Green-synthesized Silver Nanoparticles as Sensor Probes for the Naked-eye Detection of Hydrogen Peroxide

Reyes, Darwin F.

doi:10.13005/ojc/360407

Cited by 5 publications

(1 citation statement)

References 24 publications

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“…In this platform, the image is divided into red, green, and blue channels, and a whole number is assigned for each of the three colors in a given tone of the image [13]. Due to its advantages, DIC has been applied in the colorimetric analysis of various analytes in different sensing platforms such as hydrogen peroxide in aqueous solutions [16], iron in dietary supplements [17], aspirin and salicylic acid [18], and peroxide value in edible oils [19]. For the visual indicator, leaf extracts of Cordyline fruticosa were used as it is reported to contain pigments [20] that can be used for the digital image analysis of water alkalinity.…”

Section: Introductionmentioning

confidence: 99%

RGB-based colorimetric method for the analysis of water alkalinity using Cordyline fruticosa extracts as visual indicator

Parungao,

Reyes

2024

IJPHS

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Leaf extracts of Cordyline fruticosa was used as a natural visual indicator for a digital image-based analytical procedure for the measurement of water alkalinity. A smartphone and ImageJ were used to capture and process the images, respectively. This work sought to develop and evaluate a greener strategy of using of Cordyline fruticosa leaf extract as natural indicator, in a digital image-based colorometric set-up using smartphone. Under optimized conditions, the linear working range was from 40 to 160 ppm of CaCO3, with a calibration sensitivity of 5 x 10-3 ppm and a coefficient of correlation (r2) = 0.998. The limit of detection and quantification were 39 ppm and 117 ppm, respectively. A 10,000 ppm CaCO3 solution was tested using the proposed method and the results statistically agree with the results obtained from titrimetric methods. The study presented a simple analytical procedure that can be develop and apply for the assessment of pollution that could pose serious human and environmental health hazards.

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Section: Introductionmentioning

confidence: 99%

RGB-based colorimetric method for the analysis of water alkalinity using Cordyline fruticosa extracts as visual indicator

Parungao,

Reyes

2024

IJPHS

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

et al. 2020

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The synthesis of silver nanoparticles via plant-mediated approach is an emerging area of research interest worldwide. The procedure is cost-effective and does not require the use of toxic chemicals and complicated reaction conditions. In the present investigation, silver nanoparticles were prepared using the leaf extracts of Ixora coccinea Linn., a common ornamental shrub in the Philippines, as the reducing agent. The effect of pH on the synthesis was investigated, and results showed that the quality of the synthesized silver nanoparticles changes in varying pH of the reducing agent.

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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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Green-synthesized Silver Nanoparticles as Sensor Probes for the Naked-eye Detection of Hydrogen Peroxide

Cited by 5 publications

References 24 publications

RGB-based colorimetric method for the analysis of water alkalinity using Cordyline fruticosa extracts as visual indicator

RGB-based colorimetric method for the analysis of water alkalinity using Cordyline fruticosa extracts as visual indicator

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

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

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