Plant extract mediated synthesis of nanoparticles

2018 ◽  
pp. 411-446 ◽  
Author(s):  
Siim Küünal ◽  
Protima Rauwel ◽  
Erwan Rauwel
Keyword(s):  
Plant Extract ◽  
Synthesis Of Nanoparticles

scholarly journals Optimization of process parameters for the green synthesis of silver nanoparticles using Plackett-Burman and 3-level Box–Behnken Design

2020 ◽  
Author(s):  
Halima R ◽  
Archna Narula ◽  
R.R Sivakiran
Keyword(s):  
Silver Nanoparticles ◽  
Green Synthesis ◽  
Silver Nitrate ◽  
Plant Extract ◽  
Piper Betle ◽  
Experimental Conditions ◽  
Box Behnken Design ◽  
Synthesis Of Nanoparticles ◽  
Optimization Parameters ◽  
The Impact

Abstract Background: The present work describes the synthesis of silver nanoparticles (AgNps) from leaf extracts of Piper betle and Jatropha curcas using a green approach. Green synthesis of nanoparticle is superior over other methods of synthesis as it is ecofriendly and cost effective. The phytochemical components in the leaf extract play a vital role in reducing the AgNO3 and hence synthesizing the silver nanoparticles. During this reduction activity, the several factors which affect the synthesis of nanoparticles were investigated and optimized according to the yield of nanoparticles. The experimental conditions investigated were pH, temperature, pressure, time of reaction, microwave radiation, UV radiation and concentration of plant extract, silver nitrate & sunlight. Satisfactory yields of silver nanoparticles synthesis from plant extract were obtained by using optimum conditions when compared to conventional synthesis of nanoparticles. The optimization parameter was later Result: A mathematical model was formulated to correlate the interactive influence of the parameters and the significant reduction. Plackett-Burman design (PBD) indicated that concentration of plant extract, concentration of silver nitrate and sunlight were the major parameters affecting the synthesis of silver nanoparticle. The mutual interactions of these variables are mapped in the design by 3 Box-Behnken design (BBD). The significant factors and their interactions in the green synthesis were examined by analysis of Variance (ANOVA). The result indicated that the BBD was a good predictive model for the experimental results. Though the plant extracts are different, the characterization of the synthesized nanoparticle after optimization of parameters showed uniform size and shape i.e. spherical shape and size of 41 nm. Conclusion: The silver nanoparticles were synthesized under different optimization parameters were uniformly shaped (spherical) and sized (41 nm) particles. The mathematical models Plackett-Burman and Box-Behnken helped in analyzing the impact of the optimization parameters.

Green Synthesis of Silver Nanoparticles from the Leaf Extract of Volkameriainermis

2017 ◽  
Vol 9 (08) ◽  
Author(s):  
Lavanya Krishnadhas ◽  
Santhi R. ◽  
Annapurani S.
Keyword(s):  
Silver Nanoparticles ◽  
Green Synthesis ◽  
Plant Extract ◽  
Raw Materials ◽  
Synergetic Effect ◽  
Cost Effective ◽  
Synthesis Methods ◽  
Bioactive Constituents ◽  
Synthesis Of Nanoparticles ◽  
By Products

Nanoparticles are gaining interest in biomedical applications due to its importance such as anti-bacterial, anti-fungal and anti-cancer agents. Conventional methods for the synthesis of metal nanoparticles involves toxic reagents which produce harmful by-products and are hazardous to the environment. To overcome these limitations, green synthesis of nanoparticles was established. Eco-friendly methods using plant extracts are gaining popularity due to the abundance of raw materials and the production of non-toxic by-products threatening to the environment. Moreover, the nanoparticles synthesized from the plant extract are cost-effective. In addition, nanoparticles produced by green synthesis methods produces synergetic effect where both the nanoparticles as well as the natural bioactive constituents of the plant influence the biocidal properties. Different methods namely heating in water bath, microwave oven and exposure to bright sunlight were adopted for the synthesis of silver nanoparticles. Plant extract based synthesis of silver nanoparticles was eco-friendly and shows an alternative promise in bio-medical applications and it undertakes the negative effects of synthetic drugs.

