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You searched for: Journal name Colloids and surfaces Remove constraint Journal name: Colloids and surfaces Subject term Escherichia coli Remove constraint Subject term: Escherichia coli
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1. Antimicrobial effects of quaternary phosphonium salt intercalated clay minerals on Escherichia coli and Staphylococci aureus

Author:
Ting Wu; A-Gui Xie; Shao-Zao Tan; Xiang Cai
Source:
Colloids and surfaces 2011 v.86 no.1 pp. 232-236
ISSN:
0927-7765
Subject:
Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus; X-ray diffraction; anti-infective properties; clay minerals; colloids; growth retardation; minimum inhibitory concentration; particle size; particle size distribution; synergism; transmission electron microscopy; zeta potential
Abstract:
... The aim of this research was to determine the antimicrobial properties and influence factors of four clay minerals intercalated by quaternary phosphonium salt (tetradecyl tributyl phosphonium bromide, TDTB) on antimicrobial effects. Escherichia coli (E. coli) and Staphylococci aureus (S. aureus) were chosen for Minimal Inhibitory Concentration (MIC) tests to evaluate the antimicrobial activities o ...
DOI:
10.1016/j.colsurfb.2011.04.009

2. Bacteria and bacteriophage inactivation by silver and zinc oxide nanoparticles

Author:
Jia You; Yanyan Zhang; Zhiqiang Hu
Source:
Colloids and surfaces 2011 v.85 no.2 pp. 161-167
ISSN:
0927-7765
Subject:
Escherichia coli; agar; bacteria; bacteriophages; colloids; ions; microbial contamination; nanoparticles; nanosilver; public health; silver; zinc oxide
Abstract:
... Microbial contaminants such as bacteria and viruses are of great concern in water. As nanotechnology continues to grow, understanding the interactions of nanoparticles with bacteria and viruses is important to protect public health and the environment. In this study, the effect of two commonly used nanoparticles, silver nanoparticles (AgNPs, average particle size=21nm) and zinc oxide nanoparticles ...
DOI:
10.1016/j.colsurfb.2011.02.023

3. Bacterial adhesion inhibition of the quaternary ammonium functionalized silica nanoparticles

Author:
Jooyoung Song; Hyeyoung Kong; Jyongsik Jang
Source:
Colloids and surfaces 2011 v.82 no.2 pp. 651-656
ISSN:
0927-7765
Subject:
Deinococcus geothermalis; Escherichia coli; Staphylococcus aureus; antibacterial properties; antibiotics; bacteria; bacterial adhesion; biocides; coatings; durability; glass; growth retardation; hydrophobicity; microbial growth; nanoparticles; organosilicon compounds; quaternary ammonium compounds; silica; surfaces; synergism
Abstract:
... Quaternary ammonium compounds have been considered as excellent antibacterial agents due to their effective biocidal activity, long term durability and environmentally friendly performance. In this work, 3-(trimethoxysilyl)-propyldimethyloctadecylammonium chloride as a quaternary ammonium silane was applied for the surface modification of silica nanoparticles. The quaternary ammonium silane provid ...
DOI:
10.1016/j.colsurfb.2010.10.027
PubMed:
21115282

4. Comparison of bactericidal activities of silver nanoparticles with common chemical disinfectants

Author:
Karthik Chamakura; Rafael Perez-Ballestero; Zhiping Luo; Sajid Bashir; Jingbo Liu
Source:
Colloids and surfaces 2011 v.84 no.1 pp. 88-96
ISSN:
0927-7765
Subject:
Escherichia coli; antibacterial properties; bacteria; byproducts; cell membranes; cell walls; colloids; disinfectants; energy; hazardous waste; image analysis; minimum inhibitory concentration; nanosilver; phenol; sodium hypochlorite; spectroscopy; transmission electron microscopy
Abstract:
... Engineered nanomaterials display significant advantages due to their unique nanostructure, along with their tuneable properties for the designed application. Silver nanoparticles (Ag-NPs) have drawn attention due to their use as potent bactericidal agents and were characterized in this research to provide an understanding of the interaction between nanomaterials and bacteria. This work presents th ...
DOI:
10.1016/j.colsurfb.2010.12.020

5. Direct determination of the composition of aqueous micellar two-phase systems (AMTPS) using potentiometric titration—A rapid tool for detergent-based bioseparation

Author:
Ingo Fischer; Matthias Franzreb
Source:
Colloids and surfaces 2011 v.377 no.1-3 pp. 97-102
ISSN:
0927-7757
Subject:
Escherichia coli; acetic acid; buffers; colloids; electrodes; fermentation; nonionic surfactants; separation; sodium phosphate; temperature; titration
Abstract:
... Coexistence curves of two different aqueous micellar two-phase systems (AMTPS) were determined by potentiometric titration. The nonionic surfactants Triton X-114 and Eumulgin ES were quantified by means of the Metrohm NIO Surfactant Electrode with excellent correlations coefficients. The influence of different media on the titration end-point was ascertained. Measurement in the presence of commonl ...
DOI:
10.1016/j.colsurfa.2010.12.030

6. Enhanced visible light photocatalytic disinfection of gram negative, pathogenic Escherichia coli bacteria with Ag/TiV oxide nanoparticles

Author:
Ranjith G. Nair; Jetendra Kumar Roy; S.K. Samdarshi; A.K. Mukherjee
Source:
Colloids and surfaces 2011 v.86 no.1 pp. 7-13
ISSN:
0927-7765
Subject:
Escherichia coli; X-ray diffraction; X-ray photoelectron spectroscopy; absorption; bacteria; colloids; crystallites; disinfection; energy-dispersive X-ray analysis; nanoparticles; photocatalysis; photocatalysts; scanning electron microscopy; titanium; transmission electron microscopy; vanadium
Abstract:
... Silver sensitized titanium vanadium mixed Ag/TiV oxide photocatalyst was synthesized using sol–gel technique. The catalyst was characterized using XRD, SEM, EDAX, HRTEM, UV-DRS, XPS, and PL analysis which reveal the formation of a predominantly rutile mixed phase nanoparticles of 25–30nm crystallite size. The catalyst showed a marked red-shift in the absorption spectrum compared to Degussa P25. It ...
DOI:
10.1016/j.colsurfb.2011.03.011

