Cytocompatibility testing of cyclodextrin-functionalized antimicrobial textiles-a comprehensive approach

J Mater Sci Mater Med. 2016 Dec;27(12):190. doi: 10.1007/s10856-016-5804-4. Epub 2016 Nov 14.

Abstract

Functionalized textiles can be used in wound management to reduce the microbial burden in the wound area, to prevent wound infections, and to avoid cross-contamination between patients. In the present study, a comprehensive in vitro approach to enable the assessment of antibacterial activity of functionalized textiles and cytotoxicity of cyclodextrin (CD)-complexes with chlorhexidine diacetate (CHX), iodine (IOD), and polihexanide (PHMB) is suggested to evaluate their properties for supporting optimal conditions for wound healing. For all β-CD-antiseptic functionalized cotton samples a strong antibacterial effect on the Gram-positive bacteria Staphylococcus aureus and Staphylococcus epidermidis as well as on the Gram-negative bacteria Klebsiella pneumoniae and Escherichia coli was proven. In addition, β-CD-CHX and β-CD-PHMB were effective against the yeast Candida albicans. The growth of Pseudomonas aeruginosa could be reduced significantly by β-CD-IOD and β-CD-PHMB. The established comprehensive testing system for determination of biocompatibility on human HaCaT keratinocytes is suitable for obtaining robust data on cell viability, cytotoxicity and mode of cell death of the β-CD-antiseptic-complexes. The promising results of the high antimicrobial activity of these functionalized textiles show the high potential of such materials in medical applications.

MeSH terms

  • Anti-Infective Agents / chemistry*
  • Anti-Infective Agents, Local
  • Apoptosis
  • Bacterial Infections / drug therapy*
  • Biguanides
  • Biocompatible Materials*
  • Candida albicans / drug effects
  • Caspase 3 / metabolism
  • Cell Line
  • Cell Survival
  • Cyclodextrins / chemistry*
  • Escherichia coli / drug effects
  • Flow Cytometry
  • Humans
  • Keratinocytes / drug effects
  • Keratinocytes / microbiology
  • Klebsiella pneumoniae / drug effects
  • Materials Testing
  • Microbial Sensitivity Tests
  • Pseudomonas aeruginosa / drug effects
  • Staphylococcal Infections / drug therapy
  • Staphylococcus aureus / drug effects
  • Staphylococcus epidermidis / drug effects
  • Textiles*

Substances

  • Anti-Infective Agents
  • Anti-Infective Agents, Local
  • Biguanides
  • Biocompatible Materials
  • Cyclodextrins
  • polihexanide
  • CASP3 protein, human
  • Caspase 3