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Pavić V, Kovač-Andrić E, Ćorić I, Rebić S, Užarević Z, Gvozdić V. Antibacterial Efficacy and Characterization of Silver Nanoparticles Synthesized via Methanolic Extract of Fomes fomentarius L. Fr. Molecules 2024; 29:3961. [PMID: 39203038 PMCID: PMC11357466 DOI: 10.3390/molecules29163961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2024] [Revised: 08/16/2024] [Accepted: 08/21/2024] [Indexed: 09/03/2024] Open
Abstract
Green synthesis employs environmentally friendly, biodegradable substances for the production of nanomaterials. This study aims to develop an innovative method for synthesizing silver nanoparticles (AgNPs) using a methanolic extract of Fomes fomentarius L. Fr. as the reducing agent and to assess the potential antibacterial properties of the resulting nanoparticles. The successful synthesis of AgNPs was confirmed through characterization techniques such as UV-visible (UV-Vis) spectrophotometry, Fourier-transform infrared spectroscopy (FT-IR), and powder X-ray diffraction (PXRD). The UV-Vis analysis revealed an absorption peak at 423 nm, while FT-IR identified key phytochemical compounds involved in the reduction process. PXRD analysis indicated a face-centered cubic (fcc) structure with prominent peaks observed at 2θ = 38°, 44.6°, 64.6°, and 78°, confirming the crystalline nature of the AgNPs, with a crystallite diameter of approximately 24 nm, consistent with TEM analysis. The synthesized AgNPs demonstrated significant antibacterial activity, particularly against S. aureus, with higher efficacy against gram-positive bacteria.
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Affiliation(s)
- Valentina Pavić
- Department of Biology, University of Osijek, Cara Hadrijana 8A, 31000 Osijek, Croatia;
| | - Elvira Kovač-Andrić
- Department of Chemistry, University of Osijek, Cara Hadrijana 8A, 31000 Osijek, Croatia; (E.K.-A.); (S.R.)
| | - Ivan Ćorić
- Department of Laboratory Medicine and Pharmacy, Faculty of Medicine in Osijek, University of Osijek, Josipa Huttlera 4, 31000 Osijek, Croatia;
| | - Stella Rebić
- Department of Chemistry, University of Osijek, Cara Hadrijana 8A, 31000 Osijek, Croatia; (E.K.-A.); (S.R.)
| | - Zvonimir Užarević
- Faculty of Education, University of Osijek, Cara Hadrijana 10, 31000 Osijek, Croatia;
| | - Vlatka Gvozdić
- Department of Chemistry, University of Osijek, Cara Hadrijana 8A, 31000 Osijek, Croatia; (E.K.-A.); (S.R.)
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Chamaraja NA, Khan MM, Hemalatha HN, Rajendraprasad N, Prasanna DS. Ca-doped ZnO nanoparticles for MB dye degradation and adsorptive removal of tinidazole. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:710. [PMID: 38976119 DOI: 10.1007/s10661-024-12843-4] [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: 12/19/2023] [Accepted: 06/15/2024] [Indexed: 07/09/2024]
Abstract
Industrial dye degradation involves several processes by which dyes are broken down, ideally into innocuous products. Methylene blue (MB) is one of the most commonly employed dyes in the textile industry and is released into water in routine industry processes. These discharges lead to creating a nocuous nature for humans and animals. Drugs are also discharged into water bodies from various pharmaceutical industries. In these two contexts, in the present work, the green synthesis of calcium-doped zinc oxide nanoparticles (Ca-doped ZnO NPs) is achieved using the aqueous peel extract of Citrus limetta by the solution combustion technique. The structural, morphological, and optical properties of the synthesized Ca-doped ZnO NPs are investigated using XRD, FTIR, SEM, EDX, and UV-visible spectroscopy. The prepared NPs were subjected to photocatalytic degradation of MB dye under visible-light illumination, which shows ~ 95% dye degradation. The synthesized Ca-doped ZnO NPs were also employed to adsorb tinidazole (TDZ), a nitroimidazole antibiotic, from water samples. An excellent adsorptive capacity of the NPs was observed for selectively adsorbing the TDZ ~ 96.2%. The drug TDZ was found to have pseudo-second-order kinetics. The catalyst recycling proved its repeatability; removal of the dye reached up to 92% after three successive usages. Therefore, using waste Citrus limetta peel extract, the multifunctional Ca-doped ZnO NPs were synthesized, which maintained effective adsorption potential and photocatalytic abilities and could be used as an effective material for environmental remediation.
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Affiliation(s)
- N A Chamaraja
- Department of Chemistry, JSS Academy of Technical Education, (Affiliated to Visvesvaraya Technological University, Belagavi), Dr. Vishnuvardhan Road, Bengaluru, 560 060, India.
| | - Mohammad Mansoob Khan
- Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE, 1410, Brunei Darussalam
| | - H N Hemalatha
- Department of Civil Engineering, JSS Academy of Technical Education, (Affiliated to Visvesvaraya Technological University, Belagavi), Dr. Vishnuvardhan Road, Bengaluru, 560060, India
| | - N Rajendraprasad
- PG Department of Chemistry, JSS Research Centre, Recognized by the University of Mysore, JSS College of Arts, Commerce and Science, Ooty Road, Mysuru, India
| | - D S Prasanna
- Department of Applied Sciences, Visvesvaraya Technological University, Muddenahalli Campus, Chikkaballapur, 562 010, India
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Mondal MS, Paul A, Rhaman M. Recycling of silver nanoparticles from electronic waste via green synthesis and application of AgNPs-chitosan based nanocomposite on textile material. Sci Rep 2023; 13:13798. [PMID: 37612338 PMCID: PMC10447510 DOI: 10.1038/s41598-023-40668-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 08/16/2023] [Indexed: 08/25/2023] Open
Abstract
The main thrust of this project is the fabrication of silver nanoparticles (AgNPs) from electronic waste (PCB board) and applying it on 100% cotton fabric as an antimicrobial agent. The nanoparticle formation of silver was done by green synthesis way using an aqueous leaf extract of Eichhornia crassipes. Furthermore, chitosan was also applied to the fabric with silver nanoparticles by coating. FTIR and SEM tests characterized the fabricated silver nanoparticles, and antimicrobial tests were followed by the disc diffusion method. The SEM analysis showed an average particle size of 76.91 nm. The FTIR analysis showed the successful reduction of silver nanoparticles and the bonding with chitosan and cellulose. Besides, the EDX reports confirmed the existence of AgNPs by indicating a strong signal in the silver region. In addition, SEM characteristics analysis confirmed the uniform deposition of silver nanoparticles. Finally, the antimicrobial property was tested against gram-positive (Staphylococcus aureus) and gram-negative (Escherichia coli) bacteria. The antimicrobial result was found satisfactory in the case of green-synthesized recycled AgNPs. However, the effectiveness was not observed to be higher than green-synthesized pure AgNPs. In this study, the zone of inhibition of AgNPs was also compared to the reference antibiotics Ciprofloxacin.
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Affiliation(s)
- Moni Sankar Mondal
- Department of Textile Engineering, Khulna University of Engineering & Technology, Khulna, 9203, Bangladesh.
| | - Ayon Paul
- Department of Textile Engineering, Khulna University of Engineering & Technology, Khulna, 9203, Bangladesh
| | - Mukitur Rhaman
- Department of Textile Engineering, Khulna University of Engineering & Technology, Khulna, 9203, Bangladesh
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Ghosh B, Bose A, Parmanik A, Ch S, Paul M, Biswas S, Rath G, Bhattacharya D. Facile fabrication of Nishamalaki churna mediated silver nanoparticles with antibacterial application. Heliyon 2023; 9:e18788. [PMID: 37560713 PMCID: PMC10407210 DOI: 10.1016/j.heliyon.2023.e18788] [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: 04/11/2023] [Revised: 07/27/2023] [Accepted: 07/27/2023] [Indexed: 08/11/2023] Open
Abstract
Antimicrobial resistance (AMR) is one of the most serious threats to today's healthcare system. The prime factor behind increasing AMR is the formation of complex bacterial biofilms which acts as the protective shield between the bacterial cell and the antimicrobial drugs. Among various nanoformulations, green synthesized metallic silver nanoparticles are currently gaining research focus in safely breaking bacterial biofilms due to the inherent antimicrobial property of silver. In the current work, the aqueous extract of the ayurvedic formulation Nishamalaki churna is used to exhibit one pot green synthesis of silver nanoparticles. The physicochemical characteristics of Nishamalaki churna extract mediated AgNPs were evaluated using various analytical techniques, like UV-Visible spectrophotometer, FT-IR spectroscopy, SEM, XRD, DLS-Zeta potential analyzer etc. The synthesized spherical AgNPs were well formed within the size range of 30 nm to 80 nm. Furthermore, the synthesized AgNPs showed potent antibacterial effects against two primary AMR-causing bacterial species like Staphylococcus aureus and Pseudomonas aeruginosa with the successful destruction of their biofilm formation. Additionally, these AgNPs have shown profound antioxidant and anti-inflammatory activities as desirable add-on effects required by a prospective antibacterial agent.
