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Dharshini KS, Ameen F, Anbazhagan V. Mechanistic Investigation on the Antibacterial Activity of Biogenic Silver Nanoparticles Prepared Using Root Extract of Sarsaparilla and Demonstrated their In Vivo Efficacy in Zebrafish Model. Curr Microbiol 2024; 81:268. [PMID: 39003685 DOI: 10.1007/s00284-024-03794-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Accepted: 07/01/2024] [Indexed: 07/15/2024]
Abstract
Antibiotic success rates are decreasing as drug-resistant bacteria become more prevalent, prompting the development of new therapeutic drugs. Herein, we demonstrated the antimicrobial activity of sarsaparilla root extract fabricated silver nanoparticles (sAgNPs). The UV-Visible spectra revealed that the surface Plasmon resonance maxima of sAgNPs were at 415 nm. Transmission electron microscopy confirms that the particles are spherical with size of 12-35 nm. The minimum inhibitory concentration (MIC) of sAgNPs against Escherichia coli, uropathogenic Escherichia coli, Pseudomonas aeruginosa, Enterococcus faecalis, Staphylococcus aureus, and methicillin-resistant Staphylococcus aureus was 62.5, 62.5, 62.5, 62.5, 125 and 125 µM, respectively. At 1X MIC, sAgNPs induces excess reactive oxygen species (ROS) production and disturbs the bacteria membrane intergity, causing cytoplamic membrane depolarization. Interestingly, antibacterial activity of sAgNPs was considerably reduced in the presence of an antioxidant, N-acetyl cysteine, suggesting that ROS-induced membrane damage is a plausible cause of cell death. In contrast to many studies that only report the in vitro activity of NPs, we determined the in vivo antibacterial efficacy using the zebrafish model. It was found that sAgNPs protect fish from infection by inhibiting bacterial growth and eliminating them from the fish. In addition, the catalytic potential of sAgNPs for wastewater decontamination was demonstrated by degrading organic pollutants such as methyl orange, congo red, reactive black, and acid blue. The pollutants degraded in less than 10 min, and the reaction follows pseudo-first-order kinetics. As a proof of concept, the catalytic potential of sAgNPs in degrading mixed dyes to satisfy industrial wastewater treatment needs was established. In summary, sAgNPs have the potential to act as nanocatalysts and nano-drugs, addressing key challenges in medical and environmental research.
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Affiliation(s)
- Karnan Singaravelu Dharshini
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu, 613 401, India
| | - Fuad Ameen
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Veerappan Anbazhagan
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu, 613 401, India.
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Hamed NS, Taha EFS, Khateeb S. Matcha-silver nanoparticles reduce gamma radiation-induced oxidative and inflammatory responses by activating SIRT1 and NLRP-3 signaling pathways in the Wistar rat spleen. Cell Biochem Funct 2023; 41:1115-1132. [PMID: 37653677 DOI: 10.1002/cbf.3844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 07/20/2023] [Accepted: 08/20/2023] [Indexed: 09/02/2023]
Abstract
The biogenic synthesis of nanoparticles has drawn significant attention. The spleen is the largest lymphatic organ that is adversely impacted during irradiation. The current study was designated to evaluate the possible anti-inflammatory effect of matcha-silver nanoparticles (M-AgNPs) to reduce inflammation associated with γ-radiation induced-oxidative stress and inflammation in rats' spleen. Silver nanoparticles (AgNPs) were synthesized by biogenic synthesis using a green sonochemical method from matcha (M) green tea. The obtained M-AgNPs were extensively characterized by dynamic light scattering, transmission electron microscopy, thermogravimetric analysis, and Fourier-transform infrared spectroscopy. Using zetasizer analysis, the surface charge, particle size, and radical scavenging DPPH assay of M-AgNPs were also examined. Biocompatibility and cytotoxicity were analyzed by MTT assay, and the IC50 was calculated. Four groups of 24 Wistar rats each had an equal number of animals. The next step involved measuring the levels of oxidative stress markers in the rat splenic tissue. Additionally, the amounts of inflammatory protein expression were evaluated using the ELISA analysis. The results indicated the formation of spherical nanoparticles of pure Ag° coated with matcha polyphenols at the nanoscale, as well as uniform monodisperse particles suited for cellular absorption. Results revealed that M-AgNPs improved all biochemical parameters. Furthermore, M-AgNPs relieve inflammation by reducing the expression of NOD-like receptor family pyrin domain-containing 3 (NLRP3), interleukin-1β (IL-1β), and enhancing the levels of ileSnt information regulator 1 (SIRT1). Histopathological examinations demonstrated the ability of M-AgNPs to overcome the damage consequent to irradiation and recover the spleen's cellular structure. These results confirmed that matcha is a potential biomaterial for synthesizing AgNPs, which can be exploited for their anti-inflammatory activity.
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Affiliation(s)
- Noha Sayed Hamed
- Radioisotopes Department, Nuclear Research Centre, Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt
| | - Eman F S Taha
- Health Radiation Research Department, National Centre for Radiation Research and Technology, Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt
| | - Sahar Khateeb
- Department of Chemistry, Biochemistry Division, Faculty of Science, Fayum University, Fayum, Egypt
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Al-Enazi NM, Alsamhary K, Ameen F. Evaluation of citrus pectin capped copper sulfide nanoparticles against Candidiasis causing Candida biofilms. ENVIRONMENTAL RESEARCH 2023; 225:115599. [PMID: 36898420 DOI: 10.1016/j.envres.2023.115599] [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: 01/28/2023] [Revised: 02/19/2023] [Accepted: 02/28/2023] [Indexed: 06/18/2023]
Abstract
The incidence of candidiasis has significantly increased globally in recent decades, and it is a significant source of morbidity and mortality, particularly in critically ill patients. Candida sp. ability to generate biofilms is one of its primary pathogenic traits. Drug-resistant strains have led to clinical failures of traditional antifungals, necessitating the development of a more modern therapy that can inhibit biofilm formation and enhance Candida sp. sensitivity to the immune system. The present study reports the anticandidal potential of pectin-capped copper sulfide nanoparticles (pCuS NPs) against Candida albicans. The pCuS NPs inhibit C. albicans growth at a minimum inhibitory concentration (MIC) of 31.25 μM and exhibit antifungal action by compromising membrane integrity and overproducing reactive oxygen species. The pCuS NPs, at their biofilm inhibitory concentration (BIC) of 15.63 μM, effectively inhibited C. albicans cells adhering to the glass slides, confirmed by light microscopy and scanning electron microscopy. Phase contrast microscopy pictures revealed that NPs controlled the morphological transitions between the yeast and hyphal forms by limiting conditions that led to filamentation and reducing hyphal extension. In addition, C. albicans showed reduced exopolysaccharide (EPS) production and exhibited less cell surface hydrophobicity (CSH) after pCuS NPs treatment. The findings suggest that pCuS NPs may be able to inhibit the emergence of virulence traits that lead to the formation of biofilms, such as EPS, CSH, and hyphal morphogenesis. The results raise the possibility of developing NPs-based therapies for C. albicans infections associated with biofilms.
