Silver

Definition

Silver is a metal known for its antimicrobial properties, often used in medical and microbiological applications to control microbial growth. It can be incorporated into various products to inhibit the growth of bacteria, fungi, and viruses.

5 Must Know Facts For Your Next Test

1. Silver ions can disrupt bacterial cell membranes and interfere with their metabolic processes.
2. Silver nanoparticles are commonly used in wound dressings, coatings for medical devices, and water purification systems.
3. Bacteria do not easily develop resistance to silver compared to antibiotics.
4. The effectiveness of silver as an antimicrobial agent depends on its concentration and form (ions or nanoparticles).
5. Silver's antimicrobial action is broad-spectrum, affecting a wide range of microorganisms including Gram-positive and Gram-negative bacteria.

Review Questions

• How do silver ions disrupt bacterial cells?
• In what medical products are silver nanoparticles commonly used?
• Why is it difficult for bacteria to develop resistance to silver?

Related terms

Antibiotic: A substance that inhibits the growth of or destroys microorganisms.

Nanoparticles: Ultrafine particles between 1-100 nanometers in size used in various fields including medicine.

Antimicrobial Resistance: The ability of microorganisms to withstand the effects of an antimicrobial agent.