Wyatt Technology Light Scattering Instruments and Systems

Wyatt Technology Light Scattering Instruments and Systems

Measure absolute molecular weight, size, charge and particle concentration with or without separation, with Waters + Wyatt.

Measure absolute molecular weight, size, charge and particle concentration with or without separation, with Waters + Wyatt.
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Light scattering is ideal for scientists that would like to consistently quantify a molecule’s size, size distribution, molecular weight, and conformation, all of which are intrinsically linked to the stability, efficacy, safety, and function of a molecule – whether it is biologic or a polymer.


MALS instruments are added to SEC, IEX, or AF4 separations for absolute determination of a protein, viral vector, or nanoparticle’s molar mass, size, conformation, titer and payload.

This three angle MALS detector couples to your HPLC to determine the absolute molar masses and sizes of macromolecules and nanoparticles in solution from 200 Da to 10 Mda (proteins) or 1 MDa (polymers). It is ideal for peptides, proteins and small viruses or polymers with a radius <50 nm.

The microDAWN MALS detector performs absolute characterization of macromolecules eluting from UPLC or UHPLC, characterizing proteins and other molecules smaller than 50 nm in radius. Its small interdetector dispersion produces minimal band broadening in order to maintain the narrow peaks typical of UHPLC.

The ultraDAWN™ real-time multi-angle light scattering (RT-MALS) instrument is designed for in-line or on-line monitoring of key attributes of macromolecules and nanoparticles such as proteins, biopolymers, gene vectors and nanodrug-delivery vehicles. It provides molar mass, size, particle concentration and payload and its data may be fed back to the process controller via OPC-UA.

The ZetaStar instrument performs simultaneous DLS and SLS or ELS, delivering size, polydispersity, zeta potential, particle concentration, and turbidity for analytes ranging from proteins to nanoparticles, with full automation via Arc HPLC.

This manual DLS Instrument can measure a protein, viral vector or nanoparticle’s size, polydispersity, concentration, and turbidity for aggregation, colloidal propensity and thermal stability studies.

Automated DLS in 96, 384, or 1536 microwell plates for high-throughput protein, viral vector or nanoparticle stability and formulation screening of size, polydispersity, aggregation, and particle concentration.

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AF4 provides low-shear, size-based separations of biologic macromolecules and nanoparticles from 1 nm to 10 µm. It works with on-line MALS, DLS, UV, RI, fluorescence, and viscometry detectors.

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Light scattering instruments, such as Dynamic Light Scattering (DLS), Electrophoretic Light Scattering (ELS), and Multi-Angle Light Scattering (MALS), are essential tools for analyzing particles and molecules in solutions. These techniques help researchers measure properties like particle size, molecular weight, surface charge, and structure. They are widely used in industries such as pharmaceuticals, biotechnology, nanotechnology, and polymer science for both research and quality control.

Dynamic Light Scattering (DLS) measures the size of particles by observing their motion in solution. It is commonly used to study protein aggregation, ensuring stability in biopharmaceuticals, and to analyze nanoparticles like micelles and liposomes, which are crucial for drug delivery systems. Instruments like the DynaPro series are ideal for high-throughput analysis and low-concentration samples, supporting efficient workflows.

Electrophoretic Light Scattering (ELS) focuses on zeta potential, which measures particle surface charge and indicates stability. This is essential for optimizing formulations, such as suspensions and emulsions, by guiding the use of stabilizers or adjusting pH levels.

Multi-Angle Light Scattering (MALS) provides detailed measurements of molecular weight, size, and shape without needing calibration standards. Combined with chromatography (e.g., SEC-MALS), MALS is used in biopharmaceuticals to analyze proteins, antibody-drug conjugates, and viral vectors. It is also valuable in polymer science for studying molecular weight distributions and branching. Instruments like the DAWN and miniDAWN offer precise, high-resolution data for these applications.

Wyatt"s systems integrate with complementary technologies, such as Field-Flow Fractionation (FFF), to separate particles by size before analysis, and concentration detectors like Optilab RI, which enhance measurement accuracy. These tools allow for detailed characterization of complex samples, including protein aggregates and nanoparticles.

Light scattering techniques are applied across industries for tasks such as improving protein stability in pharmaceuticals, characterizing nanoparticles in nanotechnology, and studying polymers for material science. Their ability to provide non-destructive, high-precision measurements makes them versatile and indispensable in modern research and development. Wyatt"s instruments are known for their reliability, accuracy, and ease of integration, helping scientists gain deeper insights and drive innovation in their fields.