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Bai Y, Cao Y, Sun Y, Alfaiz FA, Garalleh HAL, El-Shamy EF, Almujibah H, Ali E, Assilzadeh H. Seaweed biomass as a sustainable resource for synthesis of ZnO nanoparticles using Sargassum wightii ethanol extract and their environmental and biomedical applications through Gaussian mixture model. ENVIRONMENTAL RESEARCH 2024; 249:117464. [PMID: 37980983 DOI: 10.1016/j.envres.2023.117464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 10/13/2023] [Accepted: 10/20/2023] [Indexed: 11/21/2023]
Abstract
Zinc oxide nanoparticles (ZnO) possess unique features that mak them a common matter among different industries. Nevertheless, traditional models of synthesizing ZnO-NPs are related with health and environmental and risks due to harmful chemicals. The biosynthesis of zinc oxide nanoparticles was achieved using the hot water extract of Sargassum wightii (SW), which serves as a reducing agent. This extract is mixed with zinc precursors, initiating a bio-reduction process. UV-vis, FTIR, XRD, Raman, DLS, SEM, EDX, TEM imaging, and XPS analysis are used. The novelty of this research lies in utilizing a bio-reduction process involving hot water extract of SW to synthesize zinc oxide nanoparticles, providing a safer and eco-friendly alternative to traditional chemical methods. Here, the zinc oxide nanoparticles produced through the biosynthesis process effectively addressed oral infections (Streptococcus mutans) due to their ability to disrupt the integrity of bacterial cell membranes, interfere with cellular processes, and inhibit the growth and proliferation of bacteria responsible for oral infections. Gaussian Mixture Models (GMMs) uncover intricate patterns within medical data, enabling enhanced diagnostics, treatment personalization, and patient outcomes. This study aims to apply Gaussian Mixture Models (GMMs) to medical data for subpopulation identification and disease subtyping, contributing to personalized treatment strategies and improved patient care. With a dataset comprising 300 samples, the application of GMM showed lower BIC and AIC values (2500, 3200), a high Silhouette Score (0.65 from -1 to 1) reflecting well-defined clusters, Calinski-Harabasz (120) and Davies-Bouldin Indices (0.45). These metrics collectively underscored the model's success in revealing distinct patterns within the data. ZnO-nanocoated aligners were effective against Streptococcus mutans, with the maximum antibacterial effect observed for 2 days and lasting for 7 days.
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Affiliation(s)
- Yu Bai
- School of Mechatronic Engineering, Xi'an Technological University, Xi'an, 710021, China
| | - Yan Cao
- School of Computer Science and Engineering, Xi'an Technological University, Xi'an, 710021, China
| | - Yiding Sun
- School of Computer Science and Engineering, Xi'an Technological University, Xi'an, 710021, China
| | - Faiz Abdulaziz Alfaiz
- Department of Biology, College of Science, Majmaah University, Al-Majmaah, 11952, Saudi Arabia.
| | - Hakim A L Garalleh
- Department of Mathematical Science, College of Engineering, University of Business and Technology - Dahban, Jeddah, 21361, Saudi Arabia
| | - E F El-Shamy
- Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, Saudi Arabia
| | - Hamad Almujibah
- Department of Civil Engineering, College of Engineering, Taif University, P.O. Box 11099, Taif City, 21974, Saudi Arabia
| | - Elimam Ali
- Department of Civil Engineering, College of Engineering in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj, 11942, Saudi Arabia
| | - Hamid Assilzadeh
- Faculty of Architecture and Urbanism, UTE University, Calle Rumipamba S/N and Bourgeois, Quito, Ecuador; Institute of Research and Development, Duy Tan University, Da Nang, Viet Nam; School of Engineering & Technology, Duy Tan University, Da Nang, Viet Nam; Department of Biomaterials, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Chennai, 600077, India.
