2). 2. Here we are asking pure Physical Pharmacy Multiple choice questions. Physical Pharmacy- 2nd Year: 3rd Sem (Practical) . After your registration you can enter into the Quiz. To be able study and analyze drug complexes. This process is composed of two consecutive stages. Ionic Solutions and Electrolytic Equilibria 8. 2.5. University of Helsinki . The first two volumes cover the role of surface forces, while the third looks at colloid stability and its application in pharmacy. &Course&Title!Pharmaceutical!Calculation &Academic&System!Semester It!involves!computation!of!pharmaceutical!ingredients,!dosage! Students can solve NCERT Class 12 Chemistry Surface Chemistry MCQs Pdf with Answers to know their preparation level. Give equation involved in this method. One sub-field of interfacial phenomena (surface science) focuses on the interface between a solid and a low-density gas or partial vacuum. 2.5.2.1 The nature of interfacial forces 2.5.2.2 Calculation of polar and dispersion forces 2.5.3 Theory of non-additive surface energy components 2.5.3.1 Calculation of acid-base surface energy parameters 2.5.4 Equation of state approaches 2.6 Estimating surface energies by use of immersional calorimetry 73 Complexation and Protein Binding ... PART C MULTIPLE CHOICE QUESTIONS. Phase Equilibrium and Phase Rule 1 2 Phase Rule Two Component Systems Three Component Systems 3-4 3. Give applications of interfacial phenomena in pharmacy. Liquid Interfaces 3). What is the main result of adding surfactants into a liquid composed of two immiscible phases such as oil and water? In some cases the dosage form itself contains a number of interfaces. Dispersion systems. (9.16) : Determine the surface activity, surface concentration, from the measurement of σ as a function of c2. Pharmaceutical Emulsions 223. 46 Physical Pharmacy 47 (8.314 J mol –1 K ), T is temperature in kelvins, c is the concentration in mol m–3 and x has a value of 1 for ionic surfactants in dilute solution. 5 colloidal dispersions. The interfacial energy is responsible for the I n t e r f a c i a l Phenomena 4). Give applications of surface tension phenomena. Classify interfaces with examples. Literature has shown that the formation of microstructure on metal surface is the key to the quality of metal–polymer assemblies. consist of particulate matter, known as dispersed phase, distributed throughout a continuous phase or dispersion medium. Write applications of surface free energy equation in pharmacy? Define interface and inter-facial phase. Physical Pharmacy Assignment Define interface and inter-facial phase. For convenience, we shall divide these various combinations into two groups, namely liquid interfaces and solid interfaces. May 12, 2018. Colloidal Dispersions 191. Encyclopedia of Interface Chemistry: Surface Science and Electrochemistry summarizes the current, basic knowledge of interface chemistry, giving readers the latest advances in the field. Standard bulk characterisation techniques are unable ACADEMIC DISSERTATION . For example, active pharmaceutical ingredient (API) distribution and morphology can be markedly different on the surface of a tablet as compared to the bulk material (11). 1. Comprehensive MCQs in Physical Pharmacy. Rheology 6. Interfacial Phenomena Several types of interface can exist, depending on whether the two adjacent phases are in the solid, liquid or gaseous state. STATES OF MATTER. For drugs to have a pharmacological effect, they must either interact with or pass through a number of interfaces. A simple picture can be made using a capacitor as an example. 4 Characteristics of colloids • Continuous phase and dispersed phase • Thermodynamically unstable but kinetically stable (i.e. Under these conditions, there are a variety of electron probe spectroscopies that provide fundamental information on the structure of the surface and/or molecules on it. &Course&Title!Pharmaceutical!Calculation &Academic&System!Semester It!involves!computation!of!pharmaceutical!ingredients,!dosage! c) Catalysation of a chemical reaction between the phases. To correlate the concepts of interfacial phenomena with the formulation and stability of colloidal preparations. 0 reviews. 555, boul. Phase-III: (c)Second falling rate period. Interfacial Phenomena in Pharmaceutical Low Moisture Content Powder Processing . → decrease in interfacial tension , σ For a surface active material (surfactant), x2γ2 = c2] ln [1 2 (1) 2 d c d RT σ z Practical application of Eq. Physical pharmacy is the study of the physical and chemical properties of drugs and their dosage forms. Classify interfaces with examples. Edited by the leminence grise on this topic and written by the top scientists in the field, this text examines the role of colloid and interface science in pharmacy, as well as pharmaceutical formulations and drug delivery. 11:45 am. Pharmaceutical Suspensions 203. In ionic micelles, the interfacial region between the micelle and the aqueous phase contains the ionic head Sahab Uddin. Complexation and Protein Binding ... PART C MULTIPLE CHOICE QUESTIONS. Must have a linear plot has to be equal to 1 We are controlling the release of the medication primarily by controlling the critical surface tension or the interfacial phenomena. Chapter 6. MARTIN's Physical Pharmacy (.RAR) Note: To download the book from the link, click on the link as usual, wait for the page to load, click Skip Ad, wait for another web page to load, you will now see Google Docs, Click on File tab, finally click download, still another page will load showing: surface and interfacial phenomenon.pdf click here; UNIT-4. Finland . Interface is the boundary between two or more phases exist together The properties of the molecules forming the interface are different from those in the bulk that these molecules are forming an interfacial phase. 