Application of response surface methodology to optimize the extracellular fungal mediated nanosilver green synthesis

Othman, Abdelmageed M.; Elsayed, Maysa A.; Elshafei, Ali M.; Hassan, Mohamed M.

doi:10.1016/j.jgeb.2017.08.003

Cited by 50 publications

(40 citation statements)

References 19 publications

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“…Among different fungi genera, biosynthesis of AgNPs using Trichoderma spp. is more convincing and safer for the environment in comparison with synthesis by other fungi [ 14 , 15 , 16 , 17 , 18 , 19 , 20 ]. Meanwhile, Trichoderma spp.…”

Section: Introductionmentioning

confidence: 99%

Mycosynthesis of Silver Nanoparticles Using Screened Trichoderma Isolates and Their Antifungal Activity against Sclerotinia sclerotiorum

Tomah

Alamer

et al. 2020

Nanomaterials

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To control the disease caused by Sclerotinia sclerotiorum, a total of 15 isolates of the Trichoderma species was screened for the biosynthesis of silver nanoparticles (AgNPs). Among them, the highest yield occurred in the synthesis of AgNPs using a cell-free aqueous filtrate of T.virens HZA14 producing gliotoxin. The synthetic AgNPs were charactered by SEM, EDS, TEM, XRD, and FTIR. Electron microscopy studies revealed that the size of AgNPs ranged from 5–50 nm and had spherical and oval shapes with smooth surfaces. Prepared AgNPs interacted with protein, carbohydrate and heterocyclic compound molecules, and especially, interaction patterns of AgNPs with the gliotoxin molecule were proposed. The antifungal activity assays demonstrated that percentage inhibition of the prepared AgNPs was 100, 93.8 and 100% against hyphal growth, sclerotial formation, and myceliogenic germination of sclerotia at a concentration of 200 μg/mL, respectively. The direct interaction between nanoparticles and fungal cells, including AgNPs’ contact, accumulation, lamellar fragment production and micropore or fissure formation on fungal cell walls, was revealed by SEM and EDS. These will extend our understanding of the mechanisms of AgNPs’ action for preventing diversified fungal disease.

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Section: Introductionmentioning

confidence: 99%

Mycosynthesis of Silver Nanoparticles Using Screened Trichoderma Isolates and Their Antifungal Activity against Sclerotinia sclerotiorum

Tomah

Alamer

et al. 2020

Nanomaterials

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“…, ; Othman et al . ), Trichoderma harzianum (Ahluwalia et al . ), Trichoderma gamsii IPT853 (Ottoni et al .…”

Section: Introductionmentioning

confidence: 99%

Physiochemical properties of Trichoderma longibrachiatum DSMZ 16517-synthesized silver nanoparticles for the mitigation of halotolerant sulphate-reducing bacteria

et al. 2018

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“…AgNPs are widely used in many fields of science and technology due to its unique physical and chemical properties including antibacterial, antiviral, and antifungal activities 1 . Hence, the synthesis and the characterization of AgNPs is an active research topic and there are many recent attempts discussing the optimality of AgNPs synthesis [2][3][4][5] . These papers address the optimization of the yield, 2,3 particle size, 4 or the absorbance 5 of AgNPs with respect to various process parameters such as silver nitrate concentration, pH, reaction time, etc.…”

Section: Introductionmentioning

confidence: 99%

“…Hence, the synthesis and the characterization of AgNPs is an active research topic and there are many recent attempts discussing the optimality of AgNPs synthesis [2][3][4][5] . These papers address the optimization of the yield, 2,3 particle size, 4 or the absorbance 5 of AgNPs with respect to various process parameters such as silver nitrate concentration, pH, reaction time, etc. The common strategy followed in such works is to adopt a response surface methodology (RSM), which is a statistical approach to optimize the reaction settings by accounting the interaction between the process parameters.…”

Section: Introductionmentioning

confidence: 99%

“…To the best of our knowledge, most of the published works [3][4][5] do not put forward a strategy to obtain a global solution for the underlying QP; instead they discuss the optimum interaction between any two process parameters using three-dimensional (3D) response surface graphs, in which the other parameters are fixed to specific values. Such a strategy fails to address the multi-variate optimization problem in its general form, in which the simultaneous interactions between all the parameters are important.…”

Section: Introductionmentioning

confidence: 99%

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A Grid search-based response surface methodology for the optimum biosynthesis of silver nanoparticles using Clerodendrum splendens

jayakumar¹

2019

Preprint

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In this paper, we propose a grid search algorithm using response surface methodology (RSM) for optimizing the biosynthesis of silver nanoparticles (AgNPs). A biological method using hot water (HW) Clerodendrum splendens (C. splendens) leaf extract is adopted for the discussion. The RSM integrated central composite design (CCD) is used to derive a quadratic objective function to model the yield of AgNPs by accounting the effects of the processing parameters, namely, C. splendens concentration, pH, and the reaction time. The optimization of the resulting objective function, which is a challenging multi-variate non-convex problem, is solved using a grid search approach. The respective optimum values of the parameters are found to be 54 mL, pH 12, and 23 min and the corresponding AgNPs yield is experimentally verified.

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Application of response surface methodology to optimize the extracellular fungal mediated nanosilver green synthesis

Abstract: Graphical abstract

Cited by 50 publications

References 19 publications

Mycosynthesis of Silver Nanoparticles Using Screened Trichoderma Isolates and Their Antifungal Activity against Sclerotinia sclerotiorum

Mycosynthesis of Silver Nanoparticles Using Screened Trichoderma Isolates and Their Antifungal Activity against Sclerotinia sclerotiorum

Physiochemical properties of Trichoderma longibrachiatum DSMZ 16517-synthesized silver nanoparticles for the mitigation of halotolerant sulphate-reducing bacteria

A Grid search-based response surface methodology for the optimum biosynthesis of silver nanoparticles using Clerodendrum splendens

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