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Affiliation(s)
- Nouf M Al-Enazi
- Department of Biology, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-kharj, 11942, Saudi Arabia.
| | - Khawla Alsamhary
- Department of Biology, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-kharj, 11942, Saudi Arabia
| | - Fuad Ameen
- Department of Botany & Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
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Wahab M, Bhatti A, John P. Evaluation of Antidiabetic Activity of Biogenic Silver Nanoparticles Using Thymus serpyllum on Streptozotocin-Induced Diabetic BALB/c Mice. Polymers (Basel) 2022; 14:polym14153138. [PMID: 35956652 PMCID: PMC9370869 DOI: 10.3390/polym14153138] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 07/27/2022] [Accepted: 07/29/2022] [Indexed: 11/16/2022] Open
Abstract
Type 2 Diabetes Mellitus is one of the most common metabolic disorders, and is characterized by abnormal blood sugar level due to impaired insulin secretion or impaired insulin action—or both. Metformin is the most commonly used drug for the treatment of Type 2 Diabetes Mellitus, but due to its slow mode of action and various side effects it shows poor and slow therapeutic response in patients. Currently, scientists are trying to tackle these limitations by developing nanomedicine. This research reports novel synthesis of silver nanoparticles using aqueous extract of Thymus serpyllum and aims to elucidate its therapeutic potential as an antidiabetic agent on streptozotocin induced diabetic BALB/c mice. Thymus serpyllum mediated silver nanoparticles were characterized through UV, SEM, XRD, and FTIR. The alpha amylase inhibition and antioxidant activity were checked through α amylase and DPPH radical scavenging assay, respectively. To check the effect of silver nanoparticles on blood glucose levels FBG, IPGTT, ITT tests were employed on STZ induced BALB/c mice. To assess the morphological changes in the anatomy of liver, pancreas, and kidney of BALB/c mice due to silver nanoparticles, histological analysis was done through H&E staining system. Finally, AMPK and IRS1 genes expression analysis was carried out via real time PCR. Silver nanoparticles were found to be spherical in shape with an average size of 42 nm. They showed an IC50 of 8 μg/mL and 10 μg/mL for α amylase and DPPH assay, respectively. Our study suggests that silver nanoparticles—specifically 10 mg/kg—cause a significant increase in the expression of AMPK and IRS1, which ultimately increase the glucose uptake in cells. Thymus serpyllum mediated silver nanoparticles possess strong antioxidant and antidiabetic potential and can further be explored as an effective and cheaper alternative option for treatment of Type 2 Diabetes Mellitus.
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Affiliation(s)
- Maryam Wahab
- Department of Healthcare Biotechnology, Atta-ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan; (M.W.); (P.J.)
- Department of Dairy and Food Science, South Dakota State University, Brookings, SD 57007, USA
| | - Attya Bhatti
- Department of Healthcare Biotechnology, Atta-ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan; (M.W.); (P.J.)
- Correspondence: ; Tel.: +92-51-886-6128
| | - Peter John
- Department of Healthcare Biotechnology, Atta-ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan; (M.W.); (P.J.)
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Hu D, Yang X, Chen W, Feng Z, Hu C, Yan F, Chen X, Qu D, Chen Z. Rhodiola rosea Rhizome Extract-Mediated Green Synthesis of Silver Nanoparticles and Evaluation of Their Potential Antioxidant and Catalytic Reduction Activities. ACS OMEGA 2021; 6:24450-24461. [PMID: 34604627 PMCID: PMC8482401 DOI: 10.1021/acsomega.1c02843] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Indexed: 05/30/2023]
Abstract
The silver nanoparticles (AgNPs) using the rhizome extract of Rhodiola rosea have been reported. However, their antioxidant activity and whether the biogenic AgNPs could be used to catalyze the reduction of hazardous dye or used as fluorescence enhancers are unknown. This study focused on the facile green synthesis of silver nanoparticles using the rhizome aqueous extract of R. rosea (G-AgNPs). We then studied their antioxidant activity and catalytic degradation of hazardous dye Direct Orange 26 (DO26) and Direct Blue 15 (DB15). Their effects on fluorescein's fluorescent properties were also evaluated. The chemical AgNPs (C-AgNPs) were synthesized by reducing solid sodium borohydride (NaBH4), and its above activities were compared with those of G-AgNPs. The formation of G-AgNPs was confirmed by the appearance of brownish-gray color and the surface plasmon resonance (SPR) peak at 437 nm. The biogenic AgNPs were approximately 10 nm in size with a regular spherical shape identified from transmission electron microscopy (TEM) analysis. G-AgNPs exhibited significantly improved 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activity than butylated hydroxytoluene (BHT) and C-AgNPs (p < 0.05). The biogenic G-AgNPs were also found to function as an effective green catalyst in reducing DO26 and DB15 by NaBH4, which is superior to C-AgNPs. Furthermore, G-AgNPs showed better fluorescence enhancement activity than C-AgNPs, and the concentration required was lower. When the concentration of the G-AgNP solution was 64 nmol/L, the fluorescence intensity reached the maximum of 5460, with the fluorescence enhancement efficiency of 3.39, and the fluorescence activity was stable within 48 h. This study shows the efficacy of biogenic AgNPs in catalyzing the reduction of hazardous dye DO26 and DB15. Biogenic AgNPs could also be used as fluorescence enhancers in low concentrations.
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Affiliation(s)
- Daihua Hu
- Vitamin
D Research Institute, College of Bioscience and Bioengineering, Shaanxi University of Technology, Hanzhong, Shaanxi 723000, China
- College
of Food Science and Engineering, Northwest
A&F University, Yangling, Shaanxi 712100, China
- Shaanxi
Key Laboratory of Bioresource, College of Bioscience and Bioengineering, Shaanxi University of Technology, Hanzhong, Shaanxi 723001, China
| | - Xu Yang
- Vitamin
D Research Institute, College of Bioscience and Bioengineering, Shaanxi University of Technology, Hanzhong, Shaanxi 723000, China
| | - Wang Chen
- Vitamin
D Research Institute, College of Bioscience and Bioengineering, Shaanxi University of Technology, Hanzhong, Shaanxi 723000, China
| | - Zili Feng
- Vitamin
D Research Institute, College of Bioscience and Bioengineering, Shaanxi University of Technology, Hanzhong, Shaanxi 723000, China
| | - Chingyuan Hu
- Shaanxi
Key Laboratory of Bioresource, College of Bioscience and Bioengineering, Shaanxi University of Technology, Hanzhong, Shaanxi 723001, China
| | - Fei Yan
- Shaanxi
Key Laboratory of Bioresource, College of Bioscience and Bioengineering, Shaanxi University of Technology, Hanzhong, Shaanxi 723001, China
| | - Xiaohua Chen
- Shaanxi
Key Laboratory of Bioresource, College of Bioscience and Bioengineering, Shaanxi University of Technology, Hanzhong, Shaanxi 723001, China
| | - Dong Qu
- Shaanxi
Key Laboratory of Bioresource, College of Bioscience and Bioengineering, Shaanxi University of Technology, Hanzhong, Shaanxi 723001, China
| | - Zhiyuan Chen
- Shaanxi
Key Laboratory of Bioresource, College of Bioscience and Bioengineering, Shaanxi University of Technology, Hanzhong, Shaanxi 723001, China
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Green synthesis of palladium nanoparticles: Preparation, characterization, and investigation of antioxidant, antimicrobial, anticancer, and DNA cleavage activities. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6272] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Phytofabrication of Silver Nanoparticles (AgNPs) with Pharmaceutical Capabilities Using Otostegia persica (Burm.) Boiss. Leaf Extract. NANOMATERIALS 2021; 11:nano11041045. [PMID: 33921810 PMCID: PMC8074182 DOI: 10.3390/nano11041045] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/16/2021] [Accepted: 04/16/2021] [Indexed: 12/20/2022]
Abstract
In the last years, the plant-mediated synthesis of nanoparticles has been extensively researched as an affordable and eco-friendly method. The current study confirms for the first time the capability of the Otostegia persica (Burm.) Boiss. leaf extract for the synthesis of silver nanoparticles (AgNPs). The phytofabricated AgNPs were characterized by ultraviolet–visible spectroscopy (UV-Vis), Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), transmission electron microscopy (TEM), and zeta potential analysis. Moreover, the total phenolic and flavonoids contents, and the antioxidant, antibacterial, antifungal, and anti-inflammatory properties of the phytofabricated AgNPs and the O. persica leaf extract were assessed. The results showed that the produced AgNPs were crystalline in nature and spherical in shape with an average size of 36.5 ± 2.0 nm, and indicated a localized surface plasmon resonance (LSPR) peak at around 420 nm. The zeta potential value of −25.2 mV pointed that the AgNPs were stable. The phytofabricated AgNPs had lower total phenolic and flavonoids contents than those for the O. persica leaf extract. The abovementioned AgNPs showed a higher antioxidant activity as compared with the O. persica leaf extract. They also exhibited significant antibacterial activity against both Gram-positive (Staphylococcus aureus, Bacillus subtilis, and Streptococcus pyogenes) and Gram-negative (Escherichia coli, Pseudomonas aeruginosa, and Salmonella typhi) bacteria. In addition, appropriate antifungal effects with the minimum inhibitory concentration (MIC) values of 18.75, 37.5, and 75 µg mL−1 against Candida krusei, Candida glabrata, and Candida albicans, respectively, were noted for this new bionanomaterial. Finally, the phytofabricated AgNPs showed dose-dependent anti-inflammatory activity in the human red blood cell (RBC) membrane stabilization test, being higher than that for the O. persica leaf extract. The resulting phytofabricated AgNPs could be used as a promising antioxidant, antibacterial, antifungal, and anti-inflammatory agent in the treatments of many medical complications.
