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Li ZR, Jia RB, Cai X, Luo D, Chen C, Zhao M. Characterizations of food-derived ellagic acid-Undaria pinnatifida polysaccharides solid dispersion and its benefits on solubility, dispersity and biotransformation of ellagic acid. Food Chem 2023; 413:135530. [PMID: 36758386 DOI: 10.1016/j.foodchem.2023.135530] [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: 08/16/2022] [Revised: 01/03/2023] [Accepted: 01/18/2023] [Indexed: 01/24/2023]
Abstract
The current study was aimed to enhance the solubility, dispersibility and biotransformation efficacy of ellagic acid (EA) by preparing food-derived ellagic acid-Undaria pinnatifida polysaccharides solid dispersion (EA/UPP SD). The results demonstrated that the solubility of EA/UPP SD was improved from 0.014 mg/mL to 0.383 mg/mL, and the enhancement was related to converting to a more amorphous state and restraining its self-aggregation during the mechanochemical process. The structure of EA/UPP SDs was mostly maintained by hydrogen bonds and hydrophobic interactions between EA and UPP. Moreover, the result of in vitro anaerobic incubations showed the biotransformation process was improved with EA/UPP SD addition to substrate due to the advance of microbial accessibility in EA dispersion. Altogether, these results indicated that the EA/UPP SDs expanded the application of EA by increasing the solubility and dispersity, and provided a theoretical basis for bioconversion efficiency enhancement.
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Affiliation(s)
- Zhao-Rong Li
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Chaozhou 521000, China
| | - Rui-Bo Jia
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China; Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Chaozhou 521000, China.
| | - Xueyuan Cai
- Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Chaozhou 521000, China
| | - Donghui Luo
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China; Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Chaozhou 521000, China
| | - Chong Chen
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China; Hainan Key Laboratory of Storage and Processing of Fruits and Vegetables, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang 524001, China
| | - Mouming Zhao
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Chaozhou 521000, China.
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Sampath G, Chen YY, Rameshkumar N, Krishnan M, Nagarajan K, Shyu DJH. Biologically Synthesized Silver Nanoparticles and Their Diverse Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3126. [PMID: 36144915 PMCID: PMC9500900 DOI: 10.3390/nano12183126] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/22/2022] [Accepted: 09/06/2022] [Indexed: 05/14/2023]
Abstract
Nanotechnology has become the most effective and rapidly developing field in the area of material science, and silver nanoparticles (AgNPs) are of leading interest because of their smaller size, larger surface area, and multiple applications. The use of plant sources as reducing agents in the fabrication of silver nanoparticles is most attractive due to the cheaper and less time-consuming process for synthesis. Furthermore, the tremendous attention of AgNPs in scientific fields is due to their multiple biomedical applications such as antibacterial, anticancer, and anti-inflammatory activities, and they could be used for clean environment applications. In this review, we briefly describe the types of nanoparticle syntheses and various applications of AgNPs, including antibacterial, anticancer, and larvicidal applications and photocatalytic dye degradation. It will be helpful to the extent of a better understanding of the studies of biological synthesis of AgNPs and their multiple uses.
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Affiliation(s)
- Gattu Sampath
- Department of Biological Science and Technology, National Pingtung University of Science and Technology, Pingtung 912301, Taiwan
- Department of Zoology, School of Life Sciences, Periyar University, Salem 636011, India
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology, New Delhi 110016, India
| | - Yih-Yuan Chen
- Department of Biochemical Science and Technology, National Chiayi University, Chiayi City 600355, Taiwan
| | | | | | - Kayalvizhi Nagarajan
- Department of Zoology, School of Life Sciences, Periyar University, Salem 636011, India
| | - Douglas J. H. Shyu
- Department of Biological Science and Technology, National Pingtung University of Science and Technology, Pingtung 912301, Taiwan
