scholarly journals Erratum: Zafar et al. Synthesis and Characterization of Potent and Safe Ciprofloxacin-Loaded Ag/TiO2/CS Nanohybrid against Mastitis-Causing E. coli. Crystals 2021, 11, 319

Crystals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 573
Author(s):  
Naheed Zafar ◽  
Bushra Uzair ◽  
Muhammad Bilal Khan Niazi ◽  
Ghufrana Samin ◽  
Asma Bano ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
E Coli

We sincerely apologize for the inconvenience of updating the authorship [...]

Electrospun PU/MgO/Ag Nanofibers for Antibacterial Activity and Flame Retardency

2021 ◽  
pp. 0887302X2110094
Author(s):  
V. Mamtha ◽  
H. N. Narasimha Murthy ◽  
V. Pujith Raj ◽  
Prashantha Tejas ◽  
C. S. Puneet ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Melting Point ◽  
Protective Clothing ◽  
Electrospun Nanofibers ◽  
Synthesis And Characterization ◽  
Zone Of Inhibition ◽  
Solution Combustion ◽  
E Coli ◽  
Afterglow Time

Antibacterial activity and fire retardation are equally desired for protective clothing. For achieving this, AgNP and MgO are independently researched as nanofillers in Polyurethane based electrospun nanofibers and their synergistic effect is scarcely addressed. This article reports synthesis and characterization of MgO of 70.01 nm and AgNP of 51 to 76 nm by solution combustion and hydrothermal routes respectively and their incorporation in electrospinning of Polyurethane. Flow rate 1 ml/hr, applied voltage 13 kV, tip to collector distance 15 cm were adopted for the electrospinning. Nanofibers of 65 nm were obtained for PU/MgO (3 wt. %) and 106 nm for PU/MgO (3 wt. %)/Ag (1 wt. %). Addition of MgO increased the melting point, after flame time and afterglow time. Incorporation of AgNP improved antibacterial activity. PU/MgO/Ag (2 wt. %) exhibited zone of inhibition of 2.1 cm and 3 cm against E. Coli and S. Aureus, respectively.

scholarly journals Green Synthesis and Characterization of Silver Nanoparticles using Crude Extract of Crotalaria burhia

2021 ◽  
Vol 8 (4) ◽  
Author(s):  
Khalil Ahmad ◽  
Raeesa Noor ◽  
Muhammad Younus ◽  
Akram Chohan ◽  
Ume Habiba ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Antibacterial Activity ◽  
Zeta Potential ◽  
Green Synthesis ◽  
Crude Extract ◽  
Bacterial Infections ◽  
Synthesis And Characterization ◽  
Phytochemical Analysis ◽  
E Coli

Background: Appearance of antibiotic resistance has raised the demand to find alternative therapies and modified drug delivery system of medicinal plants to treat bacterial infections. Objective: The aim of this study is the green synthesis and characterization of silver nanoparticles by using crude extract of Crotalaria burhia and to evaluate their antibacterial potential. Methods: The roots and stems of plant were used to prepare the crude extract. The phytochemical analysis of different compounds in extract was performed. 1mM AgNO3 and different concentrations of plant extract were used for the green synthesis of silver nanoparticles. The particles size and zeta potential were measured by zeta sizer while surface morphology of silver nanoparticles was observed with Scanning Electron Microscope (SEM). The antibacterial activity of silver nanoparticles was performed by 96 well microdilution plate method. Results: The particle size and zeta potential of optimized formulation was 92 nm and -24.8 mV. The SEM analysis showed that silver nanoparticles are irregular and spherical shape. The antibacterial activity showed that MIC value of silver nanoparticles was lower for E. coli than S. aureus. Conclusion: Silver nanoparticles possess potent bactericidal activity against E. coli and moderate activity against S. aureus. It had been concluded that these nanoparticles can be used against multi-drug resistant bacterial infections.

Synthesis and Characterization of Novel 1,3,5-Thiadiazine Derivatives Integrated with Quinoline Moiety as Potent Antimicrobial Agents

2020 ◽  
Vol 5 (2) ◽  
pp. 149-155
Author(s):  
M. Idrees ◽  
Naqui J. Siddiqui ◽  
Yogita G. Bodkhe ◽  
Satish Kola
Keyword(s):  
13C Nmr ◽  
Mass Spectra ◽  
Antimicrobial Agents ◽  
Synthesis And Characterization ◽  
Pathogenic Microorganism ◽  
Bacterial Strains ◽  
Gram Negative ◽  
E Coli

