期刊
ADVANCED MATERIALS
卷 33, 期 39, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.202102302
关键词
bioresorbable materials; dynamic pressure sensors; implantable devices; postoperative care; triboelectrics
类别
资金
- National Natural Science Foundation of China [61875015, 62004010, U20A20390, 11827803]
- National Postdoctoral Program for Innovative Talent [BX20190026]
- China Postdoctoral Science Foundation [2019M660410]
- Beijing Natural Science Foundation [JQ20038]
- Fundamental Research Funds for the Central Universities
Bioresorbable electronics, such as the bioresorbable triboelectric sensor (BTS) described in the study, offer a promising solution to avoid secondary invasive surgery. The BTS demonstrated high sensitivity and durability in identifying abnormal vascular occlusion events in large animals, showcasing the potential of triboelectric devices in postoperative care as bioresorbable electronics.
Bioresorbable electronics that can be absorbed and become part of the organism after their service life are a new trend to avoid secondary invasive surgery. However, the material limitation is a significant challenge. There are fewer biodegradable materials with pressure-sensitive properties. Here, a pressure sensor based on the triboelectric effect between bioabsorbable materials is reported. This effect is available in almost all materials. The bioresorbable triboelectric sensor (BTS) can directly convert ambient pressure changes into electrical signals. This device successfully identifies abnormal vascular occlusion events in large animals (dogs). The service life of the BTS reaches 5 days with a high service efficiency (5.95%). The BTS offers excellent sensitivity (11 mV mmHg(-1)), linearity (R-2 = 0.993), and good durability (450 000 cycles). The antibacterial bioresorbable materials (poly(lactic acid)-(chitosan 4%)) for the BTS can achieve 99% sterilization. Triboelectric devices are expected to be applied in postoperative care as bioresorbable electronics.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据