Electronic Textiles Research Develops Colour Changing and Antibacterial Fabrics
February 12, 2019 | University of SouthamptonEstimated reading time: 1 minute
Multi-disciplinary research at the University of Southampton is creating smart fabrics capable of emitting light, changing colour and controlling infections.
Researchers in the Smart Electronics and Materials (SEMS) group in Electronics and Computer Science (ECS) and the Synthesis, Catalysis and Flow group in Chemistry are investigating a new technique for achieving light emitting textiles which could be used in future medical, performance sports, automotive, architecture and fashion materials.
The new project, funded by the Engineering and Physical Sciences Research Council, is formulating light emitting films on the surface of standard textiles through electronically functional inks and spray coating, along with cutting-edge inkjet and dispenser printing processes.
Professor Steve Beeby, Head of SEMS and Principal Investigator, says: “Textiles are demanding substrates for device printing due to their rough surface topology, porosity and the necessary low processing temperatures. The achievement of suitable functional materials along with reliable, consistent fabrication processes will enable a huge range of new textile products.”
The research is investigating the fabrication of textile organic light emitting electrochemical cells (OLECs) that can selectively operate at visible and UV wavelengths, representing a step change in e-textile capability. OLECs are electrochemically stable in air, require a low turn on voltage and have demonstrated a high luminance level, allowing them to be clearly visible in everyday lighting.
The use of UV-OLEC technology will enable photochromic colour-changing textiles capable of fast colour change, low operation voltage and power consumption, with a more diverse choice of colours and a clearer, more pronounced, change in appearance. UV-OLECs will also support textiles to perform ultraviolet germicidal irradiation (UVGI), which is a disinfection method that uses short wavelength UVC light. Textile based UVGI can be incorporated into medical applications such as smart bandages to treat or prevent infection and reduce reliance on antibiotics.
Co-Investigators Dr John Tudor and Professor David Harrowven are drawing upon their groups’ complementary expertise in e-textiles, printed devices and processing, the chemical synthesis of complex molecules, and materials formulation.
The SEMS group at Southampton has coordinated two EU projects worth a combined €12m over the last nine years, integrating electronic and sensing functionality in e-textiles. The Synthesis, Catalysis and Flow group has been a primary UK partner on two EU projects worth a combined €11m over the past decade and currently leads the 2017 European Regional Development Fund (ERDF) LabFact Grant.
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