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- Author:
- Varun Kumar; Ridhima Wadhwa; Nitesh Kumar; Pawan Kumar Maurya
- Source:
- 3 Biotech 2019 v.9 no.1 pp. 7
- ISSN:
- 2190-572X
- Subject:
- Camellia sinensis; Escherichia coli; Staphylococcus aureus; absorbance; ambient temperature; antibacterial properties; aqueous solutions; catalysts; chemical reduction; enzymes; green tea; industry; leaves; light scattering; methylene blue; microorganisms; nanosilver; photocatalysis; plant extracts; reducing agents; scanning electron microscopy; ultraviolet-visible spectroscopy; virulent strains; water purification
- Abstract:
- ... Silver nanoparticles (AgNPs) are amongst the most fascinating nanomaterials which have been extensively synthesized by chemical reduction and biological method using enzymes, microorganisms and plant extracts. In our study, an aqueous extract of green tea was used as a stabilizing and reducing agent for AgNPs synthesis. The synthesized AgNPs were characterized by dynamic light scattering, UV–visib ...
- DOI:
- 10.1007/s13205-018-1544-0
- PubMed:
- 30622845
- PubMed Central:
- PMC6312826
- https://doi.org/10.1007/s13205-018-1544-0
- 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:
- Matej Bračič; Lourdes Pérez; Rosa Infante Martinez-Pardo; Ksenija Kogej; Silvo Hribernik; Olivera Šauperl; Lidija Fras Zemljič
- Source:
- Cellulose 2014 v.21 no.4 pp. 2647-2663
- ISSN:
- 0969-0239
- Subject:
- Candida glabrata; Staphylococcus aureus; biopolymers; scanning electron microscopy; reflectance; aqueous solutions; turbidity; cellulose; Kjeldahl method; Fourier transform infrared spectroscopy; Streptococcus agalactiae; Escherichia coli; antimicrobial properties; Candida albicans; lysine; medicine; coatings; hyaluronic acid; nitrogen; binding sites; pH; viscose
- Abstract:
- ... In this investigation, a novel coating for viscose fabric surface modification was developed using a synergistic formulation between a natural antimicrobial cationic surfactant from lysine (MKM) and a biopolymer hyaluronic acid (HA). The interaction between MKM and HA in aqueous solutions, as well as the interactions between their synergistic formulation (HA-MKM) and viscose fabric (CV) were studi ...
- DOI:
- 10.1007/s10570-014-0338-8
- https://doi.org/10.1007/s10570-014-0338-8
- Author:
- Santosh Kumar; P.K. Dutta; Joonseok Koh
- Source:
- International journal of biological macromolecules 2011 v.49 no.3 pp. 356-361
- ISSN:
- 0141-8130
- Subject:
- Candida albicans; Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray diffraction; acetic acid; anti-infective agents; anti-infective properties; aqueous solutions; bacteria; chitosan; crosslinking; hydrocolloids; photoluminescence; scanning electron microscopy; screening; solvents; thermal stability; thermogravimetry
- Abstract:
- ... This paper describes an elegant cross-linking technique for the preparation of chitosan–chloroquinoline derivative by using a greener technique. Chitosan solution in aqueous acetic acid was treated with 2-chloroquinoline-3-carbaldehyde solution to form hydrogel; the resulting hydrogel was subjected to solvent exchange. Combining the results of FTIR and XRD confirmed that 2-chloroquinoline-3-carbal ...
- DOI:
- 10.1016/j.ijbiomac.2011.05.017
- https://doi.org/10.1016/j.ijbiomac.2011.05.017
- 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
- https://doi.org/10.1016/j.colsurfb.2012.03.009
6. Alkyne functionalized cellulose fibers: A versatile “clickable” platform for antibacterial materials
- Author:
- Lijian Sun; Guifa Xiao; Xueren Qian; Xianhui An
- Source:
- Carbohydrate polymers 2019 v.207 pp. 68-78
- ISSN:
- 0144-8617
- Subject:
- Escherichia coli; Staphylococcus aureus; alkynes; aniline; antibacterial properties; aqueous solutions; beta-cyclodextrin; cellulosic fibers; ciprofloxacin; composite polymers; copolymerization; oxidation
- Abstract:
- ... We report a facile and effective method to fabricate clickable alkyne-functionalized cellulose fibers (ACFs) through in situ chemical oxidation copolymerization of 3-ethynylaniline and aniline under acidic aqueous solution. The effects of process variables on copolymer deposition onto CFs were investigated and suitable preparation conditions were identified. It was found that aniline significantly ...
- DOI:
- 10.1016/j.carbpol.2018.11.068
- https://doi.org/10.1016/j.carbpol.2018.11.068
- Author:
- Brandrick, Angela M.; Newton, J.M.; Henderson, G.; Vickers, J.A.
- Source:
- Journal of applied microbiology 1967 v.30 no.3 pp. 484-487
- ISSN:
- 1364-5072
- Subject:
- Escherichia coli; Staphylococcus aureus; aqueous solutions; bacteria; iodine
- Abstract:
- ... The interaction between aqueous solutions of radioactive iodine (¹³¹I) and washed suspensions of Escherichia coli and Staphylococcus aureus has been investigated. The conditions of the experiments were such that the bacteria were killed and no free iodine remained. Most of the iodine reacted with the bacteria by an oxidation-reduction process, but halogenation also took place. ...
