Mohamed Hassan Abdelwahab Elnewehy

Main Area of Expertise:

Research; Preparation of polymers, fabrication of nanofibers and carbon fibers for biomedical applications, water treatment and energy applications.

Keywords; Polymers, electrospinning technique; nanofibers; carbon fibers; drug delivery; controlled release technology; water treatment; energy.

1) CURRENT POSITIONS

• PROFESSOR; Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia. 29/102018 –Till now.
• VICE EDITOR-IN-CHIEF; Arabian Journal of Chemistry. Publisher; Scientific Scholar. https://arabjchem.org/editorial-board/, 06/2024 – Till now.
• EXECUTIVE SUPERVISOR; Research and Scientific Publishing Unit, College of Science, King Saud University, Riyadh, Saudi Arabia. 29/08/2024 – Till now.
• EXECUTIVE SUPERVISOR; The Scientific Forum for The Students of King Saud University for Research, Innovation and Talent. Deanship of Student Affairs, King Saud   University, Riyadh, Saudi Arabia. 2021 – Till now.
• CONSULTANT; DEAN; College of Science, King Saud University, Riyadh, Saudi Arabia. 2022-Till now.

2) UNIVERSITY SERVICE:

• Member; Committee for The Preparation of Standard (7) – Scientific Research and Innovation, Self-Study Report for Institutional Academic Accreditation Renewal. 26 FEB 2023.
• Member; The Higher Committee and the Scientific Committee of The International Conference and Exhibition for Science (ICES2023). College of Science, King Saud University, Riyadh 11451, Saudi Arabia. (College of Science, King Saud University, February 6-8, 2023).
• Member; Committee for Graduate Studies and Scientific Research. Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia. (28 OCT 2018 – Till now).
• Member; Executive Committee for The Establishment of An Inter-Disciplinary Program at The College of Science for The Bachelor's Degree in Applied Chemistry. Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia. (MAR 2018 – Till now)
• Member; Committee for Study Plan and Learning Resources. Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia. (SEP 2017 – Till now)
• Member; Participation in academic program development committees (Industrial Chemistry Bachelor's Program Development Committee, Department of Chemistry, College of Science, King Saud University).

3) TEACHING:

• Teaching chemistry courses for undergraduate and postgraduate students.
• Supervising postgraduate students (Master's and Ph.D. degrees) inside and outside the Kingdom of Saudi Arabia.
• Participation in Committees for reviewing Thesis for (Master's and Ph.D. degrees) inside and outside the Kingdom of Saudi Arabia.
• Serving as reviewer for academic programs at Saudi universities (4 programs).

4) RESEARCH AND SCIENTIFIC PUBLICATION:

• LISTED IN TOP 2 % OF THE MOST-CITED SCIENTISTS in various disciplines (Polymers and Materials), STANFORD UNIVERSITY NAMES WORLD’S TOP 2% SCIENTISTS (2020-2025).
• h-index 58, with more than 10,000 citations.
• Participating in publication of (more than 290 papers, 4 patents, 2 books and 5 book chapter) in the field of polymer science and nanoscience and their applications, particularly in environmental applications, water treatment, biomedical applications, and energy, in specialized international journals with high impact factors.
• Participating in joint projects with international, regional, and Saudi universities (26 projects).
• Serving as reviewer for promotion of faculty members inside and outside the Kingdom of Saudi Arabia (12 applications).
• Serving as reviewer for international journals (more than 60 journals) and books.
• Serving as reviewer for projects at Saudi and European universities (12 projects).
• Promoting local, regional, and international research cooperation with the aim of transferring global technologies to King Saud University.
• Participation in international conferences (35 conferences), training courses (4 specialized training courses), workshops (18 workshops), skills development courses (40 courses), public lectures (36 lectures), and membership in conference and workshop committees (11 participations).

5) RESEARCH INTERESTS:

• Specialization: Polymer Chemistry and Nanomaterials.
• Research Area: Design, preparation, and characterization of monomers and polymers, grafting, as well as the fabrication of polymer nanofibers and carbon nanofibers using electrospinning technology and their various applications in the fields of medicine, water treatment, and energy.

Preparation Methods

1. Preparation and Characterization of monomers and polymers for biomedical applications and water treatment.
2. Grafting of some monomers onto biopolymers and their derivatives, such as starch and carboxymethyl starch as well as surface modification of biopolymers, such as chitosan for biomedical applications.
3. Electrospinning Technology.

           Polymer nanofibers with diameters ranging from microns to nanometers are produced using electrospinning technology.

           These fibers have numerous advantages that make them widely used in the medical, water treatment, and energy fields.

• Preparation of biohybrid nanofibers using extracts from plant and bacterial for biomedical and water treatment applications.
• Preparation of carbon nanofibers and their surface modification for water treatment.

Fields of Applications

1. Biomedical Applications

• Drug delivery and Controlled Release Systems

            Various drug delivery systems can be prepared from some polymers or modified biopolymers.

            Controlled drug release technology can be used and increases drug stability and half-life, reduces side effects, and improves patient response to these medications.

            Drug delivery systems, tissue engineering, and regeneration can also be developed using green electrospinning technology without the use of organic solvents. This is a safe and

            environmentally friendly method.

• Antimicrobial Polymers

            Modified and grafted biopolymers, as well as modified nanofibers, are being used to develop new antimicrobial materials that can be used in various biomedical fields and in

             biological treatment of water from microbes.

2. Environmental Applications (Water Treatment):

             Modified polymers, as well as polymer nanofibers and surface modified carbon fibers, are being used in water treatment to remove heavy metals, dyes, and antibiotics. They are

             also used in biological water treatment using antimicrobials.

3. Energy:

             In the energy field, electrospinning technology can be used to produce nanometer-scale fibers from polymers and metal oxides.

             Moreover, nanofibers can be converted into carbon fibers for energy applications as anodes in fuel cells.