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Furxhi I, Faccani L, Zanoni I, Brigliadori A, Vespignani M, Costa AL. Design rules applied to silver nanoparticles synthesis: A practical example of machine learning application. Comput Struct Biotechnol J 2024; 25:20-33. [PMID: 38444982 PMCID: PMC10914561 DOI: 10.1016/j.csbj.2024.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/12/2024] [Accepted: 02/14/2024] [Indexed: 03/07/2024] Open
Abstract
The synthesis of silver nanoparticles with controlled physicochemical properties is essential for governing their intended functionalities and safety profiles. However, synthesis process involves multiple parameters that could influence the resulting properties. This challenge could be addressed with the development of predictive models that forecast endpoints based on key synthesis parameters. In this study, we manually extracted synthesis-related data from the literature and leveraged various machine learning algorithms. Data extraction included parameters such as reactant concentrations, experimental conditions, as well as physicochemical properties. The antibacterial efficiencies and toxicological profiles of the synthesized nanoparticles were also extracted. In a second step, based on data completeness, we employed regression algorithms to establish relationships between synthesis parameters and desired endpoints and to build predictive models. The models for core size and antibacterial efficiency were trained and validated using a cross-validation approach. Finally, the features' impact was evaluated via Shapley values to provide insights into the contribution of features to the predictions. Factors such as synthesis duration, scale of synthesis and the choice of capping agents emerged as the most significant predictors. This study demonstrated the potential of machine learning to aid in the rational design of synthesis process and paves the way for the safe-by-design principles development by providing insights into the optimization of the synthesis process to achieve the desired properties. Finally, this study provides a valuable dataset compiled from literature sources with significant time and effort from multiple researchers. Access to such datasets notably aids computational advances in the field of nanotechnology.
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Affiliation(s)
- Irini Furxhi
- CNR-ISSMC (Former ISTEC), National Research Council of Italy-Institute of Science, Technology and Sustainability for Ceramics, Faenza, Italy
- Transgero Limited, Limerick, Ireland
| | - Lara Faccani
- CNR-ISSMC (Former ISTEC), National Research Council of Italy-Institute of Science, Technology and Sustainability for Ceramics, Faenza, Italy
| | - Ilaria Zanoni
- CNR-ISSMC (Former ISTEC), National Research Council of Italy-Institute of Science, Technology and Sustainability for Ceramics, Faenza, Italy
| | - Andrea Brigliadori
- CNR-ISSMC (Former ISTEC), National Research Council of Italy-Institute of Science, Technology and Sustainability for Ceramics, Faenza, Italy
| | - Maurizio Vespignani
- CNR-ISSMC (Former ISTEC), National Research Council of Italy-Institute of Science, Technology and Sustainability for Ceramics, Faenza, Italy
| | - Anna Luisa Costa
- CNR-ISSMC (Former ISTEC), National Research Council of Italy-Institute of Science, Technology and Sustainability for Ceramics, Faenza, Italy
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Okeke ES, Nweze EJ, Anaduaka EG, Okoye CO, Anosike CA, Joshua PE, Ezeorba TPC. Plant-derived nanomaterials (PDNM): a review on pharmacological potentials against pathogenic microbes, antimicrobial resistance (AMR) and some metabolic diseases. 3 Biotech 2023; 13:291. [PMID: 37547919 PMCID: PMC10403488 DOI: 10.1007/s13205-023-03713-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 07/22/2023] [Indexed: 08/08/2023] Open
Abstract
Plant-derived nanomaterials (PDNM) have gained significant attention recently due to their potential pharmacological applications against pathogenic microbes, antimicrobial resistance (AMR), and certain metabolic diseases. This review introduces the concept of PDNMs and their unique properties, including their small size, high surface area, and ability to penetrate biological barriers. Besides various methods for synthesizing PDNMs, such as green synthesis techniques that utilize plant extracts and natural compounds, the advantages of using plant-derived materials, such as their biocompatibility, biodegradability, and low toxicity, were elucidated. In addition, it examines the recent and emerging trends in nanomaterials derived from plant approaches to combat antimicrobial resistance and metabolic diseases. The sizes of nanomaterials and their surface areas are vital as they play essential roles in the interactions and relationships between these materials and the biological components or organization. We critically analyze the biomedical applications of nanoparticles which include antibacterial composites for implantable devices and nanosystems to combat antimicrobial resistance, enhance antibiotic delivery, and improve microbial diagnostic/detection systemsIn addition, plant extracts can potentially interfere with metabolic syndrome pathways; hence most nano-formulations can reduce chronic inflammation, insulin resistance, oxidative stress, lipid profile, and antimicrobial resistance. As a result, these innovative plant-based nanosystems may be a promising contender for various pharmacological applications.
