LITHORISK.COM: the novel version of a software for calculating and visualizing the risk of renal stone.

Estimation of state of saturation with stone-forming salt represents a reliable tool to assess the overall risk. The available methods are based on computer-assisted ab initio calculations. Our earlier method URSUS was subsequently substituted by Lithorisk®, a software including visualization of risk profiles.

Iron Coordination Properties of Gramibactin as Model for the New Class of Diazeniumdiolate Based Siderophores.

Gramibactin (GBT) is an archetype for the new class of diazeniumdiolate siderophores, produced by Paraburkholderia graminis, a cereal-associated rhizosphere bacterium, for which a detailed solution thermodynamic study exploring the iron coordination properties is reported. The acid-base behavior of gramibactin as well as its complexing ability toward Fe was studied over a wide range of pH values (2≤pH≤11). For the latter the ligand-competition method employing EDTA was used.

Interaction of N-acetyl-l-cysteine with Na, Ca, Mg and Zn. Thermodynamic aspects, chemical speciation and sequestering ability in natural fluids.

The estimation of thermodynamic parameters of N-Acetyl-L-cysteine (NAC) protonation were determined in NaCl, (CH)NCl, (CH)NI employing various temperature and ionic strengths conditions, by potentiometric measurements. The interaction of NAC with some essential metal cations (, Ca, Mg and Zn) was investigated as well at 298.15 K in NaCl in the ionic strength range 0.

8-Hydroxyquinoline-2-Carboxylic Acid as Possible Molybdophore: A Multi-Technique Approach to Define Its Chemical Speciation, Coordination and Sequestering Ability in Aqueous Solution.

8-hydroxyquinoline-2-carboxylic acid () has been found in high concentrations (0.5-5.0 mmol·dm) in the gut of Noctuid larvae (and in a few other lepidopterans), in which it is proposed to act as a siderophore.

Understanding the Solution Behavior of Epinephrine in the Presence of Toxic Cations: A Thermodynamic Investigation in Different Experimental Conditions.

The interactions of epinephrine (()-(-)-3,4-dihydroxy-α-(methylaminomethyl)benzyl alcohol; ) with different toxic cations (methylmercury(II): CHHg; dimethyltin(IV): (CH)Sn; dioxouranium(VI): UO) were studied in NaCl at different ionic strengths and at = 298.15 K ( = 310.15 K for (CH)Sn).