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Venkatraman G, Mohan PS, Mashghan MM, Wong KC, Abdul-Rahman PS, Vellasamy KM, Hirad AH, Alarfaj AA, Wang S. Phyto-fabricated ZnO nanoparticles for anticancer, photo-antimicrobial effect on carbapenem-resistant/sensitive Pseudomonas aeruginosa and removal of tetracycline. Bioprocess Biosyst Eng 2024:10.1007/s00449-024-02984-8. [PMID: 38491194 DOI: 10.1007/s00449-024-02984-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 02/11/2024] [Indexed: 03/18/2024]
Abstract
Alternanthera sessilis (AS) leaf extract was used to synthesize zinc oxide nanoparticles (ZnO NPs). Bioanalytical characterization techniques such as X-ray diffraction (XRD) and field emission scanning electron microscope (FESEM) confirmed the formation of crystalline ZnO NPs with average sizes of 40 nm. The AS-ZnO NPs antimicrobial activity was analyzed under dark (D) and white light (WL) conditions. The improved antimicrobial activity was observed against Escherichia coli, Staphylococcus aureus and Bacillus subtilis at the minimal inhibitory concentration (MIC) of 125 and 62.5 µg/mL under WL than the D at 125 and 250 µg/mL for E. coli, B. subtilis, and Pseudomonas aeruginosa, respectively. In contrast, the growth of P. aeruginosa and S. aureus was not completely inhibited until 1 mg/mL AS-ZnO NPs under WL and D. Similarly, AS-ZnO NPs displayed a weaker inhibitory effect against carbapenem-sensitive P. aeruginosa (CSPA) and carbapenem-resistant P. aeruginosa (CRPA) strains of PAC023, PAC041 and PAC032, PAC045 under D. Interestingly, the distinct inhibitory effect was recorded against CSPA PAC041 and CRPA PAC032 in which the bacteria growth was inhibited 99.9% at 250, 500 µg/mL under WL. The cytotoxicity results suggested AS-ZnO NPs demonstrated higher toxicity to MCF-7 breast cancer cells than the RAW264.7 macrophage cells. Further, AS-ZnO NPs exhibited higher catalytic potential against tetracycline hydrochloride (TC-H) degradation at 65.6% and 60.8% under WL than the dark at 59.35% and 48.6% within 120 min. Therefore, AS-ZnO NPs can be used to design a photo-improved antimicrobial formulation and environmental catalyst for removing TC-H from wastewater.
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Affiliation(s)
- Gopinath Venkatraman
- Universiti Malaya Centre for Proteomics Research, Universiti Malaya, 50603, Kuala Lumpur, Malaysia.
- Department of Biochemistry, Saveetha Dental College, Saveetha Institute of Medical @ Technical Sciences, Saveetha University, Chennai, 600 077, India.
| | - Priyadarshini Sakthi Mohan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Maryam Mohammed Mashghan
- Universiti Malaya Centre for Proteomics Research, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Kar-Cheng Wong
- Universiti Malaya Centre for Proteomics Research, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Puteri Shafinaz Abdul-Rahman
- Universiti Malaya Centre for Proteomics Research, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
- Department of Molecular Medicine, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Kumutha Malar Vellasamy
- Department of Medical Microbiology, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Abdurahman Hajinur Hirad
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi Arabia
| | - Abdullah A Alarfaj
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi Arabia
| | - Shifa Wang
- School of Electronic and Information Engineering, Chongqing Three Gorges University, Chongqing, 404000, Wanzhou, China
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Cruz-Luna AR, Vásquez-López A, Rojas-Chávez H, Valdés-Madrigal MA, Cruz-Martínez H, Medina DI. Engineered Metal Oxide Nanoparticles as Fungicides for Plant Disease Control. PLANTS (BASEL, SWITZERLAND) 2023; 12:2461. [PMID: 37447021 DOI: 10.3390/plants12132461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/24/2023] [Accepted: 06/25/2023] [Indexed: 07/15/2023]
Abstract
Metal oxide nanoparticles are considered to be good alternatives as fungicides for plant disease control. To date, numerous metal oxide nanoparticles have been produced and evaluated as promising antifungal agents. Consequently, a detailed and critical review on the use of mono-, bi-, and tri-metal oxide nanoparticles for controlling phytopathogenic fungi is presented. Among the studied metal oxide nanoparticles, mono-metal oxide nanoparticles-particularly ZnO nanoparticles, followed by CuO nanoparticles -are the most investigated for controlling phytopathogenic fungi. Limited studies have investigated the use of bi- and tri-metal oxide nanoparticles for controlling phytopathogenic fungi. Therefore, more studies on these nanoparticles are required. Most of the evaluations have been carried out under in vitro conditions. Thus, it is necessary to develop more detailed studies under in vivo conditions. Interestingly, biological synthesis of nanoparticles has been established as a good alternative to produce metal oxide nanoparticles for controlling phytopathogenic fungi. Although there have been great advances in the use of metal oxide nanoparticles as novel antifungal agents for sustainable agriculture, there are still areas that require further improvement.
