Seham Soliman Alterary

Title: Seham Soliman Alterary: Innovator in Toner and Nanoparticle Synthesis

Introduction

Seham Soliman Alterary is a prominent inventor based in Riyadh, Saudi Arabia. She has made significant contributions to the field of materials science, particularly in the development of innovative toners and methods for synthesizing metal nanoparticles. With a total of 2 patents, her work showcases her dedication to advancing technology and sustainability.

Latest Patents

Seham's latest patents include a toner and method of formation using fly ash-rich carbon. This invention discloses a toner based on fly-ash rich carbon and outlines a method of producing it. The process involves preparing a latex and a pigment that includes fly ash, which has been ground to nanoparticle size. The latex, pigment, and polyethylene wax are combined through an emulsion aggregation process. The latex is created by mixing ammonium bicarbonate, sodium dodecylbenzene sulfonate, styrene, acrylic acid, and methyl methacrylate. The emulsion aggregation process includes several steps, such as dispersing a mixture of polyethylene wax, pigment, and latex in water, adding zinc oxide and nitric acid, and incorporating Ethylenediaminetetraacetic acid (EDTA). The mixture is then neutralized with NaOH solution, cooled, centrifuged, washed, and dried to achieve a finished toner that includes fly ash pigment, polyethylene wax, poly(styrene-methyl methacrylate-acrylic acid) latex, zinc oxide, and a chelating agent.

Another notable patent is the synthesis of metal oxide nanoparticles using an extract. This method involves combining a metallic nitrate with an extract to form metal nanoparticles. Specifically, it includes adding an aqueous solution of silver nitrate (AgNO3) to the extract to create silver nanoparticles. Additionally, the method involves dissolving zinc nitrate hexahydrate (Zn(NO3)2·6H2O) in an extract to provide a zinc nitrate extract solution, stirring it, and adding an aqueous solution of sodium hydroxide (NaOH) to form zinc oxide nanoparticles.

Career Highlights

Seham is affiliated with King Saud University, where she continues to contribute to research and innovation in her field. Her work not only enhances the understanding of materials science but also promotes the use of sustainable resources in technology.

Collaborations