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You searched for: Publication year rev 7985-2015 Remove constraint Publication year rev: 7985-2015 Subject term antibacterial properties Remove constraint Subject term: antibacterial properties
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1. 15,16-Dihydrotanshinone I suppresses IgE-Ag stimulated mouse bone marrow-derived mast cell activation by inhibiting Syk kinase

Author:
Xian Li; Ju Hye Yang; Ye Jin; Fansi Jin; Dong-Young Kim; Jae-Hoon Chang; Jung-Ae Kim; Jong-Keun Son; Tae Chul Moon; Kun Ho Son; Hyeun Wook Chang
Source:
Journal of ethnopharmacology 2015 v.169 pp. 138-144
ISSN:
0378-8741
Subject:
Oriental traditional medicine; Salvia miltiorrhiza; T-lymphocytes; anti-allergic agents; antibacterial properties; calcium; enzyme-linked immunosorbent assay; hepatitis; immunoblotting; inflammation; mast cells; mice; mitogen-activated protein kinase; neoplasms; non-specific protein-tyrosine kinase; phospholipases; phosphorylation; precipitin tests; prostaglandins; signal transduction; transcription factor NF-kappa B
Abstract:
... 15,16-Dihydrotanshinone I (DHT-I), isolated from the dried root of Salvia miltiorrhiza Bung, which is traditionally used to treat cardiovascular and inflammatory diseases agent in Chinese medicine. DHT-I has been reported to have a broad range of biological activities, including antibacterial activity, and has been used to treat circulatory disorders, hepatitis, inflammation, cancer, and neurodege ...
DOI:
10.1016/j.jep.2015.04.022

2. 2(5H)-Furanone, epigallocatechin gallate, and a citric-based disinfectant disturb quorum-sensing activity and reduce motility and biofilm formation of Campylobacter jejuni

Author:
Sandra Castillo; Norma Heredia; Santos García
Source:
Folia microbiologica 2015 v.60 no.1 pp. 89-95
ISSN:
0015-5632
Subject:
polyphenols; biofilm; green tea; minimum inhibitory concentration; disinfectants; quorum sensing; Chlorophyta; Delisea; bacterial motility; agar; bioluminescence; anti-infective agents; epigallocatechin; virulence; Campylobacter jejuni; antibacterial properties
Abstract:
... Brominated furanone and epigallocatechin gallate (EGCG) are naturally occurring polyphenolic compounds that can be derived from sources such as Delisea pulchra algae and green tea, respectively. These compounds may have potential health benefits and antimicrobial properties. Biofilm formation and bacterial motility are virulence factors that seem to be involved in the autoinducer 2 (AI-2)-mediated ...
DOI:
10.1007/s12223-014-0344-0

3. 3-(1-Phenyl-4-((2-(4-arylthiazol-2-yl)hydrazono)methyl)-1H-pyrazol-3-yl)-2H-chromen-2-ones: one-pot three component condensation, in vitro antimicrobial, antioxidant and molecular docking studies

Author:
Ramesh Gondru; Janardhan Banothu; Ranjith Kumar Thatipamula; Althaf Hussain SK; Rajitha Bavantula
Source:
RSC advances 2015 v.5 no.42 pp. 33562-33569
ISSN:
2046-2069
Subject:
Escherichia coli; active sites; antibacterial properties; antifungal agents; antioxidant activity; antioxidants; binding sites; biosynthesis; computer simulation; crystal structure; drugs; heterocyclic compounds; hydrogen bonding; ligands; peptidoglycans; spectral analysis
Abstract:
... In an attempt to find a new class of heterocyclic bio-active agents, a series of novel 3-(1-phenyl-4-((2-(4-arylthiazol-2-yl)hydrazono)methyl)-1H-pyrazol-3-yl)-2H-chromen-2-one derivatives (5a–l) have been synthesized efficiently both quantitatively and qualitatively via a three-component one-pot manner by Hantzsch condensation. Structures of all the newly synthesized compounds were established by ...
DOI:
10.1039/c5ra04196a

4. 45S5Bioglass®-based scaffolds coated with selenium nanoparticles or with poly(lactide-co-glycolide)/selenium particles: Processing, evaluation and antibacterial activity

Author:
Magdalena Stevanović; Nenad Filipović; Jelena Djurdjević; Miodrag Lukić; Marina Milenković; Aldo Boccaccini
Source:
Colloids and Surfaces B: Biointerfaces 2015 v.132 pp. 208-215
ISSN:
0927-7765
Subject:
Fourier transform infrared spectroscopy; Gram-positive bacteria; Staphylococcus aureus; Staphylococcus epidermidis; X-ray diffraction; antibacterial properties; antioxidants; antiviral properties; bones; cell proliferation; colloids; energy-dispersive X-ray analysis; foams; glass; monitoring; nanoparticles; new family; orthopedics; scanning electron microscopy; selenium; tissue engineering; transmission electron microscopy
Abstract:
... In the bone tissue engineering field, there is a growing interest in the application of bioactive glass scaffolds (45S5Bioglass®) due to their bone bonding ability, osteoconductivity and osteoinductivity. However, such scaffolds still lack some of the required functionalities to enable the successful formation of new bone, e.g. effective antibacterial properties. A large number of studies suggest ...
DOI:
10.1016/j.colsurfb.2015.05.024

5. 6-Tosyl-4,5,6,7-Tetrahydrothieno[2,3-c]Pyridine-3-Carboxamide Analogues: Synthesis, Characterization, MO Calculation, and Antibacterial Activity

Author:
Hiren Doshi; Sampark Thakkar; Prashant Khirsariya; Mukund Chandra Thakur; Arabinda Ray
Source:
Applied biochemistry and biotechnology 2015 v.175 no.3 pp. 1700-1709
ISSN:
0273-2289
Subject:
Bacillus subtilis; Escherichia coli; Staphylococcus aureus; antibacterial properties; antibiotics; biotechnology; ciprofloxacin; nuclear magnetic resonance spectroscopy
Abstract:
... A series of 6-tosyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxamide analogues are synthesized by conventional techniques and characterized by elemental analysis, IR, MS,¹H, and¹³C NMR. These are tested for their antibacterial activity against Bacillus subtilis (abbreviated as BS), Staphylococcus aureus (abbreviated as SA), and Escherichia coli (abbreviated as EC). The synthesized compounds a ...
DOI:
10.1007/s12010-014-1399-8

6. AKTIFITAS ANTIBAKTERI EKSTRAK ETANOL 60% DAN EKSTRAK AIR KULIT BUAH NAGA MERAH TERHADAP BAKTERI STAPHYLOCOCCUS AUREUS DAN ESCHERICIA COLI (Antibacterial Activity of Ethanol 60% and Distilled Water Extract from Red Pitaya (Hylocereus Polyrhizus) Peel t

Author:
Anni Faridah; Daimon Syukri; Rahmi Holinesti
Source:
Jurnal Teknologi Pangan 2015 v.9 no.1 pp. -
ISSN:
2654-5292
Subject:
Escherichia coli; Hylocereus polyrhizus; Staphylococcus aureus; air; antibacterial properties; ethanol; paper
Abstract:
...

