You searched for:
Publication Year
2015
Remove constraint Publication Year: 2015
Subject
aqueous solutions
Remove constraint Subject: aqueous solutions
Subject term
aqueous solutions
Remove constraint Subject term: aqueous solutions
Subject term
Staphylococcus aureus
Remove constraint Subject term: Staphylococcus aureus
Text availability
Citation in PubAg
Remove constraint Text availability: Citation in PubAg
PubAg
Main content area
Limit your search
- 2015[remove]28
Search
28 Search Results
1 - 28 of 28
Search Results
- 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
2. 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:
- 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:
- Cheng Wei; Yang Chuan; Ding Xin; Engler Amanda C.; Hedrick James L.; Yang Yi Yan
- Source:
- Biomacromolecules 2015 v.16 no.7 pp. 1967-1977
- ISSN:
- 1526-4602
- Subject:
- Candida albicans; Fusarium solani; Pseudomonas aeruginosa; Staphylococcus aureus; X-ray photoelectron spectroscopy; adhesion; adsorption; ambient temperature; anti-infective agents; aqueous solutions; autoclaving; biofilm; bovine serum albumin; catechol; cell viability; chemical elements; coatings; contact angle; cornea; direct contact; epithelial cells; health services; humans; hydrophobicity; keratitis; microbial colonization; pathogens; polyethylene glycol; urea
- Abstract:
- ... Microbial colonization and biofilm formation is the leading cause of contact lens-related keratitis. Treatment of the condition remains a challenge because of the need for prolonged therapeutic course and high doses of antimicrobial agents especially for biofilm eradication. The development of strategies to prepare nonfouling contact lens surfaces is a more practical way to ensure users’ safety an ...
- DOI:
- 10.1021/acs.biomac.5b00359
- https://doi.org/10.1021/acs.biomac.5b00359
- 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:
- 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:
- Young-Hee Lee; Eun-Kyung Hwang; Young-Mee Baek; Han-Do Kim
- Source:
- Textile research journal v.85 no.10 pp. 1045-1054
- ISSN:
- 1746-7748
- Subject:
- Klebsiella pneumoniae; Staphylococcus aureus; acetaldehyde; ammonia; antibacterial properties; aqueous solutions; color; colorimetry; cotton; deodorization; dyes; methyl gallate; silk; textile fibers; wool; woolen fabric
- Abstract:
- ... To examine the deodorizing function and antibacterial activity of fabrics dyed with gallnut extract, a natural dying aqueous solution was prepared by extraction from gallnut using water at 90℃ for 90 min with a fixed liquor ratio of 1:10. The colorimetric properties, the deodorization performance and the antibacterial ability of fabrics (cotton, silk and wool fabrics) dyed with the natural coloran ...
- DOI:
- 10.1177/0040517514559580
- https://doi.org/10.1177/0040517514559580
- 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:
- Takashi Kuda; Gensui Shibata; Hajime Takahashi; Bon Kimura
- Source:
- Food microbiology 2015 v.46 pp. 234-238
- ISSN:
- 0740-0020
- Subject:
- Listeria monocytogenes; Salmonella Typhimurium; Staphylococcus aureus; ambient temperature; aqueous solutions; atomic force microscopy; bacteria; carrot juice; carrots; cross contamination; drying; edible seaweed; food pathogens; milk; protective effect; sediments; soymilk; stainless steel
- Abstract:
- ... In order to study the effect of food residues on the survival of food-borne pathogens, Salmonella Typhimurium, Staphylococcus aureus, and Listeria monocytogenes were subjected to drying conditions in the presence of small amounts of food such as carrot juice, aqueous solution of nori, milk, and soy-milk. After drying for 2 h at room temperature in the absence of food residue, cell counts of S. Typ ...