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Alahmad A, Feldhoff A, Bigall NC, Rusch P, Scheper T, Walter JG. Hypericum perforatum L.-Mediated Green Synthesis of Silver Nanoparticles Exhibiting Antioxidant and Anticancer Activities. NANOMATERIALS 2021; 11:nano11020487. [PMID: 33673018 PMCID: PMC7918618 DOI: 10.3390/nano11020487] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 02/08/2021] [Accepted: 02/09/2021] [Indexed: 12/16/2022]
Abstract
This contribution focuses on the green synthesis of silver nanoparticles (AgNPs) with a size < 100 nm for potential medical applications by using silver nitrate solution and Hypericum Perforatum L. (St John’s wort) aqueous extracts. Various synthesis methods were used and compared with regard to their yield and quality of obtained AgNPs. Monodisperse spherical nanoparticles were generated with a size of approximately 20 to 50 nm as elucidated by different techniques (SEM, TEM). XRD measurements showed that metallic silver was formed and the particles possess a face-centered cubic structure (fcc). SEM images and FTIR spectra revealed that the AgNPs are covered by a protective surface layer composed of organic components originating from the plant extract. Ultraviolet-visible spectroscopy, dynamic light scattering, and zeta potential were also measured for biologically synthesized AgNPs. A potential mechanism of reducing silver ions to silver metal and protecting it in the nanoscale form has been proposed based on the obtained results. Moreover, the AgNPs prepared in the present study have been shown to exhibit a high antioxidant activity for 2, 2′-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) radical cation, and super oxide anion radical and 2,2-diphenyl-1-picrylhydrazyl. Synthesized AgNPs showed high cytotoxicity by inhibiting cell viability for Hela, Hep G2, and A549 cells.
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Affiliation(s)
- Abdalrahim Alahmad
- Institut für Technische Chemie, Leibniz Universität Hannover, 30167 Lower Saxony, Germany;
- Correspondence: (A.A.); (J.-G.W.); Tel.: +49-511-762-2773 (A.A.)
| | - Armin Feldhoff
- Institut für Physikalische Chemie und Elektrochemie, Leibniz Universität Hannover, 30167 Lower Saxony, Germany; (A.F.); (N.C.B.); (P.R.)
| | - Nadja C. Bigall
- Institut für Physikalische Chemie und Elektrochemie, Leibniz Universität Hannover, 30167 Lower Saxony, Germany; (A.F.); (N.C.B.); (P.R.)
| | - Pascal Rusch
- Institut für Physikalische Chemie und Elektrochemie, Leibniz Universität Hannover, 30167 Lower Saxony, Germany; (A.F.); (N.C.B.); (P.R.)
| | - Thomas Scheper
- Institut für Technische Chemie, Leibniz Universität Hannover, 30167 Lower Saxony, Germany;
| | - Johanna-Gabriela Walter
- Institut für Technische Chemie, Leibniz Universität Hannover, 30167 Lower Saxony, Germany;
- Correspondence: (A.A.); (J.-G.W.); Tel.: +49-511-762-2773 (A.A.)
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Hashemi Z, Ebrahimzadeh MA, Biparva P, Mortazavi-Derazkola S, Goli HR, Sadeghian F, Kardan M, Rafiei A. Biogenic Silver and Zero-Valent Iron Nanoparticles by Feijoa: Biosynthesis, Characterization, Cytotoxic, Antibacterial and Antioxidant Activities. Anticancer Agents Med Chem 2020; 20:1673-1687. [DOI: 10.2174/1871520620666200619165910] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 03/06/2020] [Accepted: 03/06/2020] [Indexed: 02/05/2023]
Abstract
Background: and Purpose:
Green nanotechnology is an interesting method for the synthesis of functional
nanoparticles. Because of their wide application, they have set up great attention in recent years.
Objective:
The present research examines the green synthesis of Ag and zero-valent iron nanoparticles (AgNPs,
ZVINPs) by Feijoa sellowiana fruit extract. In this synthesis, no stabilizers or surfactants were applied.
Methods:
Eco-friendly synthesis of Iron and biogenic synthesis of Ag nanoparticles were accomplished by
controlling critical parameters such as concentration, incubation period and temperature. Scanning Electron
Microscopy (SEM), Transmission Electron Microscope (TEM), Energy-Dispersive X-ray Spectroscopy (EDS),
Fourier-Transform Infrared (FT-IR) spectroscopy, X-ray Diffraction analysis (XRD), Dynamic Light Scattering
(DLS) and UV-Vis were applied to characterize NPs. The cytotoxicity of NPs was investigated in two cell lines,
MCF-7 (breast cancer) and AGS (human gastric carcinoma). A high-performance liquid chromatography
(HPLC) analysis was also performed for characterization of phenolic acids in the extract.
Results:
Both NPs displayed powerful anticancer activities against two tumor cell lines with little effect on
BEAS-2B normal cells. Synthesized AgNPs and ZVINPs inhibited the growth of all selected bacteria. Pseudomonas
aeruginosa, Proteus mirabilis, Klebsiella pneumonia, Staphylococcus aureus, Enterococcus faecalis,
Acinetobacter baumannii and Escherichia coli have been studied in two stages. We initially examined the
ATCCs followed by clinical strain isolation. Based on the results from resistant strains, we showed that nanoparticles
were superior to conventional antibiotics. DPPH (diphenyl-1-picrylhydrazyl) free radical scavenging assay
and iron chelating activity were used for the determination of antioxidant properties. Results showed a high
antioxidant activity of scavenging free radicals for ZVINPs and powerful iron-chelating activity for AgNPs.
Based on the HPLC data, catechin was the major phenolic compound in the extract.
Conclusion:
Our synthesized nanoparticles displayed potent cytotoxic, antibacterial and antioxidant activities.
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Affiliation(s)
- Zahra Hashemi
- Depatment of Medicinal Chemistry, School of Pharmacy and Pharmaceutical Sciences Research Center, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mohammad Ali Ebrahimzadeh
- Depatment of Medicinal Chemistry, School of Pharmacy and Pharmaceutical Sciences Research Center, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Pourya Biparva
- Department of Basic Sciences, Sari University of Agricultural Sciences and Natural Resources, Sari, Iran
| | - Sobhan Mortazavi-Derazkola
- Medical Toxicology and Drug Abuse Research Center (MTDRC), Birjand University of Medical Sciences, Birjand, Iran
| | - Hamid Reza Goli
- Molecular and Cell Biology Research Center, Hemoglobinopathy Institute, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Fereshteh Sadeghian
- Depatment of Medicinal Chemistry, School of Pharmacy and Pharmaceutical Sciences Research Center, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mostafa Kardan
- Molecular and Cell Biology Research Center, Hemoglobinopathy Institute, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Alireza Rafiei
- Molecular and Cell Biology Research Center, Hemoglobinopathy Institute, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
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Facile Synthesis of Silver Nanoparticles Using Asian Spider Flower and Its In Vitro Cytotoxic Activity Against Human Breast Carcinoma Cells. Processes (Basel) 2020. [DOI: 10.3390/pr8040430] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Cancer is one of the most dangerous threats to human health and possibly the utmost task for current medicine. Currently, bio-based synthesis of nanoparticles from plants has gained much interest due to its potential medicinal applications. In the present study, a biological approach was employed for biogenic (green) synthesis of silver nanoparticles (AgNPs) using dried leaf extract of Asian spider flower (Asf). The biogenic synthesis of Asf-AgNPs (Asian spider flower-Silver nanoparticles) was established using ultra violet-visible (UV-vis) spectra which exhibited a wide superficial plasmon resonance of AgNPs at 445 nm. These nanoparticles clearly showed the formation of poly-disperse crystalline solids (spherical shape) with particle size range of <50 nm based on observation under a transmission electron microscope (TEM). Infrared spectroscopy (FTIR) revealed carboxylic acids (C = O stretch) known to act as a capping agent and a reductant in plant extracts. Elemental silver signal peak was observed in the graph obtained from energy-dispersive X-ray (EDX) analysis. Biocompatibility tests for Asf-AgNPs at different doses were evaluated against human breast cancer cells (MCF7) for cell viability and apoptotic analysis. According to the evaluation, biosynthesized Asf-AgNPs could prevent the explosion of human breast tumor cells (MCF7) in IC50 at a dose of 40 μg/mL after 48 h of treatment. The results obtained in the IC50 dosage treatments were statistically significant (p < 0.05) when compared with control. Nuclear damage of cells was further investigated using annexin V-FITC/PI dual staining and DAPI (4′,6-diamidino-2-phenylindole) staining method. Bright blue fluorescence with condensed and fragmented chromatin was observed. Western blot analysis showed increased expression levels of caspases-3 and 9 (apoptotic proteins). These results indicate that bio-approached AgNPs synthesized through Asf plant extract could be used as potential therapeutic medications for human cancer cells.