Abstract

The purpose of this study was to compare the antibacterial activity of 60% ethanol and extracts distilled water from red pitaya (Hylocereus polyrhizus) peel to bacteria Staphylococcus aureus and Escherichia coli. The treatment used was the concentration of the extract with some dilution treatment. Antibacterial activity test performed using paper di ...

DOI:
10.33005/jtp.v9i1.464

7. AKTIVITAS ANTIBAKTERI DARI FRAKSI DAUN BANDOTAN (Ageratum conyzoides L.) SECARA KROMATOGRAFI LAPIS TIPIS BIOAUTOGRAFI

Author:
Islamudin Ahmad
Source:
Journal of Tropical Pharmacy and Chemistry 2015 v.3 no.1 pp. -
ISSN:
2407-6090
Subject:
Ageratum conyzoides; agar; antibacterial properties; chemistry; chloroform; ethyl acetate; fractionation; glucose; hexane; liquid-liquid extraction; maceration; methanol; solvents; thin layer chromatography
Abstract:
... Screening Ageratum conyzoides L. fraction for antibacterial activity using thin layer chromatography bioautography have been done. The method is based on thin-layer chromatography–direct bioautography of Ageratum conyzoides chloroform fraction. The aim of study to determine the antibacterial activity of chloroform Ageratum conyzoides L. fraction in TLC bioautography. Extraction was done by macerat ...
DOI:
10.25026/jtpc.v3i1.85

8. AKTIVITAS ANTIBAKTERI EKSTRAK BUAH ADAS (Foeniculum vulgare, Mill) PADA Vibrio harveyi DAN Vibrio alginolyticus Antibacterial Activity of Fennel (Foeniculum vulgare Mill) Extract on Vibrio alginolyticus and Vibrio harveyi

Author:
Budianto; Arief Prajitno; Ating Yuniarti
Source:
Agritech 2015 v.35 no.03 pp. 266-272
ISSN:
2527-3825
Subject:
Foeniculum vulgare; Vibrio alginolyticus; Vibrio harveyi; air; antibacterial properties; antibiotics; disk diffusion antimicrobial test; fennel; fruits; minimum inhibitory concentration; vibriosis
Abstract:
... Evaluation of natural products as a safe and effective antimicrobial agent is a scientific strategy to treat the drugresistant pathogens.Fennel(FoeniculumvulgareMill) is an herbal plant that has an active in gredient which is one of its benefit sasan antibacterial material. In thisstudy,water extract of fennel fruit determined the antibacterial activity against Vibrio harveyi and Vibrio alginolyti ...
DOI:
10.22146/agritech.9336

9. AKTIVITAS ANTIMIKROBA MINYAK ESENSIAL JAHE MERAH (Zingiber officinale var. Rubrum) DAN LENGKUAS MERAH (Alpinia purpurata K. Schum) TERHADAP BAKTERI PATOGEN DAN PERUSAK PANGAN

Author:
Tita Rialita; Winiati Pudji Rahayu; Lilis Nuraida; Budi Nurtama
Source:
Agritech 2015 v.35 no.01 pp. 43-52
ISSN:
2527-3825
Subject:
Alpinia purpurata; Bacillus cereus; Escherichia coli; Zingiber; antibacterial properties; camphene; color; decline; essential oils; food industry; food spoilage; ginger; gravity; minimum inhibitory concentration; nerol; refractive index; Indonesia
Abstract:
... The aims of this study was to determine the characteristics, composition and antimicrobial activity of essential oils of local Indonesian red ginger and red galangal against four pathogenic and food spoilage bacteria, which were B.cereus ATCC 10876, E. coli ATCC 25922, S. typhimuriumATCC 14028, and P. aeruginosa ATCC 27853. Analysis of physicochemical characteristics was carried outin accordance w ...
DOI:
10.22146/agritech.9418

10. The ATPase activity of the mycobacterial plasma membrane is inhibited by the LL37-analogous peptide LLAP

Author:
Sandra Chingaté; Gabriela Delgado; Luz Mary Salazar; Carlos-Yesid Soto
Source:
Peptides 2015 v.71 pp. 222-228
ISSN:
0196-9781
Subject:
Mycobacterium tuberculosis; adenosinetriphosphatase; amino acid sequences; amino acids; antibacterial properties; antimicrobial peptides; bioinformatics; cell viability; circular dichroism spectroscopy; cytotoxicity; enzyme activity; hemolysis; matrix-assisted laser desorption-ionization mass spectrometry; minimum inhibitory concentration; multiple drug resistance; plasma membrane; proteins; reversed-phase high performance liquid chromatography
Abstract:
... The emergence of multidrug-resistant Mycobacterium tuberculosis strains has led to the development of new antituberculous agents. In this context, antimicrobial targeting proteins to the cell membrane are interesting due to the avoidance of the plasma membrane permeation. Through this study, the antimicrobial activity, cellular toxicity, as well as the effect on the mycobacterial cell membrane ATP ...
DOI:
10.1016/j.peptides.2015.07.021

11. Acetate-Derived Metabolites from the Brown Alga Lobophora variegata

Author:
Gutiérrez-Cepeda Adrián; Fernández José J.; Norte Manuel; Montalvão Sofia; Tammela Päivi; Souto María L.
Source:
Journal of natural products 2015 v.78 no.7 pp. 1716-1722
ISSN:
1520-6025
Subject:
Lobophora variegata; Staphylococcus aureus; antibacterial properties; biosynthesis; metabolites; polyketide synthases; spectroscopy; Canary Islands
Abstract:
... Seven new nonadecaketides (1–7), lobophorols A–C, lobophopyranones A and B, and lobophorones A and B, along with the first naturally occurring related metabolites (8–10), were isolated from specimens of Lobophora variegata collected from the Canary Islands. Their structures were determined by extensive spectroscopic methods. In addition, an insight into the biosynthesis of these compounds on the b ...
DOI:
10.1021/acs.jnatprod.5b00415

12. Acetylcholinesterase Inhibitors from a Marine Fungus Talaromyces sp. Strain LF458

Author:
Bin Wu; Birgit Ohlendorf; Vanessa Oesker; Jutta Wiese; Susann Malien; Rolf Schmaljohann; Johannes F. Imhoff
Source:
Marine biotechnology 2015 v.17 no.1 pp. 110-119
ISSN:
1436-2228
Subject:
Staphylococcus; Talaromyces; acetylcholinesterase; antibacterial properties; biphenyl; carbon; culture media; humans; inhibitory concentration 50; marine fungi; mycelium
Abstract:
... Two new oxaphenalenone dimers, talaromycesone A (1) and talaromycesone B (2), and a new isopentenyl xanthenone, talaroxanthenone (3), together with six known diphenyl ether derivatives, e.g., Δ¹′,³′,-1′-dehydroxypenicillide (4), 1′,2′-dehydropenicillide (5), vermixocin A (6), vermixocin B (7), 3′-methoxy-1′2′-dehydropenicillide (8), and AS-186c (9), were isolated from the culture broth and mycelia ...
DOI:
10.1007/s10126-014-9599-3
PubMed:
25108548

13. Acorus calamus rhizome extract mediated biosynthesis of silver nanoparticles and their bactericidal activity against human pathogens

