Piezoelectric biosensor for smart cardiovascular grafts based on NaNbO3 fibers/PDMS structured composite

D'Ambrogio, Giulia; Zahhaf, Omar; Le, Minh‐Quyen; Bordet, Marine; Lermusiaux, Patrick; Schiava, Nellie Della; Liang, Richard; Cottinet, Pierre Jean; Capsal, Jean‐Fabien

doi:10.1016/j.matdes.2022.111195

Cited by 17 publications

(9 citation statements)

References 53 publications

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“…The typical piezoelectric response waveform to the arterial pulses [19,42,55,56] shown in figure 2(B) generally includes three gradually weakening peaks, which is similar to the timevarying BP waveform. In contrast, the common piezoelectric response to arterial pulses [22][23][24][57][58][59][60] performs a strong reversible peak followed the first peak in the waveform as shown in figures 2(C) and (D), which is not consistent with the usual features of normal BP.…”

Section: Arterial Pulse Piezoelectric Dynamicsmentioning

confidence: 80%

Piezoelectric approaches for wearable continuous blood pressure monitoring: a review

Yi¹,

Zhang²

2022

J. Micromech. Microeng.

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Portable and timely monitoring of blood pressure (BP) is critical for early prevention and daily control of hypertension. Despite tremendous efforts, achieving a wearable and continuous BP monitoring system remains a challenge. Of special attention is the piezoelectric approach with intrinsically good dynamic response characteristics and high fidelity through correlating arterial pulse waves with BP waves. However, the piezoelectric arterial pulse dynamic response is elusive. Here, we review state-of-the-art wearable BP measurements and arterial pulse wave monitoring using piezoelectric sensors. We then discuss the challenges and some possible solutions in wearable continuous BP monitoring. Finally, we propose a potential wearable BP monitoring strategy using arterial pulse piezoelectric dynamics.

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Section: Arterial Pulse Piezoelectric Dynamicsmentioning

confidence: 80%

Piezoelectric approaches for wearable continuous blood pressure monitoring: a review

Yi¹,

Zhang²

2022

J. Micromech. Microeng.

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“…Electronic circuits require very specific functional characteristics, and this continues to be a challenge for printing techniques. In order to overcome this challenge, two different approaches can be distinguished: process engineering, where the currently existing materials are tailored in terms of shape, geometry, and interconnectivity [ 50 , 51 , 52 , 53 , 54 , 55 ], or material engineering, where new materials with tailored functional characteristics for each application are developed [ 56 , 57 , 58 ]. In particular, for ferroelectric materials, the main approach for tailoring electromechanical coupling is to include bulk fillers with large piezoelectric constants into the polymeric matrix [ 59 , 60 , 61 ].…”

Section: Process and Architecture Of Bidirectional Sensormentioning

confidence: 99%

Design Rules of Bidirectional Smart Sensor Coating for Condition Monitoring of Bearings

Nguyen

Bernadet

et al. 2023

Polymers

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This paper reports a novel monitoring technique of bearings’ bidirectional load (axial and radial) based on a smart sensor coating, which is screen printed onto the surface of a cross-shaped steel substrate. To ensure the accuracy and stability of measurement as well as the durability of the printed coating, the developed prototype is built according to design rules commonly used in electronic circuits. The finite element model (FEM) is used to predict the mechanical property of the tested substrate under either unidirectional or bidirectional loads. Regarding the output voltage of the piezoelectric sensor, experimental results are revealed to be well-corelated to the numerical simulation. It is pointed out that the output signal generated from the sensor (electrode) could be particularly affected due to the capacitive parasite coming from the conductive tracks (CTs). Such a phenomenon might be reduced by printing them on the dielectric layer rather than on the piezocomposite layer. The study also investigates a highly anisotropic shape of electrodes (rectangular instead of circle), indicating that the orientation of such electrodes (axial or radial) does affect the output measurement. To sum up, the high performance of a sensor network coating depends not only on the ultimate characteristics of its own materials, but also on its structural design. Such an issue has been rarely reported on in the literature, but is nonetheless crucial to achieving reliable condition monitoring of bearings, especially for multidirectional loads—a key signature of early failure detection.

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“…D'Ambrogio et al designed a novel biocompatible piezoelectric composite for the self‐monitoring of smart vascular grafts. [ 51 ] The piezoelectric composite made of sodium niobate (NanbO 3 ) microfibers (MF) embedded in a PDMS matrix can be integrated into grafts for monitoring blood pressure and identifying thrombus‐related abnormalities and enable wireless power and data transmission through resonant inductive coupling. The study points out that the low elastic modulus matrix provides a balance of piezoelectric sensitivity and tensile properties.…”

Section: Direct Monitoring Of Blood Vessels By Implantable Sensorsmentioning

confidence: 99%

Implantable Sensors for Post‐Surgical Monitoring of Vascular Complications

Zhao,

Eid,

Zhang

et al. 2023

Advanced Sensor Research

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For surgeries involving vessel anastomosis, it is critical to ensure fluent blood flow and to monitor the occurrence of vascular complications. However, the current clinical methods are ineffective in achieving direct, continuous, and accurate monitoring. At present, implantable sensors are widely used and explored in various biomedical applications, including cardiovascular disease, neurological disorders, cancer treatment, and health monitoring. They can be easily placed during surgical procedures and offer irreplaceable advantages including directness, continuity, and higher accuracy of monitoring. Based on this, the types of implantable sensors for vascular monitoring are reviewed, and some preclinical research advances which are expected to provide promising methods for post‐surgical vascular complications are discussed. In the end, the future perspectives of the research of implantable sensors for post‐surgical monitoring are put forward. It is believed that implantable sensors hold great promise in clinical translation, providing physicians with more accurate, continuous, and real‐time monitoring results, helping to improve surgical success and patient outcomes.

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Piezoelectric biosensor for smart cardiovascular grafts based on NaNbO3 fibers/PDMS structured composite

Cited by 17 publications

References 53 publications

Piezoelectric approaches for wearable continuous blood pressure monitoring: a review

Piezoelectric approaches for wearable continuous blood pressure monitoring: a review

Design Rules of Bidirectional Smart Sensor Coating for Condition Monitoring of Bearings

Implantable Sensors for Post‐Surgical Monitoring of Vascular Complications

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