scholarly journals Green synthesis of copper nanoparticles using extract of Dicliptera Roxburghiana, their characterization and photocatalytic activity against methylene blue degradation

2020 ◽  
Vol 9 (1) ◽  
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Green Synthesis ◽  
Copper Nanoparticles ◽  
Plant Extract ◽  
Fixed Ratio ◽  
Colour Change ◽  
Synthesis Of Nanoparticles ◽  
Ft Ir ◽  
Uv Visible

In the modern scientific era, nanotechnology isone of the burning field for researchers and scientists because of their applications in a number of areas. The synthesis of nanoparticles (particles having size 1-100 nm) is also the centre of attraction towards researchers due to its unique chemical and physical properties and wide applications. Nanoparticles can be synthesized by physical, chemical and biological processes also known as green synthesis. Among all of the methods of nanoparticles synthesis, green synthesis is non-toxic, economic and eco-friendly and also applicable to in numerous fields such as medicinal chemistry, catalysis etc. In the present study, we investigate the potential of the extract of plant dicliptera roxburghiana towards the synthesis of copper nanoparticles, for which a fixed ratio of plant extract and CuSO4 solution was used. The synthesis of Cu-NPs was initially confirmed by colour change of CuSO4 from blue to brownish green. The synthesized copper nanoparticles were studied and characterized by XRD, FT-IR and UV-Visible spectroscopy and later on subjected towards the photocatalytic degradation of organic dye methylene blue. Surface Plasmon Resonance of Cu-NPs was found to be at 578 nm using UV-Visible analysis and characteristic peak at 517-519 nm of copper nanoparticles were given by FT-IR spectrometer while XRD analysis showed the spherical shape of Cu-NPs having size of 58 nm. The photocatalytic activity of Cu-NPs was also studied in a comparison manner between the Cu-NPs in dried form and Cu-NPs in plant extract solution against methylene blue under sunlight.

scholarly journals Synthesis of Silver Nanoparticles by Phyllanthus emblica Plant Extract and Their Antibacterial Activity

2020 ◽  
Vol 17 (2) ◽  
pp. 136-145
Author(s):  
Rajesh Kumar Meena ◽  
Risikesh Meena ◽  
Dinesh Kumar Arya ◽  
Sapana Jadoun ◽  
Renu Hada ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Antibacterial Activity ◽  
Plant Extract ◽  
Low Cost ◽  
Green Technology ◽  
Phyllanthus Emblica ◽  
Visible Spectroscopy ◽  
Synthesis Of Nanoparticles ◽  
Resonance Band ◽  
Uv Visible

The silver nanoparticle was successfully synthesized by using the help of Phyllanthus emblica plant extract as a reducing agent and aqueous silver nitrate as the precursor. Moreover, physical and chemical methods are widely used for the synthesis of nanoparticles, but these methods have expensive and not ecofriendly. This study highlights the green, rapid, facile, cost-effective, and ecofriendly synthesis and synthesized nanoparticles also investigate their antibacterial activity. Synthesized silver nanoparticles are analyzed by different techniques of modes like XRD, UV-Visible spectroscopy, TEM, FTIR, and photoluminescence (PL). The prepared AgNPs show characteristic absorption peak in UV-Visible spectroscopy due to SPR (surface plasmonic resonance) band between 400 to 450 nm wavelength, which was confirmed by TEM (transmission electron microscopy) image. X-ray diffraction (XRD) results showed the crystalline nature of AgNPs as well as the size of nanoparticles calculated with the help of TEM (20-25 nm) and XRD (25 nm). ATR spectroscopy identified the functional groups that are involved in the reduction of silver ion to AgNPs and the PL spectrum indicates higher emission in the green region and low emission peak in the UV region. Antibacterial activity of AgNPs analyzed against with the help of E.Coli bacteria and the result shows that a higher concentration of AgNPs is increasing as well as a zone of inhibition increased. This method is environmentally friendly, of low cost, and less expensive method for the fabrication of AgNPs in abundance which can be further helpful for biosensor devices as well as for other applications such as pollutant degradation, pharmaceutical, and hydrogen production, etc therefore can promote the application of green technology for the production of AgNPs.