7. High antibacterial efficiency of pDMAEMA modified silicon nanowire arrays

Author:
Hongwei Wang; Lei Wang; Pengchao Zhang; Lin Yuan; Qian Yu; Hong Chen
Source:
Colloids and surfaces 2011 v.83 no.2 pp. 355-359
ISSN:
0927-7765
Subject:
Escherichia coli; antibacterial properties; bacterial adhesion; cell death; colloids; nanowires; polymerization; polymers; silicon
Abstract:
... Materials of high antibacterial activity based on quaternized poly (2-(dimethylamino ethyl) methacrylate) (pDMAEMA) have been developed. DMAEMA was graft polymerized on silicon nanowire arrays (SiNWAs) by atom transfer radical polymerization (ATRP), and quaternized using benzyl chloride. The graft density on the modified nanowire arrays was much higher than on analogous smooth silicon, leading to ...
DOI:
10.1016/j.colsurfb.2010.12.009

8. Immobilizing silver nanoparticles onto the surface of magnetic silica composite to prepare magnetic disinfectant with enhanced stability and antibacterial activity

Author:
Xiaole Zhang; Hongyun Niu; Jinping Yan; Yaqi Cai
Source:
Colloids and surfaces 2011 v.375 no.1-3 pp. 186-192
ISSN:
0927-7757
Subject:
Escherichia coli; Staphylococcus aureus; antibacterial properties; assays; bacteria; chemical concentration; coatings; diffusion; disinfection; iron oxides; magnetic properties; magnetic separation; minimum inhibitory concentration; nanoparticles; nanosilver; paper; silica; silver; sodium chloride; surfaces; wastes; water
Abstract:
... In this article, silver nanoparticles inlaid Fe₃O₄–SiO₂ magnetic composite (Fe₃O₄–SiO₂–Ag) was successfully synthesized and its potential application as an antibacterial material in water disinfection was investigated. Silver nanoparticles, with diameter of about 10nm, were anchored homogeneously and tightly onto the silica coat of Fe₃O₄–SiO₂ magnetic nanoparticles, which increased the antibacteri ...
DOI:
10.1016/j.colsurfa.2010.12.009

9. Influence of solution chemistry on the deposition and detachment kinetics of RNA on silica surfaces

Author:
Yun Shen; Hyunjung Kim; Meiping Tong; Qingyun Li
Source:
Colloids and surfaces 2011 v.82 no.2 pp. 443-449
ISSN:
0927-7765
Subject:
calcium chloride; solutions; lysine; coatings; calcium; RNA transport; cations; quartz; surfaces; diffusion; pH; sodium chloride; electrical charges; viruses; ionic strength; RNA; zeta potential; bacteria
Abstract:
... The deposition kinetics of RNA extracted from both virus and bacteria on silica surfaces were examined in both monovalent (NaCl) and divalent (CaCl₂) solutions under a wide range of environmentally relevant ionic strength and pH conditions by utilizing a quartz crystal microbalance with dissipation (QCM-D). To better understand the RNA deposition mechanisms, QCM-D data were complemented by diffusi ...
DOI:
10.1016/j.colsurfb.2010.09.018
PubMed:
21030219

10. Initial bacterial attachment in slow flowing systems: Effects of cell and substrate surface properties

Author:
Hua Wang; Maysam Sodagari; Yajie Chen; Xin He; Bi-min Zhang Newby; Lu-Kwang Ju
Source:
Colloids and surfaces 2011 v.87 no.2 pp. 415-422
ISSN:
0927-7765
Subject:
Escherichia coli; Pseudomonas aeruginosa; Pseudomonas putida; bacteria; biofilm; colloids; contact angle; energy; glass; hydrophilicity; hydrophobicity; surface water
Abstract:
... Bacterial biofilm can have significant effects on the behaviors and/or performance of natural and man-made systems. Understanding the factors governing initial bacterial attachment is critical to biofilm management. In this study, the initial attachment of three bacteria, Pseudomonas aeruginosa, Escherichia coli and Pseudomonas putida, on two substrates, glass and octadecyltrichlorosilane (OTS) mo ...
DOI:
10.1016/j.colsurfb.2011.05.053

11. Interaction force measurement between E. coli cells and nanoparticles immobilized surfaces by using AFM

Author:
Wen Zhang; Andrew G. Stack; Yongsheng Chen
Source:
Colloids and surfaces 2011 v.82 no.2 pp. 316-324
ISSN:
0927-7765
Subject:
Escherichia coli; adhesion; aluminum oxide; atomic force microscopy; cells; hematite; models; nanoparticles; particle size; prediction; surfaces; water
Abstract:
... To better understand environmental behaviors of nanoparticles (NPs), we used the atomic force microscopy (AFM) to measure interaction forces between E. coli cells and NPs immobilized on surfaces in an aqueous environment. The results showed that adhesion force strength was significantly influenced by particle size for both hematite (α-Fe₂O₃) and corundum (α-Al₂O₃) NPs whereas the effect on the rep ...
DOI:
10.1016/j.colsurfb.2010.09.003
PubMed:
20932723

12. Lysis of Escherichia coli cells by lysozyme: Discrimination between adsorption and enzyme action

Author:
S.A. Sedov; N.G. Belogurova; S. Shipovskov; A.V. Levashov; P.A. Levashov
Source:
Colloids and surfaces 2011 v.88 no.1 pp. 131-133
ISSN:
0927-7765
Subject:
Escherichia coli; adsorption; chickens; colloids; desorption; egg albumen; ionic strength; lysozyme; osmosis; pH; sodium chloride
Abstract:
... The key factors of enzymatic lysis of cells are the interaction between the enzyme and the cell – catalytic and non-catalytic adsorption of enzyme on cell surface. Here, the studies of lysis of intact Escherichia coli cells by chicken egg white lysozyme were performed. It was found that the ionic strength has a dual effect onto the system. On the one hand, the desorption constant of the enzyme inc ...
DOI:
10.1016/j.colsurfb.2011.06.021

13. Mesoporous silica as a natural antimicrobial carrier

Author:
Sun-Young Park; Mary Barton; Phillip Pendleton
Source:
Colloids and surfaces 2011 v.385 no.1-3 pp. 256-261
ISSN:
0927-7757
Subject:
Bacillus cereus; Escherichia coli; Pichia; adsorption; allyl isothiocyanate; anti-infective properties; colloids; desorption; infrared spectroscopy; microorganisms; silica; vapors
Abstract:
... Mesoporous silica structures were synthesized as MCM-41 and SBA-15 from two different mole ratios of their constituents to test their capacity and feasibility for the controlled release of the natural antimicrobial allyl isothiocyanate (AITC). Pore filling by vapor phase AITC approached 100%. Infrared spectroscopy of the adsorbed phase confirmed it to be liquid-like. Controlled release as desorpti ...
DOI:
10.1016/j.colsurfa.2011.06.021

