1
|
Zuhrotun A, Oktaviani DJ, Hasanah AN. Biosynthesis of Gold and Silver Nanoparticles Using Phytochemical Compounds. Molecules 2023; 28:molecules28073240. [PMID: 37050004 PMCID: PMC10096681 DOI: 10.3390/molecules28073240] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/27/2023] [Accepted: 04/04/2023] [Indexed: 04/14/2023] Open
Abstract
Gold and silver nanoparticles are nanoparticles that have been widely used in various fields and have shown good benefits. The method of nanoparticle biosynthesis utilizing plant extracts, also known as green synthesis, has become a promising method considering the advantages it has compared to other synthesis methods. This review aims to give an overview of the phytochemical compounds in plants used in the synthesis of gold and silver nanoparticles, the nanoparticle properties produced using plant extracts based on the concentration and structure of phytochemical compounds, and their applications. Phytochemical compounds play an important role as reducing agents and stabilizers in the stages of the synthesis of nanoparticles. Polyphenol compounds, reducing sugars, and proteins are the main phytochemical compounds that are responsible for the synthesis of gold and silver nanoparticles. The concentration of phytochemical compounds affects the physical properties, stability, and activity of nanoparticles. This is important to know to be able to overcome limitations in controlling the physical properties of the nanoparticles produced. Based on structure, the phytochemical compounds that have ortho-substituted hydroxyl result in a smaller size and well-defined shape, which can lead to greater activity and stability. Furthermore, the optimal condition of the biosynthesis process is required to gain a successful reaction that includes setting the metal ion concentration, temperature, reaction time, and pH.
Collapse
Affiliation(s)
- Ade Zuhrotun
- Department of Pharmaceutical Biology, Faculty of Pharmacy, Universitas Padjadjaran, Jalan Raya Bandung-Sumedang KM 21 Jatinangor, Bandung 45363, Indonesia
| | - Dede Jihan Oktaviani
- Department of Pharmaceutical Biology, Faculty of Pharmacy, Universitas Padjadjaran, Jalan Raya Bandung-Sumedang KM 21 Jatinangor, Bandung 45363, Indonesia
| | - Aliya Nur Hasanah
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Jalan Raya Bandung-Sumedang KM 21 Jatinangor, Bandung 45363, Indonesia
| |
Collapse
|
2
|
Li S, Mu B, Zhang H, Kang Y, Wang A. Incorporation of silver nanoparticles/curcumin/clay minerals into chitosan film for enhancing mechanical properties, antioxidant and antibacterial activity. Int J Biol Macromol 2022; 223:779-789. [PMID: 36370856 DOI: 10.1016/j.ijbiomac.2022.11.046] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 11/03/2022] [Accepted: 11/06/2022] [Indexed: 11/11/2022]
Abstract
It is popular that natural organics are served as green reducing and end-capping reagent for synthesis of functional nanoparticles. In this study, curcumin, a natural pigment, was employed to prepare silver nanoparticles (AgNPs) as a coloring, reducing and end-capping agent by an eco-friendly, economic and facile approach in the presence of different clay minerals, including palygorskite, montmorillonite and mixed-dimensional palygorskite clay. It was found that the phenolic hydroxyl groups or carbonyl groups of curcumin played a crucial role to reduce silver ions into AgNPs with the ginger color. Meanwhile, incorporation of clay minerals could induce the in-situ heterogeneous nucleation of AgNPs on the surface or/and interlayer of the involved clay minerals. It effectively prevented from the aggregations and resulted in uniform dispersion of AgNPs with a diameter of 30-40 nm. Furthermore, the as-prepared nanocomposites exhibited a higher antioxidant (>90%) and antibacterial activity. Due to the synergistic effect of each component among the nanocompositions, the nanocomposites derived from different clay minerals were employed as multifunctional nanofillers to design functional chitosan composite films. By contrast, the chitosan composite films containing curcumin-capped AgNPs/mixed-dimensional palygorskite clay nanocomposites exhibited the best mechanical properties, antioxidant and antibacterial activities. Compared with the chitosan films, the tensile strength and elongation at break of composite films increased by 15.90 MPa and 27.27%, respectively. The inactivation rate of the composite films against Escherichia coli and Staphylococcus aureus had reached 100%. Therefore, the obtained composite film with the ginger color exhibited excellent mechanical, water resistance, antioxidant and antibacterial properties, and it was expected to develop a great potential functional packaging materials.