scholarly journals Green Synthesis of Silver Nanoparticles from several NTFP Plants

2016 ◽  
Vol 8 (1) ◽  
pp. 106-111
Author(s):  
Somnath BHOWMIK ◽  
Badal Kumar DATTA ◽  
Ajay Krishna SAHA ◽  
Pradyut CHAKMA ◽  
Narayan Chandra MANDAL
Keyword(s):  
Silver Nanoparticles ◽  
Plant Extract ◽  
Silver Ions ◽  
Biological Synthesis ◽  
Synthesis Of Nanoparticles ◽  
Force Microscopy ◽  
Atomic Force ◽  
One Step ◽  
Aqueous Leaf Extract ◽  
Uv Visible

The biological synthesis of nanoparticles using plant extracts plays an important role in the field of nanotechnology. In this study, rapid, simple approach was applied for synthesis of silver nanoparticles using , Clerodendrum infortunatum, Mucuna interrupta, Phlogancanthus thyrsiflorus and Sansevieria trifasciata aqueous leaf extract. The plant extract acts both as reducing agent as well as capping agent. To identify the compounds responsible for reduction of silver ions, the functional groups present in plant extract were investigated by FTIR. Various techniques used to characterize synthesized nanoparticles are Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM) and UV–Visible spectrophotometer. Results confirmed that this protocol was simple, rapid, one step, eco-friendly, non-toxic and might be an alternative conventional physical/chemical methods. Conversion of silver nanoparticles takes place at room temperature without the involvement of any hazardous chemicals.

Momordica charantia fruit mediated green synthesis of silver nanoparticles

2015 ◽  
Vol 4 (3) ◽  
Author(s):  
Mst Kamrun Nahar ◽  
Zarina Zakaria ◽  
Uda Hashim ◽  
Md Fazlul Bari
Keyword(s):  
Silver Nanoparticles ◽  
Green Chemistry ◽  
Green Synthesis ◽  
Silver Nitrate ◽  
Plant Extract ◽  
Momordica Charantia ◽  
Biological Synthesis ◽  
Synthesis Of Nanoparticles ◽  
Fruit Extracts ◽  
First Time

AbstractThe synthesis of nanoparticles (NP) is in the spotlight of modern nanotechnology. In recent years, the development of competent green chemistry methods for the synthesis of metal NPs has become the main focus of research. The biological synthesis of NPs using plant extract is currently under exploitation. For the first time, in this paper, we report the green synthesis of silver nanoparticles (AgNPs) by reduction of silver nitrate, using fruit extracts of

scholarly journals PHYTOSYNTHESIS OF SILVERNANO PARTICLES AND ITS APPLICATIONS A CRITICAL STUDY

2021 ◽  
Vol 5 (9) ◽  
Author(s):  
Minakshi Gajanan Pawar ◽  
Ramjan M. Mulani
Keyword(s):  
Silver Nanoparticles ◽  
Plant Extract ◽  
Physiological Condition ◽  
Review Article ◽  
Critical Study ◽  
Physical Factors ◽  
Synthesis Of Nanoparticles ◽  
Stabilizing Agents ◽  
Biological Sources ◽  
Major Factors

