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Singh V, Pandit C, Pandit S, Roy A, Rustagi S, Awwad NS, Ibrahium HA, Anand J, Malik S, Yadav KK, Tambuwala M. Deciphering the Mechanisms and Biotechnological Implications of Nanoparticle Synthesis Through Microbial Consortia. J Basic Microbiol 2024; 64:e2400035. [PMID: 39004868 DOI: 10.1002/jobm.202400035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/27/2024] [Accepted: 03/12/2024] [Indexed: 07/16/2024]
Abstract
Nanomaterial synthesis is a growing study area because of its extensive range of uses. Nanoparticles' high surface-to-volume ratio and rapid interaction with various particles make them appealing for diverse applications. Traditional physical and chemical methods for creating metal nanoparticles are becoming outdated because they involve complex manufacturing processes, high energy consumption, and the formation of harmful by-products that pose major dangers to human health and the environment. Therefore, there is an increasing need to find alternative, cost-effective, dependable, biocompatible, and environmentally acceptable ways of producing nanoparticles. The process of synthesizing nanoparticles using microbes has become highly intriguing because of their ability to create nanoparticles of varying sizes, shapes, and compositions, each with unique physicochemical properties. Microbes are commonly used in nanoparticle production because they are easy to work with, can use low-cost materials, such as agricultural waste, are cheap to scale up, and can adsorb and reduce metal ions into nanoparticles through metabolic activities. Biogenic synthesis of nanoparticles provides a clean, nontoxic, ecologically friendly, and sustainable method using renewable ingredients for reducing metals and stabilizing nanoparticles. Nanomaterials produced by bacteria can serve as an effective pollution control method due to their many functional groups that can effectively target contaminants for efficient bioremediation, aiding in environmental cleanup. At the end of the paper, we will discuss the obstacles that hinder the use of biosynthesized nanoparticles and microbial-based nanoparticles. The paper aims to explore the sustainability of microorganisms in the burgeoning field of green nanotechnology.
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Affiliation(s)
- Vandana Singh
- Department of Microbiology, School of Allied health Sciences, Sharda University, Greater Noida, Uttar Pradesh, India
| | - Chetan Pandit
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, Greater Noida, Uttar Pradesh, India
| | - Soumya Pandit
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, Greater Noida, Uttar Pradesh, India
| | - Arpita Roy
- Department of Biotechnology, School of Engineering and Technology, Sharda University, Greater Noida, Uttar Pradesh, India
| | - Sarvesh Rustagi
- Department of Food Technology, Uttaranchal University, Dehradun, Uttarakhand, India
| | - Nasser S Awwad
- Department of Chemistry, King Khalid University, Abha, Saudi Arabia
| | - Hala A Ibrahium
- Department of Biology, Nuclear Materials Authority, El Maadi, Egypt
- Department of Semi Pilot Plant, Nuclear Materials Authority, El Maadi, Egypt
| | - Jigisha Anand
- Department of Biotechnology, Graphic Era Deemed to be University, Dehradun, Uttarakhand, India
| | - Sumira Malik
- Amity Institute of Biotechnology, Amity University Jharkhand, Ranchi, Jharkhand, India
- University Centre for Research and Development, University of Biotechnology, Chandigarh University, Mohali, Punjab, India
| | - Krishna Kumar Yadav
- Faculty of Science and Technology, Madhyanchal Professional University, Ratibad, Bhopal, India
- Environmental and Atmospheric Sciences Research Group, Scientific Research Center, Al-Ayen University, Thi-Qar, Nasiriyah, Iraq
| | - Murtaza Tambuwala
- RAK College of Pharmacy, RAK Medical and Health Sciences University, Ras Al Khaimah, UAE
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Duman H, Eker F, Akdaşçi E, Witkowska AM, Bechelany M, Karav S. Silver Nanoparticles: A Comprehensive Review of Synthesis Methods and Chemical and Physical Properties. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1527. [PMID: 39330683 PMCID: PMC11434896 DOI: 10.3390/nano14181527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2024] [Revised: 09/14/2024] [Accepted: 09/18/2024] [Indexed: 09/28/2024]
Abstract
Recently, silver nanoparticles (NPs) have attracted significant attention for being highly desirable nanomaterials in scientific studies as a result of their extraordinary characteristics. They are widely known as effective antibacterial agents that are capable of targeting a wide range of pathogens. Their distinct optical characteristics, such as their localized surface plasmon resonance, enlarge their utilization, particularly in the fields of biosensing and imaging. Also, the capacity to control their surface charge and modify them using biocompatible substances offers improved durability and specific interactions with biological systems. Due to their exceptional stability and minimal chemical reactivity, silver NPs are highly suitable for a diverse array of biological applications. These NPs are produced through chemical, biological, and physical processes, each of which has distinct advantages and disadvantages. Chemical and physical techniques often encounter issues with complicated purification, reactive substances, and excessive energy usage. However, eco-friendly biological approaches exist, even though they require longer processing times. A key factor affecting the stability, size distribution, and purity of the NPs is the synthesis process selected. This review focuses on how essential it is to choose the appropriate synthesis method in order to optimize the characteristics and use of silver NPs.
