Valorization of mutant Bacillus licheniformis M09 supernatant for green synthesis of silver nanoparticles: photocatalytic dye degradation, antibacterial activity, and cytotoxicity

Momin, Bilal; Rahman, Shakeelur; Jha, Neetu; Annapure, Uday S.

doi:10.1007/s00449-018-2057-2

Cited by 51 publications

(12 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…AgNPs produced by incubation of CFCS of Bacillus bacteria including B . amyloliquefaciens [26,29] and their antibacterial activities have been demonstrated by previous studies [22,23,26,29,30,31]. Here, we showed that both CFCS of B .…”

Section: Resultssupporting

confidence: 81%

“…The major band at 3416 cm −1 is attributed to N–H stretching vibrations; the distinctive peak at 1641 cm −1 is attributed to -C=O carbonyl group and –C=C stretching vibrations; the bands at 2920, 1530, 1394, and 1265 cm −1 are attributed to C–H stretching vibrations, C=N bond of Amide II, O–H deformation vibrations, and C–N stretching amine vibrations, respectively; the band at 523 cm −1 is attributed to C–Br stretching, which is characteristic of alkyl halides. The presence of these groups confirms the presence of proteins in CFCS of P. rhodesiae and suggests that these functional groups reduce Ag + for the synthesis of AgNPs and bind to AgNPs for the stabilization of the nanoparticles [30,33,34,35].…”

Section: Resultsmentioning

confidence: 90%

See 1 more Smart Citation

Green Synthesis of Silver Nanoparticles with Culture Supernatant of a Bacterium Pseudomonas rhodesiae and Their Antibacterial Activity against Soft Rot Pathogen Dickeya dadantii

et al. 2019

View full text Add to dashboard Cite

Bacterial stem and root rot disease of sweet potato caused by Dickeya dadantii recently broke out in major sweet potato planting areas in China and calls for effective approaches to control the pathogen and disease. Here, we developed a simple method for green synthesis of silver nanoparticles (AgNPs) using bacterial culture supernatants. AgNPs synthesized with the cell-free culture supernatant of a bacterium Pseudomonas rhodesiae displayed the characteristic surface plasmon resonance peak at 420–430 nm and as nanocrystallites in diameters of 20–100 nm determined by transmission electron microscopy, scanning electron microscopy, and X-ray diffraction spectroscopy. Functional groups associated with proteins in the culture supernatant may reduce silver ions and stabilize AgNPs. The AgNPs showed antibacterial activities against D. dadantii growth, swimming motility, biofilm formation, and maceration of sweet potato tubers whereas the culture supernatant of P. rhodesiae did not. AgNPs (12 µg∙ml−1) and AgNO3 (50 µg∙ml−1) showed close antibacterial activities. The antibacterial activities increased with the increase of AgNP concentrations. The green-synthesized AgNPs can be used to control the soft rot disease by control of pathogen contamination of sweet potato seed tubers.

show abstract

Section: Resultssupporting

confidence: 81%

Section: Resultsmentioning

confidence: 90%

Green Synthesis of Silver Nanoparticles with Culture Supernatant of a Bacterium Pseudomonas rhodesiae and Their Antibacterial Activity against Soft Rot Pathogen Dickeya dadantii

et al. 2019

View full text Add to dashboard Cite

show abstract

“…showed excellent antibacterial activity owing to its high surface area to volume ratio [28,29]. Green synthesized AgNPs are approved as efficient catalysts for photocatalytical degradation of organic pollutants [30][31][32][33]. Microwave synthesized AgNPs from bio-waste (banana leaves) extract are polydispersed in nature and exhibit prominent antibacterial activity.…”

Section: Introductionmentioning

confidence: 99%

Microwave assisted green synthesis of silver nanoparticles for optical, catalytic, biological and electrochemical applications

