Low Angle Light Laser Scattering (LALLS) is a technique used to study the size, shape, and structural properties of particles in a solution. It involves directing a laser beam at a low angle onto the particles and measuring the scattering pattern produced. By analyzing the scattered light at a small angle, LALLS provides information about the particle size distribution, aggregation, and molecular weight. It is commonly used in the field of biopharmaceuticals and polymer science to characterize particles and macromolecules in liquid samples.