Antimicrobial effect of Sargassum plagiophyllum mediated gold nanoparticles on Escherichia coli and Salmonella typhi

Dhas, T. Stalin; Sowmiya, P.; Kumar, Virendra; Ravi, M.; Suthindhiran, K.; Borgio, J. Francis; Narendrakumar, G.; Kumar, Vivek; Karthick, V.; Kumar, Chanchal

doi:10.1016/j.bcab.2020.101627

Cited by 24 publications

(4 citation statements)

References 24 publications

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“…The peaks of the XRD spectrum were developed due to the presence of various bioactive compounds involved in the HM‐AuNPs synthesis. Some of the seaweed species also showed similar results such as Caulerpa racemosa , 40 Vitis vinifera , 41 and Sargassum plagiophyllum 22 . The chemical state of HM‐AuNPs green synthesized from H. macroloba was observed by XPS.…”

Section: Resultsmentioning

confidence: 69%

“…Some of the seaweed species also showed similar results such as Caulerpa racemosa, 40 Vitis vinifera, 41 and Sargassum plagiophyllum. 22 The chemical state of HM-AuNPs green synthesized from H. macroloba was observed by XPS. 44 The change in the absorption spectra indicates that HM-AuNPs have the capacity to catalytically degrade MB, resulting in a solution that is devoid of color.…”

Section: X-ray Diffraction and X-ray Photoelectron Spectroscopy Analysismentioning

confidence: 99%

“…It likely promotes intracellular ROS formation in the cancer cells, hence triggering the oxidative damage leading to the release of proapoptotic enzymes 16 . AuNPs were synthesized through the use of various seaweed extracts, such as Sargassum muticum , 17 Gracilaria verrucosa , 18 Spatoglossum asperum , 19 Hypnea valentiae , 20 Chondrus crispus , 21 Sargassum plagiophyllum , 22 and Halymenia dilatata 23 . On the other hand, the utilization of natural extracts for AuNPs synthesis offers advantages in terms of facile, cost‐effectiveness, and scalability for large‐scale production.…”

Section: Introductionmentioning

confidence: 99%

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Green synthesis of gold nanoparticles using macroalgae Halimeda macroloba extract and their photocatalytic degradation of methylene blue and methyl orange

Lavanya,

Anandaraj,

Selvam

et al. 2024

Polymers for Advanced Techs

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Green synthesis of gold nanoparticles (AuNPs) is gaining attention of researchers because of their varieties of biomedical and environmental applications. This study reported the novel eco‐friendly synthesis of AuNPs using green macroalgae Halimeda macroloba (HM) extract and evaluate their photocatalytic potential. The green synthesized H. macroloba mediated gold nanoparticles (HM‐AuNPs) was characterized using UV–visible spectrophotometry, Fourier‐transform infrared (FT‐IR) spectroscopy, transmission electron microscope (TEM), scanning electron microscope‐energy dispersive spectroscopy, x‐ray photoelectron spectroscopy (XPS), and particle size distribution (PSD) anlaysis. The UV–visible spectrum shows a sharp intense plasmonic resonance peak at 543 nm. The bioactive compounds present in HM were primarily responsible for the biological reduction of gold ions validated by FT‐IR analysis. XRD analysis proved the crystalline face centered cubic structure of the HM‐AuNPs. The average particle size of 18.72 nm and morphological evidences were obtained from the images from TEM. The metallic form of biosynthesised HM‐AuNPs was confirmed by XPS results with a distinctive binding energy. The photocatalytic degradation ability of the green synthesized HM‐AuNPs was investigated against the methylene blue (MB) and methylene orange (MO) dyes under sunlight irradiation. The HM‐AuNPs exhibited 97.23% and 89.91% photocatalytic activity against MB and MO after 90 min of exposure to sunlight, respectively. The overall results of this research indicate that H. macroloba mediated HM‐AuNPs can be used as an effective option for the degradation of industrial dyes.

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Section: Resultsmentioning

confidence: 69%

Section: X-ray Diffraction and X-ray Photoelectron Spectroscopy Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Green synthesis of gold nanoparticles using macroalgae Halimeda macroloba extract and their photocatalytic degradation of methylene blue and methyl orange

Lavanya,

Anandaraj,

Selvam

et al. 2024

Polymers for Advanced Techs

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“…KAEE & KAAE showed greater activity on Gram positive organisms than Gram negative organisms, which Could be due to the strength variability of bacterial cell wall. Many studies supported the efficiency of different seaweeds on food borne pathogens especially Salmonella species [31][32][33][34][35][36]. Galan et al, [37] also reported the efficiency of rhodhophyta members not Kappaphycus alvarezii extracts on fish pathogens.…”

Section: Resultsmentioning

confidence: 93%

Inhibitory Potentials of Kappaphycus Alvarezii on Bacteria Isolated from Clinical Samples

Deepa VH,

Sivakami R,

Suyambu

2023

J. Adv. Zool.

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Kappaphycus alvarezii is one of the high stress tolerant sea weed with good biopotentials. This was collected, processed, extracted and subjected to antibacterial activity against MDR UTI isolates. All the isolates were identified using standard biochemicals and other textual procedures along with 16S rRNA sequencing. Antibacterial activity was assessed by disc diffusion method and followed standard textual procedures to assess MIC, MBC, Percentage inhibition, IC50 and LC50. Six different test organisms were used for studying antibacterial activity. Antibacterial activity of all extracts on different extracts were varied from 7.2±0.6mm zone of inhibition. Concentration required to inhibits the growth of the UTI causing test organisms found to varied from 383.3±57.7µg/ml to 1033.0±76.3 µg/ml. extracts inhibited the growth of bacteria especially Staphylococcus aureus var haemolyticus was up to 98.2%. antibacterial substances like flavonoids and phenolic compounds could be responsible for this kind of activity.

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Ganoderma lucidum: King of Mushroom

Owaid

2021

Non-Timber Forest Products

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Antimicrobial effect of Sargassum plagiophyllum mediated gold nanoparticles on Escherichia coli and Salmonella typhi

Cited by 24 publications

References 24 publications

Green synthesis of gold nanoparticles using macroalgae Halimeda macroloba extract and their photocatalytic degradation of methylene blue and methyl orange

Green synthesis of gold nanoparticles using macroalgae Halimeda macroloba extract and their photocatalytic degradation of methylene blue and methyl orange

Inhibitory Potentials of Kappaphycus Alvarezii on Bacteria Isolated from Clinical Samples

Ganoderma lucidum: King of Mushroom

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