King Saud University

Abdelrahman Osama Ezzat

Ayman Mohamady Atta

Ali Aldalbahi

Hamad Abdulla Al-Lohedan

Hamad A Al-lohedan

Ayman M Atta

Mahmood M S Abdullah

Ayman Mohamamdy Atta

Mohamed Hasan Wahby

Hissah Hamad Al-Tilasi

Wasmiah Mohammed Abdu Dahan

Hamad Abdullha Al-Lohedan

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

The modification of sand with superhydrophobic silica/wax nanoparticles may provide for water storage, applicable, for example, in desert environments. In particular, highly thermal stable superhydrophobic coats for sand are made of nanoparticles composed of superhydrophobic silica capped with paraffin wax. Superhydrophobic sand modified by such nanoparticles addresses issues of water storage in desert environments, capitalizing on sand resource utilization. Superhydrophobic sand, as modified, has excellent water repellency and great water-holding capacity. The superhydrophobic sand modified with superhydrophobic silica/wax nanoparticles can be applied for the desert water storage for agriculture and planting.

Modification of sand with superhydrophobic silica/wax nanoparticles

A method of synthesizing bimetallic oxide nanocomposites includes the steps of: providing a first metal salt solution; adding an oxidizing agent to the first metal salt solution while degassing the solution with an inert gas; heating the first metal salt solution; adding a second metal salt solution to the heated first metal salt solution to form a reaction mixture; adding a solution comprising a poly (ionic liquid) into the reaction mixture; adding a first base into the reaction mixture; adding a second base while stirring and maintaining a temperature ranging from about 40&#xb0; C. to about 65&#xb0; C. to provide a solution including a bimetallic oxide nanocomposite precipitate. The first metallic salt solution can include FeCldissolved in water. The second metallic salt solution can include CuCldissolved in water. The bimetallic oxide nanocomposites can be combined with epoxy resin to coat a steel stubstrate.

Synthesis of bimetallic oxide nanocomposites using poly (ionic liquid)

Synthesis of modified chitosan particles for oral insulin delivery includes amidation of chitosan with a fatty acid, a modified fatty acid, and/or an amino acid. The amidated chitosan can be grafted with N-isopropylacrylamide (NIPAm) and cross-linked to provide the modified chitosan particles.

Synthesis of modified chitosan particles for oral insulin delivery

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.

Synthesis of zinc oxide nanocomposites using poly (ionic liquid)

A method of synthesizing silver nanoparticles from waste film includes providing waste film including a silver halide salt and gelatin, mixing the waste film with an alkaline solution to form a mixture, heating the mixture, and subjecting the mixture to ultracentrifugation to isolate silver nanoparticles in the mixture. The film can include waste radiographic or photographic film pieces. Glucose and/or polyvinylpyrrolidone (PVP) may be added to the mixture. The nanoparticles can have an average particle size of about 2 nm to about 10 nm. The silver nanoparticles can be resistant to synthetic stomach fluid and showed high antimicrobial activity.

Growing community of inventors

Riyadh, Saudi Arabia

Abdelrahman Osama Ezzat