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Küp FÖ, Çoşkunçay S, Duman F. Biosynthesis of silver nanoparticles using leaf extract of Aesculus hippocastanum (horse chestnut): Evaluation of their antibacterial, antioxidant and drug release system activities. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 107:110207. [DOI: 10.1016/j.msec.2019.110207] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 09/04/2019] [Accepted: 09/13/2019] [Indexed: 01/02/2023]
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Chinnasamy G, Chandrasekharan S, Bhatnagar S. Biosynthesis of Silver Nanoparticles from Melia azedarach: Enhancement of Antibacterial, Wound Healing, Antidiabetic and Antioxidant Activities. Int J Nanomedicine 2019; 14:9823-9836. [PMID: 31849471 PMCID: PMC6913292 DOI: 10.2147/ijn.s231340] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 11/19/2019] [Indexed: 01/13/2023] Open
Abstract
PURPOSE Global demand for novel, biocompatible, eco-friendly resources to fight diseases inspired this study. We investigated plants used in traditional medicine systems and utilized nanotechnology to synthesize, evaluate, and enhance potential applications in nanomedicine. METHODS Aqueous leaf extract from Melia azedarach (MA) was utilized for bio-synthesis of silver nanoparticles (MA-AgNPs). Reaction conditions were optimized for high yield and colloidal stability was evaluated using UV-Vis spectroscopy. MA-AgNPs were characterized by scanning electron microscopy (SEM), energy-dispersive X-ray (EDX), transmission electron microscopy (TEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). Standard methods were used to analyze the antibacterial, wound healing, antidiabetic, antioxidant, and cytotoxic activities. RESULTS The formation of MA-AgNPs at room temperature was confirmed by stable brown colloidal solution with maximum absorbance at 420 nm (UV-Vis Spectroscopy). MA-AgNPs were spherical (SEM), uniformly dispersed, 14-20 nm in diameter (TEM), and crystalline in nature (XRD). Presence of elemental silver was confirmed by peak at 3 KeV (EDX). FTIR data revealed the presence of functional groups which indicate phyto-constituents (polyphenols, flavonoids, and terpenoids) may have acted as the reducing and capping agents. MA-AgNPs (1000 µg/mL) showed larger zone of inhibition than MA-extract in the disk diffusion assay for human pathogenic gram positive bacteria, Bacillus cereus (34 mm) and gram negative, Escherichia coli (37 mm), thus confirming their higher antibacterial activity. The cell scratch assay on human dermal fibroblast cells revealed potential wound healing activity. The MA-AgNPs (400 µg/mL) demonstrated high antidiabetic efficacy as measured by α-amylase (85.75%) and α-glucosidase (80.33%) inhibition assays and antioxidant activity as analyzed by DPPH (63.83%) and ABTS (63.61%) radical scavenging assays. Toxic effect of MA-AgNPs against human chang liver cells (CCL-13) as determined by MTS assay, optical microscopic and CMFDA dye methods was insignificant. CONCLUSION This sustainable, green synthesis of AgNPs is a competitive alternative to conventional methods and will play a significant role in biomedical applications of Melia azedarach.
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Affiliation(s)
- Gandhimathi Chinnasamy
- Plant Transformation and Tissue Culture, Temasek Life Sciences Laboratory, National University of Singapore, 117604, Singapore
| | - Smitha Chandrasekharan
- Plant Transformation and Tissue Culture, Temasek Life Sciences Laboratory, National University of Singapore, 117604, Singapore
| | - Somika Bhatnagar
- Plant Transformation and Tissue Culture, Temasek Life Sciences Laboratory, National University of Singapore, 117604, Singapore
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Pawar JS, Patil RH. Green synthesis of silver nanoparticles using Eulophia herbacea (Lindl.) tuber extract and evaluation of its biological and catalytic activity. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-1846-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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14
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Gulbagca F, Ozdemir S, Gulcan M, Sen F. Synthesis and characterization of Rosa canina-mediated biogenic silver nanoparticles for anti-oxidant, antibacterial, antifungal, and DNA cleavage activities. Heliyon 2019; 5:e02980. [PMID: 31867461 PMCID: PMC6906675 DOI: 10.1016/j.heliyon.2019.e02980] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 11/01/2019] [Accepted: 11/29/2019] [Indexed: 01/07/2023] Open
Abstract
In biomedical applications, silver nanoparticles (Ag NPs) are of great interest due to their cost-effective and environmentally friendly properties. Green synthesis of nanoparticles for biological research is a preferred choice since it does not require additional reducing agent. For this purpose, in this study, we aimed to synthesize the biogenic silver nanoparticles with the help of Rosa canina plant (Rc-Ag NPs) and then they have been tried for their antioxidant and antibacterial properties. UV-Vis spectrophotometer, transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) analyses were performed for characterization of Rc-Ag NPs. Antioxidant properties of silver nanoparticles synthesized with Rosa canina plant were investigated against 2,2′-diphenyl-1-picrylhydrazyl radical (DPPH). DNA dissociation activity of synthesized Rc-Ag NPs was studied, and DNA dissociation activity was shown. The antimicrobial activity of Rc-Ag NPs was also tested using micro-dilution. According to the results, Rc-Ag NPs synthesized were found to be highly effective for anti-oxidant, antibacterial, antifungal, and DNA cleavage activities.
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Affiliation(s)
- Fulya Gulbagca
- Sen Research Group, Biochemistry Department, Dumlupinar University, Evliya Celebi Campus, 43100, Kutahya, Turkey
| | - Sadin Ozdemir
- Food Processing Programme, Technical Science Vocational School, Mersin University, TR-33343 Yenisehir, Mersin, Turkey
| | - Mehmet Gulcan
- Chemistry Department, Van Yuzuncu Yil University, Zeve Campus, 65080, Van, Turkey
| | - Fatih Sen
- Sen Research Group, Biochemistry Department, Dumlupinar University, Evliya Celebi Campus, 43100, Kutahya, Turkey
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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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16
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Phyto-Nanocatalysts: Green Synthesis, Characterization, and Applications. Molecules 2019; 24:molecules24193418. [PMID: 31547052 PMCID: PMC6804184 DOI: 10.3390/molecules24193418] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 09/14/2019] [Accepted: 09/18/2019] [Indexed: 01/14/2023] Open
Abstract
Catalysis represents the cornerstone of chemistry, since catalytic processes are ubiquitous in almost all chemical processes developed for obtaining consumer goods. Nanocatalysis represents nowadays an innovative approach to obtain better properties for the catalysts: stable activity, good selectivity, easy to recover, and the possibility to be reused. Over the last few years, for the obtaining of new catalysts, classical methods—based on potential hazardous reagents—have been replaced with new methods emerged by replacing those reagents with plant extracts obtained in different conditions. Due to being diversified in morphology and chemical composition, these materials have different properties and applications, representing a promising area of research. In this context, the present review focuses on the metallic nanocatalysts’ importance, different methods of synthesis with emphasis to the natural compounds used as support, characterization techniques, parameters involved in tailoring the composition, size and shape of nanoparticles and applications in catalysis. This review presents some examples of green nanocatalysts, grouped considering their nature (mono- and bi-metallic nanoparticles, metallic oxides, sulfides, chlorides, and other complex catalysts).
