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aqueous solutions
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- Author:
- Tanur Sinha; M. Ahmaruzzaman
- Source:
- RSC advances 2015 v.6 no.1 pp. 44-56
- ISSN:
- 2046-2069
- Subject:
- Allium cepa; Escherichia coli; Fourier transform infrared spectroscopy; X-ray diffraction; aminophenols; animal pathogenic bacteria; antibiotics; aqueous solutions; carcinogenicity; catalytic activity; energy-dispersive X-ray analysis; fluorescence; liquid chromatography; mass spectrometry; methylene blue; nanogold; nanoparticles; p-nitrophenol; photoluminescence; remediation; scanning electron microscopy; sodium borohydride; temperature; toxic substances; transmission electron microscopy; ultraviolet-visible spectroscopy; wastes
- Abstract:
- ... A simple, novel, green, economic, environment friendly and convenient one-pot fabrication of luminescent gold nanoclusters, incorporating an aqueous extract of the peels of Allium cepa L., otherwise considered as a common household waste material, has been described. The optimal experimental conditions including concentrations of Allium cepa L. extract and different reaction temperatures have been ...
- DOI:
- 10.1039/c5ra21495e
- https://doi.org/10.1039/c5ra21495e
- Author:
- Xiurong Si; Xiangchun Quan; Yachuan Wu
- Source:
- Applied microbiology and biotechnology 2015 v.99 no.24 pp. 10861-10870
- ISSN:
- 0175-7598
- Subject:
- Bacillus subtilis; DNA; Escherichia coli; Pseudomonas aeruginosa; antibiotics; aqueous solutions; bacteria; bacterial adhesion; biofilm; coatings; electrolytes; encapsulation; exopolysaccharides; glass; growth retardation; leaching; mixed culture; polyacrylic acid; risk; wastewater; wastewater treatment; water purification
- Abstract:
- ... Norspermidine is a potent and non-bactericidal small-molecule inhibitor of biofilm growth. In this study, impacts of norspermidine on biofilm control and existing biofilm dispersal by a mixed culture from wastewater treatment systems were investigated. A surface-mediated releasing approach for prevention of bacterial biofilm formation was established via encapsulating norspermidine into polyelectr ...
- DOI:
- 10.1007/s00253-015-6943-0
- https://doi.org/10.1007/s00253-015-6943-0
- Author:
- Xinpeng Li; Xinkai Xue; Richard M. Pashley
- Source:
- Colloids and surfaces 2015 v.135 pp. 811-816
- ISSN:
- 0927-7765
- Subject:
- Escherichia coli; adsorption; anions; aqueous solutions; calcium; calcium chloride; cationic surfactants; cations; cell membranes; colloids; ionization; light scattering; magnesium sulfate; models; pH; phosphatidylserines; sodium chloride; water treatment; zeta potential; zinc sulfate
- Abstract:
- ... In this study, the Escherichia coli (E. coli) strain ATCC 11775 was studied to determine its surface charging properties in a range of different aqueous salt solutions, with the aim of evaluating its potential as a monitor organism for water treatment. Zeta potential measurements were carried out in various solutions containing: NaCl, CaCl₂, MgSO₄, ZnSO₄ and C₁₄TAB, at different pH values and conc ...
- DOI:
- 10.1016/j.colsurfb.2015.08.048
- https://doi.org/10.1016/j.colsurfb.2015.08.048
- Author:
- Ankur Gupta; Chandrajit Balomajumder
- Source:
- Groundwater for sustainable development 2015 v.1 no.1-2 pp. 12-22
- ISSN:
- 2352-801X
- Subject:
- Escherichia coli; adsorbents; adsorption; aqueous solutions; batch systems; bioaccumulation; biofilm; biomass; biosorbents; biosorption; chromium; groundwater; groundwater contamination; models; pH; pollutants; sorption isotherms; sustainable development; tea; temperature; toxicity; wastes
- Abstract:
- ... The present study deals with simultaneous biosorption and bioaccumulation (SBB) batch system for the removal of hexavalent chromium Cr(VI) from aqueous solution using biofilm of Escherichia coli immobilized onto the surface of WTB. For comparison purpose the same study was carried out without bacterial biofilm using WTB as biosorbent. The effect of process parameters like pH, adsorbent dose, conta ...
- DOI:
- 10.1016/j.gsd.2016.01.001
- https://doi.org/10.1016/j.gsd.2016.01.001
- Author:
- Saini Seema; Belgacem Naceur; Mendes Joana; Elegir Graziano; Bras Julien
- Source:
- ACS Applied Materials & Interfaces 2015 v.7 no.32 pp. 18076-18085
- ISSN:
- 1944-8252
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Gram-positive bacteria; Staphylococcus aureus; X-ray photoelectron spectroscopy; antibacterial properties; aqueous solutions; cellulose microfibrils; contact angle; leaching; penicillins
- Abstract:
- ... Contact active surfaces are an innovative tool for developing antibacterial products. Here, the microfibrillated cellulose (MFC) surface was modified with the β-lactam antibiotic benzyl penicillin in aqueous medium to prepare antimicrobial films. Penicillin was grafted on the MFC surface using a suspension of these nanofilaments or directly on films. Films prepared from the penicillin-modified MFC ...
- DOI:
- 10.1021/acsami.5b04938
- https://doi.org/10.1021/acsami.5b04938
- Author:
- Jae Young Cho; Byung Yeoup Chung; Seon Ah Hwang
- Source:
- Environmental science and pollution research international 2015 v.22 no.13 pp. 9637-9645
- ISSN:
- 0944-1344
- Subject:
- chloramphenicol; aqueous solutions; wastewater treatment; carbon; industrial effluents; Bacillus subtilis; anti-infective properties; toxicity; irradiation; Pseudomonas putida; Escherichia coli
- Abstract:
- ... Electron beam irradiation has shown potential as an alternative process for the treatment of industrial effluents that contain toxic organic chemicals. This study investigated the effectiveness of electron beam in degrading chloramphenicol (CAP) in aqueous solution. The degradation efficiency was 32.4 % at 1 kGy, 86.9 % at 5 kGy, and 100 % at 10 kGy. The total organic carbon (TOC) of CAP in aqueou ...
