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Wang S, Tang K, Zhang Z, Liu H, Yao Y, Liao X. PBAT/lignin-ZnO composite film for food packaging: Photo-stability, better barrier and antibacterial properties. Int J Biol Macromol 2024; 275:133651. [PMID: 38972656 DOI: 10.1016/j.ijbiomac.2024.133651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 06/14/2024] [Accepted: 07/01/2024] [Indexed: 07/09/2024]
Abstract
When PBAT used as film, stability deteriorates under sunlight exposure, the poor barrier and antibacterial properties are also limiting its application. In this work, lignin-ZnO nanoparticles were prepared by hydrothermal method, as additives to fill the PBAT matrix. In addition, PBAT-lignin-ZnO composite films were successfully prepared by melting and hot-pressing method. It is found that lignin could well dispersed the ZnO when its implantation into PBAT films, and lignin-ZnO not only maintaining tensile strength and thermal stability, but also could prompt PBAT's crystallinity. Especially, P-L-ZnO-2 composite films have good photostability. After 60 h aging, it can still maintain good molecular weight, chemical structure and mechanical properties. Besides, these composite films have improved hydrophobicity, barrier and antibacterial properties, could prevent mildew and significantly reduce the weight loss rate, color difference and hardness changes of strawberries during storage. This work provides a potential film material for outdoor applications and food packaging.
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Affiliation(s)
- Shaoze Wang
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, China
| | - Kui Tang
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, China
| | - Zhijie Zhang
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, China
| | - Haitang Liu
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, China; China Light Industry Key Laboratory of Papermaking and Biorefinery, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Yue Yao
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, China
| | - Xiaoyuan Liao
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, China.
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Zelekew OA, Haitosa HH, Chen X, Wu YN. Recent progress on plant extract-mediated biosynthesis of ZnO-based nanocatalysts for environmental remediation: Challenges and future outlooks. Adv Colloid Interface Sci 2023; 317:102931. [PMID: 37267679 DOI: 10.1016/j.cis.2023.102931] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 05/03/2023] [Accepted: 05/22/2023] [Indexed: 06/04/2023]
Abstract
The plant extract mediated green synthesis of nanomaterials has attracts enormous interest due to its cost-effectiveness, greener, and environmentally friendly. It is also considered as an alternative and facile method in which the phytochemicals can be used as a natural capping and reducing agents and helped to produce nanomaterials with high surface area, different sizes, and shapes. One of the materials fabricated using green methods is zinc oxide (ZnO) semiconductor due to its enormous applications in different field areas. In this review, an overview of recent progress on green synthesized ZnO-based catalysts and various modification methods for the purpose of enhancing the catalytic activity of ZnO and the corresponding structural-activity and interactions towards the removal of pollutants are highlighted. Particularly, the plant extract mediated ZnO-based photocatalysts application for the removal of pollutants via photocatalytic degradation, reduction reaction, and adsorption mechanism are demonstrated. Besides, the opportunities, challenges, and future outlooks of ZnO-based materials for environmental remediation with green and sustainable methods are also included. We believe that this review is a timely and comprehensive review on the recent progress related to plant extract mediated ZnO-based nanocatalysts synthesis and applications for environmental remediation.
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Affiliation(s)
- Osman Ahmed Zelekew
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, 1239 Siping Rd., Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, 1239 Siping Rd., Shanghai 200092, China; Department of Materials Science and Engineering, Adama Science and Technology University, Adama, Ethiopia
| | - Haileyesus Hatano Haitosa
- Department of Materials Science and Engineering, Adama Science and Technology University, Adama, Ethiopia
| | - Xiaoyun Chen
- College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yi-Nan Wu
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, 1239 Siping Rd., Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, 1239 Siping Rd., Shanghai 200092, China.
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Jobe MC, Mthiyane DM, Mwanza M, Onwudiwe DC. Biosynthesis of zinc oxide and silver/zinc oxide nanoparticles from Urginea epigea for antibacterial and antioxidant applications. Heliyon 2022; 8:e12243. [PMID: 36593860 PMCID: PMC9803788 DOI: 10.1016/j.heliyon.2022.e12243] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 08/28/2022] [Accepted: 12/01/2022] [Indexed: 12/14/2022] Open
Abstract
Zinc oxide (ZnO) and silver-zinc oxide (Ag/ZnO) nanocomposite were synthesized by a green method using Zn(CH3COO)2 and AgNO3 as precursors for zinc and silver respectively; and Urginea epigea bulb extract as a reducing/capping agent. The nanomaterials were characterized by X-ray diffraction (XRD) analysis, Fourier transform infrared spectrophotometer (FTIR), ultraviolet-visible spectrophotometer, scanning, and transmission electron microscopy (SEM and TEM). Their elemental composition was studied using EDX analysis, while elementary mapping was used to show the distribution of the constituent elements. The powder X-ray diffraction confirmed hexagonal phase ZnO, while the Ag/ZnO nanocomposites identified additional planes due to cubic phase Ag nanoparticles. The absorption spectrum of the nanocomposite indicated a red shifting of the absorption band of the metallic ZnO and a surface plasmon resonance (SPR) band's appearance in the visible region due to the metallic Ag nanoparticles. The analysis from the TEM image showed the particles were of spherical morphology with a mean size of 35 nm (ZnO) and 33.50 nm (Ag/ZnO). The biological activity of the nanoparticles was studied for their antibacterial and antioxidant capacity so as to assess their ability to hinder bacterial growth and capture radical species respectively. The results demonstrated that the modification of ZnO with silver nanoparticles enhanced the antibacterial potency but reduced the antioxidant activity. This biogenic method offers a facile approach to nanoparticles for biological purposes, and the strategy may be extended to other metal oxide and their composites with metallic silver nanoparticles as a more effective approach compared to the physical and chemical routes.
