Calcium Dependent Reversible Aggregation of Escherichia coli Biomimicking Vesicles Enables Formation of Supported Vesicle Layers on Silicon Dioxide

" Active Transport of Calcium in Inverted Vesicles of Escherichia coli

A discrete population of cells of the endocrine pancreas contains immunoreactive somatostatin as shown by immunofluorescence. These cells are different from those containing glucagon or insulin. This unexpected observation may be of physiopathological significance in the regulatory mechanisms involved in the secretion of glucagon and insulin. Somatostatin is an oligopeptide with the primary seq...

effect of postharvest application of chitosan and calcium chloride on decay and quality attributes of sweet cherry

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Formation of supported lipid bilayers of charged E. coli lipids on modified gold by vesicle fusion

We describe a simple way of fusing E. coli lipid vesicles onto a gold surface. Supported lipid bilayers on metal surfaces are interesting for several reasons: transducing a biological signal to an electric readout, using surface analytical tools such as Surface Plasmon Resonance (SPR), Infrared Reflection Absorption Spectroscopy, Neutron Reflectivity or Electrochemistry. The most widely used me...

ATP-Dependent Persister Formation in Escherichia coli

Persisters are dormant variants that form a subpopulation of cells tolerant to antibiotics. Persisters are largely responsible for the recalcitrance of chronic infections to therapy. In Escherichia coli, one widely accepted model of persister formation holds that stochastic accumulation of ppGpp causes activation of the Lon protease that degrades antitoxins; active toxins then inhibit translati...

Effect of Alkaline-Acid Treatment on the Biomimetic Formation of Calcium Phosphate Layers on Titanium Substrates:An In Vitro Study