Utskrift från Malmö universitets webbplats www.mah.se

Flexible and transparent charge-storing biofuel cells (self-powered biosensors) for electronic contact lenses

Contact person: Sergey Shleev
Responsible: Sergey Shleev
Co-workers: Dmitry Pankratov
Partner: Samsung Electronics Co., Ltd.
Funding: Samsung Electronics Co., Ltd. and Malmö University
Timeframe: 2014-10-01 -- 2015-09-01
Research profile: Biologiska gränsytor
Forskningscentrum: Biofilms - Research Center for Biointerfaces
Faculty/Department: Faculty of Health and Society, The Department of Biomedical Science
Subject: Naturvetenskap
Webpage: http://www.mah.se/www.mah.se/shleev/samsung

Continuous growth of challenges of health care sector asks for alternative healthcare operations/services. Attachable, adhesible, floating, self-contained biomedical devices operating ex vivo, e.g. bionic contact lenses, are very promising devices for modern healthcare system. Their wireless connection to powerful smartphones will result in novel mobile platform that allows smarter device design for different applications including continuous non-invasive personal health monitoring. Thus, the main technological goal of the project is to design and test flexible and transparent charge-storing enzymatic fuel cells operating in human tears, which can also serve as self-powered glucose/oxygen sensitive biosensors. The main scientific goal of the project is to appreciate the fundamental principles and theoretical limits of the performance of unique dual feature (double function) bioelectrodes, viz. biodevices simultaneously possessing bioelectrocatalytic and charge storage properties. The interdisciplinary project, which combines state-of-the-art nanomaterials, recent discoveries and recent interpretations of various phenomena for constructing truly innovative three-dimensional biodevices with possible future applications in smart electronic (bionic) contact lenses, will entail the fabrication and characterization of redox active conductive nanobiocomposites, flexible, transparent, and biocompatible bioelectrodes, as well as manufacturing and investigation of authentic charge-storing/sensing biodevices. Fabrication and characterization of entirely new type of bioelectronic devices, viz. membrane-free and mediator-less, flexible and transparent charge-storing biofuel cells, by assembling carbohydrate oxidizing and oxygen reducing nanobiocomposite based electrodes, will be done after detailed studies and optimization of the individual bioelectrodes. In vitro tests in both artificial (buffers mimicking human lachrymal liquid) and natural human tears will be performed as a proof-of principle demonstration of highly effective, green and disposable electric power sources, which can be also used as self-powered glucose/oxygen sensitive biosensors for smart contact lens applications.

Senast uppdaterad av Magnus Jando