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Affiliation(s)
- Hatice Duman
- Department of Molecular Biology and Genetics, Çanakkale Onsekiz Mart University, Çanakkale 17100, Türkiye; (H.D.); (F.E.); (E.A.)
| | - Furkan Eker
- Department of Molecular Biology and Genetics, Çanakkale Onsekiz Mart University, Çanakkale 17100, Türkiye; (H.D.); (F.E.); (E.A.)
| | - Emir Akdaşçi
- Department of Molecular Biology and Genetics, Çanakkale Onsekiz Mart University, Çanakkale 17100, Türkiye; (H.D.); (F.E.); (E.A.)
| | - Anna Maria Witkowska
- Department of Food Biotechnology, Medical University of Bialystok, 15-089 Bialystok, Poland;
| | - Mikhael Bechelany
- Institut Européen des Membranes (IEM), UMR 5635, University of Montpellier, ENSCM, CNRS, F-34095 Montpellier, France
- Functional Materials Group, Gulf University for Science and Technology (GUST), Masjid Al Aqsa Street, Mubarak Al-Abdullah 32093, Kuwait
| | - Sercan Karav
- Department of Molecular Biology and Genetics, Çanakkale Onsekiz Mart University, Çanakkale 17100, Türkiye; (H.D.); (F.E.); (E.A.)
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Kashyap AS, Manzar N, Vishwakarma SK, Mahajan C, Dey U. Tiny but mighty: metal nanoparticles as effective antimicrobial agents for plant pathogen control. World J Microbiol Biotechnol 2024; 40:104. [PMID: 38372816 DOI: 10.1007/s11274-024-03911-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 01/29/2024] [Indexed: 02/20/2024]
Abstract
Metal nanoparticles (MNPs) have gained significant attention in recent years for their potential use as effective antimicrobial agents for controlling plant pathogens. This review article summarizes the recent advances in the role of MNPs in the control of plant pathogens, focusing on their mechanisms of action, applications, and limitations. MNPs can act as a broad-spectrum antimicrobial agent against various plant pathogens, including bacteria, fungi, and viruses. Different types of MNPs, such as silver, copper, zinc, iron, and gold, have been studied for their antimicrobial properties. The unique physicochemical properties of MNPs, such as their small size, large surface area, and high reactivity, allow them to interact with plant pathogens at the molecular level, leading to disruption of the cell membrane, inhibition of cellular respiration, and generation of reactive oxygen species. The use of MNPs in plant pathogen control has several advantages, including their low toxicity, selectivity, and biodegradability. However, their effectiveness can be influenced by several factors, including the type of MNP, concentration, and mode of application. This review highlights the current state of knowledge on the use of MNPs in plant pathogen control and discusses the future prospects and challenges in the field. Overall, the review provides insight into the potential of MNPs as a promising alternative to conventional chemical agents for controlling plant pathogens.
