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| Company | Waters | Wyatt Technology | Waters | Wyatt Technology | Waters | Wyatt Technology |
| Item | miniDAWN™ Multi-Angle Light Scattering (MALS) Detector for SEC-MALS | DynaPro™ ZetaStar™ Dynamic, Electrophoretic, and Static Light Scattering Instrument | microDAWN™ Multi-Angle Light Scattering Instrument for UHP-SEC-MALS |
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| Catalog Number | miniDAWN | DynaPro ZetaStar | microDAWN |
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| Description | Couple the miniDAWN™ to your favorite HPLC or FPLC to determine the absolute molar masses and sizes of macromolecules and nanoparticles in solution from hundreds to millions of Daltons—without the need for column calibration standards. This sensitive unit requires as little as 25 ng injected Couple the miniDAWN™ to your favorite HPLC or FPLC to determine the absolute molar masses and sizes of macromolecules and nanoparticles in solution from hundreds to millions of Daltons—without the need for column calibration standards. This sensitive unit requires as little as 25 ng injected sample, 100 kDa polystyrene in THF (varies for other samples and solvents). The miniDAWN is engineered with self-contained modules that are easily replaced making it field serviceable. The system-ready monitors soise levels in real-time and an all-green status indicator lets you know when your system is ready for data collection. The optional DLS module uses the WyattQELS™ module, which fits inside the miniDAWN to providing on-line dynamic light scattering for determining radii down to 0.5 nm. All light scattering cells are subject to contamination by particles and to combat this issue the instrument has a self-cleaning, embedded COMET™ ultrasonic module. For maximum reliability and uptime, program the miniDAWN to automatically clean the cell after every run. The units may also be combined with a Calypso™ composition-gradient system to characterize biomolecular interactions.... Read More | Unique among its peers, the DynaPro™ Zetastar™ performs simultaneous dynamic and static light scattering or dynamic and electrophoretic light scattering (DLS/SLS/ELS) measurements all within one instrument. Automate measurements of zeta potential and size for up to 96 samples at a time Unique among its peers, the DynaPro™ Zetastar™ performs simultaneous dynamic and static light scattering or dynamic and electrophoretic light scattering (DLS/SLS/ELS) measurements all within one instrument. Automate measurements of zeta potential and size for up to 96 samples at a time or measure manually with cuvettes with the walk-up touch screen functionality for optimal efficiency. Quickly quantify size, polydispersity, zeta potential/charge, particle concentration, molar mass or turbidity for characterization and stability studies.
Key Features:
- DYNAMICS™ Touch on-board app for walk-up, self-guided operation
- Pairable with a Waters HPLC and Pump to automate measurements of zeta potential and size
- Flow Mode for best-in-class zeta potential reproducibility and precision for samples in high salt buffers or prone to degradation
- Adaptive collection for faster and simpler measurements of zeta potential
- Measure size and turbidity with just 2 µL of solution, or zeta potential with as little as 65 µL of solution
- A selection of high-quality quartz and disposable cells and cuvettes for both size and zeta potential measurements
... Read More | The microDAWN™ MALS detector performs absolute characterization of macromolecules eluting from UHPLC (or UPLC), determining molar mass and size independently of retention time and molecular reference standards. This instrument offers superb sensitivity over a wide range of molar mass, size andThe microDAWN™ MALS detector performs absolute characterization of macromolecules eluting from UHPLC (or UPLC), determining molar mass and size independently of retention time and molecular reference standards. This instrument offers superb sensitivity over a wide range of molar mass, size and concentrations. In most respects, the microDAWN is similar to the well-established miniDAWN, a workhorse MALS instrument used in hundreds of labs around the world for characterizing proteins and other molecules smaller than 50 nm in radius. The microDAWN is uniquely suitable for use in conjunction with UHPLC Size Exclusion Chromatography (µSEC-MALS) thanks to its small interdetector dispersion and produces minimal band broadening in order to maintain the narrow peaks typical of UHPLC. In some cases it may be used with ion-exchange or other types of chromatography.... Read More |
| Type | MALS and optional DLS | Dynamic Light Scattering (DLS), Electrophoretic Light Scattering (ELS), Static Light Scattering (SLS) | MALS and optional DLS |
| Particle Size | Inquire | 0.2 to 1000 nm | Inquire |
| Detector(s) | High-gain, high-dynamic range photodiodes at 3 detection angles for MALS. Optional avalanche photodiode for simultaneous dynamic light scattering measurements. | Inquire | High-gain, high dynamic range, static light scattering detectors at 3 angles |
| Measuring Time | Depedent on LC separation | 15 seconds typical | Depedent on LC separation |
| Light Source | 658 nm laser, programmable from 10% to 100% maximum power. | 785 nm laser, programmable 10% to 100% | 660 nm laser, programmable 10% - 100% of maximum power. |
| Applications | With SEC/GPC: determination of distributions of absolute molar mass, size, conformation, conjugate ratio. With Calypso CG-MALS: characterization of biomolecular interactions. | Analysis of proteins, gene vectors, viruses and virus-like particles, promiscuous inhibitors, micelles, nano-emulsions, lipid and metallic nanoparticles, and more. | With SEC/GPC: determination of distributions of absolute molar mass, size, conformation, conjugate ratio. |
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