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Affiliation(s)
- Bhavna Ghosh
- School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to Be University), Bhubaneswar, Odisha, 751003, India
- Sri Jayadev College of Pharmaceutical Sciences, Naharkanta, Via: Balianta, Bhubaneswar, Odisha, 752101, India
| | - Anindya Bose
- School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to Be University), Bhubaneswar, Odisha, 751003, India
| | - Ankita Parmanik
- School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to Be University), Bhubaneswar, Odisha, 751003, India
| | - Sanjay Ch
- Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus. Jawahar Nagar, Kapra Mandal. Medchal District, Telangana, 500 078, India
| | - Milan Paul
- Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus. Jawahar Nagar, Kapra Mandal. Medchal District, Telangana, 500 078, India
| | - Swati Biswas
- Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus. Jawahar Nagar, Kapra Mandal. Medchal District, Telangana, 500 078, India
| | - Goutam Rath
- School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to Be University), Bhubaneswar, Odisha, 751003, India
| | - Debapriya Bhattacharya
- Center for Biotechnology, Siksha O Anusandhan (Deemed to Be University), Bhubaneswar, Odisha, 751003, India
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Urcan AC, Criste AD, Szanto KI, Ștefan R, Zahan M, Muscă AS, Focsan M, Burtescu RF, Olah NK. Antimicrobial and Antiproliferative Activity of Green Synthesized Silver Nanoparticles Using Bee Bread Extracts. Pharmaceutics 2023; 15:1797. [PMID: 37513984 PMCID: PMC10383293 DOI: 10.3390/pharmaceutics15071797] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/15/2023] [Accepted: 06/20/2023] [Indexed: 07/30/2023] Open
Abstract
Bee bread (BB) is a fermented mixture of bee pollen, is rich in proteins, amino acids, fatty acids, polyphenols, flavonoids, as well as other bioactive compounds, and is considered functional food for humans. In this study, we explored an innovative green synthesis of colloidal silver nanoparticles, using BB extracts as reducing and stabilizing agents. A preliminary chemical characterization of the BB extracts was conducted. The plasmonic response of the as-synthesized silver nanoparticles (BB-AgNPs) was evaluated by UV-Vis spectroscopy, while their hydrodynamic diameter and zeta potential were investigated by dynamic light spectroscopy (DLS). Transmission electron microscopy (TEM) analysis pointed out polydisperse NPs with quasi-spherical shapes. The newly synthesized nanoparticles showed good antioxidant activity against the tested free radicals, DPPH, ABTS•+, and FRAP, the best results being obtained in the case of ABTS•+. BB-AgNPs exhibited good antibacterial activity on the tested Gram-positive and Gram-negative bacterial strains: herein S. aureus, B. cereus, E. faecalis, E. coli, P. aeruginosa, S. enteritidis, and on yeast C. albicans, respectively. The inhibition diameters varied between 7.67 ± 0.59 and 22.21 ± 1.06 mm, while the values obtained for minimum inhibitory concentration varied between 0.39 and 6.25 µg/mL. In vitro antiproliferative activity was tested on colon adenocarcinoma, ATCC HTB-37 cell line, and the results have shown that the green synthetized BB-AgNPs induced a substantial decrease in tumor cell viability in a dose-dependent manner with an IC50 ranging from 24.58 to 67.91 µg/mL. Consequently, more investigation is required to comprehend the processes of the cytotoxicity of AgNPs and develop strategies to mitigate their potentially harmful effects while harnessing their antimicrobial properties.
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Affiliation(s)
- Adriana Cristina Urcan
- Faculty of Animal Science and Biotechnologies, University of Agricultural Sciences and Veterinary Medicine, 3-5 Mănăştur Street, 400372 Cluj-Napoca, Romania
| | - Adriana Dalila Criste
- Faculty of Animal Science and Biotechnologies, University of Agricultural Sciences and Veterinary Medicine, 3-5 Mănăştur Street, 400372 Cluj-Napoca, Romania
| | - Karina Ioana Szanto
- Faculty of Animal Science and Biotechnologies, University of Agricultural Sciences and Veterinary Medicine, 3-5 Mănăştur Street, 400372 Cluj-Napoca, Romania
| | - Razvan Ștefan
- Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
| | - Marius Zahan
- Faculty of Animal Science and Biotechnologies, University of Agricultural Sciences and Veterinary Medicine, 3-5 Mănăştur Street, 400372 Cluj-Napoca, Romania
| | - Adriana Sebastiana Muscă
- Faculty of Animal Science and Biotechnologies, University of Agricultural Sciences and Veterinary Medicine, 3-5 Mănăştur Street, 400372 Cluj-Napoca, Romania
| | - Monica Focsan
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, Treboniu Laurian No. 42, 400271 Cluj-Napoca, Romania
| | | | - Neli Kinga Olah
- PlantExtrakt Ltd., Rădaia, 407059 Cluj-Napoca, Romania
- Faculty of Pharmacy, "Vasile Goldiş" Western University of Arad, 310414 Arad, Romania
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Kumar DG, Achar RR, Kumar JR, Amala G, Gopalakrishnan VK, Pradeep S, Shati AA, Alfaifi MY, Elbehairi SEI, Silina E, Stupin V, Manturova N, Shivamallu C, Kollur SP. Assessment of antimicrobial and anthelmintic activity of silver nanoparticles bio-synthesized from Viscum orientale leaf extract. BMC Complement Med Ther 2023; 23:167. [PMID: 37217985 DOI: 10.1186/s12906-023-03982-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 04/27/2023] [Indexed: 05/24/2023] Open
Abstract
BACKGROUND Viscum orientale is a largely used parasitic plant with traditional medicinal properties. They are considered to possess the medicinal properties of host tree which they grow on. It's a least explored plant with ethanopharmacological importance. As a result, the current work aimed to investigate the biological effects of Viscum orientale extract and silver nanoparticles (AgNPs) generated from it. METHODS AgNPs synthesized using Viscum orientale plant extract and analysed on time dependent series and was characterized using Ultra Violet UV-visible spectra, Fourier Transform Infrared Spectroscopy FTIR, X-ray diffraction (XRD), Energy Dispersive X-ray Spectroscopy (EDX), Scanning Electron Microscopy (SEM). Further using disc method anti-microbial assay was performed following antioxidation screening using 1,1-diphenyl-2-picryl-hydrazyl (DPPH), reducing power and nitric oxide content and heamgglutination with human blood. RESULTS On green synthesis using silver, the phyto contituents of plant Viscum orientale effectively reduced silver ions at 3-4 h of continuous stirring to form AgNPs. UV-vis spectra showed a typical peak of AgNPs at 480 nm. The FTIR analysis confirmed the covering of silver layers to bio-compounds of the extract. SEM analysis represented AgNPs as spherical morphologies ranging from 119-222 nm. AgNPs exhibited impressive zone of inhibition against Escherichia coli (8.1 ± 0.3 mm), Staphylococcus aureus (10.3 ± 0.3 mm), Bacillus subtilis (7.3 ± 0.3 mm), Bacillus cereus (8.2 ± 0.3 mm), Salmonella typhi (7.1 ± 0.2 mm). AgNps exhibited efficiency against DPPH at EC50 value of 57.60 µg/ml. and reducing power at EC50 of 53.42 µg/ml and nitric oxide scavenging of EC50 of 56.01 µg/ml concentration. Further, anthelmintic activity results showed synthesized nanoparticles significant reduction in the paralysis time to 5.4 ± 0.3 min and death time to 6.5 ± 0.6 min in contrast to the individual factors. On hemagglutination using AgNPs, above 80 µg/ml of concentration showed very significant effect on comparison with water extract. CONCLUSION Synthesized AgNPs using Viscum orientale water extract displayed versatile biological activity than individual extract. This study has forecasted a new path to explore more on this AgNPs for further research.
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Affiliation(s)
- Dugganaboyana Guru Kumar
- Division of Biochemistry, School of Life Sciences, JSS Academy of Higher Education and Research (Deemed to Be University), Sri Shivarathreeshwara Nagara, Mysuru, 570015, Karnataka, India.
| | - Raghu Ram Achar
- Division of Biochemistry, School of Life Sciences, JSS Academy of Higher Education and Research (Deemed to Be University), Sri Shivarathreeshwara Nagara, Mysuru, 570015, Karnataka, India.
| | - Jajur Ramanna Kumar
- Division of Biochemistry, School of Life Sciences, JSS Academy of Higher Education and Research (Deemed to Be University), Sri Shivarathreeshwara Nagara, Mysuru, 570015, Karnataka, India
| | - Ganamaedi Amala
- Division of Biochemistry, School of Life Sciences, JSS Academy of Higher Education and Research (Deemed to Be University), Sri Shivarathreeshwara Nagara, Mysuru, 570015, Karnataka, India
| | | | - Sushma Pradeep
- Department of Biotechnology and Bioinformatics, JSS Academy of Higher Education, Mysore, India
| | - Ali A Shati
- Biology Department, Faculty of Sciences, King Khalid University, Abha, Saudi Arabia
| | - Mohammad Y Alfaifi
- Biology Department, Faculty of Sciences, King Khalid University, Abha, Saudi Arabia
| | | | - Ekaterina Silina
- Department of Hospital Surgery, N.I. Pirogov Russian National Research Medical University (RNRMU), Moscow, 117 997, Russia
| | - Victor Stupin
- Department of Hospital Surgery, N.I. Pirogov Russian National Research Medical University (RNRMU), Moscow, 117 997, Russia
| | - Natalia Manturova
- Department of Hospital Surgery, N.I. Pirogov Russian National Research Medical University (RNRMU), Moscow, 117 997, Russia
| | - Chandan Shivamallu
- Department of Biotechnology and Bioinformatics, JSS Academy of Higher Education, Mysore, India.
| | - Shiva Prasad Kollur
- School of Physical Sciences, Amrita Vishwa Vidyapeetham, Mysuru Campus, Mysuru, 570 026, Karnataka, India.
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Moulana Kareem M, Hari Babu M, Vijaya Lakshmi DG. Anticancer, Antibacterial, Antioxidant, and Photo-catalytic Activities of Eco-Friendly Synthesized Ni Nanoparticles. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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8
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Repeated Use of Cyperus esculentus Tubers, Towards Sustainable Green Synthesis of Silver Nanoparticles. BIONANOSCIENCE 2022. [DOI: 10.1007/s12668-022-01032-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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9
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Green synthesis of Gold and Silver Nanoparticles: Updates on Research, Patents, and Future Prospects. OPENNANO 2022. [DOI: 10.1016/j.onano.2022.100076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Biosynthesis of Silver Nanoparticles Using Bersama engleriana Fruits Extracts and Their Potential Inhibitory Effect on Resistant Bacteria. CRYSTALS 2022. [DOI: 10.3390/cryst12071010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The absence of novel, safe, and effective bactericide is an urgent concern worldwide and remains a challenge in scientific communities. The unique proprieties of silver nanoparticles (SNPs) synthesized from plant extracts make them a suitable candidate to overcome these limitations. Herein, we synthesized SNPs from Bersama engleriana fruit (BEfr) extracts and determined their potential antibacterial activity and mode of action. SNPs were synthesized from BEfr methanolic fruit extracts at 25 and 70 °C, and the antibacterial effectiveness of SNPs against bacterial strains was investigated. The surface plasmon resonance peaked at 430.18 and 434.08 nm, respectively, for SNPs synthesized at 25 and 70 °C, confirming SNPs synthesis. BEfr-SNPs had minimum inhibitory concentrations (MIC) range of 0.234 to >50 µg/mL, which was 30-fold greater than extract alone (MIC of 500 µg/mL). BEfr-SNPs-25 °C was potent against six bacterial strains (S. aureus, S. enterica, MRS. aureus, K. pneumonia, and S. pyogenes), with MIC range of 0.339 to 6.25 µg/mL. The mode of action of BEfr-SNPs-25 °C was achieved by an MRSA bacteria strain outer membrane and DNA nucleotide linkage. These results suggest that our synthesized SNPs, especially BEfr-SNPs-25 °C, demonstrated an enhanced antibacterial effect and could be potential candidates for bacterial infection treatment.
