Plant-Based Synthesis of Silver Nanoparticles and Their Characterization

Patel, Poonam; Agarwal, Priti; Kanawaria, Sajjan Kumar; Kachhwaha, Sumita; Kothari, S. L.

doi:10.1007/978-3-319-14502-0_13

Cited by 32 publications

(18 citation statements)

References 77 publications

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“…These chemicals are toxic in nature and are nonbiodegradable, which limit the production scale. Along with this, some of the toxic chemicals may also contaminate the surface of nanoparticles and make them unsuitable for certain biomedical applications [18]. In this context to eliminate all these drawbacks of physical and chemical methods, scientists and researchers are focused on alternative process of metal nanoparticle synthesis.…”

Section: Chemical Methods Of Nanoparticle Synthesismentioning

confidence: 99%

Phytosynthesis of silver nanoparticles by Cissus quadrangularis: influence of physicochemical factors

et al. 2013

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Green chemistry approaches for the synthesis of metallic nanoparticles have become a new and promising field of research in recent years. Synthesis of metal nanoparticles [like gold (Au), silver (Ag), lead (Pb), platinum (Pt), copper (Cu), iron (Fe), cadmium (Cd), and other metal oxides such as titanium oxide (TiO), zinc oxide (ZnO), etc.] by various chemical and physical approaches as well as the biological approaches mediated by number of microorganisms have been actively found. Plant-mediated synthesis approaches are found to be more reliable and economic route to synthesize these metal nanoparticles. Owing to the biodiversity of plant biomasses, the actual mechanism by which the plant constituents have contributed to the synthetic process is yet to be fully known. Although the feasibility of controlling, the size and shape of nanoparticles by variation in reaction conditions have been demonstrated in many studies. Conventionally, nanoparticles are synthesized by chemicals and physicochemical methods using several chemicals which later on become accountable for various risk due to their general toxicity, so that solving the objective biological approaches is coming up to fill these gaps. The plant-mediated synthesis process undergoes highly controlled approaches for making them suitable for metal nanoparticle synthesis. In addition, biological synthesis of metallic nanoparticles is inexpensive, one-step, and eco-friendly method. In addition, the plant-mediated nanoparticles are used as potential pharmaceutical agents for various diseases such as malaria, HIV, cancer, hepatitis, and other diseases. Including this some other relevant information regarding nanopharmaceutical products, companies that are involve in the manufacturing and commercialization process and their clinical trial status are also discussed. This review article gives an overview of the plant-mediated synthesis of metal nanoparticles, possible compounds, and mechanisms that might be responsible for the reduction process as well as the potential pharmacological applications, currently available nanopharmaceutical products and their marketing status.

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Section: Chemical Methods Of Nanoparticle Synthesismentioning

confidence: 99%

Phytosynthesis of silver nanoparticles by Cissus quadrangularis: influence of physicochemical factors

et al. 2013

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“…The peaks found in 1,645 and 1,454 cm -1 refer to the water vibration present in the films and the C-H2 flexion, respectively [45,46]. The band at 1,336 cm -1 represents the C-H vibrations, whereas in 1,240 cm -1 the C-O stretch of the C-O-C bond is obtained [47].…”

Section: Structural and Morphology Propertiesmentioning

confidence: 99%

Cassava starch films reinforced with lignocellulose nanofibers from cassava bagasse

Travalini

Lamsal

Magalhães

et al. 2019

International Journal of Biological Macromolecules

100

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Cassava bagasse, a high-fiber coproduct of cassava starch processing, was used to produce lignocellulose nanofibers (LCNF) to apply as reinforcement in cassava starch films. LCNF-reinforced cast starch films were evaluated for changes in structural, thermal and mechanical properties and compared with control films reinforced with commercial grade nanoclay (Nclay). Five different types of cassava starch cast-films were produced: no-reinforcement control, two LCNF-reinforced, and two Nclay-reinforced, each at 0.65 and 1.3% w w−1. The LCNF morphology showed the characteristic microscopic structure of lignocellulose nanofibers, with an aspect ratio > 85 and average diameter of 4.5 nm. All reinforced films were transparent and had a good distribution of the nanoparticles within. The opacity values reduced for the films with all nanoreinforcements, compared to control. The permeability to water vapor reduced with reinforcements, with lower values for the films tested with LCNF 0.65 and Nclay 1.3. Thermal stability improved with 1.3% of LCNF and both concentrations of Nclay. Tensile stress for films increased and elongation at break value decreased with both types of nanoreinforcements.

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“…The mixture was kept at room temperature for about 24 hours. The formation of a darckish-brown colour confirmed the presence of AgNPs; because AgNPs has been established to exhibit change in colour in aqueous solution due to excitation of surface Plasmon resonance in the AgNPs (Patel et al, 2015). …”

Section: Methodsmentioning

confidence: 83%

Biosynthesis, characterization and antimicrobial study of silver nanoparticles (agNPs)

Hamisu¹,

Abdullahi²,

Abubakar³

et al. 2017

Bayero J. Pure App. Sci.

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In this paper, biological synthesis of silver nanoparticles (AgNPs) using Syzygium guineenses stem extract with 1mM, 2mM and 3mM AgNO3 concentrations has been presented. The plant extract was prepared with distilled water. The characterization and morphological composition of the synthesized AgNPs were determined by UV-visible spectroscopy and SEM respectively, while FTIR analysis was performed to identify the presence of the possible functional groups in the synthesized nano particles. It was observed from the UV and SEM analyses that the particles formed have diameters in the range of 23.5nm -89.3nm, which is the range of nanoparticle size. Antibacterial test was carried out on the sample with six pathogenic microbes (Methicillin Resistant Staphylococus aureas, Vancomycin Resistant Entrococci, Staphylococcus aureas, Bacillus sublitis, Escherichia coli, and Pseudomonas aeruginosa) to ascertain the antimicrobial activity of the synthesized AgNPs. Both the characterization and antimicrobial activity test were very successful and could lead to significant economic viability, as well as being environmentally friendly for treatment of some infectious diseases.

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Plant-Based Synthesis of Silver Nanoparticles and Their Characterization

Cited by 32 publications

References 77 publications

Phytosynthesis of silver nanoparticles by Cissus quadrangularis: influence of physicochemical factors

Phytosynthesis of silver nanoparticles by Cissus quadrangularis: influence of physicochemical factors

Cassava starch films reinforced with lignocellulose nanofibers from cassava bagasse

Biosynthesis, characterization and antimicrobial study of silver nanoparticles (agNPs)

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