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Mazumder JA, Perwez M, Noori R, Sardar M. Development of sustainable and reusable silver nanoparticle-coated glass for the treatment of contaminated water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:23070-23081. [PMID: 31187375 DOI: 10.1007/s11356-019-05647-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 05/30/2019] [Indexed: 06/09/2023]
Abstract
Water contaminants like pathogenic microbes and organic pollutants pose a serious threat to human and aquatic life forms; thus, there is an urgent need to develop a sustainable and affordable water treatment technology. Nanomaterials especially metal nanoparticles have extensive applications in wastewater treatment, but the recovery and aggregation of nanoparticles in solution is a major limitation. In the present work, green synthesized silver nanoparticles were covalently immobilized on a glass surface to prevent aggregation of nanoparticles and to enhance their applicability. Fourier transform infrared (FTIR) of silver nanoparticle (AgNP)-coated glass shows peaks of Si-O-Si, Si-O-C, and Ag-O at 1075 cm-1, 780 cm-1, and 608 cm-1 respectively which confirms the immobilization/conjugation of nanomaterial on glass surface. The surface morphology of immobilized AgNP was studied using scanning electron microscopy (SEM) which reveals nanoparticles are spherical and uniformly distributed on glass surface. The AgNP-coated glass was used for the removal of textile dyes in solution; the result indicates approximately 95% of textile dyes were removed after 5 h of treatment. Removal of microbial contaminants from Yamuna River was studied by optical density analysis and confirmed by fluorescence dye staining. The AgNP-coated glass was also studied for their reusability and the data indicates 50% removal of microbes up to the 5th cycle. To further enhance the applicability, the inhibition of bacterial biofilms were analyzed by dark-field illumination with a fluorescence microscope. Thus AgNP-coated glass can be used in the development of food/water storage containers and in textile industries.
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Affiliation(s)
| | - Mohammad Perwez
- Department of Biosciences, Jamia Millia Islamia, New Delhi, 110025, India
| | - Rubia Noori
- Department of Biosciences, Jamia Millia Islamia, New Delhi, 110025, India
| | - Meryam Sardar
- Department of Biosciences, Jamia Millia Islamia, New Delhi, 110025, India.
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Badoei-dalfard A, Shaban M, Karami Z. Characterization, antimicrobial, and antioxidant activities of silver nanoparticles synthesized by uricase from Alcaligenes faecalis GH3. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.101257] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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19
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Shi T, Wei Q, Wang Z, Zhang G, Sun X, He QY. Photocatalytic Protein Damage by Silver Nanoparticles Circumvents Bacterial Stress Response and Multidrug Resistance. mSphere 2019; 4:e00175-19. [PMID: 31043515 PMCID: PMC6495337 DOI: 10.1128/msphere.00175-19] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 04/16/2019] [Indexed: 01/24/2023] Open
Abstract
Silver nanoparticles (AgNPs) are known for their broad-spectrum antibacterial properties, especially against antibiotic-resistant bacteria. However, the bactericidal mechanism of AgNPs remains unclear. In this study, we found that the bactericidal ability of AgNPs is induced by light. In contrast to previous postulates, visible light is unable to trigger silver ion release from AgNPs or to promote AgNPs to induce reactive oxygen species (ROS) in Escherichia coli In fact, we revealed that light excited AgNPs to induce protein aggregation in a concentration-dependent manner in E. coli, indicating that the bactericidal ability of AgNPs relies on the light-catalyzed oxidation of cellular proteins via direct binding to proteins, which was verified by fluorescence spectra. AgNPs likely absorb the light energy and transfer it to the proteins, leading to the oxidation of proteins and thus promoting the death of the bacteria. Isobaric tags for relative and absolute quantitation (iTRAQ)-based proteomics revealed that the bacteria failed to develop effective resistance to the light-excited AgNPs. This direct physical mechanism is unlikely to be counteracted by any known drug resistance mechanisms of bacteria and therefore may serve as a last resort against drug resistance. This mechanism also provides a practical hint regarding the antimicrobial application of AgNPs-light exposure improves the efficacy of AgNPs.IMPORTANCE Although silver nanoparticles (AgNPs) are well known for their antibacterial properties, the mechanism by which they kill bacterial cells remains a topic of debate. In this study, we uncovered the bactericidal mechanism of AgNPs, which is induced by light. We tested the efficacy of AgNPs against a panel of antimicrobial-resistant pathogens as well as Escherichia coli under conditions of light and darkness and revealed that light excited the AgNPs to promote protein aggregation within the bacterial cells. Our report makes a significant contribution to the literature because this mechanism bypasses microbial drug resistance mechanisms, thus presenting a viable option for the treatment of multidrug-resistant bacteria.
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Affiliation(s)
- Tianyuan Shi
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Qiuxia Wei
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Zhen Wang
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Gong Zhang
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Xuesong Sun
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Qing-Yu He
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, Guangzhou, China
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Catalytic reduction of p-nitrophenol and methylene blue by microbiologically synthesized silver nanoparticles. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 93:623-629. [DOI: 10.1016/j.msec.2018.08.025] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 07/25/2018] [Accepted: 08/07/2018] [Indexed: 11/20/2022]
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21
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Bacterial indoleacetic acid-induced synthesis of colloidal Ag 2O nanocrystals and their biological activities. Bioprocess Biosyst Eng 2018; 42:401-414. [PMID: 30448964 DOI: 10.1007/s00449-018-2044-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 11/10/2018] [Indexed: 10/27/2022]
Abstract
The biosynthesis and biological activity of colloidal Ag2O nanocrystals have not been well studied, although they have potential applications in many fields. For the first time, we developed a reducing agent free, cost-effective technique for Ag2O biosynthesis using Xanthomonas sp. P5. The optimal conditions for Ag2O synthesis were 50 °C, pH 8, and 2.5 mM AgNO3. Using these conditions the yield of Ag2O obtained at 10 h was about five times higher than that obtained at 12 h under unoptimized conditions. Ag2O was characterized by FESEM-EDS, TEM, dynamic light scattering, XRD, and UV-Visible spectroscopy. Indoleacetic acid produced by the strain P2 was involved in the synthesis of Ag2O. Ag2O exhibited a broad antimicrobial spectrum against several human pathogens. Furthermore, Ag2O exhibited 1,1-diphenyl-2-picrylhydrazyl (IC50 = 25.1 µg/ml) and 2,2'-azinobis-3-ethylbenzothiazoline-6-sulfonate (IC50 = 16.8 µg/ml) radical scavenging activities, and inhibited collagenase (IC50 = 27.9 mg/ml). Cytotoxicity of Ag2O was tested in fibroblast cells and found to be non-toxic, demonstrating biocompatibility.
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22
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Zamani M, Moradi Delfani A, Jabbari M. Scavenging performance and antioxidant activity of γ-alumina nanoparticles towards DPPH free radical: Spectroscopic and DFT-D studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 201:288-299. [PMID: 29758515 DOI: 10.1016/j.saa.2018.05.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 04/07/2018] [Accepted: 05/01/2018] [Indexed: 05/20/2023]
Abstract
The radical scavenging performance and antioxidant activity of γ-alumina nanoparticles towards 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical were investigated by spectroscopic and computational methods. The radical scavenging ability of γ-alumina nanoparticles in the media with different polarity (i.e. i-propanol and n-hexane) was evaluated by measuring the DPPH absorbance in UV-Vis absorption spectra. The structure and morphology of γ-alumina nanoparticles before and after adsorption of DPPH were studied using XRD, FT-IR and UV-Vis spectroscopic techniques. The adsorption of DPPH free radical on the clean and hydrated γ-alumina (1 1 0) surface was examined by dispersion corrected density functional theory (DFT-D) and natural bond orbital (NBO) calculations. Also, time-dependent density functional theory (TD-DFT) was used to predict the absorption spectra. The adsorption was occurred through the interaction of radical nitrogen N and NO2 groups of DPPH with the acidic and basic sites of γ-alumina surface. The high potential for the adsorption of DPPH radical on γ-alumina nanoparticles was investigated. Interaction of DPPH with Brønsted and Lewis acidic sites of γ-alumina was more favored than Brønsted basic sites. The following order for the adsorption of DPPH over the different active sites of γ-alumina was predicted: Brønsted base < Lewis acid < Brønsted acid. These results are of great significance for the environmental application of γ-alumina nanoparticles in order to remove free radicals.