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Investigation of ellagic acid rich-berry extracts directed silver nanoparticles synthesis and their antimicrobial properties with potential mechanisms towards Enterococcus faecalis and Candida albicans. J Biotechnol 2021; 341:155-162. [PMID: 34601019 DOI: 10.1016/j.jbiotec.2021.09.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 09/25/2021] [Accepted: 09/27/2021] [Indexed: 12/13/2022]
Abstract
The essential goals of this present study are to elucidate the formation mechanism of ellagic acid rich-blackberry, BBE, (Rubus fruticosus L.) and raspberry, RBE, (Rubus idaeus L.) extracts directed silver nanoparticles and to investigate thier antimicrobial properties towards model dental pathogens E. faecalis and C. albicans compared to BBE, RBE, NaOCl, CHX and EDTA. Both %5 w/w of BBE and RBE reacted with 5 mM Ag + ions at room temperature (25 °C) under mild-stirring, the formation of BBE and RBE directed b@Ag NP and r@Ag NP was monitored over time by using an Uv-vis spectrophotometer. Both b@Ag and r@Ag NPs were also complementarily characterized with SEM and FT-IR. In terms of the antimicrobial studies, b@Ag NP, r@Ag NP, %5 BBE and RBE, 5 mM AgNO3, %5 NaOCl, %1,5 CHX and %15 EDTA were separately incubated with E. faecalis and C. albicans suspensions. The results were evaluated with student t-test using GraphPad Prism 8.0.1 statistical software (P < 0.05). While formation of b@Ag NP was confirmed with characteristic absorbance at ~435 nm in 20 min (min) of incubation, r@Ag NP did not give absorbance till 80 min owing to concentration of ellagic acid acted as a reducing and stabilizng agent for formation of the Ag NPs. Intrestingly, 50 ppm r@Ag NP inactivated ∼89% and ∼99% of E. faecalis and C. albicans cell, respectively, ∼25% and ∼40% cell inactivations for E. faecalis and C. albicans were observed respectively with 50 ppm b@Ag NP. We showed that 50 ppm r@Ag NP has effective antimicrobial property as much as mostly used %5 NaOCl and %1,5 CHX solutions.
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Ibrahim UH, Devnarain N, Govender T. Biomimetic strategies for enhancing synthesis and delivery of antibacterial nanosystems. Int J Pharm 2021; 596:120276. [DOI: 10.1016/j.ijpharm.2021.120276] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/09/2020] [Accepted: 12/19/2020] [Indexed: 12/19/2022]
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Kaabipour S, Hemmati S. A review on the green and sustainable synthesis of silver nanoparticles and one-dimensional silver nanostructures. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2021; 12:102-136. [PMID: 33564607 PMCID: PMC7849236 DOI: 10.3762/bjnano.12.9] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 12/14/2020] [Indexed: 05/08/2023]
Abstract
The significance of silver nanostructures has been growing considerably, thanks to their ubiquitous presence in numerous applications, including but not limited to renewable energy, electronics, biosensors, wastewater treatment, medicine, and clinical equipment. The properties of silver nanostructures, such as size, size distribution, and morphology, are strongly dependent on synthesis process conditions such as the process type, equipment type, reagent type, precursor concentration, temperature, process duration, and pH. Physical and chemical methods have been among the most common methods to synthesize silver nanostructures; however, they possess substantial disadvantages and short-comings, especially compared to green synthesis methods. On the contrary, the number of green synthesis techniques has been increasing during the last decade and they have emerged as alternative routes towards facile and effective synthesis of silver nanostructures with different morphologies. In this review, we have initially outlined the most common and popular chemical and physical methodologies and reviewed their advantages and disadvantages. Green synthesis methodologies are then discussed in detail and their advantages over chemical and physical methods have been noted. Recent studies are then reviewed in detail and the effects of essential reaction parameters, such as temperature, pH, precursor, and reagent concentration, on silver nanostructure size and morphology are discussed. Also, green synthesis techniques used for the synthesis of one-dimensional (1D) silver nanostructures have been reviewed, and the potential of alternative green reagents for their synthesis has been discussed. Furthermore, current challenges regarding the green synthesis of 1D silver nanostructures and future direction are outlined. To sum up, we aim to show the real potential of green nanotechnology towards the synthesis of silver nanostructures with various morphologies (especially 1D ones) and the possibility of altering current techniques towards more environmentally friendly, more energy-efficient, less hazardous, simpler, and cheaper procedures.