- DOI:
- 10.1016/j.fm.2014.08.014
- https://doi.org/10.1016/j.fm.2014.08.014
- Author:
- Alicia Alonso-Hernando; Carlos Alonso-Calleja; Rosa Capita
- Source:
- Food control 2015 v.47 pp. 71-76
- ISSN:
- 0956-7135
- Subject:
- Bacillus cereus; Brochothrix thermosphacta; Gram-positive bacteria; Listeria monocytogenes; Staphylococcus aureus; anti-infective properties; aqueous solutions; chickens; chlorine dioxide; chlorites; citric acid; cold; decontamination; dipping; legs; pH; sodium phosphate; spoilage; supply chain; temperature
- Abstract:
- ... The aim of this research was to compare the effectiveness of various chemical decontamination treatments against pathogenic and spoilage Gram-positive bacteria on poultry during storage under different simulated cold chain disruptions. The effect of dipping treatments (15 min; 20 °C) in aqueous solutions of 12% trisodium phosphate (TSP), 1200 ppm acidified sodium chlorite (ASC), 2% citric acid (CA ...
- DOI:
- 10.1016/j.foodcont.2014.06.032
- https://doi.org/10.1016/j.foodcont.2014.06.032
- 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:
- 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:
- 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:
- 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:
- Ran Li; Meng He; Tong Li; Lina Zhang
- Source:
- Carbohydrate polymers 2015 v.115 pp. 269-275
- ISSN:
- 0144-8617
- Subject:
- Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray diffraction; antibacterial properties; aqueous solutions; cellulose; cellulosic fibers; fabrics; mechanical properties; nanocomposites; nanosilver; scanning electron microscopy; silver; silver nitrate; soaking; thermal stability; thermogravimetry; transmission electron microscopy
- Abstract:
- ... We prepared cellulose/silver nanocomposite fibers by soaking the cellulose fibers in AgNO3 aqueous solution, which was heated at 80°C for 24h to synthesize Ag nanoparticles in situ. The structure and properties of the composite fibers were characterized by FT-IR, X-ray diffraction (XRD), scanning electron microscopy (SEM), transmitting electron microscopy (TEM), thermo-gravimetric analysis (TGA) a ...
- DOI:
- 10.1016/j.carbpol.2014.08.046
- https://doi.org/10.1016/j.carbpol.2014.08.046
- 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:
- Eugenia Reynoso; Mariana B. Spesia; Norman A. García; María A. Biasutti; Susana Criado
- Source:
- Journal of photochemistry and photobiology 2015 v.142 pp. 35-42
- ISSN:
- 1011-1344
- Subject:
- Staphylococcus aureus; adverse effects; anti-infective properties; antibiotic resistance; aqueous solutions; bacteria; ceftriaxone; ecosystems; oxygen; oxygen consumption; photolysis; photooxidation; prediction; riboflavin; superoxide anion; wastewater
- Abstract:
- ... Trace amounts of the widely used β-lactam antibiotics (Atbs) in waste water may cause adverse effects on the ecosystems and contribute to the proliferation of antibiotic-resistant bacteria. On these grounds, kinetic and mechanistic aspects of photosensitized degradation of Ceftriaxone (Cft) and Cefotaxime (Ctx), have been studied in pure water by stationary and time-resolved techniques. Additional ...
- DOI:
- 10.1016/j.jphotobiol.2014.11.004
- https://doi.org/10.1016/j.jphotobiol.2014.11.004
- 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
27. 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:
- Laura E. Valenti; Carla E. Giacomelli
- Source:
- Colloids and Surfaces B: Biointerfaces 2015 v.132 pp. 71-77
- ISSN:
- 0927-7765
- Subject:
- Raman spectroscopy; Staphylococcus aureus; Staphylococcus epidermidis; anti-infective properties; aqueous solutions; bacteria; biocompatible materials; bovine serum albumin; chondrocytes; colloids; composite materials; cytotoxicity; dispersions; drugs; light scattering; morbidity; nanosilver; orthopedics; osteoblasts; osteoclasts; pH; patients; powders; prostheses; silver; surgery; transmission electron microscopy; zeta potential
- Abstract:
- ... Silver-coated orthopedic implants and silver composite materials have been proposed to produce local biocidal activity at low dose to reduce post-surgery infection that remains one of the major contributions to the patient morbidity. This work presents the synthesis combined with the characterization, colloidal stability in biological relevant media, antimicrobial activity and handling properties ...
- DOI:
- 10.1016/j.colsurfb.2015.05.002
- https://doi.org/10.1016/j.colsurfb.2015.05.002