A Paradoxical Relation between Zeta Potential and Suspension Stability in S and R Variants of Intestinal Bacteria
نویسندگان
چکیده
The relation between electrokinetic potential and suspension stability of four strains of non-flagellate intestinal bacteria has been studied. The smooth forms have zeta-potentials which approximate zero over a wide range of pH and salt concentration, yet nevertheless form stable suspensions. The rough variants have zeta-potentials which vary with pH and electrolyte concentration in the familiar way. The rough forms have values of zeta-potential critical for their suspension stability.
منابع مشابه
Dispersion Properties of Nano YSZ Particles in Aqueous Suspensions
In the present research, the aqueous suspensions of nano-sized YSZ particles were prepared using a common and available dispersant (Dolapix CE64) at different pH values and their stability were evaluated through the sedimentation height, viscosity measurement, and microstructural observation. Different amounts of dispersant were tested and the optimum percentage was examined by measuring the vi...
متن کاملPreparation of CuO/Water Nanofluids Using Polyvinylpyrolidone and a Survey on Its Stability and Thermal Conductivity
In this article CuO/water nanofluid was synthesized by using polyvinylpyrolidone (PVP) as the dispersant. Thenanofluid stability period and the heat transfer enhancement were determinedby measuring the thermal conductivities. To study the nano-fluid stability, zeta (ζ) potential, and absorbency were measured under different pH values and PVP surfactant concentrations; also thermal conductivity...
متن کاملStability and Rheological Behavior of Sulfonated Polyacrylamide/ Laponite Nanoparticles Dispersions in Electrolyte Media
Due to the importance of nanoparticles stability in industrial applications, in this research, stability of laponite nanoparticles dispersions containing different concentrations of sodium sulfonated polyacrylamide (SPA) was investigated in electrolyte media for oil reservoirs applications. In this regard, effect of parameters such as polymer concentration, temperature, and ionic strength were ...
متن کاملThe Effect of Suspension and Conventional Core Stability Exercises on Characteristics of Intervertebral Disc and Chronic Pain in Office Staff Due to Lumbar Herniated Disc
Background: The purpose of this study was to identify the effects of eight weeks of conventional and suspension corestability exercises by use of the designed device on characteristic of intervertebral discs in low back pain.Methods: A total of 27 men with chronic low back (CLB) pain due to lumbar disc herniation in L4-L5 and L5-S1 regionswere enrolled in this quasi-experiment...
متن کاملEffects of prebiotic Immunogen on growth performance, intestinal bacteria colonization, and survival rate in Rutilus kutum fry
This study was carried out to determine the effects of Immunogen as a prebiotic on growth-related parameters and gut micro-flora in R. kutum fry. A basal diet was formulated using common feed ingredients supplemented with Immunogen at 0, 1, 1.5, and 2 g kg-1 leading to four experimental diets. Fish were randomly distributed in 500 L fiberglass tanks (1×1×0.5 m). The experiment lasted for eight ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- The Journal of General Physiology
دوره 18 شماره
صفحات -
تاریخ انتشار 2003