14. Micro-confinement of bacteria into w/o emulsion droplets for rapid detection and enumeration

Author:
Pierre R. Marcoux; Mathieu Dupoy; Raphael Mathey; Armelle Novelli-Rousseau; Virginie Heran; Sophie Morales; Florence Rivera; Pierre L. Joly; Jean-Pierre Moy; Frédéric Mallard
Source:
Colloids and surfaces 2011 v.377 no.1-3 pp. 54-62
ISSN:
0927-7757
Subject:
Escherichia coli; bacteria; colloids; droplets; emulsions; fluorescence; image analysis; metabolites; microbial growth; monitoring; rapid methods
Abstract:
... Today, rapid detection and identification of bacteria in microbiological diagnosis is a major issue. Reference methods usually rely on growth of microorganisms, with the drawback of lengthy time-to-result. The method provides global information on a clonal population that is known to be inhomogeneous relative to metabolic states and activities. Therefore, there may be a significant advantage of me ...
DOI:
10.1016/j.colsurfa.2010.12.013

15. Nanoparticle immunoagglutination Rayleigh scatter assay to complement microparticle immunoagglutination Mie scatter assay in a microfluidic device

Author:
Brian C. Heinze; Jeong-Yeol Yoon
Source:
Colloids and surfaces 2011 v.85 no.2 pp. 168-173
ISSN:
0927-7765
Subject:
Escherichia coli; colloids; information sources; light scattering; microbial detection; nanoparticles; particle size; pathogens
Abstract:
... In this work, particle immunoagglutination assays for pathogen detection, utilizing light scattering measurements at a fixed angle from incident light delivery, are explored in both Rayleigh and Mie scatter regimes through scatter intensity simulations and compared to experimental results. The average size of immunoagglutinated particles obtained from microscope images correspond to the particle s ...
DOI:
10.1016/j.colsurfb.2011.02.024

16. Plant extract mediated synthesis of silver and gold nanoparticles and its antibacterial activity against clinically isolated pathogens

Author:
D. MubarakAli; N. Thajuddin; K. Jeganathan; M. Gunasekaran
Source:
Colloids and surfaces 2011 v.85 no.2 pp. 360-365
ISSN:
0927-7765
Subject:
Escherichia coli; Fourier transform infrared spectroscopy; Mentha piperita; Staphylococcus aureus; antibacterial properties; biosynthesis; colloids; energy-dispersive X-ray analysis; humans; leaf extracts; menthol; nanogold; nanoparticles; nanosilver; pathogens; scanning electron microscopy; silver; silver nitrate
Abstract:
... Biosynthesis of nanoparticles is under exploration is due to wide biomedical applications and research interest in nanotechnology. Bioreduction of silver nitrate (AgNO₃) and chloroauric acid (HAuCl₄) for the synthesis of silver and gold nanoparticles respectively with the plant extract, Mentha piperita (Lamiaceae). The plant extract is mixed with AgNO₃ and HAuCl₂, incubated and studied synthesis o ...
DOI:
10.1016/j.colsurfb.2011.03.009

17. Preparation of active antibacterial LDPE surface through multistep physicochemical approach: I. Allylamine grafting, attachment of antibacterial agent and antibacterial activity assessment

Author:
František Bílek; Táňa Křížová; Marián Lehocký
Source:
Colloids and surfaces 2011 v.88 no.1 pp. 440-447
ISSN:
0927-7765
Subject:
Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray photoelectron spectroscopy; agar; air; antibacterial properties; antibiotics; benzalkonium chloride; chlorhexidine; colloids; contact angle; energy; in vitro studies; polyethylene; scanning electron microscopy
Abstract:
... Low-density polyethylene (LDPE) samples were treated in air plasma discharge, coated by polyallyamine brush thought copolymeric grafting surface-from reaction and deposited four common antibacterial agents (benzalkonium chloride, bronopol, chlorhexidine and triclosan) to gain material with active antibacterial properties. Surface characteristics were evaluated by static contact angle measurement w ...
DOI:
10.1016/j.colsurfb.2011.07.027

18. Preparation of amino functionalized silica micro beads by dry method for supporting silver nanoparticles with antibacterial properties

Author:
Dang Viet Quang; Pradip B. Sarawade; Askwar Hilonga; Jong-Kil Kim; Young Gyu Chai; Sang Hoon Kim; Jae-Yong Ryu; Hee Taik Kim
Source:
Colloids and surfaces 2011 v.389 no.1-3 pp. 118-126
ISSN:
0927-7757
Subject:
Bacillus subtilis; Escherichia coli; Fourier transform infrared spectroscopy; Gram-positive bacteria; X-ray diffraction; antibacterial properties; antibiotics; chemical reduction; chlorine; colloids; disinfectants; nanosilver; silica gel; silver
Abstract:
... The development of resistance to antibiotics and disinfectants as well as the occurrence of many adverse effects caused by using conventional antibacterial agents like chlorine compounds have prompted scientists to search for new antibacterial agents. Among the many nanomaterials, silver nanoparticles have proven to be a good alternative for its antibacterial properties. In this study, silver nano ...
DOI:
10.1016/j.colsurfa.2011.08.042

19. Preparation, characterization and in vitro release study of carvacrol-loaded chitosan nanoparticles

Author:
Lalita Keawchaoon; Rangrong Yoksan
Source:
Colloids and surfaces 2011 v.84 no.1 pp. 163-171
ISSN:
0927-7765
Subject:
Bacillus cereus; Escherichia coli; Staphylococcus aureus; acetates; anti-infective properties; carvacrol; chitosan; colloids; emulsions; encapsulation; gelation; nanoparticles; pH; tripolyphosphates; zeta potential
Abstract:
... The fabrication of carvacrol-loaded chitosan nanoparticles was achieved by a two-step method, i.e., oil-in-water emulsion and ionic gelation of chitosan with pentasodium tripolyphosphate. The obtained particles possessed encapsulation efficiency (EE) and loading capacity (LC) in the ranges of 14–31% and 3–21%, respectively, when the initial carvacrol content was 0.25–1.25g/g of chitosan. The indiv ...
DOI:
10.1016/j.colsurfb.2010.12.031

