Chemistry in Everyday Life
A drug is a biologically active chemical used for diagnosis, prevention or treatment; its classification depends on the question being asked.
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Drugs: Meaning and Classification
A drug is a biologically active chemical used for diagnosis, prevention or treatment; its classification depends on the question being asked.
Open article →Drug Targets: Enzymes and Receptors
Drugs can change a biological response by altering enzyme action or binding to receptors.
Open article →Pain, Fever, Anaesthesia and Antacids
Analgesics, antipyretics, anaesthetics and antacids serve different chemical and physiological purposes.
Open article →Antimicrobials, Antiseptics and Disinfectants
Antimicrobials act on microorganisms, while antiseptic and disinfectant labels depend on where a chemical is applied.
Open article →Food Additives and Preservation
Food additives serve defined functions such as preservation, colour, flavour, stability, sweetness or oxidation control.
Open article →Soap, Saponification and Micelles
Soap is a sodium or potassium salt of a higher fatty acid whose two-ended structure forms grease-carrying micelles in water.
Open article →Detergents and Hard Water
Detergents are surfactants whose ionic or nonionic heads can retain cleansing action where soap forms insoluble salts.
Open article →Dyes, Colourants and Fastness
A dye is not merely coloured; it must attach to a material and retain useful colour under expected conditions.
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