Utrasonic topic: "nano"
High-performance sonication is a well-established technique for particle size reduction in nano-sized dispersions and emulsions. Besides the fine-size distribution of particles, ultrasonic processors are used to synthesise nano-structured materials such as nanodiamonds or to precipitate nanoparticles (e.g. magnetite (Fe3O4)).
Hielscher’s ultrasonic processors are available from lab to industrial size and can be used for batch and continuous inline sonication. Learn how sonication can improve your nano-material processing!
24 pages about this topic are being shown:
Ultrasonic Nano-Emulsification for Microencapsulation before Spray-Drying
In order to microencapsulate active ingredients via spray-drying, a fine-sized stable micro- or nanoemulsion must be prepared. Ultrasonic emulsification is a facile and reliable technique to produce stable micro- and nano-emulsions As alternative surfactant, biopolymers such gum arabi or…
https://www.hielscher.com/ultrasonic-nano-emulsification-for-microencapsulation-before-spray-drying.htm
Ultrasonic Milling of Thermoelectrical Nano-Powders
Research has shown that ultrasonic milling can be successfully used for fabrication of thermoelectric nanoparticles and has the potential to manipulate the surfaces of the particles. Ultrasonically milled particles (e.g. Bi2Te3-based alloy) showed a significant size reduction and fabricated…
https://www.hielscher.com/ultrasonic-milling-of-thermoelectrical-nano-powders.htm
Ultrasonic Dispersion of C60 into Supplements
Ultrasonic dispersion is the superior method to blend C60 homogeneously into a stable oil-based supplement. The mild, precisely controllable ultrasonic treatment ensures that the C60 molecules are kept intact for best results. The ultrasonically blended nano-structured formulation results in…
https://www.hielscher.com/ultrasonic-dispersion-of-c60-into-supplements.htm
Graphene Oxide – Ultrasonic Exfoliation and Dispersion
Graphene oxide is water-soluble, amphiphilic, non-toxic, biodegradable and can be easily dispersed into stable colloids. Ultrasonication is an very efficient, rapid and cost-effective method to synthesize, disperse and functionalize graphene oxide on industrial scale. In downstream processing, ultrasonic dispersers…
https://www.hielscher.com/graphene-oxide-ultrasonic-exfoliation-and-dispersion.htm
Ultrasonic Production of Conductive Inks on Large Scale
Uniformly dispersed nanoparticles such as silver or graphene 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.htm
Ultrasonic Dispersion of Graphene
To incorporate graphene into composites, the graphene must be dispersed/exfoliated as single nano-sheets uniformly into the formulation. The higher the grade of deagglomeration, the better the extraordinary material properties are exploited. Ultrasonic dispersion enables for a superior particle distribution…
https://www.hielscher.com/ultrasonic-dispersion-of-graphene.htm
Ultrasonic Exfoliation of Water-Dispersible Graphene
Mono- and bi-layer graphene nanosheets can be produced rapidly via ultrasonic exfoliation with high throughput and at low cost. Ultrasonically exfoliated graphene can be functionalized with biopolymers in order to obtain water-dispersible graphene. By ultrasonic cavitation, the synthesized graphene…
https://www.hielscher.com/ultrasonic-exfoliation-of-water-dispersible-graphene.htm
Ultrasonic Processing of Metal Melts
Power ultrasound in molten metals and alloys shows various beneficial effects such as structuring, degassing, and improved filtration. Ultrasonic promotes the non-dendritic solidification in liquid and semi-solid metals. Sonication has significant benefits on the microstructural refinement of dendritic grains…
https://www.hielscher.com/ultrasonic-processing-of-metal-melts.htm
Ultrasonically 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…
https://www.hielscher.com/ultrasonically-intensified-fixed-bed-reactors.htm
Ultrasonic Preparation of Reinforced Rubber
Reinforced rubbers show higher tensile strength, elongation, abrasion resistance and better aging stability. Fillers such as carbon black (e.g. CNTs, MWNTs), graphene, or silica must be homogeneously dispersed in the matrix to provide the desired material properties. Power ultrasonics…
https://www.hielscher.com/ultrasonic-preparation-of-reinforced-rubber.htm
Ultrasonic Production of Stable Nanoemulsions
Nanoemulsions - also known as miniemulsions or submicron emulsions - are used in a wide range of applications in chemistry, paints & coatings, cosmetics, pharmaceuticals and food. Ultrasonic systems are known as reliable tools for the production of long-term…
https://www.hielscher.com/ultrasonic-production-of-stable-nanoemulsions.htm
Ultrasonic 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…
https://www.hielscher.com/ultrasonic-dispersing-of-activated-charcoal.htm
Ultrasonic High Speed Batch Mixers
