scholarly journals Synthesis and anti-fungal effect of silver nanoparticles–chitosan composite particles

2015 ◽  
pp. 2685 ◽  
Author(s):  
Keng-Shiang Huang ◽  
Lung-Shuo Wang ◽  
Chih-Yu Wang ◽  
Chih-Hui Yang ◽  
Chen-Ling Hsieh ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Composite Particles ◽  
Anti Fungal ◽  
Chitosan Composite

scholarly journals Synthesis of Silver Nanoparticles–Chitosan Composite Particles Spheres and Their Antimicrobial Activities

Polymers ◽  
2021 ◽  
Vol 13 (22) ◽  
pp. 3990
Author(s):  
Erisna Mirda ◽  
Rinaldi Idroes ◽  
Khairan Khairan ◽  
Trina Ekawati Tallei ◽  
Muliadi Ramli ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Inhibition Zone ◽  
Antimicrobial Activities ◽  
Composite Particles ◽  
Average Particle ◽  
X Ray Diffraction ◽  
Vis Spectroscopy ◽  
Activity Screening ◽  
Index Value ◽  
Chitosan Composite

Synthesis of silver nanoparticles–chitosan composite particles sphere (AgNPs-chi-spheres) has been completed and its characterization was fulfilled by UV–vis spectroscopy, Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), and zetasizer nano. UV–vis spectroscopy characterization showed that AgNPs-chi-spheres gave optimum absorption at a wavelength of 410 nm. The XRD spectra showed that the structure of AgNPs-chi-spheres were crystalline and spherical. Characterization by SEM showed that AgNPs-chi-spheres, with the addition of 20% of NaOH, resulted in the lowest average particle sizes of 46.91 nm. EDX analysis also showed that AgNPs-chi-spheres, with the addition of a 20% NaOH concentration, produced particles with regular spheres, a smooth and relatively nonporous structure. The analysis using zetasizer nano showed that the zeta potential value and the polydispersity index value of the AgNPs-chi-sphere tended to increase with an increased NaOH concentration. The results of the microbial activity screening showed that the AgNP-chi-Spheres with highest concentration of NaOH, produced the highest inhibition zone diameters against S. aureus, E. coli, and C. albicans, with inhibition zone diameters of 19.5, 18.56, and 12.25 nm, respectively.

Magnetic chitosan composite particles: Evaluation of thorium and uranyl ion adsorption from aqueous solutions

2012 ◽  
Vol 87 (2) ◽  
pp. 1185-1191 ◽  
Author(s):  
Doina Hritcu ◽  
Doina Humelnicu ◽  
Gianina Dodi ◽  
Marcel Ionel Popa
Keyword(s):  
Aqueous Solutions ◽  
Uranyl Ion ◽  
Composite Particles ◽  
Ion Adsorption ◽  
Magnetic Chitosan ◽  
Chitosan Composite

Marine Actinomycetes Derived Pyrrolo Compounds Mediated Green Synthesis of AgO and Ag2O3 Nanoparticles and its Antidermatophytic Activity

2020 ◽  
Vol 10 (6) ◽  
pp. 868-875
Author(s):  
Lokesh Ravi ◽  
Riven Chocalingam ◽  
Vignesh Menta ◽  
Kannabiran Krishnan
Keyword(s):  
Silver Nanoparticles ◽  
Green Synthesis ◽  
Xrd Analysis ◽  
Marine Actinomycetes ◽  
Green Catalyst ◽  
Characterization Methods ◽  
Silver Oxide Nanoparticles ◽  
Biological Sources ◽  
Anti Fungal ◽  
Antidermatophytic Activity

Background: Antimicrobial potential of silver nanoparticles synthesised by using various biological sources was already been reported by many researchers. The green synthesis of silver nanoparticles using microbial sources has been proved to be more effective. Methods: In this study, anti-dermatophytic silver nanoparticles were synthesised by using pyrrolo metabolites producing actinomycetes as a green catalyst. Different characterization methods such as UV-Visible, XRD, and AFM were used to identify the physiochemical characteristics of synthesised nanoparticles. Results: The synthesised nanoparticles showed λ-max at 427 nm and 402 nm, respectively. The XRD analysis based on the JCPDS database identified the two synthesized nanoparticles as silver oxide nanoparticles (AgO NPs) and silver peroxide nanoparticles (Ag2O3 NPs). The size of these nanoparticles was found to be in the range of 40-44 nm (AgO NPs) and 23-25 nm (Ag2O3 NPs), respectively. The synthesized nanoparticles demonstrated significant anti-fungal activity against dermatophytic fungi Trichophyton mentagrophyes with the zone of inhibition of 38 mm by AgO NP and 17 mm by Ag2O3 NPs. Conclusion: Screening of marine actinomycetes LG003 and LG005 revealed the presence of pyrrolo derivatives as the major metabolites, suggesting that these pyrrolo derivatives could be responsible for synthesis and stabilization of AgO and Ag2O3NPs. Among the synthesized NPs, the AgO NPs showed great potential as an anti-dermatophytic agent. This study provides further research opportunities for AgONPs as anti-fungal agents.

Magnetite/chitosan composite particles as adsorbents for Reactive Blue 19 dye

2018 ◽  
Vol 6 (4) ◽  
pp. 149-156 ◽  
Author(s):  
Alina Ibanescu ◽  
Maria Celina Alexandrica ◽  
Doina Hritcu ◽  
Ovidiu Chiscan ◽  
Marcel Ionel Popa
Keyword(s):  
Composite Particles ◽  
Reactive Blue 19 ◽  
Chitosan Composite

Development and Characterization of Silver nanoparticles (AgNPs) using Aqueous leaves broth of Artemisia vulgaris L., and its Anti-fungal activity

2019 ◽  
Vol 12 (10) ◽  
pp. 4822 ◽  
Author(s):  
Gayathri Kumararaja ◽  
P N Saneesha ◽  
S Satheesh Kumar ◽  
V V Shahana Parveen ◽  
Shaikh Fuzail Abdur Rahim ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Artemisia Vulgaris ◽  
Fungal Activity ◽  
Anti Fungal

Characterization of bio‐fabricated silver nanoparticles for distinct anti‐fungal activity against sugarcane phytopathogens

2021 ◽  
Author(s):  
Amna ◽  
Tariq Mahmood ◽  
Umar Nawaz Khan ◽  
Babar Amin ◽  
Muhammad Tariq Javed ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Fungal Activity ◽  
Anti Fungal
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