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Related Concept Videos

Biofilms01:29

Biofilms

Biofilms are complex communities of microorganisms encased in a self-produced extracellular polysaccharide matrix attached to surfaces. These microbial consortia can include single or multiple species, providing enhanced survival benefits by forming organized, multilayered structures.The formation of biofilms occurs through four key stages: attachment, colonization, development, and dispersal.During attachment, free-swimming planktonic cells adhere to a surface, often facilitated by...
Inhibitors of Gram-positive Cell Wall Synthesis01:23

Inhibitors of Gram-positive Cell Wall Synthesis

Bacterial cell walls are typically rigid structures composed mainly of peptidoglycan, a mesh-like polymer that provides mechanical strength and maintains cell shape. The synthesis of peptidoglycan is a crucial process in bacterial growth and serves as a primary target for many antibiotics.Mechanism of Action of Beta-Lactam AntibioticsBeta-lactam antibiotics, such as penicillin, inhibit peptidoglycan synthesis in actively growing cells. These antibiotics share a characteristic four-membered...
Surface Appendages of Archaea01:23

Surface Appendages of Archaea

Archaeal surface appendages are highly specialized structures essential for environmental adaptation, encompassing roles in adhesion, biofilm formation, and motility. Among these appendages, pili and archaella stand out for their distinct morphologies and functionalities, enabling archaea to thrive in diverse and often extreme environments.Pili: Adhesion and Biofilm FormationPili are filamentous structures assembled from pilin protein subunits, primarily contributing to adhesion and biofilm...
Bioplastics01:27

Bioplastics

Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...
Bioavailability Enhancement: Drug Stability Enhancement and GI Retention01:05

Bioavailability Enhancement: Drug Stability Enhancement and GI Retention

Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
Bacterial Cell Wall01:22

Bacterial Cell Wall

The bacterial cell wall is an essential structural component that encases the plasma membrane, preserving cellular integrity, determining shape, and protecting against osmotic stress. This rigid yet flexible structure primarily comprises peptidoglycan, a polymer that forms a mesh-like matrix conferring mechanical strength and flexibility.Peptidoglycan Composition and StructurePeptidoglycan, the core of the bacterial cell wall, comprises alternating units of N-acetylglucosamine (NAG) and...

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Related Experiment Video

Updated: May 21, 2026

Bile Salt-induced Biofilm Formation in Enteric Pathogens: Techniques for Identification and Quantification
10:05

Bile Salt-induced Biofilm Formation in Enteric Pathogens: Techniques for Identification and Quantification

Published on: May 6, 2018

Antibiofilm polysaccharides.

Olaya Rendueles1, Jeffrey B Kaplan, Jean-Marc Ghigo

  • 1Institut Pasteur, Unité de Génétique des Biofilms, Département de Microbiologie, 25-28 rue du Dr Roux, F-75015 Paris, France.

Environmental Microbiology
|June 27, 2012
PubMed
Summary
This summary is machine-generated.

Certain bacterial polysaccharides can surprisingly inhibit biofilm formation. This review explores these antibiofilm molecules, their mechanisms, and potential applications in medicine and industry.

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Related Experiment Videos

Last Updated: May 21, 2026

Bile Salt-induced Biofilm Formation in Enteric Pathogens: Techniques for Identification and Quantification
10:05

Bile Salt-induced Biofilm Formation in Enteric Pathogens: Techniques for Identification and Quantification

Published on: May 6, 2018

A Platform of Anti-biofilm Assays Suited to the Exploration of Natural Compound Libraries
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A Platform of Anti-biofilm Assays Suited to the Exploration of Natural Compound Libraries

Published on: December 27, 2016

High-throughput Identification of Bacteria Repellent Polymers for Medical Devices
10:43

High-throughput Identification of Bacteria Repellent Polymers for Medical Devices

Published on: November 5, 2016

Area of Science:

  • Microbiology
  • Biochemistry

Background:

  • Bacterial extracellular polysaccharides are crucial for biofilm formation, mediating cell-to-cell and cell-to-surface interactions.
  • Biofilms are essential for bacterial survival, offering protection and facilitating colonization.
  • These biofilms contribute to various infections and industrial challenges.

Purpose of the Study:

  • To review the composition and mechanisms of recently identified antibiofilm polysaccharides.
  • To discuss the biological roles and potential applications of these inhibitory molecules.
  • To explore the use of antibiofilm polysaccharides in industrial and medical settings.

Main Methods:

  • Literature review of recent studies on antibiofilm polysaccharides.
  • Analysis of the chemical composition and structural characteristics of these molecules.
  • Examination of in vitro and in vivo data on their inhibitory effects.

Main Results:

  • Several bacterial and eukaryotic polysaccharides have been identified that inhibit biofilm formation.
  • These molecules act through diverse mechanisms to prevent biofilm development.
  • Antibiofilm polysaccharides show broad-spectrum activity against various bacteria and fungi.

Conclusions:

  • Antibiofilm polysaccharides represent a novel class of molecules with significant potential.
  • Understanding their composition and action is key to developing new strategies against biofilms.
  • These compounds may offer innovative solutions for industrial and medical antibiofilm applications.