Ultrasonic topic: "How to use ultrasonicators"
Ultrasonicators are ultrasonic probe-type devices, which are used for manifold applications including homogenization, dispersing, wet-milling, emulsification, extraction, lysis, disintegration, and chemical reactions.
The working principle of an ultrasonicator is based on the phenomenon of acoustic cavitation. When intense ultrasound waves are coupled into a liquid, alternating high-pressure / low-pressure cycles travel through the liquid. During the low-pressure cycles, the ultrasonic waves create minuscule vacuum bubbles, which grow over several pressure cycles. When the vacuum bubbles reach a volume at which they cannot absorb further energy, they implode violently during a high-pressure cycle. Briefly, cavitation is the growth and collapse of vacuum bubbles or cavities. During the bubble implosion, an exceptionally energy-dense field is created. In an acoustic cavitation field, extreme conditions – including very high temperature and pressure differentials, turbulences, shear forces and liquid jets – can be measured. These intense cavitational forces are used to fulfil the manifold applications mentioned above.
Ultrasonicators create cavitation to apply it purposefully to liquids, slurries and gas in order to achieve particle size reduction, mixing of oil/water phases, cell disruption or to induce chemical reactions.
Sonication (also ultrasonication) describes the process of applying ultrasound energy to a liquid or slurry. Hielscher Ultrasonics designs, manufactures and distributes high-intensity, low-frequency ultrasonicators from lab & bench-top to fully industrial scale.
Read more about ultrasonicators and their applications!
Found 40 hits. Showing results 13 - 24.
Ultrasonicators for ASTM D5621 Sonic Shear Stability of Hydraulic Fluids
The ASTM D5621 standard test method describes the sonic shear stability testing of hydraulic fluids and their viscosities at 40°C and 100°C, respectively. In order to test and determine the viscosity stability of hydraulic fluids under shear, a reliable testing…
https://www.hielscher.com/ultrasonicators-for-astm-d5621-sonic-shear-stability-of-hydraulic-fluids.htmUltraSonicators for ASTM D2603 Shear Stability Testing
The ASTM D2603 standard describes the sonic shear stability testing of hydraulic fluids under ultra-sonically induced shear stress. Hielscher ultra-sonicators are used as reliable shear creating devices used for shear stability testing of hydraulic fluids in accordance to ASTM D2603…
https://www.hielscher.com/ultra-sonicators-for-astm-d2603.htmImproved Fruit and Vegetable Gelation by Ultrasonics
Thickening sauces, juices, jams and other foods by gelation is a common process in the production of liquid foods. Ultrasonic extraction of pectins and natural intracellular sugars from fruits and vegetables is a highly efficient method to promote the gelation…
https://www.hielscher.com/improved-fruit-and-vegetable-gelation-by-ultrasonics.htmUltrasonic Lysis of Drosophila Melanogaster Samples
Drosophila melanogaster is widely used in laboratories as model organism. Therefore, pre-analytical preparation steps such as lysis, cell disruption, protein extraction and DNA shearing of Drosophila melanogaster samples must be frequently carried out. Ultrasonic dismembrators are reliable and efficient and…
https://www.hielscher.com/lysis-of-drosophila-melanogaster-samples.htmHigh Shear Mixing with Ultrasonics
High shear mixers apply high shear forces into liquids and slurries in order to provide the uniform dispersing, blending, and emulsification of two or more liquid-solid or liquid-liquid phases. Ultrasonication generates high shear forces via acoustic cavitation, which occurs when…
https://www.hielscher.com/high-shear-mixing-with-ultrasonics.htmUltrasonic Disintegration: Wetting, Dissolving, Dispersing
Ultrasonic integrators are widely used to wet, disperse or dissolve particles and powders into liquids. High-performance ultrasonicators create intense shear forces, which break and shatter aggregates, agglomerates and primary particles to microscopic or nano size. The uniform particle processing in…
https://www.hielscher.com/disintegration-wetting-dissolving-dispersing.htmUltrasonic Algae Extraction for Nutritional Supplements
Ultrasonic extraction is the superior method to disrupt algae cells effectively and rapidly. Sonication can release the complete amount of the bioactive compounds, which makes the ultrasonic technique highly efficient. How To Extract Proteins, Lipids and Phenolics from Algae with…
https://www.hielscher.com/ultrasonic-algae-extraction-for-nutritional-supplements.htmCoronavirus (COVID-19, SARS-CoV-2) and Ultrasonics
Ultrasonication is a powerful tool used in biology, molecular chemistry and biochemistry as well as in the production of pharmaceuticals. Bio-sciences use ultrasonic homogenizers to lyse cells and extract proteins and other intracellular materials, the pharma industry applied ultrasonics to…
https://www.hielscher.com/coronavirus-covid-19-sars-cov-2-and-ultrasonics.htmPharmaceuticals Encapsulated in Lipid Nanoparticles with Ultrasonics
Nano-size drug carriers are widely used to deliver pharmaceutically active compounds into the targeted cells. In order to encapsulate the active substances into a drug carrier with a high bioavailability, solid lipid nanoparticles are used. Ultrasonic nano-emulsification and encapsulation is…
https://www.hielscher.com/pharmaceuticals-encapsulated-in-lipid-nanoparticles-with-ultrasonics.htmUltrasonics in Virus Research
Ultrasonic lysis and extraction is a reliable and long-time established method for the disruption of cells and the subsequent release of viruses, viral proteins, DNA, and RNA. Ultrasonics in Coronavirus Research The extraction of viruses from organ tissue is an…
https://www.hielscher.com/ultrasonics-virus-research.htmImproved Fischer-Tropsch Catalysts with Sonication
Improved Synthesis of Fischer-Tropsch Catalysts with Ultrasound: Ultrasonic treatment of catalyst particles is used for several purposes. Ultrasonic synthesis helps to create modified or functionalized nano-particles, which have a high catalytic activity. Spent and poisoned catalysts can be easily and…
https://www.hielscher.com/improved-fischer-tropsch-catalysts-with-sonication.htmUltrasonic Kratom Extraction
Ultrasonication is a highly effective, simple and reliable technique to produce alkaloid-rich extracts from kratom leaves (Mitragyna speciosa). Sonication releases bioactive compounds such as mitragynine and 7-hydroxymitragynine from the plant cells so that they can be isolated. Ultrasonic extraction provides…
https://www.hielscher.com/ultrasonic-kratom-extraction.htm










