Results 251 to 260 of about 4,672,430 (332)

Multiscale Heterogeneities-Based Piezoresistive Interfaces with Ultralow Detection Limitation and Adaptively Switchable Pressure Detectability

ACS Nano
Mechanical compliance and electrical enhancement are crucial for pressure sensors to promote performances when perceiving external stimuli. Here we propose a bioinspired multiscale heterogeneity-based interface to adaptively regulate its structure layout and switch to desirable piezoresistive behaviors with ultralow detection limitation.
Xuecheng He, Zequn Cui, Feilong Zhang, Yanzhen Li, Jiaqi Tu, Jinwei Cao, Jianwu Wang, Yuchun Qiao, Pengxu Xi, Tailin Xu, Xiaodong Chen, Xueji Zhang   +11 more
openaire   +3 more sources

Miniature piezoresistive sensor for detecting volatile organic components

Sensors and Actuators B: Chemical, 2021
Abstract This paper reports a piezoresistive gas sensor, which detects the stress of polymer swollen due to sorption of trace gas molecules. The sensor consists of a Si-polymer composite and a Si cantilever with a piezoresistor at the support. The stress is transformed via the cantilever lateral deflection to the strain at the piezoresistor at the ...
Masaya Toda, Krzysztof Moorthi, Takumi Hokama, Zhuqing Wang, Mai Yamazaki, Takahito Ono   +5 more
openaire   +1 more source

Skin-inspired flexible and high-performance MXene@polydimethylsiloxane piezoresistive pressure sensor for human motion detection.

Journal of Colloid and Interface Science, 2022
In recent years, flexible high-performance piezoresistive pressure sensors have attracted considerable attention for the important application potential in the emerging fields of smart robots, wearable electronics and electronic skin. Herein, inspired by
Baodeng Chen, Lin Zhang, Hongqiang Li, Xuejun Lai, Xingrong Zeng   +4 more
semanticscholar   +1 more source

Piezoresistive detection of acoustic waves

Review of Scientific Instruments, 2003
A simple and cost-effective method for detecting propagation of acoustic waves based on the harmonic oscillations of a piezoresistive microcantilever is presented. Monitoring the Fourier amplitude of the microcantilever’s fundamental frequency, the dependence of the detected amplitude upon the acoustic source location, is measured.
A. Passian, P. G. Evans, V. K. Varma, T. L. Ferrell, T. Thundat   +4 more
openaire   +1 more source

Piezoresistive Microcantilevers for Biomolecular Force Detection

2007 Spanish Conference on Electron Devices, 2007
This paper reports the development of piezoresistive microcantilevers for the detection of biomolecules by the measurement of intermolecular binding forces. The detection of the small forces involved in molecular recognition (
Guillermo Villanueva, Gemma Rius, Josep Montserrat, Francesc Perez-Murano, Joan Bausells   +4 more
openaire   +1 more source

A Piezoresistive Array-Based Force Sensing Technique for Sleeping Posture and Respiratory Rate Detection for SAS Patients

IEEE Sensors Journal, 2023
Sleep apnea syndrome (SAS) is a high incidence respiratory disorder disease with potential mortality risk. Thus, researchers continuously present diverse techniques to monitor sleeping posture and respiratory rate (RR) which are closely correlated to the
Zihao Wang, Zhipeng Sui, Renrui Wang, Aojie Zhang, Zhao Zhang, Feng Lin, Junliang Chen, Shuo Gao   +7 more
semanticscholar   +1 more source

Antibody-based protein detection using piezoresistive cantilever arrays

Nanotechnology, 2007
A piezoresistive cantilever array platform with electrical read-out was applied for protein detection using GST (glutathione-S-transferase) and GST antibodies as a model system. Sensing was performed in the static deflection mode under constant flow conditions. The GST antibodies were directly immobilized on the cantilever gold surface by means of free
Dauksaite, V., Lorentzenn, M., Besenbacher, Flemming, Kjems, Jørgen   +3 more
openaire   +2 more sources

Sponge-Hosting Polyaniline Array Microstructures for Piezoresistive Sensors with a Wide Detection Range and High Sensitivity.

ACS Applied Materials and Interfaces, 2022
The development of highly elastic spongy conductors is attractive for use in piezoresistive sensors due to their low cost, easy fabrication, and wide sensing range.
Le Li, Xuran Bao, Jian Meng, Chao Zhang, Tianxi Liu   +4 more
semanticscholar   +1 more source

Remote infrared radiation detection using piezoresistive microcantilevers

Applied Physics Letters, 1996
A novel micromechanical infrared (IR) radiation sensor has been developed using commercially available piezoresistive microcantilevers. Microcantilevers coated with a heat absorbing layer undergo bending due to the differential stress between the top layer (coating) and the substrate.
P. G. Datskos, P. I. Oden, T. Thundat, E. A. Wachter, R. J. Warmack, S. R. Hunter   +5 more
openaire   +1 more source

Silicon Microcantilevers with Piezoresistive and MSE Detection

2009 Spanish Conference on Electron Devices, 2009
We have fabricated 340 nm thick U-shaped microcantilevers with electrical output to be used as sensors for biomolecular detection, which requires a force resolution better than 100 pN. Piezoresistors or MOS transistors have been used as integrated electromechanical transducers. The devices have been fabricated by N-type doping using As ion implantation
Giordano Tosolini, Guillermo Villanueva, Joan Bausells   +2 more
openaire   +1 more source