20. Selective immobilization of Acinetobacter junii on the natural zeolitized tuff in municipal wastewater

Author:
J. Hrenovic; D. Kovacevic; T. Ivankovic; D. Tibljas
Source:
Colloids and surfaces 2011 v.88 no.1 pp. 208-214
ISSN:
0927-7765
Subject:
Acinetobacter junii; Enterococcus faecalis; Escherichia coli; autoclaving; bacteria; biomass; colloids; municipal wastewater; phosphates; tuff
Abstract:
... The immobilization of desired bacteria onto material was usually performed in synthetic media. The aim of this study was to test the immobilization of phosphate (P)-accumulating bacteria Acinetobacter junii onto natural zeolitized tuff (NZ) in the raw or sterilized municipal wastewater containing the common bacteria Escherichia coli and Enterococcus faecalis and the performance of immobilized A. j ...
DOI:
10.1016/j.colsurfb.2011.06.033

21. Silica–silver core–shell particles for antibacterial textile application

Author:
K. Nischala; Tata N. Rao; Neha Hebalkar
Source:
Colloids and surfaces 2011 v.82 no.1 pp. 203-208
ISSN:
0927-7765
Subject:
X-ray photoelectron spectroscopy; antibacterial properties; antibiotics; bacteria; color; cotton fabric; growth retardation; ions; microbial growth; nanosilver; plate count; silica; silver; surface plasmon resonance
Abstract:
... The silica–silver core–shell particles were synthesized by simple one pot chemical method and were employed on the cotton fabric as an antibacterial agent. Extremely small (1–2nm) silver nanoparticles were attached on silica core particles of average 270nm size. The optimum density of the nano silver particles was found which was sufficient to show good antibacterial activity as well as the suppre ...
DOI:
10.1016/j.colsurfb.2010.08.039
PubMed:
20864320

22. Silver nanoparticles decorated, flexible SiO₂ nanofibers with long-term antibacterial effect as reusable wound cover

Author:
Zhijun Ma; Huijiao Ji; Dezhi Tan; Yu Teng; Guoping Dong; Jiajia Zhou; Jianrong Qiu; Ming Zhang
Source:
Colloids and surfaces 2011 v.387 no.1-3 pp. 57-64
ISSN:
0927-7757
Subject:
Escherichia coli; antibacterial properties; colloids; nanofibers; nanosilver; polymers; silica
Abstract:
... As wound cover, electrospinning-derived organic polymer nanofibers usually cannot bear calcinations to remove contaminants from wound for regeneration of their functionality, thus are not reusable. In this investigation, we make an exploration of inorganic SiO₂ nanofibers as reusable wound cover. SiO₂ nanofibers here are fabricated with the sol–gel technique and the electrospinning method. Silver ...
DOI:
10.1016/j.colsurfa.2011.07.025

23. Study of zwitterionic sulfopropylbetaine containing reactive siloxanes for application in antibacterial materials

Author:
Shiguo Chen; Shaojun Chen; Song Jiang; Yangmiao Mo; Junxuan Luo; Jiaoning Tang; Zaochuan Ge
Source:
Colloids and surfaces 2011 v.85 no.2 pp. 323-329
ISSN:
0927-7765
Subject:
Escherichia coli; Staphylococcus aureus; animals; antibacterial properties; antibiotics; bacteria; colloids; economic impact; glass; minimum inhibitory concentration; pH; quaternary ammonium compounds; siloxanes; zwitterions
Abstract:
... Antibacterial agents receive a great deal of attention around the world due to the interesting academic problems of how to combat bacteria and of the beneficial health, social and economic effects of successful agents. Scientists are actively developing new antibacterial agents for biomaterial applications. This paper reports the novel antibacterial agent siloxane sulfopropylbetaine (SSPB), which ...
DOI:
10.1016/j.colsurfb.2011.03.004

24. Synthesis and characterization of zinc/iron oxide composite nanoparticles and their antibacterial properties

Author:
Tamar Gordon; Benny Perlstein; Ofir Houbara; Israel Felner; Ehud Banin; Shlomo Margel
Source:
Colloids and surfaces 2011 v.374 no.1-3 pp. 1-8
ISSN:
0927-7757
Subject:
Escherichia coli; Staphylococcus aureus; antibacterial properties; antibiotics; bacteria; catalytic activity; colloids; composite materials; disinfectants; flocculation; gelatin; growth retardation; hydrolysis; hydrophobicity; ions; iron; iron oxides; magnetic properties; microbial growth; nanoparticles; oxygen; particle size; reactive oxygen species; suspensions; toxicity; water; zinc; zinc oxide
Abstract:
... Inorganic metal oxides may serve as effective disinfectants, due to their relatively non-toxic profile, chemical stability and efficient antibacterial activity. Among metal oxide nanoparticles, zinc oxide demonstrates significant bacterial growth inhibition on a broad spectrum of bacteria, mainly by catalysis of reactive oxygen species (ROS) formation from water and oxygen. Aqueous suspensions of ...
DOI:
10.1016/j.colsurfa.2010.10.015

25. Synthesis of silver nanoparticles in an aqueous suspension of graphene oxide sheets and its antimicrobial activity

Author:
Manash R. Das; Rupak K. Sarma; Ratul Saikia; Vinayak S. Kale; Manjusha V. Shelke; Pinaki Sengupta
Source:
Colloids and surfaces 2011 v.83 no.1 pp. 16-22
ISSN:
0927-7765
Subject:
Escherichia coli; Gram-negative bacteria; Pseudomonas aeruginosa; X-ray diffraction; antimicrobial properties; chemical reduction; graphene; microbial growth; nanoparticles; nanosilver; particle size; silver; silver nitrate; solutions; suspensions; transmission electron microscopy; water
Abstract:
... A solution-based approach to the synthesis of silver (Ag) nanoparticles by chemical reduction of AgNO₃ in a graphene oxide (GrO) suspension is demonstrated. X-ray diffraction and transmission electron microscopy indicate that the Ag nanoparticles, of size range 5–25nm, were decorated on the GrO sheets. The size and shape of the Ag nanoparticles are dependent on the concentration of the AgNO₃ solut ...
DOI:
10.1016/j.colsurfb.2010.10.033
PubMed:
21109409

26. Total internal reflection imaging of microorganism adhesion using an oil immersion objective

Author:
Tzvetan Velinov; Yana Asenovska; Dessislava Marinkova; Lyubov Yotova; Stoyanka Stoitsova; Maria Bivolarska; Lyuba Stavitskaya
Source:
Colloids and surfaces 2011 v.88 no.1 pp. 407-412
ISSN:
0927-7765
Subject:
Escherichia coli; Saccharomyces cerevisiae; adhesion; bacteria; colloids; image analysis; microscopy; models; oils; yeasts
Abstract:
... In this paper, we report the results of total internal reflection microscopy investigations of the interaction of two types of microorganisms: Saccharomyces cerevisiae and Escherichia coli with substrates. It is shown that with this method qualitative and quantitative information about cells–substrate interaction can be obtained. One can easily make a difference between attached and non-attached a ...
DOI:
10.1016/j.colsurfb.2011.07.022

