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Device Design

(1) Cell-Laden Droplet Generation

Using a droplet generation chip designed by the BioMint Lab, we developed a control system to produce droplets with variable input diameters. Using Fluigent pressure pumps to drive the oil and aqueous phase flow rates, adjusting the aqueous pressure allows for variable droplet sizes.

Real-Time Droplet Population Sizing
Histogram to Visualize Droplet Population Sizing
Plot to Visualize Mean Droplet Diameter Over Time

(2) Rotate Cells in Microwell Array

Using Fluigent Pressure Pumps to drive to oil and aqueous flow rates, we optimize the rotation rate of the cell using a closed-loop control system. The cell-laden droplets are trapped in a microwell array and oil flows past the aqueous droplets. The microfludic chip design allows for high-throughput processing of the spinning cells and prepares them for imaging.

Consistant Cell Rotation Rate
Variable Rotation Rate Control
Robust Microfluidic Chip Design

(3) Reconstruct 3D Images from Rotating Cells

Once the 2D projections are collected from the rotating cell in step 2, a 3D reconstruction of the cell is produced. This 3D model can give insights to not only the topography, but different cell structures such as the nucleus by utilizing different flourescent dyes.

Visualize Cell Structures in 3D Views
Time Efficient Reconstruction
High Resolution