Jump to Main Content
PubAg
Main content area
Search
« Previous |
1 - 20 of 110
|
Next »
Search Results
- Author:
- Ni, Zhihui; Gu, Xiuxian; He, Yali; Wang, Zhihua; Zou, Xueyan; Zhao, Yanbao; Sun, Lei
- Source:
- RSC advances 2018 v.8 no.73 pp. 41722-41730
- ISSN:
- 2046-2069
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Pseudomonas aeruginosa; Staphylococcus aureus; X-ray diffraction; absorbance; antibacterial properties; hydroxyapatite; minimum inhibitory concentration; nanocomposites; nanosilver; pH; porosity; reducing agents; scanning electron microscopy; silver; surface area; transmission electron microscopy
- Abstract:
- ... Herein, we demonstrate a facile and green rapid approach for the synthesis of uniform poriferous hydroxylapatite [Ca₁₀(PO₄)₆(OH)₂, HA] and poriferous silver nanoparticle (Ag NPs)-decorated hydroxylapatite (HA@Ag) nanocomposites with excellent antibacterial properties. All the nanocomposites were fully characterized in the solid state via various techniques such as X-ray powder diffraction (XRD), t ...
- DOI:
- 10.1039/c8ra08148d
-
http://dx.doi.org/10.1039/c8ra08148d
- Author:
- Bashiri Rezaie, Ali; Montazer, Majid; Mahmoudi Rad, Mahnaz
- Source:
- Journal of cleaner production 2018 v.204 pp. 425-436
- ISSN:
- 0959-6526
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray diffraction; color; copper; copper nanoparticles; cotton; cupric oxide; discoloration; energy-dispersive X-ray analysis; fibroblasts; humans; irradiation; methylene blue; pH; photocatalysis; reducing agents; scanning electron microscopy; solar radiation; solvents; temperature; tensile strength
- Abstract:
- ... This work proposes an environmentally low cost route for nano copper oxide functionalization of cotton in order to impart antibacterial and photocatalytic properties for the first time. This method only includes utilization of metal precursor with no additional chemicals such as reducing agent, pH adjusting, solvent and others as well as no use of physical power or high temperature and pressure co ...
- DOI:
- 10.1016/j.jclepro.2018.08.337
-
https://dx.doi.org/10.1016/j.jclepro.2018.08.337
- Author:
- Liu, Bo; Yao, Tiantian; Ren, Lixia; Zhao, Yunhui; Yuan, Xiaoyan
- Source:
- Colloids and surfaces 2018 v.172 pp. 330-337
- ISSN:
- 0927-7765
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray photoelectron spectroscopy; antibacterial properties; biocompatibility; cell viability; colloids; hemolysis; hydrophilicity; lysine; myocytes; polymerization; polypeptides; smooth muscle; valine; wettability
- Abstract:
- ... Electrospun membranes endowed with efficient bactericidal properties have been widely applied in the biomedical field. In this work, polyhedral oligomeric silsesquioxane (POSS) and i-butyl-capped polypeptides, POSS-poly(lysine-co-valine) (PKV) and i-butyl-poly(lysine-co-valine) (KV), were prepared via ring-opening polymerization of N-carboxyanhydride lysine and valine monomers. The synthetic polyp ...
- DOI:
- 10.1016/j.colsurfb.2018.08.055
-
https://dx.doi.org/10.1016/j.colsurfb.2018.08.055
- Author:
- Shahid-ul-Islam,; Butola, B.S.; Roy, Anasuya
- Source:
- International journal of biological macromolecules 2018 v.120 pp. 1999-2006
- ISSN:
- 0141-8130
- Subject:
- Camellia sinensis; Escherichia coli; Food and Drug Administration; Fourier transform infrared spectroscopy; Staphylococcus aureus; antibacterial properties; antioxidant activity; chitosan; color; cosmetics; drugs; dyeing; finishes; hydrogen bonding; industry; mordants; optical properties; polyphenols; scanning electron microscopes; scanning electron microscopy; spectral analysis; tea; thermal stability; thermogravimetry; toxicity; van der Waals forces; wool; woolen fabric
- Abstract:
- ... Chitosan is a potential renewable, versatile amino polysaccharide which has been approved by food and drug administration for use in food, cosmetics, pharmaceuticals and other industries. In order to determine if chitosan can be utilized in the development of colourful and multifunctional wool fabric without the need of toxic metal salt mordants, we have investigated the colouring, radical scaveng ...
