Analysis of Probe Transport in Porous Media by Nanoparticle tracking analysis (NTA) (CAT#: STEM-MB-0736-WXH)

Introduction

From the granular and fractured subsurface environment to highly engineered polymer membranes used in pharmaceutical purification, porous materials are ubiquitous in nature and industrial applications. In particular, porous media are used extensively in processes including water treatment, pharmaceutical sterilization, food/beverage processing, and heterogeneous catalysis, where hindered mass transport is either essential to the process or a necessary but undesirable limitation.

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Principle Applications Procedure Materials Notes Related Products

Principle

Nanoparticle tracking analysis (NTA) is a method for visualizing and analyzing particles in liquids that relates the rate of Brownian motion to particle size. The rate of movement is related only to the viscosity and temperature of the liquid; it is not influenced by particle density or refractive index. NTA allows the determination of a size distribution profile of small particles with a diameter of approximately 10-1000 nanometers (nm) in liquid suspension.

Applications

NTA has been used by commercial, academic, and government laboratories working with nanoparticle toxicology, drug delivery, exosomes, microvesicles, bacterial membrane vesicles, and other small biological particles, virology and vaccine production, ecotoxicology, protein aggregation, orthopedic implants, inks and pigments, and nanobubbles.

Procedure

1. Sample preparation
2. Nanoparticle Tracking Analysis
3. NTA Data Processing, Display, and Interpretation

Materials

• Nanoparticle Tracking Analysis (NTA) instrument
• NanoSight instrument
• Nanoparticle Analyzer

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