Author:
Chinnappan Sudhakar; Kandasamy Selvam; Muthusamy Govarthanan; Balakrishnan Senthilkumar; Arumugam Sengottaiyan; Murugesan Stalin; Thangasamy Selvankumar
Source:
Journal of Genetic Engineering and Biotechnology (Print) 2015 v.13 no.2 pp. 93-99
ISSN:
1687-157X
Subject:
Acorus calamus; Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray diffraction; animal pathogens; antibacterial properties; antibiotics; biosynthesis; dose response; energy; energy-dispersive X-ray analysis; medicine; microbial growth; nanosilver; response surface methodology; rhizomes; scanning electron microscopy; secondary metabolites; silver; silver nitrate; surface plasmon resonance; temperature; ultraviolet-visible spectroscopy
Abstract:
... Silver nanoparticle (AgNP) synthesis and characterization is an area of vast interest due to their broader application in the fields of science and technology and medicine. Plants are an attractive source for AgNP synthesis because of its ability to produce a wide range of secondary metabolites with strong reducing potentials. Thus, the present study describes the synthesis of AgNPs using aqueous ...
DOI:
10.1016/j.jgeb.2015.10.003
PubMed:
30647572
PubMed Central:
PMC6299866

14. Action mechanism of small and large molecule surfactant-based clove oil nanoemulsions against food-borne pathogens and real-time detection of their subpopulations

Author:
Hamid Majeed; John Antoniou; Charles F. Shoemaker; Zhong Fang
Source:
Archives of microbiology 2015 v.197 no.1 pp. 35-45
ISSN:
0302-8933
Subject:
Escherichia coli; antibacterial properties; bacteria; cell viability; clove oil; flow cytometry; food pathogens; mechanism of action; minimum inhibitory concentration; nanoemulsions; polysorbates
Abstract:
... Flow cytometry exactly discriminated three subpopulations, i.e., viable, damage and sublethal cells of L. monocytogenes, S. aureus and E. coli when treated at their MIC values. Purity gum ultra (PGU) a large molecule surfactant-based CO nanoemulsion exerted significant impact on cellular subpopulations of L. monocytogenes and S. aureus, with more membrane-damaged cells. On the other hand, when com ...
DOI:
10.1007/s00203-014-1046-3

15. Action of silver nanoparticles towards biological systems: cytotoxicity evaluation using hen's egg test and inhibition of Streptococcus mutans biofilm formation

Author:
Priscila L.L. Freire; Thayza C.M. Stamford; Allan J.R. Albuquerque; Fabio C. Sampaio; Horacinna M.M. Cavalcante; Rui O. Macedo; André Galembeck; Miguel A.P. Flores; Aronita Rosenblatt
Source:
International journal of antimicrobial agents 2015 v.45 no.2 pp. 183-187
ISSN:
0924-8579
Subject:
Streptococcus mutans; aesthetics; anti-infective agents; antibacterial properties; bacteria; biofilm; cell viability; chorioallantoic membrane; coagulation; colloids; color; cytotoxicity; eggs; fluorescence; fluorescent dyes; fluorides; hemorrhage; hens; nanosilver; new products; silver; tooth enamel; vasoconstriction
Abstract:
... This study aimed to evaluate the cytotoxicity and bactericidal properties of four silver nanoparticle (AgNP) colloids and their ability to inhibit Streptococcus mutans biofilm formation on dental enamel. The cytotoxicity of AgNPs was evaluated based on signs of vascular change on the chorioallantoic membrane using the hen's egg test (HET-CAM). Bactericidal properties and inhibition of S. mutans bi ...
DOI:
10.1016/j.ijantimicag.2014.09.007

16. Activities of Wogonin Analogs and Other Flavones against Flavobacterium columnare

Author:
Cheng-Xia Tan; Kevin K. Schrader; Ikhlas A. Khan; Agnes M. Rimando
Source:
Chemistry & biodiversity 2015 v.12 no.2 pp. 259-272
ISSN:
1612-1872
Subject:
Flavobacterium columnare; Ictalurus punctatus; antibacterial properties; bioassays; biochanin A; chalcone; columnaris disease; disease control; inhibitory concentration 50; isorhamnetin; luteolin; minimum inhibitory concentration; synthesis; toxicity
Abstract:
... In our continuing pursuit to discover natural products and natural product-based compounds to control the bacterial species Flavobacterium columnare which causes columnaris disease in channel catfish (Ictalurus punctatus), we synthesized flavone and chalcone analogs, and evaluated these compounds, along with flavonoids from natural sources, for antibacterial activities against two isolates of F. c ...
Handle:
10113/62340
DOI:
10.1002/cbdv.201400181

17. Activity of 10 antimicrobial agents against intracellular Rhodococcus equi

Author:
Steeve Giguère; Londa J. Berghaus; Elise A. Lee
Source:
Veterinary microbiology 2015 v.178 no.3-4 pp. 275-278
ISSN:
0378-1135
Subject:
Rhodococcus equi; antibacterial properties; azithromycin; bacteria; ceftiofur; clarithromycin; doxycycline; drugs; enrofloxacin; foals; gentamicin; imipenem; macrophages; pathogens; rifampicin; vancomycin; virulence
Abstract:
... Studies with facultative intracellular bacterial pathogens have shown that evaluation of the bactericidal activity of antimicrobial agents against intracellular bacteria is more closely associated with in vivo efficacy than traditional in vitro susceptibility testing. The objective of this study was to determine the relative activity of 10 antimicrobial agents against intracellular Rhodococcus equ ...
DOI:
10.1016/j.vetmic.2015.05.019

18. Activity of a novel bactericide, zinc thiazole against Xanthomonas oryzae pv. oryzae in Anhui Province of China

Author:
Y. Chen; X. Yang; C‐Y. Gu; A‐F. Zhang; Y. Zhang; W‐X. Wang; T‐C. Gao; J. Yao; S‐K. Yuan
Source:
Annals of applied biology 2015 v.166 no.1 pp. 129-135
ISSN:
0003-4746
Subject:
Xanthomonas oryzae pv. oryzae; antibacterial properties; field experimentation; leaf blight; microbial growth; minimum inhibitory concentration; rice; zinc; China
Abstract:
... Bacterial leaf blight of rice (BLB), caused by Xanthomonas oryzae pv oryzae, is one of the most serious bacterial diseases in China. Presently, bismerthiazol has been the major bactericide for the control of BLB, however, bismerthiazol‐resistant strains of X. oryzae pv. oryzae have appeared in the field in China. Zinc thiazole is a novel bactericide with strong antibacterial activity against Xanth ...
DOI:
10.1111/aab.12170

