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Sajjad Haider

King Saud University Saudi Arabia

Dr. Sajjad Haider is a Professor at the Department of Chemical Engineering, King Saud University, Saudi Arabia. He received an MSc in 1999 and an MPhil in 2004 from the Institute of Chemical Sciences, University of Peshawar, KPK, Pakistan, and a Ph.D. in 2009 from the Department of Polymer Science and Engineering, Kyungpook National University, Taegu, South Korea. Prof. Haider's research work focuses on the development of scaffolds for tissue regeneration, biopolymer composites, polymer hydrogels, the fabrication of electrospun nanofibers and metal nanoparticles, and the evaluation of their potential application in biomedicine and the removal of hazardous materials from aqueous media. Prof. Haider's research contributions are widely recognized, with his publications being among the most cited and downloaded in prestigious journals. Prof. Haider has authored 248research papers, including 216 journal articles, five conference articles, three patents, nine edited reference books, and 15 book chapters. Prof. Haider has been ranked among the top 2% of scientists globally for three consecutive years (2021, 2022, and 2024) based on citations. Prof. Haider has played a key role in establishing a fully functional nanotechnology research lab, securing substantial funding from the National Plan for Science and Technology through high-quality research proposals. His work has resulted in outstanding publications and patents, receiving excellent ratings from international evaluators.. He has been invited several times to speak at international workshops and conferences.

8books edited

3chapters authored

Latest work with IntechOpen by Sajjad Haider

This book presents a comprehensive overview of density functional theory (DFT), from its basics to its practical application and implementation. It also discusses the breakthroughs in the field and the complete integration of physical and chemical aspects. It examines both orbital and time-dependent functions along with their variations according to semiquantitative analysis. The book also discusses analytical and computational techniques and principles, considering the classical and quantum approaches. Also covered are important topics such as HOMO (highest occupied molecular orbital), LUMO (lowest unoccupied molecular orbital), MEP (minimum energy paths), KS-DFT (Kohn-Sham density functional theory), UHFD (Unrestricted Hartree-Fock-Dirac), and Gaussian methods.

Density Functional Theory

Density Functional Theory

Edited by Sajjad Haider

Books edited

Hydrolases

Hydrolases

Edited by Sajjad Haider

Energy Storage Battery Systems

Energy Storage Battery Systems

Edited by Sajjad Haider

Transition Metal Compounds

Transition Metal Compounds

Edited by Sajjad Haider

Electrospinning and Electrospraying

Electrospinning and Electrospraying

Edited by Sajjad Haider

Hydrogels

Hydrogels

Edited by Sajjad Haider

Electrospinning

Electrospinning

Edited by Sajjad Haider

Chapters authored

Thermoplastic Nanocomposites and Their Processing Techniques

By Sajjad Haider, Yasin Khan, Waheed A. Almasry and Adnan Haider

Part of the book: Thermoplastic

Electrohydrodynamic Processes and Their Affecting Parameters

By Sajjad Haider, Adnan Haider, Abdulaziz A. Alghyamah, Rawaiz Khan, Waheed A. Almasry and Naeem Khan

Electrohydrodynamic processes such as electrospinning and electrospraying are simple, flexible, and cost-effective. Both processes use electrically charged jet of polymer solution for the fabrication of micro- or nanofibers and micro- or nanoparticle. Both of these electrodynamic techniques have been receiving increasing attention not only in the scientific community but also in industry. These fibers and particles offer several morphological and functional features that are suitable for tissue engineering in biomedical applications. The main apparatus used for both of these processes is almost the same. Both need electric voltage to induce charge on the droplet, which at optimized electric field leads to micro- or nanofibers and micro- or nanoparticles. Rayleigh in 1882, for the first time, theoretically estimated the maximum amount of charge that a liquid droplet could carry to change in a jet. This theory is now known as the “Rayleigh limit.” He predicted that a droplet on reaching Rayleigh limit would move as fine jets of liquid. More than 100 years later, Rayleigh limit theory was confirmed experimentally. Beside electric field there are other operating and solution parameters that need to be optimized before we obtain a desire product.

Part of the book: Electrospinning and Electrospraying

Related collaborators

Cristina Maria Bortun

Shiyong Yang

Institute of Chemistry of the Slovak Academy of Sciences , Slovakia

Jose Roberto Vega-Baudrit

Universidad Nacional , Costa Rica

Angela Podariu

Victor Babeș University of Medicine and Pharmacy Timișoara , Romania

Laura Cristina Rusu

Victor Babeș University of Medicine and Pharmacy Timișoara , Romania

Sergio Madrigal-Carballo

Universidad Nacional , Costa Rica

Yuanze Xu

Fudan University , China

Liliana Nohara

Universidade Estadual Paulista (Unesp) , Brazil

Xiujuan Zhang

Fudan University , China

Lavinia Cosmina Ardelean

Victor Babeș University of Medicine and Pharmacy Timișoara , Romania