Comptes Rendus Chimie

Maryam Zandi

Ali Reza Sardarian

Eco-friendly and efficient multi-component method for preparation of 1-amidoalkyl-2-naphthols under solvent-free conditions by dodecylphosphonic acid (DPA)

Mohamed Abdel Salam

Ghalia Al-Zhrani

Samia A. Kosa

Simultaneous removal of copper(II), lead(II), zinc(II) and cadmium(II) from aqueous solutions by multi-walled carbon nanotubes

Magdalena Maciejewska

Marian Zaborski

Alicja Krzywania-Kaliszewska

Mineral oxides and layered minerals in combination with itaconic acid as coagents for peroxide crosslinking of hydrogenated acrylonitrile-butadiene elastomer

Saida Mnasri

Néji Besbes

Najoua Frini-Srasra

Ezzeddine Srasra

Étude de l’activité catalytique des argiles pontées aluminium, zirconium et cérium dans la synthèse du 2,2-diméthyl-1,3-dioxolane

COMPTES RENDUS
CHIMIE 
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COMPTES RENDUS
CHIMIE 


Editorial Board

Masoud Mokhtary

Faranak Najafizadeh

Polyvinylpolypyrrolidone-bound boron trifluoride (PVPP-BF3); a mild and efficient catalyst for synthesis of 4-metyl coumarins via the Pechmann reaction

Bharti Khungar

Madharam Sudershan Rao

Kasiviswanadharaju Pericherla

Pankaj Nehra

Navin Jain

Jitendra Panwar

Anil Kumar

Supporting Information
Synthesis, characterization and antimicrobial studies of novel ionic liquid tagged Schiff bases
Bharti Khungar,a,* M. Sudershan Rao,a Kasiviswanadharaju Pericherla,a Pankaj Nehra,a Navin Jain,b Jitendra Panwarb and Anil Kumara,*
aDepartment of Chemistry, Birla Institute of Technology and Science, Pilani-333 031, Rajasthan, India
bDepartment of Biological Sciences, Birla Institute of Technology and Science, Pilani-333 031, Rajasthan, India

Contents
1.	In vitro antibacterial assay 
2.	In vitro antifungal assay 
3.	1H and 13C NMR spectra of compound 4a-f
4.	References

1	In vitro antibacterial assay
Bactericidal assay of the synthesized compounds (1-6) was tested against common food pathogenic bacteria. The bacterial strains included Gram-positive Bacillus cereus (MTCC 430), Staphylococcus aureus (MTCC 96), Pseudomonas putida (MTCC 102) and Gram-negative Escherichia coli (MTCC 1652), Klebsiella pneumoniae (MTCC 432) and Salmonella typhimurium (MTCC 98). All the cultures were purchased from Microbial Type Culture Collection (MTCC), IMTECH, India and revived as per suggested guidelines using standard microbiological methods. The cultures were maintained and sub-cultured on nutrient agar medium (HiMedia, India).
In vitro antibacterial activities were studied using the disc diffusion method [1] using semi-solid agar medium in Petri dishes at 128 g mL-1 concentration for all the compounds with DMSO as a solvent. For this purpose, Mueller-Hilton (HiMedia, India) agar medium was prepared and sterilized by autoclaving at 121 C at 15 psi for 15 min. Medium was poured into sterile Petri dishes (90 mm diameter) under aseptic conditions using laminar air ﬂow chamber. After the solidification of medium, the suspension of the test organism (106 cfu mL-1) was swabbed onto the individual agar media plates using a sterile glass spreader. A sterile disc (9 mm diameter) impregnated with compound was placed over media surface and the plates were incubated at 37 C for 18-24 h under dark conditions. Negative controls (DMSO) were included to confirm that the solvent had no effect on the antibacterial activity. Positive controls (chloramphenicol, 0.03 mg mL-1) were included to confirm the susceptibility of test organisms. Three replicates were maintained for each compound and their mean values were calculated.
2	In vitro antifungal assay
In vitro antifungal activity of the synthesized compounds was determined by standard agar well diffusion method [2] at 128 g mL-1 concentration for all the compounds. Fungal strains used were Aspergillus niger (MTCC 282), Aspergillus flavus (MTCC 6674), Fusarium oxysporum (MTCC 6045), Colletotrichum acutatum (MTCC 2247) and were procured from MTCC, IMTECH, India. Autoclaved Potato Dextrose Agar (PDA) medium (Hi-media, India) was poured into sterile Petri dishes (90 mm diameter) under aseptic conditions in a laminar air flow chamber. Medium was allowed to solidify and then inoculated with 100 l of 3 days old axenic fungal broth culture. After inoculation, wells of 9 mm diameter were prepared using sterile metallic borer. 100 l of compound solution was poured in respective well and the plates were incubated at 28 C for 4 days under dark conditions. DMSO and carbendazim (Methyl 1H-benzimidazol-2-ylcarbamate, a standard broad spectrum antifungal antibiotic) were used as negative and positive controls, respectively. Mean diameter of zone of inhibition was measured to determine the magnitude of antifungal activity. The experiment was performed in triplicates.