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Biosynthesis of Bimetallic Cu-Ag Nanocomposites and Evaluation of their Electrocatalytic, Antibacterial and Anti-Cancerous Activity. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2022. [DOI: 10.22207/jpam.16.2.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Bimetallic nanocomposites have evolved into a significant smart material in the recent past. Owing to the growing interest, we herein report the biosynthesis of bimetallic silver doped copper (Cu-Ag) nanocomposites using green methods by utilizing aqueous extract of Carica papaya leaves. The optical property and the surface morphology of the nanoparticles were determined by using various analytical techniques like Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Analysis (EDAX) and Transmission Electron Microscopy (TEM). The redox behaviour of the bimetallic nanocomposites was studied using Cyclic Voltammetry (CV) with platinum electrode in 0.1M KCl solution at different scan rates and concentrations. The FTIR revealed the presence of active components of the leaf extract which played the roles of surfactants, stabilizing, capping, and reducing agents. Similarly, SEM with EDAX exhibited the presence of spherically agglomerated Cu-Ag nanocomposites and TEM images revealed a particle size of 20 nm. The gradual increase in peak current was observed in CV with increase in the scan rates and concentrations apparently. The bimetallic nanocomposites showed potential anti-bacterial, anti-cancerous activity and the reports are provided in detail.
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Verma V, Al-Dossari M, Singh J, Rawat M, Kordy MGM, Shaban M. A Review on Green Synthesis of TiO2 NPs: Synthesis and Applications in Photocatalysis and Antimicrobial. Polymers (Basel) 2022; 14:polym14071444. [PMID: 35406317 PMCID: PMC9002645 DOI: 10.3390/polym14071444] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 03/21/2022] [Accepted: 03/25/2022] [Indexed: 11/24/2022] Open
Abstract
Nanotechnology is a fast-expanding area with a wide range of applications in science, engineering, health, pharmacy, and other fields. Nanoparticles (NPs) are frequently prepared via a variety of physical and chemical processes. Simpler, sustainable, and cost-effective green synthesis technologies have recently been developed. The synthesis of titanium dioxide nanoparticles (TiO2 NPs) in a green/sustainable manner has gotten a lot of interest in the previous quarter. Bioactive components present in organisms such as plants and bacteria facilitate the bio-reduction and capping processes. The biogenic synthesis of TiO2 NPs, as well as the different synthesis methods and mechanistic perspectives, are discussed in this review. A range of natural reducing agents including proteins, enzymes, phytochemicals, and others, are involved in the synthesis of TiO2 NPs. The physics of antibacterial and photocatalysis applications were also thoroughly discussed. Finally, we provide an overview of current research and future concerns in biologically mediated TiO2 nanostructures-based feasible platforms for industrial applications.
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Affiliation(s)
- Vishal Verma
- Department of Nanotechnology, Sri Guru Granth Sahib World University, Fatehgarh Sahib 140406, India; (V.V.); (M.R.)
| | - Mawaheb Al-Dossari
- Department of Physics, Dhahran Aljanoub, King Khalid University, Abha 61421, Saudi Arabia;
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia
| | - Jagpreet Singh
- Department of Chemical Engineering, Chandigarh University, Gharuan, Mohali 140413, India
- Centre for Research and Development, Chandigarh University, Gharuan, Mohali 140413, India
- Correspondence: or
| | - Mohit Rawat
- Department of Nanotechnology, Sri Guru Granth Sahib World University, Fatehgarh Sahib 140406, India; (V.V.); (M.R.)
| | - Mohamed G. M. Kordy
- Nanophotonics and Applications (NPA) Lab, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt; (M.G.M.K.); (M.S.)
- Biochemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef 62521, Egypt
| | - Mohamed Shaban
- Nanophotonics and Applications (NPA) Lab, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt; (M.G.M.K.); (M.S.)
- Department of Physics, Faculty of Science, Islamic University of Madinah, Al-Madinah Al-Munawarah 42351, Saudi Arabia
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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: 68] [Impact Index Per Article: 34.0] [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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Karthik C, Punnaivalavan KA, Prabha SP, Caroline DG. Multifarious global flora fabricated phytosynthesis of silver nanoparticles: a green nanoweapon for antiviral approach including SARS-CoV-2. INTERNATIONAL NANO LETTERS 2022; 12:313-344. [PMID: 35194512 PMCID: PMC8853038 DOI: 10.1007/s40089-022-00367-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 01/24/2022] [Indexed: 12/11/2022]
Abstract
The progressive research into the nanoscale level upgrades the higher end modernized evolution with every field of science, engineering, and technology. Silver nanoparticles and their broader range of application from nanoelectronics to nano-drug delivery systems drive the futuristic direction of nanoengineering and technology in contemporary days. In this review, the green synthesis of silver nanoparticles is the cornerstone of interest over physical and chemical methods owing to its remarkable biocompatibility and idiosyncratic property engineering. The abundant primary and secondary plant metabolites collectively as multifarious phytochemicals which are more peculiar in the composition from root hair to aerial apex through various interspecies and intraspecies, capable of reduction, and capping with the synthesis of silver nanoparticles. Furthermore, the process by which intracellular, extracellular biological macromolecules of the microbiota reduce with the synthesis of silver nanoparticles from the precursor molecule is also discussed. Viruses are one of the predominant infectious agents that gets faster resistance to the antiviral therapies of traditional generations of medicine. We discuss the various stages of virus targeting of cells and viral target through drugs. Antiviral potential of silver nanoparticles against different classes and families of the past and their considerable candidate for up-to-the-minute need of complete addressing of the fulminant and opportunistic global pandemic of this millennium SARS-CoV2, illustrated through recent silver-based formulations under development and approval for countering the pandemic situation. Graphical abstract
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Affiliation(s)
- C. Karthik
- Department of Biotechnology, St. Joseph’s College of Engineering, Old Mamallapuram Road, Chennai, 600119 Tamil Nadu India
| | - K. A. Punnaivalavan
- Department of Biotechnology, St. Joseph’s College of Engineering, Old Mamallapuram Road, Chennai, 600119 Tamil Nadu India
| | - S. Pandi Prabha
- Department of Biotechnology, Sri Venkateswara College of Engineering, Sriperumbudur Taluk, Chennai, 602117 Tamil Nadu India
| | - D. G. Caroline
- Department of Biotechnology, St. Joseph’s College of Engineering, Old Mamallapuram Road, Chennai, 600119 Tamil Nadu India
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Green Biosynthesis, Antioxidant, Antibacterial, and Anticancer Activities of Silver Nanoparticles of Luffa acutangula Leaf Extract. BIOMED RESEARCH INTERNATIONAL 2021; 2021:5125681. [PMID: 34631882 PMCID: PMC8494549 DOI: 10.1155/2021/5125681] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 08/23/2021] [Accepted: 09/01/2021] [Indexed: 01/18/2023]
Abstract
Studies on green biosynthesis of newly engineered nanoparticles for their prominent medicinal applications are being the torch-bearing concerns of the state-of-the-art research strategies. In this concern, we have engineered the biosynthesized Luffa acutangula silver nanoparticles of flavonoid O-glycosides in the anisotropic form isolated from aqueous leave extracts of Luffa acutangula, a popular traditional and ayurvedic plant in south-east Asian countries. These were structurally confirmed by Ultraviolet-visible (UV-Vis), Fourier transform infrared spectroscopy accessed with attenuated total reflection (FTIR-ATR) spectral analyses followed by the scanning electron microscopic (SEM) and the X-ray diffraction (XRD) crystallographic studies and found them with the face-centered cubic (fcc) structure. Medicinally, we have explored their significant antioxidant (DPPH and ABTS assays), antibacterial (disc diffusion assay on E. coli, S. aureus, B. subtilis, S. fecilis, and S. boydii), and anticancer (MTT assay on MCF-7, MDA-MB-231, U87, and DBTRG cell lines) potentialities which augmented the present investigation. The molecular docking analysis of title compounds against 3NM8 (DPPH) and 1DNU (ABTS) proteins for antioxidant activity; 5FGK (Gram-Positive Bacteria) and 1AB4 (Gram-Negative Bacteria) proteins for antibacterial activity; and 4GBD (MCF-7), 5FI2 (MDA-MB-231), 1D5R (U87), and 5TIJ (DBTRG) proteins for anticancer activity has affirmed the promising ligand-protein binding interactions among the hydroxy groups of the title compounds and aspartic acid of the concerned enzymatic proteins. The binding energy varying from -9.1645 to -7.7955 for Cosmosioside (1, Apigenin-7-glucoside) and from -9.2690 to -7.8306 for Cynaroside (2, Luteolin-7-glucoside) implies the isolated compounds as potential bioactive compounds. In addition, the performed studies like QSAR, ADMET, bioactivity properties, drug scores, and toxicity risks confirmed them as potential drug candidates and aspartic acid receptor antagonists. This research auxiliary augmented the existing array of phytological nanomedicines with new drug candidates that are credible with multiple bioactivities.
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Singhal M, Chatterjee S, Kumar A, Syed A, Bahkali AH, Gupta N, Nimesh S. Exploring the Antibacterial and Antibiofilm Efficacy of Silver Nanoparticles Biosynthesized Using Punica granatum Leaves. Molecules 2021; 26:5762. [PMID: 34641304 PMCID: PMC8510064 DOI: 10.3390/molecules26195762] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 09/17/2021] [Accepted: 09/20/2021] [Indexed: 11/16/2022] Open
Abstract
The current research work illustrates an economical and rapid approach towards the biogenic synthesis of silver nanoparticles using aqueous Punica granatum leaves extract (PGL-AgNPs). The optimization of major parameters involved in the biosynthesis process was done using Box-Behnken Design (BBD). The effects of different independent variables (parameters), namely concentration of AgNO3, temperature and ratio of extract to AgNO3, on response viz. particle size and polydispersity index were analyzed. As a result of experiment designing, 17 reactions were generated, which were further validated experimentally. The statistical and mathematical approaches were employed on these reactions in order to interpret the relationship between the factors and responses. The biosynthesized nanoparticles were initially characterized by UV-vis spectrophotometry followed by physicochemical analysis for determination of particle size, polydispersity index and zeta potential via dynamic light scattering (DLS), SEM and EDX studies. Moreover, the determination of the functional group present in the leaves extract and PGL-AgNPs was done by FTIR. Antibacterial and antibiofilm efficacies of PGL-AgNPs against Gram-positive and Gram-negative bacteria were further determined. The physicochemical studies suggested that PGL-AgNPs were round in shape and of ~37.5 nm in size with uniform distribution. Our studies suggested that PGL-AgNPs exhibit potent antibacterial and antibiofilm properties.
