Next Article in Journal
Degradation of Glaukonite Sandstone as a Result of Alkali-Silica Reactions in Cement Mortar
Next Article in Special Issue
3D-Printed PCL/PLA Composite Stents: Towards a New Solution to Cardiovascular Problems
Previous Article in Journal
Seebeck Coefficient of Thermocouples from Nickel-Coated Carbon Fibers: Theory and Experiment
Previous Article in Special Issue
Protein-Based Nanoparticle Preparation via Nanoprecipitation Method
An updated version is available. Download PDF
Open AccessArticle

Effect of Antibacterial Plant Extracts on the Morphology of Electrospun Poly(Lactic Acid) Fibres

Department of Materials, Loughborough University, Loughborough LE11 3TU, UK
*
Author to whom correspondence should be addressed.
Materials 2018, 11(6), 923; https://doi.org/10.3390/ma11060923
Received: 15 May 2018 / Revised: 26 May 2018 / Accepted: 28 May 2018 / Published: 30 May 2018
Essential oils (EOs) of clary sage and black pepper induce changes in the morphology of poly(lactic acid) (PLA) electrospun fibres. The chemical composition of the oils is analysed by gas chromatography-mass spectrometry and Fourier-transform infrared spectroscopy; while the evaporation rate of the EOs and their main chemical components is characterised by Thermogravimetric Analysis. The addition of EOs generate thermodynamic instabilities during the electrospinning process, leading to the formation of fibres with either wrinkled (for clary sage oil) or nano-textured surfaces (for black pepper oil). The morphology of the PLA-EOs fibres is investigated by Scanning Electron Microscopy. Together with a well-defined structure, the fibres produced also possess antibacterial activity, as demonstrated by viability loss tests conducted on E. coli and S. epidermidis. Bacteria inactivation efficiency of 76 and 100% is reported for the composite PLA/essential oils electrospun mats. The composite mats produced are promising in the biomedical field, where nanotopography offers physical cues to regulate cell behaviour, and the delivery of therapeutic compounds (essential oils) limits microbial growth. View Full-Text
Keywords: electrospinning; phase separation; plant extracts; poly(lactic acid) electrospinning; phase separation; plant extracts; poly(lactic acid)
Show Figures

Figure 1

MDPI and ACS Style

Wang, P.; Mele, E. Effect of Antibacterial Plant Extracts on the Morphology of Electrospun Poly(Lactic Acid) Fibres. Materials 2018, 11, 923.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map

1
Back to TopTop