A method for preparing multiple sucrose gradients by quickly freezing layers of sucrose has been developed. These gradients may be stored in the freezer indefinitely, and thawed from 8 to 24 h at 4°C before use. The middle region of the resulting sucrose gradients was linear. Thawing time and centrifugation had little effect on the shape of the gradient. The method is applicable for both small- and large-volume centrifuge tubes. Gradients prepared in the same batch were nearly identical.
All Science Journal Classification (ASJC) codes
- Molecular Biology
- Cell Biology