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Dr. Sang Eun Hong
Department of Chemistry, Hannam University, Daejeon 305-811, Korea

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0 Sensors
0 Supercapacitors
0 bioadhesives
0 bionanomaterials

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Journal article
Published: 07 April 2021 in International Journal of Biological Macromolecules
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A green and scalable approach for the preparation of few-layered graphene utilizing the biowaste of potato peels has been developed. The potato peels have been dried and carbonized to obtain a new graphite structure that has been exfoliated in N-methylene phosphonic acid chitosan (MPC). The exfoliation process assisted the formation of graphene sheets with a high size diameter and quality of 50% based on the weight of graphite structure. The graphene sheets were green decorated with silver nanoparticles using microwave power to obtain new nanocomposites. The mass ratio between the graphite and silver nitrate was optimized and observed to change the morphology and size diameter of silver nanoparticles. The as-prepared MPC structure, graphene, and silver decorated graphene nanocomposites were characterized using 1HNMR, FTIR, XRD, UV/Vis spectrophotometer, SEM, and TEM besides tested as antimicrobial agents. The bacterial performance was also controlled by changing the number of AgNPs distributed on graphene sheets based on the mass ratios of graphite/AgNO3. The inhibition diameter of silver decorated graphene was considerably increased to 24.8, and 20.1 mm as in the case of MPC-GRP-Ag30 composite compared to the pure graphene (11.2, 13.5 mm) for E. coli and S. aureus, consecutively proposing that the blade edge of graphene sheets can destroy the bacteria membrane and release silver cations promptly that are directed for the interaction with the cytoplasmic parts of the bacteria cell. Such findings offer green and biocompatible antibacterial agents based on the graphene derived from the biowaste products.

ACS Style

Emad S. Goda; Mahmoud H. Abu Elella; Muhammad Sohail; Bal Sydulu Singu; Bidhan Pandit; A.M. El Shafey; Abdelaziz M. Aboraia; Heba Gamal; Sang Eun Hong; Kuk Ro Yoon. N-methylene phosphonic acid chitosan/graphene sheets decorated with silver nanoparticles as green antimicrobial agents. International Journal of Biological Macromolecules 2021, 182, 680 -688.

AMA Style

Emad S. Goda, Mahmoud H. Abu Elella, Muhammad Sohail, Bal Sydulu Singu, Bidhan Pandit, A.M. El Shafey, Abdelaziz M. Aboraia, Heba Gamal, Sang Eun Hong, Kuk Ro Yoon. N-methylene phosphonic acid chitosan/graphene sheets decorated with silver nanoparticles as green antimicrobial agents. International Journal of Biological Macromolecules. 2021; 182 ():680-688.

Chicago/Turabian Style

Emad S. Goda; Mahmoud H. Abu Elella; Muhammad Sohail; Bal Sydulu Singu; Bidhan Pandit; A.M. El Shafey; Abdelaziz M. Aboraia; Heba Gamal; Sang Eun Hong; Kuk Ro Yoon. 2021. "N-methylene phosphonic acid chitosan/graphene sheets decorated with silver nanoparticles as green antimicrobial agents." International Journal of Biological Macromolecules 182, no. : 680-688.

Review
Published: 05 November 2020 in Journal of Environmental Chemical Engineering
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Xanthan gum (XG), a naturally occurring microbial exopolysaccharide, is of a great commercial significance. It has demonstrated a significant potential in targeted applications such as advanced drug delivery, wastewater treatment, protein delivery, tissue engineering, and food packaging due to its outstanding physicochemical properties, biodegradability, and non-toxicity. However, certain limitations such as low surface area, poor mechanical performance, thermal stability, and bacterial growth can hinder its uses in specific applications. As a result, there have been various endeavors to modify xanthan gum by means of diverse modification approaches for enhancing its physicochemical properties, and therefore enabling its competence for the needs of drug delivery, tissue engineering, oil recovery, and environmental applications. To the best of our knowledge, this is the first review for providing a comprehensive picture of the advanced chemical treatment, grafting procedures, hydrogel synthesis, bio-nanocomposites containing metal, and metal oxide nanoparticles, graphene, and inorganic clays, along with the fabulous properties obtained for the xanthan derived materials. Furthermore, it exhibits the recent applications for these materials in industrial, biomedical engineering, wastewater treatment, and agricultural fields. In the future, the presented data will be considered a fabulous base for designing the next generation materials to be applied in further advanced uses.

ACS Style

Mahmoud H. Abu Elella; Emad S. Goda; Mohamed A. Gab-Allah; Sang Eun Hong; Bidhan Pandit; Seungho Lee; Heba Gamal; Aafaq Ur Rehman; Kuk Ro Yoon. Xanthan gum-derived materials for applications in environment and eco-friendly materials: A review. Journal of Environmental Chemical Engineering 2020, 9, 104702 .

AMA Style

Mahmoud H. Abu Elella, Emad S. Goda, Mohamed A. Gab-Allah, Sang Eun Hong, Bidhan Pandit, Seungho Lee, Heba Gamal, Aafaq Ur Rehman, Kuk Ro Yoon. Xanthan gum-derived materials for applications in environment and eco-friendly materials: A review. Journal of Environmental Chemical Engineering. 2020; 9 (1):104702.

Chicago/Turabian Style

Mahmoud H. Abu Elella; Emad S. Goda; Mohamed A. Gab-Allah; Sang Eun Hong; Bidhan Pandit; Seungho Lee; Heba Gamal; Aafaq Ur Rehman; Kuk Ro Yoon. 2020. "Xanthan gum-derived materials for applications in environment and eco-friendly materials: A review." Journal of Environmental Chemical Engineering 9, no. 1: 104702.