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. 2022 Feb 8;20:71. doi: 10.1186/s12951-022-01268-1

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© The Author(s) 2022, corrected publication 2022

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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Fig. 2 — In-vivo implantation and imaging assessment of ePTFE and NanoGraft grafts: a direct representative picture of the ePTFE graft with oozing from suture line and NanoGraft with no oozing. Inset shows the OCT image of the patent grafts. Representative 2D Doppler of the longitudinal and cross-sectional view of b ePTFE and c NanoGrafts (distance A- 3.8 mm, B-0.7 mm), with the corresponding qualitative and quantitative evaluation of blood flow through the grafts (bottom in b and c). d 2D Doppler of the longitudinal and cross-sectional view of the occluded ePTFE grafts (blue arrows depict the regions with adherent clots) and its corresponding optical image. e Quantitative evaluation of blood flow through the patent synthetic grafts before and after implantation