An expeditious synthesis of series of novel 1,3,5-thiadiazine (5a-f) and (6a-f) derivatives have been described. These compounds were synthesized by reaction of 1-(N-((6-methyl-2-(p-tolyloxy)quinoline- 3-yl)methylene)carbamimidoyl)-3-arylthiourea (3a-b) derivatives with N-aryl isocyanodichloride (4a-c) in chloroform followed by basification with dilute NH4OH to give the target compounds 5a-f; which were acetylated further to afford six novel 1,3,5-thiadiazin-3-(6H)-yl)ethanone (6a-f) derivatives. Synthesis of intermediate compounds 3a-b was obtained by reacting 6-methyl-2-(p-tolyloxy)quinoline-3- carbaldehyde (2a) and 1-carbamimidoyl-3-aryllthiourea (1a-b) in chloroform. Structures of compounds 5a-f and 6a-f were established by FTIR, 1H & 13C NMR, mass spectra and further supported by elemental analysis. All synthesized compounds were investigated for their in vitro antimicrobial screening against a panel of pathogenic microorganism comprising S. aureus as Gram positive while E. coli, P. vulgaris, S. typhi as Gram-negative bacterial strains.

Synthesis and characterization of titania nanorods from ilmenite for photocatalytic annihilation of E. coli

2014 ◽  
Vol 140 ◽  
pp. 69-78 ◽  
Author(s):  
Diptipriya Sethi ◽  
Naresh Jada ◽  
Rohit Kumar ◽  
Sakthivel Ramasamy ◽  
Sony Pandey ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
E Coli

Synthesis and Characterization of Cellulose/Quaternary Phosphonium Salt

2013 ◽  
Vol 842 ◽  
pp. 138-141 ◽  
Author(s):  
Fan Long Kong ◽  
Jun Song ◽  
Bo Wen Cheng ◽  
Yun Bo Zheng
Keyword(s):  
Phosphonium Salt ◽  
Antibacterial Property ◽  
Antibacterial Properties ◽  
Synthesis And Characterization ◽  
Cellulose Structure ◽  
E Coli ◽  
Mechanical Stirring ◽  
H Nmr ◽  
Quaternary Phosphonium Salt

This paper investigates imparting antibacterial properties to wood pulp cellulose via introducing quaternary phosphonium salt groups in/onto the cellulose structure to get biocidal material. The 4-carboxybutyltriphenylphosphonium bromide was grafted to cellulose in an esterification at 70°C with mechanical stirring 5h.The grafted cellulose were evaluated with FTIR and 1H NMR. The product shows good antibacterial property against E. coli.

scholarly journals Synthesis and Characterization of ZnO-Nanocomposites by Utilizing Aloe Vera Leaf Gel and Extract of Terminalia arjuna Nuts and Exploring Their Antibacterial Potency

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Amara Dar ◽  
Rabia Rehman ◽  
Warda Zaheer ◽  
Umer Shafique ◽  
Jamil Anwar
Keyword(s):  
Aloe Vera ◽  
Diffusion Method ◽  
Synthesis And Characterization ◽  
Terminalia Arjuna ◽  
Disc Diffusion ◽  
Bacterial Strains ◽  
Disc Diffusion Method ◽  
Environment Friendly ◽  
E Coli

Nanotechnology has found vast applications in everyday life. Use of plant extract in the synthesis of nanocomposites produces relatively less toxic and environment-friendly materials. The present study deals with the synthesis of zinc oxide nanocomposite using gel from leaves of Aloe vera (black Aloe vera (BAV) and white Aloe vera (WAV)) and extract from powder of nuts of Terminalia arjuna. Synthesized nanocomposites were then characterized by using SEM, FTIR, and UV-Vis techniques. Disc diffusion method was opted to inquire the antimicrobial ability of nanocomposites against different bacterial strains such as Escherichia coli (−) and Burkholderia stabilis (+). ZnO-BAV possessed good antimicrobial potential against both selected strains as proved from zone of inhibitions. However, ZnO-WAV and ZnO-N showed potential against E. coli and no response for B. stabilis.

scholarly journals Synthesis and Characterization of New Compounds Derived from Pyrrolidine-2-One and Evaluation of their Biological Activities

2020 ◽  
Vol 23 (4) ◽  
pp. 5-12
Author(s):  
Nadia A. Betti ◽  
◽  
Redha Ib. Hussain ◽  
Sahar Ab. Kadhem ◽  
Abdul Jabar Kh. Atia ◽  
...  
Keyword(s):  
Biological Activity ◽  
Mass Spectrum ◽  
Biological Activities ◽  
The Other ◽  
Synthesis And Characterization ◽  
E Coli ◽  
Ft Ir ◽  
New Compounds ◽  
Derivatives Of

New derivatives of pyrrolidine-2-one have been prepared by lactamization of -butyrolactone GBL with hydrazine hydrate (NH2NH2(80%)) to afford (1-aminopyrrolidin-2-one) which undergo many reactions to prepare the other derivatives. The prepared derivatives were determined by utilizing their FT-IR,1H-NMR and some by Mass spectrum. These derivatives were evaluated biologically against (Staphylococcus aureusand E. coli).Some of these derivatives exhibited good biological activity against one or both kind of bacteria while some exhibited no biological activity at all.

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