Low Angle Light Scattering (LALS) is a technique used to measure the scattering of light at small angles by particles or macromolecules in a solution. It provides information about the size, shape, and interactions of the particles. By analyzing the intensity and angular distribution of the scattered light, LALS enables the characterization of particle size distributions, molecular weights, and structural properties of various materials in liquid samples. It is commonly applied in fields such as biophysics, polymer science, and colloid chemistry for studying particle suspensions, macromolecular solutions, and complex fluids.