- DOI:
- 10.1016/j.ijbiomac.2018.09.167
-
https://dx.doi.org/10.1016/j.ijbiomac.2018.09.167
- Author:
- Yin, Maoli; Lin, Xinghuan; Ren, Tian; Li, Zhiguang; Ren, Xuehong; Huang, Tung-Shi
- Source:
- International journal of biological macromolecules 2018 v.120 pp. 992-998
- ISSN:
- 0141-8130
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; adsorption; antibacterial properties; atomic force microscopy; biomedical materials; cell viability; chitosan; copper; copper sulfate; cytotoxicity; energy-dispersive X-ray analysis; nuclear magnetic resonance spectroscopy; packaging; polyvinyl alcohol; quaternary ammonium compounds; scanning electron microscopy; thermal properties
- Abstract:
- ... Antibacterial quaternized carboxymethyl chitosan/poly(vinyl alcohol)/Cu blend film (QCMCS/PVA/Cu blend film) was prepared by quaternary ammonium salt modified carboxymethyl chitosan (QCMCS), PVA and copper sulfate pentahydrate via the process of solution casting and ion adsorption. The successful preparation of QCMCS was proved by EA, NMR and FTIR, and the degree of quaternization is 71.86%. The Q ...
- DOI:
- 10.1016/j.ijbiomac.2018.08.105
-
https://dx.doi.org/10.1016/j.ijbiomac.2018.08.105
- Author:
- Lu, Shengchang; Tang, Zuwu; Li, Wenyan; Ouyang, Xinhua; Cao, Shilin; Chen, Lihui; Huang, Liulian; Wu, Hui; Ni, Yonghao
- Source:
- Cellulose 2018 v.25 no.12 pp. 7261-7275
- ISSN:
- 0969-0239
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray photoelectron spectroscopy; antimicrobial properties; cellulose; decolorization; dyes; electrostatic interactions; filtration; gel chromatography; methyl orange; models; polymerization; quaternary ammonium compounds; rhodamines; wastewater
- Abstract:
- ... In this paper, poly(diallyl dimethyl ammonium chloride) (PDADMAC)-grated cellulose filter membranes (cellulose-g-PDADMAC) were fabricated via atom transfer radical polymerization (ATRP) for selective removal of anionic dye from wastewater. Gel permeation chromatography (GPC), X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared spectroscopy (FTIR) showed that PDADMAC was grafted ...
- DOI:
- 10.1007/s10570-018-2052-4
-
http://dx.doi.org/10.1007/s10570-018-2052-4
- Author:
- Al-Dhabi, Naif Abdullah; Ghilan, Abdul-Kareem Mohammed; Arasu, Mariadhas Valan; Duraipandiyan, Veeramuthu
- Source:
- Journal of photochemistry and photobiology 2018 v.189 pp. 176-184
- ISSN:
- 1011-1344
- Subject:
- Acinetobacter baumannii; Enterococcus faecium; Escherichia coli; Fourier transform infrared spectroscopy; Gram-negative bacteria; Klebsiella pneumoniae; Proteus mirabilis; Pseudomonas aeruginosa; Staphylococcus aureus; Streptomyces; X-ray diffraction; antimicrobial properties; biosynthesis; energy-dispersive X-ray analysis; minimum inhibitory concentration; multiple drug resistance; nanoparticles; nanosilver; pathogens; ribosomal RNA; scanning electron microscopy; secondary metabolites; silver; surface plasmon resonance; transmission electron microscopy; ultraviolet-visible spectroscopy; value added; Persian Gulf
- Abstract:
- ... Green biosynthesis of nanoparticles yielded from the extracellular metabolites of marine derived actinomycetes is covering enormous attention due to their superior applications and broad spectrum of bioactive secondary metabolites. The present study aimed to explore the characterization of novel bioactive Streptomyces sp. Al-Dhabi-89 derived from the Arabian Gulf region of Dammam was authenticated ...
