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Implantable Organic Electronic Ion Pump Enables ABA Hormone Delivery for Control of Stomata in an Intact Tobacco Plant
Linköping University, Department of Science and Technology, Laboratory of Organic Electronics. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-9845-446X
Swedish Univ Agr Sci, Sweden.
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2019 (English)In: Small, ISSN 1613-6810, E-ISSN 1613-6829, Vol. 15, no 43, article id 1902189Article in journal (Refereed) Published
Abstract [en]

Electronic control of biological processes with bioelectronic devices holds promise for sophisticated regulation of physiology, for gaining fundamental understanding of biological systems, providing new therapeutic solutions, and digitally mediating adaptations of organisms to external factors. The organic electronic ion pump (OEIP) provides a unique means for electronically-controlled, flow-free delivery of ions, and biomolecules at cellular scale. Here, a miniaturized OEIP device based on glass capillary fibers (c-OEIP) is implanted in a biological organism. The capillary form factor at the sub-100 mu m scale of the device enables it to be implanted in soft tissue, while its hyperbranched polyelectrolyte channel and addressing protocol allows efficient delivery of a large aromatic molecule. In the first example of an implantable bioelectronic device in plants, the c-OEIP readily penetrates the leaf of an intact tobacco plant with no significant wound response (evaluated up to 24 h) and effectively delivers the hormone abscisic acid (ABA) into the leaf apoplast. OEIP-mediated delivery of ABA, the phytohormone that regulates plants tolerance to stress, induces closure of stomata, the microscopic pores in leafs epidermis that play a vital role in photosynthesis and transpiration. Efficient and localized ABA delivery reveals previously unreported kinetics of ABA-induced signal propagation.

Place, publisher, year, edition, pages
Wiley-VCH Verlagsgesellschaft, 2019. Vol. 15, no 43, article id 1902189
Keywords [en]
abscisic acid; hormone delivery; implantable devices; organic bioelectronics; plants
National Category
Biochemistry and Molecular Biology
Identifiers
URN: urn:nbn:se:liu:diva-161154DOI: 10.1002/smll.201902189ISI: 000486244900001PubMedID: 31513355Scopus ID: 2-s2.0-85072064878OAI: oai:DiVA.org:liu-161154DiVA, id: diva2:1365773
Note

Funding Agencies|Knut and Alice Wallenberg FoundationKnut & Alice Wallenberg Foundation; Swedish Research Council (VR)Swedish Research Council; Swedish Foundation for Strategic Research (SSF)Swedish Foundation for Strategic Research; Onnesjo Foundation; VINNOVAVinnova; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University [2009-00971]; European UnionEuropean Union (EU) [800926]; Marie Sklodowska Curie Individual Fellowship (MSCA-IFEF-ST, Trans-Plant) [702641]

Available from: 2019-10-25 Created: 2019-10-25 Last updated: 2019-11-01Bibliographically approved

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