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A capacity for mixing in capillary wells for microplates
Jonathan Kok Keung Lye1, Tuck Wah Ng, Adrian Neild
1Laboratory for Optics, Acoustics, and Mechanics, Department of Mechanical and Aerospace Engineering, Monash University, Clayton, Victoria 3800, Australia.
Analytical Biochemistry
|November 17, 2010
Summary
Mixing reagents before dispensing into microplates is challenging. This study introduces a capillary-based method using air actuation and surface tension to create pendant drops, enabling efficient mixing within the drops for improved assay investigations.
Area of Science:
- Biotechnology
- Analytical Chemistry
- Microfluidics
Background:
- Accurate sample and reagent mixing is crucial for microplate-based assays.
- Pre-dispensation mixing can be problematic, especially with varying reagent proportions.
Purpose of the Study:
- To develop a novel, effective method for mixing reagents within microplate instrumentation.
- To address the limitations of traditional pre-dispensation mixing techniques.
Main Methods:
- Utilized capillaries to create pendant drops using air actuation and liquid surface tension.
- Leveraged the inherent inner circulatory flow within pendant drops for reagent mixing.
Main Results:
- Demonstrated a simple and highly effective capillary-based mixing method.
- The pendant drop configuration facilitated efficient mixing through internal fluid dynamics.
Conclusions:
- The proposed method offers a promising solution for reagent mixing in microplate assays.
- This technique has the potential for integration into microplates to enhance assay performance and reliability.