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Affiliation(s)
- Emmanuel Sunday Okeke
- Department of Biochemistry, Faculty of Biological Sciences, University of Nigeria, Nsukka, 410001 Enugu Nigeria
- Natural Science Unit, School of General Studies, University of Nigeria, Nsukka, 410001 Enugu Nigeria
- Institute of Environmental Health and Ecological Security, School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013 Jiangsu China
| | - Ekene John Nweze
- Department of Biochemistry, Faculty of Biological Sciences, University of Nigeria, Nsukka, 410001 Enugu Nigeria
| | - Emeka Godwin Anaduaka
- Department of Biochemistry, Faculty of Biological Sciences, University of Nigeria, Nsukka, 410001 Enugu Nigeria
- Department of Genetics and Biotechnology, Faculty of Biological Sciences, University of Nigeria, Nsukka, 410001 Enugu Nigeria
| | - Charles Obinwanne Okoye
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013 People’s Republic of China
- Department of Zoology and Environmental Biology, University of Nigeria, Nsukka, 410001 Enugu Nigeria
- Biofuels Institute, Jiangsu University, Zhenjiang, 212013 People’s Republic of China
| | - Chioma Assumpta Anosike
- Department of Biochemistry, Faculty of Biological Sciences, University of Nigeria, Nsukka, 410001 Enugu Nigeria
| | - Parker Elijah Joshua
- Department of Biochemistry, Faculty of Biological Sciences, University of Nigeria, Nsukka, 410001 Enugu Nigeria
- Department of Genetics and Biotechnology, Faculty of Biological Sciences, University of Nigeria, Nsukka, 410001 Enugu Nigeria
| | - Timothy Prince Chidike Ezeorba
- Department of Biochemistry, Faculty of Biological Sciences, University of Nigeria, Nsukka, 410001 Enugu Nigeria
- Department of Genetics and Biotechnology, Faculty of Biological Sciences, University of Nigeria, Nsukka, 410001 Enugu Nigeria
- Department of Environmental Health and Risk Management, College of Life and Environmental Sciences, University of Birmingham Edgbaston, Birmingham, B15 2TT UK
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Moorthy P, Kavitha HP. Comparative Evaluation of Bioefficiency and Photocatalytic Activity of Green Synthesized Bismuth Oxide Nanoparticles Using Three Different Leaf Extracts. ACS OMEGA 2023; 8:14752-14765. [PMID: 37125094 PMCID: PMC10134460 DOI: 10.1021/acsomega.3c00792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 03/31/2023] [Indexed: 05/03/2023]
Abstract
Nanotechnology has emerged as a promising method for wastewater recycling. In this line, the current study emphasizes the leaf-extract-mediated biosynthesis of bismuth oxide nanostructures (BiONPs) using three different plants, namely Coldenia procumbens Linn (Creeping Coldenia), Citrus limon (Lemon), and Murraya koenigii (Curry) through a greener approach and evaluates their biological properties as well as photocatalytic performance for the first time. As-synthesized BiONPs were physiochemically characterized using UV-visible spectroscopy, Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), and high-resolution transmission electron microscopy (HRTEM) with energy dispersive X-ray analysis (EDAX). Using the well diffusion method, research on the antibacterial efficiency of BiONPs against human pathogenic Gram-positive bacteria, such as Staphylococcus aureus and Enterococcus faecalis, and Gram-negative bacteria, including Escherichia coli and Klebsiella pneumonia, revealed that Gram-negative bacteria exhibited relatively strong activity. The larvicidal activity assessed against Aedes aegypti and Aedes albopictus mosquito larvae reveals promising larvicidal activity with a minimal dosage of BiONPs with LC50 values of 5.53 and 19.24 ppm, respectively, after 24 h of exposure. The excellent photocatalytic activity of as-synthesized BiONPs was demonstrated through the photodegradation of malachite green (MG) and methylene blue (MB) dyes with respective degradation performance parameters of 70 and 90%. The biogenic synthetic approach reported here enables the scalable commercial synthesis of bismuth nanostructures for their widespread use in catalysis for wastewater treatment and environmental cleanup.
