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Human skin interactive self-powered wearable piezoelectric bio-e-skin by electrospun poly-L-lactic acid nanofibers for non-invasive physiological signal monitoring
Journal of Materials Chemistry B ( IF 6.1 ) Pub Date : 2017-08-07 00:00:00 , DOI: 10.1039/c7tb01439b Ayesha Sultana 1, 2, 3, 4, 5 , Sujoy Kumar Ghosh 1, 2, 3, 4, 5 , Vitor Sencadas 6, 7, 8, 9, 10 , Tian Zheng 7, 11, 12, 13, 14 , Michael J. Higgins 7, 11, 12, 13, 14 , Tapas Ranjan Middya 1, 2, 3, 4, 5 , Dipankar Mandal 1, 2, 3, 4, 5
Journal of Materials Chemistry B ( IF 6.1 ) Pub Date : 2017-08-07 00:00:00 , DOI: 10.1039/c7tb01439b Ayesha Sultana 1, 2, 3, 4, 5 , Sujoy Kumar Ghosh 1, 2, 3, 4, 5 , Vitor Sencadas 6, 7, 8, 9, 10 , Tian Zheng 7, 11, 12, 13, 14 , Michael J. Higgins 7, 11, 12, 13, 14 , Tapas Ranjan Middya 1, 2, 3, 4, 5 , Dipankar Mandal 1, 2, 3, 4, 5
Affiliation
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Flexible and wearable piezoelectric bio e-skin (PBio-e-skin) based on electrospun poly(L-lactic acid) PLLA nanofiber membrane is demonstrated for non-invasive human physiological signal monitoring and detecting dynamic tactile stimuli. The molecular orientations of the C![[double bond, length as m-dash]](http://www.rsc.org/images/entities/char_e001.gif)
O dipoles by electrospinning technique result in a longitudinal piezoelectric charge co-efficient (d33) value of ∼(3 ± 1) pm V−1 realized by piezoresponse force microscopy, allowing the PBio-e-skin for pressure sensing applications. The robust mechanical strength (Young's modulus ∼50 MPa) of nanofiber membrane ensures PBio-e-skin's superior operational stability over 375
000 cycles. Owing to the superior mechanosensitivity of ∼22 V N−1, PBio-e-skin has the ability to measure subtle movement of muscle in the internal organs such as esophagus, trachea, motion of joints and arterial pressure by recognition of strains on human skin. This flexible and light weight PBio-e-skin precisely detects vital signs and provides important clinical insights without using any external power source. Eventually, the low cost, environmental friendly PBio-e-skin will have a huge impact in a broad range of applications including self-powered wearable health care systems, human–machine interfacing devices, artificial intelligence and prosthetic skin.
中文翻译：
电纺聚-L-乳酸纳米纤维的人皮肤交互式自供电可穿戴式压电生物皮肤，用于非侵入性生理信号监测
基于电纺聚（L-乳酸）PLLA纳米纤维膜的柔性可穿戴压电生物皮肤（PBio-e-skin）已被证明可用于非侵入性人类生理信号监测和检测动态触觉刺激。通过静电纺丝技术使C O偶极子的分子取向导致压电响应力显微镜实现的纵向压电电荷系数（d 33）值为〜（3±1）pm V -1，从而使PBio-e-skin能够用于压力传感应用。纳米纤维膜具有强大的机械强度（杨氏模量约50 MPa），可确保PBio-e-skin在37.5万次循环中具有出色的操作稳定性。由于〜22 VN -1的优异的机械敏感性，PBio-e-skin能够通过识别人体皮肤上的应变来测量诸如食道，气管，关节运动和动脉压等内脏器官中肌肉的细微运动。这种灵活且重量轻的PBio-e-skin可以精确检测生命体征，并在不使用任何外部电源的情况下提供重要的临床见解。最终，低成本，环保的PBio-e-skin将在广泛的应用中产生巨大影响，包括自供电的可穿戴医疗系统，人机界面设备，人工智能和人造皮肤。
更新日期：2017-09-13
O dipoles by electrospinning technique result in a longitudinal piezoelectric charge co-efficient (d33) value of ∼(3 ± 1) pm V−1 realized by piezoresponse force microscopy, allowing the PBio-e-skin for pressure sensing applications. The robust mechanical strength (Young's modulus ∼50 MPa) of nanofiber membrane ensures PBio-e-skin's superior operational stability over 375000 cycles. Owing to the superior mechanosensitivity of ∼22 V N−1, PBio-e-skin has the ability to measure subtle movement of muscle in the internal organs such as esophagus, trachea, motion of joints and arterial pressure by recognition of strains on human skin. This flexible and light weight PBio-e-skin precisely detects vital signs and provides important clinical insights without using any external power source. Eventually, the low cost, environmental friendly PBio-e-skin will have a huge impact in a broad range of applications including self-powered wearable health care systems, human–machine interfacing devices, artificial intelligence and prosthetic skin.
中文翻译：
电纺聚-L-乳酸纳米纤维的人皮肤交互式自供电可穿戴式压电生物皮肤，用于非侵入性生理信号监测
基于电纺聚（L-乳酸）PLLA纳米纤维膜的柔性可穿戴压电生物皮肤（PBio-e-skin）已被证明可用于非侵入性人类生理信号监测和检测动态触觉刺激。
通过静电纺丝技术使C O偶极子的分子取向导致压电响应力显微镜实现的纵向压电电荷系数（d 33）值为〜（3±1）pm V -1，从而使PBio-e-skin能够用于压力传感应用。纳米纤维膜具有强大的机械强度（杨氏模量约50 MPa），可确保PBio-e-skin在37.5万次循环中具有出色的操作稳定性。由于〜22 VN -1的优异的机械敏感性，PBio-e-skin能够通过识别人体皮肤上的应变来测量诸如食道，气管，关节运动和动脉压等内脏器官中肌肉的细微运动。这种灵活且重量轻的PBio-e-skin可以精确检测生命体征，并在不使用任何外部电源的情况下提供重要的临床见解。最终，低成本，环保的PBio-e-skin将在广泛的应用中产生巨大影响，包括自供电的可穿戴医疗系统，人机界面设备，人工智能和人造皮肤。
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