Collapse
Affiliation(s)
- Shue Li
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Bin Mu
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China.
| | - Hong Zhang
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Yuru Kang
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China
| | - Aiqin Wang
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China.
| |
Collapse
|
3
|
Synthesis of Ag nanoparticles by Celery leaves extract supported on magnetic biochar substrate, as a catalyst for the reduction reactions. Sci Rep 2022; 12:13678. [PMID: 35953703 PMCID: PMC9372062 DOI: 10.1038/s41598-022-18131-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 05/11/2022] [Indexed: 11/29/2022] Open
Abstract
Green synthesis of a noble metal such as Ag nanoparticles is an enormously developed research area. In this study, a biochar/Fe3O4–Ag magnetic nanocatalyst was produced via a green path by using Celery stalk as a carbon-based substrate and Celery leaf extract as reducing and stabilizing agents to construct Ag nanoparticles. The synthesized nanocatalyst was determined using various techniques, such as UV–Vis spectroscopy, FT-IR spectroscopy, XRD (X-ray diffraction), SEM/EDX spectroscopy (scanning electron microscopy/energy-dispersive X-ray), TEM (transmission electron microscopy), and VSM (vibrating sample magnetometer). To survey the catalytic action of the biochar/Fe3O4–Ag nanocatalyst, it was used in the reduction reaction of disparate nitroaromatics, aldehydes, and ketones. This catalyst has demonstrated good characteristics in terms of the amount, reusability, recoverability, activity, and structural integrity of the catalyst during the reaction. In addition, biochar/Fe3O4–Ag could be detached magnetically and recycled multiple times without significantly reducing its catalytic performance.
Collapse
|
4
|
Xi J, Kan W, Zhu Y, Huang S, Wu L, Wang J. Synthesis of silver nanoparticles using Eucommia ulmoides extract and their potential biological function in cosmetics. Heliyon 2022; 8:e10021. [PMID: 35942280 PMCID: PMC9356174 DOI: 10.1016/j.heliyon.2022.e10021] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 06/12/2022] [Accepted: 07/18/2022] [Indexed: 11/15/2022] Open
Abstract
Silver nanoparticles (AgNPs) synthesized from plant extracts have recently emerged as a rapidly growing field with numerous applications in pharmaceutical and clinical contexts. The purpose of this research is to come up with a novel method for the biosynthesis of silver nanoparticles that use Eucommia ulmoides leaf extract as a reducing agent. The synthesis of AgNPs was confirmed using UV-vis spectroscopy, and the properties of AgNPs were characterized using Transmission Electron Microscope, Fourier Infrared Spectrometer, X-ray diffraction, Thermogravimetric Analysis, and Zeta potential. The results showed that the AgNPs exhibited a characteristic absorption peak at 430 nm, their diameter ranged from 4 nm to 52 nm, and C, O, and Cl elements, which might represent flavonoids and phenolic components absorbed on the surface of AgNPs. The zeta potential of AgNPs was found to be −30.5 mV, which indicates repulsion among AgNPs and they have good dispersion stability. AgNPs have been found to suppress the tyrosinase activity both in mushroom tyrosinase and A375 cells, as well as diminish ROS formation in HaCat cells. According to this study, AgNPs is a novel material that can enhance skin health by preventing melanin development.
Collapse
Affiliation(s)
- Jinfeng Xi
- The Center for Ion Beam Bioengineering and Green Agriculture, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, Anhui, China
- University of Science and Technology of China, Hefei 230026, Anhui, China
| | - Wenjie Kan
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - Yan Zhu
- The Center for Ion Beam Bioengineering and Green Agriculture, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, Anhui, China
- University of Science and Technology of China, Hefei 230026, Anhui, China
| | - Shengwei Huang
- Institute of Biomedical and Health Science, School of Life and Health Science, Anhui Science and Technology University, Fengyang, Anhui, 233100, China
- Corresponding author.
| | - Lifang Wu
- The Center for Ion Beam Bioengineering and Green Agriculture, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, Anhui, China
- University of Science and Technology of China, Hefei 230026, Anhui, China
- Zhongke Taihe Experimental Station, Taihe 236626, Anhui, China
- Corresponding authors at: The Center for Ion Beam Bioengineering and Green Agriculture, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, Anhui, China.
| | - Jun Wang
- The Center for Ion Beam Bioengineering and Green Agriculture, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, Anhui, China
- University of Science and Technology of China, Hefei 230026, Anhui, China
- Zhongke Taihe Experimental Station, Taihe 236626, Anhui, China
- Corresponding authors at: The Center for Ion Beam Bioengineering and Green Agriculture, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, Anhui, China.
