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Hielscher has released an in-depth article on ultrasound that gives an overview of its purpose, its applications and advantages in processing applications working with nano-size materials.

Ultrasound is an effective processing method in the generation and application of nano-size materials.

It is used in a wide range of physical, chemical and biological processes.

Homogenising, emulsifying, and dispersing are examples for physical processes.

In general, ultrasonic cavitation in liquids may cause fast and complete degassing; initiate various chemical reactions by generating free chemical ions (radicals); accelerate chemical reactions by facilitating the mixing of reactants; enhance polymerisation and depolymerisation reactions by temporarily dispersing aggregates or by permanently breaking chemical bonds in polymeric chains; increase emulsification rates; improve diffusion rates; produce highly concentrated emulsions or uniform dispersions of micron-size or nano-size materials; assist the extraction of substances such as enzymes from animal, plant, yeast, or bacterial cells; remove viruses from infected tissue; and erode and break down susceptible particles, including micro-organisms Ultrasound can be tested in lab and bench-top scale before the results are scaled up to the commercial level.

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Hielscher Ultrasonics is worldwide known as top supplier for innovative ultrasonic devices from lab homogenizers to industrial processing reactors. Typical applications include, mixing and homogenizing, grinding, dispersing & emulsifying, extraction, lysis & disintegration as well as sonochemistry.

Covering this wide range of applications, Hielscher’s ultrasonic devices are successfully used in almost every liquid processing industry: Dispersing and wet-milling of particles in the ink, paint and coating sector; processing of nanomaterials, i.e. to precipitate or functionalize nano-size particles; ultrasonic mixing for the biodiesel production; sonochemistry and sonocatalysis to improve chemical reactions; lysis, fermentation and digestion for biological applications; homogenizing, extracting and pasteurization for food processing; or ultrasonic cleaning for endless materials, such as wire, cable, rods, tapes or tubes. Ultrasonic devices made by Hielscher are used for lab samples, pilot scale processing, process optimization and full scale production.

This includes ultrasonic devices for the ultrasonication of any liquid volume, from several microliters through hundreds of cubicmeters per hour. For more information, please visit Hielscher’s website: www.hielscher.com  

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