3. concepts of intermolecular and interfacial phenomena and ... 1 Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, 575 Stadium Mall Drive, West ... the polymer and drug were heterogeneous on the surface of spray dried ASD particles, which may lead to stability con-cerns (9). Chemistry MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. Every surface is an interface. This represents a 105-fold increase in surface area. Diffusion and Drug Release 249. 3). MCQs in Pharmacy Practiceis an important effort to engage individual pharmacists in such self-assessment. by admin. This chapter employs a first principles approach to unravel the effects of interfaces in solid-state pharmaceuticals. Interfacial phenomena are behaviors that occur at the interface or boundary surface between a suspended particle and the continuous phase material in which it is suspended. Colloids 10. Buffered and isotonic solutions -- 11. Explain concept of … Physical Pharmacy Important Questions Interface and Interfacial phase Read … - Perform skillfully some laboratory processes needed in pharmacy practice as determination of physical properties of solution and suspensions. Is * E-mail: kai_kristiansen@ucsb.edu. Explain Drop Weight and Drop Count Method for determination … Measurement of Surface & Interfacial Tension Important Questions Physical Pharmacy Read More » 1 states of matter. Thus condensation may occur p r /p 0 <1, a phenomena known as capillary condensation. To be able to develop an extraction procedure. On a flat surface surface tension will keep water drops together. Colloids -- 18. Application to Pharmacy 2 2. They do not form systems with different physical properties. The area A occupied by a surfactant molecule at the solution–air interface can be calculated from A = 1/N A 23Γ 2 where N A is the Avogadro number (6.023 × 10 molecules Bayliss gives a good exposition of elementary and fundamental ideas underlying surface phenomena. Give applications of interfacial phenomena in pharmacy. 1UQAC/Aluminerie Alouette Research Chair on Carbon University of Québec at Chicoutimi, . 2.5. problems in which structural dynamics and/or interfacial phenomena are important. Types of Cationic Surface Active Agents 9). Distinct yet not necessarily separate diagnoses that have been implicated in contributing to perturbations in the interfacial phenomena of the ocular surface include aqueous tear deficiency, 32 meibomian gland dysfunction, 33 tear hyperosmolarity, 34 unstable preocular tear film, … hydrocarbon on the interfacial behaviour of these surfactants. To be able to estimate shelf lives and suitable storage conditions for a drug formulation. The feasibility of using a high-entropy rare-earth oxide (REO) as a top coating material for thermal barrier coatings was explored using the atmospheric plasma spray technique. Physical Pharmacy Surface and Interfacial tension. The interface between matter and air, or matter and vacuum, is called a surface, and studied in surface science.In thermal equilibrium, the regions in contact are called phases, and the interface is called a phase boundary. Expectations: porous solids, relative pressure is high, liquid wets the surface. MCQs in Pharmaceutical Science and Technology will ... interfacial phenomena, and rheology. complexes, liquid crystals, glassy state, solids- crystalline, amorphous and polymorphism. Surface-tension phenomena are ubiquitous in organismal biology, although the subject has not yet received a unified treatment. Give equation involved in this method. Determination the solubility of drug at room temperature. Drugs, to have a pharmacological effect must either interact with or pass through a number of interfaces. College of Pharmacy is comprised of one voting faculty member from each of the program tracks, one ... chemical structure and physical phenomena such as solubility, partitioning, and melting. Figure 2.2: a) The free surface between air and water at a molecular scale. The unit in which surface tension is measured is (a) dyne cm (b) dyne cm–1 (c) dyne–1 cm (d) dyne–1 cm–1 equation. Diffusion and dissolution -- 16. This Physical Pharmacy Notes will help all the B.Pharmacy and D.Pharmacy students very much to make a good score in their university and any other competitive exams. Chapter 5. COLLEGE&OF&PHARMACY UNIVERSITY&OF&BASRAH Interfacial Phenomena By Dr. Mohammed Sattar 2017/2018 1 COLLEGE&OF&PHARMACY UNIVERSITY&OF&BASRAH Objectives!Differentiation&btinterfacial&and&surface&tension!Method&of&measurements of&surface&tension!Spreading&coefficient!Surface&adsorption!SAA&and&their&Classification!Wetting&agent 2 Several types of interface can exist depending on whether the two adjacent phases are in solid, liquid or gaseous state. This lab will provide the students with practical training in formulation of oral liquid dosage forms such as simple syrup, effervescent solutions, drought, cough syrup, lugol’s solution, washes, elixirs, and aromatic waters. At the interface, with a new liquid surface area, Ai will result in the diminishing of the solid surface area, Aj. adheres because of surface forces acting between the atoms in the two surfaces. Henrik Ehlers . Chapter 7—Polymeric Surfactants and Surfactant–Polymer Interactions Instructions. 3. Surface-tension phenomena are ubiquitous in organismal biology, although the subject has not yet received a unified treatment. The thermodynamic model based on the surfactant affinity difference (SAD) concept has been developed and successfully employed to microemulsions. (3) Wetting theory: - Predominantly applicable to liquid bioadhesive systems. MCQ on Surface and Interfacial Phenomenon | Part-2 | Physical Pharmaceutics-I | Solve With Anurag Jaiswal Number =
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