- DOI:
- 10.1016/j.jphotobiol.2018.09.012
-
https://dx.doi.org/10.1016/j.jphotobiol.2018.09.012
- Author:
- Das, Piu; Ghosh, Sanjukta; Ghosh, Raktim; Dam, Somasri; Baskey, Moni
- Source:
- Journal of photochemistry and photobiology 2018 v.189 pp. 66-73
- ISSN:
- 1011-1344
- Subject:
- Bacillus subtilis; Escherichia coli; Fourier transform infrared spectroscopy; Madhuca longifolia; Staphylococcus aureus; X-ray diffraction; ampicillin; antibacterial properties; copper nanoparticles; cost effectiveness; crystal structure; cupric oxide; irradiation; methylene blue; particle size; photocatalysis; photoluminescence; plant extracts; reducing agents; tetracycline; transmission electron microscopy; ultraviolet-visible spectroscopy; wastewater treatment
- Abstract:
- ... In current years, the development of efficient green methods for synthesis of metal oxide nanomaterials has attracted a great attention to the researchers since the plant-mediated synthesis is a cost-effective and a good alternative to chemical and physical methods. An efficient and eco-friendly route has been developed for the green synthesis of CuO nanoparticles (NPs) by Madhuca longifolia plant ...
- DOI:
- 10.1016/j.jphotobiol.2018.09.023
-
https://dx.doi.org/10.1016/j.jphotobiol.2018.09.023
- Author:
- Ahmed, Rashid; Tariq, Muhammad; Ali, Imran; Asghar, Rehana; Noorunnisa Khanam, P.; Augustine, Robin; Hasan, Anwarul
- Source:
- International journal of biological macromolecules 2018 v.120 pp. 385-393
- ISSN:
- 0141-8130
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray diffraction; amputation; antibacterial properties; antioxidant activity; antioxidants; chitosan; diabetes; health care costs; nanofibers; patients; polyvinyl alcohol; rabbits; scanning electron microscopy; tissue repair; zinc oxide
- Abstract:
- ... Non-healing wound is a serious complication of diabetes, associated with extremely slow wound closure, and a high rate of infection, resulting in amputation or losses of limbs, high health care cost and poor quality of patient's life. In the present study, we hypothesized that nanofiber mats composed of a combination of chitosan, polyvinyl alcohol (PVA) and Zinc oxide (ZnO) could be an effective o ...
- DOI:
- 10.1016/j.ijbiomac.2018.08.057
-
https://dx.doi.org/10.1016/j.ijbiomac.2018.08.057
- Author:
- Li, Yalan; Zhang, Yangyang; Wanru, Dong; Yue, Jinquan; Xu, Min; Shi, Sheldon Q.
- Source:
- Holzforschung 2018 v.72 no.11 pp. 923-931
- ISSN:
- 1437-434X
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-radiation; X-ray diffraction; absorption; antibacterial properties; chemosynthesis; nanoparticles; pulp fiber; scanning electron microscopy; thermogravimetry; zinc oxide
- Abstract:
- ... The efficiency of the growth and properties of zinc oxide (ZnO) nanoparticles (ZnO-NPs) on pulp fibers was investigated. ZnO-NPs were grown on pulp fiber surface via an in situ chemosynthesis method at different concentrations. The modified pulp fibers were characterized by different analytical tools including field-emission scanning electron microscopy (FE-SEM), Fourier-transform infrared (FTIR) ...
