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Nguyen NH, Le TP, Duong TBN, Le VK, Ho HHD, Nguyen LHT, Le Hoang Doan T, Mai NXD, Nguyen LMT, Pham NK. Enhancement of Visible Light Antibacterial Activities of Cellulose Fibers from Lotus Petiole Decorated ZnO Nanoparticles. Appl Biochem Biotechnol 2024:10.1007/s12010-024-04868-9. [PMID: 38381311 DOI: 10.1007/s12010-024-04868-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2024] [Indexed: 02/22/2024]
Abstract
Cellulose/ZnO (CZ) nanocomposites are promising antimicrobial materials known for their antibiotic-free nature, biocompatibility, and environmental friendliness. In this study, cellulose fibers extracted from lotus petioles were utilized as a substrate and decorated with various shapes of ZnO nanoparticles (NPs), including small bean, hexagonal ingot-like, long cylindrical, and hexagonal cylinder-shaped NPs. Increasing zinc salt molar concentration resulted in highly crystalline ZnO NPs forming and enhanced interactions between ZnO NPs and -OH groups of cellulose. The thermal stability and UV-visible absorption properties of the CZ samples were influenced by ZnO concentration. Notably, at a ZnO molar ratio of 0.1, the CZ 0.1 sample demonstrated the lowest weight loss, while the optical band gap gradually decreased from 3.0 to 2.45 eV from the CZ 0.01 to CZ 1.0 samples. The CZ nanocomposites exhibited remarkable antibacterial activity against both Staphylococcus aureus (S. aureus, Gram-positive) and Escherichia coli (E. coli, Gram-negative) bacteria under visible light conditions, with a minimum inhibitory concentration (MIC) of 0.005 mg/mL for both bacterial strains. The bactericidal effects increased with higher concentrations of ZnO NPs, even achieving 100% inhibition. Incorporating ZnO NPs onto cellulose fibers derived from lotus plants presents a promising avenue for developing environmentally friendly materials with broad applications in antibacterial and environmental fields.
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Affiliation(s)
- Ngoc Hong Nguyen
- Faculty of Materials Science and Technology, University of Science, Ho Chi Minh City, Vietnam
- Vietnam National University, Ho Chi Minh City, Vietnam
| | - Truong Phi Le
- Vietnam National University, Ho Chi Minh City, Vietnam
- Faculty of Biology and Biotechnology, University of Science, Ho Chi Minh City, Vietnam
| | - Trung Bao Ngoc Duong
- Vietnam National University, Ho Chi Minh City, Vietnam
- Faculty of Biology and Biotechnology, University of Science, Ho Chi Minh City, Vietnam
| | - Vien Ky Le
- Vietnam National University, Ho Chi Minh City, Vietnam
- Faculty of Biology and Biotechnology, University of Science, Ho Chi Minh City, Vietnam
| | - Hau Huu Do Ho
- Faculty of Materials Science and Technology, University of Science, Ho Chi Minh City, Vietnam
- Vietnam National University, Ho Chi Minh City, Vietnam
| | - Linh Ho Thuy Nguyen
- Vietnam National University, Ho Chi Minh City, Vietnam
- Center for Innovative Materials and Architectures (INOMAR), Ho Chi Minh City, Vietnam
| | - Tan Le Hoang Doan
- Vietnam National University, Ho Chi Minh City, Vietnam
- Center for Innovative Materials and Architectures (INOMAR), Ho Chi Minh City, Vietnam
| | - Ngoc Xuan Dat Mai
- Vietnam National University, Ho Chi Minh City, Vietnam
- Center for Innovative Materials and Architectures (INOMAR), Ho Chi Minh City, Vietnam
| | - Lan My Thi Nguyen
- Vietnam National University, Ho Chi Minh City, Vietnam
- Faculty of Biology and Biotechnology, University of Science, Ho Chi Minh City, Vietnam
| | - Ngoc Kim Pham
- Faculty of Materials Science and Technology, University of Science, Ho Chi Minh City, Vietnam.
- Vietnam National University, Ho Chi Minh City, Vietnam.
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