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Irfan MM, Shah SU, Shah KU, Anton N, Idoux-Gillet Y, Conzatti G, Shah KU, Perennes E, Vandamme T. Impact of formulation design and lyophilisation on the physicochemical characteristics of finasteride nanosystems. J Microencapsul 2023; 40:106-123. [PMID: 36749573 DOI: 10.1080/02652048.2023.2178537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The fundamental purpose of this study was to develop a stable lyophilised finasteride nanosystem (FNS-NS) for topical delivery. The FNS-NS was fabricated using an ultrasonication technique. The impact of two different cryoprotectants on the physicochemical characteristics of FNS-NS before and after lyophilisation was thoroughly investigated. The lyophilised FNS-NS had spherical shape with particle size lied between 188.6 nm ± 4.4 and 298.7 nm ± 4.7, low PDI values (0.26 ± 0.02 to 0.32 ± 0.02) and zeta potential ranging from -38.3 to +53.3 mV. The confocal laser microscopy depicted a comparatively higher cellular internalisation achieved for undecorated FNS-NS with respect to its chitosan-decorated counterpart. The lyophilised FNS-NS was stable for 90 days at proper storage conditions. The FNS-NS with 15% trehalose had appropriate physicochemical attributes that could be a promising carrier for topical delivery to treat androgenic alopecia.
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Affiliation(s)
- Malik Muhammad Irfan
- Gomal Centre of Pharmaceutical Sciences (GCPS), Faculty of Pharmacy, Gomal University, Dera Ismail Khan, Pakistan
- Faculty of Pharmacy, Universite de Strasbourg, Illkirch, Strasbourg, France
- INSERM, Regenerative Nanomedicine UMR 1260, Centre de Recherche en Biomédecine de Strasbourg (CRBS), Université de Strasbourg, Strasbourg, France
| | - Shefaat Ullah Shah
- Gomal Centre of Pharmaceutical Sciences (GCPS), Faculty of Pharmacy, Gomal University, Dera Ismail Khan, Pakistan
| | | | - Nicolas Anton
- Faculty of Pharmacy, Universite de Strasbourg, Illkirch, Strasbourg, France
- INSERM, Regenerative Nanomedicine UMR 1260, Centre de Recherche en Biomédecine de Strasbourg (CRBS), Université de Strasbourg, Strasbourg, France
| | - Ysia Idoux-Gillet
- INSERM, Regenerative Nanomedicine UMR 1260, Centre de Recherche en Biomédecine de Strasbourg (CRBS), Université de Strasbourg, Strasbourg, France
| | - Guillaume Conzatti
- Faculty of Pharmacy, Universite de Strasbourg, Illkirch, Strasbourg, France
- INSERM, Regenerative Nanomedicine UMR 1260, Centre de Recherche en Biomédecine de Strasbourg (CRBS), Université de Strasbourg, Strasbourg, France
| | - Kifayat Ullah Shah
- Gomal Centre of Pharmaceutical Sciences (GCPS), Faculty of Pharmacy, Gomal University, Dera Ismail Khan, Pakistan
| | - Elise Perennes
- INSERM, Regenerative Nanomedicine UMR 1260, Centre de Recherche en Biomédecine de Strasbourg (CRBS), Université de Strasbourg, Strasbourg, France
| | - Thierry Vandamme
- Faculty of Pharmacy, Universite de Strasbourg, Illkirch, Strasbourg, France
- INSERM, Regenerative Nanomedicine UMR 1260, Centre de Recherche en Biomédecine de Strasbourg (CRBS), Université de Strasbourg, Strasbourg, France
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Chitosan-Coated Polymeric Silver and Gold Nanoparticles: Biosynthesis, Characterization and Potential Antibacterial Applications: A Review. Polymers (Basel) 2022; 14:polym14235302. [PMID: 36501695 PMCID: PMC9738229 DOI: 10.3390/polym14235302] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 11/29/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
