Detection Of Biological Molecules

Outline of biomolecule detection: Without carbon, nitrogen, hydrogen, sulfur, oxygen, phosphorus, there is no life. These are the richest elements of living creatures. These elements are bonded to each other by covalent bonds, ionic bonds, hydrogen bonds and disulfide bonds. Covalent bonds are particularly strong and are therefore present in monomers and are the cornerstone of life. These monomers combine to form a polymer, which is a long chain monomer connected in series. Biomolecules can be distinguished by their functional groups.

Box 1.6: Biomarker A biomarker or "biomarker" is a molecule or a collection of different molecules that indicate the presence of a disease when detected at a particular level in body fluids or tissues. Biomarkers developed in dementia include examining the level of beta amyloid or tau in human CSF and using radioligands (molecules that bind proteins, in this case beta amyloid). ) Β-amyloid is prepared. Amyloid protein is seen in brain scan. 1.34 Clinical diagnosis is based on the history and type of cognitive dysfunction, as well as the influence of it on the daily lives of people, together with the certain history of suspected dementia. Cognitive impairment is confirmed by the verification procedure. The most famous is the "Minimum Mental State Test" (MMSE) (see paragraph 1.12). MMSE then usually performs more detailed tests

Quantitative or qualitative procedures for detecting the presence, estimating concentration, and / or determining biological activity * of macromolecules (eg, antibodies or antigens, molecules, ions, cells, pathogens, etc.). Analysis is based on measurable parameters, so you can distinguish between samples and controls. Biological analysis (not to be confused with animal experiments on drug efficacy and safety) is historical because it is cumbersome and difficult to quantify and it rarely provides information that can not be obtained with other test formats.

A protein is a biomolecule that acts as a cellular mechanism of an organism. These macromolecules are specific three-dimensional structures involved in biological processes such as cell signaling, catalytic chemical reactions, molecular transport, and many other functions. Proteins are polymers composed of long chain monomers and amino acids. Of the more than 500 known amino acids, proteins in living organisms contain only 20 proteins. Amino acids are relatively simple organic molecules (Figure 11). The central carbon attached via a single covalent bond is also known as 1) a hydrogen atom, 2) an amine group (NH 3 +), 3) a carboxylic acid (COO -) group, and 4) a side chain R - group.