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Affiliation(s)
- Monisha Singhal
- Department of Biotechnology, IIS (Deemed to be University), Gurukul Marg, SFS, Mansarovar, Jaipur 302020, India; (M.S.); (S.C.)
| | - Sreemoyee Chatterjee
- Department of Biotechnology, IIS (Deemed to be University), Gurukul Marg, SFS, Mansarovar, Jaipur 302020, India; (M.S.); (S.C.)
| | - Ajeet Kumar
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, NY 13699-5814, USA;
| | - Asad Syed
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia; (A.S.); (A.H.B.)
| | - Ali H. Bahkali
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia; (A.S.); (A.H.B.)
| | - Nidhi Gupta
- Department of Biotechnology, IIS (Deemed to be University), Gurukul Marg, SFS, Mansarovar, Jaipur 302020, India; (M.S.); (S.C.)
| | - Surendra Nimesh
- Department of Biotechnology, School of Life Sciences, Central University of Rajasthan, Ajmer 305817, India
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Ankegowda VM, Kollur SP, Prasad SK, Pradeep S, Dhramashekara C, Jain AS, Prasad A, Srinivasa C, Sridhara Setty PB, Gopinath SM, S. RP, Bahkali AH, Syed A, Shivamallu C. Phyto-Mediated Synthesis of Silver Nanoparticles Using Terminalia chebula Fruit Extract and Evaluation of Its Cytotoxic and Antimicrobial Potential. Molecules 2020; 25:molecules25215042. [PMID: 33143044 PMCID: PMC7662631 DOI: 10.3390/molecules25215042] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/15/2020] [Accepted: 10/20/2020] [Indexed: 11/17/2022] Open
Abstract
The increasing interest in developing potent non-toxic drugs in medicine is widening the opportunities for studying the usage of nanostructures in the treatment of various diseases. The present work reports a method for a facile and an eco-friendly synthesis of silver nanoparticles (AgNPs) using Terminalia chebula fruit extract (TCE). The obtained AgNPs was characterized by using different spectroscopic and microscopic techniques. The analysis of the results revealed that the as-obtained AgNPs have spherical morphology with an average diameter of 22 nm. Furthermore, the preliminary bioactivity evaluations revealed that the bio-conjugation of AgNPs, using TCE, significantly enhanced the antibacterial and anti-breast cancer potentials of the latter. The antibacterial activity of the as-prepared AgNPs showed that B. subtilis was more sensitive towards the AgNPs, followed by P. aeruginosa; while, E. coli and S. mutans showed comparatively minimal sensitivity toward the AgNPs. The IC50 values of TCE, AgNPs and TCE + AgNPs treatment of MCF-7 were found to be 17.53, 14.25 and 6.484 µg/mL, respectively. Therefore, it can be ascertained that the bio-conjugation may provide a headway with regard to the therapeutic employment of T. chebula, upon mechanistically understanding the basis of observed antibacterial and anticancer activities.
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Affiliation(s)
- Veena Malligere Ankegowda
- Department of Chemistry, Bangalore Institute of Technology, K.R. Road, V.V. Puram, Karnataka, Bangalore 560 004, India;
| | - Shiva Prasad Kollur
- Department of Sciences, Amrita School of Arts and Sciences, Amrita Vishwa Vidyapeetham, Mysuru Campus, Karnataka 570 026, India
- Correspondence: (S.P.K.); (A.S.); (C.S.)
| | - Shashanka K. Prasad
- Department of Biotechnology and Bioinformatics, School of Life Sciences, JSS Academy of Higher Education and Research, Mysuru, Karnataka 570 015, India; (S.K.P.); (S.P.); (C.D.)
| | - Sushma Pradeep
- Department of Biotechnology and Bioinformatics, School of Life Sciences, JSS Academy of Higher Education and Research, Mysuru, Karnataka 570 015, India; (S.K.P.); (S.P.); (C.D.)
| | - Chandan Dhramashekara
- Department of Biotechnology and Bioinformatics, School of Life Sciences, JSS Academy of Higher Education and Research, Mysuru, Karnataka 570 015, India; (S.K.P.); (S.P.); (C.D.)
| | - Anisha S. Jain
- Department of Microbiology and Tissue Culture, School of Life Sciences, JSS Academy of Higher Education and Research, Mysuru, Karnataka 570 015, India; (A.S.J.)
| | - Ashwini Prasad
- Department of Microbiology and Tissue Culture, School of Life Sciences, JSS Academy of Higher Education and Research, Mysuru, Karnataka 570 015, India; (A.S.J.)
| | - Chandrashekar Srinivasa
- Department of Biotechnology, Davangere University, Shivagangotri, Davangere, Karnataka 577 007, India; (C.S.); (P.B.S.S.); (S.M.G.)
| | - Poojitha B. Sridhara Setty
- Department of Biotechnology, Davangere University, Shivagangotri, Davangere, Karnataka 577 007, India; (C.S.); (P.B.S.S.); (S.M.G.)
| | - S. M. Gopinath
- Department of Biotechnology, Davangere University, Shivagangotri, Davangere, Karnataka 577 007, India; (C.S.); (P.B.S.S.); (S.M.G.)
| | - Rajendra Prasad S.
- Department of Chemistry, Davangere University, Shivagangotri, Davangere, Karnataka 577 007, India;
| | - Ali H. Bahkali
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;
| | - Asad Syed
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;
- Correspondence: (S.P.K.); (A.S.); (C.S.)
| | - Chandan Shivamallu
- Department of Biotechnology and Bioinformatics, School of Life Sciences, JSS Academy of Higher Education and Research, Mysuru, Karnataka 570 015, India; (S.K.P.); (S.P.); (C.D.)
- Correspondence: (S.P.K.); (A.S.); (C.S.)
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Ramteke L, Gawali P, Jadhav BL, Chopade BA. Comparative Study on Antibacterial Activity of Metal Ions, Monometallic and Alloy Noble Metal Nanoparticles Against Nosocomial Pathogens. BIONANOSCIENCE 2020. [DOI: 10.1007/s12668-020-00771-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Synthesis of Silver Nanoparticles from Caryota urens Against Dengue Causing Vector Aedes aegypti. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2020. [DOI: 10.22207/jpam.14.2.29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Catalytic peroxygen activation by biosynthesized iron nanoparticles for enhanced degradation of Congo red dye. ADV POWDER TECHNOL 2019. [DOI: 10.1016/j.apt.2019.08.034] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Majoumouo MS, Sibuyi NRS, Tincho MB, Mbekou M, Boyom FF, Meyer M. Enhanced Anti-Bacterial Activity Of Biogenic Silver Nanoparticles Synthesized From Terminalia mantaly Extracts. Int J Nanomedicine 2019; 14:9031-9046. [PMID: 31819417 PMCID: PMC6875292 DOI: 10.2147/ijn.s223447] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 09/06/2019] [Indexed: 01/06/2023] Open
Abstract
Background The global increase in outbreaks and mortality rates associated with multi-drug-resistant (MDR) bacteria is a major health concern and calls for alternative treatments. Natural-derived products have shown potential in combating the most dreadful diseases, and therefore serve as an effective source of bioactive compounds that can be used as anti-bacterial agents. These compounds are able to reduce metal ions and cap nanoparticles to form biogenic nanoparticles (NPs) with remarkable anti-bacterial activities. This study explores the use of Terminalia mantaly (TM) extracts for the synthesis of biogenic silver NPs (TM-AgNPs) and the evaluation of their antibacterial activity. Methods TM-AgNPs were synthetized by the reduction of AgNO3 with aqueous and methanolic TM extracts. UV-visible (UV-vis) spectrophotometry, Dynamic Light Scattering (DLS), Transmission Electron Microscopy, and Fourier Transform Infrared (FTIR) analyses were used to characterise the TM-AgNPs. Anti-bacterial activity of the TM extracts and TM-AgNPs was evaluated against eight bacterial strains using the broth microdilution assay. The growth inhibitory kinetics of the bio-active TM-AgNPs was assessed on susceptible strains for a period of 8 hrs. Results Polycrystalline biogenic AgNPs with anisotropic shapes and diameter range of 11 to 83 nm were synthesized from the TM extracts. The biogenic TM-AgNPs showed significant antibacterial activity compared to their respective extracts. The MIC values for TM-AgNPs and extracts were 3 and 125 µg/mL, respectively. Biogenic AgNPs synthesised from the aqueous TM leaf extract at 25°C (aTML-AgNPs-25°C) showed significant antibacterial activity against all the bacterial strains tested in this study. Their bactericidal effect was particularly higher against the Streptococcus pneumoniae and Haemophilus influenzae. Conclusion This study demonstrated the ability of TM extracts to synthesize biogenic AgNPs. The NPs synthesized from the aqueous TM extracts demonstrated higher antibacterial activity against the tested microorganisms compared to the methanolic extracts. Studies are underway to identify the phytochemicals involved in NP synthesis and their mechanism of action.