19. Addition of Zn to the ternary Mg–Ca–Sr alloys significantly improves their antibacterial properties

Author:
Guanping He; Yuanhao Wu; Yu Zhang; Ye Zhu; Yang Liu; Nan Li; Mei Li; Guan Zheng; Baohua He; Qingshui Yin; Yufeng Zheng; Chuanbin Mao
Source:
Journal of materials chemistry B 2015 v.3 no.32 pp. 6676-6689
ISSN:
2050-7518
Subject:
alloys; antibacterial properties; bacteria; bacterial infections; biocompatibility; biodegradability; calcium; cell viability; corrosion; hydrogen production; magnesium; mechanical properties; orthopedics; osteoblasts; pH; prostheses; strontium; zinc
Abstract:
... Most of the magnesium (Mg) alloys possess excellent biocompatibility, mechanical properties and biodegradability in orthopedic applications. However, these alloys may suffer from bacterial infections due to their insufficient antibacterial capability. In order to reduce the post-surgical infections, a series of biocompatible Mg–1Ca–0.5Sr–xZn (x = 0, 2, 4, 6) alloys were fabricated with the additio ...
DOI:
10.1039/c5tb01319d
PubMed:
26693010
PubMed Central:
PMC4675164

20. Additional Sesterterpenes and a Nortriterpene Saponin from the Sponge Clathria gombawuiensis

Author:
Woo Jung-Kyun; Kim Chang-Kwon; Ahn Chan-Hong; Oh Dong-Chan; Oh Ki-Bong; Shin Jongheon
Source:
Journal of natural products 2015 v.78 no.2 pp. 218-224
ISSN:
1520-6025
Subject:
Porifera; antibacterial properties; anticarcinogenic activity; cytotoxicity; metabolites; saponins; spectral analysis
Abstract:
... Three new terpene metabolites (1–3) were isolated from the marine sponge Clathria gombawuiensis collected from Korean waters. On the basis of the results of combined spectroscopic analyses, the structures of phorone B (1) and ansellone C (2) were determined to be the sesterterpenes of the phorone and ansellone classes, respectively, whereas the saponin gombaside A (3) was a nortriterpene sodium O- ...
DOI:
10.1021/np500753q

21. Adsorption and photocatalyst assisted dye removal and bactericidal performance of ZnO/chitosan coating layer

Author:
Tahseen Kamal; Mazhar Ul-Islam; Sher Bahadar Khan; Abdullah M. Asiri
Source:
International journal of biological macromolecules 2015 v.81 pp. 584-590
ISSN:
0141-8130
Subject:
Escherichia coli; X-ray diffraction; adsorption; antibacterial properties; aqueous solutions; azo dyes; cellulose; chitosan; coatings; dissociation; methyl orange; pH; photocatalysts; photolysis; scanning electron microscopy; ultraviolet radiation; zinc oxide
Abstract:
... Pure chitosan and its zinc oxide composite coatings were applied on microfibriller cellulose mat (MCM) to prepare chitosan coated microfibriller cellulose (Chi-MCM) and zinc oxide/chitosan coated microfibriller cellulose (ZnO/Chi-MCM), respectively. X-ray diffraction (XRD), and scanning electron microscopy (SEM), were used to characterize the samples in this study. SEM images showed that dense chi ...
DOI:
10.1016/j.ijbiomac.2015.08.060

22. Advance on the bioactivity and potential applications of dietary fibre from grape pomace

Author:
Fengmei Zhu; Bin Du; Lihong Zheng; Jun Li
Source:
Food chemistry 2015 v.186 pp. 207-212
ISSN:
0308-8146
Subject:
anti-inflammatory activity; antibacterial properties; antineoplastic activity; antioxidant activity; byproducts; cardiovascular diseases; chemical composition; dietary fiber; dietary supplements; gastrointestinal system; grape pomace; human health; phytopharmaceuticals; winemaking
Abstract:
... The winemaking grape pomaces are rich in bioactive phytochemicals and dietary fibre (DF). DFs are phenolic-rich DF matrix and are dietary supplement with benefits on human health. As a result of the increased attention to sustainability of winemaking by-products, efforts have been made to use grape pomace in different bio-industries. In this review, we summarize the existing knowledge on the bioac ...
DOI:
10.1016/j.foodchem.2014.07.057

23. Advanced biopolymer-coated drug-releasing titania nanotubes (TNTs) implants with simultaneously enhanced osteoblast adhesion and antibacterial properties

Author:
Tushar Kumeria; Htwe Mon; Moom Sinn Aw; Karan Gulati; Abel Santos; Hans J. Griesser; Dusan Losic
Source:
Colloids and Surfaces B: Biointerfaces 2015 v.130 pp. 255-263
ISSN:
0927-7765
Subject:
Gram-positive bacteria; Staphylococcus epidermidis; adhesion; antibacterial properties; bacterial colonization; bacterial infections; biofilm; biopolymers; cell adhesion; chitosan; coatings; colloids; drugs; electrochemistry; electron microscopy; fluorescence; gentamicin; nanotubes; osteoblasts; prostheses; titanium; titanium dioxide; trinitrotoluene
Abstract:
... Here, we report on the development of advanced biopolymer-coated drug-releasing implants based on titanium (Ti) featuring titania nanotubes (TNTs) on its surface. These TNT arrays were fabricated on the Ti surface by electrochemical anodization, followed by the loading and release of a model antibiotic drug, gentamicin. The osteoblastic adhesion and antibacterial properties of these TNT–Ti samples ...
DOI:
10.1016/j.colsurfb.2015.04.021

24. Advanced construction of heterostructured InCrO₄–TiO₂ and its dual properties of greater UV-photocatalytic and antibacterial activity

Author:
J. Kamalakkannan; V. L. Chandraboss; S. Prabha; S. Senthilvelan
Source:
RSC advances 2015 v.5 no.94 pp. 77000-77013
ISSN:
2046-2069
Subject:
Bacillus subtilis; Fourier transform infrared spectroscopy; Vibrio cholerae; X-ray diffraction; antibacterial properties; coprecipitation; coumarin; energy-dispersive X-ray analysis; fluorescence; hydroxyl radicals; irradiation; malachite green; methylene blue; nanomaterials; pH; photocatalysis; photocatalysts; photolysis; scanning electron microscopy; semiconductors; titanium dioxide; ultraviolet radiation
Abstract:
... The development of coupled semiconductor oxides has led to significant advances in photocatalytic functional materials. In this article, we report the preparation of a nano-spherical InCrO₄-loaded TiO₂ photocatalyst by a simple co-precipitation method. The InCrO₄–TiO₂ (ICT) nanomaterial was characterized using XRD, SEM with EDX, FT-IR, FT-Raman and PL analysis. The photocatalytic activity of InCrO ...
DOI:
10.1039/c4ra12453g

25. Advanced trends in controlling Helicobacter pylori infections using functional and therapeutically supplements in baby milk

Author:
Gamal M. Hamad; Tarek H. Taha; Nehal M. El-Deeb; Ali M. A. Alshehri
Source:
Journal of food science and technology 2015 v.52 no.12 pp. 8156-8163
ISSN:
0022-1155
Subject:
Helicobacter pylori; adults; alkaloids; alternative medicine; amino acids; antibacterial properties; antibiotic resistance; antibiotics; bacteria; children; cloves; cumin; flavonoids; gastritis; ginger; humans; infants; licorice; milk; pathogens; pepper; plant extracts; pomegranates; proteins; proton pump inhibitors; reducing sugars; sage; saponins; stomach neoplasms; stomach ulcers; tannins; terpenoids
Abstract:
... Helicobacter pylori is a common human pathogen infecting about 30 % of children and 60 % of adults worldwide. It is responsible for diseases such as gastritis, peptic ulcer and gastric cancer. H. pylori treatment based on antibiotics with proton pump inhibitor, but therapy failure is shown to be higher than 20 % and is essentially due to an increasing in prevalence of antibiotic-resistant bacteria ...
DOI:
10.1007/s13197-015-1875-3
PubMed:
26604389
PubMed Central:
PMC4648882