- DOI:
- 10.1007/s11356-015-4123-5
- https://doi.org/10.1007/s11356-015-4123-5
- Author:
- D. Zaharie-Butucel; J. Papp; C. Leordean; S. D. Anghel
- Source:
- RSC advances 2015 v.5 no.119 pp. 98325-98334
- ISSN:
- 2046-2069
- Subject:
- Escherichia coli; Raman spectroscopy; X-ray photoelectron spectroscopy; antibacterial properties; aqueous solutions; argon (noble gases); atmospheric pressure; carbon; comparative study; gases; helium; methylene blue; transmission electron microscopy
- Abstract:
- ... This work is a comparative study on the synthesis of carbonaceous structures with different ordering, aided by an atmospheric pressure plasma in contact with methylene blue aqueous solutions, by utilizing two different inert plasma gases, argon and helium respectively. The study follows the diagnosis of the two plasmas by optical emission spectroscopy, their different degradation effects on methyl ...
- DOI:
- 10.1039/c5ra17779k
- https://doi.org/10.1039/c5ra17779k
- Author:
- Vinod Vellora Thekkae Padil; Chandra Senan; Miroslav Cernik
- Source:
- Journal of agricultural and food chemistry 2015 v.63 no.14 pp. 3757-3765
- ISSN:
- 0021-8561
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Pseudomonas aeruginosa; Staphylococcus aureus; Sterculia urens; alkali treatment; antibacterial properties; antibiotics; aqueous solutions; differential scanning calorimetry; gel chromatography; light scattering; nuclear magnetic resonance spectroscopy; scanning electron microscopy; solubilization; surface tension; thermogravimetry
- Abstract:
- ... Esterifications of the tree-based gum, gum karaya (GK), using dodecenylsuccinic anhydride (DDSA) were carried out in aqueous solutions. GK was deacetylated using alkali treatment to obtain deacetylated gum karaya (DGK). The DGK and its DDSA derivative were characterized using gel permeation chromatography/multiangle laser light scattering (GPC/MALLS), attenuated total reflectance–Fourier transform ...
- DOI:
- 10.1021/jf505783e
- https://doi.org/10.1021/jf505783e
- Author:
- Pradip K. Gogoi; Tahshina Begum; Bitupon Borthakur; Gitashree Das; Utpal Bora; Atul Kumar
- Source:
- National Academy science letters 2015 v.38 no.3 pp. 231-234
- ISSN:
- 0250-541X
- Subject:
- Escherichia coli; X-ray diffraction; alcohols; animal pathogens; antibacterial properties; aqueous solutions; catalysts; catalytic activity; leaf extracts; montmorillonite; nanosilver; oxidation; reducing agents; scanning electron microscopy; silver nitrate; ultraviolet-visible spectroscopy
- Abstract:
- ... Silver nanoparticles (AgNPs) of homogeneous size distribution were rapidly synthesized by treating leaf extract of Phlogacanthus thyrsiformis, as reducing agent with aqueous solution of AgNO₃, employing a simple, eco-friendly and green synthetic technique. The formed AgNPs were characterized using UV–Vis absorption spectroscopy, SEM and XRD pattern. These AgNPs showed good antibacterial activity a ...
- DOI:
- 10.1007/s40009-014-0328-2
- https://doi.org/10.1007/s40009-014-0328-2
- Author:
- María Eugenia Vaquero; Jorge Barriuso; Francisco Javier Medrano; Alicia Prieto; María Jesús Martínez
- Source:
- Journal of bioscience and bioengineering 2015 v.120 no.6 pp. 637-643
- ISSN:
- 1389-1723
- Subject:
- Komagataella pastoris; Ophiostoma piceae; catalytic activity; genetically modified organisms; aqueous solutions; recombinant proteins; carbohydrates; amino acids; heterologous gene expression; Escherichia coli; biocatalysts; hosts; yeasts; triacylglycerols; hydrolysis; solubility; enzyme activity; sterol esterase; glycosylation; sterol esters; Saccharomyces cerevisiae; bacteria
- Abstract:
- ... Ophiostoma piceae secretes a versatile sterol-esterase (OPE) that shows high efficiency in both hydrolysis and synthesis of triglycerides and sterol esters. This enzyme produces aggregates in aqueous solutions, but the recombinant protein, expressed in Komagataella (synonym Pichia) pastoris, showed higher catalytic efficiency because of its higher solubility. This fact owes to a modification in th ...
- DOI:
- 10.1016/j.jbiosc.2015.04.005
- https://doi.org/10.1016/j.jbiosc.2015.04.005
- Author:
- Mahesh Kumar Joshi; Hem Raj Pant; Nina Liao; Jun Hee Kim; Han Joo Kim; Chan Hee Park; Cheol Sang Kim
- Source:
- Journal of colloid and interface science 2015 v.453 pp. 159-168
- ISSN:
- 0021-9797
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; X-ray diffraction; adsorbents; adsorption; antimicrobial properties; aqueous solutions; energy-dispersive X-ray analysis; ferrous chloride; fly ash; hot water treatment; industrial byproducts; iron oxides; lead; magnetic materials; metal ions; nanoparticles; nanosilver; pH; particle size; photoluminescence; protocols; remediation; scanning electron microscopy; silver nitrate; surface area; transmission electron microscopy; water purification
- Abstract:
- ... In this study, a fly ash based composite, Ag–iron oxide/fly ash, was synthesized via a facile one-pot hydrothermal process using fly ash, ferrous chloride, and silver nitrate as precursors. Field emission scanning electron microscopy (FE-SEM), EDX, transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infra-red spectroscopy (FTIR), Photoluminescence (PL) and Brunauer–E ...
- DOI:
- 10.1016/j.jcis.2015.04.044
- https://doi.org/10.1016/j.jcis.2015.04.044
- Author:
- Anna Zhu; Harris K. Liu; Feng Long; Erzheng Su; Alexander M. Klibanov
- Source:
- Applied biochemistry and biotechnology 2015 v.175 no.2 pp. 666-676
- ISSN:
- 0273-2289
- Subject:
- Escherichia coli; Staphylococcus aureus; aqueous solutions; bacteria; biochemistry; biotechnology; carbon nanotubes; electric current; electric field; mixing; polymers; sodium chloride; transmission electron microscopy
- Abstract:
- ... Uniform conductive composite membranes were prepared using a phase inversion method by blending carboxyl-functionalized multi-walled carbon nanotubes (CNTs) with a polysulfone polymer. At 6 % of the embedded CNTs, the membrane pore size measured by transmission electron microscopy (TEM) was approximately 50 nm. Electric current in the presence of the composite membranes markedly inactivated the mo ...