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Affiliation(s)
- Abhijeet Shankar Kashyap
- Plant Pathology Lab, ICAR-National Bureau of Agriculturally Important Microorganism, Mau, Uttar Pradesh, India.
| | - Nazia Manzar
- Plant Pathology Lab, ICAR-National Bureau of Agriculturally Important Microorganism, Mau, Uttar Pradesh, India.
| | - Shailesh Kumar Vishwakarma
- Plant Pathology Lab, ICAR-National Bureau of Agriculturally Important Microorganism, Mau, Uttar Pradesh, India
| | - Chetna Mahajan
- Department of Plant Pathology, Chaudhary Sarwan Kumar Himachal Pradesh Krishi Vishvavidyalaya, Palampur, HP, 176062, India
| | - Utpal Dey
- Krishi Vigyan Kendra (KVK)-Sepahijala, Central Agricultural University (Imphal), Sepahijala, Tripura, India
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Nagoth JA, John MS, Ramasamy KP, Mancini A, Zannotti M, Piras S, Giovannetti R, Rathnam L, Miceli C, Biondini MC, Pucciarelli S. Synthesis of Bioactive Nickel Nanoparticles Using Bacterial Strains from an Antarctic Consortium. Mar Drugs 2024; 22:89. [PMID: 38393060 PMCID: PMC10890439 DOI: 10.3390/md22020089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 02/11/2024] [Accepted: 02/13/2024] [Indexed: 02/25/2024] Open
Abstract
Marine microorganisms have been demonstrated to be an important source for bioactive molecules. In this paper we report the synthesis of Ni nanoparticles (NiSNPs) used as reducing and capping agents for five bacterial strains isolated from an Antarctic marine consortium: Marinomonas sp. ef1, Rhodococcus sp. ef1, Pseudomonas sp. ef1, Brevundimonas sp. ef1, and Bacillus sp. ef1. The NiSNPs were characterized by Ultraviolet-visible (UV-vis) spectroscopy, Dynamic Light Scattering (DLS), Transmission Electron Microscopy (TEM), X-ray diffraction (XRD) and Fourier Transform Infrared (FTIR) spectroscopic analysis. The maximum absorbances in the UV-Vis spectra were in the range of 374 nm to 422 nm, corresponding to the Surface plasmon resonance (SPR) of Nickel. DLS revealed NiSNPs with sizes between 40 and 45 nm. All NiSNPs were polycrystalline with a face-centered cubic lattice, as revealed by XRD analyses. The NiSNPs zeta potential values were highly negative. TEM analysis showed that the NiSNPs were either spherical or rod shaped, well segregated, and with a size between 20 and 50 nm. The FTIR spectra revealed peaks of amino acid and protein binding to the NiSNPs. Finally, all the NiSNPs possess significant antimicrobial activity, which may play an important role in the management of infectious diseases affecting human health.
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Affiliation(s)
- Joseph Amruthraj Nagoth
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (J.A.N.); (M.S.J.); (K.P.R.); (A.M.); (C.M.); (M.C.B.)
| | - Maria Sindhura John
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (J.A.N.); (M.S.J.); (K.P.R.); (A.M.); (C.M.); (M.C.B.)
- Department of Dermatology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Kesava Priyan Ramasamy
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (J.A.N.); (M.S.J.); (K.P.R.); (A.M.); (C.M.); (M.C.B.)
- Department of Ecology and Environmental Science, Umeå University, 90187 Umeå, Sweden
| | - Alessio Mancini
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (J.A.N.); (M.S.J.); (K.P.R.); (A.M.); (C.M.); (M.C.B.)
| | - Marco Zannotti
- Chemistry Interdisciplinary Project (ChIP), Chemistry Division, School of Science and Technology, University of Camerino, 62032 Camerino, Italy; (M.Z.); (S.P.); (R.G.)
| | - Sara Piras
- Chemistry Interdisciplinary Project (ChIP), Chemistry Division, School of Science and Technology, University of Camerino, 62032 Camerino, Italy; (M.Z.); (S.P.); (R.G.)
| | - Rita Giovannetti
- Chemistry Interdisciplinary Project (ChIP), Chemistry Division, School of Science and Technology, University of Camerino, 62032 Camerino, Italy; (M.Z.); (S.P.); (R.G.)
| | - Lydia Rathnam
- Department of Physics, Pondicherry University, Puducherry 605014, India;
| | - Cristina Miceli
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (J.A.N.); (M.S.J.); (K.P.R.); (A.M.); (C.M.); (M.C.B.)
| | - Maria Chiara Biondini
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (J.A.N.); (M.S.J.); (K.P.R.); (A.M.); (C.M.); (M.C.B.)
| | - Sandra Pucciarelli
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (J.A.N.); (M.S.J.); (K.P.R.); (A.M.); (C.M.); (M.C.B.)