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Affiliation(s)
- Mehdi Zamani
- School of Chemistry, Damghan University, Damghan 36716-41167, Iran.
| | | | - Morteza Jabbari
- School of Chemistry, Damghan University, Damghan 36716-41167, Iran
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24
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Green synthesis of silver nanoparticles mediated by Coccinia grandis and Phyllanthus emblica: a comparative comprehension. APPLIED NANOSCIENCE 2018. [DOI: 10.1007/s13204-018-0739-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Abstract
Fruit extracts also have the potentiality to synthesize silver nanoparticles, which serve as antimicrobial agent in the biological field. At present, the field of biomedical largely depends on the biosynthesized NPs to fight against the multi-drug-resistant pathogens. The fruit residue of Coccinia grandis and Phyllanthus emblica are employed for synthesizing AgNPs by green method. The NPs are further subjected to UV, FTIR, SEM, and XRD measurements. The ten different pathogens were tested against the AgNPs synthesized. The same were tested for early growth of some seed variety too, so as to check the advantages of AgNPs. The UV spectrum analysis showed 442 nm and 423 nm, respectively, and FTIR peaks for the functional group that is responsible for the conversion of NPs were observed at 1640.02 for N–H bond amines (Coccinia grandis) and at 1637.45 for N–H bond amines (Phyllanthus emblica). The SEM results also illustrated that AgNPs are spherical in shape. The XRD patterns indicate the crystalline nature of the AgNPs formed with both these plants. The antimicrobial assay of AgNPs from Coccinia grandis shows maximum zone of inhibition (14 mm) for Vibrio cholerae whereas the AgNPs from Phyllanthus emblica show maximum inhibition at distinct points, namely for Staphylococcus aureus, Vibrio cholerae, Salmonella typhi, and Proteus mirabilis (12 mm). Seed germination initiated by AgNPs is quiet effective and healthier compared to the water-induced seeds. Hence, biogenic AgNPs have various applications in favour of human society.
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Umamaheswari C, Lakshmanan A, Nagarajan NS. Phyto‐mediated synthesis, biological and catalytic activity studies of gold nanoparticles. IET Nanobiotechnol 2018. [DOI: 10.1049/iet-nbt.2017.0036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Chidambaram Umamaheswari
- Department of ChemistryGandhigram Rural Institute‐Deemed UniversityGandhigram624 302TamilnaduIndia
| | - Alagappan Lakshmanan
- Department of ChemistryGandhigram Rural Institute‐Deemed UniversityGandhigram624 302TamilnaduIndia
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Sun L, Yin Y, Wang F, Su W, Zhang L. Facile one-pot green synthesis of Au-Ag alloy nanoparticles using sucrose and their composition-dependent photocatalytic activity for the reduction of 4-nitrophenol. Dalton Trans 2018; 47:4315-4324. [PMID: 29488519 DOI: 10.1039/c7dt03850j] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Au-Ag alloy nanoparticles (NPs) less than 10 nm in size were synthesized using sucrose as a reductant and surfactant. Au-Ag alloy NPs with a homogeneous composition were continuously obtained by changing the synthesis time from 2 to 40 min in one pot. Based on the UV-Vis, ICP, TEM, HR-TEM, EDX and SAED analyses, the synthesis mechanism of Au-Ag alloy NPs was deduced. Under hydrolysis conditions, sucrose showed a stronger reducibility compared with glucose, fructose and their mixture. And the as-prepared Au-Ag alloy NPs exhibited a superior photocatalytic activity and stability for the reduction of 4-nitrophenol due to the abundant hydroxyl groups of sucrose and the synergistic effect between Au and Ag elements. The rate constant of 4-nitrophenol reduction could be linearly controlled by the composition of Au-Ag alloy NPs or their synthesis time. It was indicated that the photocatalytic activity of Au-Ag alloy NPs could be predetermined as early as their synthesis process. The above methods of controlling the rate constant provide promising routes for other photocatalytic reactions using bimetallic NPs as photocatalysts.
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Affiliation(s)
- Li Sun
- School of Energy and Power Engineering, University of Shanghai for Science and Technology, Jun Gong Road 516, Shanghai 200093, China.
| | - Yuechao Yin
- School of Energy and Power Engineering, University of Shanghai for Science and Technology, Jun Gong Road 516, Shanghai 200093, China.
| | - Fa Wang
- School of Energy and Power Engineering, University of Shanghai for Science and Technology, Jun Gong Road 516, Shanghai 200093, China.
| | - Wenxian Su
- School of Energy and Power Engineering, University of Shanghai for Science and Technology, Jun Gong Road 516, Shanghai 200093, China.
| | - Lixin Zhang
- School of Energy and Power Engineering, University of Shanghai for Science and Technology, Jun Gong Road 516, Shanghai 200093, China.
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Ping Y, Zhang J, Xing T, Chen G, Tao R, Choo KH. Green synthesis of silver nanoparticles using grape seed extract and their application for reductive catalysis of Direct Orange 26. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2017.09.009] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Moteriya P, Chanda S. Biosynthesis of silver nanoparticles formation from Caesalpinia pulcherrima stem metabolites and their broad spectrum biological activities. J Genet Eng Biotechnol 2018; 16:105-113. [PMID: 30647712 PMCID: PMC6296618 DOI: 10.1016/j.jgeb.2017.12.003] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Revised: 12/21/2017] [Accepted: 12/29/2017] [Indexed: 02/03/2023]
Abstract
The present work illustrates eco-friendly, rapid and cost effective method of AgNPs synthesis using C. pulcherrima stem extract. Initially, various physico chemical factors were optimized. Characterization was done by different spectroscopic and microscopic analysis. AgNPs were spherical in shape with an average size of 8 nm. AgNPs showed good synergistic antimicrobial, antibiofilm and antioxidant activity. The cytotoxicity effect against HeLa cancer cell line was dose dependent while genotoxic study revealed the non toxic nature of AgNPs at lower concentration. The results suggest that AgNPs from C. pulcherrima stem extract have great potential in biomedical applications.
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Sun L, Yin Y, Lv P, Su W, Zhang L. Green controllable synthesis of Au–Ag alloy nanoparticles using Chinese wolfberry fruit extract and their tunable photocatalytic activity. RSC Adv 2018. [DOI: 10.1039/c7ra13650a] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Au–Ag alloy nanoparticles, synthesized using wolfberry fruit extract, showed linearly tunable photocatalytic activity through changing alloy composition and synthesis parameters.