| |
Collapse
|
5
|
Zhang J, Liu J, Yan H, Wang X, Dong H. Novel Approach of Phyto-Mediated Thermo-Sensitive and Biocompatible Nano-Formulation to Improve Anti-Microbial Efficacy Against Pathogenic Bacterial for the Treatment of Wound Infections. J BIOMATER TISS ENG 2022. [DOI: 10.1166/jbt.2022.2877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Design and development of novel methods for the synthesis of metal nanopartilces (MNPs) was greatly attracted by research community due to various applications. We described a greener strategy for the synthesis of silver nanoformulation (Ag NF) using leaf extract of Ziziphus zizyphus
and then surface functionalized using P(NIPAM-co-MQ). The synthesized AgNPs were characterized by UV-visible spectroscopy and Transmission electron microscopy. Further, the functionalized AgNPs were characterized XPS and x-ray diffraction studies. The design of bioactive and biocompatible
Ag nanoformulation preparations have been provide promising alternative source for bacterial-related therapies. The developed Ag NF have demonstrated predominant bactericidal action with highinhibition rate and long-term efficiency against clinically approved bacterial pathogens (S. aureus
and E. coli), which greatly contributed treatment of wound infections. The observations of the present study could provide new avenue for the antimicrobial treatment of wound therapy
Collapse
Affiliation(s)
- Jing Zhang
- Ophthalmic Clinic, Qingdao Municipal Hospital, 266071, PR China
| | - Jie Liu
- Section for Outpatients, Qingdao Municipal Hospital, 266071, PR China
| | - Hui Yan
- Operating Room, Wulian People’s Hospital, 262399, PR China
| | - Xuyu Wang
- Ophthalmic Clinic, Qingdao Municipal Hospital, 266071, PR China
| | - Huiyan Dong
- Department of Gastroenterology, Affiliated Hospital of Jining Medical College, 272007, PR China
| |
Collapse
|
6
|
Synthesis of Ziziphus spina-christi (Jujube) Root Methanol Extract Loaded Functionalized Silver Nanoparticle (ZS-Ag-NPs); Physiochemical Characterization and Effect of ZS-Ag-NPs on Adipocyte Maturation, Adipokine and Vascular Smooth Muscle Cell Interaction. NANOMATERIALS 2021; 11:nano11102563. [PMID: 34685001 PMCID: PMC8539395 DOI: 10.3390/nano11102563] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/17/2021] [Accepted: 09/17/2021] [Indexed: 11/17/2022]
Abstract
In this research, a simple, green approach was employed to synthesize silver nanoparticles with the aid of Ziziphus spina-christi (L.) methanol root extract, which can act as a reducing, capping agent to treat obesity and inflammation. Globally, Ziziphus spina-christi (Jujube) root is used in traditional therapy as a lipolysis promoter. GC-MS results confirmed the availability of kaempferol (flavonol), cannabinol and indole-3-carboxylic acid in Ziziphus spina-christi root methanol extract (ZSE). ZSE silver nanoparticles (ZS-Ag-NPs) were synthesized and their effect on mitochondrial fatty acid oxidation capacity and adipokine levels in maturing adipocytes were analyzed. Maturing adipocytes treated with 0.4 µg/dL of ZSE and ZS-Ag-NPs significantly reduced the lipid content in adipocytes by 64% and 82%, respectively. In addition, lipolysis-related genes such as LPL (1.9 fold), HSL (2.3 fold), PGC-1α (3 fold), UCP-1 (4.1 fold), PRDM16 (2 fold) and PPARα (2.7 fold) increased significantly in ZS-Ag-NPs treated maturing adipocytes. The ZS-Ag-NPs treatment significantly decreased insulin resistance and metabolic inflammation-related LTB4-R, TNF-α, IL-4 and STAT-6 mRNA levels. Mitochondrial thermogenesis stimulating capacity of ZS-Ag-NPs was further confirmed by the significantly enhanced CREB-1 and AMPK protein levels in adipocytes. Furthermore, ZS-Ag-NPs treated adipokines (condition media, CM) were treated with human umbilical vein endothelial cells (HUVECs) to determine cytotoxicity and pro-inflammatory stimulus capacity. We found that ZS-Ag-NPs treated adipocyte CM effectively increased mRNA expression levels of the vascular endothelial cell growth factor (VEGF), and down-regulated oxidative stress (LPO, eNOS, and HO) and vascular cell inflammation (ICAM, VCAM, TNF-α, IL-1β, and NF-κB). In conclusion, ZS-Ag-NPs displayed an action at the molecular level in mitochondrial fatty acid oxidation, decreased adipokine secretion in adipocytes, and enhanced vascular endothelial cell growth. This molecular mechanical action of ZS-Ag-NPs reduced effectively obesity progressions and metabolic inflammatory pathogenesis associated with aging.
Collapse
|
7
|
Abstract
In an effort to produce non-toxic and economically viable “green” protocols for waste water treatment, researchers are actively involved to develop versatile and effective silver nanoparticles (SNPs) as nano-catalyst from bio-based techniques. Since, p-nitrophenol (PNP) is one of the anthropogenic contaminants, considerable attention has been focused in catalytic degradability of PNP in wastewater treatment by curtailing serious effect on aquatic fauna. Ingestion of contaminants by aquatic organisms will not only affect the aquatic species but is also a potential threat to human health, especially if the toxic contaminants are involved in food chain. In this short report, we provided a comprehensive insight on few remarkable nanocatalysts especially based on SNPs and its biopolymer composites synthesized via ecofriendly “green” route. The beneficiality and catalytic performance of these silver nanocatalysts are concisely documented on standard model degradation reduction of PNP to p-aminophenol (PAP) in the presence of aqueous sodium borohydride. The catalytic degradation of PNP to PAP using SNPs follows pseudo first order kinetics involving six-electrons with lower activation energy. Furthermore, we provided a list of highly effective, recoverable, and economically viable SNPs, which demonstrated its potential as nanocatalysts by focusing its technical impact in the area of water remediation.