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Solís-Sandí I, Cordero-Fuentes S, Pereira-Reyes R, Vega-Baudrit JR, Batista-Menezes D, Montes de Oca-Vásquez G. Optimization of the biosynthesis of silver nanoparticles using bacterial extracts and their antimicrobial potential. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2023; 40:e00816. [PMID: 38020726 PMCID: PMC10643114 DOI: 10.1016/j.btre.2023.e00816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 10/14/2023] [Accepted: 10/20/2023] [Indexed: 12/01/2023]
Abstract
In the present study, silver nanoparticles (AgNPs) were biosynthesized using the supernatant and the intracellular extract of Cupriavidus necator, Bacillus megaterium, and Bacillus subtilis. The characterization of the AgNPs was carried out using UV-Vis spectroscopy, FTIR, DLS and TEM. Resazurin microtiter-plate assay was used to determine the antimicrobial action of AgNPs against Escherichia coli. UV-Visible spectra showed peaks between 414 and 460 nm. TEM analysis revealed that the synthesized AgNPs showed mostly spherical shapes. DLS results determined sizes from 20.8 to 118.4 nm. The highest antimicrobial activity was obtained with the AgNPs synthesized with supernatant rather than those using the intracellular extract. Therefore, it was determined that the bacterial species, temperature, pH, and type of extract (supernatant or intracellular) influence the biosynthesis. This synthesis thus offers a simple, environmentally friendly, and low-cost method for the production of AgNPs, which can be used as antibacterial agents.
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Affiliation(s)
- Iván Solís-Sandí
- School of Biology, Tecnológico de Costa Rica, Campus Central, 159-7050 Cartago, Costa Rica
| | - Sara Cordero-Fuentes
- School of Chemistry, Universidad Nacional, Campus Omar Dengo, 86-3000 Heredia, Costa Rica
| | - Reinaldo Pereira-Reyes
- National Nanotechnology Laboratory, National Center for High Technology, 10109 Pavas, San José, Costa Rica
| | - José Roberto Vega-Baudrit
- National Nanotechnology Laboratory, National Center for High Technology, 10109 Pavas, San José, Costa Rica
- Laboratory of Polymer Science and Technology, School of Chemistry, Universidad Nacional, Campus Omar Dengo, 86-3000 Heredia, Costa Rica
| | - Diego Batista-Menezes
- National Nanotechnology Laboratory, National Center for High Technology, 10109 Pavas, San José, Costa Rica
| | - Gabriela Montes de Oca-Vásquez
- National Nanotechnology Laboratory, National Center for High Technology, 10109 Pavas, San José, Costa Rica
- Center for Sustainable Development Studies, Universidad Técnica Nacional, 1902-4050, Alajuela, Costa Rica
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Ramasamy KP, Mahawar L, Rajasabapathy R, Rajeshwari K, Miceli C, Pucciarelli S. Comprehensive insights on environmental adaptation strategies in Antarctic bacteria and biotechnological applications of cold adapted molecules. Front Microbiol 2023; 14:1197797. [PMID: 37396361 PMCID: PMC10312091 DOI: 10.3389/fmicb.2023.1197797] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 05/31/2023] [Indexed: 07/04/2023] Open
Abstract
Climate change and the induced environmental disturbances is one of the major threats that have a strong impact on bacterial communities in the Antarctic environment. To cope with the persistent extreme environment and inhospitable conditions, psychrophilic bacteria are thriving and displaying striking adaptive characteristics towards severe external factors including freezing temperature, sea ice, high radiation and salinity which indicates their potential in regulating climate change's environmental impacts. The review illustrates the different adaptation strategies of Antarctic microbes to changing climate factors at the structural, physiological and molecular level. Moreover, we discuss the recent developments in "omics" approaches to reveal polar "blackbox" of psychrophiles in order to gain a comprehensive picture of bacterial communities. The psychrophilic bacteria synthesize distinctive cold-adapted enzymes and molecules that have many more industrial applications than mesophilic ones in biotechnological industries. Hence, the review also emphasizes on the biotechnological potential of psychrophilic enzymes in different sectors and suggests the machine learning approach to study cold-adapted bacteria and engineering the industrially important enzymes for sustainable bioeconomy.
