A Bioresorbable Dynamic Pressure Sensor for Cardiovascular Postoperative Care

Abstract

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 (R2 = 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.

Assessment of Occlusal Force and Local Gas Release Using Degradable Bacterial Cellulose/Ti3C2Tx MXene Bioaerogel for Oral Healthcare

“…The prevalent use of transient electronics has resulted in a large amount of pollution caused by electronic waste. − Therefore, the device proposed in this study was intentionally designed to degrade easily. To investigate the degradability of BC/MXene bioaerogels, a common industrial oxidant, H 2 O 2 , was used.…”

Sensitivity of Piezoresistive Pressure Sensors to Acceleration

“…However, in medical areas, some sophisticated and interesting pressure transducer applications can be found. In article [5], the authors discussed the issues related to the use of pressure sensors as electronic bioresorbable implants. It is a new trend of electronics in medicine and invasive surgery.…”

All‐day wearable health monitoring system

“…With the increased popularity of wearable devices that can be mounted to the human body, the provision of personal safety and convenience through continuous health monitoring is emerging as an essential field 1–6 . Because these devices can diagnose and prevent diseases, they can be widely used in the medical field, and research is ongoing to further develop them for health management, monitoring, and direct treatment applications 7–11 . Current studies are focused on developing multimodal wearable devices to enable round‐the‐clock vital sign monitoring, which can be easily integrated with wristwatches, 12 bands, 13 clothing, 14,15 tattoo‐like sensory skin patches (electronic‐skin), 16–18 and contact lenses 19 …”

“…[1][2][3][4][5][6] Because these devices can diagnose and prevent diseases, they can be widely used in the medical field, and research is ongoing to further develop them for health management, monitoring, and direct treatment applications. [7][8][9][10][11] Current studies are focused on developing multimodal wearable devices to enable roundthe-clock vital sign monitoring, which can be easily integrated with wristwatches, 12 bands, 13 clothing, 14,15 tattoo-like sensory skin patches (electronic-skin), [16][17][18] and contact lenses. 19 The proposed all-day monitoring method first detects the user's biological signals such as body temperature, Sang A Han and Muhammad Naqi contributed equally to this work.…”