King Fahd University of Petroleum and Minerals

Mohammed Nasiruzzaman Shaikh

Zain Hassan Yamani

Md Abdul Aziz

Wael Mahfoz

Fatai Olawale Bakare

Aasif Helal

Abiola Azeez Jimoh

Monodisperse carboxylate functionalized gold nanoparticles comprising a capping agent layer of pamoic acid and colloidal suspensions thereof are disclosed. These gold nanoparticles have an average particle size of greater than 15 nm or less than 8 nm and demonstrate significant fluorescent properties. In addition, a method for the size controlled preparation of these monodisperse carboxylate functionalized gold nanoparticles wherein pamoic acid acts as both a reducing and capping agent and wherein the size of the particles can be controlled by the pH of the process is disclosed. In addition, a method for the size controlled preparation of these monodisperse carboxylate functionalized gold nanoparticles utilizing seed mediated growth is disclosed.

Colloidal suspension of gold nanoparticles

A method for manufacturing a palladium coated doped metal oxide conducting electrode including immersing a metal oxide conducting electrode into an aqueous solution having a palladium precursor salt to form the metal oxide conducting electrode having at least one surface coated with palladium precursor. To form a layer of palladium nanoparticles on the metal oxide conducting electrode the palladium precursor on the metal oxide conducting is reduced with a borohydride compound. The palladium nanoparticles on the metal oxide conducting electrode have an average diameter of 8 nm to 22 nm and are present on the surface of the metal oxide conducting electrode at a density from 1.5&#xd7;10Pd&#xb7;nmto 3.5&#xd7;10Pd&#xb7;nm.

Aqueous solution method for manufacturing palladium doped electrode

Method for making a Pd-doped zinc oxide conducting electrode

Method for size controlled preparation of functionalized gold nanoparticles

Gold nanoparticles functionalized with thiolated, bidentate Schiff base ligands. The Schiff base ligands form a ligand monolayer surrounding and binding to the surface of a gold nanoparticle core through Au&#x2014;S linkages. The functionalized gold nanoparticle composites have a spherical shape, an average diameter of 7-15 nm and a narrow particle size distribution. Methods of assessing these functionalized gold nanoparticle composites as fluorescent probes in Fe(III) chemosensing applications, methods of preparing the functionalized gold nanoparticle composites and methods of detecting Fe(III) ions with the same are also provided.

Ferric ion detection method

Monodispersed carboxylate functionalized gold nanoparticles and their size controlled preparation using pamoic acid as a reducing and capping reagent

Method for preparing a gallium-doped zinc oxide electrode decorated with densely gathered palladium nanoparticles

Functionalized gold nanoparticles and methods thereof

A functionalized nanomaterial having an average particles size of less than 10 nm comprising an iron oxide nanoparticle core and a bis(diarylphosphinomethyl) dopamine based ligand layer anchored to the iron oxide nanoparticle core is disclosed. In addition, a catalyst composition for use in a variety of chemical transformations wherein the bisphosphine groups of the functionalized nanomaterial chelate a catalytic metal is disclosed. In addition, a method for producing the functionalized nanomaterial and a method for the hydroformylation of olefins to aldehydes employing the functionalized nanomaterial with high conversion percentage and high selectivity are disclosed.

Magnetic catalyst composition for hydroformylation of olefins

Method for hydroformylating an olefin

Surface bonded Rh-bis(diarylphosphine) on magnetic nanoparticles as a recyclable catalyst for hydroformylation of olefins

Growing community of inventors

Dhahran, Saudi Arabia

Mohammed Nasiruzzaman Shaikh