Utrasonic 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!
12 pages about this topic are being shown:
Ultrasonic Deacetylation of Chitin to Chitosan
Chitosan is a chitin-derived biopolymer which has many applications in pharma, food, agriculture and industry. Ultrasonic deacetylation of chitin to chitosan intensifies the treatment significantly - leading to an efficient and fast process with a high chitosan yield of…
https://www.hielscher.com/ultrasonic-deacetylation-of-chitin-to-chitosan.htm
Ultrasonic Deacetylation of Chitin to Chitosan
Chitosan is a chitin-derived biopolymer which has many applications in pharma, food, agriculture and industry. Ultrasonic deacetylation of chitin to chitosan intensifies the treatment significantly - leading to an efficient and fast process with a high chitosan yield of…
https://www.hielscher.com/ultrasonic-deacetylation-of-chitin-to-chitosan.htm
Ultrasonic Mixing of Asphalt Rejuvenators
Asphalt rehabilitators and rejuvenators enable to recycle existing asphalt pavements by applying rejuvenating agents to the construction material. Ultrasonic dispersers are a powerful technique to mix nano-particles and nano-droplets into asphalt and bitumen emulsions. Power ultrasound is used to…
https://www.hielscher.com/ultrasonic-mixing-of-asphalt-rejuvenators.htm
Ultrasonically Polyhydroxylated C60 (Fullerenol)
Water-soluble polyhydroxylated C60 fullerene, called fullerenol or fullerol, is a strong free radical scavenger and is therefore used as an antioxidant in supplements and pharmaceuticals. Ultrasonic hydroxylation is a rapid and simple one-step reaction, which is used to produce…
https://www.hielscher.com/ultrasonic-polyhydroxylated-c60-fullerenol.htm
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. Ultrasonic exfoliation and dispersion is an very efficient, rapid and cost-effective method to synthesize, disperse and functionalize graphene oxide on industrial scale. In downstream…
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