PPT-STABILITY OF COLLOIDS Kausar

Ahmad httpstaffiiumedumyakausar akausariiumedumy Physical Pharmacy 2 1 CONTENTS Lecture 1 1 Nonionic SAA and Phase Inversion Temperature 2 Stabilisation factors Electrical stabilisation. Before discussing the stability test let us rst introduce the following notions of stabilit y for a linear time invariant LTI system 1 BIBO stability or zero state stbaility 2 Internal stability or zero input stability Since we have not introduced t DR AMINA TARIQ. BIOCHEMISTRY. COLLOIDAL STATE. Colloids are a type of mixture. It is composed of two phases: . Dispersion medium and dispersed phase.. Colloids are the mixtures in which dispersion . phase. Can you name an example of a colloid?. Colloids. are mixtures with particles intermediate in size between solutions and suspensions (particle size 1 nm to 1000 nm). You cannot see the individual particles.. Colloids and suspensions are heterogeneous . mixtures. Suspensions and Colloids. Suspensions and colloids are NOT solutions. . Suspensions. : The particles are so large that they settle out of the solvent if not constantly stirred.. Module 8: "Stability of Colloids"Lecture 40: "" The Lecture Contains:Slow CoagulationOther Factors affecting Kinetics of Coagulation Objectives_templatefile:///E|/courses/colloid_interface_science/lec Training of New Converts. (. Tarbiyat. . Nau. . Muba’i’in. ). Majlis. . Ansarullah. USA. January 22. nd. , 2012. Ansar. Leadership Conference . 2012. Bait-us-. Samee. , Houston, TX. New Converts . TCP. . Peter Key. MSR Cambridge. Outline. Simple TCP models. Utility Maximisation - a framework for fairness. General Framework. TCP examples. Stability, Delay and Stochastic Stability. Stochastic arrivals. Suspensions:. Heterogeneous mixtures. Relatively large particles. e.g. whole blood. many medicines (Shake well before using). Classes of solutions. True Solutions. (Suspensions). Colloidal Solutions. Anaesthetic. Practice. G . Ogweno. Dept of Medical Physiology. Kenyatta University. Why Colloids over crystalloids?. Crystalloids. :. Extravasate. =only 25% remains in circulation after 20 . mins. used for . (. Tarbiyat. . Nau. . Muba’i’in. ). January . 19. th. -20. th. , 2013. (. Majlis. . Ansarullah. USA . - ALC). . (Administrative Handbook 2013 – pages 45-46) . New Converts . (Dec. 2012). Two Methods. Which isotopes?. Binding Energy. What holds an atom together?. Forces of Nature and Atomic Structure:. Band (Island) of Stability. N/Z ratio. Number of stable isotopes. Isotope trends among the elements:. 1. /60. N. Denkov, S. Tcholakova, I. Lesov, D. Cholakova, S. K. Smoukov. Self-Shaping of Oil Droplets via the Formation of Intermediate Rotator Phases . upon . Cooling, . Nature. . 528. (2015) 392–395. Typical size of . particleate. found in surface water are listed in the table below:. Masterial. . Particle diameter. Viruses. . 0.. 005 – 0.01. Bacteria . 0.3 – 3.0. Small colloids . 0.001 – 0.1. . . Particles dispersed in liquid media may become charged mainly in one of two ways :. The first involve selective adsorption of a particular ionic species present in solution.. Second : charges on particles arises from ionization of groups (such as COOH) that may be situated at the surface of the particles..