OBJECTIVES This study evaluated the microleakage at the implant/abutment interface of external hexagon (eH) implants and abutments with different amounts of bacteria and tightening torques. MATERIAL AND METHODS A bacterial suspension was prepared to inoculate the implants. The first phase of this study used nine EH implants and abutments that were divided into three groups with different amou...

China is a country that is arousing a large amount of interest as a new mega-market, as it opens itself to a market-orientated economy and expands at a remarkable rate. However, the influx of international investment, new business opportunities and advertising from overseas has seen Chinese consumers being exposed to potentially offensive advertising products and images. While some products and...

This paper describes how the technique of surface plasmon resonance (SPR) can be utilized to follow (in real time) the attachment of Pseudomonas aeruginosa bacteria on bare gold and gold modified with a self-assembled monolayer (SAM) of mercaptounadecanoic acid. We show that SPR is able to discriminate between the adsorption of live versus dead (thermally shocked) bacteria. Moreover, the SPR di...

In the present study high efficiency Agrobacterium tumefaciens mediated transformation system of wheat (Triticum aestivum L.) cv. Inqilab-91 was developed by exploiting bacterial culture density and acetosyringone concentration. Agrobacterium strain EHA101 harboring binary vector pIG121Hm, containing gene for GUS activity and hygromycin resistance was used in transformation experiments. Differe...

Enterotoxigenic Escherichia coli K99 is one of the dominant pathogens associated with diarrhea of calves. Immunoglobulin Y (IgY), has been used as an inexpensive alternative to antibiotics for the prevention and therapy of several bacterial infections. The study aimed to prepare IgY antibodies against E. coli K99 and to investigate its in vitro effectiveness. E. c...

The green alga Planktochlorella nurekis (Chlorellaceae, Chlorophyta) is considered a producer of antibacterial mixture of long-chain fatty acids, which has possibly similar composition and mode of action as chlorellin produced by another green alga, Chlorella vulgaris. Although the antibacterial properties of C. vulgaris have been reported, the interactions of P. nurekis with bacteria have not ...

JOCHEN MÜLLER-EHMSEN,1,3 PADMAJA JUVVADI,1 CURTIS B. THOMPSON,1 LUSINE TUMYAN,1 MICHELLE CROYLE,2 JERRY B. LINGREL,2 ROBERT H. G. SCHWINGER,3 ALICIA A. MCDONOUGH,1 AND ROBERT A. FARLEY1 1Department of Physiology and Biophysics, Keck School of Medicine, University of Southern California, Los Angeles, California 90033; 2Department of Molecular Genetics, Biochemistry, and Microbiology, College of ...

After frog auricles have been in contact with a suspension of bacteria or bacteria-free supernatant fluid, newly synthesized bacterial ribonucleic acid (RNA) is recovered in animal cells. It appears that the presence of bacterial deoxyribonucleic acid (DNA)-dependent RNA polymerase is necessary for the transcription of bacterial DNA in the host cells. This phenomenon seems to be related to a tr...