Let us make an in-depth study of the methods and basic principles of sterilisation and disinfection. Sterilisation can be effected by the following methods: I. Physical Methods and II. Chemical Methods. Sterilisation and Disinfection: These two terms are used to describe the killing or removal of micro-organisms. The sterilisation is an absolute term which denotes the complete killing or removal [...]
The below mentioned article provides a study-note on the chemical agents of disinfection. Chemical sterilising agents are widely used as disinfectants and antiseptics. Disinfectants are: (a) Chemical agents which are capable of destroying pathogenic microorganisms, but not resistant spores; (b) Potent and toxic; (c) Suitable only for application to inanimate objects. Antiseptics are: (a) Chemical agents which kill microorganisms or [...]
Let us make an in-depth study of the uses and preparations of disinfectant or antiseptic lotions. Phenol Group Antiseptics: Lysol (liquor cresolis saponatus) and cresol (black and white fluid) are general powerful disinfectants. Lysol, in 3 per cent solution, is generally used for sterilising discarded cultures; Sudol is less toxic substitute for Lysol. Phenol (0.5 per cent solution) is effective [...]