Resuspending samples in analytical ultracentrifugation.

Area of Science:

• Biophysical techniques
• Biochemistry
• Analytical chemistry

Background:

• Analytical ultracentrifugation (AUC) is a powerful technique for characterizing macromolecules.
• Resuspending samples in situ after sedimentation is crucial for further analysis in AUC.
• Manual resuspension methods can be inconsistent and labor-intensive.

Purpose of the Study:

• To develop and present a novel, low-cost, open-source cell mixer for analytical ultracentrifugation.
• To provide an efficient and reproducible method for in situ sample resuspension after AUC experiments.

Main Methods:

• The cell mixer utilizes axial rotation and slow rocking motion to induce convection.
• The device is designed for easy assembly from readily available components.
• It accommodates multiple sample cells and various centerpiece designs.

Main Results:

• The cell mixer effectively resuspends samples in situ, facilitating further investigation.
• The device is low-cost, open-source, and easily assembled.
• It allows for efficient mixing of multiple samples simultaneously.

Conclusions:

• The described cell mixer offers a practical and accessible solution for in situ sample resuspension in analytical ultracentrifugation.
• This innovation can improve the efficiency and reproducibility of AUC experiments.
• The open-source nature promotes wider adoption and potential further development.