Biosynthesized metal nanoparticles, especially silver and gold nanoparticles, and their conjugates with biopolymers have immense potential in various fields of science due to their enormous applications, including biomedical applications. Polymeric nanoparticles are particles of small sizes from 1 nm to 1000 nm. Among different polymeric nanoparticles, chitosan-coated silver and gold nanoparticles have gained significant interest from researchers due to their various biomedical applications, such as anti-cancer, antibacterial, antiviral, antifungal, anti-inflammatory technologies, as well as targeted drug delivery, etc. Multidrug-resistant pathogenic bacteria have become a serious threat to public health day by day. Novel, effective, and safe antibacterial agents are required to control these multidrug-resistant pathogenic microorganisms. Chitosan-coated silver and gold nanoparticles could be effective and safe agents for controlling these pathogens. It is proven that both chitosan and silver or gold nanoparticles have strong antibacterial activity. By the conjugation of biopolymer chitosan with silver or gold nanoparticles, the stability and antibacterial efficacy against multidrug-resistant pathogenic bacteria will be increased significantly, as well as their toxicity in humans being decreased. In recent years, chitosan-coated silver and gold nanoparticles have been increasingly investigated due to their potential applications in nanomedicine. This review discusses the biologically facile, rapid, and ecofriendly synthesis of chitosan-coated silver and gold nanoparticles; their characterization; and potential antibacterial applications against multidrug-resistant pathogenic bacteria.
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New Green Approaches in Nanoparticles Synthesis: An Overview. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27196472. [PMID: 36235008 PMCID: PMC9573382 DOI: 10.3390/molecules27196472] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/19/2022] [Accepted: 09/26/2022] [Indexed: 11/09/2022]
Abstract
Nanotechnology is constantly expanding, with nanomaterials being more and more used in common commercial products that define our modern life. Among all types of nanomaterials, nanoparticles (NPs) occupy an important place, considering the great amount that is produced nowadays and the diversity of their applications. Conventional techniques applied to synthesize NPs have some issues that impede them from being appreciated as safe for the environment and health. The alternative to these might be the use of living organisms or biological extracts that can be involved in the green approach synthesis of NPs, a process that is free of harmful chemicals, cost-effective and a low energy consumer. Several factors, including biological reducing agent concentration, initial precursor salt concentration, agitation, reaction time, pH, temperature and light, can influence the characteristics of biologically synthesized NPs. The interdependence between these reaction parameters was not explored, being the main impediment in the implementation of the biological method on an industrial scale. Our aim is to present a brief review that focuses on the current knowledge regarding how the aforementioned factors can control the size and shape of green-synthesized NPs. We also provide an overview of the biomolecules that were found to be suitable for NP synthesis. This work is meant to be a support for researchers who intend to develop new green approaches for the synthesis of NPs.