26. Ag Nanoparticle-Loaded Hierarchical Superamphiphobic Surface on an Al Substrate with Enhanced Anticorrosion and Antibacterial Properties

Author:
Liu Ying; Cao Huaijie; Chen Shougang; Wang Daoai
Source:
The Journal of Physical Chemistry C 2015 v.119 no.45 pp. 25449-25456
ISSN:
1932-7455
Subject:
absorption; aluminum; antibacterial properties; corrosion; dielectric spectroscopy; hydrophobicity; microstructure; nanopores; nanosilver; silver
Abstract:
... This paper presents a facile method for preparing Ag nanoparticle (NP)-loaded superamphiphobic surfaces on an Al substrate with efficient anticorrosion and antibacterial properties. A hierarchical steplike microstructure with nanopores is fabricated on an Al surface through facile chemical etching and anodization; subsequent fluorination confers superhydrophobic and superoleophobic properties to t ...
DOI:
10.1021/acs.jpcc.5b08679

27. Aggregation behaviours and bactericidal activities of novel cationic surfactants functionalized with amides and ether groups

Author:
Guangzhou Cao; Xiangfeng Guo; Lihua Jia; Xuhua Tian
Source:
RSC advances 2015 v.5 no.34 pp. 27197-27204
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; amides; antibacterial properties; aqueous solutions; cationic surfactants; chemical structure; chlorides; electrical conductivity; electrospray ionization mass spectrometry; nuclear magnetic resonance spectroscopy; surface tension; temperature; thermodynamics
Abstract:
... A series of novel cationic surfactants, N-alkylcaramoylmethyl-N-[2-(2-phenoxyacetamido)-ethyl]-N,N-dimethylammonium chloride, were synthesized and their chemical structures were characterized using ¹H-NMR, ¹³C-NMR, ESI-MS and FT-IR. Their aggregation behaviours in aqueous solution were systematically investigated by surface tension and electrical conductivity methods. It was found that the surfact ...
DOI:
10.1039/c4ra14645j

28. Aktivitas Antibakteri Ekstrak Kerang Pisau (Solen sp.) dan Kerang Simping (Placuna placenta)

Author:
Ika Rochmawati; Muslimin Ibrahim; Reni Ambarwati
Source:
Biosaintifika 2015 v.7 no.2 pp. -
ISSN:
2338-7610
Subject:
Escherichia coli; Staphylococcus aureus; analysis of variance; antibacterial properties; chloramphenicol; ethyl acetate; hexane; methanol; oysters; placenta; Indonesia
Abstract:
...

Penelitian ini bertujuan menguji aktivitas antibakteri ekstrak kerang pisau dan kerang simping dalam menghambat pertumbuhan bakteri uji berdasarkan zona jernih yang terbentuk dan menentukan jenis ekstrak kerang yang paling optimal dalam menghambat pertumbuhan bakteri uji. Kerang pisau yang diperoleh dari Pantai Talang Siring Madura dan kerang simping yang diperoleh dari Lamongan diekstrak denga ...

DOI:
10.15294/biosaintifika.v7i2.3956

29. Alditol thiacrowns via a ring-closing metathesis of carbohydrate-derived α,ω-dithioallylethers

Author:
Mohammed Benazza; Alain Danquigny; Guy Novogrocki; Luca Valgimigli; Riccardo Amorati; Fiammetta Ferroni; Catherine Demailly-Mullie; Aloysius Siriwardena; David Lesur; Frédérick Aubry; Gilles Demailly
Source:
Tetrahedron 2015 v.71 pp. 5602-5609
ISSN:
0040-4020
Subject:
chemical reactions; hydrogen peroxide; catalysts; mannitol; chemical structure; antibacterial properties
Abstract:
... We report a newly developed synthesis of a number of alditol thiacrowns using an eco-friendly and versatile two-step strategy: the regioselective thioallyletherification of a polyhydroxylated alditol followed by a ring closing metathesis using the Grubbs second generation catalyst. This approach allows a series of target thiacrown products to be obtained in acceptable to good yields, from the corr ...
DOI:
10.1016/j.tet.2015.06.049

30. Alginate/gum acacia bipolymeric nanohydrogels—Promising carrier for Zinc oxide nanoparticles

Author:
Meenu Chopra; Manju Bernela; Pawan Kaur; Anju Manuja; Balvinder Kumar; Rajesh Thakur
Source:
International journal of biological macromolecules 2015 v.72 pp. 827-833
ISSN:
0141-8130
Subject:
Cercopithecus aethiops; Pseudomonas aeruginosa; antibacterial properties; antibiotic resistance; biological models; cytotoxicity; glutaraldehyde; gum arabic; kidneys; microorganisms; nanoparticles; sodium alginate; zinc oxide
Abstract:
... Zinc oxide nanoparticles (ZnO nps) are known to be effective against a wide array of microorganisms. At nanoscale, they have higher toxicity and they need to be rendered less toxic and more biocompatible. To achieve this, ZnO nps were incorporated in nanohydrogel particles made out of sodium alginate/gum acacia and cross-linker glutaraldehyde in order to ensure their gradual and sustained release ...
DOI:
10.1016/j.ijbiomac.2014.09.037

31. Alkanna orientalis (L.) Boiss. plant isolated cultures and antimicrobial activity of their extracts: phenomenon, dependence on different factors and effects on some membrane-associated properties of bacteria

Author:
Margarit Petrosyan; Yekaterina Shcherbakova; Naira Sahakyan; Zaruhi Vardanyan; Anna Poladyan; Yuri Popov; Armen Trchounian
Source:
Plant cell, tissue, and organ culture 2015 v.122 no.3 pp. 727-738
ISSN:
0167-6857
Subject:
Alkanna; Enterococcus hirae; Gram-positive bacteria; Lactobacillus acidophilus; adenosinetriphosphatase; agar; anti-infective agents; antibacterial properties; callus; food industry; herbal medicines; high performance liquid chromatography; lactic acid bacteria; medicine; microbial growth; minimum inhibitory concentration; potassium; protons; shikonin; specific ion electrodes; tissue culture; yeasts
Abstract:
... Herbal medicine requires searching for new sources with antimicrobial activity. Alkanna sp. (Boraginaceae) is widely used in medicine due to detoxification and antibacterial effects. The aim of this study was to obtain Alkanna orientalis (L.) Boiss. plant callus extracts, to investigate antimicrobial activity of extracts against bacteria and yeast and to reveal responsible mechanisms. Callus tissu ...
DOI:
10.1007/s11240-015-0806-3