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Affiliation(s)
- Michele Stella Majoumouo
- Antimicrobial & Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Studies, Department of Biochemistry, University of Yaoundé 1, Yaoundé, Cameroon.,Department of Science and Technology (DST)/Mintek Nanotechnology Innovation Centre, Biolabels Node, Department of Biotechnology, University of the Western Cape, Bellville, South Africa
| | - Nicole Remaliah Samantha Sibuyi
- Department of Science and Technology (DST)/Mintek Nanotechnology Innovation Centre, Biolabels Node, Department of Biotechnology, University of the Western Cape, Bellville, South Africa
| | - Marius Belmondo Tincho
- Department of Science and Technology (DST)/Mintek Nanotechnology Innovation Centre, Biolabels Node, Department of Biotechnology, University of the Western Cape, Bellville, South Africa
| | - Michele Mbekou
- Antimicrobial & Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Studies, Department of Biochemistry, University of Yaoundé 1, Yaoundé, Cameroon
| | - Fabrice Fekam Boyom
- Antimicrobial & Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Studies, Department of Biochemistry, University of Yaoundé 1, Yaoundé, Cameroon
| | - Mervin Meyer
- Department of Science and Technology (DST)/Mintek Nanotechnology Innovation Centre, Biolabels Node, Department of Biotechnology, University of the Western Cape, Bellville, South Africa
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Das P, Karankar VS. New avenues of controlling microbial infections through anti-microbial and anti-biofilm potentials of green mono-and multi-metallic nanoparticles: A review. J Microbiol Methods 2019; 167:105766. [PMID: 31706910 DOI: 10.1016/j.mimet.2019.105766] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 10/31/2019] [Accepted: 10/31/2019] [Indexed: 12/19/2022]
Abstract
Nanoparticles synthesized through the green route deserve special mention because this green technology is not only energy-efficient and cost-effective but also amenable to the environment. Various biological resources have been used for the generation of these 'green nanoparticles'. Biological wastes have also been focused in this direction thereby promoting the value of waste. Reports indicate that green nanoparticles exhibit remarkable antimicrobial activitiesboth singly as well as in combination with standard antibiotics. The current phenomenon of multi-drug resistance has resulted due to indiscriminate administration of high-doses of antibiotics followed by significant toxicity. In the face of this emergence of drug-resistant microbesthe efficacy of green nanoparticles might prove greatly beneficial. Microbial biofilm is another hurdle in the effective treatment of diseases as the microorganismsbeing embedded in the meshwork of the biofilmevade the antimicrobial agents. Nanoparticles may act as a ray of hope on the face of this challenge tooas they not only destroy the biofilms but also lessen the doses of antibiotics requiredwhen administered in combination with the nanoparticles. It should be further noted that the resistance mechanisms exhibited by the microorganisms seem not that relevant for nanoparticles. The current review, to the best of our knowledgefocuses on the structures of these green nanoparticles along with their biomedical potentials. It is interesting to note how a variety of structures are generated by using resources like microbes or plants or plant products and how the structure affects their activities. This study might pave the way for further development in this arena and future work may be taken up in identifying the detailed mechanism by which 'green' synthesis empowers nanoparticles to kill pathogenic microbes.
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Affiliation(s)
- Palashpriya Das
- National Institute of Pharmaceutical Education and Research, Hajipur 844102, Bihar, India.
| | - Vijayshree S Karankar
- National Institute of Pharmaceutical Education and Research, Hajipur 844102, Bihar, India
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Plant-based metal and metal alloy nanoparticle synthesis: a comprehensive mechanistic approach. JOURNAL OF MATERIALS SCIENCE 2019. [DOI: 10.1007/s10853-019-04121-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Green Synthesis of Potent Antimicrobial Silver Nanoparticles Using Different Plant Extracts and Their Mixtures. Processes (Basel) 2019. [DOI: 10.3390/pr7080510] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Nano-sized metals have been introduced as a promising solution for microbial resistance to antimicrobial agents. Silver nanoparticles (AgNPs) have been proven to possess good antimicrobial activity. Green synthesis of AgNPs has been reported as safe, low cost and ecofriendly. This methodology uses extracts originating from different plants to reduce silver ions from AgNO3 into nano-sized particles. In this study, extracts of several plants including ginger, garlic, capsicum and their mixtures were successfully used to produce AgNPs. Numerous spectroscopic, light scattering and microscopic techniques were employed to characterize the synthesized AgNPs. Agar well diffusion assay was performed to investigate the antimicrobial activity of AgNPs. The biosynthesized AgNPs have spherical shape with a size range of 20–70 nm. Garlic extract, pure or in mixture with ginger extract, generated AgNPs of the smallest size. The presence of the plant-origin capping agents surrounding AgNPs was proven by Fourier-transform infrared spectroscopy. The AgNPs, at a concentration of 50 µg/mL, demonstrated potent antimicrobial activity against Staphyloccocus aureus, Escherichia coli and Candida albicans as indicated by the zones of. Our results revealed that AgNPs having potent antimicrobial activity could be prepared using different pure plant extracts and their mixtures.
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Keshari AK, Srivastava R, Singh P, Yadav VB, Nath G. Antioxidant and antibacterial activity of silver nanoparticles synthesized by Cestrum nocturnum. J Ayurveda Integr Med 2018; 11:37-44. [PMID: 30120058 PMCID: PMC7125370 DOI: 10.1016/j.jaim.2017.11.003] [Citation(s) in RCA: 150] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Revised: 10/11/2017] [Accepted: 11/02/2017] [Indexed: 11/25/2022] Open
Abstract
Background Silver nanoparticles are toxic to bacteria and have widespread application in different research areas. Objective The aim of this study was to synthesize silver nanoparticles using an aqueous leaf extract of Cestrum nocturnum and to test its antioxidant and antibacterial activities. Materials and methods The silver nanoparticles were synthesized by addition of 20 ml extract (8% w/v) with 180 ml silver nitrate solution (1 mM). The synthesis of silver nanoparticles was confirmed by UV–Vis spectrophotometer. The silver nanoparticles were characterized by X-ray diffractometer, Transmission Electron Microscope, Scanning Electron Microscope and Fourier Transform Infra-Red spectroscopy. The antioxidant property of silver nanoparticles was analyzed by the 2, 2-diphenyl-1-picrylhydrazyl, hydrogen peroxide, hydroxyl radical and superoxide radical scavenging methods. The bacteriostatic and bactericidal activity of silver nanoparticles against Escherichiacoli, Enterococcusfaecalis, and Salmonellatyphi was determined using bacterial growth inhibition method. The antibacterial sensitivity and Minimum Inhibitory Concentration (MIC) of silver nanoparticles was determined against the bacteria. Results The results confirmed that the silver nanoparticles synthesized by C.nocturnum extract were crystalline in nature, average particle size was 20 nm and were mostly spherical in shape. The antioxidant methods confirmed that the silver nanoparticles have more antioxidant activity as compared to vitamin C. The silver nanoparticles have strong antibacterial (maximum Vibrio cholerae and minimum E. faecalis) activity. The MIC value of silver nanoparticles was 16 μg/ml (Citrobacter), 4 μg/ml (E. faecalis), 16 μg/ml (S. typhi), 8 μg/ml (E. coli), 8 μg/ml (Proteusvulgaris), and 16 μg/ml (V. cholerae). Conclusion Green synthesized silver nanoparticles have strong antioxidant and antibacterial activity due to the presence of bioactive molecules on the surface of silver nanoparticles. This study focuses on synthesis of silver nanoparticles from medicinal plant in nature. The medicinal plant is rich in antioxidant property. This study will help the researcher to uncover the antibacterial activity of silver nanoparticles.
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Affiliation(s)
- Anand Kumar Keshari
- Department of Biochemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi, UP 221005, India
| | - Ragini Srivastava
- Department of Biochemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi, UP 221005, India.
| | - Payal Singh
- Department of Biochemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi, UP 221005, India
| | - Virendra Bahadur Yadav
- Department of Microbiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, UP 221005, India
| | - Gopal Nath
- Department of Microbiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, UP 221005, India
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Garg S, Yadav M, Chandra A, Sapra S, Gahlawat S, Ingole PP, Todea M, Bardos E, Pap Z, Hernadi K. Facile Green Synthesis of BiOBr Nanostructures with Superior Visible-Light-Driven Photocatalytic Activity. MATERIALS 2018; 11:ma11081273. [PMID: 30042360 PMCID: PMC6117687 DOI: 10.3390/ma11081273] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 07/19/2018] [Accepted: 07/20/2018] [Indexed: 11/16/2022]
Abstract
Novel green bismuth oxybromide (BiOBr-G) nanoflowers were successfully synthesized via facile hydrolysis route using an Azadirachta indica (Neem plant) leaf extract and concurrently, without the leaf extract (BiOBr-C). The Azadirachta indica leaf extract was employed as a sensitizer and stabilizer for BiOBr-G, which significantly expanded the optical window and boosted the formation of photogenerated charge carriers and transfer over the BiOBr-G surface. The photocatalytic performance of both samples was investigated for the degradation of methyl orange (MO) and phenol (Ph) under the irradiation of visible light. The leaf extract mediated BiOBr-G photocatalyst displayed significantly higher photocatalytic activity when compared to BiOBr-C for the degradation of both pollutants. The degradation rate of MO and Ph by BiOBr-G was found to be nearly 23% and 16% more when compared to BiOBr-C under visible light irradiation, respectively. The substantial increase in the photocatalytic performance of BiOBr-G was ascribed to the multiple synergistic effects between the efficient solar energy harvesting, narrower band gap, high specific surface area, porosity, and effective charge separation. Furthermore, BiOBr-G displayed high stability for five cycles of photocatalytic activity, which endows its practical application as a green photocatalyst in the long run.
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Affiliation(s)
- Seema Garg
- Department of Chemistry, Amity Institute of Applied Sciences, Amity University, Sector-125, Noida 201313, Uttar Pradesh, India.
| | - Mohit Yadav
- Department of Chemistry, Amity Institute of Applied Sciences, Amity University, Sector-125, Noida 201313, Uttar Pradesh, India.
- Amity Institute of Nanotechnology, Amity University, Sector-125, Noida 201313, Uttar Pradesh, India.
| | - Amrish Chandra
- Amity Institute of Pharmacy, Amity University, Sector-125, Noida 201313, Uttar Pradesh, India.
| | - Sameer Sapra
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India.
| | - Soniya Gahlawat
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India.
| | - Pravin P Ingole
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India.
| | - Milica Todea
- Nanostructured Materials and Bio-Nano-Interfaces Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babeș-Bolyai University, Cluj-Napoca 400271, Romania.
- Department of Molecular Sciences, Faculty of Medicine, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca 400012, Romania.
| | - Eniko Bardos
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich tér 1, H-6720 Szeged, Hungary.
| | - Zsolt Pap
- Nanostructured Materials and Bio-Nano-Interfaces Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babeș-Bolyai University, Cluj-Napoca 400271, Romania.
- Institute of Environmental Science and Technology, University of Szeged, Tisza Lajos krt. 103, H-6720 Szeged, Hungary.
| | - Klara Hernadi
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich tér 1, H-6720 Szeged, Hungary.