Collapse
|
8
|
Ayodhya D, Veerabhadram G. One-pot, aqueous synthesis of multifunctional biogenic Ag NPs for efficient 4-NP reduction, Hg2+ detection, bactericidal, and antioxidant activities. INORG NANO-MET CHEM 2020. [DOI: 10.1080/24701556.2020.1857407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Dasari Ayodhya
- Department of Chemistry, University College of Science, Osmania University, Hyderabad, Telangana State, India
| | - Guttena Veerabhadram
- Department of Chemistry, University College of Science, Osmania University, Hyderabad, Telangana State, India
| |
Collapse
|
9
|
Osman SM, Ayoub NA, Hafez SA, Ibrahim HA, El Raey MA, El-Emam SZ, Seada AA, Saadeldeen AM. Aldose reductase inhibitor form Cassia glauca: A comparative study of cytotoxic activity with Ag nanoparticles (NPs) and molecular docking evaluation. PLoS One 2020; 15:e0240856. [PMID: 33064762 PMCID: PMC7567391 DOI: 10.1371/journal.pone.0240856] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 10/04/2020] [Indexed: 11/18/2022] Open
Abstract
UPLC-MS/MS profiling of Cassia glauca leaves extract revealed the identification of 10 flavonoids. Kaempferol 3-O-β-D-rutinoside was isolated and studied for its cytotoxic activity. It showed high cytotoxic effects against MCF-7 (IC50 of 4.6±0.038 μg/ml) and HepG-2 (IC50 of 8.2±0.024 μg/ml) cancer cell lines, compared to the leaves extracts, their Ag nanoparticles, and doxorubicin. Moreover, Kaempferol 3-O-β-D-rutinoside exerted a synergistic cytotoxic effect with doxorubicin on MCF-7 cell lines. It was discovered as kinases and aldose reductase inhibitor while rationalizing its cytotoxic activity through molecular docking study. Thus, it is expected that the cardiotoxic effects of doxorubicin can be also decreased by using Kaempferol 3-O-β-D-rutinoside due to its aldose reductase inhibitory effect. These findings suggested that Kaempferol 3-O-β-D-rutinoside could be used in combination with chemotherapeutic drugs to increase the sensitivity to their cytotoxic activity and protect against their side effects.
Collapse
Affiliation(s)
- Samir M. Osman
- Department of Pharmacognosy, Faculty of Pharmacy, October 6 University, Giza, Egypt
| | - Nahla A. Ayoub
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
- Department of Pharmacology and Toxicology, Faculty of Medicine, Umm Al Qura University, Makkah, Saudi Arabia
| | - Safaa A. Hafez
- Department of Pharmacognosy, Faculty of Pharmacy, October 6 University, Giza, Egypt
| | - Haitham A. Ibrahim
- Department of Pharmacognosy, Faculty of Pharmacy, Helwan University, Cairo, Egypt
| | - Mohamed A. El Raey
- Department of Phytochemistry and Plant Systematics, National Research Center, Dokki, Giza, Egypt
| | - Soad Z. El-Emam
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, October 6 University, Giza, Egypt
| | - Ahmed A. Seada
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Amr M. Saadeldeen
- Department of Pharmacognosy, School of Pharmacy, Newgiza University, Giza, Egypt
| |
Collapse
|
10
|
Zayed MF, Mahfoze RA, El-kousy SM, Al-Ashkar EA. In-vitro antioxidant and antimicrobial activities of metal nanoparticles biosynthesized using optimized Pimpinella anisum extract. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124167] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
11
|
Moustafa NE, Mahmoud KEKF. Simple, green approach for the synthesis of solid support-embedded PdNPs for ligand exchange. IET Nanobiotechnol 2019; 13:382-386. [PMID: 31171742 DOI: 10.1049/iet-nbt.2018.5179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Green approaches have the potential to significantly reduce the costs and environmental impact of chemical syntheses. Here, the authors used green tea (GT) leaf extract to synthesise and anchor palladium nanoparticles (PdNPs) to silica. The synthesised PdNPs in GT extract were characterised by ultraviolet-visible spectroscopy, Fourier-transform infrared spectroscopy, X-ray diffraction, and transmission electron microscopy. PdNPs primarily formed as capped NPs dispersed in GT extract before reduction completed after 24 h. This capped phytochemical solution was employed as a green precursor solution to synthesise PdNP-embedded solid supports. The morphology of PdNPs anchored to silica differed to that of PdNPs in solution. Silica-embedded PdNPs was employed as a new ligand exchanger to isolate trace polycyclic aromatic sulphur heterocycles from a hydrocarbon matrix. The isolation efficiency of the new, greener ligand exchanger was the same as an efficient chemical ligand exchanger and may, therefore, hold promise for future applications.
