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 25 - 36.
Ultrasonic Resveratrol Inclusion Complex
Resveratrol is a polyphenol, which promises many health benefits, e.g. prolonging life span, and to treat heart disease, diabetes, cancer, Alzheimer's as well as other chronic conditions. However, resveratrol has a low bioavailability and shows a rapid clearance from the…
https://www.hielscher.com/ultrasonic-resveratrol-inclusion-complex.htmUltrasonic Production of Conductive Inks on Large Scale
Uniformly dispersed nanoparticles such as silver, graphene or CNTs with an precisely tailored particle size are crucial for production highly conductive inks. Powerful ultrasonic dispersers allow to synthesize, deagglomerate and distribute metallic (e.g. Ag), carbon-based (e.g. CNTs, graphene) nanoparticles as…
https://www.hielscher.com/ultrasonic-production-of-conductive-inks-on-large-scale.htmUltrasonically Intensified Fixed Bed Reactors
Ultrasonic mixing and dispersion activates and intensifies the catalytic reaction in fixed bed reactors. The sonication improves the mass transfer and increases thereby efficiency, conversion rate and yield. An additional benefit is the removal of passivating fouling layers from the…
https://www.hielscher.com/ultrasonically-intensified-fixed-bed-reactors.htmUltrasonic Protein Extraction from Tissue and Cell Cultures
Protein extraction is an essential sample preparation step in proteomics. Proteins can be extracted from plant and animal tissue, yeasts and microorganisms. Sonication is a reliable, efficient protein extraction method giving high protein yields within a short extraction time. Protein…
https://www.hielscher.com/ultrasonic-protein-extraction-from-tissue-and-cell-cultures.htmPickering Emulsions with Power Ultrasonics
Pickering emulsions are stabilized by solid particles. Pickering emulsions convince by their “emulsifier-free” character and their enhanced stability. Ultrasonic is the perfect tool to create Pickering emulsions by firstly dispersing the stabilizing particles into the water phase and secondly to…
https://www.hielscher.com/pickering-emulsions-with-power-ultrasonics.htmUltrasonic Dispersing of Activated Charcoal
Activated charcoal and active carbons are widely used in cosmetic, medical and industrial products. For best results, active charcoal must be uniformly dispersed: The smaller the particle size, the larger the particle surface, the better the activity. Ultrasonic dispersion gives…
https://www.hielscher.com/ultrasonic-dispersing-of-activated-charcoal.htmUltrasonic Priming of Seeds: How Sonication Improves Germination
Ultrasonic priming of seeds and grains result in a more complete and faster germination and higher crop yields. Ultrasonication perforates the seed testa (seed coating) and increases the uptake of water, nutrients and oxygen into the seed grains. The ultrasonic…
https://www.hielscher.com/ultrasonic-priming-of-seeds-how-sonication-improves-crop-germination.htmUltrasonic Lysis for Western Blotting
The western blot is an analytical procedure for the detection of specific proteins in a sample of tissue homogenate or cell extract. To run a Western blot or to measure enzyme activity, many assays require access to the materials (e.g.…
https://www.hielscher.com/ultrasonic-lysis-for-western-blotting.htmUIP2000hdT – 2000 Watts Powerful Industrial Ultrasonicator for Full Process Control
The new digital probe-type sonicator UIP2000hdT (20kHz, 2000W) is a powerful ultrasound processor for liquid treatments on bench-top and industrial scale. Common applications include homogenization, emulsification, dispersing and particle fine milling, lysis and extraction, dissolving or sonochemical reactions, such as…
https://www.hielscher.com/uip2000hdt-2000-watts-powerful-industrial-ultrasonicator-for-full-process-control.htmSonocatalysis – Ultrasonically Assisted Catalysis
Ultrasonication affects the catalyst reactivity during catalysis by enhanced mass-transfer and energy input. In heterogeneous catalysis, where the catalyst is in a different phase to the reactants, ultrasonic dispersion increases the surface area available to the reactants. Background of Sonocatalysis…
https://www.hielscher.com/sonocatalysis_catalysis.htmSonicator UIP1000hdT (1000 Watts) – Powerful and Versatile
The UIP1000hdT (1000W, 20kHz) is a powerful and adaptable probe-type sonicator for lab testing and the industrial sonication of liquids. It is used for applications, such as emulsification, dispersing, particle fine milling, lysis, extraction, dissolving and sonochemical reactions. Color touch…
https://www.hielscher.com/i1000_p.htmSonicator UIP1500hdT – High Ultrasonic Processing Power
The probe-type sonicator UIP1500hdT (20kHz, 1500W) combines high processing power with flexibility and user-comfort. This 1.5kW powerful ultrasonic homogenizer is suitable for process development, optimization and for production processes. This includes emulsifying, dispersing and sono-chemistry, lysis and extraction or homogenizing.…
https://www.hielscher.com/i1500_p.htm









