What are Organosilanes used for?
Organosilanes are widely used in the surface modification of finely dispersed organic and inorganic substances to produce materials used for liquid, gas, and affine chromatography; ion exchange technologies; and enzyme immobilization.
What does Organosilane mean?
organosilane (plural organosilanes) (organic chemistry) Any organic derivative of a silane containing at least one carbon to silicon bond.
Does the flu vaccine contain adjuvant?
Adjuvanted quadrivalent flu vaccine is approved for people 65 years and older. It is manufactured using an egg-based process (like most flu vaccines), and includes an adjuvant called MF59. An adjuvant is an ingredient added to a vaccine that helps create a stronger immune response to vaccination.
Are Organosilanes toxic?
Most attention has focused on organosilanes, compounds that do not have the toxicity associated with organotin reagents. Initially, the outlook was not promising because simple organosilanes are poor hydrogen-atom transfers when reacting with alkyl radicals and do not support chain reactions under normal conditions.
Are surfactants toxic to bees?
Organosilicone surfactants are good stand alone pesticides, toxic to bees, and are also present in drug and personal care products, particularly shampoos, and thus represent an important component of the chemical landscape to which pollinators and humans are exposed.
Are adjuvants a type of surfactant?
Examples of adjuvants are surfactants, spreader stickers, crop oils, anti-foaming materials, buffering agents, and compatibility agents. Surfactants are adjuvants that facilitate and accentuate the emulsifying, dispersing, spreading, wetting, or other surface modifying properties of liquids.
What are organosilicon compounds?
Organosilicon compounds are organometallic compounds containing carbon – silicon bonds. Organosilicon chemistry is the corresponding science of their preparation and properties. Most organosilicon compounds are similar to the ordinary organic compounds, being colourless, flammable, hydrophobic, and stable to air.
What is a surfactant?
The word “surfactant” is a blend of surface-active agent, coined c. 1950. Agents that increase surface tension are “surface active” in the literal sense but are not called surfactants as their effect is opposite to the common meaning.
What is the first organosilicone adjuvant?
As a result, in 1985, ‚Silwet’︁ L-77 was the first organosilicone adjuvant to be commercialised, and various other products have subsequently been introduced. The chemistry and synthesis of these organosilicones have been detailed.
Do organosilicones affect the activity of protectant agrochemicals?
Progressing to spray application, consideration is given to the effects of organosilicones on atomisation and impaction (wetting, adhesion/reflection, spreading, retention/run-off), and the resultant influences on the activity of protectant agrochemicals.