Collapse
Affiliation(s)
- Nagy Emam Moustafa
- Analysis and Evaluation Department, Egyptian Petroleum Research Institute, 11727 Nasr City, Cairo, Egypt.
| | - Kout El Kloub Fares Mahmoud
- Department of Chemistry, Women's College for Arts, Science and Education, Ain Shams University, Fahmy Street, Heliopolis, Cairo, Egypt
| |
Collapse
|
12
|
Mostafa E, Fayed MAA, Radwan RA, Bakr RO. Centaurea pumilio L. extract and nanoparticles: A candidate for healthy skin. Colloids Surf B Biointerfaces 2019; 182:110350. [PMID: 31326622 DOI: 10.1016/j.colsurfb.2019.110350] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 06/14/2019] [Accepted: 07/06/2019] [Indexed: 01/09/2023]
Abstract
Centaurea pumilio was the subject of phytochemical and biological studies, and its extract was used in the green synthesis of silver nanoparticles (AgNPs). Liquid chromatography/electrospray ionization mass spectrometry allowed the tentative identification of twenty-nine phytoconstituents of C. pumilio methanolic extract (CME), while column chromatography led to the identification of eight phenolic compounds. The neutral red uptake method showed the safety of CME and AgNPs on skin cells (HaCaT cell lines), while their high antioxidant potentials were demonstrated based on their oxygen radical absorbance capacity, and these results were confirmed in vivo. Additionally, CME and AgNPs had promising abilities to retard the ageing process and combat dark spots by potently inhibiting collagenase, elastase and tyrosinase, in addition to antimicrobial activity against skin infection-causing strains, especially Staphylococcus aureus, which was further confirmed by the significant phagocytic activity of neutrophils via engulfment. This study presents C. pumilio as a candidate for healthy skin.
Collapse
Affiliation(s)
- Eman Mostafa
- Department of Pharmacognosy, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), 11787, Giza, Egypt
| | - Marwa A A Fayed
- Department of Pharmacognosy, Faculty of Pharmacy, University of Sadat City, Egypt
| | - Rasha A Radwan
- Biochemistry and Biotechnology Department, Faculty of Pharmacy & Drug Technology, Heliopolis University, Cairo, Egypt
| | - Riham O Bakr
- Department of Pharmacognosy, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), 11787, Giza, Egypt.
| |
Collapse
|
13
|
El Raey MA, El-Hagrassi AM, Osman AF, Darwish KM, Emam M. Acalypha wilkesiana flowers: Phenolic profiling, cytotoxic activity of their biosynthesized silver nanoparticles and molecular docking study for its constituents as Topoisomerase-I inhibitors. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.101243] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
14
|
Zayed MF, Eisa WH, El-Kousy SM, Mleha WK, Kamal N. Ficus retusa-stabilized gold and silver nanoparticles: Controlled synthesis, spectroscopic characterization, and sensing properties. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 214:496-512. [PMID: 30812012 DOI: 10.1016/j.saa.2019.02.042] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 12/15/2018] [Accepted: 02/16/2019] [Indexed: 06/09/2023]
Abstract
Ficus retusa was used as reducing and stabilizing agent in the green synthesis of silver and gold nanoparticles with high dispersion stability and controllable size and shape. The controlling of reaction conditions i.e. contact time, extract quantity, metal concentration, and pH value enables the tuning of the particle size and size distribution of the metal nanoparticles. UV-visible spectroscopy was used to follow the spectral profile changes of the surface plasmon resonance of the metal nanoparticles due to different treatments. The surface plasmon resonance varies between 400 and 432 nm and between 522 and 554 nm for silver and gold nanoparticles, respectively, depending on the different reaction parameters. Atomic force and transmission electron microscopy results confirmed the success of preparation of spherical silver (15 nm) and gold (10-25 nm) nanoparticles with narrow size-distribution. Fourier transform infrared spectroscopy suggested the phenolic compounds play the key role in the reduction and stabilizing of metal ions. The colorimetric sensitivity of silver and gold nanoparticles to detect the presence of heavy metals in water was studied.
Collapse
Affiliation(s)
- Mervat F Zayed
- Chemistry Department, Faculty of Science, Menoufia University, Egypt.