27. A sunlight-induced rapid synthesis of silver nanoparticles using sodium salt of N-cholyl amino acids and its antimicrobial applications

Author:
M. Annadhasan; V.R. SankarBabu; R. Naresh; K. Umamaheswari; N. Rajendiran
Source:
Colloids and surfaces 2012 v.96 no. pp. 14-21
ISSN:
0927-7765
Subject:
Candida albicans; Candida krusei; Candida tropicalis; Escherichia coli; Fourier transform infrared spectroscopy; Pseudomonas; Staphylococcus aureus; additives; amino acid composition; amino acids; antifungal properties; aqueous solutions; bile salts; colloids; guidelines; ions; light scattering; nanosilver; silver; silver nitrate; solar radiation; transmission electron microscopy
Abstract:
... Aqueous solution containing two additives, silver nitrate (AgNO₃) and sodium salt of N-cholyl amino acid were irradiated by sunlight for the synthesis of spherical shaped AgNPs without the need for an additional stabilizer or capping agent. Variations of N-cholyl amino acid concentration provided good control over the morphology of the AgNPs, while the carboxylate group of bile salt reduced the Ag ...
DOI:
10.1016/j.colsurfb.2012.03.009

28. Antimicrobial activity of CdS and Ag₂S quantum dots immobilized on poly(amidoamine) grafted carbon nanotubes

Author:
Gururaj M. Neelgund; Aderemi Oki; Zhiping Luo
Source:
Colloids and surfaces 2012 v.100 no. pp. 215-221
ISSN:
0927-7765
Subject:
Escherichia coli; Fourier transform infrared spectroscopy; Pseudomonas aeruginosa; Raman spectroscopy; Staphylococcus aureus; X-ray diffraction; antibacterial properties; carbon nanotubes; colloids; energy; methylmethacrylate; quantum dots; transmission electron microscopy
Abstract:
... Herein we report the design of antimicrobial nanohybrids, f-MWCNTs-CdS and f-MWCNTs-Ag₂S developed by covalent grafting of cationic hyperbranched dendritic polyamidoamine (PAMAM) onto multiwalled carbon nanotubes (MWCNTs) and successive deposition of CdS and Ag₂S quantum dots (QDs). The CdS and Ag₂S QDs were in situ deposited on PAMAM grafted MWCNTs instead of anchoring the pre-synthesized QDs. Th ...
DOI:
10.1016/j.colsurfb.2012.05.012
PubMed:
22766300
PubMed Central:
PMC3424272

29. Biological properties of sodium alkyl methyl ester sulfonate/alkyltrimethylammonium bromide surfactant mixtures

Author:
S.P. Wong; W.H. Lim; S.F. Cheng; C.H. Chuah
Source:
Colloids and surfaces 2012 v.89 no. pp. 48-52
ISSN:
0927-7765
Subject:
Escherichia coli; Pseudomonas aeruginosa; Staphylococcus aureus; anionic surfactants; bacteria; cationic surfactants; colloids; detergents; disinfectants; food industry; minimum inhibitory concentration; mixing; quaternary ammonium compounds; toxicity
Abstract:
... Quaternary ammonium compounds (QACs) are commonly used as disinfectant in medical care, food industry, detergents and glue industries. This is due to a small concentration of QACs is sufficient to inhibit the growth of various bacteria strains. In this work, the inhibitive power of cationic surfactants, alkyltrimethylammonium bromide (CₙTAB) in the presence of anionic surfactants, sodium alkyl met ...
DOI:
10.1016/j.colsurfb.2011.08.021

30. Biosynthesis of silver nanoparticles from Tribulus terrestris and its antimicrobial activity: A novel biological approach

Author:
V. Gopinath; D. MubarakAli; S. Priyadarshini; N. Meera Priyadharsshini; N. Thajuddin; P. Velusamy
Source:
Colloids and surfaces 2012 v.96 no. pp. 69-74
ISSN:
0927-7765
Subject:
Bacillus subtilis; Escherichia coli; Fourier transform infrared spectroscopy; Pseudomonas aeruginosa; Staphylococcus aureus; Streptococcus; Tribulus terrestris; X-ray diffraction; antibacterial properties; bacteria; biosynthesis; colloids; dried fruit; fruiting bodies; medicine; multiple drug resistance; nanoparticles; nanosilver; phytopharmaceuticals; plant extracts; silver; silver nitrate; therapeutics; transmission electron microscopes; transmission electron microscopy
Abstract:
... In the recent decades, increased development of green synthesis of nanoparticles is inevitable because of its incredible applications in all fields of science. There were numerous work have been produced based on the plant and its extract mediated synthesis of nanoparticles, in this present study to explore that the novel approaches for the biosynthesis of silver nanoparticles using plant fruit bo ...
DOI:
10.1016/j.colsurfb.2012.03.023

31. Characterisation of spin coated engineered Escherichia coli biofilms using atomic force microscopy

Author:
Andreas N. Tsoligkas; James Bowen; Michael Winn; Rebecca J.M. Goss; Tim W. Overton; Mark J.H. Simmons
Source:
Colloids and surfaces 2012 v.89 no. pp. 152-160
ISSN:
0927-7765
Subject:
Escherichia coli; adhesion; atomic force microscopy; biocatalysts; biofilm; bioreactors; colloids; electron microscopy; glass; polymers
Abstract:
... The ability of biofilms to withstand chemical and physical extremes gives them the potential to be developed as robust biocatalysts. Critical to this issue is their capacity to withstand the physical environment within a bioreactor; in order to assess this capability knowledge of their surface properties and adhesive strength is required. Novel atomic force microscopy experiments conducted under g ...
DOI:
10.1016/j.colsurfb.2011.09.007

32. Characterization and antibacterial properties of Ag NPs loaded nylon-6 nanocomposite prepared by one-step electrospinning process

