Rapid biosynthesis of silver nanoparticles using the marine red alga Laurencia catarinensis and their characterization

Abdel-Raouf, Neveen; Alharbi, Reem Mohammed; Al‐Enazi, Nouf M.; Alkhulaifi, Manal M.; Ibraheem, Ibraheem Borie Mohammad

doi:10.1016/j.bjbas.2017.10.003

Cited by 30 publications

(9 citation statements)

References 13 publications

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“…These outcome data are comparable to the previously recorded data using culture supernatants of Bacillus subtilis (PTCC 1023) and Candida albicans (PTCC 5011) ( Minaeian et al, 2008 , Natarajan et al, 2010a , Natarajan et al, 2010b ). The prospect to acquire bio-nanoparticle shape monitoring by employ green biogenic approaches is expectant to open up a new spectacular way for ecofriendly, large scale, and economically applicable controlled shape biogenic of bio-nano materials ( Abdel-raouf et al, 2018 , Abdel-raouf et al, 2019 ).…”

Section: Discussionmentioning

confidence: 99%

Eco-friendly synthesis of silver nanoparticles by Bacillus subtilis and their antibacterial activity

Alsamhary

2020

Saudi Journal of Biological Sciences

111

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Bacillus subtilis was used for biogenic of silver nanoparticles. Characterization of the prepared silver nanoparticles was done by UV–Vis spectroscopy, Transmission Electron Microscopy (TEM), and Fourier Transform Infrared Spectroscopy (FT-IR). The particle size of the prepared nanoparticles ranges from 3 to 20 nm with spherical or roughly spherical forms. The antimicrobial efficacy of the produced nanoparticles was investigated against five strains of multidrug resistant microorganisms including: Staphylococcus aureus (MRSA), Staphylococcu s epidermidis , Klebsiella. pneumoniae, Escherichia coli and Candida albicans tested as yeast. During this study, the minimum inhibitory concentrations (MICs) and the minimum lethal concentrations (MLCs) of synthesized silver nanoparticles were detected using selected strains of the genus Bacillus by a broth dilution method. The rate of MIC of the prepared silver nano-particles versus the investigated clinical isolates exhibit a massive anti-microbial efficacy; (230 µgml −1 ) for MRSA; 180 for Staphylococcus epidermidis , 200 for Escherichia coli and 100 µgml −1 for Candida albicans . On the other hand, the lowest anti-microbial efficacy (300 µgml −1 ) was appeared for Klebsiella pneumonia. The obtained results demonstrated the effectiveness of the biogenic nanoparticles and the possibility of using them as a new method in combating infectious diseases.

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Section: Discussionmentioning

confidence: 99%

Eco-friendly synthesis of silver nanoparticles by Bacillus subtilis and their antibacterial activity

Alsamhary

2020

Saudi Journal of Biological Sciences

111

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“…Biosynthesized AgNPs (30–60 nm) using an isolated bacterium showed higher catalytic activity and stability towards the oxidation reaction of hydrazine [15]. Abdel-Raouf et al (2018) synthesized AgNPs (39.41–77.71 nm) using the marine red alga Laurencia catarinensis using a rapid biogenic process (2 min–3 h) [16]. Arunachalam et al (2012) used the leaf extract of Coccina grandis to successfully synthesize AgNPs with suitable activity for the degradation of Coomassie Brilliant Blue under UV light [17].…”

Section: Introductionmentioning

confidence: 99%

Green Biosynthesis of Silver Nanoparticles Using Eriobotrya japonica (Thunb.) Leaf Extract for Reductive Catalysis

Tang

Liu

et al. 2019

Materials

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This article reports on silver nanoparticles (AgNPs) that were green-synthesized by using Eriobotrya japonica (Thunb.) leaf extract and their use for the catalytic degradation of reactive dyes. The properties of biogenic AgNPs were characterized using UV-vis absorption spectroscopy, field emission scanning electron microscope (FESEM), X-ray powder diffraction (XRD), transmission electron microscope (TEM), Fourier transforming infrared spectroscopy (FTIR), energy dispersive X-ray spectroscopy (EDS), and selected area electron diffraction (SAED) analysis. The UV-vis spectroscopy and X-ray analyses confirmed the formation of AgNPs and showed the strong absorbance around 467 nm with surface plasmon resonance (SPR). The mean diameter of biogenic AgNPs at room (20 °C), moderate (50 °C), and high temperatures (80 °C) were 9.26 ± 2.72, 13.09 ± 3.66, and 17.28 ± 5.78 nm, respectively. The reaction temperature had significant impacts on the sizes of synthesized AgNPs. The higher the synthesis temperature, the larger size and the lower catalysis activity for reductive decomposition of reactive dyes via NaBH4. The results supported a bio-green approach for developing AgNPs with a small size and stable degradation activity of reactive dyes over 92% in 30 min by using Eriobotrya japonica (Thunb.) leaf extract at pH 7, 20 °C, and 1:10 ratio of silver nitrate added to the leaf extract.

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“…In comparison to physical and chemical methods, there are no harmful chemicals present in biogenically produced nanoparticles. Another advantage of the biogenic scheme of manufacturing is that such methods need not the addition of a stabilizing compounds on the nanoparticle surface in order to achieve long-term pharmacological activity [117]. Additionally, biogenic synthesis time is much shorter than using physicochemical processes as described in the following examples.…”

Section: Discussionmentioning

confidence: 99%

Biogenic Nanoparticles: Synthesis, Characterisation and Applications

et al. 2021

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Nanotechnology plays a big part in our modern daily lives, ranging from the biomedical sector to the energy sector. There are different physicochemical and biological methods to synthesise nanoparticles towards multiple applications. Biogenic production of nanoparticles through the utilisation of microorganisms provides great advantages over other techniques and is increasingly being explored. This review examines the process of the biogenic synthesis of nanoparticles mediated by microorganisms such as bacteria, fungi and algae, and their applications. Microorganisms offer a disparate environment for nanoparticle synthesis. Optimum production and minimum time to obtain the desired size and shape, to improve the stability of nanoparticles and to optimise specific microorganisms for specific applications are the challenges to address, however. Numerous applications of biogenic nanoparticles in medicine, environment, drug delivery and biochemical sensors are discussed.

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Rapid biosynthesis of silver nanoparticles using the marine red alga Laurencia catarinensis and their characterization

Cited by 30 publications

References 13 publications

Eco-friendly synthesis of silver nanoparticles by Bacillus subtilis and their antibacterial activity

Eco-friendly synthesis of silver nanoparticles by Bacillus subtilis and their antibacterial activity

Green Biosynthesis of Silver Nanoparticles Using Eriobotrya japonica (Thunb.) Leaf Extract for Reductive Catalysis

Biogenic Nanoparticles: Synthesis, Characterisation and Applications

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