- DOI:
- 10.1515/hf-2018-0013
-
https://dx.doi.org/10.1515/hf-2018-0013
- Author:
- Thakur, Anupma; Devi, Pooja; Saini, Shefali; Jain, Rishabh; Sinha, Ravindra Kumar; Kumar, Praveen
- Source:
- ACS sustainable chemistry & engineering 2018 v.7 no.1 pp. 502-512
- ISSN:
- 2168-0485
- Subject:
- Citrus; Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; antibacterial properties; carbon quantum dots; ions; iron; methylene blue; organic wastes; photocatalysis; pulp; pyrolysis; spectral analysis; transmission electron microscopy
- Abstract:
- ... The present work reports green route-waste recycled carbon nanolights, i.e., carbon dots (GCDs), synthesized via a facile one-step pyrolysis method from Citrus limetta waste pulp. The size of these obtained pristine GCDs is ∼4–7 nm (HR-TEM), with high optical and structural quality as revealed by FT-IR and Raman spectroscopic analysis. They exhibit the highest quantum yield of 63.3% over other sim ...
- DOI:
- 10.1021/acssuschemeng.8b04025
-
http://dx.doi.org/10.1021/acssuschemeng.8b04025
- Author:
- Xiao, Yongmei; Rong, Liduo; Wang, Bijia; Mao, Zhiping; Xu, Hong; Zhong, Yi; Zhang, Linping; Sui, Xiaofeng
- Source:
- Carbohydrate polymers 2018 v.200 pp. 595-601
- ISSN:
- 0144-8617
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray photoelectron spectroscopy; acetoacetic acid; antibacterial properties; cellulose; cellulose microfibrils; enamines; energy-dispersive X-ray analysis; flowers; gentamicin; nitrogen; scanning electron microscopy; silane
- Abstract:
- ... Covalent grafting of gentamicin to nanocellulose-based sponge was realized for the first time. The named sponge was prepared by initially multi-crosslinking among cellulose nanofibers (CNF), cellulose acetoacetate (CAA) and 3-aminopropyl(triethoxy)silane (APTES) followed by surface modification with gentamicin via the formation of enamine bond. The structure and mechanical performances of the obta ...
- DOI:
- 10.1016/j.carbpol.2018.07.091
-
https://dx.doi.org/10.1016/j.carbpol.2018.07.091
- Author:
- Saravanan, Mythili; Senthilkumar, Palanisamy; Kalimuthu, Kandasamy; Chinnadurai, Vajjiram; Vasantharaj, Seerangaraj; Pugazhendhi, Arivalagan
- Source:
- Industrial crops and products 2018 v.124 pp. 822-833
- ISSN:
- 0926-6690
- Subject:
- Aspergillus niger; Candida albicans; Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; Turnera subulata; anthocyanins; antifungal properties; chloroform; ethanol; ethyl acetate; flavonols; fungi; gas chromatography-mass spectrometry; hydroxybenzaldehyde; isoflavonoids; liquid chromatography; medicinal plants; phenolic acids; physicochemical properties; plant extracts; polyphenols; qualitative analysis; solid phase extraction; solvents; tandem mass spectrometry; virulent strains
- Abstract:
- ... Turnera subulata plant samples were exhaustively extracted through continuous hot percolation method by selective sequential soxhlet extraction using solvents of increasing polarity. All the extracts were subjected to qualitative analysis to identify, analyse and characterize the bioactive phytocompounds present in each extract, about which much information are unavailable. The qualitative prelimi ...
- DOI:
- 10.1016/j.indcrop.2018.08.065
-
https://dx.doi.org/10.1016/j.indcrop.2018.08.065
- Author:
- Cao, Guozhou; Lin, Han; Kannan, Palanisamy; Wang, Chun; Zhong, Yingying; Huang, Youju; Guo, Zhiyong
- Source:
- Langmuir 2018 v.34 no.48 pp. 14537-14545
- ISSN:
- 1520-5827
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; antibacterial properties; atomic absorption spectrometry; bacteria; crystallization; industrial applications; ions; melting; mixing; models; nanocomposites; nanosilver; polypropylenes; silver; thermal degradation; thermogravimetry; toxicity; transmission electron microscopy; ultraviolet-visible spectroscopy
- Abstract:
- ... In this work, we synthesize dodecyl mercaptan-functionalized silver nanoparticles integrated with polypropylene nanocomposite (DM-AgNPs/PP) substrates by a simple in situ melt blending method. The formation and distribution of AgNPs are confirmed by UV–visible spectroscopy, Fourier transform infrared spectroscopy, transmission electron microscopy, and thermogravimetric analysis. The existence of D ...