- DOI:
- 10.1007/s12010-014-1318-z
- https://doi.org/10.1007/s12010-014-1318-z
- Author:
- Sidney J. Beech; Sacha Noimark; Kristopher Page; Nuruzzaman Noor; Elaine Allan; Ivan P. Parkin
- Source:
- RSC advances 2015 v.5 no.33 pp. 26364-26375
- ISSN:
- 2046-2069
- Subject:
- Escherichia coli; Staphylococcus aureus; X-ray photoelectron spectroscopy; aqueous solutions; composite polymers; emulsions; gentian violet; infrared spectroscopy; leaching; methylene blue; nanogold; photosensitivity; white light
- Abstract:
- ... Crystal violet, methylene blue, safranin O and 2 nm gold nanoparticles were incorporated into a copolymer emulsion paint and three separate paint systems were prepared; a three-dye system (crystal violet, methylene blue, safranin O and 2 nm gold nanoparticles), a two-dye system (crystal violet, methylene blue and 2 nm gold nanoparticles) and a one dye system (safranin O and 2 nm gold nanoparticles ...
- DOI:
- 10.1039/c5ra01673h
- https://doi.org/10.1039/c5ra01673h
- Author:
- Chen Zeyou; Zhang Yingjie; Gao Yanzheng; Boyd Stephen A.; Zhu Dongqiang; Li Hui
- Source:
- Environmental Science & Technology 2015 v.49 no.18 pp. 10903-10910
- ISSN:
- 1520-5851
- Subject:
- Escherichia coli; adsorption; agricultural land; animal manures; antibiotic resistance; aqueous solutions; bacteria; bioavailability; dissolved organic matter; genes; green fluorescent protein; humic acids; tetracycline
- Abstract:
- ... Complexation of tetracycline with dissolved organic matter (DOM) in aqueous solution could alter the bioavailability of tetracycline to bacteria, thereby alleviating selective pressure for development of antibiotic resistance. In this study, an Escherichia coli whole-cell bioreporter construct with antibiotic resistance genes coupled to green fluorescence protein was exposed to tetracycline in the ...
- DOI:
- 10.1021/acs.est.5b02158
- https://doi.org/10.1021/acs.est.5b02158
- Author:
- Sandeep K. Mishra; J.M.F. Ferreira; S. Kannan
- Source:
- Carbohydrate polymers 2015 v.121 pp. 37-48
- ISSN:
- 0144-8617
- Subject:
- Escherichia coli; Staphylococcus aureus; antibacterial properties; aqueous solutions; chitosan; coatings; evaporation; functional properties; ions; nanocomposites; nanosilver; polyvinyl alcohol; silver; silver nitrate; solvents; titanium
- Abstract:
- ... Bionanocomposite coatings with antimicrobial activity comprising polyvinyl alcohol (PVA)-capped silver nanoparticles embedded in chitosan (CS) matrix were developed by a green soft chemistry synthesis route. Colloidal sols of PVA-capped silver nanoparticles (AgNPs) were synthesized by microwave irradiating an aqueous solution comprising silver nitrate and PVA. The bionanocomposites were prepared b ...
- DOI:
- 10.1016/j.carbpol.2014.12.027
- https://doi.org/10.1016/j.carbpol.2014.12.027
- Author:
- Liu Feng; Wang Lei; Wang Hongwei; Yuan Lin; Li Jingwen; Brash John Law; Chen Hong
- Source:
- ACS Applied Materials & Interfaces 2015 v.7 no.6 pp. 3717-3724
- ISSN:
- 1944-8252
- Subject:
- Escherichia coli; aqueous solutions; binding sites; bioactive properties; biocatalysis; cysteine; drugs; gold; immobilized enzymes; inorganic pyrophosphatase; models; mutants; nanogold; nanoparticles; protein content; site-directed mutagenesis
- Abstract:
- ... The key property of protein–nanoparticle conjugates is the bioactivity of the protein. The ability to accurately modulate the activity of protein on the nanoparticles at the interfaces is important in many applications. In the work reported here, modulation of the activity of protein–gold nanoparticle (AuNP) conjugates by specifically orienting the protein and by varying the surface density of the ...
- DOI:
- 10.1021/am5084545
- https://doi.org/10.1021/am5084545
17. Synthesis and characterization of antibacterial carboxymethyl cellulose/ZnO nanocomposite hydrogels
- Author:
- Mehdi Yadollahi; Iman Gholamali; Hassan Namazi; Mohammad Aghazadeh
- Source:
- International journal of biological macromolecules 2015 v.74 pp. 136-141
- ISSN:
- 0141-8130
- Subject:
- Escherichia coli; Staphylococcus aureus; X-ray diffraction; antibacterial properties; aqueous solutions; bacteria; carboxymethylcellulose; hydrocolloids; nanocomposites; nanoparticles; pH; scanning electron microscopy; spectroscopy; zinc oxide
- Abstract:
- ... In this study, carboxymethyl cellulose/ZnO nanocomposite hydrogels have been synthesized through the in situ formation of ZnO nanoparticles within swollen carboxymethyl cellulose hydrogels. The formation of ZnO nanoparticles in the hydrogels was confirmed using X-ray diffraction, UV–vis spectroscopy and scanning electron microscopy (SEM) studies. SEM micrographs revealed the formation of ZnO nanop ...
- DOI:
- 10.1016/j.ijbiomac.2014.11.032
- https://doi.org/10.1016/j.ijbiomac.2014.11.032
- Author:
- Sadhucharan Mallick; Pallab Sanpui; Siddhartha Sankar Ghosh; Arun Chattopadhyay; Anumita Paul
- Source:
- RSC advances 2015 v.5 no.16 pp. 12268-12276
- ISSN:
- 2046-2069
- Subject:
- Bacillus cereus; Escherichia coli; antibacterial properties; aqueous solutions; bacteria; cell membranes; cell walls; chitosan; copper; copper nanoparticles; electrostatic interactions; flow cytometry; membrane proteins; nanosilver; particle size; silver; silver nitrate; synergism; turbidity
- Abstract:
- ... A simple two-step seed-mediated method has been developed to synthesize chitosan (CS)-supported core–shell metal nanoparticles (NPs) in aqueous solution. CS-supported copper NPs (CS–Cu NPs), when treated with silver nitrate (AgNO₃) solution, resulted in Ag shells on Cu NP cores in the composite. The Cu@Ag NPs in the CS composite were characterized and found to be spherical in shape with an average ...