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Synthesis of Silver Nanoparticles in an Eco-friendly Way using Lannea coromandelica Aqueous Bark Extract. JURNAL KIMIA SAINS DAN APLIKASI 2022. [DOI: 10.14710/jksa.25.6.224-230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this present study, silver nanoparticles (AgNPs) were synthesized through an easy, rapid, and eco-friendly pathway using Lannea coromandelica aqueous bark extract. The obtained AgNPs were characterized using Ultraviolet-Visible (UV-Vis) spectrophotometer, Fourier Transform Infrared (FTIR), X-ray Diffraction (XRD), and Scanning Electron Microscope (SEM). The results indicated that the pH of colloidal AgNPs played a vital role in forming AgNPs. The pH ranges used in this study were 6, 8, 10, and 12. The formation of AgNPs was confirmed by observing the surface plasmon resonance (SPR) band at each pH and obtaining a wavelength of 430.50, 419.50, 418.50, and 410.00 nm. A comparison of the FTIR spectra of Lannea coromandelica aqueous bark extract and AgNPs showed the contribution of the O-H group in reducing silver ions. XRD diffractogram showed that AgNPs formed at 2θ = 37.8056o (1 1 1), 44.0345o (2 0 0), 64.3942o (2 2 0), dan 77.5003o (3 1 1) with face-centered cubic (FCC) crystal structure, and the average particle size was 22.5047 nm. SEM results showed that the nanoparticles have a non-uniform and irregular shape.
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Kumar M, Upadhyay LSB, Kerketta A, Vasanth D. Extracellular Synthesis of Silver Nanoparticles Using a Novel Bacterial Strain Kocuria rhizophila BR-1: Process Optimization and Evaluation of Antibacterial Activity. BIONANOSCIENCE 2022. [DOI: 10.1007/s12668-022-00968-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Parmar S, Kaur H, Singh J, Matharu AS, Ramakrishna S, Bechelany M. Recent Advances in Green Synthesis of Ag NPs for Extenuating Antimicrobial Resistance. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:1115. [PMID: 35407234 PMCID: PMC9000675 DOI: 10.3390/nano12071115] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/20/2022] [Accepted: 03/25/2022] [Indexed: 02/06/2023]
Abstract
Combating antimicrobial resistance (AMR) is an on-going global grand challenge, as recognized by several UN Sustainable Development Goals. Silver nanoparticles (Ag NPs) are well-known for their efficacy against antimicrobial resistance, and a plethora of green synthesis methodologies now exist in the literature. Herein, this review evaluates recent advances in biological approaches for Ag NPs, and their antimicrobial potential of Ag NPs with mechanisms of action are explored deeply. Moreover, short and long-term potential toxic effects of Ag NPs on animals, the environment, and human health are briefly discussed. Finally, we also provide a summary of the current state of the research and future challenges on a biologically mediated Ag-nanostructures-based effective platform for alleviating AMR.
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Affiliation(s)
- Simerjeet Parmar
- Department of Biotechnology, Sri Guru Granth Sahib World University, Fatehgarh Sahib 140406, India; (S.P.); (H.K.)
| | - Harwinder Kaur
- Department of Biotechnology, Sri Guru Granth Sahib World University, Fatehgarh Sahib 140406, India; (S.P.); (H.K.)
