Magnetic Nanocomposite Cilia Tactile Sensor

Alfadhel, Ahmed; Kosel, Jürgen

doi:10.1002/adma.201504015

Cited by 171 publications

(143 citation statements)

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“…Various methods designed for sensing applications, such as nanostructured materials, [4][5][6] metafilms, [7] carbon dots, [8,9] electrodes [10,11] and elastic nanocomposite cilia structures, [12] and wearable sensors have been reported. The monitoring of the nanoparticles in air is necessary for safety control, because nanoscale particles generated from vehicles and industrial processes can penetrate the lungs and spread to other organs, resulting in serious respiratory and cardiac diseases.…”

Section: Doi: 101002/adma201604920mentioning

confidence: 99%

Single Nanoparticle Detection Using Optical Microcavities

et al. 2017

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Detection of nanoscale objects is highly desirable in various fields such as early-stage disease diagnosis, environmental monitoring and homeland security. Optical microcavity sensors are renowned for ultrahigh sensitivities due to strongly enhanced light-matter interaction. This review focuses on single nanoparticle detection using optical whispering gallery microcavities and photonic crystal microcavities, both of which have been developing rapidly over the past few years. The reactive and dissipative sensing methods, characterized by light-analyte interactions, are explained explicitly. The sensitivity and the detection limit are essentially determined by the cavity properties, and are limited by the various noise sources in the measurements. On the one hand, recent advances include significant sensitivity enhancement using techniques to construct novel microcavity structures with reduced mode volumes, to localize the mode field, or to introduce optical gain. On the other hand, researchers attempt to lower the detection limit by improving the spectral resolution, which can be implemented by suppressing the experimental noises. We also review the methods of achieving a better temporal resolution by employing mode locking techniques or cavity ring up spectroscopy. In conclusion, outlooks on the possible ways to implement microcavity-based sensing devices and potential applications are provided.

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Section: Doi: 101002/adma201604920mentioning

confidence: 99%

Single Nanoparticle Detection Using Optical Microcavities

et al. 2017

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“…Sensors with flexible substrates [8][9][10][11][12][13][14][15] have been drawing attention recently, due to their advantages over the ones with rigid substrates in certain applications like higher mechanical flexibility, less weight, reduced cost or higher tolerance to strain. Flexible sensors are fabricated using different techniques and different raw materials are used to manufacture them.…”

Section: Introductionmentioning

confidence: 99%

Urinary incontinence monitoring system using laser-induced graphene sensors

2017

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CitationNag A, Mukhopadhyay S, Kosel J (2017) Urinary incontinence monitoring system using laser-induced graphene sensors. 2017 IEEE SENSORS. Abstract-This paper presents the design and development of a sensor patch to be used in a sensing system to deal with the urinary incontinence problem primarily faced by women and elderly people. The sensor patches were developed from laserinduced graphene from low-cost commercial polyimide (PI) polymers. The graphene was manually transferred to a commercial tape, which was used as sensor patch for experimentation. Salt solutions with different concentrations were tested to determine the most sensitive frequency region of the sensor. The results are encouraging to further develop this sensor in a platform for a fully functional urinary incontinence detection system

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“…Each sensor has an active area of 1.25 mm × 1.25 mm, and consists of nine cilia that are 200 µm in diameter 1 mm long. In general, it is easy to obtain different cilia diameters and aspect ratios with the facile fabrication process reported in this paper, enabling simple control of the sensors' performance [14]. The unique concept combining cilia and magnetic sensing allows detecting shear and vertical forces in dry or wet environments, making it suitable for applications in prosthetics, medical tools or underwater robots.…”

Section: Introductionmentioning

confidence: 99%

“…The DC operated sensor can detect static and dynamic forces as well as vibration and fluid flow. This paper is a progressive work of a previously reported tactile sensor [14,15] and a flow sensor [9] that uses a similar concept but with a high frequency magnetic sensor to detect the stray field of the cilia. Here we move to DC operation by using GMR sensors to simplify the required circuitry and to allow the realization of arrays with small sensing pixels.…”

Section: Introductionmentioning

confidence: 99%