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Affiliation(s)
- Sina Kaabipour
- School of Chemical Engineering, Oklahoma State University, Stillwater, Oklahoma, 74078, USA
| | - Shohreh Hemmati
- School of Chemical Engineering, Oklahoma State University, Stillwater, Oklahoma, 74078, USA
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Polyphenols profile of pomegranate leaves and their role in green synthesis of silver nanoparticles. Sci Rep 2020; 10:14851. [PMID: 32908245 PMCID: PMC7481211 DOI: 10.1038/s41598-020-71847-5] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 08/19/2020] [Indexed: 11/30/2022] Open
Abstract
The current study reports on polyphenols profile of pomegranate leaves (PL) Punica granatum grown in Egypt and exhibiting their role in development of an eco-friendly method of green synthesis of silver nanoparticles (AgNPs). PL aqueous alcohol extract was fractionated, the major phenolic compound was isolated from the polyphenols rich fraction (ethyl acetate fraction) and identified by conventional and spectroscopic methods of analysis as ellagic acid. Furthermore, the fraction was standardized and analysed using UPLC-PDA-UV and LC–MS-MS techniques revealing tentative identification of 23 polyphenolic compounds, quantifying ellagic acid as 43.14 ± 0.57 μg/mg of the fraction. AgNPs were successfully synthesized with the aid of polyphenols rich fraction. This is the first report revealing the systematic optimization of the green synthesis process using various independent variables. AgNPs were characterized by adopting UV–Vis spectroscopy, FTIR, XRD, and SEM, which revealed strong SPR band within average of λ max 425 nm and polygonal shaped nanoparticles of 26.22 nm size, respectively. The antimicrobial efficacies of AgNPs and polyphenols rich fraction were tested against Gram-positive bacteria (Bacillus subtilis, Staphylococcus aureus, and Sarcina lutea), Gram-negative bacteria (Salmonella paratyphi, Escherichia coli, and Pseudomonas aeruginosa) and fungi (Candida albicans). AgNPs showed a concentration-dependent activity against all the tested microorganisms.
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Evtyugin DD, Magina S, Evtuguin DV. Recent Advances in the Production and Applications of Ellagic Acid and Its Derivatives. A Review. Molecules 2020; 25:molecules25122745. [PMID: 32545813 PMCID: PMC7355634 DOI: 10.3390/molecules25122745] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/10/2020] [Accepted: 06/11/2020] [Indexed: 01/16/2023] Open
Abstract
Ellagitannins (ETs), characterized by their diversity and chemical complexity, belong to the class of hydrolysable tannins that, via hydrolysis under acidic or alkaline conditions, can yield ellagic acid (EA). They are mostly found as a part of extractives in angiosperms. As known antioxidants and chelators, EA and EA derivatives are drawing an increasing interest towards extensive technical and biomedical applications. The latter ones include possible antibacterial, antifungal, antiviral, anti-inflammatory, hepato- and cardioprotective, chemopreventive, neuroprotective, anti-diabetic, gastroprotective, antihyperlipidemic, and antidepressant-like activities, among others. EA’s synthesis and production challenges prompt further research on new methods and alternative sources. Conventional and prospective methods and raw materials for the production of EA and its derivatives are reviewed. Among the potential sources of EA, the residues and industrial streams of the pulp industry have been highlighted and considered as an alluring alternative in terms of commercial exploitation.
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Photocatalytic and optical properties of NiO added Nephelium lappaceum L. peel extract: An attempt to convert waste to a valuable product. Heliyon 2019; 5:e01751. [PMID: 31193383 PMCID: PMC6526299 DOI: 10.1016/j.heliyon.2019.e01751] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 01/14/2019] [Accepted: 05/14/2019] [Indexed: 11/24/2022] Open
Abstract
In our present study, we have reported the fabrication of a simple, low-cost and ultra-violet active Nickel oxide Substituted Nephelium lappaceum L. peel extract photocatalyst. The synthesized photocatalyst samples were characterized by a combination of various physicochemical techniques. The degradation of Rhodamin b (RhB) shows excellent durability and recyclability properties. The remarkable enhancement in photoactivity under ultra-violet light irradiation can be attributed to the decrease in band gap by plant extract substitution. In our investigation, we report for the first time the synthesized NiO NPs using Rambutan (Nephelium lappaceum L.) undergo photocatalytic activity studies against cationic dye, Rhodamin b under UV light illumination. The result shows that the NiO NPs shows high degradation activity against RhB (92.3%). A plausible mechanism for the formation of NiO NPs from the biological source was also proposed. The outcome of the present study is an effective approach to design environmental friendly material for treating dying industry effluent.
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Amini SM. Preparation of antimicrobial metallic nanoparticles with bioactive compounds. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 103:109809. [PMID: 31349497 DOI: 10.1016/j.msec.2019.109809] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 05/08/2019] [Accepted: 05/27/2019] [Indexed: 01/25/2023]
Abstract
Despite the all recent advancements in medicine, infectious diseases continue to be major causes of death worldwide. Developing nanomaterials as preventive and therapeutic agents against infectious diseases has been one of the research priorities in medicine. However, the application of metal nanoparticles as antimicrobial agents is hampered due to environmental and safety concerns. Using green chemistry, researchers can produce biocompatible nanoparticles that have fewer detrimental effects on human health and the environment. Although chemical compounds have been considered as traditional sources for producing nanomaterials, a wide variety of biocompatible plant-derived secondary metabolites have recently been introduced that can be used to synthesize and stabilize metal nanoparticles. These metabolites have shown potent antibacterial effects making them suitable substitutes for the chemical agents in nanoparticle synthesis. This review has focused on the antimicrobial properties of metal nanoparticles synthesized using plant-derived secondary metabolites instead of crude extract. The mechanisms of metal nanoparticles synthesis and antimicrobial activity are also discussed for different phytochemicals and metal nanoparticles. Finally, the evaluation of the toxicity and safety of phytochemicals coated metal nanoparticles has been conducted. I believe that this is the first review on the antimicrobial and other biological properties of metal nanoparticles synthesized or coated utilizing specific plant-derived secondary metabolites.
