Study of the binding between lysozyme and C10-TAB: Determination and interpretation of the partial properties of protein and surfactant at infinite dilution

Morgado, Jorge; Aquino-Olivos, Marco A.; Martínez-Hernández, Ranulfo; Corea, M.; Grolier, J.-P.E.; Rı́o, José Manuel del

doi:10.1016/j.bpc.2008.03.002

Cited by 6 publications

(4 citation statements)

References 36 publications

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“…In addition it has been found experimentally that the variation in volume during the denaturation of lysozyme by a strong denaturant is very close to zero [12]. In our case, we have found that Δv Δ F;1 can be neglected in the process of binding deciltrimethylammonium bromide to lysozyme [5] (see Figure 8). Supposing Δv Δ F;1 ≈ 0 in Equation (125) (in Appendix 1: “Limits at infinite dilution in multicomponent systems”), then:

Δ v_{3; 1, 2}^{Δ} \approx 0

…”

Section: Discussionsupporting

confidence: 55%

“…In addition to this, it is possible to demonstrate that when the interactions between two components are maximum, the heat dq 3;1,2 /dns 3 obtained is zero. In a previous work [5], we demonstrated that if the plot of j o F;1 as function of a variable of composition is linear for a range of compositions of F, then the interactions between the components of the fraction are maximum in that range. The composition variable employed was the mass fraction of component 3 in the fraction (t f3 ).…”

Section: Discussionmentioning

confidence: 90%

“…In other words [5,6], in a region of saturation of interactions, component 2 is interacting with a part of component 3 to form a fraction with constant composition. A fraction with constant composition is named a “pseudo-component [4–6].…”

Section: Discussionmentioning

confidence: 99%

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On the Physical Meaning of the Isothermal Titration Calorimetry Measurements in Calorimeters with Full Cells

Grolier

Rı́o

2009

IJMS

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We have performed a detailed study of the thermodynamics of the titration process in an isothermal titration calorimeter with full cells. We show that the relationship between the enthalpy and the heat measured is better described in terms of the equation Δ H = Winj + Q (where Winj is the work necessary to carry out the titration) than in terms of ΔH = Q. Moreover, we show that the heat of interaction between two components is related to the partial enthalpy of interaction at infinite dilution of the titrant component, as well as to its partial volume of interaction at infinite dilution.

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Δ v_{3; 1, 2}^{Δ} \approx 0

…”

Section: Discussionsupporting

confidence: 55%

Section: Discussionmentioning

confidence: 90%

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On the Physical Meaning of the Isothermal Titration Calorimetry Measurements in Calorimeters with Full Cells

Grolier

Rı́o

2009

IJMS

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“…At the point when an exothermic response happens in arrangement in a calorimeter [10], the Heat delivered by the response is consumed by the arrangement, which builds its temperature. At the point when an endothermic response happens [11], the Heat required is retained from the warm vitality of the arrangement [12], which diminishes its temperature.…”

Section: Introductionmentioning

confidence: 99%

Specific Heat of Solution of HCl-NaOH Reaction by a Simple Handmade Calorimeter

Fazal-ur-Rahman¹,

Haider²

2017

J Phys Chem Biophys

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A research study was performed by couple of students under the research project of bachelor in chemistry. The main goal to perform this project was to determine the changes in temperature of solution when an acid and a base were mixed together inside the cups of handmade calorimeter and their reaction was proceeded under the lab conditions and to determine either reaction would be exothermic or endothermic. Basically, from these changes in temperature of solution, the specific Heat of solution or Heat of reaction was determining. Temperature changes were observed using analytical thermometer with stop watch and all changes were noted on datasheet, while after completion of the whole experimental work, a thermodynamic equation of specific Heat was applied to calculate the Specific Heat of solution mathematically in numeric value which was 3214.72476 J or 3.21472 KJ. It was seen that as the base was mixed into acid, the temperature of solution was increased to maximum rapidly showing the exothermic reaction. After reaching to maximum range, the temperature decreased gradually to its minimum range being constant and consistent. The consistent temperature range terminated the reaction. All variations in temperature ranges were recorded very carefully and a table with a graph showing all ups and downs in temperature ranges was drawn on MS Excel Data Sheet.

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From Solutions to Polymers: A High Temperature–High Pressure Journey in Experimental Thermodynamics

Grolier

2015

J Solution Chem

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International audienceSince the early ages any progress in thermodynamics, in fact its birth itself, results from the observation of phenomena combining heat and mechanical effects. This is also true in chemical thermodynamics. In addition, in particular in solution thermodynamics, chemical effects must be taken into account. From this point of view, solution thermodynamics is a science of observation developed from judicially conceived experimental measurements that characterize and quantify the contributions of the chemical species involved. Using the formal rather simple scheme of basic relations built from equally simple thermodynamic principles, the thermodynamic behavior resulting from the chemical interactions of an investigated chemical system can be related to the chemical potentials of the system’s components. Experimental thermodynamics is a science by itself. In this context, calorimetric techniques play a major role in providing essential data used to build theoretical models capable of being used further in chemical engineering applications. Heats of mixing, heats of interaction, and heats of dilution constitute the primary data to be measured. After a short review of the thermodynamic formalism and basic relations, the state of the art in solution calorimetry to determine the above heats is described. For an in-depth study of molecular interactions, the pressure as well as the temperature dependence of these thermodynamic properties must be documented. The thermophysical properties that are the second derivatives of the Gibbs energy with respect to temperature and pressure are of paramount importance since they can be related directly to the molecular level, opening windows to molecular thermodynamics. Scanning transitiometry, which can provide experimentally all the thermophysical properties, is described in detail. I give from my personal march in the field a view of the most recent developments in experimental techniques including their extensions to operate over extended temperature and pressure ranges. Selected striking results in pure liquids and mixtures, and in polymer systems, serve to illustrate the role of well-designed experimental techniques in providing exclusive data of the best quality. The aim was indeed to stress also the pivotal role and impetus of Robert H. Wood in modern chemical thermodynamics

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Study of the binding between lysozyme and C10-TAB: Determination and interpretation of the partial properties of protein and surfactant at infinite dilution

Cited by 6 publications

References 36 publications

On the Physical Meaning of the Isothermal Titration Calorimetry Measurements in Calorimeters with Full Cells

On the Physical Meaning of the Isothermal Titration Calorimetry Measurements in Calorimeters with Full Cells

Specific Heat of Solution of HCl-NaOH Reaction by a Simple Handmade Calorimeter

From Solutions to Polymers: A High Temperature–High Pressure Journey in Experimental Thermodynamics

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