32. Alkanna tinctoria leaves extracts: a prospective remedy against multidrug resistant human pathogenic bacteria

Author:
Usman Ali Khan; Hazir Rahman; Muhammad Qasim; Anwar Hussain; Azizullah Azizllah; Waheed Murad; Zakir Khan; Muhammad Anees; Muhammad Adnan
Source:
BMC complementary and alternative medicine 2015 v.15 no.1 pp. 127
ISSN:
1472-6882
Subject:
Acinetobacter baumannii; Alkanna; Escherichia coli; Pseudomonas aeruginosa; Staphylococcus aureus; alternative medicine; antibacterial properties; chloroform; ethanol; herbal medicines; hexane; imipenem; microbial activity; multiple drug resistance; pathogens; people; phytochemicals; Pakistan
Abstract:
... BACKGROUND: Plants are rich source of chemical compounds that are used to accomplish biological activity. Indigenously crude extracts of plants are widely used as herbal medicine for the treatment of infections by people of different ethnic groups. The present investigation was carried out to evaluate the biological potential of Alkanna tinctoria leaves extract from district Charsadda, Pakistan ag ...
DOI:
10.1186/s12906-015-0646-z

33. Alpha amylase assisted synthesis of TiO2 nanoparticles: Structural characterization and application as antibacterial agents

Author:
Razi Ahmad; Mohd Mohsin; Tokeer Ahmad; Meryam Sardar
Source:
Journal of hazardous materials 2015 v.283 pp. 171-177
ISSN:
0304-3894
Subject:
Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray diffraction; alpha-amylase; antibacterial properties; antibiotics; bacteria; cell walls; confocal microscopy; minimum inhibitory concentration; nanoparticles; titanium dioxide; transmission electron microscopy
Abstract:
... The enzyme alpha amylase was used as the sole reducing and capping agent for the synthesis of TiO2 nanoparticles. The biosynthesized nanoparticles were characterized by X-ray diffraction (XRD) and transmission electron microscopic (TEM) methods. The XRD data confirms the monophasic crystalline nature of the nanoparticles formed. TEM data shows that the morphology of nanoparticles depends upon the ...
DOI:
10.1016/j.jhazmat.2014.08.073

34. Alterations in the antibacterial potential of Synechococcus spp. PCC7942 under the influence of UV-B radiations on skin pathogens

Author:
Nida Fatima; Iffat Zareen Ahmad; Hera Chaudhry
Source:
Saudi Journal of Biological Sciences 2015 pp. -
ISSN:
1319-562X
Subject:
Synechococcus; active oxygen species; algicides; antibacterial properties; antibiotics; antioxidants; aquatic organisms; bacteria; bioactive compounds; carotenoids; cytotoxicity; dose response; drugs; metabolites; methanol; pathogens; phycocyanin; solvents; ultraviolet radiation
Abstract:
... Marine organisms are seen as a source of novel drugs and the discovery of new pharmaceutical is increasingly in demand. Cyanobacteria are regarded as a potential target for this as antibacterial, antiviral, antifungal, algicide and cytotoxic activities have been reported in these organisms. They have been identified as a new and rich source of bioactive compounds belonging to diversified groups. R ...
DOI:
10.1016/j.sjbs.2015.10.014
PubMed:
30294232
PubMed Central:
PMC6169429

35. Alternative treatment of vaginal infections – in vitro antimicrobial and toxic effects of Coriandrum sativum L. and Thymus vulgaris L. essential oils

Author:
M. Bogavac; M. Karaman; Lj. Janjušević; J. Sudji; B. Radovanović; Z. Novaković; J. Simeunović; B. Božin
Source:
Journal of applied microbiology 2015 v.119 no.3 pp. 697-710
ISSN:
1364-5072
Subject:
Artemia; Candida albicans; Coriandrum sativum; Enterococcus; Escherichia coli; Proteus mirabilis; Staphylococcus aureus; Thymus vulgaris; anti-infective agents; antibacterial properties; antifungal properties; bacteria; bioassays; chemical composition; essential oils; gas chromatography-mass spectrometry; lethal concentration 50; minimum inhibitory concentration; oils; spectrophotometers; thyme; toxicity; yeasts
Abstract:
... AIMS: The aims of study were to examine the antibacterial potential of two commercial essential oils (EOs) from coriander (Coriandrum sativum L.) and thyme (Thymus vulgaris L.) against vaginal clinical strains of bacteria and yeast and their chemical composition. METHODS AND RESULTS: Antimicrobial activities of commercial essential oils were determined using macro‐diffusion (disc, well) and micro‐ ...
DOI:
10.1111/jam.12883

36. Altitude and Growth Stage Specific Variations in Antimicrobial Activity of Darjeeling Himalayan Pellia Endiviifolia against Selected Human Pathogens

Author:
Abhijit Dey; Souryadeep Mukherjee; Arijit De
Source:
Journal of herbs, spices & medicinal plants 2015 v.21 no.1 pp. 102-110
ISSN:
1540-3580
Subject:
Enterobacter cloacae; Serratia marcescens; Shigella dysenteriae; Staphylococcus aureus; altitude; antibacterial properties; antibiosis; developmental stages; ethanol; herbs; humans; medicinal plants; methanol; minimum inhibitory concentration; mosses and liverworts; pathogens; spices; thallus; Himalayan region
Abstract:
... Antibacterial activity of methanol and ethanol extracts of vegetative and reproductive thalli of the liverwort Pellia endiviifolia from eastern Himalaya were tested against Staphylococcus aureus (ATCC 25923), Shigella dysenteriae (ATCC 9361), Enterobacter cloacae (ATCC 13047), and Serratia marcescens (ATCC 13880) strains by well diffusion assay, minimum inhibitory concentration, and minimum bacter ...
DOI:
10.1080/10496475.2014.918915

37. Altitudinal Variation of Anti-Human-Pathogenic-Bacterial Activity and Antioxidative Properties of Darjeeling Himalayan Marchantia polymorpha L.

Author:
Arijit De; Souryadeep Mukherjee; Abhijit Dey
Source:
Journal of Biologically Active Products from Nature 2015 v.5 no.1 pp. 33-42
ISSN:
2231-1874
Subject:
Bacillus cereus; Bryopsida; Marchantia polymorpha; agar; algae; altitude; antibacterial properties; antioxidant activity; antioxidants; cytotoxicity; ferns and fern allies; flavonoids; methanol; mosses and liverworts; pathogens; phenolic compounds; secondary metabolites; shigellosis; therapeutics
Abstract:
... Bryophytes, phylogentically placed between alga and pteridophytes, lacks mechanical protection but protects itself form the pathogens and other detrimental factors of nature by the use of its secondary metabolites. Diverse pharmacological attributes viz. antibacterial, antifungal, cytotoxic, antioxidant etc. of the bryophytes has been reported mainly due to these secondary metabolites. Among the t ...
DOI:
10.1080/22311866.2015.1015610

38. Amino acid derived highly luminescent, heteroatom-doped carbon dots for label-free detection of Cd²⁺/Fe³⁺, cell imaging and enhanced antibacterial activity