| | - Wael H Eisa
- Spectroscopy Department, Physics Division, National Research Center (NRC), Egypt
| | - Salah M El-Kousy
- Chemistry Department, Faculty of Science, Menoufia University, Egypt
| | - Walaa K Mleha
- Chemistry Department, Faculty of Science, Menoufia University, Egypt
| | - Nermeen Kamal
- Chemistry Department, Faculty of Science, Menoufia University, Egypt
| |
Collapse
|
15
|
Rostami‐Vartooni A, Moradi‐Saadatmand A. Green synthesis of magnetically recoverable Fe
3
O
4
/HZSM‐5 and its Ag nanocomposite using
Juglans regia
L. leaf extract and their evaluation as catalysts for reduction of organic pollutants. IET Nanobiotechnol 2019; 13:407-415. [DOI: 10.1049/iet-nbt.2018.5089] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
|
16
|
Haladu SA, Umoren SA, Ali SA, Solomon MM, Mohammed ARI. Synthesis, characterization and electrochemical evaluation of anticorrosion property of a tetrapolymer for carbon steel in strong acid media. Chin J Chem Eng 2019. [DOI: 10.1016/j.cjche.2018.07.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
17
|
Esawy MA, Ragab TI, Shalaby ASG, Basha M, Emam M. Evaluated bioactive component extracted from Punica granatum peel and its Ag NPs forms as mouthwash against dental plaque. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.101073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
18
|
Jang EY, Son YJ, Park SY, Yoo JY, Hwang DY, Park HC, Son HJ. Biological synthesis and characterisation of silver nanoparticles using Pseudomonas geniculata H10 for pharmaceutical activity. IET Nanobiotechnol 2018; 12:828-835. [PMID: 30104458 PMCID: PMC8676423 DOI: 10.1049/iet-nbt.2018.0014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 03/20/2018] [Accepted: 03/31/2018] [Indexed: 11/19/2022] Open
Abstract
In the present study, silver nanoparticles (SNPs) were synthesised for the first time using Pseudomonas geniculata H10 as reducing and stabilising agents. The synthesis of SNPs was the maximum when the culture supernatant was treated with 2.5 mM AgNO3 at pH 7 and 40°C for 10 h. The SNPs were characterised by field emission scanning electron microscopy-energy-dispersive spectroscopy, transmission electron microscopy, dynamic light scattering, X-ray diffraction and UV-vis spectroscopy. Fourier transform infrared spectroscopy indicated the presence of proteins, suggesting they may have been responsible for the reduction and acted as capping agents. The SNPs displayed 1,1-diphenyl-2-picrylhydrazyl (IC50 = 28.301 μg/ml) and 2,2'-azinobis-3-ethylbenzothiazoline-6-sulphonate (IC50 = 27.076 μg/ml) radical scavenging activities. The SNPs exhibited a broad antimicrobial spectrum against several human pathogenic Gram-positive and Gram-negative bacteria and Candida albicans. The antimicrobial action of SNPs was due to cell deformation resulting in cytoplasmic leakage and subsequent lysis. The authors' results indicate P. geniculata H10 could be used to produce antimicrobial SNPs in a facile, non-toxic, cost-effective manner, and that these SNPs can be used as effective growth inhibitors in various microorganisms, making them applicable to various biomedical and environmental systems. As far as the authors are aware, this study is the first to describe the potential biomedical applications of SNPs synthesised using P. geniculata.
Collapse
Affiliation(s)
- Eun-Young Jang
- College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang 627-706, Republic of Korea
| | - Yong-Jun Son
- College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang 627-706, Republic of Korea
| | - Soo-Yeun Park
- College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang 627-706, Republic of Korea
| | - Ji-Yeon Yoo
- College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang 627-706, Republic of Korea
| | - Dae-Youn Hwang
- College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang 627-706, Republic of Korea
| | - Hyean-Cheal Park
- College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang 627-706, Republic of Korea
| | - Hong-Joo Son
- College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang 627-706, Republic of Korea.
| |
Collapse
|
19
|
Desai MP, Sangaokar GM, Pawar KD. Kokum fruit mediated biogenic gold nanoparticles with photoluminescent, photocatalytic and antioxidant activities. Process Biochem 2018. [DOI: 10.1016/j.procbio.2018.03.027] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
20
|
Ivashchenko O, Peplińska B, Gapiński J, Flak D, Jarek M, Załęski K, Nowaczyk G, Pietralik Z, Jurga S. Silver and ultrasmall iron oxides nanoparticles in hydrocolloids: effect of magnetic field and temperature on self-organization. Sci Rep 2018; 8:4041. [PMID: 29511277 PMCID: PMC5840429 DOI: 10.1038/s41598-018-22426-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 02/23/2018] [Indexed: 11/13/2022] Open
Abstract
Micro/nanostructures, which are assembled from various nanosized building blocks are of great scientific interests due to their combined features in the micro- and nanometer scale. This study for the first time demonstrates that ultrasmall superparamagnetic iron oxide nanoparticles can change the microstructure of their hydrocolloids under the action of external magnetic field. We aimed also at the establishment of the physiological temperature (39 °C) influence on the self-organization of silver and ultrasmall iron oxides nanoparticles (NPs) in hydrocolloids. Consequences of such induced changes were further investigated in terms of their potential effect on the biological activity in vitro. Physicochemical characterization included X-ray diffraction (XRD), optical microscopies (SEM, cryo-SEM, TEM, fluorescence), dynamic light scattering (DLS) techniques, energy dispersive (EDS), Fourier transform infrared (FTIR) and ultraviolet-visible (UV-Vis) spectroscopies, zeta-potential and magnetic measurements. The results showed that magnetic field affected the hydrocolloids microstructure uniformity, fluorescence properties and photodynamic activity. Likewise, increased temperature caused changes in NPs hydrodynamic size distribution and in hydrocolloids microstructure. Magnetic field significantly improved photodynamic activity that was attributed to enhanced generation of reactive oxygen species due to reorganization of the microstructure.