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Affiliation(s)
- Seyed Mohammad Amini
- Radiation Biology Research Center, Iran University of Medical Sciences, Tehran, Iran.
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Mandal A, Grupp A, Schwederski B, Kaim W, Lahiri GK. Noninnocently Behaving Bridging Anions of the Widely Distributed Antioxidant Ellagic Acid in Diruthenium Complexes. Inorg Chem 2015; 54:10049-57. [DOI: 10.1021/acs.inorgchem.5b01868] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Abhishek Mandal
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India
| | - Anita Grupp
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany
| | - Brigitte Schwederski
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany
| | - Wolfgang Kaim
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany
| | - Goutam Kumar Lahiri
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India
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Yuvakkumar R, Suresh J, Saravanakumar B, Joseph Nathanael A, Hong SI, Rajendran V. Rambutan peels promoted biomimetic synthesis of bioinspired zinc oxide nanochains for biomedical applications. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 137:250-8. [PMID: 25228035 DOI: 10.1016/j.saa.2014.08.022] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 07/12/2014] [Accepted: 08/07/2014] [Indexed: 05/22/2023]
Abstract
A naturally occurring rambutan peel waste was employed to synthesis bioinspired zinc oxide nanochains. Rambutan peels has the ability of ligating zinc ions as a natural ligation agent resulting in zinc oxide nanochains formation due to its extended polyphenolic system over incubation period. Successful formation of zinc oxide nanochains was confirmed employing transmission electron microscopy studies. About 60% and ∼40% cell viability was lost and 50% and 10% morphological change was observed in 7 and 4 days incubated ZnO treated cells compared with control. Moreover, 50% and 55% of cell death was observed at 24 and 48 h incubation with 7 days treated ZnO cells and hence alters and disturbs the growth of cancer cells and could be used for liver cancer cell treatment.
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Affiliation(s)
- R Yuvakkumar
- Department of Nanomaterials Engineering, Chungnam National University, Daejeon 305-764, South Korea
| | - J Suresh
- Department of Chemistry, Anna University College of Engineering, Kanchipuram 631 552, Tamil Nadu, India
| | - B Saravanakumar
- Center for Nanoscience and Technology, K.S. Rangasamy College of Technology, Tiruchengode 637 215, Tamil Nadu, India
| | - A Joseph Nathanael
- Department of Nano, Medical and Polymer Materials, Yeungnam University, Gyeongsan 712-749, South Korea
| | - Sun Ig Hong
- Department of Nanomaterials Engineering, Chungnam National University, Daejeon 305-764, South Korea.
| | - V Rajendran
- Center for Nanoscience and Technology, K.S. Rangasamy College of Technology, Tiruchengode 637 215, Tamil Nadu, India.
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Sunflower oil mediated biomimetic synthesis and cytotoxicity of monodisperse hexagonal silver nanoparticles. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 44:209-15. [DOI: 10.1016/j.msec.2014.08.019] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 07/14/2014] [Accepted: 08/02/2014] [Indexed: 02/07/2023]
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Yuvakkumar R, Nathanael AJ, Hong SI. Inorganic complex intermediate Co3O4nanostructures using green ligation from natural waste resources. RSC Adv 2014. [DOI: 10.1039/c4ra07646j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Yuvakkumar R, Suresh J, Nathanael AJ, Sundrarajan M, Hong SI. Novel green synthetic strategy to prepare ZnO nanocrystals using rambutan (Nephelium lappaceum L.) peel extract and its antibacterial applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 41:17-27. [PMID: 24907732 DOI: 10.1016/j.matlet.2014.04.112] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 03/11/2014] [Accepted: 04/07/2014] [Indexed: 05/26/2023]
Abstract
In the present investigation, we report a sustainable novel green synthetic strategy to synthesis zinc oxide nanocrystals. This is the first report on sustainable biosynthesis of zinc oxide nanocrystals employing Nephelium lappaceum L., peel extract as a natural ligation agent. Green synthesis of zinc oxide nanocrystals was carried out via zinc-ellagate complex formation using rambutan peel wastes. The successful formation of zinc oxide nanocrystals was confirmed employing standard characterisation studies. A possible mechanism for the formation of ZnO nanocrystals with rambutan peel extract was also proposed. The prepared ZnO nanocrystals were coated on the cotton fabric and their antibacterial activity were analyzed. ZnO nanocrystals coated cotton showed good antibacterial activity towards Escherichia coli (E. coli), gram negative bacteria and Staphylococcus aureus (S. aureus), gram positive bacteria.
