Biologically synthesized copper and zinc oxide nanoparticles for important biomolecules detection and antimicrobial applications

Publication date: Available online 8 November 2019Source: Materials Today CommunicationsAuthor(s): Maruthupandy Muthuchamy, Thillaichidambaram Muneeswaran, Rajivgandhi Govindan, Quero Franck, Anand Muthusamy, Song Ji-MingAbstractIn the present study, we report CuO and ZnO nanoparticles (NPs) synthesized through biological route using Camellia japonica plant leaf extract and their efficiency detection of cysteine and dihydronicotinamide adenine dinucleotide (NADH) in addition to their antimicrobial properties. Changes in absorption peak intensity in the presence of cysteine or NADH was assessed by UV-Visible spectrophotometry. The spectrometric detection limit for the cysteine and NADH was found to be 5 and 10 µM, respectively, for both CuO and ZnO NPs. Good linear relationships with R2 = 0.9727 for CuO and 0.9862 for ZnO NPs were obtained when plotting the absorbance as a function of cysteine and NADH concentrations at 290 and 301 nm, respectively. The present metal oxide (CuO and ZnO) NPs sensors were found to be useful for the detection of two biomolecules; namely cysteine and NADH. Furthermore, the CuO and ZnO NPs were found to be highly effective against gram positive (Streptococcus pneumoniae, Bacillus subtilis) and gram negative (Escherichia coli, Salmonella typhimurium) bacterial pathogens as well as fungal strains of Aspergillus flavus, Aspergillus fumigates, Aspergillus niger and Candida albicans. A minimum inhibition concentration of 100&t...
Source: Materials Today Communications - Category: Materials Science Source Type: research

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Publication date: Available online 2 December 2019Source: Journal of Molecular StructureAuthor(s): R. Rama, S. MeenakshiAbstractA novel Aliquat 336 based functionalized ionic liquid, methyltrioctylammonium naphthylacetate ([A336]+[NAA]-) have been synthesized and characterized using IR, UV, 1H NMR and Raman spectroscopy techniques. The prepared IL was tested for antimicrobial properties and chromium (VI) extraction. Anti-bacterial test was carried out towards five types of bacteria namely Staphylococcus aureus, Escherichia coli, Pseudomonas aeroginosa, Bacillus subtilis and Salmonella typhi. The antifungal test was done ou...
Source: Journal of Molecular Structure - Category: Molecular Biology Source Type: research
AbstractsThe research explores the facile synthesis of some new phenylsulfamoyl carboxylic acids, their molecular docking, antimicrobial, and antioxidant activities. The procedure involved the mild reaction of amino acids with benzenesulfonyl chloride in a medium of aqueous base. The compounds were characterized using FTIR,1H-NMR,13C-NMR, and an elemental analysis. They were tested for their antimicrobial activities against Staphylococcus aureus, Escherichia coli, Bacillus subtilis, Pseudomonas aeruginosa, Salmonella typhi, Candida albicans, and Aspergillus niger microorganisms. The antioxidant activity of the compounds we...
Source: Medicinal Chemistry Research - Category: Chemistry Source Type: research
In this study the effects against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Acinetobacterbaumannii, Streptococcus pyogenes, Proteus vulgaris, Salmonella typhi, Shigella spp., Candida albicans, Candida parapsilosis, Anopheles stephensi, Aedes aegypti, A. aegypti, A. albopictus, Culex pipiens, Trypanosoma brucei, Leishmania major, Trichomonas. Vaginalis, poliovirus type 1, coxsackie virus B, echovirus 6, West Nile Virus, herpes virus type 1, HSV-1 virus, Fusarium spp., Aspergillus flavus, Aspergillus niger, C. albicans, Alternaria alternata, Setosphaeria turcica and Magnaporthe grisea was revealed. ...
Source: Comparative immunology, microbiology and infectious diseases. - Category: Allergy & Immunology Authors: Tags: Comp Immunol Microbiol Infect Dis Source Type: research
Gulcin Tezcan1, Ekaterina V. Martynova1, Zarema E. Gilazieva1, Alan McIntyre2, Albert A. Rizvanov1 and Svetlana F. Khaiboullina1,3* 1Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia 2Centre for Cancer Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, United Kingdom 3Department of Microbiology and Immunology, University of Nevada, Reno, Reno, NV, United States Inflammation has a crucial role in protection against various pathogens. The inflammasome is an intracellular multiprotein signaling complex that is linked to pathogen sensing and...
