Zhirong Liu

2 months ago | nature.com | Zhirong Liu |Chuyu Tang |Nannan Han |Zhuoheng Jiang |Shaobo Wang |Quanhong Hu | +7 more

Patients suffering from coronary artery disease (CAD) or peripheral arterial disease (PAD) can benefit from bypass graft surgery. For this surgery, arterial vascular grafts have become promising alternatives when autologous grafts are inaccessible but suffer from numerous postimplantation challenges, particularly delayed endothelialization, intimal hyperplasia, high risk of thrombogenicity and restenosis, and difficulty in timely detection of these subtle pathological changes. We present an electronic vascular conduit that integrates flexible electronics into bionic vascular grafts for in situ, real-time and long-term monitoring for hemadostenosis and thrombosis concurrent with postoperative vascular repair. Following bypass surgery, the integrated bioelectronic sensor based on the triboelectric effect enables monitoring of the blood flow in the vascular graft and identification of lesions in real time for up to three months. In male nonhuman primate cynomolgus monkeys, the electronic vascular conduit, with an integrated wireless signal transmission module, enables wireless and real-time hemodynamic monitoring and timely identification of thrombi. This electronic vascular conduit demonstrates potential as a treatment-monitoring platform, providing a sensitive and intuitive monitoring technique during the critical period after bypass surgery in patients with CAD and PAD. Arterial vascular grafts are promising for vascular reconstruction but face risk of restenosis. Here, the authors report an electronic vascular conduit for in situ, long-term monitoring of thrombosis concurrent with postoperative vascular repair in in small animals and nonhuman primates.

Feb 20, 2024 | alzres.biomedcentral.com | Hui Hong |Luwei Hong |Xiao Luo |Qingze Zeng |Kaicheng Li |Shuyue Wang | +9 more

All procedures performed in studies involving human participants were under the ethical standards of the Institutional and National Research Committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Written informed consent was from all participants and authorized representatives, and the study partners before any protocol-specific procedures were carried out in the ADNI study. More details can be found from http://www.adni-info.org.

Dec 18, 2023 | mdpi.com | Zhirong Liu

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