Antibacterial Agents
Mostrando 25-36 de 434 artigos, teses e dissertações.
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25. Preparation of Zinc Oxide-Nanoclay Hybrids by Alkaline Ion Exchange Method
Abstract ZnO/nanoclay hybrids are synthesized by a single-step solid-state reaction using ZnCl2 as a reagent. These hybrids were prepared by a simple alkaline ion exchange method, without using any surfactant or chelating agents. By adjusting the reagent’s immersion time in molten salt, production of pure ZnO/nanoclay hybrids was achieved. Synthesized hybr
Braz. J. Chem. Eng.. Publicado em: 2017-10
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26. Phytofabrication of silver nanoparticles using Myriostachya wightiana as a novel bioresource, and evaluation of their biological activities
ABSTRACT Nanobiotechnology deals with the properties of nanomaterials and their potential uses. Here we report for the first time novel, cost-effective and eco-friendly method for the rapid green synthesis of silver nanoparticles (AgNPs) using leaf extracts of Myriostachya wightiana. The growth of silver nanoparticles was monitored by UV-vis spectroscopy co
Braz. arch. biol. technol.. Publicado em: 17/08/2017
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27. The effect of silver nanoparticles on composite shear bond strength to dentin with different adhesion protocols
Abstract In Dentistry, restorative materials and oral bacteria are believed to be responsible for restoration failure. To make long-lasting restorations, antibacterial agents should be made. Inorganic nanoparticles and their nano composites are applied as good antibacterial agents. Objective The purpose of this study was to investigate the effect of silver
J. Appl. Oral Sci.. Publicado em: 2017-08
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28. Investigation of phytochemical contents, in vitro antioxidant and antibacterial behavior and in vivo anti-inflammatory potential of Ecballium elaterium methanol fruits extract
Abstract Ecballium elaterium species are mostly used as therapeutic agents and food ingredient. The current work was designed to investigate phytochemical contents, antioxidant, antibacterial, and anti-inflammatory properties of methanol fruits extract of Ecballium elaterium. Good antioxidant activity was observed with IC50 values of 156 ± 4 and 377 ± 6 μ
Food Sci. Technol. Publicado em: 02/05/2017
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29. Solvent extraction effects on phytochemical constituents profiles, antioxidant and antimicrobial activities and functional group analysis of Ecballium elaterium seeds and peels fruits
Abstract Ecballium elaterium is a perennial herb with multiple medicinal properties. It was widely used in folk medicine as cathartic, anti-inflammatory and analgesic agents. The present study was devoted to investigate the effect of diethyl ether, acetone, and methanol solvent on the extraction, phytochemicals profiles, antioxidant and antimicrobial activit
Food Sci. Technol. Publicado em: 27/04/2017
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30. Trichilia catigua: therapeutic and cosmetic values
ABSTRACT Medicinal plants play an important role in human health care. It is estimated that about 25–30% of all drugs are evaluated as therapeutic agents derived from natural products. Research in the pharmaceutical industry has demonstrated that for complex diseases, natural products still represent a valuable source for the production of new chemical com
Rev. bras. farmacogn.. Publicado em: 2017-04
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31. Exopolysaccharide dispelled by calcium hydroxide with volatile vehicles related to bactericidal effect for root canal medication
ABSTRACT Objective: Enterococcus faecalis is the dominant microbial species responsible for persistent apical periodontitis with ability to deeply penetrate into the dentin. Exopolysaccharides (EPS) contribute to the pathogenicity and antibiotic resistance of E. faecalis. Our aim was to investigate the antimicrobial activity of calcium hydroxide (CH), camph
J. Appl. Oral Sci.. Publicado em: 2016-10
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32. Synthesis and Anti-Staphylococcal Activity of 2,4-Disubstituted Diphenylamines
Infections caused by Staphylococcus aureus are ubiquitous and life threatening. Evolution of resistant strains has necessitated the need to continuously discover new drugs to combat such organisms. Diphenyl ethers, such as triclosan, have recently shown potential as antibacterial agents. In this study, a series of diphenyl amines were synthesized and evaluat
J. Braz. Chem. Soc.. Publicado em: 2016-06
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33. Antimicrobial activities of six essential oils commonly used as condiments in Brazil against Clostridium perfringens
Abstract Despite recent advances in food production technology, food-borne diseases (FBD) remain a challenging public health concern. In several countries, including Brazil, Clostridium perfringens is among the five main causative agents of food-borne diseases. The present study determines antimicrobial activities of essential oils of six condiments commonly
Braz. J. Microbiol.. Publicado em: 2016-06
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34. Synthesis of some novel enzyme inhibitors and antibacterial agents derived from 5-(1-(4-tosyl)piperidin-4-yl)-1,3,4-oxadiazol-2-thiol
RESUMO Tendo em vista a importância farmacológica da porção 1,3,4-oxadiazol, sintetizou-se uma série de novos derivados S-substituídos, 5a-h, de 5-(1-(4-tosi)piperidin-4-il)-1,3,4-oxadiazol-2-tiol (3). A reação do cloreto de p-toluenossulfonila (a), com isonipecotato de (b) etila forneceu 1-(4-tosil)piperidin-4-carboxilato de metila (1), que foi, em
Braz. J. Pharm. Sci.. Publicado em: 2016-03
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35. Antibacterial potential of a basic phospholipase A2(VRV-PL-VIIIa) from Daboia russelii pulchella (Russell's viper) venom
Abstract Background: Microbial/bacterial resistance against antibiotics poses a serious threat to public health. Furthermore, the side effects of these antibiotics have stimulated tremendous interest in developing new molecules from diverse organisms as therapeutic agents. This study evaluates the antibacterial potential o
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 11/08/2015
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36. MRSA from Santa Catarina State, Southern Brazil: intriguing epidemiological differences compared to other Brazilian regions
Methicillin-resistant Staphylococcus aureus(MRSA) is one of the most frequently isolated agents in both nosocomial and community settings. It is a constant challenge for antibacterial therapy. Therefore, it becomes essential to understand the epidemiology of MRSA isolates in the institution and/or region to guide empirical therapy. The objective of this stud
Braz J Infect Dis. Publicado em: 2015-08