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Affiliation(s)
- Li Sun
- School of Energy and Power Engineering
- University of Shanghai for Science and Technology
- Shanghai 200093
- China
| | - Yuechao Yin
- School of Energy and Power Engineering
- University of Shanghai for Science and Technology
- Shanghai 200093
- China
| | - Pengcheng Lv
- School of Energy and Power Engineering
- University of Shanghai for Science and Technology
- Shanghai 200093
- China
| | - Wenxian Su
- School of Energy and Power Engineering
- University of Shanghai for Science and Technology
- Shanghai 200093
- China
| | - Lixin Zhang
- School of Energy and Power Engineering
- University of Shanghai for Science and Technology
- Shanghai 200093
- China
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Sudha A, Jeyakanthan J, Srinivasan P. Green synthesis of silver nanoparticles using Lippia nodiflora aerial extract and evaluation of their antioxidant, antibacterial and cytotoxic effects. RESOURCE-EFFICIENT TECHNOLOGIES 2017. [DOI: 10.1016/j.reffit.2017.07.002] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ferfera-Harrar H, Berdous D, Benhalima T. Hydrogel nanocomposites based on chitosan-g-polyacrylamide and silver nanoparticles synthesized using Curcuma longa for antibacterial applications. Polym Bull (Berl) 2017. [DOI: 10.1007/s00289-017-2183-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Francis S, Joseph S, Koshy EP, Mathew B. Green synthesis and characterization of gold and silver nanoparticles using Mussaenda glabrata leaf extract and their environmental applications to dye degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:17347-17357. [PMID: 28589274 DOI: 10.1007/s11356-017-9329-2] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 05/19/2017] [Indexed: 05/22/2023]
Abstract
Plant-derived nanomaterials opened a green approach in solving the current environment issues. Present study focused on rapid microwave-assisted synthesis and applications of gold and silver nanoparticles mediated by aqueous leaf extract of Mussaenda glabrata. The synthesized nanoparticles were characterized by UV-vis, FT-IR, powder XRD, energy-dispersive X-ray spectroscopy (EDX), transmission electron (TEM), and atomic force microscopic techniques (AFM). FCC crystal structure of both nanoparticles was confirmed by peaks corresponding to (111), (200), (220), and (311) planes in XRD spectra and bright circular spots in SAED pattern. IC50 values shown by gold and silver nanoparticles (44.1 ± 0.82 and 57.92 ± 1.33 μg/mL) reflected their high free radical scavenging potential. The synthesized gold and silver nanoparticles revealed their potency to inhibit pathogenic microorganisms Bacillus pumilus, Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, Aspergillus niger, and Penicillium chrysogenum. Anthropogenic pollutants rhodamine B and methyl orange were effectively degraded from aquatic environment and waste water sewages of dye industries using the prepared nanocatalysts. The catalytic capacities of the synthesized nanoparticles were also exploited in the reduction of 4-nitrophenol. Graphical abstract.
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Affiliation(s)
- Sijo Francis
- Department of Chemistry, St. Joseph's College, Moolamattom, Idukki, Kerala, 685591, India
| | - Siby Joseph
- Department of Chemistry, St. George's College, Aruvithura, Kottayam, Kerala, 686122, India
| | - Ebey P Koshy
- Department of Chemistry, St. Joseph's College, Moolamattom, Idukki, Kerala, 685591, India
| | - Beena Mathew
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam, Kerala, 686560, India.
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33
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Thakur N, Gaikar VG, Sen D, Mazumder S, Pandita NS. Phytosynthesis of Silver Nanoparticles Using Walnut (Juglans regia) Bark with Characterization of the Antibacterial Activity against Streptococcus mutans. ANAL LETT 2017. [DOI: 10.1080/00032719.2016.1192185] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- NirmlaDevi Thakur
- Department of Biological Sciences, Sunandan Divatia School of Science, NMIMS University, Mumbai, India
| | - Vilas G. Gaikar
- Department of Chemical Engineering, Institute of Chemical Technology, Mumbai, India
| | - Debasis Sen
- Solid State Physics Division, Bhabha Atomic Research Center, Mumbai, India
| | - Subhasish Mazumder
- Solid State Physics Division, Bhabha Atomic Research Center, Mumbai, India
| | - Nancy S. Pandita
- Department of Chemical Sciences, Sunandan Divatia School of Science, NMIMS University, Mumbai, India
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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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35
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Adil SF, Assal ME, Khan M, Al-Warthan A, Siddiqui MRH, Liz-Marzán LM. Biogenic synthesis of metallic nanoparticles and prospects toward green chemistry. Dalton Trans 2016; 44:9709-17. [PMID: 25633046 DOI: 10.1039/c4dt03222e] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The immense importance of nanoparticles and their applications is a strong motivation for exploring new synthetic techniques. However, due to strict regulations that manage the potential environmental impacts greener alternatives for conventional synthesis are the focus of intense research. In the scope of this perspective, a concise discussion about the use of green reducing and stabilizing agents toward the preparation of metal nanoparticles is presented. Reports on the synthesis of noble metal nanoparticles using plant extracts, ascorbic acid and sodium citrate as green reagents are summarized and discussed, pointing toward an urgent need of understanding the mechanistic aspects of the involved reactions.
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Affiliation(s)
- Syed Farooq Adil
- Department of Chemistry, College of Science, King Saud University, P.O. 2455, 11451 Riyadh, Kingdom of Saudi Arabia.
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36
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Rajendran N, Subramaniam S, Charan Raja MR, Venkata Subbarao HM, Raghunandan S, Venkatasubramanian U, Pemaiah B, Mahapatra SK, Sivasubramanian A. Design, synthesis and “in vitro” anti-leukemic evaluation of ferulic acid analogues as BCR-Abl inhibitors. RSC Adv 2016. [DOI: 10.1039/c6ra10106b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of ferulic acid derivatives was synthesized and evaluated for anti-proliferative activity against K562, U937 and Hep G2 cells. The compounds were further tested for BCR-Abl kinase inhibition.
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Affiliation(s)
- Narendran Rajendran
- Centre for Advanced Research in Indian System of Medicine (CARISM)
- SASTRA University
- Thanjavur 613401
- India
| | | | | | | | | | | | - Brindha Pemaiah
- Centre for Advanced Research in Indian System of Medicine (CARISM)
- SASTRA University
- Thanjavur 613401
- India
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37
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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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38
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Sunlight mediated synthesis of silver nanoparticles using redox phytoprotein and their application in catalysis and colorimetric mercury sensing. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 151:39-45. [PMID: 26163946 DOI: 10.1016/j.jphotobiol.2015.07.003] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Revised: 07/01/2015] [Accepted: 07/02/2015] [Indexed: 11/20/2022]
Abstract
Owing to the benign nature, plant extracts mediated green synthesis of metal nanoparticles (NPs) is rapidly expanding. In this study, we demonstrated the successful green synthesis of silver nanoparticles (AgNPs) by utilizing natural sunlight and redox protein complex composed of ferredoxin-NADP(+) reductase (FNR) and ferredoxin (FD). The capping and stabilization of the AgNPs by the redox protein was confirmed by Fourier transform infrared spectroscopy. Light and redox protein is the prerequisite factor for the formation of AgNPs. The obtained result shows that the photo generated free radicals by the redox protein is responsible for the reduction of Ag(+) to Ag(0). Transmission electron microscopy revealed the formation of spherical AgNPs with size ranging from 10 to 15 nm. As-prepared AgNPs exhibit excellent catalytic activity toward the degradation of hazardous organic dyes, such as methylene blue, methyl orange and methyl red. These bio-inspired AgNPs is highly sensitive and selective in sensing hazardous mercury ions in the water at micromolar concentration. In addition, FNR/FD extract stabilized AgNPs showed good antimicrobial activity against gram positive and gram negative bacteria.
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Abstract
Nanotechnology is a most promising area that is increasing day by day and play a vital role in environments, biotechnological and biomedical fields. In recent years, the development of effective green chemistry methods for synthesis of various metal nanoparticles has become a main focus of researchers. They have investigated to find out a sustainable technique for production of well-characterized nanoparticles. A variety of chemical and physical methods have been exploited in the synthesis of silver nanoparticles (AgNPs) and these procedures remain expensive, high energy consumption and involve the use of hazardous chemicals. Therefore, there is an essential need to develop environmentally benign and sustainable procedures for synthesis of metallic nanoparticles. Increasing awareness of green chemistry and biological processes has need to develop a rapid, simple, cost-effective and eco-friendly methods. One of the most considered methods is production of nanosilver using plants and plant-derived materials which is the best candidates and suitable for large-scale biosynthesis of silver nanoparticles. Eco-friendly bio-organisms in plant extracts contain proteins, which act as both capping and reducing agents forming of stable and shape-controlled AgNPs. This review describes the recent advancements in the green synthesis of silver nanoparticles by using plants.
