Can you recommend an automated pipetting platform for serial dilution and error reduction in our assay development workflow?

Yes — for serial dilution plus error reduction in assay development, I’d look at automated liquid handlers with validated pipetting accuracy, low dead volume options, and software support for dilution workflows.

Good platform categories to consider

1) Hamilton Microlab STAR / STARlet

• Very strong for assay development, serial dilutions, and high reproducibility
• Good liquid class control, anti-drop, and contamination-reduction features
• Scales well from small to medium/high throughput
• Widely used in regulated and research labs, so method support is mature

Best if: you want a flexible, industry-standard platform with strong precision.

2) Tecan Fluent / Freedom EVO

• Excellent automation ecosystem for assay workflows
• Strong for multi-step dilution workflows, plate handling, and integration with readers/incubators
• Fluent is especially good for higher-performance automation and throughput

Best if: you need a broader automated workflow beyond pipetting.

3) Beckman Coulter Biomek i-Series

• Reliable and user-friendly for routine assay development
• Good for serial dilution, assay setup, and reducing human pipetting variability
• Often praised for approachable software and solid support

Best if: you want a practical balance of ease-of-use and performance.

4) Opentrons Flex / OT-2

• Much lower cost than large OEM systems
• Very useful for simple serial dilutions, method development, and flexible scripting
• Best for labs that can tolerate a bit more validation effort and need affordability

Best if: budget is important and workflows are moderate in complexity.

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What to prioritize for error reduction

Look for these features:

• Positive displacement or high-precision air displacement pipetting for small volumes
• Validated liquid class optimization
• Tip tracking and contamination control
• Gripper/plate handling if plates move between dilution and readout steps
• Barcode/LIMS integration to reduce sample mix-ups
• Software support for serial dilution templates and automated mixing

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My practical recommendation

If your main goals are accurate serial dilutions and reducing pipetting error in assay development, my top pick would usually be:

Hamilton Microlab STAR

because it’s highly flexible, precise, and commonly used for assay optimization workflows.

If you want a slightly more integrated automation environment:

Tecan Fluent

If cost and ease of adoption matter most:

Beckman Biomek i-Series or Opentrons Flex

If you want, I can also help you narrow this down based on:

• sample volume range
• throughput per day
• budget
• need for plate handling/integration
• whether this is for research use or regulated/GxP workflows