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Affiliation(s)
- Aida R Cruz-Luna
- Instituto Politécnico Nacional, CIIDIR-OAXACA, Hornos Núm 1003, Col. Noche Buena, Santa Cruz Xoxocotlán, Oaxaca 71230, Mexico
| | - Alfonso Vásquez-López
- Instituto Politécnico Nacional, CIIDIR-OAXACA, Hornos Núm 1003, Col. Noche Buena, Santa Cruz Xoxocotlán, Oaxaca 71230, Mexico
| | - Hugo Rojas-Chávez
- Tecnológico Nacional de México, Instituto Tecnológico de Tláhuac II, Camino Real 625, Alcaldía Tláhuac, Ciudad de México 13550, Mexico
| | - Manuel A Valdés-Madrigal
- Tecnológico Nacional de México, Instituto Tecnológico Superior de Ciudad Hidalgo, Av. Ing. Carlos Rojas Gutiérrez 2120, Fracc. Valle de la Herradura, Ciudad Hidalgo 61100, Mexico
| | - Heriberto Cruz-Martínez
- Tecnológico Nacional de México, Instituto Tecnológico del Valle de Etla, Abasolo S/N, Barrio del Agua Buena, Santiago Suchilquitongo, Oaxaca 68230, Mexico
| | - Dora I Medina
- Tecnologico de Monterrey, Institute of Advanced Materials for Sustainable Manufacturing, Monterrey 64849, Mexico
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Linima VK, Ragunathan R, Johney J. Biogenic synthesis of RICINUS COMMUNIS mediated iron and silver nanoparticles and its antibacterial and antifungal activity. Heliyon 2023; 9:e15743. [PMID: 37305504 PMCID: PMC10256862 DOI: 10.1016/j.heliyon.2023.e15743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 04/19/2023] [Accepted: 04/20/2023] [Indexed: 06/13/2023] Open
Abstract
In recent years, many strategies have been developed for the biological synthesis of different types of metal nanoparticles, which have been successfully synthesized from various plant extracts and analyzed. Recent studies have demonstrated that nanoparticles have highly promising antimicrobial, antiviral, and anti-cancer properties. In the present study, biological synthesis of Ricinuscommunis leaves was performed with iron and silver nanoparticles. The synthesized iron and silver nanoparticles were characterized by UV-Vis spectroscopy, Fourier transform infrared (FT-IR), X-Ray Diffraction (XRD), Scanning electron microscopy (SEM) with Energy dispersive spectroscopy (EDS), and Transmission electron microscopy (TEM). GC-MS analysis of the Ricinus communis revealed the secondary metabolites of total phenolic and flavonoid contents of the extract, which are responsible for the bio-reduction reaction during nanoparticle synthesis. The UV-Vis spectrum shows Plasmon peaks at 340 nm and 440 nm for iron and silver nanoparticles, respectively. XRD results revealed crystalline structure, while TEM, SEM, and EDS identified iron and silver with mostly cuboidal and spherical shapes. Antimicrobial activity was also performed, and it was found that both nanoparticles were active against Salmonella typhi (6 ± 0.073) and (7 ± 0.040), Staphylococcus aureus, and Aspergillus flavus. MIC was also performed, and AgNPs gave a better bactericidal effect against Staphylococcus aureus.