- DOI:
- 10.1111/j.1365-2672.1967.tb00325.x
- https://doi.org/10.1111/j.1365-2672.1967.tb00325.x
- Author:
- G. Gozzelino; D. E. Romero Romero Tobar; N. Chaitiemwong; W. Hazeleger; R. Beumer
- Source:
- Journal of food protection 2011 v.74 no.12 pp. 2107-2112
- ISSN:
- 0362-028X
- Subject:
- Escherichia coli; Listeria monocytogenes; Staphylococcus aureus; ammonium; antibacterial properties; aqueous solutions; bacteria; biocides; carbon; coatings; copolymerization; crosslinking; leaching; moieties; polymers; quaternary ammonium compounds; resins; stainless steel; ultraviolet radiation; urethane
- Abstract:
- ... Antibacterial polymers suitable for coating applications without leaching of the biocidal component have been obtained by UV copolymerization of acrylic resins with acrylic monomers containing quaternary ammonium moieties. Suitable reactive biocides, based on quaternary ammonium monomers (QAMs), endowed with undecylacryloyl group and alkyl chains with 2 (QAM-C2), 8 (QAM-C8), and 16 (QAM-C16) carbo ...
- DOI:
- 10.4315/0362-028X.JFP-11-220
- https://doi.org/10.4315/0362-028X.JFP-11-220
- Author:
- Mariya N. Agafonova; Renata R. Kazakova; Anna P. Lubina; Marina I. Zeldi; Elena V. Nikitina; Konstantin V. Balakin; Yurii G. Shtyrlin
- Source:
- Microbial pathogenesis 2020 v.142 pp. 104072
- ISSN:
- 0882-4010
- Subject:
- Escherichia coli; Staphylococcus aureus; anti-infective agents; antibacterial properties; antiseptics; aqueous solutions; bovine serum albumin; disinfectants; disinfection; efficacy testing; in vitro studies; in vivo studies; laboratory experimentation; markets; models; museums; pathogens; rats; Russia
- Abstract:
- ... Miramistin is a widely used antiseptic, disinfectant and preservative, and one of the most popular antimicrobial agents on pharmaceutical market of the Russian Federation (http://www.dsm.ru/en/news/385/). However, there is a lack of reported systematic data on antibacterial efficacy of this agent obtained in accordance with the international standards.This paper represents a systematic study of an ...
- DOI:
- 10.1016/j.micpath.2020.104072
- https://doi.org/10.1016/j.micpath.2020.104072
- Author:
- A. P. S. Ramos; L. Gaban; S. H. P. Oliveira; C. D. L. Ramos
- Source:
- Acta horticulturae 2018 v. no.1198 pp. 1-8
- ISSN:
- 0567-7572
- Subject:
- Escherichia coli; Euphorbia; Klebsiella pneumoniae; Pseudomonas aeruginosa; Saccharomyces cerevisiae; Staphylococcus aureus; anti-inflammatory activity; antibacterial properties; aqueous solutions; cytotoxicity; in vitro studies; inflammation; latex; macrophages; mice; microbial culture; phagocytosis; titration; toxicity testing; yeasts; Brazil
- Abstract:
- ... The species Synadenuium umbellatum belongs to the Euphorbiaceae family and is widely found in South America and popularly known in Brazil as “cola-nota”, “avelós”, “cancerola” or “milagrosa”. The latex collected from this plant is empirically used as an aqueous solution for treatment of several purposes including anti-inflammatory and antimicrobial properties. The objective of this study was to in ...
- DOI:
- 10.17660/ActaHortic.2018.1198.1
- https://doi.org/10.17660/ActaHortic.2018.1198.1
- Author:
- Yasir Anwar
- Source:
- International journal of biological macromolecules 2018 v.111 pp. 1140-1145
- ISSN:
- 0141-8130
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-radiation; adsorbents; adsorption; antibacterial properties; aqueous solutions; bacteria; chemical precipitation; chitosan; ions; lead; manganese oxides; microbial growth; nanocomposites; nanoparticles; scanning electron microscopy; thermogravimetry; zeta potential
- Abstract:
- ... In the current study, a facile and an eco-friendly manganese oxide nanoparticles dispersed in chitosan (CS-MnO2) nanocomposite was synthesized. A chemical precipitation method was used for the product synthesis. The product characterization was performed using various spectroscopic techniques such as X-ray scattering, scanning electron microscopy, Fourier transform infrared spectroscopy, thermogra ...
- DOI:
- 10.1016/j.ijbiomac.2018.01.096
- https://doi.org/10.1016/j.ijbiomac.2018.01.096
12. 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:
- Hassan Namazi; Mohsen Hasani; Mehdi Yadollahi
- Source:
- International journal of biological macromolecules 2019 v.126 pp. 578-584
- ISSN:
- 0141-8130
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray diffraction; aluminum chloride; anions; antibacterial properties; aqueous solutions; calcium chloride; cations; hydrogels; nanocomposites; nanoparticles; oxidation; pH; salt concentration; scanning electron microscopy; sodium chloride; starch; swelling (materials); zinc oxide
- Abstract:
- ... In this study, oxidized starch hydrogels have been fabricated, and then ZnO nanoparticles were added to swollen oxidized starch hydrogels through the in-situ process. The purpose of this work was to study the effect of ZnO nanoparticles on swelling behavior of oxidized starch hydrogels, as well as investigation their potential to be used in the antibacterial applications. The obtained results show ...
