نتایج جستجو برای: ionophores

تعداد نتایج: 4101  

Journal: :The Journal of Experimental Medicine 1984
V Raso J Lawrence

The highly selective cytotoxicity of site-directed ricin A chain conjugates can be potentiated by membrane-active carboxylic ionophores. The combined use of the two agents results in much faster inactivation of ribosomes and subsequent cell death and lysis. The potency of A chain cytotoxins is correspondingly increased by several orders of magnitude and cells that sparsely express the target an...

Journal: :Organic & biomolecular chemistry 2005
W Matthew Leevy Seth T Gammon Tatiana Levchenko David D Daranciang Oscar Murillo Vladimir Torchilin David Piwnica-Worms James E Huettner George W Gokel

Hydraphile compounds are shown to be cytotoxic to Gram-negative and Gram-positive bacteria, yeast, and mammalian cells. Their cellular toxicity compares favorably with other synthetic ionophores and rivals that potency of natural antibiotics. The effects of structural variations on toxicity are described. The effects of these variations correlate well with previous studies of ion transport in l...

Journal: :Applied and environmental microbiology 2006
Klaus Michalke Jörg Meyer Reinhard Hensel

Octamethylcyclotetrasiloxane (OMCTS), a common constituent of household products, triggers the transformation of bismuth to the volatile toxic derivative trimethylbismuth by Methanosarcina barkeri, which is a representative member of the sewage sludge microflora. Comparative studies with the ionophores monensin and lasalocid, which induce effects similar to those observed for OMCTS, indicated t...

Journal: :IEEE Sensors Journal 2022

We present and validate an equilibrium model based on the Poisson-Boltzmann equations that includes main ingredients to simulate ion-sensitive membranes in context of electrochemical potentiometric sensors with without ionophores. With respect phase boundary models, our spatial resolution electrostatic potential concentrations. The enables study Nernstian non-Nernstian responses, helps improvin...

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