- DOI:
- 10.1039/c4ra12770f
- https://doi.org/10.1039/c4ra12770f
- Author:
- Navin Jain; Parvej Alam; Inamur Rahaman Laskar; Jitendra Panwar
- Source:
- RSC advances 2015 v.5 no.76 pp. 61983-61988
- ISSN:
- 2046-2069
- Subject:
- DNA; Escherichia coli; Gram-negative bacteria; antibacterial properties; aqueous solutions; bacterial growth; binding capacity; cell death; drinking water; iridium; microbial detection; microscopy; minimum inhibitory concentration; monitoring; phosphorescence; seawater; surface water
- Abstract:
- ... The present study attempts to develop a sensitive method to utilize ‘aggregation induced phosphorescence (AIP)’ active iridium(iii) complexes as potential agents for “integrated” sensing and inhibition of bacterial growth in aqueous systems. The utilization of iridium(iii) complexes for microbial detection in bodies of water has been demonstrated using Escherichia coli (E. coli) as a representativ ...
- DOI:
- 10.1039/c5ra10161a
- https://doi.org/10.1039/c5ra10161a
- Author:
- Hou-Yong Yu; Guo-Yin Chen; Yi-Bo Wang; Ju-Ming Yao
- Source:
- Cellulose 2015 v.22 no.1 pp. 261-273
- ISSN:
- 0969-0239
- Subject:
- Escherichia coli; Staphylococcus aureus; X-ray diffraction; acid hydrolysis; antibacterial properties; aqueous solutions; cellulose; citric acid; hydrochloric acid; irradiation; methylene blue; microstructure; nanocrystals; nanoparticles; nitrates; photolysis; scanning electron microscopy; spectroscopy; temperature; thermal degradation; thermal stability; thermogravimetry; ultraviolet radiation; zinc; zinc oxide
- Abstract:
- ... Cellulose nanocrystal/zinc oxide (CNC/ZnO) nanohybrids were prepared through citric acid/hydrochloric acid hydrolysis of commercial microcrystalline cellulose (MCC), and simple precipitation with zinc nitrate aqueous solution [Zn(NO₃)₂·6H₂O] via one-pot green synthesis, in which preparation and modification of CNCs were performed simultaneously and the obtained CNCs with carboxyl groups could act ...
- DOI:
- 10.1007/s10570-014-0491-0
- https://doi.org/10.1007/s10570-014-0491-0
- Author:
- Tahseen Kamal; Mazhar Ul-Islam; Sher Bahadar Khan; Abdullah M. Asiri
- Source:
- International journal of biological macromolecules 2015 v.81 pp. 584-590
- ISSN:
- 0141-8130
- Subject:
- Escherichia coli; X-ray diffraction; adsorption; antibacterial properties; aqueous solutions; azo dyes; cellulose; chitosan; coatings; dissociation; methyl orange; pH; photocatalysts; photolysis; scanning electron microscopy; ultraviolet radiation; zinc oxide
- Abstract:
- ... Pure chitosan and its zinc oxide composite coatings were applied on microfibriller cellulose mat (MCM) to prepare chitosan coated microfibriller cellulose (Chi-MCM) and zinc oxide/chitosan coated microfibriller cellulose (ZnO/Chi-MCM), respectively. X-ray diffraction (XRD), and scanning electron microscopy (SEM), were used to characterize the samples in this study. SEM images showed that dense chi ...
- DOI:
- 10.1016/j.ijbiomac.2015.08.060
- https://doi.org/10.1016/j.ijbiomac.2015.08.060
- Author:
- Omprakash Nacham; Kevin D. Clark; Jared L. Anderson
- Source:
- Analytical methods 2015 v.7 no.17 pp. 7202-7207
- ISSN:
- 1759-9679
- Subject:
- Escherichia coli; agarose; analytical methods; aqueous solutions; bacteria; coatings; gels; genes; ionic liquids; plasmids; polyacrylic acid; polymerase chain reaction; polymerization; sequence analysis; solid phase microextraction; sorbents
- Abstract:
- ... The extraction and preconcentration of DNA is a critical step in the analysis of microorganisms. In this study, a polymeric ionic liquid (PIL) sorbent coating was applied for the preconcentration of plasmid DNA (pDNA) from bacterial cells using solid-phase microextraction (SPME). PIL-based SPME devices were prepared by ultraviolet photoinitiated polymerization of a dicationic ionic liquid (IL)-bas ...
- DOI:
- 10.1039/c5ay00532a
- https://doi.org/10.1039/c5ay00532a
23. Antibacterial Activity and Biosensing of PVA-Lysozyme Microbubbles Formed by Pressurized Gyration
- Author:
- Mahalingam Suntharavathanan; Xu Zewen; Edirisinghe Mohan
- Source:
- Langmuir 2015 v.31 no.36 pp. 9771-9780
- ISSN:
- 1520-5827
- Subject:
- Escherichia coli; alkaline phosphatase; antibacterial properties; aqueous solutions; fluorescence microscopy; microbubbles; nanogold; paraoxon
- Abstract:
- ... In this work, the biosensing and antibacterial capabilities of PVA-lysozyme microbubbles have been explored. Gas-filled PVA-lysozyme microbubbles with and without gold nanoparticles in the diameter range of 10 to 250 μm were produced using a single-step pressurized gyration process. Fluorescence microscopy showed the integration of gold nanoparticles on the shell of the microbubbles. Microbubbles ...
- DOI:
- 10.1021/acs.langmuir.5b02005
- https://doi.org/10.1021/acs.langmuir.5b02005
24. Antibacterial hybrid cellulose–graphene oxide nanocomposite immobilized with silver nanoparticles
- Author:
- Soon Wei Chook; Chin Hua Chia; Sarani Zakaria; Mohd Khan Ayob; Nay Ming Huang; Hui Min Neoh; Rahman Jamal
- Source:
- RSC advances 2015 v.5 no.33 pp. 26263-26268
- ISSN:
- 2046-2069
- Subject:
- Escherichia coli; Staphylococcus aureus; ammonia; antibacterial properties; aqueous solutions; asymmetric membranes; cellulose; electrostatic interactions; graphene oxide; ions; leaching; moieties; nanocomposites; nanosilver; silver
- Abstract:
- ... A hybrid nanocomposite cellulose membrane containing graphene oxide and silver nanoparticles was produced via a two step synthesis method. First, regenerated cellulose membranes containing different percentages of graphene oxide (GO) were produced by coagulating the mixture in an acid coagulating bath. Afterward, silver nanoparticles (AgNPs) were in situ synthesized onto the membranes using the mo ...