- DOI:
- 10.1016/j.ijbiomac.2018.12.242
- https://doi.org/10.1016/j.ijbiomac.2018.12.242
- 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:
- Jiao Xu; Yaping Zhang; Yuvaraja Gutha; Weijiang Zhang
- Source:
- Colloids and surfaces 2017 v.156 pp. 340-348
- ISSN:
- 0927-7765
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Gibbs free energy; Staphylococcus aureus; X-ray diffraction; adsorbents; adsorption; alcohols; antibacterial properties; aqueous solutions; biocompatibility; chitosan; colloids; copper; endothermy; enthalpy; entropy; ions; models; pH; polyvinyl alcohol; scanning electron microscopy; sorption isotherms; temperature; transmission electron microscopy; zinc oxide
- Abstract:
- ... The feasibility of using chitosan/Poly(vinyl alcohol)/ZnO beads (CS/PVA/ZnO) as an adsorbent for removal of Cu(II) ions from aqueous solutions was studied in a batch method. The developed adsorbent material was characterized by XRD, FTIR, SEM and TEM analysis. Pure ZnO shows the characteristic peaks at (100), (002), (101), (102), (110), (103), (200) and (112) that were in good agreement with wurtz ...
- DOI:
- 10.1016/j.colsurfb.2017.05.028
- https://doi.org/10.1016/j.colsurfb.2017.05.028
- Author:
- Mengting Lin; Haiyue Long; Minting Liang; Bin Chu; Zhe Ren; Pengjun Zhou; Chaoxi Wu; Zhong Liu; Yifei Wang
- Source:
- ACS applied materials & interfaces 2021 v.13 no.31 pp. 36747-36756
- ISSN:
- 1944-8252
- Subject:
- Escherichia coli; Staphylococcus aureus; aqueous solutions; curdlan; dimethyl sulfoxide; exopolysaccharides; fibroblasts; gene expression; hydrogels; immunomodulation; lipopolysaccharides; macrophages; mechanical stress; models; nanofibers; nanosilver; water content; wound treatment
- Abstract:
- ... The bacterial exopolysaccharide Curdlan has a unique collagen-like triple helical structure and immune-modulation activities. Although there have been several types of Curdlan gels reported for antibacterial or wound healing purposes, none of them exhibit favorable mechanical properties for clinically applicable wound healing materials. Herein, we present a two-step approach for preparing Ag-embed ...
- DOI:
- 10.1021/acsami.1c06603
- https://doi.org/10.1021/acsami.1c06603
- Author:
- Jin Feng; Qingshan Shi; Wenru Li; Xiulin Shu; Aimei Chen; Xiaobao Xie; Xiaomo Huang
- Source:
- Cellulose 2014 v.21 no.6 pp. 4557-4567
- ISSN:
- 0969-0239
- Subject:
- Escherichia coli; Staphylococcus aureus; antibacterial properties; aqueous solutions; cellulose; ion exchange; ions; nanosilver; oxidation; silver; silver nitrate; sodium; sodium citrate
- Abstract:
- ... In order to improve the antimicrobial activity of bacterial cellulose (BC), the silver nanoparticles (Ag NPs) were in situ fabricated on the BC membranes, affording BC and Ag hybrid antimicrobial materials, BC + Ag, which possesses excellent antimicrobial performance. Typically, carboxyl groups were firstly introduced into BC by TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl radical)-mediated oxidati ...
- DOI:
- 10.1007/s10570-014-0449-2
- https://doi.org/10.1007/s10570-014-0449-2
- Author:
- Maksym Tatariants; Samy Yousef; Sandra Sakalauskaitė; Rimantas Daugelavičius; Gintaras Denafas; Regita Bendikiene
- Source:
- Waste management 2018 v.78 pp. 521-531
- ISSN:
- 0956-053X
- Subject:
- Escherichia coli; Raman spectroscopy; Staphylococcus aureus; X-ray diffraction; antibacterial properties; aqueous solutions; chemical reduction; computer hardware; copper; copper nanoparticles; copper sulfate; cyclodextrins; electronic wastes; energy-dispersive X-ray analysis; mining; raw materials; recycling; risk; scanning electron microscopy; stabilizers; thermogravimetry; transmission electron microscopy; ultrasonic treatment
- Abstract:
- ... Waste Printed Circuit Boards (WPCBs) were classified as one of the most important resources for urban mining containing high purity Copper (Cu) and other valuable materials. Recently, a dissolution recycling approach enhanced by ultrasonic treatment succeeded in the liberation of Cu foils from WPCBs as received. This research aims to synthesize Copper Nanoparticles (Cu-NPs) from the recovered Cu b ...
- DOI:
- 10.1016/j.wasman.2018.06.016
- https://doi.org/10.1016/j.wasman.2018.06.016
- Author:
- Lifeng Zhang; Jie Luo; Todd J. Menkhaus; Hemanthram Varadaraju; Yuyu Sun; Hao Fong
- Source:
- Journal of membrane science 2011 v.369 no.1-2 pp. 499-505
- ISSN:
- 0376-7388
- Subject:
- Escherichia coli; Staphylococcus aureus; air; aqueous solutions; artificial membranes; cost effectiveness; filtration; hydroxylamine; ions; microorganisms; nanofibers; nanosilver; permeability; polyacrylonitrile; potassium bromide; silver; silver nitrate
- Abstract:
- ... In this study, polyacrylonitrile (PAN) nano-fibrous membranes with fiber diameters of ∼450nm were prepared by the technique of electrospinning; amidoxime nano-fibrous membranes were then prepared through treatment of PAN nano-fibrous membranes in hydroxylamine (NH₂OH) aqueous solution. The –CN groups on the surface of PAN nanofibers reacted with NH₂OH molecules and led to the formation of –C(NH₂)N ...
