Kyung Hee University · Materials Science
Professor Ajahar Khan's research lab specializes in the development of advanced functional materials, particularly focusing on sustainable and biocompatible nanomaterials for biomedical and smart device applications. The lab explores the synthesis and application of carbon-based nanomaterials—such as carbon dots, carbon nanotubes, and conductive polymers—integrated into biopolymer matrices to create multifunctional films and actuators. Key research directions include enhancing mechanical, electrical, and antimicrobial properties for use in food packaging, tissue engineering, and soft robotics. The lab also emphasizes environmentally friendly fabrication techniques and surface modification strategies to improve dispersion and performance of nanomaterials.
Figures are computed from collected data and may differ slightly.
Nitrogen, phosphorus-doped green-tea-derived carbon dots (NP-CDs) incorporated chitosan/starch (Chi/St) based multifunctional nanocomposite films were prepared. FE-SEM images verified a homogeneous distribution of CDs with minimum aggregation in the fabricated films. Incorporating NP-CDs led to enhanced UV-light blocking (93.1% of UV-A and ∼99.7% of UV-B) without significantly affecting the films' water transparency and water vapor permeability. Besides, incorporating NP-CDs into the Chi/St film
Currently, a straightforward fabrication technique for the development of soft actuators to explore their potential in robotic applications using environmentally compatible raw materials represents an important challenge. A conventional conducting polymer, such as polypyrrole (PPy), shows promising conductivity for such applications. This study presents the synthesis of PPy/polyvinyl alcohol (PPy/PVA)-based ion exchange polymer films containing PEDOT:PSS/SWNT/IL electrodes that undergo conformat
Abstract Biopolymers are considered as a favorable group of substances with a broad array of applications, of which biomedical field stands out. The interesting features of biopolymers such as low‐cost, non‐cytotoxicity, hydrophilicity, biodegradation and biocompatibility make them promising and excellent feedstock to be used in implantable devices. The bounteous reactive functional groups in the backbone structure of polysaccharides and its derivatives could be utilized to develop hydrogels, na
Carbon nanotubes (CNTs) have drawn great consideration for their numerous promising applications due to their unique electronic, mechanical, structural, and adsorptive properties. However, the preparation of effective dispersions of CNTs severely holds back the utilization, extension, and application of CNTs. To conquer these limitations and expand the scope of their application, proper surface modification of CNTs has fascinated great consideration over the past few decades and discovered a var
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