Effect of pH on Size and Concentration of Silver Nanoparticles Synthesized using Ixora coccinea Linn. Leaf Extracts

Reyes, Darwin F.; Cabrera, Gil Fabien S.; Mata, Shemma Mica V.; Pedro, Jazmin Pariz D. San; Palioc, Jadd Christian C.; Tandingan, Gervin S.

doi:10.13005/ojc/360612

Cited by 5 publications

(4 citation statements)

References 17 publications

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“…Basic pH generally formed AgNPs with smaller and narrower size distribution. This result is in line with the previous study’s findings [ 12 ]. The compound containing the carboxyl group tends to have a better reduction potential at basic pH from the structure-activity properties.…”

Section: Discussionsupporting

confidence: 94%

“…Natural plant pH can vary in different areas of the plant and have an impact on plant extract antioxidant activity [ 8 , 9 , 10 ]. The experimental pH is of great interest as this has been shown to influence the size and shape of resultant metallic nanoparticles [ 11 , 12 ]. Morones et al (2005) demonstrated the size-dependent bactericidal properties produced by AgNPs [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

“…Studies have shown that via plant-mediated green synthesis, larger nanoparticles are formed at acid pH (2–4) compared to basic pH [ 21 ]. Whilst at basic pHs, metallic nanoparticles generated have shown to be smaller in size and produced a higher yield [ 12 ]. The pH alternation range used in this study was pH 5–9.…”

Section: Introductionmentioning

confidence: 99%

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pH Alteration in Plant-Mediated Green Synthesis and Its Resultant Impact on Antimicrobial Properties of Silver Nanoparticles (AgNPs)

et al. 2022

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Plant-mediated green synthesis is a cost-effective and eco-friendly process used to synthesize metallic nanoparticles. Experimental pH is of interest due to its ability to influence nanoparticle size and shape; however, little has been explored in comparison to the influence of this parameter on the therapeutic potential of resultant metallic nanoparticles. Our work investigated the influence of pH alternation on antimicrobial properties of plant-mediated green synthesized (using Spinacia oleracea leaf extract) silver nanoparticles. We further investigated if the antimicrobial activity was sustained at 8 weeks (after initial green synthesis). Antimicrobial properties were evaluated against Escherichia coli, Staphylococcus aureus, and Candida albicans. Our work confirmed that experimental pH in plant-mediated green synthesis of silver nanoparticles influenced their resultant antimicrobial properties. Silver nanoparticles generated at experimental pH 4,5, and nine showed activity against E. coli which was sustained at various levels over 8 weeks. No antimicrobial activity was observed against S. aureus, and weak antimicrobial activity against C. albicans. These interesting findings highlight the importance of experimental pH. Further understanding of the role experimental pH plays on resultant metallic nanoparticle properties as it relates to biological and therapeutic impact is required, which will have an impact on wider applications beyond antimicrobial activity.

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Section: Discussionsupporting

confidence: 94%

Section: Introductionmentioning

confidence: 99%

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pH Alteration in Plant-Mediated Green Synthesis and Its Resultant Impact on Antimicrobial Properties of Silver Nanoparticles (AgNPs)

et al. 2022

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“…For a greener strategy, the use of biological substances as the reducing agents instead of toxic reagents such as sodium borohydride has been demonstrated to be superior due to its low cost and eliminates toxic synthesis by-products 8 . Such biomolecules utilized in the synthesis of silver nanoparticles are carbohydrates 9,10 and plant extracts 7,11,12 .…”

Section: B E S I D E S T H E T H E R M a L M E T H O D Amentioning

confidence: 99%

Sonochemical Synthesis and Characterization of Silver Nanoparticles using Lactose as the Reducing Agent

Reyes

2023

Orient. J. Chem

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The present study focuses on the exploration of a synthetic procedure for the preparation of green silver nanoparticles. Using lactose as the reducing agent, the reaction mixture containing the silver precursor was exposed to ultrasonic irradiation at ambient temperature and conditions. To optimize the synthesis, the pH levels and concentration of lactose were varied. Using lactose at acidic level, no silver nanoparticles were produced since there was no color change observed after the sonication. On the other hand, silver nanoparticles were produced using alkaline lactose solutions as evidenced by the formation of yellow-colored products. Infrared spectrometry revealed the functional groups responsible for the reduction and capping of the nanoparticles. The sonochemical route provided a synthetic strategy for the production of quality nanoparticles with potential chemical and biological activities.

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Plant Extract-Mediated Synthesis of Ag-Doped ZnO: Eco-Friendly Nanomaterial for Environmental Restoration, Microbial Inhibition, Cell Toxicity, Antioxidant Potential, and Sensing

V. Jagadeeswar,

Dhinesh,

Roopan

et al. 2023

Colloid J

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Effect of pH on Size and Concentration of Silver Nanoparticles Synthesized using Ixora coccinea Linn. Leaf Extracts

Cited by 5 publications

References 17 publications

pH Alteration in Plant-Mediated Green Synthesis and Its Resultant Impact on Antimicrobial Properties of Silver Nanoparticles (AgNPs)

pH Alteration in Plant-Mediated Green Synthesis and Its Resultant Impact on Antimicrobial Properties of Silver Nanoparticles (AgNPs)

Sonochemical Synthesis and Characterization of Silver Nanoparticles using Lactose as the Reducing Agent

Plant Extract-Mediated Synthesis of Ag-Doped ZnO: Eco-Friendly Nanomaterial for Environmental Restoration, Microbial Inhibition, Cell Toxicity, Antioxidant Potential, and Sensing

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