- DOI:
- 10.1016/j.memsci.2010.12.032
- https://doi.org/10.1016/j.memsci.2010.12.032
- Author:
- Daewon Park; Alyssa M. Larson; Alexander M. Klibanov; Yadong Wang
- Source:
- Applied biochemistry and biotechnology 2013 v.169 no.4 pp. 1134-1146
- ISSN:
- 0273-2289
- Subject:
- Enterovirus C; Staphylococcus aureus; aqueous solutions; Escherichia coli; polyurethanes; antibacterial properties
- Abstract:
- ... We have prepared and characterized a new polyurethane-based antimicrobial material, N,N-dodecyl,methyl-polyurethane (Quat-12-PU). It exhibits strong antiviral and antibacterial activities when coated (as an organic solution or an aqueous nanosuspension) onto surfaces and antibacterial activity when electrospun into nanofibers. Quat-12-PU surfaces are able to kill airborne Gram-positive Staphylococ ...
- DOI:
- 10.1007/s12010-012-9999-7
- PubMed:
- 23306899
- https://doi.org/10.1007/s12010-012-9999-7
- Author:
- Guangyu Zhang; Yan Liu; Hideaki Morikawa; Yuyue Chen
- Source:
- Cellulose 2013 v.20 no.4 pp. 1877-1884
- ISSN:
- 0969-0239
- Subject:
- Escherichia coli; Staphylococcus aureus; X-radiation; antibacterial properties; aqueous solutions; bamboos; dodecanoic acid; fabrics; nanoparticles; polymers; pulp; scanning electron microscopy; spectroscopy; transmission electron microscopy
- Abstract:
- ... Hyperbranched polymer HSDA was synthesized from methyl acrylate, tetraethylenepentamine, and dodecanoic acid by melt polycondensation. ZnO nanoparticle colloidal solution was prepared in one step by mixing Zn(NO₃)₂and HSDA aqueous solution under hydrothermal condition. The results of transmission electron microscopy and ultraviolet–visible (UV–Vis) spectroscopy indicated that ZnO nanoparticles wer ...
- DOI:
- 10.1007/s10570-013-9979-2
- https://doi.org/10.1007/s10570-013-9979-2
- 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. Anand; C. Tiloke; A. Phulukdaree; B. Ranjan; A. Chuturgoon; S. Singh; R.M. Gengan
- Source:
- Journal of photochemistry and photobiology 2016 v.165 pp. 87-95
- ISSN:
- 1011-1344
- Subject:
- Artemia; Bacillus cereus; Candida albicans; Candida utilis; Enterococcus faecalis; Escherichia coli; Fourier transform infrared spectroscopy; Moringa oleifera; Staphylococcus aureus; acetates; agroforestry; antibacterial properties; aqueous solutions; biomass; biosynthesis; biphenyl; catalysts; cell lines; cell viability; chemical composition; chemical reactions; color; cytotoxicity; death; effluents; energy-dispersive X-ray analysis; flowers; gas chromatography-mass spectrometry; humans; lung neoplasms; lymphocytes; methylene blue; nanoparticles; neoplasm cells; p-nitrophenol; palladium; scanning electron microscopy; toxicity testing; transmission electron microscopy; ultraviolet-visible spectroscopy; viability assays
- Abstract:
- ... The biosynthesis of nanostructured biopalladium nanoparticles (PdNPs) from an aqueous solution of crystalline palladium acetate is reported. For the synthesised PdNPs in solution, an agroforest biomass waste petal of Moringa oleifera derived bis-phthalate was used as natural reducing and biocapping agents. Continuous absorption in the UV region and subsequent brown colour change confirmed the form ...
- DOI:
- 10.1016/j.jphotobiol.2016.09.039
- https://doi.org/10.1016/j.jphotobiol.2016.09.039
- 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:
- Muhammad Idrees; Saima Batool; Tanzila Kalsoom; Sadaf Raina; Hafiz Muhammad Adeel Sharif; Summera Yasmeen
- Source:
- Environmental technology 2019 v.40 no.8 pp. 1071-1078
- ISSN:
- 1479-487X
- Subject:
- Enterococcus faecalis; Escherichia coli; Sida acuta; Staphylococcus aureus; X-ray diffraction; absorbance; absorption; antibacterial properties; antibiotics; aqueous solutions; biofabrication; biosynthesis; corrosion; ecosystems; environmental technology; irradiation; leaves; moieties; nanoparticles; nanosilver; silver nitrate; spectrophotometers; surface plasmon resonance; transmission electron microscopy
- Abstract:
- ... Nanotechnology exhibits a multidisciplinary area and gained interests for researchers. Nanoparticles produced via physical and chemical methods affects ecosystem drastically. Green synthesis is the charming technique that is inexpensive and safe for the environment. This study aimed to explore the antibacterial actions of as-synthesized silver nanoparticles (Ag-NPs) against Escherichia coli, Staph ...