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Affiliation(s)
- Martha Cebile Jobe
- Department of Animal Science, School of Agricultural Sciences, Faculty of Natural and Agricultural Sciences, North-West University (Mahikeng Campus), Private Bag X2046, Mmabatho, South Africa
| | - Doctor M.N. Mthiyane
- Department of Animal Science, School of Agricultural Sciences, Faculty of Natural and Agricultural Sciences, North-West University (Mahikeng Campus), Private Bag X2046, Mmabatho, South Africa,Food Security and Safety Focus Area, North-West University (Mahikeng Campus), Mmabatho 2735, South Africa
| | - Mulunda Mwanza
- Food Security and Safety Focus Area, North-West University (Mahikeng Campus), Mmabatho 2735, South Africa,Department of Animal Health, School of Agricultural Sciences, North-West University (Mahikeng Campus), Private Bag X2046, Mmabatho, South Africa
| | - Damian C. Onwudiwe
- Material Science Innovation and Modelling (MaSIM) Research Focus Area, North-West University (Mahikeng Campus), Private Bag X2046, Mmabatho, South Africa,Department of Chemistry, School of Physical and Chemical Sciences, Faculty of Natural and Agricultural Sciences, North-West University (Mahikeng Campus), Private Bag X2046, Mmabatho, South Africa,Corresponding author.
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Krishna PG, Chandra Mishra P, Naika MM, Gadewar M, Ananthaswamy PP, Rao S, Boselin Prabhu SR, Yatish KV, Nagendra HG, Moustafa M, Al-Shehri M, Jha SK, Lal B, Stephen Santhakumari SM. Photocatalytic Activity Induced by Metal Nanoparticles Synthesized by Sustainable Approaches: A Comprehensive Review. Front Chem 2022; 10:917831. [PMID: 36118313 PMCID: PMC9479337 DOI: 10.3389/fchem.2022.917831] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 06/06/2022] [Indexed: 12/29/2022] Open
Abstract
Nanotechnology is a fast-expanding area with a wide range of applications in science, engineering, health, pharmacy, and other fields. Among many techniques that are employed toward the production of nanoparticles, synthesis using green technologies is the simplest and environment friendly. Nanoparticles produced from plant extracts have become a very popular subject of study in recent decades due to their diverse advantages such as low-cost synthesis, product stability, and ecofriendly protocols. These merits have prompted the development of nanoparticles from a variety of sources, including bacteria, fungi, algae, proteins, enzymes, etc., allowing for large-scale production with minimal contamination. However, nanoparticles obtained from plant extracts and phytochemicals exhibit greater reduction and stabilization and hence have proven the diversity of properties, like catalyst/photocatalyst, magnetic, antibacterial, cytotoxicity, circulating tumor deoxy ribo nucleic acid (CT-DNA) binding, gas sensing, etc. In the current scenario, nanoparticles can also play a critical role in cleaning wastewater and making it viable for a variety of operations. Nano-sized photocatalysts have a great scope toward the removal of large pollutants like organic dyes, heavy metals, and pesticides in an eco-friendly and sustainable manner from industrial effluents. Thus, in this review article, we discuss the synthesis of several metal nanoparticles using diverse plant extracts, as well as their characterization via techniques like UV–vis (ultraviolet–visible), XRD (X-ray diffraction), SEM (scanning electron microscopy), TEM (transmission electron microscopy), FTIR (Fourier transform infrared spectroscopy), etc., and catalytic activity on various hazardous systems.
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Affiliation(s)
- Prashanth Gopala Krishna
- Department of Chemistry, Sir M. Visvesvaraya Institute of Technology, Affiliated to Visvesvaraya Technological University, Bengaluru, India
- *Correspondence: Prashanth Gopala Krishna, , ; Saurabh Kumar Jha,
| | - Prabhu Chandra Mishra
- Department of Biotechnology, School of Engineering & Technology, Sharda University, Greater Noida, India
| | - Mutthuraju Mahadev Naika
- Department of Chemistry, Sai Vidya Institute of Technology, Affiliated to Visvesvaraya Technological University, Bengaluru, India
| | - Manoj Gadewar
- Department of Pharmacology, School of Medical and Allied Sciences, KR Mangalam University, Gurgaon, India
| | | | - Srilatha Rao
- Department of Chemistry, Nitte Meenakshi Institute of Technology, Affiliated to Visvesvaraya Technological University, Bengaluru, India
| | | | | | - Holenarasipura Gundurao Nagendra
- Department of Bio Technology, Sir M. Visvesvaraya Institute of Technology, Affiliated to Visvesvaraya Technological University, Bengaluru, India
| | - Mahmoud Moustafa
- Department of Biology, Faculty of Science, King Khalid University, Abha, Saudi Arabia
- Department of Botany and Microbiology, Faculty of Science, South Valley University, Qena, Egypt
| | - Mohammed Al-Shehri
- Department of Biology, Faculty of Science, King Khalid University, Abha, Saudi Arabia
| | - Saurabh Kumar Jha
- Department of Biotechnology, School of Engineering & Technology, Sharda University, Greater Noida, India
- Department of Biotechnology, School of Applied and Life Sciences (SALS), Uttaranchal University, Dehradun, India
- Department of Biotechnology Engineering and Food Technology, Chandigarh University, Mohali, India
- *Correspondence: Prashanth Gopala Krishna, , ; Saurabh Kumar Jha,
| | - Bharat Lal
- Department of Pharmaceutics, School of Medical and Allied Sciences, KR Mangalam University, Gurgaon, India
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