What is complexation in pharmaceutics?
INTRODUCTION: ➢ Complexation is the process of complex formation that is the process of characterization the covalent or non-covalent interactions between two or more compounds. Drug molecules can form complexes with other small molecules or with macromolecules such as proteins.
What is complexation and its types?
Complexes can be divided broadly into three classes depending the type of the acceptor substance: 1. Metal ion complexes 2. Organic molecular complexes 3. Inclusion complexes Intermolecular forces involved in the formation of complexes: 1.
What is complexation and give its application?
Complexation is the association between two or more molecules to form a non bonded entity with a well-defined stoichiometry. In broad terms, complexation is used to characterize covalent or non-covalent interactions between two or more compounds that are capable of independent existence.
How does complexation affect drug action?
Drug molecules can form complexes with other small molecules or with macromolecules such as proteins. Once complexation occurs, the physical and chemical properties of the complexing species are altered.
Why is complexation important?
Complexation is an important process that will determine in some cases if mineral solubility limits are reached, the amount of adsorption that occurs, and the redox state that exists in the water. Chemicals can also form stable, soluble complexes with ligands.
How does complexation happen?
A complexation reaction can be described as a reaction that forms a “complex”. A reaction between two compounds may proceed normally until it is “flooded” by one of the reagents, at which point a complex ion is more likely to form. The formation of a complex is generally indicated by a color change.
What is complexation process?
Complexation is the process of formation of a coordination complex from a coordinating atom or ion and a set of ligands. Complexation is used to produce a variety of organometallic coordination compounds that are used as catalysts in organic chemistry and as pharmaceutical agents.
Why are complexation important?
Why is complexation important in pharmacy?
Complexation is an extensively used technique in the pharmaceutical field to improve solubility of several pharmaceutical ingredients, and subsequently the bioavailability of poorly water-soluble drugs.
What is difference between complexation and chelation?
The key difference between complexing agent and chelating agent is that complexing agent is an ion, molecule or a functional group that can bind with a metal ion through one or several atoms to form a large complex whereas chelating agent is a compound that can bind with a metal ion to produce a chelate through several …
How do you identify cationic and anionic complex?
1. Cationic complexes: A complex in which the complex ion carries a net positive charge is called a cationic complex. 2. Anionic complexes: The complexes in which the complex ion carries a net negative charge are called anionic complexes.
What is complexation in analytical chemistry?
Complexation is the process of formation of a coordination complex from a coordinating atom or ion and a set of ligands. Analytical chemistry utilizes the formation of colored coordination compounds to perform quantitative analysis. This process is also applied in medicine to remove heavy metal ions from an organism.
