Potentiality of Neopestalotiopsis clavispora ASU1 in biosorption of cadmium and zinc

Hassan, Sedky H.A.; Koutb, Mostafa; Nafady, Nivien A.; Hassan, Elhagag Ahmed

doi:10.1016/j.chemosphere.2018.03.114

Cited by 46 publications

(18 citation statements)

References 43 publications

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“…The discovery of metal-tolerant endophytic fungi for the synthesis of metal nanoparticles could be of further major advantage (19)(20)(21). N. clavispora, a species linked to the Pestalotiopsis genus, has been used as an effective biosorbent for the removal of Cd(II) and Zn (II) from an aqueous solution (22).…”

Section: Introduction Introductionmentioning

confidence: 99%

Synthesis, Characterization, and Optimization of Green Silver Nanoparticles Using Neopestalotiopsis clavispora and Evaluation of Its Antibacterial, Antibiofilm, and Genotoxic Effects

Kahraman

Korcan

Liman

et al. 2021

The EuroBiotech Journal

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Silver nanoparticles (AgNPs) have been used in a variety of biomedical applications in the last two decades, including antimicrobial, anti-inflammatory, and anticancer treatments. The present study highlights the extracellular synthesis of silver nanoparticles AgNPs using Neopestalotiopsis clavispora MH244410.1 and its antibacterial, antibiofilm, and genotoxic properties. Locally isolated N. clavispora MH244410.1 was identified by Internal transcribed spacer (ITS) sequences of nuclear ribosomal DNA. Optimization of synthesized AgNPs was performed by using various parameters (pH (2, 4, 7, 9 and 12), temperature (25, 35 and 45 °C), and substrate concentration (0.05, 0.1, 0.15, 0.2 and 0.25 mM)). After 72 hours of incubation in dark conditions, the best condition for the biosynthesis of AgNPs was determined as 0.25 mM metal concentration at pH 12 and 35 °C. Fungal synthesized AgNPs were characterized via spectroscopic and microscopic techniques such as Fouirer Transform Infrared Spectrophotometer (FTIR), UV-Visible Spectroscopy, and Transmission Electron Microscopy (TEM). The average size of the AgNPs was determined less than 60 nm using the TEM and Zetasizer measurement system (measured in purity water suspension). The characteristic peak of AgNPs was observed at ~414 nm from UV-Vis results. Antibacterial and genotoxic activity of synthesized AgNPs (0.1, 1, and 10 ppm) were also determined by using the agar well diffusion method and in vivo Somatic Mutation and Recombination Test (SMART) in Drosophila melanogaster. AgNPs exhibited potential antimicrobial activity against all the tested bacteria (Bacillus subtilis, Staphylococcus aureus, and Pseudomonas aeruginosa) except Escherichia coli in a dose-dependent manner. AgNPs did not induce genotoxicity in the Drosophila SMART assay. 79.33, 65.47, and 41.95% inhibition of biofilms formed by P. aeruginosa were observed at 10, 1, and 0.1 ppm of AgNPs, respectively. The overall results indicate that N. clavispora MH244410.1 is a good candidate for novel applications in biomedical research.

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Section: Introduction Introductionmentioning

confidence: 99%

Synthesis, Characterization, and Optimization of Green Silver Nanoparticles Using Neopestalotiopsis clavispora and Evaluation of Its Antibacterial, Antibiofilm, and Genotoxic Effects

Kahraman

Korcan

Liman

et al. 2021

The EuroBiotech Journal

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“…In the process of physical adsorption, the reaction rate constant of EPS adsorption of Se(IV) was higher than that of Zn(II), while in the ion exchange adsorption process, the adsorption rate constant of Zn(II) adsorption by EPS was higher than that of Se(IV). Table S3 presents the biosorption amount of heavy metals by EPS in different studies [48][49][50][51][52]. The results showed that the adsorption capacity of EPS in the coexistence system was stronger than that under the single-factor condition.…”

