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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...

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Related Experiment Video

Updated: May 12, 2026

Combination of Microstereolithography and Electrospinning to Produce Membranes Equipped with Niches for Corneal Regeneration
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Tackling Microbial Contamination in Polydioxanone-Based Membranes for Regenerative Therapy: Bioengineering an

Victoria L Abdo1, Jamil A Shibli1,2, Raphael C Costa3

  • 1Dental Research Division, Universidade Universus Veritas Guarulhos, Guarulhos 07023-070, Brazil.

ACS Applied Bio Materials
|April 30, 2025
PubMed
Summary

New polydioxanone (PDO) membranes loaded with amoxicillin (AMX-PDO) show promise in preventing microbial contamination during tissue regeneration. These biologically active barriers reduce oral pathogens, offering an advancement over traditional collagen membranes.

Keywords:
amoxicillinantimicrobial propertiesbacteriabiofilmsguided bone regenerationmembranes

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Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Infectious Disease Prevention

Background:

  • Barrier membranes are crucial for tissue regeneration, but collagen membranes can cause adverse reactions.
  • Synthetic polydioxanone (PDO) membranes offer tunable properties but are susceptible to microbial contamination.
  • Antibiotic loading on barrier membranes is underexplored, especially for PDO.

Purpose of the Study:

  • To evaluate oral polymicrobial contamination on PDO and collagen membranes.
  • To develop amoxicillin-loaded PDO (AMX-PDO) membranes using plasma technology.
  • To assess the efficacy of AMX-PDO membranes as biologically active barriers.

Main Methods:

  • In vitro and in situ models were used to assess polymicrobial accumulation on PDO and collagen membranes.
  • Amoxicillin was loaded onto PDO membranes using glow discharge plasma with Ar and O2 gases.
  • Physical and chemical properties of AMX-PDO membranes were analyzed.

Main Results:

  • PDO membranes modulated microbial composition, reducing specific oral pathogens compared to collagen membranes.
  • AMX-PDO membranes maintained structural integrity while significantly reducing polymicrobial accumulation.
  • AMX-PDO membranes effectively prevented microbial passage, acting as active barriers.

Conclusions:

  • Amoxicillin loading onto PDO barrier membranes via plasma technology is a viable strategy.
  • AMX-PDO membranes offer enhanced protection against microbial contamination in regenerative therapies.
  • This approach presents a promising method to prevent local infections during tissue regeneration.