- DOI:
- 10.1039/c5ra01897h
- https://doi.org/10.1039/c5ra01897h
- Author:
- Jorge Padrão; Raul Machado; Margarida Casal; Senentxu Lanceros-Méndez; Ligia R. Rodrigues; Fernando Dourado; Vitor Sencadas
- Source:
- International journal of biological macromolecules 2015 v.81 pp. 608-614
- ISSN:
- 0141-8130
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; adsorption; anti-infective agents; antibacterial properties; antibiotic resistance; aqueous solutions; biocompatible materials; cattle; crosslinking; fish; food packaging; gelatin; glutaraldehyde; lactoferrin; medical equipment; microorganisms; nanofibers; vapors
- Abstract:
- ... The increase of antibiotic resistant microorganisms urged the development and synthesis of novel antimicrobial biomaterials to be employed in a broad range of applications, ranging from food packaging to medical devices. This work describes the production and characterization of a protein-based electrospun fibrous membranes bearing antimicrobial properties. Its composition is exclusively comprised ...
- DOI:
- 10.1016/j.ijbiomac.2015.08.047
- https://doi.org/10.1016/j.ijbiomac.2015.08.047
- Author:
- Keisuke Nakamura; Kirika Ishiyama; Hong Sheng; Hiroyo Ikai; Taro Kanno; Yoshimi Niwano
- Source:
- Journal of agricultural and food chemistry 2015 v.63 no.35 pp. 7707-7713
- ISSN:
- 0021-8561
- Subject:
- Actinobacillus actinomycetemcomitans; DNA; Enterococcus faecalis; Escherichia coli; Gram-negative bacteria; Gram-positive bacteria; Pseudomonas aeruginosa; Staphylococcus aureus; Streptococcus mutans; antibacterial properties; aqueous solutions; blue light; caffeic acid; chlorogenic acid; disinfection; epigallocatechin; gallic acid; irradiation; light intensity; mechanism of action; proanthocyanidins; wavelengths
- Abstract:
- ... The bactericidal effect of various types of photoirradiated polyphenols against Gram-positive and -negative bacteria was evaluated in relation to the mode of action. Gram-positive bacteria (Enterococcus faecalis, Staphylococcus aureus, and Streptococcus mutans) and Gram-negative bacteria (Aggregatibacter actinomycetemcomitans, Escherichia coli, and Pseudomonas aeruginosa) suspended in a 1 mg/mL po ...
- DOI:
- 10.1021/jf5058588
- https://doi.org/10.1021/jf5058588
- Author:
- Margarida M. Fernandes; Diana Rivera; Antonio Francesko; Rasa Šližytė; Revilija Mozuraitytė; Katariina Rommi; Raija Lantto; Tzanko Tzanov
- Source:
- Process Biochemistry 2015 v.50 pp. 1843-1851
- ISSN:
- 1359-5113
- Subject:
- Escherichia coli; Staphylococcus aureus; antibacterial properties; antioxidant activity; aqueous solutions; cosmetics; fibroblasts; fish; fish feeds; fish processing plants; fish protein hydrolysate; fish waste; fisheries; ingredients; microbial contamination; nanospheres; odors; raw fish; raw materials; tea; trees; trypsin
- Abstract:
- ... Salmon backbones, co-streams of salmon processing industry, were transformed into stable, odour-free ingredients for cosmetics. First, the backbones were hydrolysed using commercial proteases (Bromelain+Papain, Trypsin, Corolase® 7089 and Protamex®) in order to accomplish the release of fish protein hydrolysates (FPH), which showed antioxidant activity and aptitude to inhibit skin-degrading and in ...
- DOI:
- 10.1016/j.procbio.2015.08.001
- https://doi.org/10.1016/j.procbio.2015.08.001
- Author:
- K. V. Arivizhivendhan; R. Boopathy; P. Maharaja; R. Regina Mary; G. Sekaran
- Source:
- RSC advances 2015 v.5 no.84 pp. 68621-68631
- ISSN:
- 2046-2069
- Subject:
- Bacillus cereus; Escherichia coli; aqueous solutions; bacteria; cell membranes; cellulose; disinfection; drinking water; fluorescence microscopy; human health; ions; nucleic acids; pathogens; polyacrylamide gel electrophoresis; purification methods; regrowth; ultraviolet-visible spectroscopy; virulent strains
- Abstract:
- ... The increase in concern over safe water for human consumption demands disinfection of water. Conventional chemical disinfection methods release counter ions into the treated water and they impair human health significantly. The present investigation was focused on the disinfection of pathogenic bacteria via a bio-disinfection route using a prodigiosin-impregnated cellulose column reactor (PICCR). ...
- DOI:
- 10.1039/c5ra09172a
- https://doi.org/10.1039/c5ra09172a
- Author:
- Rahisuddin; Shaeel Ahmed AL-Thabaiti; Zaheer Khan; Nikhat Manzoor
- Source:
- Bioprocess and biosystems engineering 2015 v.38 no.9 pp. 1773-1781
- ISSN:
- 1615-7591
- Subject:
- Candida albicans; Candida glabrata; Candida tropicalis; Escherichia coli; Staphylococcus aureus; antifungal properties; aqueous solutions; bacteria; biomimetics; biosynthesis; cell walls; cetyltrimethylammonium bromide; fungi; ions; lemons; nanosilver; silver; structural proteins; toxicity
- Abstract:
- ... Biomimetic and economic method for the synthesis of silver nanoparticles (AgNPs) with controlled size has been reported in presence of shape-directing cetlytrimethylammonium bromide (CTAB). Biochemical reduction of Ag⁺ ions in micellar solution with an aqueous lemon extract produced spherical and polyhedral AgNPs with size ranging from 15 to 30 nm. The influence of [CTAB] and [lemon extract] on th ...
- DOI:
- 10.1007/s00449-015-1418-3
- https://doi.org/10.1007/s00449-015-1418-3
- Author:
- Shengyuan Wang; Gregory E. LeCroy; Fan Yang; Xiuli Dong; Ya-Ping Sun; Liju Yang
- Source:
- RSC advances 2015 v.5 no.111 pp. 91246-91253
- ISSN:
- 2046-2069
- Subject:
- Escherichia coli; aqueous solutions; bacteria; carbon nanotubes; coatings; composite polymers; crosslinking; dispersibility; filters; pathogens; porosity
- Abstract:
- ... This study explored the use of co-polymer poly(propionylethyleneimine-co-ethyleneimine (PPEI-EI) functionalized multi-walled carbon nanotubes (MWNTs) as a coating material on filters for capturing of bacterial pathogens from aqueous solutions. Polycarbonate membranes with pore sizes of 1.2 and 3.0 μm were coated with different PPEI-EI-MWNTs and cross-linked PPEI-EI-MWNTs samples at various coating ...