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Affiliation(s)
- V K Linima
- Department of Biotechnology (Bionanotechnology), Centre for Bioscience and Nanoscience Research, Eachanari, Coimbatore - 21 , Tamilnadu, India
| | - R Ragunathan
- Department of Biotechnology (Bionanotechnology), Centre for Bioscience and Nanoscience Research, Eachanari, Coimbatore - 21 , Tamilnadu, India
| | - Jesteena Johney
- Department of Biotechnology (Bionanotechnology), Centre for Bioscience and Nanoscience Research, Eachanari, Coimbatore - 21 , Tamilnadu, India
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5
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Alprol AE, Mansour AT, El-Beltagi HS, Ashour M. Algal Extracts for Green Synthesis of Zinc Oxide Nanoparticles: Promising Approach for Algae Bioremediation. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16072819. [PMID: 37049112 PMCID: PMC10096179 DOI: 10.3390/ma16072819] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 03/24/2023] [Accepted: 03/30/2023] [Indexed: 05/31/2023]
Abstract
Zinc oxide nanoparticles (ZnO-NPs) possess unique properties, making them a popular material across various industries. However, traditional methods of synthesizing ZnO-NPs are associated with environmental and health risks due to the use of harmful chemicals. As a result, the development of eco-friendly manufacturing practices, such as green-synthesis methodologies, has gained momentum. Green synthesis of ZnO-NPs using biological substrates offers several advantages over conventional approaches, such as cost-effectiveness, simplicity of scaling up, and reduced environmental impact. While both dried dead and living biomasses can be used for synthesis, the extracellular mode is more commonly employed. Although several biological substrates have been successfully utilized for the green production of ZnO-NPs, large-scale production remains challenging due to the complexity of biological extracts. In addition, ZnO-NPs have significant potential for photocatalysis and adsorption in the remediation of industrial effluents. The ease of use, efficacy, quick oxidation, cost-effectiveness, and reduced synthesis of harmful byproducts make them a promising tool in this field. This review aims to describe the different biological substrate sources and technologies used in the green synthesis of ZnO-NPs and their impact on properties. Traditional synthesis methods using harmful chemicals limit their clinical field of use. However, the emergence of algae as a promising substrate for creating safe, biocompatible, non-toxic, economic, and ecological synthesis techniques is gaining momentum. Future research is required to explore the potential of other algae species for biogenic synthesis. Moreover, this review focuses on how green synthesis of ZnO-NPs using biological substrates offers a viable alternative to traditional methods. Moreover, the use of these nanoparticles for industrial-effluent remediation is a promising field for future research.
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Affiliation(s)
- Ahmed E. Alprol
- National Institute of Oceanography and Fisheries (NIOF), Cairo 11516, Egypt
| | - Abdallah Tageldein Mansour
- Animal and Fish Production Department, College of Agricultural and Food Sciences, King Faisal University, P.O. Box 420, Al Hofuf 31982, Saudi Arabia
- Fish and Animal Production Department, Faculty of Agriculture (Saba Basha), Alexandria University, Alexandria 21531, Egypt
| | - Hossam S. El-Beltagi
- Agricultural Biotechnology Department, College of Agriculture and Food Sciences, King Faisal University, P.O. Box 420, Al-Ahsa 31982, Saudi Arabia
- Biochemistry Department, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
| | - Mohamed Ashour
- National Institute of Oceanography and Fisheries (NIOF), Cairo 11516, Egypt
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Palaniyandi T, Baskar G, V B, Viswanathan S, Abdul Wahab MR, Govindaraj MK, Sivaji A, Rajendran BK, Kaliamoorthy S. Biosynthesis of iron nanoparticles using brown algae Spatoglossum asperum and its antioxidant and anticancer activities through in vitro and in silico studies. PARTICULATE SCIENCE AND TECHNOLOGY 2023. [DOI: 10.1080/02726351.2022.2159900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Thirunavukkarasu Palaniyandi
- Department of Biotechnology, Dr. M.G.R Educational and Research Institute, Deemed to be University, Chennai, India
- Department of Anatomy, Biomedical Research Unit and Laboratory Animal Centre, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