3	1H and 13C NMR spectra of compound 4a-f





















4.	References
1.	Clinical and laboratory standards institute (NCCLS) 2006, Performance standards for antimicrobial disk susceptibility tests; approved standard. 9th ed. M2-A9, Wayne, PA, USA. 
2.	Clinical and laboratory standards institute (NCCLS) 2006, Methods for dilution antimicrobial susceptibility tests for bacteria that grow aerobically; approved standard. 7th ed. M7-A7, Wayne, PA, USA. 
3.	Ana Espinel-Ingroff and Emilia Cantón. 2007. Antifungal Susceptibility Testing of Filamentous Fungi. In: Antimicrobial Susceptibility Testing Protocols. (Eds) Richard Schwalbe, Lynn Steele-Moore, Avery C. Goodwin. CRC Press, Taylor & Francis Group pp. 209-24.






























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Synthesis, characterization and microbiocidal studies of novel ionic liquid tagged Schiff bases

Saeed Rayati

Fatemeh Ashouri

Pronounced catalytic activity of oxo-vanadium(IV) Schiff base complexes in the oxidation of cyclooctene and styrene by tert-butyl hydroperoxide

Stéphane Moreau

Vanessa Desplat

Solène Savrimoutou

Stéphane Massip

Gérard Déléris

Jean Guillon

Crystal structure of [2]benzopyrano[3,4-b]quinoxalin-5-one through spontaneous air oxidation rearrangement of 6-Chloro-isoindolo[2,1-a]quinoxaline

S.Z. Mohamed Shamshuddin

M. Shyam Sundar

N. Thimmaraju

Venkatesh

G. Vatsalya

M. Senthilkumar

Synthesis, characterization and catalytic activity studies on cordierite honeycomb coated with ZrO2 based solid super acids

Not a member yet

Eco-friendly and efficient multi-component method for preparation of 1-amidoalkyl-2-naphthols under solvent-free conditions by dodecylphosphonic acid (DPA)

Simultaneous removal of copper(II), lead(II), zinc(II) and cadmium(II) from aqueous solutions by multi-walled carbon nanotubes

Mineral oxides and layered minerals in combination with itaconic acid as coagents for peroxide crosslinking of hydrogenated acrylonitrile-butadiene elastomer

Étude de l’activité catalytique des argiles pontées aluminium, zirconium et cérium dans la synthèse du 2,2-diméthyl-1,3-dioxolane

Editorial Board

Polyvinylpolypyrrolidone-bound boron trifluoride (PVPP-BF<sub>3</sub>); a mild and efficient catalyst for synthesis of 4-metyl coumarins via the Pechmann reaction

Synthesis, characterization and microbiocidal studies of novel ionic liquid tagged Schiff bases

Pronounced catalytic activity of oxo-vanadium(IV) Schiff base complexes in the oxidation of cyclooctene and styrene by <i>tert</i>-butyl hydroperoxide

Crystal structure of [2]benzopyrano[3,4-<i>b</i>]quinoxalin-5-one through spontaneous air oxidation rearrangement of 6-Chloro-isoindolo[2,1-<i>a</i>]quinoxaline

Synthesis, characterization and catalytic activity studies on cordierite honeycomb coated with ZrO<sub>2</sub> based solid super acids

2,199

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