- DOI:
- 10.1039/c5ra16684e
- CHORUS:
- 10.1039/c5ra16684e
- https://doi.org/10.1039/c5ra16684e
- Author:
- Rasha M. Abdel-Rahman; Radim Hrdina; A.M. Abdel-Mohsen; Moustafa M.G. Fouda; A.Y. Soliman; F.K. Mohamed; Kazi Mohsin; Tiago Dinis Pinto
- Source:
- International journal of biological macromolecules 2015 v.80 pp. 107-120
- ISSN:
- 0141-8130
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; X-ray diffraction; antibacterial properties; aqueous solutions; bacteria; biopolymers; chemical structure; chemical treatment; chitin; chitosan; coasts; hydrochloric acid; minerals; nitrogen; nuclear magnetic resonance spectroscopy; particle size; raw materials; scanning electron microscopy; shrimp; sodium hydroxide; titration
- Abstract:
- ... Chitin and chitosan were obtained by chemical treatments of shrimp shells. Different particle sizes (50–1000μm) of the raw material were used to study their effect on size distribution, demineralization, deproteinization and deacetylation of chitin and chitosan isolation process. The particle size in the range of 800–1000μm was selected to isolate chitin, which was achieved by measuring nitrogen, ...
- DOI:
- 10.1016/j.ijbiomac.2015.06.027
- https://doi.org/10.1016/j.ijbiomac.2015.06.027
- Author:
- R. Arnitz; M. Nagl; W. Gottardi
- Source:
- Letters in applied microbiology 2015 v.61 no.6 pp. 518-522
- ISSN:
- 0266-8254
- Subject:
- Aspergillus fumigatus; Candida albicans; Escherichia coli; Pseudomonas aeruginosa; Staphylococcus aureus; antibacterial properties; antifungal properties; antiseptics; aqueous solutions; detection limit; disinfectants; hydrophobicity; iodine; octanol; pH
- Abstract:
- ... Recently, we showed that monochloramine (NH₂Cl) has a significantly stronger bactericidal and fungicidal activity than chloramine T despite its lower oxidizing power. This phenomenon was explained by increased penetration because of the higher lipophilicity and smaller bulk of NH₂Cl. As iodine (I₂) has an even fivefold higher bulk than NH₂Cl, a comparison of both compounds regarding their microbic ...
- DOI:
- 10.1111/lam.12490
- https://doi.org/10.1111/lam.12490
- Author:
- Fu Feiya; Li Lingyan; Liu Lianjie; Cai Jun; Zhang Yaping; Zhou Jinping; Zhang Lina
- Source:
- ACS Applied Materials & Interfaces 2015 v.7 no.4 pp. 2597-2606
- ISSN:
- 1944-8252
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray diffraction; X-ray photoelectron spectroscopy; antibacterial properties; aqueous solutions; bacteria; biocompatible materials; cellulose; coagulation; films (materials); mechanical properties; nanocomposites; nanoparticles; scanning electron microscopy; sodium sulfate; thermal stability; transmission electron microscopy; zinc oxide
- Abstract:
- ... Cellulose based ZnO nanocomposite (RCZ) films were prepared from cellulose carbamate–NaOH/ZnO solutions through one-step coagulation in Na₂SO₄ aqueous solutions. The structure and properties of RCZ films were characterized using XRD, FTIR, XPS, SEM, TEM, TG, tensile testing, and antibacterial activity tests. The content of ZnO in RCZ films was obtained in the range of 2.7–15.1 wt %. ZnO nanopartic ...
- DOI:
- 10.1021/am507639b
- https://doi.org/10.1021/am507639b
- Author:
- Fenghua Xu; Baicheng Weng; Robert Gilkerson; Luis Alberto Materon; Karen Lozano
- Source:
- Carbohydrate polymers 2015 v.115 pp. 16-24
- ISSN:
- 0144-8617
- Subject:
- Escherichia coli; Gram-negative bacteria; absorption; antibacterial properties; aqueous solutions; chitosan; crosslinking; extracellular matrix; fibroblasts; nanofibers; pullulan; solvents; tannins; thermal properties; tissue repair; toxicity; water solubility
- Abstract:
- ... This study presents the successful development of biocompatible tannic acid (TA)/chitosan (CS)/pullulan (PL) composite nanofibers (NFs) with synergistic antibacterial activity against the Gram-negative bacteria Escherichia coli. The NFs were developed utilizing the forcespinning® (FS) technique from CS-CA aqueous solutions to avoid the usage of toxic organic solvents. The ternary nanofibrous membr ...
- DOI:
- 10.1016/j.carbpol.2014.08.081
- https://doi.org/10.1016/j.carbpol.2014.08.081
- Author:
- Yao Ying; Gao Bin; Wu Feng; Zhang Cunzhong; Yang Liuyan
- Source:
- ACS applied materials 2015 v.7 no.19 pp. 10634-10640
- ISSN:
- 1944-8252
- Subject:
- Escherichia coli; X-ray diffraction; X-ray photoelectron spectroscopy; adsorption; aqueous solutions; bagasse; biochar; biofuels; carbon; energy-dispersive X-ray analysis; ethanol production; nanocomposites; nanosilver; physicochemical properties; pyrolysis; scanning electron microscopy; silver
- Abstract:
- ... A novel approach was used to prepare engineered biochar from biofuel residue (stillage from bagasse ethanol production) through slow pyrolysis. The obtained biochar was characterized for its physicochemical properties as well as silver sorption ability. Sorption experimental data showed that engineered biochar quickly and efficiently removed silver ion (Ag⁺) from aqueous solutions with a Langmuir ...
- DOI:
- 10.1021/acsami.5b03131
- https://doi.org/10.1021/acsami.5b03131
- Author:
- Yanan Liu; Yang Liu; Nina Liao; Fuhai Cui; Mira Park; Hak-Yong Kim
- Source:
- International journal of biological macromolecules 2015 v.79 pp. 638-643
- ISSN:
- 0141-8130
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; acetic acid; antibacterial properties; aqueous solutions; biocomposites; chitosan; energy-dispersive X-ray analysis; gels; irradiation; mixing; nanofibers; nanosilver; polyvinyl alcohol; scanning electron microscopy; silver; silver nitrate; transmission electron microscopy; ultraviolet-visible spectroscopy
- Abstract:
- ... Non-precipitation chitosan/silver nanoparticles (AgNPs) in 1% acetic acid aqueous solution was prepared from chitosan colloidal gel with various contents of silver nitrate via electron beam irradiation (EBI). Electrospun chitosan-based nanofibers decorated with AgNPs were successfully performed by blending poly(vinyl alcohol). The morphology of as-prepared nanofibers and the size of AgNPs in the n ...