Wetting, hydration, homogenization, grinding, dispersion, emulsification and dissolving are common applications for Hielscher's ultrasonic high speed batch mixers. Ultrasonic batch mixing is carried out at high speed with reliable, reproducible results for outstanding process results at lab, bench-top and…
https://www.hielscher.com/ultrasonic-high-speed-batch-mixers.htm
Green Sonochemical Route to Silver Nanoparticles
Silver nanoparticles (AgNPs) are frequently utilized nanomaterials due to their anti-microbial properties, optical properties and high electrical conductivity. The sonochemical route using kappa carrageenan is a simple, convenient and environmental-friendly synthesis method for the preparation of silver nano particles.…
https://www.hielscher.com/green-sonochemical-route-to-silver-nanoparticles.htm
Ultrasonic Production of Nano-Structured Cellulose
Nanocellulose is a high-performance additive which is successfully used as rheology modifier, reinforcing agent and additive in manifold high-performance materials and applications. The nano-structured fibrils can be very efficiently isolated from any cellulose-containing source by high-power ultrasonic homogenization and…
https://www.hielscher.com/ultrasonic-production-of-nano-structured-cellulose.htm
GDmini2 – Ultrasonic Inline Micro-Reactor
The GDmini2 is an ultrasonic micro-reactor for the indirect, temperature-controlled sonication of liquid media. Applications include: Homogenization, emulsification, particle synthesis, solvent extraction, cell lysis and fragmentation. The GDmini2 is an ultrasonic homogenizer in the shape of a straight glass tube.…
https://www.hielscher.com/gdmini2-ultrasonic-inline-micro-reactor.htm
Ultrasonic Synthesis of Fluorescent Nano Particles
Artifically synthesized fluorescent nano particles have manifold potential applications in the manufacturing of electrooptics, optical data storage, as well as for biochemical, bioanalytical and medical applications. Sonication is an effective and reliable method to synthesize fluorescent nano particles of…
https://www.hielscher.com/ultrasonic-synthesis-of-fluorescent-nano-particles.htm
Sonofragmentation – The Effect of Power Ultrasound on Particle Breakage
Sonofragmentation describes the breakage of particles into nano-sized fragments by high power ultrasound. In contrast to the common ultrasonic deagglomeration and milling - where particles are mainly grinded and separated by inter-particle collision - , sono-fragementation is distinguished by…
https://www.hielscher.com/sonofragmentation-the-effect-of-power-ultrasound-on-particle-breakage.htm
Ultrasonic Treatment of Nanoparticles for Pharmaceuticals
Ultrasound is an innovative technology that is used successfully for sonochemical synthesis, deagglomeration, dispersion, emulsifying, functionalization and activation of particles. Particularly in nanotechnology, the ultrasonication is an essential technique for the synthesis and processing purposes of nano-size materials. Since…
https://www.hielscher.com/ultrasonic-treatment-of-nanoparticles-for-pharmaceuticals.htm
Ultrasonic Homogenizers for Liquid Processing
Hielscher Ultrasonics specializes in the design and manufacturing of high power ultrasonic homogenizers for lab, bench-top and production level. Ultrasonic power is an effective and energy-efficient means to apply high shear and intense stress to liquids, powder/liquid…
https://www.hielscher.com/ultrasonic-homogenizers-for-liquid-processing-3.htm
Ultrasonic Synthesis of Nanodiamonds
Due to its intense cavitational force, power ultrasound is a promising technique to produce micron- and nano-sized diamonds from graphite. Micro- and nano-crystalline diamonds can be synthesized sonicating a suspension of graphite in organic liquid at atmospheric pressure and…
https://www.hielscher.com/ultrasonic-synthesis-of-nanodiamonds.htm
Sonochemical Effects on Sol-Gel Processes
Introduction Ultrafine nano-sized particles and spherical shaped particles, thin film coatings, fibers, porous and dense materials, as well extremely porous aerogels and xerogels are highly potential additives for the development and production of high performance materials. Advanced materials, including…
https://www.hielscher.com/sonochemical-effects-on-sol-gel-processes.htm
Ultrasonic Dispersing of Silica (SiO2)
Silica is used in various industries for its abrasion resistance, electrical insulation and high thermal stability. Ultrasonic dispersing helps to use the potential of silica by improving the dispersion quality. Silica Applications Silica (SiO2) is a multi-functional…
https://www.hielscher.com/size_reduction_silica_01.htm
Ultrasonic Dispersing of Carbon Nanotubes (CNT)
Carbonnanotubes are strong and flexible but very cohesive. They are difficult to disperse into liquids, such as water, ethanol, oil, polymer or epoxy resin. Ultrasound is an effective method to obtain discrete - single-dispersed - carbonnanotubes. Carbonnanotubes (CNT)…
https://www.hielscher.com/nano_03.htm