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Guntur SR, Kumar NS, Hegde MM, Dirisala VR. In Vitro Studies of the Antimicrobial and Free-Radical Scavenging Potentials of Silver Nanoparticles Biosynthesized From the Extract of Desmostachya bipinnata. ANALYTICAL CHEMISTRY INSIGHTS 2018; 13:1177390118782877. [PMID: 30013309 PMCID: PMC6039906 DOI: 10.1177/1177390118782877] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 05/03/2018] [Indexed: 12/12/2022]
Abstract
The aim of this study was to perform green synthesis of silver nanoparticles (AgNPs) from the leaf extract of Desmostachya bipinnata (Dharba), a medicinally important herb which is widely used across India. Synthesized AgNPs were analyzed by UV-Visible spectroscopy, X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDAX). The results have confirmed that green synthesis of AgNPs leads to the fabrication of sphere-shaped particles with a diameter of 53 nm. Furthermore, these AgNPs were subjected to antioxidant and antimicrobial studies against gram-negative and gram-positive bacteria, where AgNPs at a concentration of 20 mg/mL showed highest zone of inhibition. Synthesized AgNPs were evaluated for their antioxidant activity by 1, 1-diphenyl-2-picryl hydrazyl radical (DPPH), H2O2, and superoxide inhibiting assays; increasing concentration has showed increase in scavenging ability. Cell toxicity was assessed on HepG2 cell lines, and synthesized nanoparticles at a concentration of 128 μg/mL produced significant reduction in viability of Hep cells (P < .05). The availability of Dharba throughout the year and the eco-friendly approach in the synthesis of AgNPs coupled with bioactivity has demonstrated its potential as a novel biomaterial which can be used for various biomedical applications.
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Affiliation(s)
- Sitaramanjaneya Reddy Guntur
- Department of Biomedical Engineering, Vignan's Foundation for Science, Technology & Research (Deemed to be University), Guntur, India
| | - Ns Sampath Kumar
- Department of Biotechnology, Vignan's Foundation for Science, Technology & Research (Deemed to be University), Guntur, India
| | - Manasa M Hegde
- Department of Nanotechnology, Rajiv Gandhi Institute of Technology, Bangalore, India
| | - Vijaya R Dirisala
- Department of Biotechnology, Vignan's Foundation for Science, Technology & Research (Deemed to be University), Guntur, India
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28
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Escárcega-González CE, Garza-Cervantes JA, Vázquez-Rodríguez A, Montelongo-Peralta LZ, Treviño-González MT, Díaz Barriga Castro E, Saucedo-Salazar EM, Chávez Morales RM, Regalado Soto DI, Treviño González FM, Carrazco Rosales JL, Cruz RV, Morones-Ramírez JR. In vivo antimicrobial activity of silver nanoparticles produced via a green chemistry synthesis using Acacia rigidula as a reducing and capping agent. Int J Nanomedicine 2018; 13:2349-2363. [PMID: 29713166 PMCID: PMC5910796 DOI: 10.2147/ijn.s160605] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Introduction One of the main issues in the medical field and clinical practice is the development of novel and effective treatments against infections caused by antibiotic-resistant bacteria. One avenue that has been approached to develop effective antimicrobials is the use of silver nanoparticles (Ag-NPs), since they have been found to exhibit an efficient and wide spectrum of antimicrobial properties. Among the main drawbacks of using Ag-NPs are their potential cytotoxicity against eukaryotic cells and the latent environmental toxicity of their synthesis methods. Therefore, diverse green synthesis methods, which involve the use of environmentally friendly plant extracts as reductive and capping agents, have become attractive to synthesize Ag-NPs that exhibit antimicrobial effects against resistant bacteria at concentrations below toxicity thresholds for eukaryotic cells. Purpose In this study, we report a green one-pot synthesis method that uses Acacia rigidula extract as a reducing and capping agent, to produce Ag-NPs with applications as therapeutic agents to treat infections in vivo. Materials and methods The Ag-NPs were characterized using transmission electron microscopy (TEM), high-resolution TEM, selected area electron diffraction, energy-dispersive spectroscopy, ultraviolet–visible, and Fourier transform infrared. Results We show that Ag-NPs are spherical with a narrow size distribution. The Ag-NPs show antimicrobial activities in vitro against Gram-negative (Escherichia coli, Pseudomonas aeruginosa, and a clinical multidrug-resistant strain of P. aeruginosa) and Gram-positive (Bacillus subtilis) bacteria. Moreover, antimicrobial effects of the Ag-NPs, against a resistant P. aeruginosa clinical strain, were tested in a murine skin infection model. The results demonstrate that the Ag-NPs reported in this work are capable of eradicating pathogenic resistant bacteria in an infection in vivo. In addition, skin, liver, and kidney damage profiles were monitored in the murine infection model, and the results demonstrate that Ag-NPs can be used safely as therapeutic agents in animal models. Conclusion Together, these results suggest the potential use of Ag-NPs, synthesized by green chemistry methods, as therapeutic agents against infections caused by resistant and nonresistant strains.
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Affiliation(s)
- Carlos Enrique Escárcega-González
- Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Pedro de Alba, S/N, San Nicolás de los Garza, Nuevo León, México.,Centro de Investigación en Biotecnología y Nanotecnología, Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, Parque de Investigación e Innovación Tecnológica, Apodaca, Nuevo León, México
| | - J A Garza-Cervantes
- Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Pedro de Alba, S/N, San Nicolás de los Garza, Nuevo León, México.,Centro de Investigación en Biotecnología y Nanotecnología, Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, Parque de Investigación e Innovación Tecnológica, Apodaca, Nuevo León, México
| | - A Vázquez-Rodríguez
- Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Pedro de Alba, S/N, San Nicolás de los Garza, Nuevo León, México.,Centro de Investigación en Biotecnología y Nanotecnología, Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, Parque de Investigación e Innovación Tecnológica, Apodaca, Nuevo León, México
| | - Liliana Zulem Montelongo-Peralta
- Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Pedro de Alba, S/N, San Nicolás de los Garza, Nuevo León, México.,Centro de Investigación en Biotecnología y Nanotecnología, Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, Parque de Investigación e Innovación Tecnológica, Apodaca, Nuevo León, México
| | - M T Treviño-González
- Universidad Autónoma de Nuevo León, Facultad de Ingeniería Mecánica y Eléctrica, Pedro de Alba, S/N, San Nicolás de los Garza, Nuevo León, México
| | | | | | - R M Chávez Morales
- Departamento de Fisiología y Farmacología, Centro de Ciencias Básicas, Universidad Autónoma de Aguascalientes, Colonia Ciudad Universitaria, Aguascalientes, México
| | - D I Regalado Soto
- Departamento de Fisiología y Farmacología, Centro de Ciencias Básicas, Universidad Autónoma de Aguascalientes, Colonia Ciudad Universitaria, Aguascalientes, México
| | - F M Treviño González
- Departamento de Fisiología y Farmacología, Centro de Ciencias Básicas, Universidad Autónoma de Aguascalientes, Colonia Ciudad Universitaria, Aguascalientes, México
| | - J L Carrazco Rosales
- Departamento de Microbiología, Centro de Ciencias Básicas, Universidad Autónoma de Aguascalientes, Colonia Ciudad Universitaria, Aguascalientes, Mexico
| | - Rocío Villalobos Cruz
- Departamento de Microbiología, Centro de Ciencias Básicas, Universidad Autónoma de Aguascalientes, Colonia Ciudad Universitaria, Aguascalientes, Mexico
| | - José Rubén Morones-Ramírez
- Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Pedro de Alba, S/N, San Nicolás de los Garza, Nuevo León, México.,Centro de Investigación en Biotecnología y Nanotecnología, Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, Parque de Investigación e Innovación Tecnológica, Apodaca, Nuevo León, México
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29
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Shobana C, Rangasamy B, Poopal RK, Renuka S, Ramesh M. Green synthesis of silver nanoparticles using Piper nigrum: tissue-specific bioaccumulation, histopathology, and oxidative stress responses in Indian major carp Labeo rohita. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:11812-11832. [PMID: 29446018 DOI: 10.1007/s11356-018-1454-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 01/31/2018] [Indexed: 06/08/2023]
Abstract
The aim of the present investigation is to assess the sublethal toxicity of biologically synthesized silver nanoparticles (Ag NPs) in Indian major carp Labeo rohita. Ag NPs used in the study were synthesized by using AgNO3 with aqueous leaf extract of Piper nigrum. Median lethal concentration (LC50) of synthesized Ag NPs was determined for 96 h (25 μg/L); 2.5 μg/L (1/10th LC50) and 5 μg/L (1/5th LC50) were taken as sublethal concentrations to evaluate the toxicity for 35 days. The results of the TEM, SEM, and EDX analyses revealed that Ag NPs were considerably accumulated in the gill, liver, and kidney of fish at both concentrations (2.5 and 5 μg/L). Consequently, the activity of the antioxidant enzymes, SOD and CAT, was significantly (P < 0.05) decreased in the gill, liver, and kidney when compared to the control group during the study period. However, lipid peroxidase (LPO) activity in the gill, liver, and kidney was significantly (P < 0.05) increased, and the result concluded a possible sign of free radical-induced oxidative stress in Ag NP-exposed fish than the sham-exposed individuals. The histopathological study also confirmed the alterations such as degeneration of lamella, lifting of lamellar epithelium, hepatic necrosis, pyknotic nuclei, increased intracellular space, and shrinkage of glomerulus elicited by Ag NPs in the gill, liver, and kidney of Labeo rohita with two different concentrations. The findings of the present study revealed that green synthesis of Ag NPs from Piper nigrum at sublethal concentrations leads to accumulation of Ag, oxidative stress, and histopathological alterations in the target organs of the fish, Labeo rohita.
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Affiliation(s)
- Chellappan Shobana
- Unit of Toxicology, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - Basuvannan Rangasamy
- Unit of Toxicology, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - Rama Krishnan Poopal
- Unit of Toxicology, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
- Environmental Toxicology and Toxicogenomics Laboratory, Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, India
| | - Sivashankar Renuka
- Unit of Toxicology, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - Mathan Ramesh
- Unit of Toxicology, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India.
