Dynamic Light Scattering Instrument----Tianjin Institute of Industrial Biotechnology

Structural biology research platform Laboratory

Shared Equipment

Dynamic Light Scattering Instrument

Time：2024-12-19

Model: 90Plus

Manufacturer: Brookhaven

Acquisition Date: 2012

Contact: Jie Zhang

Phone Number: 15022142553

Email: zhang_j@tib.cas.cn

Main configuration and technical specifications:

Particle size measurement range: <1 nm to 6 μm (dependent on refractive index, concentration, and scattering angle)；
Sample types: particles of any size within the colloidal range;
Sample volume: 50 µl to 3 ml;
Temperature control range and accuracy: 5℃to 100℃, ±0.1℃;
Scattering angle: 15° and 90°;
Laser source: 35 mW solid-state laser.

Application and characteristics:

This instrument determines the diffusion rate of macromolecules in solution by analyzing the doppler shift caused by molecular motion, which is then used to calculate particle size and distribution based on the relationship between diffusion rate and particle size. Its applications include particle size measurement, dynamic parameter characterization, gel/crystal transitions, high-concentration colloidal suspensions, as well as studies in proteins, nucleic acids, and nanomaterials.

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