Utrasonic topic: "Ultrasonication: Applications and Benefits"
Ultrasonication is the application of intense ultrasound waves into liquids and slurries. The acoustic cavitation generated by intense sonication creates energy-dense conditions such as high pressure and temperature differentials as well as high shear forces and turbulences. Those forces agitate particles, break droplets and disrupt cells causing homogenisation, dispersion, emulsification and extraction effects. Read more about ultrasonication and its multiple applications!
12 pages about this topic are being shown:
Ultrasonic Production of Highly Purified Schizophyllan β-Glucans
Schizophyallan is a fungal β-glucan with immunomodulating properties. For highly active medicinal effects, schizophyllan must have a low molecular weight in order to show improved bioavailability. Ultrasonication has been proven to reduce the molecular weight of schizophyllan. As reliable and…
https://www.hielscher.com/ultrasonic-production-of-highly-purified-schizophyllan-%ce%b2-glucans.htm
Organocatalytic Reactions Promoted by Sonication
In organic chemistry, organocatalysis is a form of catalysis in which the rate of a chemical reaction is increased by an organic catalyst. This "organocatalyst" consists of carbon, hydrogen, sulfur and other nonmetal elements found in organic compounds. The application…
https://www.hielscher.com/organocatalytic-reactions-promoted-by-sonication.htm
Ultrasonically Promoted Michael Addition Reaction
Asymmetric Michael reactions are a type of organocatalytic reactions, which can benefit heavily from sonication. The Michael reaction or Michael addition is widely used for chemical syntheses, where carbon-carbon bonds are formed under mild conditions. Ultrasonication and its sonochemical effects…
https://www.hielscher.com/ultrasonically-promoted-michael-addition-reaction.htm
Sonochemically Improved Diels-Alder Reactions
Diels-Alder reactions are widely used for chemical syntheses, where atomic carbon-carbon bonds must be formed. Ultrasonication and its sonochemical effects are highly efficacious in driving and promoting Diels-Alder reactions resulting in higher yields, significantly reduced reaction time and at the…
https://www.hielscher.com/sonochemically-improved-diels-alder-reactions.htm
Sonochemically Improved Mannich Reactions
Mannich reaction are important carbon–carbon bond forming reactions, which are widely used in industries such as the pharmaceutical production and the synthesis of natural products. Whilst most of one-pot Mannich reactions are very slow, the positive effects of ultrasonication on…
https://www.hielscher.com/sonochemically-improved-mannich-reactions.htm
Synthesis and Functionalization of Zeolites using Sonication
Zeolites including nano-zeolites and zeolite derivatives can be efficiently and reliable synthesized, functionalized and deagglomerated using high-performance ultrasonication. Ultrasonic zeolite synthesis and treatment excels conventional hydrothermal synthesis by efficiency, simplicity, and simple linear scalability to large production. Ultrasonically synthesized zeolites…
https://www.hielscher.com/synthesis-and-functionalization-of-zeolites-using-sonication.htm
Water-Based Graphene Exfoliation
Ultrasonic exfoliation allows to produce few-layer graphene without the use of harsh solvents using pure water only. High-power sonication delaminates graphene sheets within a short treatment. The avoidance of solvents turns graphene exfoliation in a green, sustainable process. Graphene Production…
https://www.hielscher.com/water-based-graphene-exfoliation.htm
Sonoelectrolytic Hydrogen Production from Dilute Sulfuric Acid
Electrolysis of dilute sulfuric acid produces hydrogen gas and oxygen gas. Ultrasonication reduces the diffusion layer thickness at the electrode surface and improves mass transfer during electrolysis. Ultrasonication can increase hydrogen gas production rates in the electrolytic cell, significantly. Two…
https://www.hielscher.com/hydrogen-production-electrolysis.htm
Deep Eutectic Solvents for Highly Efficient Extraction
Deep eutectic solvents (DESs) and natural deep eutectic solvents (NADES) offer advantages as extraction solvents on many levels and are thereby a promising alternative to conventional organic solvents. Deep eutectic solvent work excellent in combination with ultrasonic extraction and give…
https://www.hielscher.com/extraction-with-deep-eutectic-solvents.htm
The Solution to Electrode Surface Fouling
Electrode surface fouling is a serious problem in many electrochemical production processes and in electrochemical sensors. Electrode fouling can affect the performance and energy efficiency of an electrochemical cell. Ultrasonication is an effective means to avoid and remove electrode fouling.…
https://www.hielscher.com/solution-to-electrode-surface-fouling.htm
Ultrasonic Wet-Precipitation of Prussian Blue Nanocubes
Prussian Blue or iron hexacyanoferrate is a nano-structured metal organic framework (MOF), that is used in sodium‐ion battery manufacturing, biomedicine, inks and electronics. Ultrasonic wet-chemical synthesis is efficient, reliable and rapid pathway to produce Prussian Blue nanocubes and Prussian blue…
https://www.hielscher.com/ultrasonic-wet-precipitation-of-prussian-blue-nanocubes.htm
Highly Efficient De-Aeration of Liquids using Ultrasonics
Whilst degassing or outgassing is often an extremely time-consuming process step, ultrasonication can accelerate the coalescence of gas bubbles and their rise significantly. Ultrasonic outgassing can be used in batch and inline setups and can be also combined with conventional…
https://www.hielscher.com/highly-efficient-de-aeration-of-liquids-using-ultrasonics.htm