| | - Gomathy Baskar
- Department of Biotechnology, Dr. M.G.R Educational and Research Institute, Deemed to be University, Chennai, India
| | - Bhagyalakshmi V
- Department of Biotechnology, Dr. M.G.R Educational and Research Institute, Deemed to be University, Chennai, India
| | - Sandhiya Viswanathan
- Department of Biotechnology, Dr. M.G.R Educational and Research Institute, Deemed to be University, Chennai, India
| | - Mugip Rahaman Abdul Wahab
- Department of Biotechnology, Dr. M.G.R Educational and Research Institute, Deemed to be University, Chennai, India
| | - Manoj Kumar Govindaraj
- Department of Biotechnology, Dr. M.G.R Educational and Research Institute, Deemed to be University, Chennai, India
| | - Asha Sivaji
- Department of Biochemistry, DKM College for Women, Vellore, India
| | | | - Senthilkumar Kaliamoorthy
- Department of Electronics and Communication Engineering, Dr. M.G.R Educational and Research Institute, Chennai, India
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Harish, Kumari S, Parihar J, Akash, Kumari J, Kumar L, Debnath M, Kumar V, Mishra RK, Gwag JS, Singhal R, Mukhopadhyay AK, Kumar P. Synthesis, Characterization, and Antibacterial Activity of Calcium Hydroxide Nanoparticles Against Gram‐Positive and Gram‐Negative Bacteria. ChemistrySelect 2022. [DOI: 10.1002/slct.202203094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Harish
- Department of Physics Manipal University Jaipur Jaipur 303007 Rajasthan India
| | - Sapna Kumari
- Department of Bioscience Manipal University Jaipur Jaipur 303007 Rajasthan
| | - Jagdish Parihar
- Department of Physics Manipal University Jaipur Jaipur 303007 Rajasthan India
- Department of Bioscience & Bioengineering Indian Institute of Technology (IIT) - Jodhpur Jodhpur 342001 Rajasthan India
| | - Akash
- Department of Physics Manipal University Jaipur Jaipur 303007 Rajasthan India
| | - Jyoti Kumari
- Department of Physics Manipal University Jaipur Jaipur 303007 Rajasthan India
| | - Lalit Kumar
- Department of Physics Manipal University Jaipur Jaipur 303007 Rajasthan India
| | - Mousumi Debnath
- Department of Bioscience Manipal University Jaipur Jaipur 303007 Rajasthan
| | - Vipin Kumar
- Department of Physics Yeungnam University Gyeongsan, Gyeongbuk 38541 South Korea
| | | | - Jin Seog Gwag
- Department of Physics Yeungnam University Gyeongsan, Gyeongbuk 38541 South Korea
| | - Rahul Singhal
- Department of Physics Malaviya National Institute of Technology Jaipur 302017 India
| | - Anoop Kumar Mukhopadhyay
- Department of Physics Manipal University Jaipur Jaipur 303007 Rajasthan India
- Department of Physics Sharda School of Basic Sciences and Research Sharda University, Greater Noida 201310 Uttar Pradesh India
| | - Pushpendra Kumar
- Department of Physics Manipal University Jaipur Jaipur 303007 Rajasthan India
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Bora KA, Hashmi S, Zulfiqar F, Abideen Z, Ali H, Siddiqui ZS, Siddique KHM. Recent progress in bio-mediated synthesis and applications of engineered nanomaterials for sustainable agriculture. FRONTIERS IN PLANT SCIENCE 2022; 13:999505. [PMID: 36262650 PMCID: PMC9574372 DOI: 10.3389/fpls.2022.999505] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023]
Abstract
The ever-increasing demand for agricultural food products, medicine, and other commercial sectors requires new technologies for agricultural practices and promoting the optimum utilization of natural resources. The application of engineered nanomaterials (ENMs) enhance the biomass production and yield of food crop while resisting harmful environmental stresses. Bio-mediated synthesis of ENMs are time-efficient, low-cost, environmentally friendly, green technology. The precedence of using a bio-mediated route over conventional precursors for ENM synthesis is non-toxic and readily available. It possesses many active agents that can facilitate the reduction and stabilization processes during nanoparticle formation. This review presents recent developments in bio-mediated ENMs and green synthesis techniques using plants, algae, fungi, and bacteria, including significant contributions to identifying major ENM applications in agriculture with potential impacts on sustainability, such as the role of different ENMs in agriculture and their impact on different plant species. The review also covers the advantages and disadvantages of different ENMs and potential future research in this field.
