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What are protein denaturants and how do surface tension friccohesity and viscosity obtained with survismeter infer unfolding and binding of proteins?
Wiki User
∙ 15y ago
Urea, guanidinehydrogenchloride and Dithioerythritol are protein denaturants, and SDS (sodiumdodecylsulfate) and PEG (polyethylenglycol) as binders. Ammoniumtetramethylenedithiocarbamate[ATMDC], ammoniumpyrrolidonedithocarbamate [APDC], tetramethylammoniumbromide [TMAB] and pentaalkylammoniumbromidehexaethyl [PAABHE] surfactants are stronger protein denaturants. How do N, N' methyl urea derivatives behave in this context are yet to be investigated, so hydrophilic and hydrophobic interactions do ascertain a denauration mechanism. The densities (r/kg m-3), apparent molal volumes (Vf/m3mol-1), viscosities (h/N s m-2), surface tension (g/N m-1) and friccohesity (s m-1) of urea, 1-methylurea, 1, 3-dimethylurea and 1, 1, 3, 3-tetramethylurea illustrate molecular structures. The surface tension, friccohesity and viscosities are measured with Survismeter together. Limiting densities, apparent molal volumes, intrinsic viscosities and surface tension data infer solvent interactions. The partial molal volumes contributions of -CH3 are derived from the limiting data of ureas which notice weakening of hydrophilic and strengthening of hydrophobic interactions with the -CH3 numbers due to occupation of hydrogen bonding sites. The hydrophilic-hydrophilic interaction shift towards the hydrophilic-hydrophobic interaction from urea to tetramethylurea.
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∙ 15y ago
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Conditons in which color and viscosity of saliva changes?
causes are change the color and viscosity saliva
How the viscosity of a liquid affect how quickly an object can move through it?
Viscosity describes a fluid's resistance to flow or change in form, essentially measuring thickness of a liquid in everyday terms. The higher the viscosity the slower an object can pass though it; likewise, the lower the viscosity the faster an object will be able to move though it.For example: You can move a spoon more easily though a bowl of water than through a bowl of honey. The water is less viscous (thinner) compared to the (thick) honey.
What is the SI unit of kinematic viscosity?
Kinematic viscosity is the ratio of dynamic viscosity to density of the fluid. The SI unit of the quantity is square meter per second (symbol m²/s). The most frequent used unit of kinematic viscosity is Centistokes (cSt). 1 Centistokes (cSt) is the kinematic viscosity of a fluid with dynamic viscosity of 1 cP and volumic mass 1 g/cm³.
What is the kinematic viscosity of Demineralised water?
viscocity of dm water
What is the Viscosity of Cerebrospinal Fluid?
0.7-1 mPa*s (or cP).
Does survismeter measure osmolarity?
The survismeter measures osmolarity by developing a standard calibration between PCI (Physicochemical indicators such as viscosity, surface tension, friccohesity) and known values of osmolarity of some molecule.
Use each of the following terms in a separate sentence viscosity and surface tension?
Viscosity and surface tension of liquid sample are indispensable friccohesity chemistry. The water dipoles if are 100% aligned then cohesive forces are higher and viscosity comparatively could be lower. The water dipoles are haphazardly aligned with different cohesive and adhesive forces. The viscosity explain the interlaminar frictional forces as the haphazardly aligned molecules develop stronger interlayer interaction resisting a flow. For such haphazardly aligned liquid develop comparatively weaker cohesive forces or the lower surface tension. Therefore, the viscosity and surface tension work hand in hand and both are measured using survismeter. The sur stands for surface tension while the vis for the viscosity. The friccohesity gives a new physicochemical profile of molecular mixtures especially the nanoformulations. The friccohesity is calculated using the Man Singh equation. Their detailed understanding could be attained by going through the Survismeter and Friccohesity books
How does survismeter help pharmaceutical sciences?
