
  • Assay Simplicity = Faster Startup
    Skip lengthy optimization—validated probes work out of the box, reducing setup time and variability.
  • Improved Compliance Readiness.
    AOF formulation helps support traceability and regulatory alignment for GMP and CDMO partners.
  • Greater Insight, Less Reagent Waste
    Multiplex detection in nanoliter volumes provides more data per cell while minimizing assay costs.
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Cyto-Cartridge®

Discover the

Cyto-Cartridge®

The Cyto-Cartridge® is the core of the Cyto-Mine® platform, providing all the necessary microfluidics for implementing picodroplet workflows.

The disposable cartridge is designed to be easy-to-use, ensuring zero cross-contamination between runs and maintaining the integrity and quality of your cells for each experiment.

Cyto-Cartridges® are manufactured from fully biocompatible materials under our ISO 9001 quality management system, in a clean environment.

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