Density Gradient Centrifugation: 20% Sucrose Solution is used to form gradients for separation of viruses, organelles, and macromolecular complexes.

Sucrose Cushion Ultracentrifugation: Provides a 20% Sucrose Solution cushion to concentrate and purify viral particles (e.g., AAV, lentivirus, influenza) and ribosomes.

Osmotic Stabilization: Maintains osmotic balance during spheroplasting of Escherichia coli and other Gram-negative bacteria, and during yeast protoplasting.

Competent Cell Handling: Acts as an osmoprotectant for Escherichia coli during preparation, washing, and electroporation.

Membrane Vesicle Isolation: Supports isolation of bacterial outer membrane vesicles and exosomes by differential/gradient centrifugation.

Polysome and Ribosome Profiling: Stabilizes ribosomes and polysomes during extraction and gradient separation.

Organelle Isolation: Facilitates separation of nuclei, mitochondria, and lysosomes from cell lysates via gradient or cushion centrifugation.

Sample Loading Aid for Electrophoresis: Increases sample density for efficient well loading in DNA/RNA/protein gels.

Protein and Enzyme Stabilization: Protects labile proteins and enzymes during storage, freeze–thaw, and handling.

Virus Purification Workflows: Used as a cushioning or density agent in downstream clarification and purification steps.