Toward a closed loop, integrated biocompatible biopolymer wound dressing patch for detection and prevention of chronic wound infections

Andrew Ward, Prachi Dubey, Pooja Basnett, Granit Lika, Gwenyth Newman, Damion Corrigan, Christopher Russell, Jongrae Kim, Samit Chakrabarty, Patricia Connolly, Ipsita Roy

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Abstract

Chronic wound infections represent a significant burden to healthcare providers globally. Often, chronic wound healing is impeded by the presence of infection within the wound or wound bed. This can result in an increased healing time, healthcare cost and poor patient outcomes. Thus, there is a need for dressings that help the wound heal, in combination with early detection of wound infections to support prompt treatment. In this study, we demonstrate a novel, biocompatible wound dressing material, based on Polyhydroxyalkanoates, doped with graphene platelets, which can be used as an electrochemical sensing substrate for the detection of a common wound pathogen, Pseudomonas aeruginosa. Through the detection of the redox active secondary metabolite, pyocyanin, we demonstrate that a dressing can be produced that will detect the presence of pyocyanin across clinically relevant concentrations. Furthermore, we show that this sensor can be used to identify the presence of pyocyanin in a culture of P. aeruginosa. Overall, the sensor substrate presented in this paper represents the first step toward a new dressing with the capacity to promote wound healing, detect the presence of infection and release antimicrobial drugs, on demand, to optimized healing.

Original languageEnglish
Article number1039
Number of pages12
JournalFrontiers in Bioengineering and Biotechnology
Volume8
DOIs
Publication statusPublished - 1 Sep 2020

Keywords

  • artificial intelligence
  • electrochemical
  • wound dressing
  • biopolymer
  • pyocyanin
  • pseudomonas aeruginosa
  • graphene
  • polyhydroxyalkanoates

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