Microwave-assisted polycrystalline Ag/AgO/AgCl nanocomposites synthesis using banana corm (rhizome of Musa sp.) extract: Characterization and antimicrobial studies

In the present work, we report the one pot synthesis of tetrazole based 3-hydroxy-4H-chromen-4-ones 3(a-g) from 4-(1H-tetrazol-5-yl)benzaldehyde and 2-hydroxy acetophenone using KOH and H2O2 by modified Algar-Flynn-Oyamada reaction under conventional and microwave irradiation conditions. In this technique, flavonols are synthesized without isolating chalcones, in good yields. All the synthesized compounds were characterized by IR, NMR, MS and elemental. All newly synthesized compounds were screened for their in-vitro antimicrobial activity against strains such as Staphylococcus aurous, Bacillus subtilis, Klebsiella pneumonia, Escherichia coli, Aspergillus Niger, Aspergillus flavus, and Fusarium oxysporum. The results of antimicrobial studies revealed that most of the compounds exhibit good activity.

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Microwave-Assisted Synthesis of N-Alkylated Bibenzoimidazolyl Derivatives: Antimicrobial Studies

Letters in Drug Design & Discovery ◽

10.2174/1570180810906050380 ◽

2009 ◽

Vol 6 (5) ◽

pp. 380-386 ◽

Cited By ~ 1

Author(s):

S. Swamy ◽

C. Kavitha ◽

B. Priya ◽

S. Gaonkar ◽

M. Tejesvi ◽

...

Keyword(s):

Microwave Assisted Synthesis ◽

Microwave Assisted ◽

Antimicrobial Studies

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Microwave Assisted Synthesis, Characterization and Antimicrobial Studies of Complexes of Mn(II), Co(II), Ni(II) and Cu(II) with 2-Hydroxynicotinic Acid

Chemical Science Transactions ◽

10.7598/cst2018.1504 ◽

2018 ◽

Keyword(s):

Microwave Assisted Synthesis ◽

Microwave Assisted ◽

Antimicrobial Studies

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Preparation and Characterization of Silica Nanoparticles and of Silica-Gentamicin Nanostructured Solution Obtained by Microwave-Assisted Synthesis

Materials ◽

10.3390/ma14082086 ◽

2021 ◽

Vol 14 (8) ◽

pp. 2086

Author(s):

Violeta Purcar ◽

Valentin Rădiţoiu ◽

Cornelia Nichita ◽

Adriana Bălan ◽

Alina Rădiţoiu ◽

...

Keyword(s):

Silica Nanoparticles ◽

Research Work ◽

Basic Medium ◽

Diffusion Method ◽

Microwave Assisted Synthesis ◽

Force Microscopy ◽

Microwave Assisted ◽

Antimicrobial Studies ◽

Atomic Force ◽

Transmission Electron

In this research work, silica nanoparticles and silica-gentamicin nanostructured solution were synthesized by using the microwave-assisted synthesis, in basic medium, using two silane precursors (tetraethylorthosilicate and octyltriethoxysilane) and the antibiotic (gentamicin sulfate). The prepared materials were characterized through Fourier transform infrared (FTIR) spectroscopy, TGA analysis, transmission electron microscopy (TEM), and atomic force microscopy (AFM) to investigate the morphology and structure. Antimicrobial studies of the silica-gentamicin nanostructured solution versus silica nanoparticles were performed against Pseudomonas aeruginosa, Staphylococcus aureus, and Escherichia coli. FTIR spectra showed that the gentamicin has been loaded to the silica nanoparticles. AFM analysis showed that the morphology of the silica-gentamicin nanostructured solution has changed, and agglomerations of particles are present at the surface. Antimicrobial testing, performed using the diffusion method through spot inoculation, indicates that the silica-gentamicin nanostructured solution exhibited activity against the resistant strain. The obtained silica-gentamicin solution can be used as biochemical agent for the prevention and treatment of microorganisms which are deposited on different surfaces (e.g., glass, plastic, ceramic).

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Microwave-assisted synthesis of N-alkylated benzotriazole derivatives: Antimicrobial studies

Bioorganic & Medicinal Chemistry Letters ◽

10.1016/j.bmcl.2005.10.084 ◽

2006 ◽

Vol 16 (4) ◽

pp. 999-1004 ◽

Cited By ~ 33

Author(s):

S. Nanjunda Swamy ◽

Basappa ◽

G. Sarala ◽

B.S. Priya ◽

S.L. Gaonkar ◽

...

Keyword(s):

Microwave Assisted Synthesis ◽

Microwave Assisted ◽

Antimicrobial Studies ◽

Benzotriazole Derivatives

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RECOVERY OF THE BIOLOGICAL ACTIVE COMPOUNDS OF Musa Sp. THROUGH MICROWAVE ASSISTED EXTRACTION

IIUM Engineering Journal ◽

10.31436/iiumej.v18i2.812 ◽

2017 ◽

Vol 18 (2) ◽

pp. 105-116 ◽

Cited By ~ 1

Author(s):

Farhan M. Said

Keyword(s):

Antioxidant Activity ◽

Phenolic Compound ◽

Phenolic Content ◽

Irradiation Time ◽

Total Phenolic ◽

Microwave Assisted Extraction ◽

Liquid Ratio ◽

Microwave Assisted ◽

Musa Sp ◽

Assisted Extraction

The objective of this research was to identify the recovery of the biological active compound of Musa sp. thru microwave assisted extraction (MAE) system. Antioxidant activity and phenolic compound were investigated on the effect of temperature, microwave power, irradiation time and solid to liquid ratio. The extraction process was carried out using only distilled water as an extracting agent. The result showed that, at 70oC fresh Musa sp. extracted 45% higher antioxidant compared to the dried Musa sp. 500 W was the best power of MAE to extract antioxidant and phenolic compound of ripe Musa sp., while for unripe Musa sp. 800 W was the best. The best irradiation time was 90 s, where it extracted almost 90% antioxidant activity of ripe and unripe Musa sp. Almost 480 mg GA/100 g FW of total phenolic content was extracted on the unripe peel. Solid to liquid ratio of 3 : 60 was the best parameter to extract antioxidant and phenolic content of ripe and unripe Musa sp. Overall, antioxidant and phenolic compound were significantly higher in the unripe peel, followed by ripe peel, unripe pulp and ripe pulp.

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Antimicrobial Studies of Microwave Assisted Copper-Chitosan Nanocomposites

Advanced Science Letters ◽

10.1166/asl.2018.12148 ◽

2018 ◽

Vol 24 (8) ◽

pp. 5556-5559

Author(s):

M Meenakshi ◽

P Nithya ◽

Krishnendu Biswas

Keyword(s):

Escherichia Coli ◽

Ethylene Glycol ◽

Diffusion Method ◽

Cu Nanoparticles ◽

Disk Diffusion Method ◽

Microwave Assisted ◽

Antimicrobial Studies ◽

Mueller Hinton ◽

Mueller Hinton Agar ◽

Microwave Assisted Method

Copper-chitosan nanocomposite (Cu-CS NC) was prepared by incorporating copper onto chitosan using ethylene glycol by microwave assisted method. Ethylene glycol was used as a solvent as well as a reductant for preparing thenanocomposites. The antibacterial activity was tested against Bacillus cereus, Staphylococcus aureus, Escherichia coli and Proteus mirabilis by Mueller-Hinton agar disk-diffusion method. The observed activity was found to be superior when compared to bare Cu nanoparticles for most of the bacteria.

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