| | - Jagpreet Singh
- Department of Chemical Engineering, Chandigarh University, Gharuan, Mohali 140413, India
- University Centre for Research and Development, Chandigarh University, Gharuan, Mohali 140413, India
| | - Avtar Singh Matharu
- Department of Chemistry, Green Chemistry Centre of Excellence, University of York, York YO10 5DD, UK;
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, Centre for Nanotechnology & Sustainability, National University of Singapore, Singapore 117575, Singapore;
| | - Mikhael Bechelany
- Institut Européen des Membranes, IEM, UMR 5635, University of Montpellier, ENSCM, CNRS, 34000 Montpellier, France
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Andrade-Zavaleta K, Chacon-Laiza Y, Asmat-Campos D, Raquel-Checca N. Green Synthesis of Superparamagnetic Iron Oxide Nanoparticles with Eucalyptus globulus Extract and Their Application in the Removal of Heavy Metals from Agricultural Soil. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27041367. [PMID: 35209154 PMCID: PMC8880537 DOI: 10.3390/molecules27041367] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/03/2022] [Accepted: 02/13/2022] [Indexed: 11/16/2022]
Abstract
The green synthesis of metal oxide nanoparticles is presented as an excellent sustainable alternative for achieving nanostructures, with potential applications. This research provides important information regarding the influence of the type of solvent used in extracting organic reducing agents from E. globulus on the FeO NPs green synthesis protocol. A broad approach to characterization is presented, where UV-vis spectrophotometry suggests the presence of this type of nanoparticulate material. Likewise, the reduction mechanism was evaluated by FT-IR and the magnetic properties were evaluated by PPSM. In addition, characterizations were linked via elemental analysis (EDX), crystallographic characterization (XRD), electron microscopy (SEM/STEM), and Z potential to evaluate colloidal stability. The results show the influence of the type of solvent used for the extraction of organic reducing agents from E. globulus, and the effect on the synthesis of FeO NPs. In addition, the nanostructure material obtained showed excellent efficiency in the remediation of agricultural soil, eliminating metals such as Cr-VI, Cd, and, to a lesser extent, Pb.
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Affiliation(s)
- Karin Andrade-Zavaleta
- Facultad de Ingeniería, Ingeniería Ambiental, Universidad Privada del Norte, Trujillo 13011, Peru; (K.A.-Z.); (Y.C.-L.)
| | - Yessica Chacon-Laiza
- Facultad de Ingeniería, Ingeniería Ambiental, Universidad Privada del Norte, Trujillo 13011, Peru; (K.A.-Z.); (Y.C.-L.)
| | - David Asmat-Campos
- Dirección de Investigación, Innovación & Responsabilidad Social, Universidad Privada del Norte, Trujillo 13011, Peru
- Correspondence:
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Green Synthesis and Potential Antibacterial Applications of Bioactive Silver Nanoparticles: A Review. Polymers (Basel) 2022; 14:polym14040742. [PMID: 35215655 PMCID: PMC8879957 DOI: 10.3390/polym14040742] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/08/2022] [Accepted: 02/12/2022] [Indexed: 12/25/2022] Open
Abstract
Green synthesis of silver nanoparticles (AgNPs) using biological resources is the most facile, economical, rapid, and environmentally friendly method that mitigates the drawbacks of chemical and physical methods. Various biological resources such as plants and their different parts, bacteria, fungi, algae, etc. could be utilized for the green synthesis of bioactive AgNPs. In recent years, several green approaches for non-toxic, rapid, and facile synthesis of AgNPs using biological resources have been reported. Plant extract contains various biomolecules, including flavonoids, terpenoids, alkaloids, phenolic compounds, and vitamins that act as reducing and capping agents during the biosynthesis process. Similarly, microorganisms produce different primary and secondary metabolites that play a crucial role as reducing and capping agents during synthesis. Biosynthesized AgNPs have gained significant attention from the researchers because of their potential applications in different fields of biomedical science. The widest application of AgNPs is their bactericidal activity. Due to the emergence of multidrug-resistant microorganisms, researchers are exploring the therapeutic abilities of AgNPs as potential antibacterial agents. Already, various reports have suggested that biosynthesized AgNPs have exhibited significant antibacterial action against numerous human pathogens. Because of their small size and large surface area, AgNPs have the ability to easily penetrate bacterial cell walls, damage cell membranes, produce reactive oxygen species, and interfere with DNA replication as well as protein synthesis, and result in cell death. This paper provides an overview of the green, facile, and rapid synthesis of AgNPs using biological resources and antibacterial use of biosynthesized AgNPs, highlighting their antibacterial mechanisms.
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Biogenic production of silver nanoparticles from milk of Capra aegagrus hircus and mechanism of antibacterial activity on different bacteria. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-021-02095-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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