Advancing Antibody Cocktail Solutions: Empowering CROs with Pluto Automation

By Melvin Lye, Senior Director of Scientific Affairs

The preclinical CRO market is projected to reach USD 8.4 billion by 2030, driven by the rise in high-throughput studies and the demand for reproducible biomarker data in drug development. 

Yet, many Contract Research Organizations (CROs) still rely on manual pipetting for antibody cocktailing, creating bottlenecks that threaten timelines and data quality. 

For CROs handling high-parameter immunophenotyping (>20 colors), every additional panel amplifies the risk of pipetting errors, reagent waste, and operator fatigue. Manual prep is no longer scalable—automation has become a must-have for competitive CROs. 

The CRO Bottleneck in Flow Cytometry Sample Prep 

Traditional workflows rely heavily on centrifuge-based washing and manual antibody mastermixing. These processes create three major issues: 

1. Results 

  • Operator variability leads to shifts in fluorescence intensity and staining reproducibility. 

 

2. Labor & Reagent Costs 

  • 50+ pipetting steps per 24-color panel increase the risk of waste and human error. 

 

3. Throughput Limitations 

  • Scaling to hundreds of samples per run is nearly impossible without automation. 

 

“The Pluto Workstation reduced our hands-on time by over 75% and improved replicate consistency across 20+ color panels.”

Pluto Workstation: Transforming CRO Workflows 

Curiox’s C-FREE™ Pluto Workstation is designed to automate antibody cocktail preparation, staining, and cell washing in one compact benchtop system. It delivers: 

  • Walkaway Automation: 96-well throughput with 96-channel pipetting 
  • Reduced Human Error: Scripted protocols eliminate pipetting variability 
  • Regulatory Alignment: Supports GLP/GMP-ready workflows with audit trails 

This approach not only accelerates sample prep but also standardizes input data for downstream AI/ML analysis—critical for CROs running complex studies for pharma clients. 

Manual vs. Automated Workflow Comparison 

Feature Manual Workflow Pluto HT Automation
Antibody Cocktailing
Hand pipetting
Automated, reproducible workflows
Throughput
Limited by staff
96+ samples per run
Cell Washing
Centrifuge-based
Gentle laminar wash, no spin
Variability
Operator-dependent
Standardized protocols
Regulatory Readiness
Manual logs
Built-in audit trails

Why Leading CROs Choose Pluto 

CROs and AI-empowered biotech like IMU Biosciences are leveraging Pluto systems to stay competitive in an increasingly complex preclinical landscape: 

  • IMU Biosciences adopted Pluto for the UK’s £21.9M MANIFEST consortium, ensuring reproducible AI-driven immune profiling at scale. 

FAQ: CRO Considerations for Automating Flow Cytometry 

  1. What is automated antibody cocktailing?
    Pluto automates the mixing and distribution of antibodies, eliminating manual error and batch-to-batch variability.
  2. Does automation affect cell viability?
    No—Pluto’s gentle laminar wash preserves fragile and rare cell populations better than centrifugation.
  3. How long does it take to implement Pluto?
    Typical CROs achieve full onboarding in 4–8 weeks, including protocol validation, scripting, and training.
  4. Is Pluto compatible with existing labware?
    Yes—Pluto supports standard 96-well and deep-well plates, plus temperature-controlled antibody racks.
  5. How does automation impact regulatory alignment?
    Audit-ready logs, traceable reagent usage, and reproducible workflows help meet GLP/GMP requirements.

Future-Proofing CRO Operations 

With increasing pressure on CROs to deliver reproducible, high-throughput, and cost-effective immunophenotyping, automation is no longer optional. By adopting Pluto, CROs can: 

  • Accelerate study timelines with walkaway sample prep 
  • Standardize results across operators, sites, and studies 
  • Reduce reagent waste and operational costs 
  • Enable AI/ML-ready datasets for precision research