- DOI:
- 10.1080/09593330.2018.1435738
- https://doi.org/10.1080/09593330.2018.1435738
- Author:
- Longzhan Gan; Shuai Zhang; Yi Zhang; Shuang He; Yongqiang Tian
- Source:
- Preparative biochemistry & biotechnology 2018 v.48 no.7 pp. 582-588
- ISSN:
- 1532-2297
- Subject:
- Bacillus endophyticus; Candida albicans; Escherichia coli; Fourier transform infrared spectroscopy; Salmonella Typhi; Staphylococcus aureus; X-ray diffraction; ambient temperature; antimicrobial properties; aqueous solutions; atomic force microscopy; bacteria; biosynthesis; extremophiles; habitats; hypersalinity; nanosilver; particle size; research programs; ribosomal RNA; salt tolerance; sequence analysis; storage temperature; transmission electron microscopy; ultraviolet-visible spectroscopy
- Abstract:
- ... We have conducted a thorough study on extracellular biosynthesis of silver nanoparticles (AgNPs) by a halotolerant bacterium Bacillus endophyticus SCU-L, which was identified by 16S rRNA gene sequencing analysis. This strain was selected during an ongoing research programme aimed at finding a novel biological method for green nanosynthetic routes using the extremophiles in unexplored hypersaline h ...
- DOI:
- 10.1080/10826068.2018.1476880
- https://doi.org/10.1080/10826068.2018.1476880
- Author:
- K. Jeeva; M. Thiyagarajan; V. Elangovan; N. Geetha; P. Venkatachalam
- Source:
- Industrial crops and products 2014 v.52 pp. 714-720
- ISSN:
- 0926-6690
- Subject:
- Caesalpinia coriaria; Escherichia coli; Fourier transform infrared spectroscopy; Klebsiella pneumoniae; Pseudomonas aeruginosa; Staphylococcus aureus; X-ray diffraction; antibacterial properties; aqueous solutions; biochemical compounds; biosynthesis; cosmetics; crystal structure; energy-dispersive X-ray analysis; humans; ions; leaf extracts; multiple drug resistance; nanomedicine; nanosilver; pathogens; rapid methods; reducing agents; scanning electron microscopy; silver; silver nitrate; surface plasmon resonance; tannins; topography
- Abstract:
- ... A rapid method for synthesis of silver nanoparticles using the leaf extracts of Caesalpinia coriaria that has high level of tannin contents is reported. For leaf extracts preparation, two methods were adopted and compared with their extracellular synthesis of metallic silver nanoparticles. Stable silver nanoparticles produced by treating an aqueous solution of AgNO3 (5mM) with the leaf extracts as ...
- DOI:
- 10.1016/j.indcrop.2013.11.037
- https://doi.org/10.1016/j.indcrop.2013.11.037
- Author:
- Wang Haiye; Jasensky Joshua; Ulrich Nathan W.; Cheng Junjie; Huang Hao; Chen Zhan; He Chunju
- Source:
- Langmuir 2017 v.33 no.47 pp. 13689-13698
- ISSN:
- 1520-5827
- Subject:
- Escherichia coli; Phaeodactylum tricornutum; Staphylococcus aureus; antibacterial properties; aquatic organisms; aqueous solutions; bacteria; coatings; crosslinking; deuterium oxide; hydrophilicity; hydrophobicity; polyethylene glycol; soaking; spectroscopy
- Abstract:
- ... Novel photocurable ternary polymer networks were prepared by incorporating N-(4-hydroxy-3-methoxybenzyl)-acrylamide (HMBA) into a cross-linked thiol–ene network based on poly(ethylene glycol)diacrylate (PEGDA) and (mercaptopropyl)methylsiloxane homopolymers (MSHP). The ternary network materials displayed bactericidal activity against Escherichia coli and Staphylococcus aureus and reduced the attac ...
- DOI:
- 10.1021/acs.langmuir.7b03098
- https://doi.org/10.1021/acs.langmuir.7b03098
- Author:
- Shengnan Liang; Qifeng Dang; Chengsheng Liu; Yubei Zhang; Yan Wang; Wenjing Zhu; Guozhu Chang; Hantian Sun; Dongsu Cha; Bing Fan
- Source:
- Carbohydrate polymers 2018 v.195 pp. 275-287
- ISSN:
- 0144-8617
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Klebsiella pneumoniae; Pseudomonas aeruginosa; Staphylococcus aureus; Staphylococcus epidermidis; X-ray diffraction; antibacterial properties; antibiotics; aqueous solutions; bacteria; chitin; crystal structure; differential thermal analysis; hydrophobicity; membrane permeability; moieties; molecular weight; nuclear magnetic resonance spectroscopy; nucleic acids; pH; polymerization; solubility; thermal stability; thermogravimetry
- Abstract:
- ... This work aims to synthesize poly(aminoethyl) modified chitin (PAEMC) and ascertain its antibacterial activity and mechanism. FTIR and 1H NMR results proved aminoethyl moieties were grafted to C6OH and C3OH on chitin backbone in the form of polymerization. XRD and TG/DTG analyses manifested its well-defined crystallinity and thermostability. PAEMC, with average molecular weight (MW) of 851.0 kDa, ...
