Novel zinc(II)/chitosan-based composite: ultrasound-assisted synthesis, catalytic and antibacterial activity

2020 ◽  
Vol 30 (5) ◽  
pp. 642-644
Author(s):  
Andreii S. Kritchenkov ◽  
Alexander I. Kurachenkov ◽  
Anton R. Egorov ◽  
Niyaz Z. Yagafarov ◽  
Elena A. Fortalnova ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Ultrasound Assisted

scholarly journals New Eco-Friendly 1-Alkyl-3-(4-phenoxybutyl) Imidazolium-Based Ionic Liquids Derivatives: A Green Ultrasound-Assisted Synthesis, Characterization, Antibacterial Activity and POM Analyses

Molecules ◽  
2014 ◽  
Vol 19 (8) ◽  
pp. 11741-11759 ◽  
Author(s):  
Mouslim Messali ◽  
Mohamed Aouad ◽  
Wael El-Sayed ◽  
Adeeb Al-Sheikh Ali ◽  
Taibi Ben Hadda ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Ionic Liquids ◽  
Pom Analyses ◽  
Ultrasound Assisted

Ultrasound-assisted synthesis and antibacterial activity of gallic acid-chitosan modified silver nanoparticles

2019 ◽  
Vol 129 ◽  
pp. 229-235 ◽  
Author(s):  
Katherine Guzmán ◽  
Brajesh Kumar ◽  
Maria Jose Vallejo ◽  
Marcelo Grijalva ◽  
Alexis Debut ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Antibacterial Activity ◽  
Gallic Acid ◽  
Ultrasound Assisted

Ultrasound-assisted synthesis and antibacterial activity of novel 1,3,4-thiadiazole-1H-pyrazol-4-yl-thiazolidin-4-one derivatives

2020 ◽  
Vol 151 (6) ◽  
pp. 981-990 ◽  
Author(s):  
Nagaraju Kerru ◽  
Lalitha Gummidi ◽  
Sandeep V. H. S. Bhaskaruni ◽  
Surya Narayana Maddila ◽  
Sreekantha B. Jonnalagadda
Keyword(s):  
Antibacterial Activity ◽  
Ultrasound Assisted

Ultrasound-assisted coating of nylon 6,6 with silver nanoparticles and its antibacterial activity

2007 ◽  
Vol 104 (3) ◽  
pp. 1423-1430 ◽  
Author(s):  
N. Perkas ◽  
G. Amirian ◽  
S. Dubinsky ◽  
S. Gazit ◽  
A. Gedanken
Keyword(s):  
Silver Nanoparticles ◽  
Antibacterial Activity ◽  
Nylon 6,6 ◽  
Ultrasound Assisted

scholarly journals Simultaneous ultrasound-assisted hydrodistillation of essential oil from aerial parts of the Satureja khuzistanica Jamzad and its antibacterial activity

2021 ◽  
Vol 20 (80) ◽  
pp. 47-59
Author(s):  
Seyed Reza Rasouli ◽  
Samad Nejad Ebrahimi ◽  
Hassan Rezadoost ◽  
◽  
◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Essential Oil ◽  
Aerial Parts ◽  
Ultrasound Assisted

Green Synthesis of Silver Nanoparticles using Datura metel Flower Extract Assisted by Ultrasound Method and Its Antibacterial Activity

2021 ◽  
Vol 15 ◽  
Author(s):  
Is Fatimah ◽  
Habibi Hidayat ◽  
Bambang Nugroho ◽  
Saddam Husein
Keyword(s):  
Particle Size ◽  
Silver Nanoparticles ◽  
Antibacterial Activity ◽  
Green Synthesis ◽  
Ag Nps ◽  
Ultrasound Method ◽  
Flower Extract ◽  
Datura Metel ◽  
Uv Visible ◽  
Ultrasound Assisted

Background: Green synthesis method of nanoparticles has been developed for several years. Besides providing an environmental-friendly process, the green synthesis of nanoparticles using plant extract provides a synergistic effect of the secondary metabolite. In recent times, the study involving the intensification process in nanoparticle formation also attracts great attention. This research deals with the green synthesis of silver nanoparticles using Datura metel flower extract as an antibacterial agent. The use of an ultrasound-assisted method for the synthesis is also investigated in this study. Methods: Synthesis of silver nanoparticles (AgNPs) using Datura metel flower extract under ultrasound-assisted method has been conducted. Evaluation of the successful synthesis was done using UV-visible spectrophotometry, particle size analyzer, x-ray diffraction, and transmission electron microscopy. The prepared AgNPs were tested as antibacterial against S. aureus, K. pneumoniae, S. pyogenes, and E. coli. Results: The ultrasound-assisted synthesis of AgNPs produces particles ranging from 25-70 nm in size; meanwhile, the reflux method demonstrated the size of 50-170 nm. These particle sizes represent the effect of the antibacterial activity as the ultrasound-assisted synthesized Ag NPs have a higher inhibition zone towards all tested bacteria. Subsequently, these data presented the applicability of Ag NPs synthesis using an ultrasound method as a potential candidate for biomedical applications. Conclusion: The profile of UV-Visible spectra and particle size analyses demonstrated the applicability of the ultrasound technique to produce a smaller size of the nanoparticles with higher antibacterial activity.

scholarly journals Extraction of metabolites from Calendula officinalis and evaluation of their colorant and antibacterial capacity

2020 ◽  
Vol 22 (1) ◽  
pp. 60-69
Author(s):  
Laura Cristina Rojas Bedoya ◽  
Katherine Gómez López ◽  
Nathalia Marín Pareja
Keyword(s):  
Antibacterial Activity ◽  
Bioactive Compounds ◽  
Dairy Product ◽  
Extraction Technique ◽  
Calendula Officinalis ◽  
Ultrasound Assisted Extraction ◽  
Assisted Extraction ◽  
Uv Visible ◽  
Ultrasound Assisted ◽  
Antibacterial Capacity

In this work, different bioactive compounds were obtained from Calendula officinalis by using conventional soxhlet extraction, shaker-assisted extraction and ultrasound-assisted extraction. The effect of different extraction time and temperature on the quantity of bioactive compounds obtained was investigated. The extracts obtained were further analyzed by UV–visible spectrometric analysis. The effect of extraction technique on both the colorant power of carotenoids and antibacterial capacity of the flavonoids was evaluate. Colorant power was evaluated by UV–visible spectrometric and dyeing ability in dairy product. Antibacterial activity of extracts was developed against Escherichia coli and Salmonella typhimurium by diffusion technique in well. Outstanding extraction results were obtained by ultrasound extraction technique performed during 2 hours, at 30°C and with 96% ethanol, for bioactive compounds evaluated. The same treatment showed the best result in colorant power and dyeing ability. The extracts obtained by ultrasound had a slightly inhibitory effect of growth on E. coli in comparison with the other techniques, while none of the extracts obtained from the different techniques reported a significant inhibition on the growth of S. Typhi. Therefore, ultrasound-assisted extraction is considered as an alternative process for obtaining the bioactive compounds from C. officinalis with high concentration, colorant power and antibacterial activity.

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