Survismeter, a laboratory apparatus, measures surface tension (ST), Interfacial Tension (IFT) and Viscosity together without any external forces like electric, magnetic etc. Vertical pressure gradient in vertical units of the survismeter works well to operate this instrument. The pressure gradient may manauly be developed using simple piston pump. The ST, IFT and viscosity are fundamental data to characterize the pharmaceutical formulations. So their availability together is an asset in the hands of pharmaceutical and biophysical scientists.The survismeter in single step process measures surface tension,interracialtension, viscosity, particle size and state of emulsions.Previouslyviscosmeter, tensiometer were used for these parameters but now survismeter is in use. There is saying that "those who don't run with wheel they remain there onlywhereverthey were so it is better to run with wheel of train so as to move with time andmaintainpace with fast developments"
What is the difference between viscosity and surface tension?
Viscosity is the resistance of flow and surface tension is the lateral force of the bonds between the molecules. Of course, viscosity is resistance of flow and surface tension of lateral force but viscosity is s display of frictional force during laminar flow caused due to intermolecular forces. The surface tension is a function of cohesive forces generated by intermolecular forces among similar molecules. Very rightly since both the parameters are dynamic in natures and hence a 3rd parameter noted as friccohesity is most advanced version of the contribution of the intermolecular forces operational in liquid dynamic behavior. The friccohesity along with surface tension, viscosity, wetting coefficient, interfacial tension are measured with borosil mansingh survismeter.
Why is recovery of pollutants from waste materials difficult and how do survismeter and econoburette help to minimize discharge of pollutants from laboratories?
The pollutants in general, are chemicals which have well defined molecular structure with definite electronic configuration. Due to different kind of electronic profile, the molecules develop molecular forces which lead to initiate complex molecular, ionic, and mixed interactions which do not easily allow separation of the molecular mixtures. Their separation needs intensified and different treatment with improvised methods to reduce intake of pollutants. The survismeter and Econoburette are the equipments of the same kinds which reduce reuse recycle and redesion the chemicals being used in analysis for quality control and formulation of the end products. The survismeter measures surface tension, interfacial tension, wetting coefficient, viscosity and Friccohesity together while the Econoburette conducts titration using chemicals at semimicro scale. So both the equipments reduce intake and also prevent discharge of chemicals to environment.
Will dishwashing liquid affect viscosity?
Viscosity of a fluid is mainly influenced by the friction caused by the interactions between its molecules. Therefore a dishwashing liquid or reagent does not affect the viscosity of water, it only affect its surface tension. .
What is the History of surface tension?
It would appear that the more general question of various organicmoleculesaffecting the surface tension of water was something known to the ancientGreeks and Romans. Pliny the Elder (23-79 AD) wrote of divers adding oil to water to make it easier to see to the bottom. However, the first person to try to put things on an experimental footing was none other than Benjamin Franklin. He studied the effects of oil in smoothing wind ripples on pond and began the investigations of the effect of organic substances on surface tension.However, with regard to soap, it would appear that the first person to study this scientifically was Agnes Pockels (1862-1935). She was an "amateur" German scientist.Tosan Omaghomi(toriomas@yahoo.co.uk) Ukraine.
Why to waste time and resources for surface tension interfacial tension wetting coefficient surface area of a supramolecules and viscosity with individual apparatus when survismeter meaures together?
Time of students and resources of country are valuable and all efforts must be made to save and make smart use. Since inception of surface tension, interfacial tension, wetting coefficient, surface area and viscosity are being measured with individual apparatuses with manifolds wastages. There was no combination and permutation of the measuring devices for centuries but now Singapore and Indian Govts patents numbers 126089 and 232429 respectively offer survismeter for measurements together with 95% saving. The universities, technological institutes and R & D centers must take note of this invention in national interests and for fascination of science.
What is the difference between viscosity and viscosity index?
Viscosity is resistance to flow of oil Viscosity Index is a scale to measure viscosity
Does soda have a low viscosity?
The viscosity is similar to the viscosity of water.
What is the term for the thickness of a liquid?
Viscosity is the measure of the resistance of a liquid. This is often thought of as the thickness of a liquid.
What has Low density and high viscosity?
honey has high viscosity lah, and water has low viscosity. anything that resists flow has high viscosity...lah. honey has high viscosity lah, and water has low viscosity. anything that resists flow has high viscosity...lah.
