Performance of Platinum Nanoparticles / Multiwalled Carbon Nanotubes / Bacterial Cellulose Composite as Anode Catalyst for Proton Exchange Membrane Fuel Cells

Aritonang, Henry F.; Kamu, Vanda S.; Ciptati, Ciptati; Onggo, Djulia; Radiman, Cynthia Linaya

doi:10.9767/bcrec.12.2.803.287-292

Cited by 10 publications

(2 citation statements)

References 14 publications

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“…Moreover, these materials have a wide range of applications: detectors, catalysts, surface coating agents, and antibacterial/antimicrobials, among many others. Some of the most studied metallic nanoparticles include silver (Ag) [2, 3], gold (Au) [4], platinum (Pt) [5–7], and palladium (Pd) [8].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Silver Nanoparticles Using Aqueous Extract of Medicinal Plants’ (Impatiens balsaminaandLantana camara) Fresh Leaves and Analysis of Antimicrobial Activity

Aritonang

Koleangan

Wuntu

2019

International Journal of Microbiology

184

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Plant-mediated synthesis of nanomaterials has been increasingly gaining popularity due to its eco-friendly nature and cost-effectiveness. In the present study, we synthesized silver (Ag) nanoparticles using aqueous extracts of fresh leaves of Impatiens balsamina and Lantana camara medicinal plants as bioreducing agents. This method allowed the synthesis of nanoparticles, which was confirmed by ultraviolet-visible (UV-Vis) spectrophotometry and transmission electron microscopy (TEM). UV-Vis spectra and visual observation showed that the color of the fresh leaf extracts of L. camara and I. balsamina turned into grayish brown and brownish yellow, respectively, after treatment with Ag precursors. In addition, TEM analysis confirmed that AgNO3 solutions for all concentrations produced Ag nanoparticles and their average size was less than 24 nm. Moreover, aqueous leaf extracts of I. balsamina and L. camara were separately tested for their antimicrobial activity against Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli bacteria. The results showed that the bacterial growth was inhibited by the extracts containing Ag nanoparticles. Statistical calculation performed using the Tukey test showed that zones of inhibition for the two bacteria produced by the aqueous leaf extracts of L. camara containing 3 mM and 5 mM Ag precursors were not significantly different from that by ciprofloxacin as positive control. On the contrary, there was significant difference between the zone of inhibition for E. coli by ciprofloxacin and that by the extracts of I. balsamina leaves containing 3 mM and 5 mM Ag precursors. A similar result was observed on the zone of inhibition for S. aureus by the extracts of I. balsamina leaves containing 3 mM Ag precursor. It was shown that the aqueous extracts of fresh L. camara leaves containing Ag nanoparticles were comparable to ciprofloxacin in inhibiting bacterial growth.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Silver Nanoparticles Using Aqueous Extract of Medicinal Plants’ (Impatiens balsaminaandLantana camara) Fresh Leaves and Analysis of Antimicrobial Activity

Aritonang

Koleangan

Wuntu

2019

International Journal of Microbiology

184

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“…After nding the dry weight of the ne crystals they are treated with aqua and then stirred continuously into a concentrated solution. After adding in a small beaker they are placed in a heating mantle and parameters optimization is done [10]. Then the precursor silver nitrate at a concentration of 1 Mm is mixed gently.…”

Section: As-agnps Synthesismentioning

confidence: 99%

Phyto Mediated Silver Nanoparticle Synthesis Coated Fabrics Towards Antibacterial Potential

Kabeerdass

Murugesan

Srinivasan

et al. 2021

Preprint

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Sore repairing since occurrence up to dry skin formation (scar) is a precious process gifted by nature. Immunology takes a predominant part in healing. A sore which is sustained just now, within minutes/hours is usually ignored till its uninterrupted scar formation. When is delayed that persists for many days, many weeks, more months, even for years is keenly noticed and is seeking secondary healing which is donated by medical men. Uninterrupted natural healing is usually processed by the immune system of the host when healing is delayed then comes interruption of the medical experts with the inclusive of medicines such as synthetic chemicals, phytotherapy, micro nano particles mingled medicines, botanical flora yield Phyto metal micro therapies which going for updated management like 3D bioprinting is in practice. An array of twenty exudates of nasal, pus, urine, stool, and blood are collected from the diverse age group of sex in various wards of SOTS (such as ICU, CCU, maternity, and casualty) from the Hospitals of Madurai. After isolating from other commensals its phenotypic character is studied through gram staining and biochemical tests. To get rid of their pathogenicity a cheap, cost-effective, eco-friendly potential medicinal ingredients possessed Amaranthaceae family yielded Alternanthera sessilis mediated fabrics coated silver nanoparticles were synthesized. In the case of MIC of AS-AgNPs against isolates zone of inhibition of the E. coli is 16mm > S. aureus is 15mm at 60µg. But in the case of MIC of fabrics against isolates the E. coli and K. oxytoca show susceptibility of 19 mm in mixed cotton. In a confirmation study of AS-AgNPs in FTIR, a sharp band is observed between 1500-500cm-1, in SEM with EDAX a graph was observed between 2.6–3.9 and black white crystals measured at 200nm in HR-TEM. Nanotechnology conjoined with herbal therapeutics provides a promising solution for wound management strategies.

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Polysaccharides-Based Hybrids with Carbon Nanotubes

Vilela

Pinto

et al. 2018

SpringerBriefs in Molecular Science

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Performance of Platinum Nanoparticles / Multiwalled Carbon Nanotubes / Bacterial Cellulose Composite as Anode Catalyst for Proton Exchange Membrane Fuel Cells

Cited by 10 publications

References 14 publications

Synthesis of Silver Nanoparticles Using Aqueous Extract of Medicinal Plants’ (Impatiens balsaminaandLantana camara) Fresh Leaves and Analysis of Antimicrobial Activity

Synthesis of Silver Nanoparticles Using Aqueous Extract of Medicinal Plants’ (Impatiens balsaminaandLantana camara) Fresh Leaves and Analysis of Antimicrobial Activity

Phyto Mediated Silver Nanoparticle Synthesis Coated Fabrics Towards Antibacterial Potential

Polysaccharides-Based Hybrids with Carbon Nanotubes

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