- DOI:
- 10.1016/j.ijbiomac.2015.05.058
- https://doi.org/10.1016/j.ijbiomac.2015.05.058
- Author:
- Nuno F.F. Moreira; Carla A. Orge; Ana R. Ribeiro; Joaquim L. Faria; Olga C. Nunes; M. Fernando R. Pereira; Adrián M.T. Silva
- Source:
- Water research 2015 v.87 pp. 87-96
- ISSN:
- 0043-1354
- Subject:
- Escherichia coli; Staphylococcus aureus; amoxicillin; aqueous solutions; carbon; diclofenac; drugs; growth retardation; hormones; microorganisms; mineralization; oxidation; ozonation; ozone; pesticides; photocatalysis; photolysis; pollutants; toxicity; vapors; wastewater
- Abstract:
- ... The degradation of two organic pollutants (amoxicillin and diclofenac) in 0.1 mM aqueous solutions was studied by using advanced oxidation processes, namely ozonation, photolysis, photolytic ozonation, photocatalysis and photocatalytic ozonation. Diclofenac was degraded quickly under direct photolysis by artificial light (medium-pressure vapor arc, λexc > 300 nm), while amoxicillin remained very s ...
- DOI:
- 10.1016/j.watres.2015.08.059
- https://doi.org/10.1016/j.watres.2015.08.059
- Author:
- Xiangping Hao; Shougang Chen; Hui Yu; Dan Liu; Weixiang Sun
- Source:
- RSC advances 2015 v.6 no.1 pp. 39-43
- ISSN:
- 2046-2069
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; Vibrio anguillarum; antibacterial properties; antifouling agents; aqueous solutions; bacteria; carbon nanotubes; chemical bonding; chitosan; copper; dimethyl sulfoxide; ions; solubility; thermogravimetry; transmission electron microscopy; zinc
- Abstract:
- ... Covalent bonding of multiwalled carbon nanotubes (MWCNTs) with carboxymethyl chitosan (CmCs) was prepared by the grafting method. The reaction products were confirmed by Fourier transform infrared spectroscopy (FTIR). The transmission electron microscopy (TEM) images and the thermogravimetric analysis (TGA) showed that the MWCNTs were coated by the CmCs uniformly, and the solubility and stability ...
- DOI:
- 10.1039/c5ra21003h
- https://doi.org/10.1039/c5ra21003h
- Author:
- Biao Kang; Ying-Dong Li; Jie Liang; Xi Yan; Jun Chen; Wan-Zhong Lang
- Source:
- RSC advances 2015 v.6 no.3 pp. 1710-1721
- ISSN:
- 2046-2069
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray photoelectron spectroscopy; antibacterial properties; antifouling activities; aqueous solutions; carbon nanotubes; hydrophilicity; permeability; spinning; thermogravimetry; thermoplastics; ultrafiltration
- Abstract:
- ... Multi-walled carbon nanotubes grafted with (3-chloro-2-hydroxypropyl)-(5,5-dimethylhydantoinyl-1-ylmethyl)-dimethylammonium chloride (MWNTs-g-CDDAC) are doped in a PVDF spinning solution to prepare a kind of novel PVDF/MWNTs-g-CDDAC hollow fiber ultrafiltration membrane with antibacterial and antifouling properties. The MWNTs-g-CDDAC are firstly synthesized and characterized by FTIR, XPS and TGA. ...
- DOI:
- 10.1039/c5ra24804c
- https://doi.org/10.1039/c5ra24804c
- Author:
- Han Joo Kim; Mahesh Kumar Joshi; Hem Raj Pant; Jun Hee Kim; Euiho Lee; Cheol Sang Kim
- Source:
- Colloids and Surfaces A: Physicochemical and Engineering Aspects 2015 v.469 pp. 256-262
- ISSN:
- 0927-7757
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; X-ray diffraction; antibacterial properties; aqueous solutions; energy-dispersive X-ray analysis; fly ash; hot water treatment; industrial byproducts; methylene blue; nanocomposites; nanosilver; particle size; photoluminescence; photolysis; remediation; scanning electron microscopy; silver; surface area; transmission electron microscopy; ultraviolet radiation; zinc oxide
- Abstract:
- ... In this study, a stable Ag-doped ZnO/fly ash composite was synthesized using a facile one-pot hydrothermal process. An aqueous solution containing Ag and ZnO precursors with fly ash (FA) was subjected to a hydrothermal treatment at 140°C for 2h. The morphology and structure of the as-synthesized composite was investigated by several analytical methods, such as FE-SEM, EDS, TEM, X-ray diffraction ( ...
- DOI:
- 10.1016/j.colsurfa.2015.01.032
- https://doi.org/10.1016/j.colsurfa.2015.01.032
41. Polyethyleneimine–iron phosphate nanocomposite as a promising adsorbent for the isolation of DNA
- Author:
- Lin-Lin Hu; Bo Hu; Li-Ming Shen; Dan-Dan Zhang; Xu-Wei Chen; Jian-Hua Wang
- Source:
- Talanta 2015 v.132 pp. 857-863
- ISSN:
- 0039-9140
- Subject:
- DNA; Escherichia coli; adsorbents; adsorption; albumins; analytical kits; aqueous solutions; blood; buffers; electrostatic interactions; ferric phosphate; humans; nanocomposites; nanoparticles; pH; polyethyleneimine; polymerase chain reaction; salmon; sodium; solid phase extraction; sorption isotherms; spermatozoa
- Abstract:
- ... A polyethyleneimine (PEI)–iron phosphate (FePO4) nanocomposite is prepared by immobilization of PEI onto the surface of FePO4 nanoparticles via electrostatic interaction. The obtained PEI–FePO4 nanocomposites are spherical with a size centered in ca. 100nm. They provide a novel adsorbent for the solid-phase extraction of DNA from complex sample matrices. At pH 4, 50μgmL⁻¹ of DNA (salmon sperm DNA ...