Author:
Bishweshwar Pant; Hem Raj Pant; Dipendra Raj Pandeya; Gopal Panthi; Ki Taek Nam; Seong Tshool Hong; Cheol Sang Kim; Hak Yong Kim
Source:
Colloids and surfaces 2012 v.395 no. pp. 94-99
ISSN:
0927-7757
Subject:
Escherichia coli; Staphylococcus aureus; antibacterial properties; colloids; formic acid; nanocomposites; nanofibers; nanosilver; reducing agents; silver nitrate; solvents; water filters
Abstract:
... A facile one-step approach to fabricate nylon-6 nanofibers decorated with silver nanoparticles by electrospinning has been reported. The method did not need post-treatments and could be carried out at ambient room condition. It employed the electrospinning solvents [formic acid and methoxy poly(ethylene glycol)] as a reducing agent for the conversion of AgNO₃ into Ag NPs during the solution prepar ...
DOI:
10.1016/j.colsurfa.2011.12.011

33. Durable antibacterial and cross-linking cotton with colloidal silver nanoparticles and butane tetracarboxylic acid without yellowing

Author:
Majid Montazer; Farbod Alimohammadi; Ali Shamei; Mohammad Karim Rahimi
Source:
Colloids and surfaces 2012 v.89 no. pp. 196-202
ISSN:
0927-7765
Subject:
Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; anti-infective properties; bacteria; butanes; colloids; color; cotton; cotton fabric; crosslinking; durability; energy-dispersive X-ray analysis; nanoparticles; nanosilver; scanning electron microscopy; wettability
Abstract:
... Colloidal nano silver was applied on the surface of cotton fabric and stabilized using 1,2,3,4-butanetetracarboxylic acid (BTCA). The two properties of antimicrobial activity and resistance against creasing were imparted to the samples of fabric as a result of the treatment with silver nano colloid and BTCA. The antimicrobial property of samples was evaluated using two pathogenic bacteria includin ...
DOI:
10.1016/j.colsurfb.2011.09.015

34. Enhanced antibacterial activity of amino acids-functionalized multi walled carbon nanotubes by a simple method

Author:
Hadi Zare Zardini; Ahmad Amiri; Mehdi Shanbedi; Morteza Maghrebi; Majid Baniadam
Source:
Colloids and surfaces 2012 v.92 no. pp. 196-202
ISSN:
0927-7765
Subject:
Escherichia coli; Fourier transform infrared spectroscopy; Gram-negative bacteria; Raman spectroscopy; Salmonella Typhimurium; adsorption; antibacterial properties; arginine; carbon nanotubes; colloids; cytotoxicity; disinfection; industry; lysine; microwave radiation; minimum inhibitory concentration; transmission electron microscopy
Abstract:
... Multi-walled carbon nanotubes (MWCNTs) were first functionalized by arginine and lysine under microwave radiation. Surface functionalization was confirmed by Fourier transform infrared (FTIR) spectroscopy, Raman spectroscopy, and transmission electron microscopy (TEM). After the MWCNTs were functionalized by arginine and lysine, the antibacterial activity of all treated samples was increased signi ...
DOI:
10.1016/j.colsurfb.2011.11.045

35. Fabrication of ellagic acid incorporated self-assembled peptide microtubes and their applications

Author:
Stacey N. Barnaby; Karl R. Fath; Areti Tsiola; Ipsita A. Banerjee
Source:
Colloids and surfaces 2012 v.95 no. pp. 154-161
ISSN:
0927-7765
Subject:
Escherichia coli; Staphylococcus aureus; antibacterial properties; biocompatibility; colloids; cytotoxicity; drugs; ellagic acid; kidneys; pH; polyphenols; rats; threonine
Abstract:
... Ellagic acid (EA), a plant polyphenol known for its wide-range of health benefits was encapsulated within self-assembled threonine based peptide microtubes. The microtubes were assembled using the synthesized precursor bolaamphiphile bis(N-α-amido threonine)-1,5-pentane dicarboxylate. The self-assembly of the microstructures was probed at varying pH. In general, tubular formations were observed at ...
DOI:
10.1016/j.colsurfb.2012.02.031

36. Facile construction of functional biosurface via SI-ATRP and “click glycosylation”

Author:
Wantong Song; Chunsheng Xiao; Liguo Cui; Zhaohui Tang; Xiuli Zhuang; Xuesi Chen
Source:
Colloids and surfaces 2012 v.93 no. pp. 188-194
ISSN:
0927-7765
Subject:
Escherichia coli; colloids; glycosylation; mannose; pathogens; polymerization
Abstract:
... Construction of high density glycosylated surfaces is important in the investigation of interactions between pathogens and surface carbohydrates. In this work, we provided a flexible method for glycosyl surface fabrication by combination of surface-initiated atom transfer radical polymerization (SI-ATRP) and copper-catalyzed azide-alkyne 1,3-dipolar cycloaddition (CuAAC) reaction. Through this str ...
DOI:
10.1016/j.colsurfb.2012.01.002

37. Facile synthesis of Ag/GNS-g-PAA nanohybrids for antimicrobial applications

Author:
Zhixin Tai; Haibin Ma; Bin Liu; Xingbin Yan; Qunji Xue
Source:
Colloids and surfaces 2012 v.89 no. pp. 147-151
ISSN:
0927-7765
Subject:
Escherichia coli; Staphylococcus aureus; X-ray diffraction; acrylic acid; ambient temperature; anti-infective properties; aqueous solutions; biocompatible materials; colloids; energy; graphene; nanocrystals; nanosheets; nanosilver; polyacrylic acid; reducing agents; silver; silver nitrate; spectroscopy; thermogravimetry; transmission electron microscopes
Abstract:
... A facile and efficient aqueous phase-based strategy to synthesize silver nanocrystal/graphene nanosheet (GNS) nanohybrids at room temperature, via in situ poly(acrylic acid) (PAA) grafting followed by attachment of Ag nanocrystals, was reported. In the presence of PAA-grafted GNSs, Ag nanoparticles were in situ generated from AgNO₃ aqueous solution without any additional reducing agent or complica ...
DOI:
10.1016/j.colsurfb.2011.09.006

38. Formation of nano-plate silver particles in the presence of polyampholyte copolymer

Author:
L.V. Trandafilović; A.S. Luyt; N. Bibić; S. Dimitrijević-Branković; M.K. Georges; T. Radhakrishnan; V. Djoković
Source:
Colloids and surfaces 2012 v.414 no. pp. 17-25
ISSN:
0927-7757
Subject:
Candida albicans; Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray diffraction; air; anti-infective properties; colloids; composite polymers; heat; nanoparticles; nanosilver; pathogens; physical properties; polymerization; silver; surface plasmon resonance; transmission electron microscopy
Abstract:
... Poly(2-(dimethylamino)ethyl methacrylate-co-acrylic acid) polyampholyte copolymers were synthesized by radical polymerization of the co-monomers in different molar ratios (2–1, 1–1 and 1–2). The water solutions of the obtained materials were used as stabilization agents for the synthesis of silver nanoparticles. XRD, FTIR and DMA methods were used to study the physical properties of the pure co-po ...
DOI:
10.1016/j.colsurfa.2012.08.010