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30
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Narasaiah P, Mandal BK, Nallani Chakravarthula S. Synthesis of gold nanoparticles by cotton peels aqueous extract and their catalytic efficiency for the degradation of dyes and antioxidant activity. IET Nanobiotechnol 2018. [DOI: 10.1049/iet-nbt.2017.0039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Palajonna Narasaiah
- Department of ChemistrySchool of Advanced SciencesVIT UniversityVellorec14Tamil NaduIndia
| | - Badal Kumar Mandal
- Department of ChemistrySchool of Advanced SciencesVIT UniversityVellorec14Tamil NaduIndia
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31
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Oliver S, Wagh H, Liang Y, Yang S, Boyer C. Enhancing the antimicrobial and antibiofilm effectiveness of silver nanoparticles prepared by green synthesis. J Mater Chem B 2018; 6:4124-4138. [DOI: 10.1039/c8tb00907d] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Water soluble catechin oligomers produce small (8.5 nm) silver nanoparticles with high antimicrobial and antibiofilm efficacy.
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Affiliation(s)
- Susan Oliver
- Australian Centre for NanoMedicine (ACN)
- School of Chemical Engineering
- University of New South Wales
- Sydney
- Australia
| | - Harsha Wagh
- Centre for Advanced Macromolecular Design (CAMD)
- School of Chemical Engineering
- University of New South Wales
- Sydney
- Australia
| | - Yuanli Liang
- Centre for Advanced Macromolecular Design (CAMD)
- School of Chemical Engineering
- University of New South Wales
- Sydney
- Australia
| | - Shuang Yang
- Centre for Advanced Macromolecular Design (CAMD)
- School of Chemical Engineering
- University of New South Wales
- Sydney
- Australia
| | - Cyrille Boyer
- Australian Centre for NanoMedicine (ACN)
- School of Chemical Engineering
- University of New South Wales
- Sydney
- Australia
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32
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Syahirah Kamarudin N, Jusoh R, Dina Setiabudi H, Fateha Sukor N. Photodegradation of methylene blue using phyto-mediated synthesis of silver nanoparticles: effect of calcination treatment. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.matpr.2018.07.059] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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33
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Rajeshkumar S, Bharath L. Mechanism of plant-mediated synthesis of silver nanoparticles – A review on biomolecules involved, characterisation and antibacterial activity. Chem Biol Interact 2017. [DOI: 10.1016/j.cbi.2017.06.019] [Citation(s) in RCA: 194] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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34
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Economical synthesis of silver nanoparticles using leaf extract of Acalypha hispida and its application in the detection of Mn(II) ions. J Adv Res 2017; 8:561-568. [PMID: 28765792 PMCID: PMC5526512 DOI: 10.1016/j.jare.2017.07.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 07/07/2017] [Accepted: 07/07/2017] [Indexed: 11/30/2022] Open
Abstract
This study was focused on the synthesis of silver nanoparticles using Acalypha hispida leaf extract and the characterization of the particles using UV–Vis spectroscopy, XRD, FT-IR, and TEM. The results showed the formation of silver nanoparticles, crystalline in nature, with an average size of 20–50 nm. The leaf extract components were analyzed with GC–MS and exhibited a high content of Phytol (40.52%), n-Hexadecanoic acid (9.67%), 1,2,3-Benzenetriol (7.04%), α-d-Mannofuranoside methyl (6.22%), and d-Allose (4.45%). The optimization and statistical investigation of reaction parameters were studied and maximum yield with suitable properties of silver nanoparticles was obtained at leaf extract volume (0.5 mL), the concentration of silver nitrate (1.75 mM), and reaction temperature (50 °C). The method of detecting Mn2+ ions using the colloidal silver nanoparticles was discussed. The minimum and maximum detection limit were found to be 50 and 200 µM of Mn(II) ions, respectively. Thus, the obtained results encourage the use of economical synthesis of silver nanoparticles in the development of nanosensors to detect the pollutants present in industrial effluents.
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35
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Karthika V, Arumugam A. Synthesis and characterization of MWCNT/TiO
2
/Au nanocomposite for photocatalytic and antimicrobial activity. IET Nanobiotechnol 2017; 11:113-118. [DOI: 10.1049/iet-nbt.2016.0072] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Affiliation(s)
- Viswanathan Karthika
- Department of Nanoscience and TechnologyAlagappa UniversityKaraikudi 630 003Tamil NaduIndia
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36
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Edison TNJI, Atchudan R, Sethuraman MG, Lee YR. Supercapacitor performance of carbon supported Co 3 O 4 nanoparticles synthesized using Terminalia chebula fruit. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2016.09.021] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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37
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Dauthal P, Mukhopadhyay M. Noble Metal Nanoparticles: Plant-Mediated Synthesis, Mechanistic Aspects of Synthesis, and Applications. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.6b00861] [Citation(s) in RCA: 242] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Preeti Dauthal
- Department of Chemical Engineering, S.V. National Institute of Technology, Surat-395007, Gujarat, India
| | - Mausumi Mukhopadhyay
- Department of Chemical Engineering, S.V. National Institute of Technology, Surat-395007, Gujarat, India
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38
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Goudarzi M, Mir N, Mousavi-Kamazani M, Bagheri S, Salavati-Niasari M. Biosynthesis and characterization of silver nanoparticles prepared from two novel natural precursors by facile thermal decomposition methods. Sci Rep 2016; 6:32539. [PMID: 27581681 PMCID: PMC5007519 DOI: 10.1038/srep32539] [Citation(s) in RCA: 125] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 08/11/2016] [Indexed: 01/09/2023] Open
Abstract
In this work, two natural sources, including pomegranate peel extract and cochineal dye were employed for the synthesis of silver nanoparticles. The natural silver complex from pomegranate peel extract resulted in nano-sized structures through solution-phase method, but this method was not efficient for cochineal dye-silver precursor and the as-formed products were highly agglomerated. Therefore, an alternative facile solid-state approach was investigated as for both natural precursors and the results showed successful production of well-dispersed nanoparticles with narrow size distribution for cochineal dye-silver precursor. The products were characterized by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Energy dispersive X-ray microanalysis (EDX), and Transmission Electron Microscopy (TEM).
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Affiliation(s)
- Mojgan Goudarzi
- Young Researchers and Elites Club, Arak Branch, Islamic Azad University, Arak, Iran
| | - Noshin Mir
- Department of Chemistry, University of Zabol, P. O. Box 98615-538, Zabol, Islamic Republic of Iran
| | | | - Samira Bagheri
- Nanotechnology &Catalysis Research Centre (NANOCAT), IPS Building, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Masoud Salavati-Niasari
- Institute of Nano Science and Nano Technology, University of Kashan, Kashan, P. O. Box. 87317-51167, I. R. Iran
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39
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Synthesis and Catalytic Evaluation of Silver Nanoparticles Synthesized with Aloysia triphylla Leaf Extract. J CLUST SCI 2016. [DOI: 10.1007/s10876-016-1062-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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40
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Mashwani ZUR, Khan MA, Khan T, Nadhman A. Applications of plant terpenoids in the synthesis of colloidal silver nanoparticles. Adv Colloid Interface Sci 2016; 234:132-141. [PMID: 27181393 DOI: 10.1016/j.cis.2016.04.008] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 04/27/2016] [Accepted: 04/29/2016] [Indexed: 12/13/2022]
Abstract
Green chemistry is the design of chemical products and processes that reduce or eliminate the generation of hazardous substances. Since the last few years, natural products especially plant secondary metabolites have been extensively explored for their potency to synthesize silver nanoparticles (AgNPs). The plant-based AgNPs are safer, energy efficient, eco-friendly, and less toxic than chemically synthesized counterparts. The secondary metabolites, ubiquitously found in plants especially the terpenoid-rich essential oils, have a significant role in AgNPs synthesis. Terpenoids belong to the largest family of natural products and are found in all kinds of organisms. Their involvement in the synthesis of plant-based AgNPs has got much attention in the recent years. The current article is not meant to provide an exhaustive overview of green synthesis of nanoparticles, but to present the pertinent role of plant terpenoids in the biosynthesis of AgNPs, as capping and reducing agents for development of uniform size and shape AgNPs. An emphasis on the important role of FTIR in the identification and elucidation of major functional groups in terpenoids for AgNPs synthesis has also been reviewed in this manuscript. It was found that no such article is available that has discussed the role of plant terpenoids in the green synthesis of AgNPs.
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Naghdi M, Taheran M, Brar SK, Verma M, Surampalli RY, Valero JR. Green and energy-efficient methods for the production of metallic nanoparticles. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2015; 6:2354-76. [PMID: 26734527 PMCID: PMC4685792 DOI: 10.3762/bjnano.6.243] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 11/26/2015] [Indexed: 05/24/2023]
Abstract
In the last decade, researchers paid great attention to the concept of "Green Chemistry", which aims at development of efficient methods for the synthesis of nanoparticles (NPs) in terms of the least possible impact on human life and environment. Generally, several reagents including precursors, reducing agents, stabilizing agents and solvents are used for the production of NPs and in some cases, energy is needed to reach the optimum temperature for reduction. Therefore, to develop a green approach, researchers had the opportunity to investigate eco-friendly reagents and new energy transfer techniques. In order to substitute the harmful reagents with green ones, researchers worked on different types of saccharides, polyols, carboxylic acids, polyoxometalates and extracts of various plants that can play the role of reducers, stabilizers or solvents. Also, there are some reports on using ultraviolet (UV), gamma and microwave irradiation that are capable of reducing and provide uniform heating. According to the literature, it is possible to use green reagents and novel energy transfer techniques for production of NPs. However, these new synthesis routes should be optimized in terms of performance, cost, product quality (shape and size distribution) and scale-up capability. This paper presents a review on most of the employed green reagents and new energy transfer techniques for the production of metallic NPs.
