Nawal Ahmad Madkhali

Title: Nawal Ahmad Madkhali: Innovator in Radiation Shielding Materials

Introduction

Nawal Ahmad Madkhali is a prominent inventor based in Riyadh, Saudi Arabia. He has made significant contributions to the field of materials science, particularly in the development of advanced radiation shielding materials. With a total of 2 patents, his work focuses on innovative solutions for protecting against gamma radiation.

Latest Patents

One of his latest patents is titled "Gamma radiation shielding materials incorporating neodymium-doped zirconia nanoparticles and methods for preparation thereof." This invention presents a radiation shielding material that includes neodymium-doped zirconia nanoparticles within a matrix. The nanoparticles possess a tetragonal crystal structure and an average size ranging from about 25 nm to about 35 nm. The neodymium content in these nanoparticles is between approximately 1.5 mol % to about 3 mol % based on the total molar content of the zirconia nanoparticles. The synthesis method involves controlled metamorphosis of zirconia from monoclinic to tetragonal phase, resulting in a multifunctional shielding material characterized by durability and high radiation absorption efficiency.

Another notable patent by Madkhali is for the "Synthesis of reduced graphene oxide nanoparticles." This process includes several steps, such as mixing soot with an acid to create a solution, gradually adding a first oxidant to oxidize the carbon source, and stirring the suspension while maintaining a specific temperature. The method culminates in the isolation of reduced graphene oxide nanoparticles through centrifugation, utilizing an acid mixture and oxidants like potassium permanganate or hydrogen peroxide.

Career Highlights

Nawal Ahmad Madkhali has worked at esteemed institutions such as King Saud University and Imam Mohammad Ibn Saud Islamic University. His experience in these organizations has allowed him to contribute to significant research and development projects in the field of materials science.

Collaborations

Throughout his career, Madkhali has collaborated with notable colleagues, including Manal Ahmed Gasmelseed Awad and Awatif Ahmed Hendi. These collaborations have fostered a productive environment for innovation and research.

Conclusion

Nawal Ahmad Madkhali's contributions to the field of radiation shielding materials and nanoparticle synthesis highlight his role as an influential inventor. His innovative patents and collaborations reflect his commitment to advancing materials science and technology.