Polymer hosted metallic nanostructures with diverse applications have become a prominent area of materials science, engineering and technology. In this study nanocellulose (NC) was synthesized from oil palm empty fruit bunches biomass via alkaline treatment and acid hydrolysis and characterized. The obtained NC was used as a host polymer for the synthesis of zinc oxide (ZnO) nanostructures through in-situ solution casting method. Alkaline treatment and acid hydrolysis increased the percentage crystalline index from 35.7% to 43.3% and 53.3% respectively. X-ray diffraction studies pointed to cellulose I, with a monoclinic structure. Zinc oxide/cellulose nanocomposite displayed more photocatalytic activity than pure ZnO nanostructures upon degradation of methylene blue, and also improved antibacterial activity against Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli.
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http://dx.doi.org/10.1016/j.carbpol.2017.02.020 | DOI Listing |
Unlabelled: is a high-priority organism for the development of new antibacterial treatments. We found that the antimalarial medication mefloquine (MFQ) permeabilized the bacterial cell membrane of , decreased membrane fluidity, and caused physical injury to the membrane. MFQ also maintained activity across different pH conditions (PH range 5-8).
View Article and Find Full Text PDFAs natural furocoumarins, psoralen and its isomer isopsoralen are widely distributed in various fruits including L., vegetables including celery, and medicinal herbs including L. Although psoralen and isopsoralen have been used as dietary supplements because of their bioactivities such as antibacterial and anti-inflammatory properties; however, the potential mechanisms underlying the antioxidant activities of these two furocoumarins still need to be explored.
View Article and Find Full Text PDFThe increasing demand for sustainable food packaging has driven the development of films based on biopolymers. However, enhancing their functional properties remains a challenge. In the current study, potato starch-pectin (PSP) composite films were fabricated and enriched with juniper berry essential oil (JBEO) to improve their physicochemical properties.
View Article and Find Full Text PDFJ Int Soc Prev Community Dent
December 2024
College of Dentistry, Mosul University, Mosul, Iraq.
Background And Aim: In dental clinics, disinfecting alginate impression materials is a critical practice to prevent cross-infection. Recently, zinc oxide nanoparticles (ZnO NPs) have been explored for their potential antimicrobial properties, making them promising additives for dental materials. This study investigates the antimicrobial activity of ZnO NPs incorporated into alginate impression materials and assesses the impact on material flow.
View Article and Find Full Text PDFRSC Adv
January 2025
Department of Immunology, School of Basic Medical Sciences, Nanjing Medical University Nanjing 211166 Jiangsu P. R. China
In this work, three iridium(iii) tetrazolato complexes have been used in antibacterial, biofilm removal and for other bioactivities for the first time. Notably, these iridium(iii) tetrazolato complexes with high antibacterial, especially, Ir-CFTAZ showed the best antimicrobial activity and the most effective hemolytic performance, which may pave the way to explore the value of the complexes for clinical applications in the future.
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