Ultrasonic topic: "Ultrasonic Nanomaterial Processing"
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!
Found 57 hits. Showing results 37 - 48.
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 can…
https://www.hielscher.com/ultrasonic-exfoliation-of-water-dispersible-graphene.htm
Ultrasonic Refinement of Metal Melts
Power ultrasound in molten metals and alloys shows various beneficial effects such as structuring, degassing, and improved filtration. Ultrasonication promotes the non-dendritic solidification in liquid and semi-solid metals. Sonication has significant benefits on the microstructural refinement of dendritic grains and…
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 the…
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 gives…
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. Ultrasonicators are known as a highly efficient and reliable technique for the production of…
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 gives…
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 full…
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. κ-carrageenan…
https://www.hielscher.com/green-sonochemical-route-to-silver-nanoparticles.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
Artificially 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 high…
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 the…
https://www.hielscher.com/sonofragmentation-the-effect-of-power-ultrasound-on-particle-breakage.htm
Ultrasonic Treatment of Nanoparticles for Pharmaceuticals
Probe-type sonicators play a crucial role in pharmaceutical research and manufacturing by providing a powerful and controlled means of achieving particle size reduction, cell disruption, and homogenization. Sonicators utilize ultrasonic waves to generate cavitation, resulting in the formation and collapse…
https://www.hielscher.com/ultrasonic-treatment-of-nanoparticles-for-pharmaceuticals.htm