Plants are enormous, easily available natural sources of biomolecules for the synthesis of nanoparticles. Until now about 2000 plants are used for the green synthesis of Nanoparticles. The secondary metabolites present in the plant are a source of capping and stabilizing agents more than 100 different biological sources for synthesizing Silver Nanoparticles are reported till date. It is found out by various reports that the reaction condition and the physiological condition of plant extract are the major factors for the synthesis of Silver Nanoparticles. The other physical factors which affect the size, shape, of Silver Nanoparticles include temperature, stirring the reaction mixture, the concentration of plant extract, and ph of the plant extract. In this review article various aspects of Nanobiotechnology, the reaction of Nanoparticles synthesis, applications of Silver Nanoparticles are summarized and it is critically reviewed.

scholarly journals Green synthesized of novel iron nanoparticles as promising antimicrobial agent: A review

2021 ◽  
Vol 015 (02) ◽  
pp. 117-127
Author(s):  
Chetna M Sangode ◽  
Samiksha A Mahant ◽  
Pranjal C Tidke ◽  
Milind J Umekar ◽  
Radheshyam T Lohiya
Keyword(s):  
Plant Extract ◽  
Cell Separation ◽  
Tissue Repair ◽  
Iron Nanoparticles ◽  
Biomedical Application ◽  
Synthesis Of Nanoparticles ◽  
Iron Copper ◽  
Metal Atoms ◽  
Methods Of Synthesis ◽  
Copper Zinc

Green synthesis of nanoparticles utilizing plant extract has shown enormous advantages over the methods of synthesis. Green nanoparticles are generally synthesized using metal atoms like silver, iron, copper, zinc, and plant extract containing reducible phytoconstituents like alkaloids, flavonoids, tannins, etc. Several Iron nanoparticles are reported using plant extracts. Iron nanoparticles have a greater advantage of small size, affordable cost stability, or having some biomedical application. Such as tissue repair, hypothermia, cell separation, and most important is the integral component of our body system. In the present review, the account of methodologies for the synthesis of iron nanoparticles and the various plant extract having antimicrobial activity has been discussed.

scholarly journals Synthesis and characterization of ZnO nanoparticles using aqueous extract of Becium grandiflorum for antimicrobial activity and adsorption of methylene blue

2021 ◽  
Vol 11 (2) ◽  
Author(s):  
Mebrahtu Hagos Kahsay
Keyword(s):  
Antimicrobial Activity ◽  
Plant Extract ◽  
Klebsiella Pneumonia ◽  
Zno Nps ◽  
Synthesis Of Nanoparticles ◽  
Synthesis Strategy ◽  
Vis Spectroscopy ◽  
Methods Of Synthesis ◽  
Aqueous Leaf Extract ◽  
Xrd Patterns

AbstractNanotechnology is a recent field of modern research dealing with synthesis, strategy and manipulation of particle’s structure in size range of 1–100 nm. This study introduces one of the methods of synthesis of nanoparticles, i.e., green synthesis of ZnO NPs using aqueous leaf extract of Becium grandiflorum (AM: ‘Yedegamentisie’). The biomolecules of the plant extract (such as phenols, flavonoids, saponins, glycosides, steroids, tannins and alkaloids) were used as capping and reducing agent during synthesis of ZnO NPs. Response surface methodology coupled with Box-Behnken design (RSM-BBD) was used to optimize the synthesis of ZnO NPs and adsorption studies of the as-synthesized ZnO NPs. Then, ZnO NPs was characterized using different spectroscopic and microscopic instruments such as UV–Vis spectroscopy, FTIR, XRD and SEM–EDS to consider its purity, shape and crystallinity. UV–Vis analysis showed peaks in the range 305–312 nm due to synthesis of ZnO NPs. FTIR analysis showed the availability of different phytochemicals in the plant extract and synthesis of ZnO NPs at 490 cm−1. Powder XRD patterns confirmed formation of phase pure wurtzite structures of ZnO NPs. The synthesized ZnO NPs were used to remove MB dye from aqueous solution by acting as a photocatalyst and adsorbent as well as, it also showed antimicrobial activity against two gram positive (Staphylococcus epidermidis, Staphylococcus aureus) and three gram negative (Escherichia coli, Klebsiella pneumonia, Pseudomonas aeruginosa) bacteria.

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