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Affiliation(s)
| | - Lovely Mahawar
- Department of Plant Physiology, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture, Nitra, Slovakia
| | - Raju Rajasabapathy
- Department of Marine Science, Bharathidasan University, Tiruchirappalli, Tamilnadu, India
| | | | - Cristina Miceli
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy
| | - Sandra Pucciarelli
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy
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Constantin M, Răut I, Suica-Bunghez R, Firinca C, Radu N, Gurban AM, Preda S, Alexandrescu E, Doni M, Jecu L. Ganoderma lucidum-Mediated Green Synthesis of Silver Nanoparticles with Antimicrobial Activity. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4261. [PMID: 37374445 DOI: 10.3390/ma16124261] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/30/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023]
Abstract
"Green chemistry" is a simple and easily reproductible method that provides nanoparticles characterized by better stability and good dispersion in an aqueous solution. Nanoparticles can be synthesized by algae, bacteria, fungi, and plant extracts. Ganoderma lucidum is a commonly used medicinal mushroom with distinctive biological properties, such as antibacterial, antifungal, antioxidant, anti-inflammatory, anticancer, etc. In this study, aqueous mycelial extracts of Ganoderma lucidum were used to reduce AgNO3 to form silver nanoparticles (AgNPs). The biosynthesized nanoparticles were characterized by UV-visible spectroscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR) analysis. The maximum UV absorption was obtained at 420 nm, which represents the specific surface plasmon resonance band for biosynthesized silver nanoparticles. SEM images showed particles as predominantly spherical, while FTIR spectroscopic studies illustrated the presence of functional groups that can support the reducing of ion Ag+ to Ag(0). XRD peaks ratified the presence of AgNPs. The antimicrobial effectiveness of synthesized nanoparticles was tested against Gram-positive and Gram-negative bacterial and yeasts strains. The silver nanoparticles were effective against pathogens, inhibiting their proliferation, and thus reducing the risk to the environment and to public health.
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Affiliation(s)
- Mariana Constantin
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 202 Independentei Spl., 060021 Bucharest, Romania
- Faculty of Pharmacy, Titu Maiorescu University, 16 Bd. Gh. Sincai, 040441 Bucharest, Romania
| | - Iuliana Răut
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 202 Independentei Spl., 060021 Bucharest, Romania
| | - Raluca Suica-Bunghez
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 202 Independentei Spl., 060021 Bucharest, Romania
| | - Cristina Firinca
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 202 Independentei Spl., 060021 Bucharest, Romania
- Faculty of Biology, University of Bucharest, Splaiul Independentei 91-95, 050095 Bucharest, Romania
| | - Nicoleta Radu
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 202 Independentei Spl., 060021 Bucharest, Romania
- Faculty of Biotechnology, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59 Mărăşti Boulevard, 011464 Bucharest, Romania
| | - Ana-Maria Gurban
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 202 Independentei Spl., 060021 Bucharest, Romania
| | - Silviu Preda
- Institute of Physical Chemistry "Ilie Murgulescu", 202 Splaiul Independentei Spl., 060021 Bucharest, Romania
| | - Elvira Alexandrescu
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 202 Independentei Spl., 060021 Bucharest, Romania
| | - Mihaela Doni
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 202 Independentei Spl., 060021 Bucharest, Romania
| | - Luiza Jecu
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 202 Independentei Spl., 060021 Bucharest, Romania
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Silver-Based Surface Plasmon Sensors: Fabrication and Applications. Int J Mol Sci 2023; 24:ijms24044142. [PMID: 36835553 PMCID: PMC9963732 DOI: 10.3390/ijms24044142] [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: 12/16/2022] [Revised: 02/13/2023] [Accepted: 02/15/2023] [Indexed: 02/22/2023] Open
Abstract
A series of novel phenomena such as optical nonlinear enhancement effect, transmission enhancement, orientation effect, high sensitivity to refractive index, negative refraction and dynamic regulation of low threshold can be generated by the control of surface plasmon (SP) with metal micro-nano structure and metal/material composite structure. The application of SP in nano-photonics, super-resolution imaging, energy, sensor detection, life science, and other fields shows an important prospect. Silver nanoparticles are one of the commonly used metal materials for SP because of their high sensitivity to refractive index change, convenient synthesis, and high controllable degree of shape and size. In this review, the basic concept, fabrication, and applications of silver-based surface plasmon sensors are summarized.