39. Influence of humic acid on the transport behavior of bacteria in quartz sand

Author:
Haiyan Yang; Hyunjung Kim; Meiping Tong
Source:
Colloids and surfaces 2012 v.91 no. pp. 122-129
ISSN:
0927-7765
Subject:
Escherichia coli; bacteria; colloids; humic acids; ionic strength; mixing; pH; porous media; quartz; rivers; sand; sodium chloride; zeta potential
Abstract:
... The significance of natural organic matter (NOM) on the transport of bacteria in packed porous media (quartz sand) was examined in both NaCl and CaCl₂–NaCl mixing solutions at pH 6.0. Three representative cell types (with EPS), Rhodococcus sp. QL2 (Gram-positive, non-motile), Escherichia coli BL21 (Gram-negative, non-motile), and E. coli C3000 (Gram-negative, motile), were utilized to systematical ...
DOI:
10.1016/j.colsurfb.2011.10.058

40. Novel hydrogel particles and their IPN films as drug delivery systems with antibacterial properties

Author:
Coskun Silan; Alper Akcali; Muşerref Tatman Otkun; Nilgun Ozbey; Sultan Butun; Ozgur Ozay; Nurettin Sahiner
Source:
Colloids and surfaces 2012 v.89 no. pp. 248-253
ISSN:
0927-7765
Subject:
Bacillus subtilis; Escherichia coli; Staphylococcus aureus; absorption; acrylamides; antibacterial properties; bacteria; drug delivery systems; drugs; fluorescein; hydrocolloids; mixing; nanoparticles; polymerization; pyridines; sodium
Abstract:
... Poly(acrylonitrile) (p(AN))-based materials such poly(acrylonitrile-co-(3-acrylamidopropyl)-trimethylammonium chloride (p(AN-co-APTMACl)), poly(acrylonitrile-co-4-viniyl pyridine) (p(AN-co-4-VP)) and poly(acrylonitrile-co-N-isopropylacrylamide) (p(AN-co-NIPAM)) core–shell nanoparticles were prepared. The core materials, AN, in p(AN-co-4-VP) nanoparticles, were amidoximated and the shell materials, ...
DOI:
10.1016/j.colsurfb.2011.09.024

41. Novel ionic liquid-type Gemini surfactants: Synthesis, surface property and antimicrobial activity

Author:
Hongqi Li; Chaochao Yu; Rui Chen; Juan Li; Jinxing Li
Source:
Colloids and surfaces 2012 v.395 no. pp. 116-124
ISSN:
0927-7757
Subject:
Escherichia coli; Gram-negative bacteria; anti-infective properties; colloids; energy; foams; hydrogen bonding; ionic liquids; micelles; nuclear magnetic resonance spectroscopy; surface area; surface tension; surfactants
Abstract:
... Novel quaternary ammonium Gemini surfactants, which turned out to be ionic liquids due to the intermolecular hydrogen bonding formed from hydroxyl groups in the spacers, were synthesized and characterized by IR, ¹H NMR, ¹³C NMR and mass spectra. The surface properties of the Gemini surfactants were investigated by means of surface tension measurements. Surface tension parameters including surface ...
DOI:
10.1016/j.colsurfa.2011.12.014

42. Performance of a biosurfactant produced by a Bacillus subtilis strain isolated from crude oil samples as compared to commercial chemical surfactants

Author:
Deisi Altmajer Vaz; Eduardo J. Gudiña; Encarnación Jurado Alameda; José A. Teixeira; Lígia R. Rodrigues
Source:
Colloids and surfaces 2012 v.89 no. pp. 167-174
ISSN:
0927-7765
Subject:
Bacillus subtilis; Escherichia coli; Staphylococcus aureus; biosurfactants; colloids; emulsifying; emulsions; hexadecane; industry; micelles; pH; petroleum; sulfonates; surface tension; surfactin; temperature
Abstract:
... In this work, the biosurfactant produced by a Bacillus subtilis strain isolated from crude oil samples was characterized and its properties compared with commercially available chemical surfactants. The purified biosurfactant production yield (YP/X) was 0.20g/gcell dry weight. The surface tension (29.0mN/m) and critical micelle concentration (40mg/l) were found to be similar to the values previous ...
DOI:
10.1016/j.colsurfb.2011.09.009

43. Preparation and stability study of norfloxacin-loaded solid lipid nanoparticle suspensions

Author:
Yan Wang; Luyan Zhu; Zhao Dong; Shuyu Xie; Xiaojin Chen; Mengmeng Lu; Xiaofang Wang; Xihe Li; WenZhong Zhou
Source:
Colloids and surfaces 2012 v.98 no. pp. 105-111
ISSN:
0927-7765
Subject:
Escherichia coli; ambient temperature; antibacterial properties; colloids; drugs; homogenization; mice; nanoparticles; norfloxacin; physicochemical properties; ultrasonics; zeta potential
Abstract:
... This work aims to develop norfloxacin-loaded solid lipid nanoparticle (NFX-SLN) suspensions as a novel formulation. NFX-SLN suspensions were prepared by hot homogenization and ultrasonic technique. The stability of the suspensions was studied after stored at 4°C and room temperature from 3 to 9 months. The physicochemical characteristics of the NFX-SLN, in vitro release patterns, in vitro antibact ...
DOI:
10.1016/j.colsurfb.2012.05.006

44. Preparation, characterization and antibacterial applications of ZnO-nanoparticles coated polyethylene films for food packaging

Author:
Rasika Tankhiwale; S.K. Bajpai
Source:
Colloids and surfaces 2012 v.90 no. pp. 16-20
ISSN:
0927-7765
Subject:
Escherichia coli; X-ray diffraction; bacteria; bacterial contamination; colloids; food packaging; microbial growth; nanoparticles; packaging materials; polyethylene film; surface plasmon resonance; transmission electron microscopy; zinc oxide
Abstract:
... The present work describes the preparation of ZnO nanoparticles loaded starch-coated polyethylene film. The presence of ZnO nanoparticles was confirmed by surface plasmon resonance (SPR), X-ray diffraction (XRD) studies and transmission electron microscopy (TEM). The ZnO loaded film was tested for its biocidal action against model bacteria Escherichia coli using zone inhibition and killing kinetic ...
DOI:
10.1016/j.colsurfb.2011.09.031