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40
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Non-targeted metabolomics and scavenging activity of reactive oxygen species reveal the potential of Salicornia brachiata as a functional food. J Funct Foods 2015. [DOI: 10.1016/j.jff.2014.12.027] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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Meena Kumari M, Jacob J, Philip D. Green synthesis and applications of Au-Ag bimetallic nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 137:185-92. [PMID: 25218228 DOI: 10.1016/j.saa.2014.08.079] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 08/09/2014] [Accepted: 08/23/2014] [Indexed: 05/27/2023]
Abstract
This paper reports for the first time the synthesis of bimetallic nanoparticles at room temperature using the fruit juice of pomegranate. Simultaneous reduction of gold and silver ions in different molar ratios leads to the formation of alloy as well as core-shell nanostructures. The nanoparticles have been characterized using UV-vis spectroscopy, transmission electron microscopy, Fourier Transform Infrared Spectroscopy and X-ray diffraction. The synthesized alloy particles are used as catalysts in the reduction of 2-, 3-, 4-nitrophenols to the corresponding amines and in the degradation of methyl orange. The reduction kinetics for all the reactions follows pseudo-first order. The rate constants follow the order k4-nitrophenol<k2-nitrophenol<k3-nitrophenol. Thermal conductivity is measured as a function of volume fraction and it is observed that the incorporation of the alloy nanoparticles enhances the thermal conductivity of the base fluid (water) showing nanofluid application. The nitric oxide and hydroxyl radical scavenging activity shown by the nanoparticles promise the potential application in biomedical field.
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Affiliation(s)
- M Meena Kumari
- Department of Physics, Mar Ivanios College, Thiruvananthapuram 695 015, India
| | - John Jacob
- Department of Physics, Mar Ivanios College, Thiruvananthapuram 695 015, India
| | - Daizy Philip
- Department of Physics, Mar Ivanios College, Thiruvananthapuram 695 015, India.
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42
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Kurtan U, Baykal A, Sözeri H. Recyclable Fe3O4@Tween20@Ag Nanocatalyst for Catalytic Degradation of Azo Dyes. J Inorg Organomet Polym Mater 2015. [DOI: 10.1007/s10904-015-0190-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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43
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Dharsana US, Sai Varsha MKN, Khan Behlol AA, Veerappan A, Thiagarajan R. Sulfidation modulates the toxicity of biogenic copper nanoparticles. RSC Adv 2015. [DOI: 10.1039/c4ra17322h] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
First report to show sulfidation reduces CuNP toxicity in vivo. Sulfidation lowered oxidative stress and liver pathology, protected biochemical components, prevented micronucleus formation – strategy for reducing environmental impact of nanoparticles.
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Affiliation(s)
- U. S. Dharsana
- Department of Bioengineering
- School of Chemical & Biotechnology
- SASTRA University
- Thanjavur 613401
- India
| | - M. K. N. Sai Varsha
- Department of Bioengineering
- School of Chemical & Biotechnology
- SASTRA University
- Thanjavur 613401
- India
| | - Ayaz Ahmed Khan Behlol
- Department of Chemistry
- School of Chemical & Biotechnology
- SASTRA University
- Thanjavur 613401
- India
| | - Anbazhagan Veerappan
- Department of Chemistry
- School of Chemical & Biotechnology
- SASTRA University
- Thanjavur 613401
- India
| | - Raman Thiagarajan
- Department of Bioengineering
- School of Chemical & Biotechnology
- SASTRA University
- Thanjavur 613401
- India
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44
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Ayaz Ahmed KB, Subramanian S, Sivasubramanian A, Veerappan G, Veerappan A. Preparation of gold nanoparticles using Salicornia brachiata plant extract and evaluation of catalytic and antibacterial activity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 130:54-58. [PMID: 24762573 DOI: 10.1016/j.saa.2014.03.070] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2013] [Revised: 03/03/2014] [Accepted: 03/21/2014] [Indexed: 06/03/2023]
Abstract
The current study deals with the synthesis of gold nanoparticles (AuNPs) using Salicornia brachiata (Sb) and evaluation of their antibacterial and catalytic activity. The SbAuNPs showed purple color with a characteristic surface plasmon resonance peak at 532 nm. Scanning electron microscopy and transmission electron microscopy revealed polydispersed AuNPs with the size range from 22 to 35 nm. Energy dispersive X-ray and thin layer X-ray diffraction analysis clearly shows that SbAuNPs was pure and crystalline in nature. As prepared gold nanoparticles was used as a catalyst for the sodium borohydride reduction of 4-nitro phenol to 4-amino phenol and methylene blue to leucomethylene blue. The green synthesized nanoparticles exhibited potent antibacterial activity against the pathogenic bacteria, as evidenced by their zone of inhibition. In addition, we showed that the SbAuNPs in combination with the regular antibiotic, ofloxacin, exhibit superior antibacterial activity than the individual.
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Affiliation(s)
- Khan Behlol Ayaz Ahmed
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA University, Thanjavur, Tamil Nadu, India
| | - Swetha Subramanian
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA University, Thanjavur, Tamil Nadu, India
| | - Aravind Sivasubramanian
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA University, Thanjavur, Tamil Nadu, India
| | - Ganapathy Veerappan
- SKKU Advanced Institute of Nano Technology, Sungkyunkwan University, Suwon, South Korea
| | - Anbazhagan Veerappan
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA University, Thanjavur, Tamil Nadu, India.
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45
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Ahmed KBA, Kalla D, Uppuluri KB, Anbazhagan V. Green synthesis of silver and gold nanoparticles employing levan, a biopolymer from Acetobacter xylinum NCIM 2526, as a reducing agent and capping agent. Carbohydr Polym 2014; 112:539-45. [PMID: 25129779 DOI: 10.1016/j.carbpol.2014.06.033] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Revised: 06/05/2014] [Accepted: 06/13/2014] [Indexed: 10/25/2022]
Abstract
With a vision of finding greener materials to synthesize nanoparticles, we report the production and isolation of levan, a polysaccharide with repeating units of fructose, from Acetobacter xylinum NCIM2526. The isolated levan were characterized using potassium ferricyanide reducing power assay, Fourier transform infra-red (FTIR) spectroscopy and (1)H nuclear magnetic resonance spectroscopy ((1)H NMR). To exploit levan in nanotechnology, we present a simple and greener method to synthesize silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) using biopolymer, levan as both reducing and stabilizing agents. The morphology and stability of the AgNPs and AuNPs were examined by transmission electron microscopy (TEM) and UV-vis absorption (UV-vis) spectroscopy. The possible capping mechanism of the nanoparticles was postulated using FTIR studies. As synthesized biogenic nanoparticles showed excellent catalytic activity as evidenced from sodium borohydride mediated reduction of 4-nitro phenol and methylene blue.
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Affiliation(s)
- Khan Behlol Ayaz Ahmed
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA University, Thanjavur, Tamil Nadu, India
| | - Divya Kalla
- Department of Biotechnology, School of Chemical and Biotechnology, SASTRA University, Thanjavur, Tamil Nadu, India
| | - Kiran Babu Uppuluri
- Department of Biotechnology, School of Chemical and Biotechnology, SASTRA University, Thanjavur, Tamil Nadu, India.
| | - Veerappan Anbazhagan
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA University, Thanjavur, Tamil Nadu, India.
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46
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Ayaz Ahmed KB, Subramaniam S, Veerappan G, Hari N, Sivasubramanian A, Veerappan A. β-Sitosterol-d-glucopyranoside isolated from Desmostachya bipinnata mediates photoinduced rapid green synthesis of silver nanoparticles. RSC Adv 2014. [DOI: 10.1039/c4ra10626a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A sunlight-induced synthesis of silver nanoparticles using β-sitosterol-d-glucopyranoside, a bio-surfactant isolated from the Indian sacred grass Desmostachya bipinnata.
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Affiliation(s)
- Khan Behlol Ayaz Ahmed
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur – 613 401, India
| | - Shankar Subramaniam
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur – 613 401, India
| | - Ganapathy Veerappan
- SKKU Advanced Institute of Nano Technology
- Sungkyunkwan University
- Suwon, South Korea
| | - Natarajan Hari
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur – 613 401, India
| | - Aravind Sivasubramanian
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur – 613 401, India
| | - Anbazhagan Veerappan
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur – 613 401, India
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