King Saud University

King Abdulaziz University

Ayman Mohamady Atta

Abdelrahman Osama Ezzat

Ali Aldalbahi

Hamad A Al-lohedan

Hamad Abdulla Al-Lohedan

Ali Issa Ismail

Mohamed Hassan El-Newehy

Mohamed Elsayed EL-Hefnawy

Mahmood M S Abdullah

Hamad Zaid Alkhathlan

Merajuddin Khan

Mohamed E El-Hefnawy

Hissah Hamad Al-Tilasi

Wasmiah Mohammed Abdu Dahan

Abdulrahman O Ezzat

Amro Khalil Fakhry Dyab

A synthesized gel including an extract selected from the group consisting of Gum Arabic (GA) extract, myrhh (MR) extract, a polymer or monomer selected from the group consisting of NIPAm and acidic monomers; APS initiator; MBA; and insulin. A method of treating insulin dependent diabetes includes administering to a patient in need thereof a therapeutically effective amount of the insulin loaded into the gel.

Gels for insulin delivery

Modified chemical structures of cardanol extracted from cashew nut shell oil, and the use of the same to prepare imidazolium ionic liquids (IILs). The IILs can be used to prepare different types of silica, magnetite and calcium carbonate nanoparticles (NPs) as multifunctional oilfield chemicals for use in various oil spill collection, de-emulsification, viscosity improvement, asphaltene dispersant, and enhanced oil recovery applications.

Imidazolium ionic liquids made using cardanol extracted from cashew nutshell oil to enhance crude oil recovery in oilfields

Provided herein are amphiphilic asphaltene ionic liquids and methods of making and using the amphiphilic asphaltene ionic liquids, e.g. as demulsifiers for petroleum crude oil-water emulsions.

Amphiphilic asphaltene ionic liquids as demulsifiers for heavy petroleum crude oil-water emulsions

Protic asphaltene ionic liquids comprising chemically modified asphaltenes are provided. The asphaltenes are modified via carboxylation and formation of alkyl and/or aryl imidazole derivatives. Chemical modification of the asphaltenes results in their stabilization e.g. in heavy petroleum crude, and prevents their aggregation and precipitation.

Protic asphaltene ionic liquids as asphaltene stabilizer

Hydrophobic nanoparticle compositions include silica nanoparticles capped with asphaltene succinimide alkoxy silane (ASAS). The nanoparticles can have a particle size ranging from about 20 nm to about 10000 &#x3bc;m. The nanoparticle compositions can be used as a coating for raw sand to provide a super-hydrophobic sand. The nanoparticle compositions can be used as a coating for a polyurethane (PU) sponge to provide a super-hydrophobic sponge. The super-hydrophobic sand and/or super-hydrophobic sponge can be used to collect crude oil deposited in aquatic environments as a result of petroleum crude oil spills.

Hydrophobic nanoparticle compositions for crude oil collection

The biosynthesized magnetic metal nanoparticles for oil spill remediation are magnetic nanoparticles capped with an extract of. The magnetic nanoparticles are formed by co-precipitation of ferric chloride hexahydrate and ferrous chloride tetrahydrate in an ethanol solution of the extract with the dropwise addition of ammonium hydroxide to raise the pH to between 8 and 11. The extract may be an extract of the aerial parts ofin a low polar extraction solvent, such as an n-alkane solvent or mono-di-, or trichloromethane. The extract is hydrophobic, improving dispersion of the magnetic nanoparticles in oil spills in seawater, resulting in 90% removal of oil for a 1:10 ratio of nanoparticles:oil by weight.

Biosynthesized magnetic metal nanoparticles for oil spill remediation

The method of synthesizing zinc oxide polymer nanocomposite comprises: dissolving equal molar ratios of a sulfonic acid acrylic monomer and a co-monomer with a cross linking agent to form a solution; dispersing the zinc-oxide nanoparticles into the solution; polymerizing the sulfonic acid acrylic monomer with the co-monomer by adding a free radical initiator followed by heating up the solution to a temperature up to 50&#xb0; C.; raising the temperature up to 60&#xb0; C. until a zinc oxide polymer nanocomposite is formed; and curing the nanocomposite by heating to at least 105&#xb0; C. for about 24 hours to form the zinc oxide polymer nanocomposite, wherein the ionic liquid monomer is 2-ccrylamido-2-methyl-1-propanesulfonic acid or a salt thereof and wherein the co-monomer is selected from the group consisting of vinyl pyrrolidone, acrylic acid and N-isopropyl acrylamide monomers.

Growing community of inventors

Riyadh, Saudi Arabia

Ayman Mohamady Atta