Author:
Paramita Karfa; Ekta Roy; Santanu Patra; Sunil Kumar; Abhrajyoti Tarafdar; Rashmi Madhuri; Prashant K. Sharma
Source:
RSC advances 2015 v.5 no.72 pp. 58141-58153
ISSN:
2046-2069
Subject:
Escherichia coli; antibacterial properties; arginine; aspartic acid; cadmium; carbon quantum dots; cysteine; detection limit; fluorescence; glutamic acid; glutamine; gold; hydrogen peroxide; image analysis; iron; lysine; metal ions; methionine; minimum inhibitory concentration; nanocomposites; neoplasm cells; neoplasms; photocatalysis; tyrosine; water solubility
Abstract:
... A facile, economic and one-step synthesis strategy was applied for the synthesis of highly fluorescent water-soluble heteroatom doped carbon dots (CDs) from eight different amino acids viz., arginine, cysteine, glutamic acid, glutamine, aspartic acid, lysine, tyrosine, and methionine. Based on the higher quantum yield (38%) cysteine derived CDs were selected to explore their multi-functional behav ...
DOI:
10.1039/c5ra09525e

39. Amino acid mediated synthesis of silver nanoparticles and preparation of antimicrobial agar/silver nanoparticles composite films

Author:
Shiv Shankar; Jong-Whan Rhim
Source:
Carbohydrate polymers 2015 v.130 pp. 353-363
ISSN:
0144-8617
Subject:
Escherichia coli; Listeria monocytogenes; X-ray diffraction; absorption; agar; antibacterial properties; color; contact angle; crystal structure; films (materials); food packaging; food pathogens; nanocomposites; nanosilver; permeability; tensile strength; thermal stability; transmittance; tryptophan; tyrosine; water content; water vapor
Abstract:
... Silver nanoparticles (AgNPs) were synthesized using amino acids (tyrosine and tryptophan) as reducing and capping agents, and they were incorporated into the agar to prepare antimicrobial composite films. The AgNPs solutions exhibited characteristic absorption peak at 420nm that showed a red shift to ∼434nm after forming composite with agar. XRD data demonstrated the crystalline structure of AgNPs ...
DOI:
10.1016/j.carbpol.2015.05.018

40. Ammoides pusilla (Apiaceae) and Thymus munbyanus (Lamiaceae) from Algeria essential oils: chemical composition, antimicrobial, antioxidant and antiproliferative activities

Author:
C. Tefiani; A. Riazi; F. Youcefi; S. Aazza; C. Gago; M.L. Faleiro; L.G. Pedro; J.G. Barroso; A.C. Figueiredo; C. Megías; I. Cortés-Giraldo; J. Vioque; M.G. Miguel
Source:
Journal of essential oil research 2015 v.27 no.2 pp. 131-139
ISSN:
2163-8152
Subject:
Apiaceae; Escherichia coli; Lamiaceae; Listeria monocytogenes; Salmonella enterica; Staphylococcus aureus; agar; antibacterial properties; antibiotic resistance; antioxidants; bacteria; carvacrol; chemical composition; cumin; essential oils; free radicals; gamma-terpinene; humans; lipid peroxidation; methicillin; neoplasm cells; serotypes; thymol; Algeria
Abstract:
... The chemical composition, and antioxidant, antimicrobial and anti-proliferative activities of the essential oils of Ammoides pusilla (Apiaceae) and Thymus munbyanus (Lamiaceae), collected in Algeria, were studied. Cumin alcohol (44%), p -cymene (18%), limonene (14%), thymol (11%) and γ-terpinene (7%) predominated in A . pusilla essential oil, whereas carvacrol (71%) was dominant in T . munbyanus e ...
DOI:
10.1080/10412905.2015.1006739

41. Analysis and evaluation of antibacterial effects of new herbal formulas, AP-001 and AP-002, against Escherichia coli O157:H7

Author:
Mohammadreza Rezaei Golestani; Mehrnaz Rad; Mohammadreza Bassami; Amir Afkhami-Goli
Source:
Life sciences 2015 v.135 pp. 22-26
ISSN:
0024-3205
Subject:
Allium cepa; Allium sativum; Dianthus caryophyllus; Escherichia coli O157; Eucalyptus globulus; Mentha piperita; Mentha spicata; Salvia officinalis; Thymus vulgaris; antibacterial properties; antibiotic resistance; antibiotics; clinical trials; essential oils; herbal medicines; medicine; microorganisms; minimum inhibitory concentration; poultry industry
Abstract:
... Over the last few years, there has been an increasing interest in the use of natural substances for promoting human and animal health. Antibiotic resistance, enhanced by excessive use of antibiotics, has encouraged human and animal health authorities to consider and employ alternative approaches, including herbal and botanical medicine to combat invading microorganisms. Herein, the essential oils ...
DOI:
10.1016/j.lfs.2015.05.007

42. Analysis of anti-bacterial and anti oxidative activity of Azadirachta indica bark using various solvents extracts

Author:
Raid Al Akeel; Ayesha Mateen; K. Janardhan; V.C. Gupta
Source:
Saudi Journal of Biological Sciences 2015 pp. -
ISSN:
1319-562X
Subject:
Azadirachta indica; Salmonella Typhi; agar; antibacterial properties; antioxidant activity; antioxidants; bacteria; bark; drugs; erythromycin; ethanol; health services; medicine; methanol; microbial growth; solvents
Abstract:
... Herbal medications have been used for relief of symptoms of disease. Regardless of the great advances observed in current medicine in recent decades, plants still make a significant contribution to health care. An alarming increase in bacterial strains resistant to a number of antimicrobial agents demands that a renewed effort be made to seek antibacterial agents effective against pathogenic bacte ...
DOI:
10.1016/j.sjbs.2015.08.006
PubMed:
28053565
PubMed Central:
PMC5198926

43. Anatase titanium dioxide loaded polylactide membranous films: preparation, characterization, and antibacterial activity assessment

Author:
Aysin Dural-Erem; Hasan Hakan Erem; Gulay Ozcan; Mikael Skrifvars
Source:
The journal of the Textile Institute 2015 v.106 no.6 pp. 571-576
ISSN:
1754-2340
Subject:
Klebsiella pneumoniae; Staphylococcus aureus; absorption; antibacterial properties; bacteria; crystallization; glass transition temperature; mechanical properties; melting; melting point; nanocomposites; nanoparticles; polylactic acid; thermal analysis; titanium dioxide
Abstract:
... In this study, the preparation method and characteristics of anatase titanium dioxide (TiO ₂) nanoparticle-loaded polylactide (PLA) films and their antibacterial efficacy against Klebsiella pneumoniae (ATCC 4352) and Staphylococcus aureus (ATCC 6538) bacterium were studied. A series of PLA nanocomposites containing, respectively, 0, 1, and 5% (wt.) titanium dioxide (TiO ₂) nanoparticles were prepa ...
DOI:
10.1080/00405000.2014.929274