- DOI:
- 10.1016/j.carbpol.2018.04.109
- https://doi.org/10.1016/j.carbpol.2018.04.109
- Author:
- Jia Hao-Ran; Zhu Ya-Xuan; Chen Zhan; Wu Fu-Gen
- Source:
- ACS Applied Materials & Interfaces 2017 v.9 no.19 pp. 15943-15951
- ISSN:
- 1944-8252
- Subject:
- Escherichia coli; Gram-negative bacteria; Gram-positive bacteria; Staphylococcus aureus; aqueous solutions; bacterial infections; chemical elements; cholesterol; cytotoxicity; engineering; fluorescence; hydrophobicity; irradiation; mammals; multiple drug resistance; nanoparticles; photochemotherapy; photosensitizing agents; polyethylene glycol; protoporphyrin; singlet oxygen; white light
- Abstract:
- ... Antibacterial photodynamic therapy (PDT), which enables effective killing of regular and multidrug-resistant (MDR) bacteria, is a promising treatment modality for bacterial infection. However, because most photosensitizer (PS) molecules fail to strongly interact with the surface of Gram-negative bacteria, this technique is suitable for treating only Gram-positive bacterial infection, which largely ...
- DOI:
- 10.1021/acsami.7b02562
- https://doi.org/10.1021/acsami.7b02562
- Author:
- X.‐F. Xia; Y. Li; X.‐Q. Yu; J.‐H. Lin; S.‐Y. Li; Q. Li; M.‐S. You
- Source:
- Insect molecular biology 2017 v.26 no.5 pp. 564-573
- ISSN:
- 0962-1075
- Subject:
- Escherichia coli; Plutella xylostella; Staphylococcus aureus; antimicrobial peptides; antimicrobial properties; aqueous solutions; circular dichroism spectroscopy; complementary DNA; immune response; innate immunity; insects; microbial growth; pests; scanning electron microscopy; vegetables
- Abstract:
- ... Antimicrobial peptides (AMPs) are small‐molecule peptides that play crucial roles in insect innate immune responses. To better understand the function of AMPs in Plutella xylostella, one of the main pests of cruciferous vegetables, three full‐length cDNAs encoding moricins were cloned from Pl. xylostella. Two variants of the moricin named PxMor2 and PxMor3 were heterologously expressed and purifie ...
- DOI:
- 10.1111/imb.12319
- https://doi.org/10.1111/imb.12319
- Author:
- Binaymotlagh Roya; Farrokhpour Hossein; Hadadzadeh Hassan; Mirahmadi-Zare Seyede Zohreh; Amirghofran Zahra
- Source:
- The Journal of Physical Chemistry C 2017 v.121 no.15 pp. 8589-8600
- ISSN:
- 1932-7455
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; T-lymphocytes; adsorption; anions; antibacterial properties; antineoplastic activity; aqueous solutions; binding sites; cytotoxicity; fluorescence; foil; gold; inhibitory concentration 50; nanogold; nitrogen; oxygen; pathogens; spectral analysis; sulfur dioxide; transmission electron microscopy
- Abstract:
- ... Gold nanoparticle–piroxicam anion conjugates (Au NP–Pir) were synthesized in a green method using laser ablation of a gold foil in an aqueous solution of anionic piroxicam (NaPir). The produced Au NP–Pir conjugates were characterized by different spectroscopic techniques and transmission electron microscopy. The fluorescence and absorption spectra of Au NP–Pir colloidal solution were recorded at d ...
- DOI:
- 10.1021/acs.jpcc.6b12962
- https://doi.org/10.1021/acs.jpcc.6b12962
- 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:
- Débora P. Facchi; Suelen P. Facchi; Paulo R. Souza; Elton G. Bonafé; Ketul C. Popat; Matt J. Kipper; Alessandro F. Martins
- Source:
- Journal of membrane science 2022 v.650 pp. 120426
- ISSN:
- 0376-7388
- Subject:
- Escherichia coli; Staphylococcus aureus; aqueous solutions; biodegradability; chloroform; contact angle; droplets; electrical conductivity; filtration; formic acid; hydrophobicity; modulus of elasticity; nanosilver; polysorbates; silver; surface tension; viscosity
- Abstract:
- ... Ecovio® is a hydrophobic, biodegradable, and synthetic polymer blend composed of poly(butylene adipate-co-terephthalate) and poly(acid lactic) polyesters. It is soluble in solvents of low polarity, being a challenge to obtaining thin and homogeneous electrospun Ecovio® fibers. Ecovio® blend solutions do not have electrospinnability due to the low viscosity and electrical conductivity. For overcomi ...
- DOI:
- 10.1016/j.memsci.2022.120426
- https://doi.org/10.1016/j.memsci.2022.120426
- 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:
- Panghu Zhou; Zunen Xia; Chao Qi; Meng He; Tengbo Yu; Lei Shi
- Source:
- International journal of biological macromolecules 2021 v.192 pp. 272-277
- ISSN:
- 0141-8130
- Subject:
- Escherichia coli; Staphylococcus aureus; X-ray diffraction; antibacterial properties; aqueous solutions; chitosan; freeze drying; hydrogels; industrialization; nanocomposites; nanosilver; water vapor
- Abstract:
- ... Chitosan/Ag nanocomposite sponges were prepared by soaking the chitosan hydrogels in AgNO₃ aqueous solution, which was heated at 80 °C to synthesize Ag nanoparticles (AgNPs) in the porous chitosan matrix and freeze-dried. The structure and properties of the nanocomposite sponges were characterized by FT-IR, X-ray diffraction (XRD), scanning electron microscopy (SEM), and compressive testing. In ou ...
