About This Chapter
Chemical Methods of Microbial Control - Chapter Summary
The lessons in this chapter outline a variety of chemical methods that are used to control microbes. As you progress through this series of engaging lessons and mini quizzes, you'll become familiar with the uses of alcohol, phenol disinfectants, peroxide antiseptics, formaldehyde, detergents and much more. Take the chapter exam to strengthen your knowledge and see how you might do on an exam. You can review these lessons online at any time, and the video lessons come with printable transcripts. If you have any questions, feel free to submit them to our expert science instructors. Completing this chapter can help you:
- Explain how alcohol is used as an antiseptic and disinfectant
- Assess the pros and cons of phenol disinfectants, chlorine and quaternary ammonium compounds
- Compare different types of peroxide antiseptics
- Evaluate formaldehyde structures
- Recognize safe ethylene oxide use
- Discuss the uses and modes of action for iodine, silver and chlorhexidine
- Understand how detergents are used for microbial control
1. Using Alcohol as a Disinfectant and Antiseptic
This lesson will discuss how alcohol can be used as a disinfectant and antiseptic but not a sterilant. We'll also talk about what it kills and doesn't kill and why ethyl alcohol and isopropyl alcohol are the two most commonly used alcohol-based disinfectants.
2. What Are Phenol Disinfectants? - Definition, Advantages & Disadvantages
We will explore a disinfectant known as phenol. We'll cover what its mechanism of action is, what it can and cannot kill, its advantages and disadvantages and its involvement in enzyme systems.
3. Chlorine and Quaternary Ammonium Compounds: Advantages and Disadvantages
This lesson covers the very common and well-known disinfectants chlorine and quaternary ammonium. We will talk about their advantages, disadvantages, and uses in addition to the types of microbes they can kill.
4. What Are Peroxide Antiseptics? - Definition, Types & Uses
We will discuss chemical substances known as peroxides. You'll learn about hydrogen peroxide and peracetic acid as well as the way by which they kill microbes and whether or not they are used as a sterilant, disinfectant, or antiseptic.
5. What is Formaldehyde? - Definition, Uses & Structures
Do you remember that liquid in a jar that you used in biology class to preserve the frog you dissected? That liquid contains a substance known as formaldehyde. In this lesson, we will learn more about formaldehyde, its structure and its other uses.
6. What Is Ethylene Oxide? - Uses, Safety & Technology
This lesson will discuss how a type of gas, called ethylene oxide, can sterilize equipment. We'll talk about the way by which it does this, what its advantages are, as well as the dangers it poses to human health if used improperly.
7. Chlorhexidine, Iodine & Silver: Uses and Modes of Action
This lesson will discuss four commonly heard of chemical antiseptics: namely, iodine and iodophors, silver nitrate, silver sulfadiazine, and chlorhexidine, and it will cover the ways by which they kill microbes.
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Other chapters within the UExcel Microbiology: Study Guide & Test Prep course
- Early History of Microbiology
- Fundamentals of Microbiology
- Microbiology Laboratory Procedures
- Understanding Genetics & DNA
- Understanding Metabolism
- Bacterial Biology
- Understanding Diseases
- Protozoan Diseases
- Understanding Viruses
- Overview of DNA Viruses
- Overview of RNA Viruses
- Overview of Fungal Infections
- Illnesses & Infections of the GI Tract
- Overview of Bacterial STDs
- Understanding Blood-Borne Bacterial Diseases
- Respiratory Bacterial Infections
- Bacterial Skin and Wound Infections
- Immunology Basics
- Structure & Function of the Immune System
- Overview of Antigens
- Disorders of the Immune System
- Serological & Diagnostic Reactions
- Antimicrobial Drugs Overview
- Sterilization & Antiseptic Methods
- Effectiveness of Antiseptics & Disinfectants
- Microbiology & the Environment
- Food & Industrial Microbiology Overview
- UExcel Microbiology Flashcards