44. Angucyclines and Angucyclinones from Streptomyces sp. CB01913 Featuring C-Ring Cleavage and Expansion

Author:
Ma Ming; Rateb Mostafa E.; Teng Qihui; Yang Dong; Rudolf Jeffrey D.; Zhu Xiangcheng; Huang Yong; Zhao Li-Xing; Jiang Yi; Li Xiuling; Rader Christoph; Duan Yanwen; Shen Ben
Source:
Journal of natural products 2015 v.78 no.10 pp. 2471-2480
ISSN:
1520-6025
Subject:
Streptomyces; acyl coenzyme A; amino acids; anthracenes; antibacterial properties; anticarcinogenic activity; condensation reactions; cytotoxicity; glycosylation; neoplasms; oxidation; polyketide synthases; polyketides; sugars
Abstract:
... Angucyclines and angucyclinones are aromatic polyketides with a tetracyclic benz[a]anthracene skeleton. The benz[a]anthracene scaffold is biosynthesized by type II polyketide synthases that catalyze the decarboxylative condensation of a short acyl-CoA starter and nine extender units. Angucyclines and angucyclinones, the largest group of polycyclic aromatic polyketides, achieve structural diversity ...
DOI:
10.1021/acs.jnatprod.5b00601
PubMed:
26335269
PubMed Central:
PMC4845661

45. Antagonistic effects of indoloquinazoline alkaloids on antimycobacterial activity of evocarpine

Author:
C. Hochfellner; D. Evangelopoulos; M. Zloh; A. Wube; J.D. Guzman; T.D. McHugh; O. Kunert; S. Bhakta; F. Bucar
Source:
Journal of applied microbiology 2015 v.118 no.4 pp. 864-872
ISSN:
1364-5072
Subject:
Mycobacterium tuberculosis; alkaloids; antibacterial properties; multiple drug resistance; screening; tuberculosis
Abstract:
... AIMS: The interaction of quinolone and indoloquinazoline alkaloids concerning their antimycobacterial activity was studied. METHODS AND RESULTS: The antimycobacterial and modulating activity of evodiamine (1), rutaecarpine (2) and evocarpine (3) was tested on mycobacteria including three multidrug‐resistant (MDR) clinical isolates of Mycobacterium tuberculosis. Antagonistic effects were concluded ...
DOI:
10.1111/jam.12753

46. Anti-biofilm properties of wound dressing incorporating nonrelease polycationic antimicrobials

Author:
Livnat Atar-Froyman; Anat Sharon; Ervin I. Weiss; Yael Houri-Haddad; Dana Kesler-Shvero; Abraham J. Domb; Raphael Pilo; Nurit Beyth
Source:
Biomaterials 2015 v.46 pp. 141-148
ISSN:
0142-9612
Subject:
anti-infective agents; antibacterial properties; bacteria; biocompatibility; crosslinking; head and neck neoplasms; nanoparticles; patients; polyethyleneimine; quaternary ammonium compounds
Abstract:
... Polycationic nanoparticles show biocompatible, broad-spectrum bactericidal properties in vitro and in vivo when incorporated in denture lining material post-maxillectomy in head and neck cancer patients. In the present study, the synthesized Crosslinked quaternary ammonium polyethylenimine nanoparticles were found to have a strong bactericidal activity against a wide variety of microorganisms rapi ...
DOI:
10.1016/j.biomaterials.2014.12.047

47. Anti-endotoxic and antibacterial effects of a dermal substitute coated with host defense peptides

Author:
Gopinath Kasetty; Martina Kalle; Matthias Mörgelin; Jan C. Brune; Artur Schmidtchen
Source:
Biomaterials 2015 v.53 pp. 415-425
ISSN:
0142-9612
Subject:
Escherichia coli; Pseudomonas aeruginosa; Staphylococcus aureus; antibacterial properties; antiseptics; bacteria; biocompatible materials; cytokines; dermis; electron microscopy; humans; lipopolysaccharides; monocytes; surgery; transcription factor NF-kappa B; washing
Abstract:
... Biomaterials used during surgery and wound treatment are of increasing importance in modern medical care. In the present study we set out to evaluate the addition of thrombin-derived host defense peptides to human acellular dermis (hAD, i.e. epiflex®). Antimicrobial activity of the functionalized hAD was demonstrated using radial diffusion and viable count assays against Gram-negative Escherichia ...
DOI:
10.1016/j.biomaterials.2015.02.111

48. Anti-infective potential of caffeic acid and epicatechin 3-gallate isolated from methanol extract of Euphorbia hirta (L.) against Pseudomonas aeruginosa

Author:
S. Perumal; R. Mahmud; S. Ramanathan
Source:
Natural product research 2015 v.29 no.18 pp. 1766-1769
ISSN:
1478-6427
Subject:
Euphorbia hirta; Pseudomonas aeruginosa; aerial parts; antibacterial properties; caffeic acid; epicatechin; fractionation; gastrointestinal system; high performance liquid chromatography; methanol; minimum inhibitory concentration; pathogens; spectroscopy; Malaysia
Abstract:
... Euphorbia hirta (L.) plant is traditionally used in Malaysia for the treatment of gastrointestinal, bronchial and respiratory ailments caused by nosocomial infectious agents. Bioactivity-guided fractionation of the methanol extract of the aerial parts of E. hirta and analysis using high-performance liquid chromatography have led to the isolation of two antibacterial compounds. These compounds were ...
DOI:
10.1080/14786419.2014.999242

49. Anti-microbial efficiency of nano silver–silica modified geopolymer mortar for eco-friendly green construction technology

Author:
Dibyendu Adak; Manas Sarkar; Moumita Maiti; Abiral Tamang; Saroj Mandal; Brajadulal Chattopadhyay
Source:
RSC advances 2015 v.5 no.79 pp. 64037-64045
ISSN:
2046-2069
Subject:
Gram-negative bacteria; X-ray diffraction; adsorption; ambient temperature; antibacterial properties; cell walls; cement; construction technology; durability; energy-dispersive X-ray analysis; minimum inhibitory concentration; mortality; nanocomposites; nanoparticles; nanosilver; polymers; reactive oxygen species; silica; silver; spectral analysis; strength (mechanics)
Abstract:
... A silver–silica nano composite based geopolymer mortar has been developed by simple adsorption of silver in a suitable amount of a colloidal silica suspension for anti-bacterial property development. The silver nanoparticles (3–7 nm) were attached on the surface of 20–50 nm sized silica nanoparticles. The silver–silica nano-composite was characterized by Transmission Electron Microscopy (TEM), X-R ...
DOI:
10.1039/c5ra12776a

50. Anti-sessile bacterial and cytocompatibility properties of CHX-loaded nanohydroxyapatite

Author:
J. Barros; L. Grenho; M.H. Fernandes; C.M. Manuel; L.F. Melo; O.C. Nunes; F.J. Monteiro; M.P. Ferraz
Source:
Colloids and Surfaces B: Biointerfaces 2015 v.130 pp. 305-314
ISSN:
0927-7765
Subject:
Escherichia coli; Staphylococcus aureus; Staphylococcus epidermidis; adsorption; antibacterial properties; bacterial adhesion; biocompatibility; biofilm; bone substitutes; chlorhexidine; coatings; colloids; electrostatic interactions; fibroblasts; medical equipment; phosphates
Abstract:
... Nanohydroxyapatite possesses exceptional biocompatibility and bioactivity regarding bone cells and tissues, justifying its use as a coating material or as a bone substitute. Unfortunately, this feature may also encourage bacterial adhesion and biofilm formation. Surface functionalization with antimicrobials is a promising strategy to reduce the likelihood of bacterial infestation and colonization ...
DOI:
10.1016/j.colsurfb.2015.04.034