- DOI:
- 10.1016/j.ijbiomac.2021.10.011
- https://doi.org/10.1016/j.ijbiomac.2021.10.011
- 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:
- Antonio Zuorro; Marco Fidaleo; Marcello Fidaleo; Roberto Lavecchia
- Source:
- Journal of environmental management 2014 v.133 pp. 302-308
- ISSN:
- 0301-4797
- Subject:
- Escherichia coli; Staphylococcus aureus; antibacterial properties; antibiotic resistance; aqueous solutions; chloramphenicol; hydrogen peroxide; light intensity; response surface methodology; risk; ultraviolet radiation
- Abstract:
- ... The efficacy of the UV/H2O2 process to degrade the antibiotic chloramphenicol (CHL) was investigated at 20 °C using a low-pressure mercury lamp as UV source. A preliminary analysis of CHL degradation showed that the process followed apparent first-order kinetics and that an optimum H2O2 concentration existed for the degradation rate. The first-order rate constant was used as the response variable ...
- DOI:
- 10.1016/j.jenvman.2013.12.012
- https://doi.org/10.1016/j.jenvman.2013.12.012
- Author:
- Xiao Wang; Ran Li; Zian Li; Ruijuan Xiao; Xiao-Bo Chen; Tao Zhang
- Source:
- Journal of materials chemistry B 2019 v.7 no.26 pp. 4169-4176
- ISSN:
- 2050-7518
- Subject:
- Escherichia coli; Staphylococcus aureus; air; alloys; antibacterial properties; aqueous solutions; bacterial growth; copper; glass; ions; ligaments; magnesium; minimum inhibitory concentration; nanopores; oxidation; silver; sulfuric acid; surface area
- Abstract:
- ... Three-dimensional nanoporous Ag–Cu alloys with an atomic ratio of Ag to Cu varying from 0 to 1.0 were fabricated by dealloying Mg–(Ag,Cu)–Y metallic glass precursors in 0.04 M H₂SO₄ aqueous solution. Supersaturated Ag(Cu) solid solution in the nanoporous structure was obtained with a high Cu concentration (up to 47.4%) in the fcc Ag phase after the dealloying treatment. The nanoporous alloys with ...
- DOI:
- 10.1039/c9tb00148d
- https://doi.org/10.1039/c9tb00148d
- Author:
- Zhiwen Qi; Xingying Xue; Xuefeng Xu; Hao Zhou; Wenjun Li; Guliang Yang; Pujun Xie
- Source:
- Postharvest biology and technology 2022 v.188 pp. 111891
- ISSN:
- 0925-5214
- Subject:
- Aspergillus niger; Escherichia coli; Staphylococcus aureus; antimicrobial properties; aqueous solutions; biosafety; carboxymethylcellulose; fresh produce; hydrophilicity; in vitro digestion; olive mill wastewater; shelf life; strawberries; toxicity; weight loss
- Abstract:
- ... The underutilized by-products of hydrophilicity olive mill wastewater phenols (OPs) have great antimicrobial potential. ZnO NPs is one of most wildly used nano material with anti-bacterial function as well. This study aimed to prepare the detoxified and antimicrobial-enhanced OPs capping ZnO nanoparticles (OPs-ZnO NPs) containing metal core of ZnO NPs and organic shell of OPs, respectively. The OP ...
- DOI:
- 10.1016/j.postharvbio.2022.111891
- https://doi.org/10.1016/j.postharvbio.2022.111891
- Author:
- Dina M. Silva; Heema Kumari Nilesh Vyas; Martina L. Sanderson-Smith; Vitor Sencadas
- Source:
- Powder technology 2018 v.330 pp. 201-209
- ISSN:
- 0032-5910
- Subject:
- Escherichia coli; Staphylococcus aureus; aqueous solutions; bioactive properties; ciprofloxacin; drug delivery systems; drugs; encapsulation; gelatin; lungs; microparticles; minimum inhibitory concentration; models; patient compliance; pharmacodynamics; pharmacokinetics; polymers; powders; spray drying; water solubility
- Abstract:
- ... Polymeric particles are a versatile class of local or systemic drug delivery systems, used to improve drugs pharmacokinetics and pharmacodynamics along with patient compliance. Herein, we report a rapid, scalable, and optimized method to encapsulate ciprofloxacin (CPx), a poor water soluble antimicrobial agent, in gelatin microparticles by single step processing via spray-drying of an aqueous solu ...
- DOI:
- 10.1016/j.powtec.2018.02.029
- https://doi.org/10.1016/j.powtec.2018.02.029
- 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:
- Eman F. Aboelfetoh; Rania A. El-Shenody; Mohamed M. Ghobara
- Source:
- Environmental monitoring and assessment 2017 v.189 no.7 pp. 349
- ISSN:
- 0167-6369
- Subject:
- Caulerpa; Escherichia coli; Fourier transform infrared spectroscopy; Pseudomonas aeruginosa; Salmonella Typhi; Shigella; Staphylococcus aureus; X-ray diffraction; algae; antibacterial properties; aqueous solutions; catalytic activity; nanosilver; pH; particle size; reaction kinetics; surface plasmon resonance; temperature; transmission electron microscopy; ultraviolet-visible spectroscopy; wastewater treatment
- Abstract:
- ... Stable colloidal silver nanoparticles (AgNPs) were synthesized using Caulerpa serrulata (green marine algae) aqueous extract as an efficient reducing and stabilizing agent. This method is considered to be a sustainable alternate to the more complicated chemical procedures. To achieve the optimization synthesis of AgNPs, several effects such as extract concentration, contact time, pH values, and te ...