Collapse
Affiliation(s)
- Olena Ivashchenko
- NanoBioMedical Centre, Adam Mickiewicz University in Poznań, 61614, Poznań, Poland.
| | - Barbara Peplińska
- NanoBioMedical Centre, Adam Mickiewicz University in Poznań, 61614, Poznań, Poland
| | - Jacek Gapiński
- Department of Molecular Biophysics, Adam Mickiewicz University in Poznań, 61614, Poznań, Poland
| | - Dorota Flak
- NanoBioMedical Centre, Adam Mickiewicz University in Poznań, 61614, Poznań, Poland
| | - Marcin Jarek
- NanoBioMedical Centre, Adam Mickiewicz University in Poznań, 61614, Poznań, Poland
| | - Karol Załęski
- NanoBioMedical Centre, Adam Mickiewicz University in Poznań, 61614, Poznań, Poland
| | - Grzegorz Nowaczyk
- NanoBioMedical Centre, Adam Mickiewicz University in Poznań, 61614, Poznań, Poland
| | - Zuzanna Pietralik
- Department of Macromolecular Physics, Adam Mickiewicz University in Poznań, 61614, Poznan, Poland
| | - Stefan Jurga
- NanoBioMedical Centre, Adam Mickiewicz University in Poznań, 61614, Poznań, Poland
| |
Collapse
|
21
|
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
| | | |
Collapse
|
22
|
Konvičková Z, Holišová V, Kolenčík M, Niide T, Kratošová G, Umetsu M, Seidlerová J. Phytosynthesis of colloidal Ag-AgCl nanoparticles mediated by Tilia sp. leachate, evaluation of their behaviour in liquid phase and catalytic properties. Colloid Polym Sci 2018. [DOI: 10.1007/s00396-018-4290-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
23
|
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.
Collapse
|
24
|
Salaheldin HI, Negm A, Osman GEH. Porcine skin gelatin-silver nanocomposites: synthesis, characterisation, cell cytotoxicity, and antibacterial properties. IET Nanobiotechnol 2017; 11:957-964. [PMID: 29155395 DOI: 10.1049/iet-nbt.2017.0015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Silver nanoparticles (AgNPs) were synthesised with hydrothermal autoclaving technique by using AgNO3 salt (silver precursor) at different concentrations (0.01, 0.1, 0.55, 1.1, 5.5, and 11 mM) and porcine skin (1% (w/v) ) gelatin polymeric matrix (reducing and stabiliser agent). The reaction was performed in an autoclave at 103 kPa and 121°C and the hydrothermal autoclaving exposure time and AgNO3 molar concentration were varied at a constant porcine skin gelatin concentration. The as-prepared AgNPs were characterised by UV-visible spectroscopy, transmission electron microscopy, and Fourier transform infrared spectroscopy. The antibacterial properties of AgNPs were tested against gram-positive and gram-negative bacteria. Furthermore, 3-(4,5-dimethylthiazol-2-yl) 2,5-diphenyltetrazolium bromide and 2,2-diphenyl-1-picrylhydrazyl assays were used to test whether the synthesised AgNPs can be potentially applied in cancer therapy or used as an antioxidant. This approach is a promising simple route for synthesising AgNPs with a smaller average particle 10 nm diameter. Furthermore, AgNPs exhibited a good cytotoxicity activity, reducing the viability of the liver cancer cell line HepG2 with a moderate IC50; they also showed a low-to-fair antioxidant activity. In addition, AgNPs had a remarkable preferential antibacterial activity against gram-positive bacteria than gram-negative bacteria. Therefore, these fabricated AgNPs can be used as an antibacterial agent in curative and preventive health care.
Collapse
Affiliation(s)
- Hosam I Salaheldin
- Department of Physics, Faculty of Applied Science, Umm Al-Qura University, Makkah 21955, PO Box 715, Kingdom of Saudi Arabia.
| | - Amr Negm
- Biochemistry Division, Department of Chemistry, Faculty of Science, Mansoura University, El-Gomhorya Street, 35516 Mansoura, Egypt
| | - Gamal E H Osman
- Agricultural Genetic Engineering Research Institute (AGERI), Giza 12619, Egypt
| |
Collapse
|
25
|
Rostami H, Khosravi F, Mohseni M, Rostami AA. Biosynthesis of Ag nanoparticles using isolated bacteria from contaminated sites and its application as an efficient catalyst for hydrazine electrooxidation. Int J Biol Macromol 2017; 107:343-348. [PMID: 28870750 DOI: 10.1016/j.ijbiomac.2017.08.179] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 08/28/2017] [Accepted: 08/31/2017] [Indexed: 10/18/2022]
Abstract
In the present study, a bacterium resistance to heavy metals was isolated from contaminated areas. An eco-friendly and simple method was found to biosynthesis of silver nanoparticles (AgNPs) by reducing of aqueous Ag+ using the heavy metals resistance MKH1 bacterium. The biosynthesized AgNPs were characterized by UV-vis spectroscopy, scanning electron microscopy (SEM) and X-ray diffraction (XRD) techniques. A peak at about 420nm is related to absorption band of AgNPs which confirms by UV-vis spectroscopy. The SEM images showed that the biosynthesized AgNPs have mainly spherical shape with average diameters of 30-60nm. The electro-catalytic properties of AgNPs with different Ag content were investigated by different electrochemical tests. Biosynthesized AgNPs using isolated MKH1 show high catalytic activity and stability towards the oxidation reaction of hydrazine.
