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

Green synthesis of silver nanoparticles has gained momentum since the demand to synthesize nanoparticles in an eco-friendly way has increased significantly. Here we report, economic and cost-effective biosynthesis of silver nanoparticles using waste of tea leaves (Camelia sinesis). The aim of the study was to biosynthesize silver nanoparticles and to assess its potential applications such as antibacterial activity, plant growth induction and dye degradation. Standardization studies were done using UV- Spectroscopy to determine the optimum synthesis condition for synthesis of silver nanoparticles. The optimum conditions were found to be pH 6.0, ambient temperature condition and 5mM AgNO3 concentration. Characterization studies using UV-Visible Spectroscopy, TEM and AFM analysis show nanoscale range of the particles. The silver nanoparticles showed maximum antibacterial activity against K. pneumonia followed by E. coli and minimum activity against C. diptheriae. The nanoparticles showed significant effect on the growth of Vigna radiata seeds at 50% concentration of nanoparticles. The particles immobilized on cotton cloth showed antibacterial activity against Gram positive organisms. Dye degradation studies showed that the nanoparticles are able to degrade phenol red and blue textile dye effectively.

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Green synthesis of silver nanoparticles, characterization and evaluation of their photocatalytic dye degradation activity

Current Research in Green and Sustainable Chemistry ◽

10.1016/j.crgsc.2021.100195 ◽

2021 ◽

pp. 100195

Author(s):

Swati Jaast ◽

Anita Grewal

Keyword(s):

Silver Nanoparticles ◽

Green Synthesis ◽

Dye Degradation ◽

Degradation Activity ◽

Photocatalytic Dye Degradation ◽

Nanoparticles Characterization

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Green Synthesis of Silver Nanoparticles Using Citrus Reticulata Juice and Evaluation of their Antibacterial Activity and Cytotoxicity Against Melanoma-B16/F10 Cells

Current Nanoscience ◽

10.2174/1573413711309040007 ◽

2013 ◽

Vol 9 (4) ◽

pp. 457-462 ◽

Cited By ~ 6

Author(s):

T.V.M. Sreekanth ◽

P. Nagajyothi ◽

T.N.V.K.V. Prasad ◽

Kap Lee

Keyword(s):

Silver Nanoparticles ◽

Antibacterial Activity ◽

Green Synthesis ◽

Citrus Reticulata ◽

Melanoma B16

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Sunlight irradiation‐assisted green synthesis, characteristics and antibacterial activity of silver nanoparticles using the leaf extract of Jasminum subtriplinerve Blume

Journal of Plant Biochemistry and Biotechnology ◽

10.1007/s13562-021-00667-z ◽

2021 ◽

Author(s):

Phung Anh Nguyen ◽

Hong Phuong Phan ◽

Trung Dang-Bao ◽

Van Minh Nguyen ◽

Nhat Linh Duong ◽

...

Keyword(s):

Silver Nanoparticles ◽

Antibacterial Activity ◽

Green Synthesis ◽

Leaf Extract ◽

Sunlight Irradiation

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Antibacterial activity of royal jelly-mediated green synthesized silver nanoparticles

AMB Express ◽

10.1186/s13568-021-01213-9 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Susanna Gevorgyan ◽

Robin Schubert ◽

Mkrtich Yeranosyan ◽

Lilit Gabrielyan ◽

Armen Trchounian ◽

...

Keyword(s):

Silver Nanoparticles ◽

Antibacterial Activity ◽

Green Synthesis ◽

Royal Jelly ◽

Fluorescence Emission ◽

Spherical Particles ◽

Ag Nps ◽

Gram Negative ◽

Green Synthesized Silver Nanoparticles ◽

Higher Sensitivity

AbstractThe application of green synthesis in nanotechnology is growing day by day. It’s a safe and eco-friendly alternative to conventional methods. The current research aimed to study raw royal jelly’s potential in the green synthesis of silver nanoparticles and their antibacterial activity. Royal jelly served as a reducing and oxidizing agent in the green synthesis technology of colloidal silver nanoparticles. The UV–Vis maximum absorption at ~ 430 nm and fluorescence emission peaks at ~ 487 nm confirmed the presence of Ag NPs. Morphology and structural properties of Ag NPs and the effect of ultrasound studies revealed: (i) the formation of polydispersed and spherical particles with different sizes; (ii) size reduction and homogeneity increase by ultrasound treatment. Antibacterial activity of different concentrations of green synthesized Ag NPs has been assessed on Gram-negative S. typhimurium and Gram-positive S. aureus, revealing higher sensitivity on Gram-negative bacteria.

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