- DOI:
- 10.1007/s10661-017-6033-0
- https://doi.org/10.1007/s10661-017-6033-0
- Author:
- Arun Kumar Shukla; Javed Alam; Fekri Abdulraqeb Ahmed Ali; Mansour Alhoshan
- Source:
- Water and environment journal 2021 v.35 no.2 pp. 670-684
- ISSN:
- 1747-6585
- Subject:
- Escherichia coli; Staphylococcus aureus; aqueous solutions; dyes; environment; wastewater; water
- Abstract:
- ... As a result of the involvement of pollutants in water, there is the need to develop a facile and effective membrane technology that can not only treat dyes, but also kill bacteria in wastewater. In this work, a facile strategy is proposed for the preparation of a nanostructured hybrid membrane based on Polyphenylsulfone containing different ZnO nanoparticle contents. The results confirm that ZnO n ...
- DOI:
- 10.1111/wej.12660
- https://doi.org/10.1111/wej.12660
- Author:
- Lingli Deng; Maierhaba Taxipalati; Aiping Zhang; Fei Que; Hewen Wei; Fengqin Feng; Hui Zhang
- Source:
- Journal of agricultural and food chemistry 2018 v.66 no.24 pp. 6219-6226
- ISSN:
- 1520-5118
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; antimicrobial properties; aqueous solutions; cell membranes; chitosan; contact angle; crystal structure; electrostatic interactions; fluorescence; hydrogen bonding; hydrophilicity; melting point; nanofibers; physical properties; polyethylene glycol; thermal analysis
- Abstract:
- ... In this study, chitosan/poly(ethylene oxide) (PEO)/lauric arginate (LAE) composite nanofibrous films were fabricated via electrospinning. The addition of LAE did not change the physical properties of chitosan/PEO in acetic aqueous solutions, but increased the fluorescent intensity of chitosan by electrostatic interactions, resulting in uniform and bead-free nanofibers with an average diameter of 1 ...
- DOI:
- 10.1021/acs.jafc.8b01493
- https://doi.org/10.1021/acs.jafc.8b01493
- Author:
- Hanen Chakroun; Mohamed Bouaziz; Thabèt Yangui; Imen Blibech; Abdelhafidh Dhouib; Sami Sayadi
- Source:
- Journal of Molecular Catalysis. B, Enzymatic 2013 v.87 pp. 11-17
- ISSN:
- 1381-1177
- Subject:
- Enterococcus hirae; Escherichia coli; Pseudomonas aeruginosa; Staphylococcus aureus; Trametes trogii; Tuta absoluta; antifungal properties; aqueous solutions; carbon; catalytic activity; enzymatic reactions; insecticidal properties; insects; laccase; nuclear magnetic resonance spectroscopy; pests; phytotoxicity; stable isotopes; tomatoes; viability
- Abstract:
- ... Oxidative transformation of tyrosol catalysed by Trametes trogii laccases in aqueous solution was investigated. LC–MS analysis shows that tyrosol was converted to its dimer. The enzymatic reaction was also investigated by 1H and 13C nuclear magnetic resonance, and the product formed was identified as a dimeric tetracyclic ketone. The bactericidal and fungicidal properties of tyrosol dimer were inv ...
- DOI:
- 10.1016/j.molcatb.2012.10.006
- https://doi.org/10.1016/j.molcatb.2012.10.006
- Author:
- Jing Kong; Sufen Zhang; Ming Shen; Jingui Zhang; Sabesan Yoganathan
- Source:
- Colloids and surfaces 2022 v.643 pp. 128742
- ISSN:
- 0927-7757
- Subject:
- Escherichia coli; Staphylococcus aureus; X-ray diffraction; antibacterial properties; antibiotic resistance; aqueous solutions; copper; cuprous oxide; energy-dispersive X-ray analysis; nanocomposites; transmission electron microscopy; viability; zinc oxide
- Abstract:
- ... Antibiotic resistance is a serious problem all over the world. Inorganic metal oxide nanoparticles are suitable substitutional treatments for organic antibiotic-resistant bacterial infections. Various copper dopped ZnO nanocomposites were prepared with chemical deposition method in aqueous solution. X-ray diffraction (XRD) coupled with energy dispersive spectroscopy results reveals that cuprous ox ...
- DOI:
- 10.1016/j.colsurfa.2022.128742
- https://doi.org/10.1016/j.colsurfa.2022.128742
- 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:
- Da Huo; Jian He; Hui Li; Haiping Yu; Tingting Shi; Yahui Feng; Zhengyang Zhou; Yong Hu
- Source:
- Colloids and Surfaces B: Biointerfaces 2014 v.117 pp. 29-35
- ISSN:
- 0927-7765
- Subject:
- Escherichia coli; Staphylococcus aureus; X-radiation; X-ray photoelectron spectroscopy; absorption; antibacterial properties; antibiotics; aqueous solutions; bacteria; blood flow; colloids; cytotoxicity; in vivo studies; nanoparticles; transmission electron microscopes; transmission electron microscopy
- Abstract:
- ... Au@Ag core–shell nanoparticles (NPs) integrating both antibacterial and X-ray attenuation capabilities were facilely synthesized in aqueous solution. These NPs modified with methoxy-PEG-SH (m-PEG) on the surface rendered them favorable dispersity and stability in water, resulting in enhancement of their blood circulation time. X-ray photoelectron spectroscope (XPS) and high-resolution transmission ...
- DOI:
- 10.1016/j.colsurfb.2014.02.008
- https://doi.org/10.1016/j.colsurfb.2014.02.008
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