Various antibacterial factors in saliva have been demonstrated 2,1"2 la but none seem to have been isolated. A "lytic" agent in saliva and a purified lysozyme from eggwhite seem similar in their effect on Micrococcus Iysodeikticus,"9"' although the two have been shown to be immunologically distinct.10 Inasmuch as separation of protein elements in saliva, by means of paper electrophoresis, has b...

Robust, high-strength and environmentally friendly antibacterial composite films were prepared by simply blending konjac glucomannan (KGM) and silver nanowires (Ag NWs) in an aqueous system. The samples were then characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), thermal gravimetric analysis, mechanical property tests, Fourier transform infrared spectra (FT-IR), X-...

bacterial resistance is a major drawback in chemotherapy of infectious diseases. in this investigation a new series of 3,5-diarylamide dihydropyridines containing 2-benzylsulfonylimidazol at 4 position have been synthesized and studied for their enhancing effect on the antibacterial activities of different penicillins against a resistant clinical isolate of s. aureus using disc diffusion method...

Background: Because of increasing resistance to current antibiotics, many attempts have been made by the researchers to find new compounds of plant derivatives as substitute for non-effective antibiotics. This research was performed to study the antibacterial properties of aquatic and alcoholic extracts of thyme on the clinical and standard strains of enterohemorrhagic Escherichia coli. Materi...

Objective: To observe synergistic antibacterial effect of Er yanning in vitro. Methods: The Er Yanning NO1 (the main component of rheum officinale), No2 (main component of Scutellaria baicalensis, phellodendron bark) and Er yanning NO1-NO2 compatibility antibacterial activity were detected against anaerobic bacteria and aerobic bacteria. Results: No 1 anaerobic obviously, No 2 on aerobic bacter...

The antibacterial effect of aqueous extracts at a concentration of 1% (v/v) and 5% (w/w) of oregano, marjoram, sage and licorice herbs, widely used as soft drinks and food flavors, were evaluated against E. coli and B. subtilis under in vitro conditions in tryptone soya yeast extract broth at 35°C and in milk and labneh respectively. All tested herbal aqueous extracts demonstrated an inhibitory...

background: escherichia coli and staphylococcus aureus as important food-borne pathogens are the main concerns of food producers and consumers which create a lot of problems worldwide. the objective of this study was to investigate the inhibitory effect of monolaurin alone and in combination with edta on viability of e. coli and s. aureus in culture media and iranian white cheese. methods: the ...

AIM To evaluate and compare the antibacterial efficacy of turmeric extract as an intracanal medicament against E. faecalis and its effect on the microhardness of root dentin in comparison with calcium hydroxide and 2% chlorhexidine gel. MATERIALS AND METHODS One hundred and fourty dentin blocks were prepared from 70 extracted human single-rooted teeth and standardized. For antibacterial asses...

Oral biofilms are associated with the most common infections of the oral cavity. Bacteria embedded in the biofilms are less sensitive to antibacterial agents than planktonic bacteria are. Recently, an antibacterial synergic effect of noncoherent blue light and hydrogen peroxide (H(2)O(2)) on planktonic Streptococcus mutans was demonstrated. In this study, we tested the effect of a combination o...