Flexible electrically conductive biomass-based aerogels for piezoresistive pressure/strain sensors

2019 ◽  
Vol 373 ◽  
pp. 1357-1366 ◽  
Author(s):  
Jieyu Huang ◽  
Dawei Li ◽  
Min Zhao ◽  
Huizhen Ke ◽  
Alfred Mensah ◽  
...  
2017 ◽  
Vol 9 (16) ◽  
pp. 14207-14215 ◽  
Author(s):  
Shuying Wu ◽  
Jin Zhang ◽  
Raj B. Ladani ◽  
Anil R. Ravindran ◽  
Adrian P. Mouritz ◽  
...  

2018 ◽  
Vol 6 (34) ◽  
pp. 9200-9207 ◽  
Author(s):  
Zhiwen Wang ◽  
Hongwei Zhou ◽  
Jialiang Lai ◽  
Bo Yan ◽  
Hanbin Liu ◽  
...  

Extremely stretchable and electrically conductive PAA/PANI hydrogels with dually synergistic networks are fabricated for wearable resistive-type strain sensors.


2016 ◽  
Vol 4 (1) ◽  
pp. 157-166 ◽  
Author(s):  
Hu Liu ◽  
Yilong Li ◽  
Kun Dai ◽  
Guoqiang Zheng ◽  
Chuntai Liu ◽  
...  

Strain sensors with high sensitivity are reported in the thermoplastic polyurethane nanocomposites with ultralow graphene loading.


2021 ◽  
Vol 2086 (1) ◽  
pp. 012010
Author(s):  
N A Demidenko ◽  
A V Kuksin ◽  
E S Davydova ◽  
V A Zaborova ◽  
L P Ichkitidze ◽  
...  

Abstract Nowadays there is a great need for the development of flexible strain sensors that can register human body’s movements. In the field of wearable and smart electronics such sensors are actively being developed. Resistive-type flexible sensors are the easiest to manufacture. Their mechanism of sensitivity to deformations is based on a change in electrical resistance during deformations. In this work, we have developed the functional material for strain sensor with high tensile properties, strength and electrical conductivity. This material based on a matrix of silicone elastomer and a multi-walled carbon nanotubes (MCNTs) filler. The material showed a high elongation of 950 % with a tensile strength of 1.437 MPa. The manufacturing process included laser structuring of MCNTs to form an electrically conductive network. The linear gauge factor was 3.4, and the angular gauge factor was 0.26.


2018 ◽  
Vol 6 (45) ◽  
pp. 12121-12141 ◽  
Author(s):  
Hu Liu ◽  
Qianming Li ◽  
Shuaidi Zhang ◽  
Rui Yin ◽  
Xianhu Liu ◽  
...  

Electrically conductive polymer composite-based smart strain sensors with different conductive fillers, phase morphology, and imperative features were reviewed.


Author(s):  
K. A. Fisher ◽  
M. G. L. Gustafsson ◽  
M. B. Shattuck ◽  
J. Clarke

The atomic force microscope (AFM) is capable of imaging electrically conductive and non-conductive surfaces at atomic resolution. When used to image biological samples, however, lateral resolution is often limited to nanometer levels, due primarily to AFM tip/sample interactions. Several approaches to immobilize and stabilize soft or flexible molecules for AFM have been examined, notably, tethering coating, and freezing. Although each approach has its advantages and disadvantages, rapid freezing techniques have the special advantage of avoiding chemical perturbation, and minimizing physical disruption of the sample. Scanning with an AFM at cryogenic temperatures has the potential to image frozen biomolecules at high resolution. We have constructed a force microscope capable of operating immersed in liquid n-pentane and have tested its performance at room temperature with carbon and metal-coated samples, and at 143° K with uncoated ferritin and purple membrane (PM).


2018 ◽  
Vol 46 (2) ◽  
pp. 78-92 ◽  
Author(s):  
A. I. Kubba ◽  
G. J. Hall ◽  
S. Varghese ◽  
O. A. Olatunbosun ◽  
C. J. Anthony

ABSTRACT This study presents an investigation of the inner tire surface strain measurement by using piezoelectric polymer transducers adhered on the inner liner of the tire, acting as strain sensors in both conventional and dual-chamber tires. The piezoelectric elements generate electrical charges when strain is applied. The inner liner tire strain can be found from the generated charge. A wireless data logger was employed to measure and transmit the measured signals from the piezoelectric elements to a PC to store and display the readout signals in real time. The strain data can be used as a monitoring system to recognize tire-loading conditions (e.g., traction, braking, and cornering) in smart tire technology. Finite element simulations, using ABAQUS, were employed to estimate tire deformation patterns in both conventional and dual-chamber tires for pure rolling and steady-state cornering conditions for different inflation pressures to simulate on-road and off-road riding tire performances and to compare with the experimental results obtained from both the piezoelectric transducers and tire test rig.


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