Source: Frontiers in Pharmacology - Category: Drugs & Pharmacology Source Type: research
In this study the effects against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Acinetobacterbaumannii, Streptococcus pyogenes, Proteus vulgaris, Salmonella typhi, Shigella spp., Candida albicans, Candida parapsilosis, Anopheles stephensi, Aedes aegypti, A. aegypti, A. albopictus, Culex pipiens, Trypanosoma brucei, Leishmania major, Trichomonas. Vaginalis, poliovirus type 1, coxsackie virus B, echovirus 6, West Nile Virus, herpes virus type 1, HSV-1 virus, Fusarium spp., Aspergillus flavus, Aspergillus niger, C. albicans, Alternaria alternata, Setosphaeria turcica and Magnaporthe grisea was revealed.
Source: Comparative Immunology, Microbiology and Infectious Diseases - Category: Infectious Diseases Source Type: research
Conclusion Starter cultures are an important tool that contributes to ensure the safety of fermented meat products. Indeed, the microorganisms that constitute starter cultures may inhibit or reduce the growth of spoilage and/or pathogenic populations through mechanisms, such as production of certain metabolites or competitive exclusion. Thus, the use of starter cultures may reduce the need for chemical additives, such as nitrites and nitrates. Furthermore, the lower residual levels of nitrates and nitrites detected in fermented meat products inoculated with starter cultures are due to the ability of starters to metabolize...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Conclusion Lactobacillus pentosus was the predominant species found at industrial scale in Spanish table olives biofilms, albeit certain genotypes of L. plantarum were also detected. At genotype level, biodiversity was higher in the Spanish-style table olive biofilms than in those of directly brined olives. The multivariate analysis based on technological and probiotic data showed that the main 16 genotypes obtained could be clustered in 3 great phenotypes, with some strains with potential application as multifunctional starters (especially L. pentosus Lp13 and LpG1 genotypes). Data obtained in the present study showed th...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Abstract We used a green sol-gel synthesis method to fabricate a novel nanoporous copper aluminosilicate (CAS) material. Nanoporous CAS was characterized using X-ray powder diffraction (XRD), field emission transmission and scanning electron microscopies (FE-TEM/FE-SEM), Fourier transform infrared (FTIR) spectroscopy, and optical analyses. The CAS was also evaluated for use as a promising disinfectant for the inactivation of waterborne pathogens. The antimicrobial action and minimum inhibitory concentration (MIC) of this CAS disinfectant were determined against eight microorganisms (Escherichia coli, Salmonella en...
Source: Environmental Science and Pollution Research International - Category: Environmental Health Authors: Tags: Environ Sci Pollut Res Int Source Type: research
AbstractThe syntheses of new sulphonamide derivatives of 8,10-diazabenzo[a]phenoxazones are reported. The condensation of 4,5-diamino-6-hydroxy-2-mercaptopyrimidine and 2,3-dichloro-1,4-naphthoquinone in a basic medium gave the key functional intermediate, 11-amino-6-chloro-9-mercapto-8,10-diazabenzo[a]phenoxazin-5-one. The conversion of the later compound to its sulphonamide derivatives was achieved via nickel catalyzed cross-coupling Buchwald-Hartwig protocol. Reaction between 11-amino-6-chloro-9-mercapto-8,10-diazabenzo[a]phenoxazin-5-one and various aryl sulphonamides and sulphonyl chlorides furnished eight new mono su...
Source: Medicinal Chemistry Research - Category: Chemistry Source Type: research
Publication date: June 2018Source: Bulletin of Faculty of Pharmacy, Cairo University, Volume 56, Issue 1Author(s): Mohammad Tuhin Ali, Sheikh Tanzina Haque, Md. Lutful Kabir, Sohel Rana, Md. Enamul HaqueAbstractPetroleum ether, ethyl acetate and methanol extracts of the stem bark of Albizia lebbeck and Acacia nilotica was investigated for antimicrobial, antioxidant and cytotoxicity assay. The powdered stem bark was extracted successively with petroleum ether, ethyl acetate and methanol solution. The crude extracts were subjected to antimicrobial, antioxidant and cytotoxicity assay by using disc diffusion method, DPPH and h...
Source: Bulletin of Faculty of Pharmacy, Cairo University - Category: Drugs & Pharmacology Source Type: research
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