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Affiliation(s)
- Kainat Amin Bora
- Department of Chemical Engineering, Nadirshaw Eduljee Dinshaw (NED) University of Engineering and Technology, Karachi, Pakistan
| | - Saud Hashmi
- Department of Chemical Engineering, Nadirshaw Eduljee Dinshaw (NED) University of Engineering and Technology, Karachi, Pakistan
- Department of Polymer and Petrochemical Engineering, NED University of Engineering and Technology, Karachi, Pakistan
| | - Faisal Zulfiqar
- Department of Horticultural Sciences, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Zainul Abideen
- Dr. Muhammad Ajmal Khan Institute of Sustainable Halophyte Utilization, University of Karachi, Karachi, Pakistan
| | - Haibat Ali
- Department of Environmental Sciences, Karakorum International University, Gilgit, Pakistan
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Biogenic Synthesis of ZnO Nanoparticles and Their Application as Bioactive Agents: A Critical Overview. REACTIONS 2022. [DOI: 10.3390/reactions3030030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Zinc oxide is a safe material for humans, with high biocompatibility and negligible cytotoxicity. Interestingly, it shows exceptional antimicrobial activity against bacteria, viruses, fungi, etc., especially when reduced to the nanometer size. As it is easily understandable, thanks to its properties, it is at the forefront of safe antimicrobials in this pandemic era. Besides, in the view of the 2022 European Green Deal announced by the European Commission, even science and nanotechnology are moving towards “greener” approaches to the synthesis of nanoparticles. Among them, biogenic ZnO nanoparticles have been extensively studied for their biological applications and environmental remediation. Plants, algae, fungi, yeast, etc., (which are composed of naturally occurring biomolecules) play, in biogenic processes, an active role in the formation of nanoparticles with distinct shapes and sizes. The present review targets the biogenic synthesis of ZnO nanoparticles, with a specific focus on their bioactive properties and antimicrobial application.
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Peddada LM, Sagurthi SR, Guguloth VC, Annapragada R, Kanuparthy PR. Visible Light Driven Photodegradation of Pathological Effluents and Biological Evaluation of Green ZnO Nanoparticles. ChemistrySelect 2022. [DOI: 10.1002/slct.202200146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Lakshmi Madhuri Peddada
- School of Science GITAM (Deemed to be University) Hyderabad Telangana 502329 India
- St. Francis College for Women, Begumpet Hyderabad Telangana 500016 India
| | - Someswar Rao Sagurthi
- Department of Genetics and Biotechnology University College of Science Osmania University Hyderabad Telangana 500007 India
| | - Vijaya Charan Guguloth
- Department of Chemistry University College of Science Osmania University Hyderabad Telangana 500007 India
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Phyco-Synthesized Zinc Oxide Nanoparticles Using Marine Macroalgae, Ulva fasciata Delile, Characterization, Antibacterial Activity, Photocatalysis, and Tanning Wastewater Treatment. Catalysts 2022. [DOI: 10.3390/catal12070756] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The aqueous extract of marine green macroalgae, Ulva fasciata Delile, was harnessed for the synthesis of zinc oxide nanoparticles (ZnO-NPs). The conversion to ZnO-NPs was characterized by color change, UV–vis spectroscopy, FT-IR, TEM, SEM-EDX, and XRD. Data showed the formation of spherical and crystalline ZnO-NPs with a size range of 3–33 nm. SEM-EDX revealed the presence of Zn and O in weight percentages of 45.3 and 31.62%, respectively. The phyco-synthesized ZnO-NPs exhibited an effective antibacterial activity against the pathogenic Gram-positive and Gram-negative bacteria. The bacterial clear zones ranged from 21.7 ± 0.6 to 14.7 ± 0.6 mm with MIC values of 50–6.25 µg mL−1. The catalytic activity of our product was investigated in dark and visible light conditions, using the methylene blue (MB) dye. The maximum dye removal (84.9 ± 1.2%) was achieved after 140 min in the presence of 1.0 mg mL−1 of our nanocatalyst under the visible light at a pH of 7 and a temperature of 35 °C. This percentage was decreased to 53.4 ± 0.7% under the dark conditions. This nanocatalyst showed a high reusability with a decreasing percentage of ~5.2% after six successive cycles. Under the optimum conditions, ZnO-NPs showed a high efficacy in decolorizing the tanning wastewater with a percentage of 96.1 ± 1.7%. Moreover, the parameters of the COD, BOD, TSS, and conductivity were decreased with percentages of 88.8, 88.5, 96.9, and 91.5%, respectively. Moreover, nano-ZnO had a high efficacy in decreasing the content of the tanning wastewater Cr (VI) from 864.3 ± 5.8 to 57.3 ± 4.1 mg L−1 with a removal percentage of 93.4%.
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