Collapse
Affiliation(s)
- Hussein Rostami
- Faculty of Chemistry, University of Mazandaran, Babolsar, Iran.
| | - Fatemeh Khosravi
- Department of Molecular and Cell Biology, University of Mazandaran, Babolsar, Iran
| | - Mojtaba Mohseni
- Department of Molecular and Cell Biology, University of Mazandaran, Babolsar, Iran
| | | |
Collapse
|
26
|
Crosslinked PVA/PVP Supported Silver Nanoparticles: A Reusable and Efficient Heterogeneous Catalyst for the 4-Nitrophenol Degradation. J Inorg Organomet Polym Mater 2017. [DOI: 10.1007/s10904-017-0632-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
27
|
Eisa WH, Abdelnaby T, Mostafa S, Elzayat MY. In situ preparation of chitosan/gold nanocomposite: Structural and catalytic properties. ADVANCES IN POLYMER TECHNOLOGY 2017. [DOI: 10.1002/adv.21867] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Wael H. Eisa
- Spectroscopy Department; Physics Division; National Research Centre (NRC); Cairo Egypt
| | - Tarob Abdelnaby
- Physics Department; Faculty of Science; Fayoum University; Fayoum Egypt
| | - Shahenda Mostafa
- Physics Department; Faculty of Science; Fayoum University; Fayoum Egypt
| | | |
Collapse
|
28
|
Vinayagam R, Varadavenkatesan T, Selvaraj R. Evaluation of the Anticoagulant and Catalytic Activities of the Bridelia retusa Fruit Extract-Functionalized Silver Nanoparticles. J CLUST SCI 2017. [DOI: 10.1007/s10876-017-1270-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
29
|
Dauthal P, Mukhopadhyay M. Phyto-synthesis and structural characterization of catalytically active gold nanoparticles biosynthesized using Delonix regia leaf extract. 3 Biotech 2016; 6:118. [PMID: 28330190 PMCID: PMC4909019 DOI: 10.1007/s13205-016-0432-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Accepted: 05/21/2016] [Indexed: 11/04/2022] Open
Abstract
Biological methods of nanoparticles synthesis are ecologically sound and sustainable alternative to the conventional methods. On the basis of aforesaid premise, the present study deals with the optimization and fabrication of gold nanoparticles (Au-NPs) using easily available bio-resource, Delonix regia leaf extract. The use of practically nontoxic natural extracts and water allows the synthesis pathways presented to be considered as ‘‘green’’ and so permitting the synthesized Au-NPs to be used in sensitive areas, such as bioremediation. Various characterization techniques are adopted for the evaluation of size, stability, morphology, crystal nature, and purity of nanoparticles. Ultraviolet–visible spectroscopy analysis showed a surface Plasmon resonance peak for prepared Au-NPs at 542 nm, and its absorbance increased with increasing the interaction time. Transmission electron microscopy analysis showed that the particles were spherical and 4–24 nm in size. Energy dispersive X-ray spectroscopy analysis displayed a 2.2 keV peak corresponding to the pure phase gold nanocrystal. X-ray diffraction analysis proved the fabrication of crystalline Au-NPs with face-centered cubic geometry within 10 min. Furthermore, ζ potential (−15 mV) and Fourier transform infrared data suggested the role of polar polyphenolic compounds of leaf extract in fabrication and stabilization process. Biofabricated nanoparticles are demonstrated to have catalytic activity for the reduction of toxic nitro-organic pollutant o-nitroaniline. Therefore, the present study offers a straightforward, cost-efficient, eco-friendly, and sustainable alternative for the fabrication of catalytically active Au-NPs.
Collapse
|
30
|
Ramachandran K, Kalpana D, Sathishkumar Y, Lee YS, Ravichandran K, kumar GG. A facile green synthesis of silver nanoparticles using Piper betle biomass and its catalytic activity toward sensitive and selective nitrite detection. J IND ENG CHEM 2016. [DOI: 10.1016/j.jiec.2015.10.033] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
31
|
|
32
|
Solomon MM, Umoren SA. In-situ preparation, characterization and anticorrosion property of polypropylene glycol/silver nanoparticles composite for mild steel corrosion in acid solution. J Colloid Interface Sci 2016; 462:29-41. [DOI: 10.1016/j.jcis.2015.09.057] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Revised: 09/18/2015] [Accepted: 09/23/2015] [Indexed: 11/30/2022]
|
33
|
Solomon MM, Umoren SA. In-situ preparation, characterization and anticorrosion property of polypropylene glycol/silver nanoparticles composite for mild steel corrosion in acid solution. J Colloid Interface Sci 2016. [DOI: 10.1016/j.jcis.2015.09.057 pmid: 26433475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
34
|
Solomon M, Umoren S, Abai E. Poly(methacrylic acid)/silver nanoparticles composites: In-situ preparation, characterization and anticorrosion property for mild steel in H2SO4 solution. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2015.09.028] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|