Journal
SCIENCE ADVANCES
Volume 6, Issue 40, Pages -Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/sciadv.aba0931
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Funding
- Engineering and Physical Sciences Research Council (EPSRC) [EP/M018989/1]
- European Research Council (ERC-StG) [758865]
- Chinese Scholarship Council
- Whitaker International Scholars Program
- European Commission's Horizon 2020 Marie Sklodowska-Curie Individual Fellowship [797506]
- Cancer Research UK (CRUK)
- EPSRC Cambridge NanoDTC [EP/L015978/1]
- EPSRC [EP/M018989/1] Funding Source: UKRI
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Scalability and device integration have been prevailing issues limiting our ability in harnessing the potential of small-diameter conducting fibers. We report inflight fiber printing (iFP), a one-step process that integrates conducting fiber production and fiber-to-circuit connection. Inorganic (silver) or organic {PEDOT:PSS [poly(3,4-ethylenedioxythiophene) polystyrene sulfonate]} fibers with 1- to 3-mu m diameters are fabricated, with the fiber arrays exhibiting more than 95% transmittance (350 to 750 nm). The high surface area-to-volume ratio, permissiveness, and transparency of the fiber arrays were exploited to construct sensing and optoelectronic architectures. We show the PEDOT:PSS fibers as a cell-interfaced impedimetric sensor, a three-dimensional (3D) moisture flow sensor, and noncontact, wearable/portable respiratory sensors. The capability to design suspended fibers, networks of homo cross-junctions and hetero cross-junctions, and coupling iFP fibers with 3D-printed parts paves the way to additive manufacturing of fiber-based 3D devices with multilatitude functions and superior spatiotemporal resolution, beyond conventional film-based device architectures.
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