S. No Transmission Electron Microscope Scanning Electron Microscope 1. Transmitted electrons produce image Secondary electron produce the image 2. Two dimensional image is formed Three dimensional image is formed 3. Used...
Author - Nandhini Sathish
Introduction and Definition Development of a drug and optimisation of a formulation are very tedious, time taking and expensive process, and during these processes in vitro-in vivo correlations (I VIVC) play an important role...
Acoustics is a branch of science which deals with the planning of building or hall with a view to provide best audible sound to the audience is called acoustics. Acoustics is the science of sound which deals with the properties...
The approach of solid dispersion for particle size reduction and dissolution and absorption rate enhancement of drugs was first introduced in 1961. The term solid dispersion refers to the dispersion of one or more active...
Musical sound is characterised by; (i) Pitch (related with frequency). (ii) Loudness (related with intensity). (iii) Quality (related with timbre). (i) Pitch Pitch is a sensation that depend upon the frequency. It is the...
Protein Binding The reversible binding of drug with non-specific and non-functional site on the body protein without showing any biological effect is called as protein binding. A drug’s efficiency may be affected by the degree...
Hydrogen bonding is a type of dipole-dipole interaction between non-bonding electron pairs of hetero atoms like N, S, O and electron deficient hydrogen atom in polar bonds such as OH,NH,F etc., these are weak bonds (10kcal/mol.)...
In transmission electron microscope (TEM) the image can be obtained by transmitting the electron through the specimen. TEM is capable of providing information at magnification of 50 million times than that of the object size...
The electron microscope was first built by Ernest Rush in 1931. It is the type of microscope in which instead of light beam, a beam of electrons are used to form a large image of a very small object. These microscopes are...
Wave Function The space-time behaviour of each moving quantum mechanical particle can be described by a function. This function is known as wave function. It is generally denoted by ψ. It is also stated as the variable quantity...