Anjana¹,

Joseph²,

Francis³

et al. 2021

Artificial Cells, Nanomedicine, and Biotechnology

View full text Add to dashboard Cite

Plant-derived nanoparticles have multi-functionalities owing to their ecological origin and biocompatible nature. A novel and stable silver nanoparticle (AgNP) was reported here using Cyanthillium cinereum (C. cinereum) as a reducing as well as capping agent by rapid microwave-assisted green method. The synthesized nanoparticles revealed their crystalline and spherical nature with an average size of 19.25 ± 0.44 nm in HR-TEM analysis. The excitation of electrons from occupied d-bands to states above the Fermi level while employing photoluminescence studies of AgNP indicated their awesome optical properties. Rapid decomposition of dangerous organic dyes like methylene blue and fuchsine in the catalytic presence of AgNP was evidenced from simple UV-visible spectral analysis. In vitro antioxidant potential assessed by DPPH assay indicated an IC 50 value of 40.80 ± 0.14 lg/mL for the new AgNP. A substantial control on the growth of pathogenic bacteria such as Staphylococcus aureus and Klebsiella pneumonia can be achieved by synthesized nanoparticles as demonstrated by the well diffusion method. AgNP was also functioned as a non-enzymatic electrochemical sensor with a sharp oxidation peak with peak potentials at 0.366 V and it has a wide application as a bio sensor in neurobiology especially in the detection of neurotransmitters like dopamine with high sensitivity.

show abstract

“…The blank used for nanoparticle characterization was redistilled water. In this study, water was selected as the solvent since it was suitable for specified reactions and is reported to be successfully applied in nanoparticle synthesis (Muley et al, 2020). The resulting nanosilver particles were characterized and presented in Figure 2.…”

Section: Resultsmentioning

confidence: 99%

Application of the central composite design approach for optimization of the nanosilver formula using a natural bioreductor from Camellia sinensis L. extract

Dwiastuti¹,

Suhendra²,

Yuliani³

et al. 2022

j app pharm sci

View full text Add to dashboard Cite

In recent years, the interest in applying the nanosilver technology in the medical field has increased due to its benefit for microbial inactivation. A natural bioreductor was chosen and developed in the nanosilver formulation to minimize the toxicity effects. The content of rutin makes it possible to develop an alternative bioreductor agent using black tea (Camellia sinensis L.) leaves extract. The aim of this research was to optimize the nanosilver formula consisting of black tea leaf extract and AgNO 3 with the employment of central composite design. The visible absorption wavelength and transmittance percentage were observed as dependent variables. The presence of rutin in the black tea leaves extract was proved using the thin-layer chromatography (TLC) technique. It was found that the extract concentration of 2.131% (m/v) and the AgNO 3 concentration of 1.379 mM were stated as the computational recommendation resulting from the predictive model with a composite desirability value at 0.998. These optimum conditions were applied in the synthesis of six nanosilver formula replications and resulted in the percentage of a prediction relative error of absorption wavelength and transmittance which were in the ranges of 1.18%-9.18% and 2.72%-8.64%, respectively. The Relative Standard Deviation (RSD) values of absorption wavelength and transmittance were 2.81% and 2.21%, respectively. The Z-average of the nanosilver particles was 124.8 nm.

show abstract

Valorization of mutant Bacillus licheniformis M09 supernatant for green synthesis of silver nanoparticles: photocatalytic dye degradation, antibacterial activity, and cytotoxicity

Cited by 51 publications

References 39 publications

Green Synthesis of Silver Nanoparticles with Culture Supernatant of a Bacterium Pseudomonas rhodesiae and Their Antibacterial Activity against Soft Rot Pathogen Dickeya dadantii

Green Synthesis of Silver Nanoparticles with Culture Supernatant of a Bacterium Pseudomonas rhodesiae and Their Antibacterial Activity against Soft Rot Pathogen Dickeya dadantii

Microwave assisted green synthesis of silver nanoparticles for optical, catalytic, biological and electrochemical applications

Application of the central composite design approach for optimization of the nanosilver formula using a natural bioreductor from Camellia sinensis L. extract

Contact Info

Product

Resources

About