A temperature independent pH (TIP) buffer for biomedical biophysical applications at low temperatures.
نویسندگان
چکیده
A temperature independent pH buffer has been developed from a combination of buffers of opposite-sign temperature coefficients, and utility in low temperature spectroscopy and storage of pH sensitive compounds is demonstrated.
منابع مشابه
The Ballistic Behavior of High Strength, Low Alloy-100 Steel at Sub-zero Temperatures
The ballistic response of the high strength, low alloy (HSLA-100) steel at ambient and temperatures of -400°C, -800°C and -1960°C is investigated in this work. Lambert-jonas equation is used to fit the experimental results into a curve. The effect of quenching on ballistic behavior of HSLA-100 is also studied. The experiments are conducted on 3mm thick rectangular specimens impacted by blunt ti...
متن کاملHydrostatic pressure effects on rabbit and echinoderm myosin ATPase.
When saturated with ATP, sea cucumber myosin hydrolyzes ATP about 15 times more slowly than rabbit myosin, as expected from the slower contraction time of the muscle. The Arrhenius plots coincide at low temperatures, but only the rabbit plot changes slope at higher temperatures. This unexpected change in slope apparently results from the use of Verona1 buffer. At high substrate concentrations i...
متن کاملHigh efficient Perovskite solar cells base on Niobium Doped TiO2 as a Buffer Layer
Here, the effect of lightly Niobium doped TiO2 layer on the performance of perovskite solar cells has been studied by using solar cell capacitance simulator (SCAPS). N addition, the effects of Niobium concentration, buffer film thickness and operating temperature on the performance of the perovskite solar cell are investigated. For doping level of 3.0 mol% into the TiO2 layer, cell efficiency o...
متن کاملZeta potential in intact natural sandstones at elevated temperatures
We report measurements of the zeta potential of natural sandstones saturated with NaCl electrolytes of varying ionic strengths at temperatures up to 150°C. The zeta potential is always negative but decreases in magnitude with increasing temperature at low ionic strength (0.01M) and is independent of temperature at high ionic strength (0.5M). The pH also decreases with increasing temperature at ...
متن کاملFormulation and some biological uses of a buffer mixture whose buffering capacity is relatively independent of pH in the range pH 4-9.
A mixture is described which has a buffering capacity which is essentially independent of pH in the range pH 4.0-9.0. It is shown how this buffer mixture may be used to determine the force-flux relationship of proton transfer between two aqueous phases separated by a phospholipid bilayer in vesicular systems and so demonstrate that this relationship is linear over a wide range of delta mu appro...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Chemical communications
دوره 7 شماره
صفحات -
تاریخ انتشار 2008