Article
Polymer Science
Jianli Cui, Xueli Nan, Guirong Shao, Huixia Sun
Summary: Researchers have developed a novel flexible piezoresistive sensor based on three-dimensional elastic porous carbon nanotubes (CNTs) sponge, which has a quick response time, high sensitivity, and excellent stability. This sensor can be applied on a large scale and has a broad response range to pressures.
Article
Biochemical Research Methods
Yuqing Xu, Qinping Qiang, Yaru Zhao, Hongxing Li, Li Xu, Chong Liu, Yiya Wang, Yangkun Xu, Chengcheng Tao, Tianchun Lang, Lei Zhao, Bitao Liu
Summary: We have developed a 3D bifunctional flexible sensor based on an MXene melamine sponge, which shows excellent response to different stimuli, such as pressure and humidity. The sensor has super water resistance, wearability, high sensitivity, and good stability, enabling accurate monitoring of human movement and long-term humidity detection.
Article
Chemistry, Physical
Xiyao Fu, La Li, Shuai Chen, Hao Xu, Junzhi Li, Valerii Shulga, Wei Han
Summary: The fiber strain sensor developed based on Ti3C2Tx@P(VDF-TrFE) polymer nanofibers prepared via electrostatic spinning exhibits high gauge factor, rapid response, and outstanding durability, enabling real-time monitoring of human motions and physiological signals, and is suitable for wearable electronic devices.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Engineering, Environmental
Yunfeng Guan, Rong Zhao, Ye Cong, Kai Chen, Jingsong Wu, Hui Zhu, Zhijun Dong, Qin Zhang, Guanming Yuan, Yanjun Li, Jiang Zhang, Xuanke Li
Summary: This article introduces the preparation of a flexible Ti2C MXene film and its application as an electrode in supercapacitors. The study found that the film exhibited excellent electrochemical performance at scan rates of 2 mV/s and 100 mV/s, suggesting its potential as a promising electrode material for supercapacitors.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
Ruzhan Qin, Xin Li, Mingjun Hu, Guangcun Shan, Ramakrishna Seeram, Ming Yin
Summary: A flexible pressure sensor based on MXene and polyvinyl alcohol (PVA) with ultra-high sensitivity and wide sensing range has been fabricated, exhibiting a simple preparation process and low cost.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Chemistry, Physical
Fei Li, Haijun Wang, Siqi Nan, Yunpeng Yang, Zhenchao Wang, Rui Zhu, Tianwei Zhang, Jie Zhang
Summary: Flexible pressure sensors have attracted extensive research interest due to their ability to conformably attach to irregular surfaces. However, adjusting the sensitivity and response range of resistive pressure sensors for practical applications remains a challenge. By designing surface textures with pyramids of different sizes and density distributions, insights into sensing ability are uncovered through finite element analyses and experimental studies. These design strategies enable the construction of a sensor with high sensitivity and adjustable response range, making it suitable for wearable electronics in human health care.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Ya-Wei Cai, Xiao-Nan Zhang, Gui-Gen Wang, Gui-Zhong Li, Da-Qiang Zhao, Na Sun, Fei Li, Hua-Yu Zhang, Jie-Cai Han, Ya Yang
Summary: The study constructed a flexible TENG as a self-powered tactile sensor using a simple method, achieving high sensitivity and showing good application prospects in monitoring complex physiological signals and simulating human touch sensation.
Article
Nanoscience & Nanotechnology
Li-Wei Lo, Junyi Zhao, Haochuan Wan, Yong Wang, Shantanu Chakrabartty, Chuan Wang
Summary: Soft wearable sensors that can respond to and distinguish pressure, strain, and temperature stimuli have been developed. These sensors utilize a porous PDMS sponge coated with a conductive polymer, allowing for simultaneous measurement of resistance and capacitance changes to differentiate between different stimuli.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Tuoyi Su, Nishuang Liu, Dandan Lei, Luoxin Wang, Ziqi Ren, Qixiang Zhang, Jun Su, Zhi Zhang, Yihua Gao
Summary: Flexible pressure sensors have gained significant attention in various fields due to their applications in health monitoring and human-computer interaction. This study presents a paper-based pressure sensor made of MXene/bacterial cellulose film with a three-dimensional isolation layer structure, which also functions as a wearable sound detector. The sensor demonstrates excellent mechanical sensing performance and precise detection of human physiological signals. It can recognize different voice signals and sound attributes by monitoring throat muscle movement, and distinguish various natural sounds through air pressure waves. In addition, it plays a crucial role in sound visualization technology and meets the requirements of environmental protection, as it is lightweight and made of degradable materials.
Article
Chemistry, Multidisciplinary
Wenduo Wang, Jingquan Liu, Ning Zhao, Bin Yang
Summary: In this study, a flexible piezoresistive pressure sensor with high sensitivity and a wide measurement range for in situ occlusal force measurements was developed. The sensor showed excellent performance with high sensitivity, wide measurement range, and fast response time. It has potential applications in oral health.
Article
Nanoscience & Nanotechnology
Hui Zhi, Xiaobo Zhang, Fengya Wang, Peng Wan, Liang Feng
Summary: The study developed a flexible pressure sensor using a MXene/polyaniline/bacterial cellulose (MXene/PANI/BC) aerogel, capable of monitoring subtle motion signals such as finger bending, wrist bending, and pulse beating, as well as being sensitive to NH3. Bluetooth wireless transmission allows real-time monitoring of pressure distribution on a mobile phone, making it an ideal candidate for e-skins.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Harris Varghese, Hasna M. Abdul Hakkeem, Kanika Chauhan, Eshwar Thouti, Saju Pillai, Achu Chandran
Summary: Triboelectric nanogenerators are emerging mechanical energy harvesting devices that can power small-scale electronic devices or function as self-powered sensors in the era of IoT. Observing vibration patterns from different electronic gadgets can help assess their health and detect faults in advance.
Article
Nanoscience & Nanotechnology
Tingjie Chen, Zhiyong Liu, Gang Zhao, Zipeng Qin, Peitao Zheng, John Tosin Aladejana, Zhendong Tang, Mingcen Weng, Xiangfang Peng, Jian Chang
Summary: An aqueous MXene ink obtained by ball-milling is used to fabricate durable and wearable pressure sensors with improved compression capacity and elasticity. The sensors exhibit high sensitivity and rapid response time.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Zhihua Wang, Zeyu Xu, Na Li, Tao Yao, Manling Ge
Summary: In this work, a MXene/PDMS flexible self-powered porous triboelectric pressure sensor (PTPS) is proposed, which meets the increasing demand for smart devices to have portable, durable, and low-cost sensors. The sensor converts applied mechanical force into electrical signals and has high sensitivity, fast response time, and stable performance. It can be applied to various applications such as hand gesture recognition and water drop sensing.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Nanoscience & Nanotechnology
Xue-Feng Zhao, Xiao-Hong Wen, Shu-Lin Zhong, Meng-Yang Liu, Yu-Hang Liu, Xue-Bin Yu, Ru-Guang Ma, David Wei Zhang, Jia-Cheng Wang, Hong-Liang Lu
Summary: The flexible electronic skin integrates 3D hollow MXene spheres/Ag NW hybrid nanocomposite-based embedded stretchable electrodes and T-ZnOw/PDMS film-based capacitive pressure sensors, which can effectively sense strain and pressure, with stable and fast response time. It can achieve multiplex detection and is suitable for biomimetic soft wearable devices, object recognition, and robotic manipulation.
ACS APPLIED MATERIALS & INTERFACES
(2021)