- DOI:
- 10.1021/acs.langmuir.8b03061
-
http://dx.doi.org/10.1021/acs.langmuir.8b03061
- Author:
- Ullah, A. K. M. Atique; Kabir, M. F.; Akter, M.; Tamanna, A. N.; Hossain, A.; Tareq, A. R. M.; Khan, M. N. I.; Kibria, A. K. M. Fazle; Kurasaki, Masaaki; Rahman, M. M.
- Source:
- RSC advances 2018 v.8 no.65 pp. 37176-37183
- ISSN:
- 2046-2069
- Subject:
- Artocarpus heterophyllus; Bacillus cereus; Escherichia coli; Fourier transform infrared spectroscopy; Gram-negative bacteria; Gram-positive bacteria; Salmonella Typhimurium; Staphylococcus aureus; animal pathogens; antibacterial properties; antibiotics; crystallites; encapsulation; energy-dispersive X-ray analysis; leaf extracts; magnetism; nanosilver; scanning electron microscopy; silver nitrate; thermogravimetry; transmission electron microscopy; virulent strains
- Abstract:
- ... Persuaded by the necessity of finding new sources of antibiotics, silver nanoparticles (Ag NPs) were synthesized by adopting a newly developed green synthesis technique and subsequently, their antibacterial activity against different pathogenic bacteria was evaluated. We have successfully synthesized bio-molecule capped ferromagnetic Ag NPs with an average crystallite size of 13 nm using AgNO₃ sol ...
- DOI:
- 10.1039/c8ra06908e
-
http://dx.doi.org/10.1039/c8ra06908e
- Author:
- Aashima,; Pandey, Satish Kumar; Singh, Suman; Mehta, S.K.
- Source:
- Journal of colloid and interface science 2018 v.529 pp. 496-504
- ISSN:
- 0021-9797
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Salmonella Typhimurium; Staphylococcus aureus; antibiotics; antimicrobial properties; ascorbic acid; bacteria; gadolinium; nanoparticles; scanning electron microscopy; transmission electron microscopy
- Abstract:
- ... The inappropriate and surfeit use of antibiotics have generated a hunt for safe and alternative antimicrobial agents against pathogenic bacteria. With the advancement in nanoscience and nanotechnology, promising opportunities for examining the bacterial effect of metal nanoparticles were demonstrated in literature. Focusing on this, our present study presentssynthesis of l-ascorbic coated gadolini ...
- DOI:
- 10.1016/j.jcis.2018.06.030
-
https://dx.doi.org/10.1016/j.jcis.2018.06.030
- Author:
- Siddiqui, Sharf Ilahi; Chaudhry, Saif Ali
- Source:
- Journal of cleaner production 2018 v.200 pp. 996-1008
- ISSN:
- 0959-6526
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Gram-negative bacteria; Nigella sativa; Staphylococcus aureus; X-ray diffraction; adsorbents; adsorption; chemical pollutants; coprecipitation; differential scanning calorimetry; energy-dispersive X-ray analysis; growth retardation; methylene blue; microbial growth; nanohybrids; people; remediation; scanning electron microscopy; thermogravimetry; transmission electron microscopy; water pollution; water purification
- Abstract:
- ... It is a challenge for the current world to provide chemical pollutants and microbes free affordable water. Clean water can be made available to common people by protecting the water sources, and purifying the polluted water. Carbon-based materials can be prepared and utilized for the remediation of water pollutants and microbes. The present study reveals the advancement in water treatment technolo ...
