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PetriKey

Concept

Biofilm

Surface-attached microbial community

BY-oh-film

biofilmmatrixdevicequorum-sensingresistance

High-yield clue

Surface attachment + matrix + device-associated vocabulary.

Overview

A concept describing microbes embedded in a self-produced matrix on surfaces, often used to teach device-associated infection vocabulary and tolerance concepts.

Classification

  • Microbial community concept
  • Virulence/tolerance vocabulary

Lab & identification clues

  • Matrix vocabulary
  • Quorum-sensing concept
  • Device-associated study cases

Associations

  • Staphylococcus epidermidis
  • Pseudomonas aeruginosa
  • Dental plaque concept

Commonly confused with

  • Capsule
  • Normal flora / microbiota

Frequently asked questions

What is Biofilm?

A concept describing microbes embedded in a self-produced matrix on surfaces, often used to teach device-associated infection vocabulary and tolerance concepts.

What is the high-yield clue for Biofilm?

Surface attachment + matrix + device-associated vocabulary.

What is Biofilm associated with?

Biofilm is associated with Staphylococcus epidermidis, Pseudomonas aeruginosa, and Dental plaque concept.

What is Biofilm commonly confused with?

Biofilm is commonly confused with Capsule and Normal flora / microbiota.

Original microbiology concept summary. Sources checked: OpenStax Microbiology 2e, NCBI Bookshelf Medical Microbiology, and CDC/WHO topic pages where applicable; reviewed 2026-06. Educational only; no diagnosis, treatment selection, infection-control instructions, or specimen-handling guidance.

OpenStax: Microbiology 2e concept foundations - sourceNCBI Bookshelf: Medical Microbiology general concepts - sourceCDC: CDC public-health concept pages - source