Microfluidic Chip vs Density Gradient Centrifugation on the Euploidy Rate of Pre-implantation Genetic Testing

Microfluidic chip method has been used for sperm sorting in order to select the most motile and morphologically normal sperm for use in assisted reproductive technologies (ART) such as in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI).

Density-gradient centrifugation is a commonly used method for sperm separation and purification. It is a technique that involves layering a semen sample on top of a gradient of different densities of a solution, typically a mixture of colloidal silica and sucrose, and then centrifuging the sample. The centrifugal force causes the sperm to migrate through the gradient, where they become separated based on their density.