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Cekuolyte K, Gudiukaite R, Klimkevicius V, Mazrimaite V, Maneikis A, Lastauskiene E. Biosynthesis of Silver Nanoparticles Produced Using Geobacillus spp. Bacteria. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13040702. [PMID: 36839070 PMCID: PMC9965977 DOI: 10.3390/nano13040702] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/03/2023] [Accepted: 02/09/2023] [Indexed: 06/01/2023]
Abstract
Silver nanoparticles (AgNPs) are well known for their unique physical and chemical properties, which can be incorporated into a wide range of applications. The growing resistance of microorganisms to antimicrobial compounds promoted the use of AgNPs in antimicrobial therapy. AgNPs can be obtained using physical and chemical methods, but these technologies are highly unfriendly to nature and produce large amounts of side compounds (for example, sodium borohydride and N,N-dimethylformamide). Therefore, alternative technologies are required for obtaining AgNPs. This report focuses on the biosynthesis of silver nanoparticles through the reduction of Ag+ with the cell-free secretomes of four Geobacillus bacterial strains, namely, 18, 25, 95, and 612. Only a few studies that involved Geobacillus bacteria in the synthesis of metal nanoparticles, including AgNPs, have been reported to date. The silver nanoparticles synthesized through bio-based methods were characterized using UV-Vis spectroscopy, scanning electron microscopy (SEM), dynamic light scattering (DLS), and zeta potential measurements. UV-Vis spectroscopy showed a characteristic absorbance peak at 410-425 nm, indicative of AgNPs. SEM analysis confirmed that most nanoparticles were spherical. DLS analysis showed that the sizes of the obtained AgNPs were widely distributed, with the majority less than 100 nm in diameter, while the zeta potential values ranged from -25.7 to -31.3 mV and depended on the Geobacillus spp. strain.
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Affiliation(s)
- Kotryna Cekuolyte
- Institute of Biosciences, Life Sciences Center, Vilnius University, Sauletekis Avenue 7, LT-10257 Vilnius, Lithuania
| | - Renata Gudiukaite
- Institute of Biosciences, Life Sciences Center, Vilnius University, Sauletekis Avenue 7, LT-10257 Vilnius, Lithuania
| | - Vaidas Klimkevicius
- Institute of Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania
| | - Veronika Mazrimaite
- Institute of Biosciences, Life Sciences Center, Vilnius University, Sauletekis Avenue 7, LT-10257 Vilnius, Lithuania
| | - Andrius Maneikis
- Faculty of Electronics, Vilnius Gediminas Technical University, Sauletekis Avenue 11, LT-10223 Vilnius, Lithuania
| | - Egle Lastauskiene
- Institute of Biosciences, Life Sciences Center, Vilnius University, Sauletekis Avenue 7, LT-10257 Vilnius, Lithuania
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Thu HT, Anh LT, Phuc LH, Vinh LK, Tung NT, Phuong PH. Green preparation of carbon quantum dots and its silver nanoparticles composite against carbapenem-resistant Acinetobacter baumannii. APPLIED NANOSCIENCE 2022. [DOI: 10.1007/s13204-022-02712-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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