An increase of the degree of D-alanylation of teichoic acids in Lactococcus lactis resulted in a significant increase of bacterial resistance toward the cationic antimicrobials nisin and lysozyme, whereas the absence of D-alanylation led to a decreased resistance toward the same compounds. In contrast, the same variations of the D-alanylation degree did not modify bacterial cell surface charge and hydrophobicity. Bacterial adhesion to polystyrene and glass surfaces was not modified either.
- American Society for Microbiology
- Variations in the degree of d-alanylation of teichoic acids in ...
Variations in the degree of d-alanylation of teichoic acids in lactococcus lactis alter resistance to cationic antimicrobials but have no effect on bacterial surface hydrophobicity and charge
Courtesy of American Society for Microbiology
New paper about “Enhanced corrosion resistance of metal surfaces by film forming amines”
Kurita, SABIC, CR Competence and Malmö University put their heads together for FFA research. We encourage you to read this paper about “Enhanced corrosion resistance of metal surfaces by film forming amines: A comparative study between cyclohexanamine and 2-(diethylamino) ethanolbased formulations”.
Not All Stainless Steel Resists Corrosion
For Municipalities and Municipal Utilities Authorities struggling to deal with corrosion issues, knowing where to turn when faced with these challenges can be daunting. Logan Township Municipal Utilities Authority, of NJ was faced with such problems when it was discovered that a five year old stainless steel headworks tank at their wastewater treatment facility was experiencing extreme Microbiological Induced Corrosion (MIC) at the waterline with corrosion severe enough to open holes through the tank wall....
Using Resistivity for Basalt Site Characterization - Case Study
Purpose A mining company in Turkey hoped to determine existing and new alternative basalt zones at an existing basalt mining site by using Electrical Resistivity Imaging (ERI). Process Our client, Ali Karan, used 84 electrodes spaced at 10 meters and two lines 5 meters apart inside the study area. The dipole-gradient array was used to collect the 2D electrical resistivity imaging data set. Results Resistivity imaging mapped the vertical and lateral limits of basalt zones successfully. The ground truth was...
2D Resistivity Imaging for Locating Concrete Pipe - Case Study
Background There are 8 wells that suply water to the communnity through about 2m diamter concrete aqueduct. Purpose The main subject of the field tes was to determine the geotechnical site characterization of the area to correlate the results obtained through the 2D resistivity imaging and the infromation of the concrete aqueduct. Process The determination of site characterization was performed by AGI SuperSting Wi-Fi R8/IP/SP instrument with 42 electrodes and 3 meters electrode spacing with a mixed array...
Triclosan resistant bacteria in sewage effluent and cross-resistance to antibiotics
The purpose of this study was to identify triclosan tolerant heterotrophic plate count (HPC) bacteria from sewage effluent and to determine cross-resistance to antibiotics. R2 agar supplemented with triclosan was utilised to isolate triclosan resistant bacteria and 16S rRNA gene sequencing was conducted to identify the isolates. Minimum inhibitory concentrations (MICs) of organisms were determined at selected concentrations of triclosan and cross-resistance to various antibiotics was performed. High-performance...