- DOI:
- 10.1016/j.talanta.2014.10.047
- https://doi.org/10.1016/j.talanta.2014.10.047
- Author:
- Mudasir Ahmad; Shakeel Ahmed; Babu Lal Swami; Saiqa Ikram
- Source:
- Carbohydrate polymers 2015 v.132 pp. 164-172
- ISSN:
- 0144-8617
- Subject:
- derivatization; scanning electron microscopy; sulfur; aqueous solutions; nitrogen content; Fourier transform infrared spectroscopy; glycols; metal ions; schiff bases; calorimetry; Escherichia coli; copper; chitosan; adsorbents; temperature; antibacterial properties; adsorption; nuclear magnetic resonance spectroscopy; X-ray diffraction; chelation; bacteria
- Abstract:
- ... In the present work a method has been developed for the preparation of thiosemicarbazide-chitosan (TSCS) exploring the evaluation of enhanced adsorption of metal ions and antibacterial activities via derivatization. The splitting of carbon–carbon (C-2 and C-3) bond of vicinal diols of the chitosan chain is planned in a way to figure a “Schiff base intermediate” which undergoes the addition reactio ...
- DOI:
- 10.1016/j.carbpol.2015.06.034
- https://doi.org/10.1016/j.carbpol.2015.06.034
- Author:
- Luo Zhimin; Yang Dongliang; Qi Guangqin; Yuwen Lihui; Zhang Yuqian; Weng Lixing; Wang Lianhui; Huang Wei
- Source:
- ACS applied materials 2015 v.7 no.16 pp. 8539-8544
- ISSN:
- 1944-8252
- Subject:
- Escherichia coli; adhesion; anodes; aqueous solutions; biocompatibility; chemical reduction; chitosan; electron transfer; glassy carbon electrode; graphene oxide; microbial fuel cells; oligosaccharides; zeta potential
- Abstract:
- ... Water-dispersed reduced graphene oxide/chitosan oligosaccharide (RGO-CTSO) was prepared by chemical reduction of graphene oxide and synchronous functionalization with biocompatible chitosan oligosaccharide (CTSO). ζ potential measurement indicated that RGO-CTSO was highly stable in the acidic aqueous solution. RGO-CTSO was used to modify glassy carbon electrode (GCE) as the growth template of Esch ...
- DOI:
- 10.1021/acsami.5b00297
- https://doi.org/10.1021/acsami.5b00297
- Author:
- Jinping Cai; Qifeng Dang; Chengsheng Liu; Teng Wang; Bing Fan; Jingquan Yan; Yanyan Xu
- Source:
- International journal of biological macromolecules 2015 v.80 pp. 8-15
- ISSN:
- 0141-8130
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray diffraction; acetic acid; ammonium chloride; antibacterial properties; aqueous solutions; chitosan; hydrophobicity; nuclear magnetic resonance spectroscopy; solvents; water solubility
- Abstract:
- ... Chitosan-N-2-hydroxypropyl trimethyl ammonium chloride (QTS) was prepared by reaction of chitosan (CS) and glycidyl trimethylammonium chloride. Later, O-acetyl-chitosan-N-2-hydroxypropyl trimethyl ammonium chloride (AQTS) was synthesized by reaction of QTS with acetic acid in the presence of SOCl2. Both derivatives were characterized by FTIR, 1H NMR, TGA, and XRD techniques. The degree of quaterni ...
- DOI:
- 10.1016/j.ijbiomac.2015.05.061
- https://doi.org/10.1016/j.ijbiomac.2015.05.061
- Author:
- Bai Xiangyang; Li Linlin; Liu Huiyu; Tan Longfei; Liu Tianlong; Meng Xianwei
- Source:
- ACS applied materials 2015 v.7 no.2 pp. 1308-1317
- ISSN:
- 1944-8252
- Subject:
- Escherichia coli; Staphylococcus aureus; acute toxicity; alcohols; antibacterial properties; antibiotics; aqueous solutions; bacteria; cytotoxicity; disinfection; gels; mice; minimum inhibitory concentration; models; nanoparticles; polyvinyl alcohol; zinc oxide
- Abstract:
- ... Zinc oxide nanoparticles (ZnONPs) have been widely studied as the bacteriostatic reagents. However, synthesis of small ZnO nanoparticles with good monodispersion and stability in aqueous solution is still a challenge. Anti-infection research of ZnONPs used as antibacterial agent in vivo is rare. In this paper, a novel, sustainable, and simple method to synthesize ZnO nanoparticles with good monodi ...
- DOI:
- 10.1021/am507532p
- https://doi.org/10.1021/am507532p
- Author:
- Shengfeng Peng; Liqiang Zou; Wei Liu; Gan Lu; Weilin Liu; Ruihong Liang; Chengmei Liu; Jing Niu; Yanlin Cao; Zhen Liu; Xing Chen
- Source:
- Journal of food protection 2015 v.78 no.1 pp. 22-30
- ISSN:
- 0362-028X
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Listeria monocytogenes; Salmonella Typhimurium; Staphylococcus aureus; ambient temperature; antibacterial properties; aqueous solutions; bacteria; encapsulation; ethanol; eugenol; milk; oils; storage quality; storage time; water solubility
- Abstract:
- ... Eugenol is a major phenolic component with diverse biological activities. However, it is difficult to formulate into an aqueous solution due to poor water solubility, and this limits its application. In the present study, eugenol nanoliposomes (EN) were prepared by combining the ethanol injection method with the dynamic high-pressure microfluidization method. Good physicochemical characterizations ...
- DOI:
- 10.4315/0362-028X.JFP-14-246
- https://doi.org/10.4315/0362-028X.JFP-14-246
- Author:
- Jing Jing Wang; Guang-Yi Liu; Guang Liu; Qiao-Hui Zeng; Xing Shen; Yi Hou; Lin Li; Song-Qing Hu
- Source:
- Food research international 2015 v.78 pp. 201-208
- ISSN:
- 0963-9969
- Subject:
- Escherichia coli; amino acids; aqueous solutions; circular dichroism spectroscopy; crosslinking; disulfide bonds; dithiothreitol; fluorescence; functional properties; gel chromatography; glutenins; hydrophobic bonding; light scattering; molecular weight; polyacrylamide; polyacrylamide gel electrophoresis; reducing agents; sodium chloride; sodium dodecyl sulfonate; solubility; wheat flour
- Abstract:
- ... This study seeks to clarify and determine the fundamental properties of N-terminal domain of high molecular weight glutenin subunits (HMW-GS) 1Dx5 (1Dx5-N). 1Dx5-N was expressed in E. coli and its solubility was measured by spectrophotometry. Effects of edible salts (NaCl, Na2CO3), disulfide bond reductant dithiothreitol (DTT) and hydrophobic interactions of denaturant sodium dodecyl sulfonate (SD ...
- DOI:
- 10.1016/j.foodres.2015.10.010
- https://doi.org/10.1016/j.foodres.2015.10.010