- DOI:
- 10.1016/j.jclepro.2018.07.300
-
https://dx.doi.org/10.1016/j.jclepro.2018.07.300
- Author:
- Sathiyavimal, Selvam; Vasantharaj, Seerangaraj; Bharathi, Devaraj; Saravanan, Mythili; Manikandan, Elayaperumal; Kumar, Smita S.; Pugazhendhi, Arivalagan
- Source:
- Journal of photochemistry and photobiology 2018 v.188 pp. 126-134
- ISSN:
- 1011-1344
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Gram-positive bacteria; Proteus vulgaris; Sida acuta; Staphylococcus aureus; antimicrobial properties; bioactive compounds; biogenesis; chitosan; copper; copper nanoparticles; cost effectiveness; cotton fabric; cupric oxide; dyes; employment; enzymes; leaf extracts; lipids; microbial contamination; nanosilver; pathogenicity; pathogens; phenols; photocatalysis; scanning electron microscopy; silica; silver; textile industry; titanium dioxide; transmission electron microscopy; ultraviolet-visible spectroscopy; zinc oxide
- Abstract:
- ... Textile industry is a major sector providing global financial and employment support to different countries of the world. The major problems of the textile industry are dirt and microbial contaminants affecting the quality of cotton fabrics. Recently, nanoparticles such as silver, chitosan, silicon dioxide, titanium dioxide and zinc oxide have gained attraction in textile industries to avoid the c ...
- DOI:
- 10.1016/j.jphotobiol.2018.09.014
-
https://dx.doi.org/10.1016/j.jphotobiol.2018.09.014
- Author:
- Hedayati Rad, Fatemeh; Sharifan, Anousheh; Asadi, Gholamhassan
- Source:
- Lebensmittel-Wissenschaft + [i.e. und] Technologie 2018 v.97 pp. 794-801
- ISSN:
- 0023-6438
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Lactobacillus plantarum; Rosmarinus officinalis; Staphylococcus aureus; Zataria multiflora; agar; antibacterial properties; bacteria; essential oils; hydrogen bonding; meat; ostriches; packaging; permeability; phenol; plate count; polyurethanes; refrigerators; shelf life; storage time; tensile strength; terpenoids; water vapor
- Abstract:
- ... The evaluation of the physicochemical and antimicrobial properties of kefiran/waterborne polyurethane blend (K/WPU) film incorporated with Zataria multiflora (ZM) and Rosmarinus officinalis essential oils (RO) with concentration 5, 10, 15 and 20% (v/v) for ostrich meat packaging were the goals of this study. The band shift of the Fourier transform infrared spectra implied that intermolecular hydro ...
- DOI:
- 10.1016/j.lwt.2018.08.005
-
https://dx.doi.org/10.1016/j.lwt.2018.08.005
- Author:
- Chentir, Imene; Hamdi, Marwa; Li, Suming; Doumandji, Amel; Markou, Giorgos; Nasri, Moncef
- Source:
- Algal research 2018 v.35 pp. 395-406
- ISSN:
- 2211-9264
- Subject:
- 2,2-diphenyl-1-picrylhydrazyl; Arthrospira; Escherichia coli; Fourier transform infrared spectroscopy; Micrococcus luteus; Pseudomonas; Staphylococcus aureus; algae; antibacterial properties; antioxidant activity; beta-carotene; bleaching; dose response; emulsifying; foaming properties; glass; hydrogen; pH; phycocyanin; solubility; sorbitol; stabilizers; thermal stability
- Abstract:
- ... Crude phycocyanin extract (PC-E) from a two-phase cultured Saharian Arthrospira sp. strain with a purity grade of 1.24 (reagent grade) was characterized regarding its stability, bio-functionality and bio-activity. PC-E showed higher solubility values above pH 6.0, while the maximum stability was achieved at pH 6.0. PC-E was stable only up to 50 °C, while the addition of stabilizing agents (PEG-400 ...
- DOI:
- 10.1016/j.algal.2018.09.013
-
https://dx.doi.org/10.1016/j.algal.2018.09.013