Section: Biosorption Process Of Zn(ii) and Se(iv) By Epsmentioning

confidence: 99%

Enhanced biodegradation of m-dichlorobenzene by Brevibacillus agri under the coexistence system of Zn(II) and Se(IV)

Yang

Shang

et al. 2020

Environmental Pollutants and Bioavailability

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“…Toxic material can be absorbed by inactive and non-living microbial dry biomass; these accumulate heavy metals from water bodies and thus retain them in concentrated form (Shamim, 2016;Shamim, 2018). The removal of heavy metals from polluted wastewaters by microbial biomass has been extensively studied and is now gaining more attention due to the technique's superior performance and capacity to work over a broad range of abiotic conditions (temperature, pH, ionic strength), and for its widespread availability in large quantities (Abdolali et al, 2017;Bakircioglu and Akman, 2010;Hassan et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…The mechanism of heavy metal removal by nonliving fungal biomass is a metabolism-independent process, in which metal accumulation to the fungal cell walls is the major mechanism and occurs via an adsorption process (ionic and physicochemical adsorption) (Ahemad and Kibret, 2013;Javanbakht et al, 2014). Fungal cell walls contain a range of functional groups such as COO -, NH2, OH -, PO4, and SH groups, which react with heavy metals leading to a passive uptake from contaminated wastewater to the biomass (Hassan et al, 2018;Shamim, 2018;Simonescu and Ferdeş, 2012). The mechanism of metal biosorption by microbes occurs through complexation, coordination, physical adsorption, chelation, ion exchange, inorganic precipitation, and/or a combination of these processes (Hassan et al, 2018;Javanbakht et al, 2014;Salvadori et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Cadmium biosorption potential and kinetic behavior of endophytic Fusarium verticillioides and its green synthesized silver nanoparticles (GSNPs)

2021

Global NEST: The International Journal

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<p>Silver nanoparticles (GSNPs) were synthesized from extracellular metabolites of endophytic isolates of Fusarium verticillioides (KT587649) to evaluate their efficiency as new biosorbent agents for the exclusion of cadmium Cd (II) from aquatic systems. The GSNPs were characterized through X-ray diffraction (XRD) and transmission electron microscopy (TEM). Results show that the most efficient Cd (II) removal rate by both biosorbents was at pH 7.0. The optimal contact times were 30 and 40 min by F. verticillioides and GSNPs, respectively. Langmuir adsorption isotherms revealed that the highest calculated adsorption capacities of F. verticillioides and GSNPs for Cd (II) were 185±0.25 mg/g and 176±0.18 mg/g, respectively. The harmonized adsorption isotherms (between the Freundlich isotherm and Langmuir models) indicated a high correlation coefficient (r2 > 0.97). The kinetics of the biosorption process fitted well with the pseudo-second-order kinetic model. This study has thus confirmed the biosorbent capacity of F. verticillioides and its GSNPs for the exclusion of Cd (II) from any contaminated aquatic system and shows it is an eco-friendly method with great feasibility and potential to convey economic and other benefits in wastewater treatment technologies</p>

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Potentiality of Neopestalotiopsis clavispora ASU1 in biosorption of cadmium and zinc

Cited by 46 publications

References 43 publications

Synthesis, Characterization, and Optimization of Green Silver Nanoparticles Using Neopestalotiopsis clavispora and Evaluation of Its Antibacterial, Antibiofilm, and Genotoxic Effects

Synthesis, Characterization, and Optimization of Green Silver Nanoparticles Using Neopestalotiopsis clavispora and Evaluation of Its Antibacterial, Antibiofilm, and Genotoxic Effects

Enhanced biodegradation of m-dichlorobenzene by Brevibacillus agri under the coexistence system of Zn(II) and Se(IV)

Cadmium biosorption potential and kinetic behavior of endophytic Fusarium verticillioides and its green synthesized silver nanoparticles (GSNPs)

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