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Related Concept Videos

Protein Complex Assembly02:41

Protein Complex Assembly

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Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types.  Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
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Groups of proteins may form a complex where each protein in this complex has a different role in the overall execution of the complex’s function. Often some of the proteins in the complex can be replaced by a closely related variant to give a complex that contains many of the same components yet is functionally distinct.
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Complex Numbers01:29

Complex Numbers

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The real number system cannot represent the square root of a negative number, which restricts solutions for certain equations, such as quadratics with negative discriminants. To address this, the complex number system was developed, introducing the imaginary unit i, where i = √(-1). This extension allows for the representation of all roots, including those involving negative radicands.A complex number is written in the form x + yi, where x and y are real numbers. Here, x represents the...
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Formation of Complex Ions03:45

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A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
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Following injury, the integrity of the injured tissues must be reestablished. For example, in skin tissue, wound repair involves coordination among resident skin cells, blood mononuclear cells, extracellular matrix, growth factors, and cytokines to complete the healing cascade.
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Power engineers have introduced the concept of complex power to determine the cumulative effect of parallel loads. This idea plays a crucial role in power analysis because it encompasses all the details related to the power consumed by a specific load.
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Related Experiment Video

Updated: Jan 30, 2026

Author Spotlight: Studying Host-Microbe Interactions in Wound Biofilm Formation
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Author Spotlight: Studying Host-Microbe Interactions in Wound Biofilm Formation

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The microbiome and its relevance in complex wounds.

Francesco Drago1, Lodovica Gariazzo1, Margherita Cioni1

  • 1University of Genoa, Dissal, Department of Dermatology, San Martino Policlinic Hospital, Genoa, Italy.

European Journal of Dermatology : EJD
|January 24, 2019
PubMed
Summary

Chronic wounds often harbor bacterial biofilms, a major impediment to healing. Effective treatment involves wound bed preparation and debridement to remove these biofilms.

Keywords:
biofilmchronic woundrisk factorsurgical or conservative sharp wound debridementwound bed preparation

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Oral Biofilm Sampling for Microbiome Analysis in Healthy Children
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Area of Science:

  • Microbiology
  • Dermatology
  • Wound Care

Background:

  • Chronic wounds, failing to heal within three months, represent a significant clinical challenge.
  • Bacterial biofilms are implicated in 60% of chronic wounds, complicating treatment and delaying healing.
  • Staphylococcus aureus and Pseudomonas aeruginosa are common biofilm-forming bacteria in chronic wounds.

Purpose of the Study:

  • To investigate the role of biofilms in chronic wound pathogenesis.
  • To highlight diagnostic challenges and effective treatment strategies for biofilm-infected chronic wounds.
  • To present case studies of complex chronic wound management.

Main Methods:

  • Review of literature on chronic wound etiology and biofilm formation.
  • Discussion of diagnostic indicators for biofilms, emphasizing tissue biopsy over swabs.
  • Emphasis on wound bed preparation and debridement techniques (surgical and conservative sharp) for biofilm removal.

Main Results:

  • Biofilms are a critical factor in the chronicity of wounds.
  • Early identification and management of biofilms are essential for successful wound healing.
  • Debridement is a key intervention for reducing biofilm load.

Conclusions:

  • Biofilm presence significantly impacts wound healing.
  • Wound bed preparation and debridement are crucial for managing chronic wounds with biofilms.
  • Further research into standardized biofilm diagnostics and targeted therapies is warranted.