45. Role of electrostatic interactions in the toxicity of titanium dioxide nanoparticles toward Escherichia coli

Author:
Christophe Pagnout; Stéphane Jomini; Mandeep Dadhwal; Céline Caillet; Fabien Thomas; Pascale Bauda
Source:
Colloids and surfaces 2012 v.92 no. pp. 315-321
ISSN:
0927-7765
Subject:
Escherichia coli; bacteria; calcium chloride; cell viability; colloids; ecosystems; electrolytes; electrostatic interactions; environmental impact; ionic strength; nanoparticles; pH; sodium chloride; sodium sulfate; titanium dioxide; toxicity
Abstract:
... The increasing production and use of titanium dioxide nanoparticles (NP-TiO₂) has led to concerns about their possible impact on the environment. Bacteria play crucial roles in ecosystem processes and may be subject to the toxicity of these nanoparticles. In this study, we showed that at low ionic strength, the cell viability of Escherichia coli was more severely affected at pH 5.5 than at pH 7.0 ...
DOI:
10.1016/j.colsurfb.2011.12.012

46. Simultaneous in situ synthesis of nano silver and wool fiber fineness enhancement using sulphur based reducing agents

Author:
M. Hosseinkhani; M. Montazer; S. Eskandarnejad; M.K. Rahimi
Source:
Colloids and surfaces 2012 v.415 no. pp. 431-438
ISSN:
0927-7757
Subject:
Escherichia coli; Fourier transform infrared spectroscopy; Gram-negative bacteria; Staphylococcus aureus; X-ray diffraction; antibacterial properties; colloids; energy-dispersive X-ray analysis; fineness; nanoparticles; nanosilver; protein structure; reducing agents; scanning electron microscopy; silver; silver nitrate; sulfur; tensile strength; wool; yarns
Abstract:
... Due to the special properties of nano particles for applications in textile processing and concern of wool fineness, a novel method is introduced in this research to modify the coarse wool fineness along with synthesis of nano silver to impart antibacterial properties on wool. Moreover, two diverse reducing agents with various concentrations are employed with different concentrations of silver nit ...
DOI:
10.1016/j.colsurfa.2012.09.009

47. Smart copper oxide nanocrystals: Synthesis, characterization, electrochemical and potent antibacterial activity

Author:
M. Shamshi Hassan; Touseef Amna; O-Bong Yang; Mohamed H. El-Newehy; Salem S. Al-Deyab; Myung-Seob Khil
Source:
Colloids and surfaces 2012 v.97 no. pp. 201-206
ISSN:
0927-7765
Subject:
Escherichia coli; X-ray diffraction; acetates; antibacterial properties; capacitance; cell death; cell walls; colloids; cupric oxide; electrochemistry; electrodes; energy-dispersive X-ray analysis; minimum inhibitory concentration; nanocrystals; physicochemical properties; spectroscopy; transmission electron microscopy
Abstract:
... We report herein the synthesis and characterization of novel CuO nanocrystals and their electrochemical and potent antibacterial activity. The utilized CuO nanocrystals were prepared by wet chemical method using copper acetate and hexamethylenetetramine (HMTA) as precursors. The physicochemical properties of the synthesized CuO nanocrystals having size ∼6nm were determined by X-ray diffractometer ...
DOI:
10.1016/j.colsurfb.2012.04.032

48. Studies on antibacterial activity of ZnO nanoparticles by ROS induced lipid peroxidation

Author:
R.K. Dutta; Bhavani P. Nenavathu; Mahesh K. Gangishetty; A.V.R. Reddy
Source:
Colloids and surfaces 2012 v.94 no. pp. 143-150
ISSN:
0927-7765
Subject:
Escherichia coli; antibacterial properties; colloids; culture media; histidine; lipid peroxidation; malondialdehyde; nanoparticles; scanning electron microscopy; thiobarbituric acid-reactive substances; transmission electron microscopy; zinc oxide
Abstract:
... Recent studies indicated the role of ROS toward antibacterial activity. In our study we report ROS mediated membrane lipid oxidation of Escherichia coli treated with ZnO nanoparticles (NPs) as supported by detection and spectrophotometric measurement of malondialdehyde (MDA) by TBARS (thiobarbituric acid-reactive species) assay. The antibacterial effects of ZnO NPs were studied by measuring the gr ...
DOI:
10.1016/j.colsurfb.2012.01.046

49. Surface-quaternized chitosan particles as an alternative and effective organic antibacterial material

Author:
Oraphan Wiarachai; Nuttha Thongchul; Suda Kiatkamjornwong; Voravee P. Hoven
Source:
Colloids and surfaces 2012 v.92 no. pp. 121-129
ISSN:
0927-7765
Subject:
Escherichia coli; Fourier transform infrared spectroscopy; Gram-negative bacteria; Gram-positive bacteria; Staphylococcus aureus; antibacterial properties; cell viability; chitosan; colloids; crosslinking; growth models; medical equipment; methylation; minimum inhibitory concentration; nuclear magnetic resonance spectroscopy; pH; surface area; textile industry; transmission electron microscopy; tripolyphosphates
Abstract:
... Taking advantage of the large surface area that is covered with permanent positive charges of quaternary ammonium entities, this research aimed to develop environmentally friendly, organic antibacterial material from quaternized chitosan particles that may be applicable for biomedical devices, health and textile industries. The particles were formulated by ionic crosslinking of chitosan with tripo ...
DOI:
10.1016/j.colsurfb.2011.11.034

50. Synthesis of ZnO nanoparticles using PS-b-PAA reverse micelle cores for UV protective, self-cleaning and antibacterial textile applications

Author:
Burçin Acar Çakır; Leyla Budama; Önder Topel; Numan Hoda
Source:
Colloids and surfaces 2012 v.414 no. pp. 132-139
ISSN:
0927-7757
Subject:
micelles; Staphylococcus aureus; X-ray diffraction; Escherichia coli; polymerization; methylene blue; colloids; zinc oxide; transmission electron microscopy; fabrics; composite polymers; nanoparticles; photocatalysts; antibacterial properties
Abstract:
... Zinc oxide (ZnO) nanoparticles have been synthesized in reverse micelle cores of PS(10912)-b-PAA(3638) copolymer synthesized by atom transfer radical polymerization (ATRP) at various precursor:copolymer ratios. The size and morphology of nano ZnO particles have been characterized via TEM and XRD measurements. The average size of nano ZnO particles were determined as 25±6, 21±4 and 22±6nm for Zn⁺²: ...
DOI:
10.1016/j.colsurfa.2012.08.015