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Affiliation(s)
- Mitra Naghdi
- INRS-ETE, Université du Québec, 490, Rue de la Couronne, Québec G1K 9A9, Canada
| | - Mehrdad Taheran
- INRS-ETE, Université du Québec, 490, Rue de la Couronne, Québec G1K 9A9, Canada
| | - Satinder Kaur Brar
- INRS-ETE, Université du Québec, 490, Rue de la Couronne, Québec G1K 9A9, Canada
| | - M Verma
- CO2 Solutions Inc., 2300, rue Jean-Perrin, Québec, Québec G2C 1T9 Canada
| | - R Y Surampalli
- Department of Civil Engineering, University of Nebraska-Lincoln, N104 SEC PO Box 886105, Lincoln, NE 68588-6105, USA
| | - J R Valero
- INRS-ETE, Université du Québec, 490, Rue de la Couronne, Québec G1K 9A9, Canada
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Joy Prabu H, Johnson I. Plant-mediated biosynthesis and characterization of silver nanoparticles by leaf extracts of Tragia involucrata, Cymbopogon citronella, Solanum verbascifolium and Tylophora ovata. KARBALA INTERNATIONAL JOURNAL OF MODERN SCIENCE 2015. [DOI: 10.1016/j.kijoms.2015.12.003] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Mashwani ZUR, Khan T, Khan MA, Nadhman A. Synthesis in plants and plant extracts of silver nanoparticles with potent antimicrobial properties: current status and future prospects. Appl Microbiol Biotechnol 2015; 99:9923-34. [DOI: 10.1007/s00253-015-6987-1] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2015] [Revised: 08/31/2015] [Accepted: 09/02/2015] [Indexed: 11/29/2022]
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Maddinedi SB, Mandal BK, Vankayala R, Kalluru P, Pamanji SR. Bioinspired reduced graphene oxide nanosheets using Terminalia chebula seeds extract. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 145:117-124. [PMID: 25770934 DOI: 10.1016/j.saa.2015.02.037] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Revised: 01/30/2015] [Accepted: 02/06/2015] [Indexed: 06/04/2023]
Abstract
A green one step facile synthesis of graphene nanosheets by Terminalia chebula (T. chebula) extract mediated reduction of graphite oxide (GO) is reported in this work. This method avoids the use of harmful toxic reducing agents. The comparative results of various characterizations of GO and T. chebula reduced graphene oxide (TCG) provide a strong indication of the exclusion of oxygen containing groups from graphene oxide and successive stabilization of the formed reduced graphene oxide (RGO). The functionalization of reduced graphene oxide with the oxidized polyphenols causes their stability by preventing the aggregation. We also have proposed how the oxidized polyphenols are accountable for the stabilization of the formed graphene sheets.
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Affiliation(s)
- Sireesh Babu Maddinedi
- Trace Elements Speciation Research Laboratory, Environmental and Analytical Chemistry Division, School of Advanced Sciences, VIT University, Vellore 632014, India
| | - Badal Kumar Mandal
- Trace Elements Speciation Research Laboratory, Environmental and Analytical Chemistry Division, School of Advanced Sciences, VIT University, Vellore 632014, India
| | - Raviraj Vankayala
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC
| | - Poliraju Kalluru
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC
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Baharara J, Namvar F, Ramezani T, Mousavi M, Mohamad R. Silver nanoparticles biosynthesized using Achillea biebersteinii flower extract: apoptosis induction in MCF-7 cells via caspase activation and regulation of Bax and Bcl-2 gene expression. Molecules 2015; 20:2693-706. [PMID: 25665064 PMCID: PMC6272258 DOI: 10.3390/molecules20022693] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Revised: 11/17/2014] [Accepted: 12/05/2014] [Indexed: 11/16/2022] Open
Abstract
Silver nanoparticles (Ag-NPs), the most popular nanoparticles, possess unique properties. Achillea biebersteinii is a plant of the Asteraceae family rich in active antitumor components. The aim of this research was the characterization and investigation of the cytotoxic properties of Ag-NPs synthesized using A. biebersteinii flower extract, on a human breast cancer cell line. The Ag-NPs were synthesized after approximately 180 min of reaction at 40 °C, then they were characterized by UV-visible spectroscopy, Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM) and dynamic light scattering (DLS). The anti-apoptosis effect of Ag-NPs on the MCF-7 cell line was investigated by MTT assay, DAPI and acridine orange staining and caspase activity. The transcriptional expression of bax, bcl-2, caspase-3, -8 and -9 were also evaluated by RT-PCR. The TEM images revealed that the Ag-NPs morphology had a different shape. The DLS indicated that the average hydrodynamic diameter of the biosynthesized Ag-NPs was around 12 nm. By UV-visible spectroscopy the strongest absorbance peak was observed at 460 nm. The FTIR results also showed interaction between the plant extract and Ag-NPs due to the similarity in the peak patterns. The EDS results showed that Ag-NPs display an absorption peak at 3 keV, indicating the presence of the element silver. The Ag-NPs caused a dose-dependent decrease in cell viability, fragmentation in nucleic acid, inhibited the proliferation and induction of apoptosis on MCF-7 by suppressing specific cell cycle genes, and simulation programmed cell dead genes. Further investigation is required to establish the potential of this novel and promising approach in cancer therapy.
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Affiliation(s)
- Javad Baharara
- Research Center for Animal Development Applied Biology, Mashhad Branch, Islamic Azad University, Mashhad 917568, Iran.
- Department of Biology, Mashhad Branch, Islamic Azad University, Mashhad 917568, Iran.
| | - Farideh Namvar
- Research Center for Animal Development Applied Biology, Mashhad Branch, Islamic Azad University, Mashhad 917568, Iran.
- Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia.
| | - Tayebe Ramezani
- Faculty of Biological Sciences, Kharazmi University, Tehran 14911, Iran.
| | - Marzieh Mousavi
- Research Center for Animal Development Applied Biology, Mashhad Branch, Islamic Azad University, Mashhad 917568, Iran.
| | - Rosfarizan Mohamad
- Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia.
- Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia.
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Sankar R, Rizwana K, Shivashangari KS, Ravikumar V. Ultra-rapid photocatalytic activity of Azadirachta indica engineered colloidal titanium dioxide nanoparticles. APPLIED NANOSCIENCE 2014. [DOI: 10.1007/s13204-014-0369-3] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kiran Kumar HA, Mandal BK, Mohan Kumar K, Maddinedi SB, Sai Kumar T, Madhiyazhagan P, Ghosh AR. Antimicrobial and antioxidant activities of Mimusops elengi seed extract mediated isotropic silver nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 130:13-18. [PMID: 24759779 DOI: 10.1016/j.saa.2014.03.024] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Revised: 03/04/2014] [Accepted: 03/09/2014] [Indexed: 06/03/2023]
Abstract
The present study reports the use of Mimusops elengi (M. elengi) fruit extract for the synthesis of silver nanoparticles (Ag NPs). The synthesized Ag NPs was initially noticed through visual color change from yellow to reddish brown and further confirmed by surface plasmonic resonance (SPR) band at 429 nm using UV-Visible spectroscopy. Morphology and size of Ag NPs was determined by Transmission Electron Microscopy (TEM) analysis. X-ray Diffraction (XRD) study revealed crystalline nature of Ag NPs. The prolonged stability of Ag NPs was due to capping of oxidized polyphenols which was established by Fourier Transform Infrared Spectroscopy (FTIR) study. The polyphenols present in M. elengi fruit extract was analyzed by High Pressure Liquid Chromatography (HPLC) and the results revealed the presence of ascorbic acid, gallic acid, pyrogallol and resorcinol. In order to study the role of these polyphenols in reducing Ag+ ions to Ag NPs, analyses of extracts before reduction and after reduction were carried out. In addition, the synthesized Ag NPs were tested for antibacterial and antioxidant activities against Staphylococcus aureus (S. Aureus) and Escherichia coli (E. coli). Ag NPs showed good antimicrobial activity against both gram positive (S. aureus) and gram negative (E. coli) bacteria. It also showed good antioxidant activity as compared to ascorbic acid as standard antioxidant.
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Affiliation(s)
- Hoskote Anand Kiran Kumar
- Trace Elements Speciation Research Laboratory, Environmental and Analytical Chemistry Division, School of Advanced Sciences, VIT University, Vellore 632014, India
| | - Badal Kumar Mandal
- Trace Elements Speciation Research Laboratory, Environmental and Analytical Chemistry Division, School of Advanced Sciences, VIT University, Vellore 632014, India.
| | - Kesarla Mohan Kumar
- Trace Elements Speciation Research Laboratory, Environmental and Analytical Chemistry Division, School of Advanced Sciences, VIT University, Vellore 632014, India
| | - Sireesh babu Maddinedi
- Trace Elements Speciation Research Laboratory, Environmental and Analytical Chemistry Division, School of Advanced Sciences, VIT University, Vellore 632014, India
| | - Tammina Sai Kumar
- Trace Elements Speciation Research Laboratory, Environmental and Analytical Chemistry Division, School of Advanced Sciences, VIT University, Vellore 632014, India
| | - Pavithra Madhiyazhagan
- Medical Biotechnology Division, School of Bio Sciences and Technology, VIT University, Vellore 632014, India
| | - Asit Ranjan Ghosh
- Medical Biotechnology Division, School of Bio Sciences and Technology, VIT University, Vellore 632014, India
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Chen YJ, Deng N, Hu B, Wang Y, He JB. Thin layer-based spectral and electrophoretic study of electro-oxidation of solid ellagic acid. J Phys Chem B 2014; 118:2001-8. [PMID: 24495249 DOI: 10.1021/jp4097259] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Acquisition of data from both in situ spectroscopy detection and online chromatography-like separation is important for studying complex electrochemical reactions. The present work provides an example of combination of thin-layer spectral and electrophoretic electrochemistry, both based on thin-layer electrolysis. Two thin-layer electrochemical cells were used to investigate the electro-oxidation of solid ellagic acid at different potentials, in acidic, physiological, and alkaline buffer media. UV-vis spectra and cyclic voltabsorptograms of the oxidation products were recorded in situ without interference from the solid reactant. Four oxidation products, depending upon the buffer pH and the applied potential, were separated and detected by electrophoretic electrochemistry. The major products possess redox stability, possibly with a diquinonemethide structure. The minor product is considered as an o-quinone derivative with a lactone-ring-opening, which can be reduced or further oxidized at appropriate potentials. A consecutive-parallel reaction mechanism is proposed for the formation of four products of ellagic acid in different pH media, which enriches the knowledge about the oxidation pathway and antioxidant property of this biologically active polyphenol compound.
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Affiliation(s)
- Yu-Jiao Chen
- Anhui Key Lab of Controllable Chemical Reaction & Material Chemical Engineering, School of Chemical Engineering, Hefei University of Technology , Hefei 230009, China
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Ghaffari-Moghaddam M, Hadi-Dabanlou R, Khajeh M, Rakhshanipour M, Shameli K. Green synthesis of silver nanoparticles using plant extracts. KOREAN J CHEM ENG 2014. [DOI: 10.1007/s11814-014-0014-6] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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50
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Durán N, Seabra AB, de Lima R. Cytotoxicity and Genotoxicity of Biogenically Synthesized Silver Nanoparticles. Nanotoxicology 2014. [DOI: 10.1007/978-1-4614-8993-1_11] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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