Printable Heterostructured Bioelectronic Interfaces with Enhanced Electrode Reaction Kinetics by Intermicroparticle NetworkShow others and affiliations
2017 (English)In: ACS Applied Materials and Interfaces, ISSN 1944-8244, E-ISSN 1944-8252, Vol. 9, no 38, p. 33368-33376Article in journal (Refereed) Published
Abstract [en]
Printable organic bioelectronics provide a fast and cost-effective approach for the fabrication of novel biodevices, while the general challenge is to achieve optimized reaction kinetics at multiphase boundaries between biomolecules and electrodes. Here, we present an entirely new concept based on a modular approach for the construction of heterostructured bioelectronic interfaces by using tailored functional "biological microparticles" combined with "transducer micro particles" as modular building blocks. This approach offers high versatility for the design and fabrication of bioelectrodes with a variety of forms of interparticle spatial organization, from layered structures to more advance bulk heterostructured architectures. The heterostructured biocatalytic electrodes delivered twice the reaction rate and a six-fold increase in the effective diffusion kinetics in response to a catalytic model using glucose as the substrate, together with the advantage of shortened diffusion paths for reactants between multiple interparticle junctions and large active particle surface. The consequent benefits of this improved performance combined with the simple means of mass production are of major significance for the emerging printed electronics industry.
Place, publisher, year, edition, pages
American Chemical Society (ACS), 2017. Vol. 9, no 38, p. 33368-33376
Keywords [en]
microparticles; enzymes; conducting polymers; spatial organization; bioelectronics
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-142434DOI: 10.1021/acsami.7b12559ISI: 000412149800101PubMedID: 28846378Scopus ID: 2-s2.0-85030155040OAI: oai:DiVA.org:liu-142434DiVA, id: diva2:1153664
Note
Funding Agencies|Swedish Research Council [VR-2015-04434]; Graduate School Prince of Songkla University; Higher Education Research Promotion; Office of higher Education Commission; Center of Excellence for Innovation in Chemistry (PERCH-CIC); Ministry of Education, Thailand; National Research University Project of Thailand (NRU)
2017-10-312017-10-312018-03-28Bibliographically approved