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Affiliation(s)
- R Yuvakkumar
- Department of Nanomaterials Engineering, Chungnam National University, Daejeon, 305-764, South Korea
| | - J Suresh
- Advanced Green Chemistry Lab, Department of Industrial Chemistry, School of Chemistry, Alagappa University, Karaikudi - 630 003, Tamil Nadu, India
| | - A Joseph Nathanael
- Department of Nano, Medical and Polymer Materials, Yeungnam University, Gyeongsan 712-749, South Korea
| | - M Sundrarajan
- Advanced Green Chemistry Lab, Department of Industrial Chemistry, School of Chemistry, Alagappa University, Karaikudi - 630 003, Tamil Nadu, India.
| | - S I Hong
- Department of Nanomaterials Engineering, Chungnam National University, Daejeon, 305-764, South Korea.
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Dubey SP, Dwivedi AD, Lahtinen M, Lee C, Kwon YN, Sillanpaa M. Protocol for development of various plants leaves extract in single-pot synthesis of metal nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 103:134-142. [PMID: 23257341 DOI: 10.1016/j.saa.2012.11.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Revised: 10/31/2012] [Accepted: 11/05/2012] [Indexed: 06/01/2023]
Abstract
This article is aimed to extend a simple protocol for preparation of various plant leaves extract and their application to green synthesis of the metallic nanoparticles. Five plant leaves extract showed mild reduction and stabilization ability for silver and gold nanoparticles (AgNPs and AuNPs) at room temperature. The particle size range varied from 25 to 42 nm and 21 to 47 nm for AgNPs and AuNPs, respectively. Plant leaves extract-mediated nanoparticles were characterized to confirm the shape, size, crystallinity, and content using different spectroscopic investigations. Differences in stability of nanoparticles at different pH were also measured by zeta potential.
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Affiliation(s)
- Shashi Prabha Dubey
- School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology, 100 Banyeon-ri, Eonyang-eup, Ulju-gun, Ulsan 698-805, Republic of Korea.
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BARNABY STACEYN, SARKER NAZMULH, BANERJEE IPSITAA. ELLAGIC ACID DIRECTED GROWTH OF Au–Pt BIMETALLIC NANOPARTICLES AND THEIR CATALYTIC APPLICATIONS. INTERNATIONAL JOURNAL OF NANOSCIENCE 2013. [DOI: 10.1142/s0219581x12500378] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In this work, we report the facile formation of bimetallic nanoparticles of Au–Pt in the presence of the plant polyphenol ellagic acid (EA). It was found that EA formed micro-fibrillar assemblies, which aggregated into micro-bundles under aqueous conditions. Those micro-bundles acted as templates for the growth of Au nanoparticles, as well as bimetallic Au–Pt nanoparticles biomimetically. At higher concentrations of EA, it was observed that in addition to forming fibrous micro-bundles, columnar assemblies of EA were formed in the presence of the metal nanoparticles. The formation of the assemblies was found to be concentration dependent. It appears that upon binding to metal ions and subsequent formation of the nanoparticles, morphological changes occur in the case of EA assemblies. The morphological changes observed were probed by electron microscopy. Further, the ability of the materials to degrade the toxic aromatic nitro compound 2-methoxy-4-nitroaniline was explored, where 50% degradation was observed within 15 min, indicating that such hybrid materials may have potential applications in environmental remediation.
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Affiliation(s)
- STACEY N. BARNABY
- Department of Chemistry, Fordham University, 441East Fordham Road, Bronx, NY 10458, USA
| | - NAZMUL H. SARKER
- Department of Chemistry, Fordham University, 441East Fordham Road, Bronx, NY 10458, USA
| | - IPSITA A. BANERJEE
- Department of Chemistry, Fordham University, 441East Fordham Road, Bronx, NY 10458, USA
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Parida UK, Rout N, Bindhani BK. <i>In vitro</i> properties of chitosan nanoparticles induce apoptosis in human lymphoma SUDHL-4 cell line. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/abb.2013.412148] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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