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A Versatile Bonding Method for PDMS and SU-8 and Its Application towards a Multifunctional Microfluidic Device
2016
Micromachines
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This hybrid system was used for the effective trapping of microparticles on-chip, and the selective releasing and identification of predefined trapped microparticles. ...
The hybrid fabrication approach presented here, based on the PDMS-SU-8 bonding, enables multifunctional integration in complex microfluidic devices. ...
Acknowledgments: We thank Neng Wan for the help of tensile test. ...
doi:10.3390/mi7120230
pmid:30404401
pmcid:PMC6190230
fatcat:cm57dvlcgnejfa4yzcwwgotgoa
Instrumented Microphysiological Systems for Real-time Measurement and Manipulation of Cellular Electrochemical Processes
2019
iScience
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Specifically, the functionalization of conductive materials with ligand-binding aptamers has permitted the utilization of traditional electronic materials for bioelectronic sensing. ...
In this review, we provide an overview of the sensing techniques that are relevant to MPS development and highlight the different organ systems to integrate instrumentation for measurement and manipulation ...
Koppes acknowledge the support from the National Institutes of Health (NIH, R21EB025395-01) and the Department of Chemical Engineering, College of Engineering at Northeastern University. ...
doi:10.1016/j.isci.2019.10.052
pmid:31715497
pmcid:PMC6849363
fatcat:2364w5qo3bb3tay574rhytmi2u
Flexible and printed microwave plasmonic sensor for noninvasive measurement
2020
IEEE Access
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The calculated figure of merit is as high as 1178. The sensor can find wider applications in the flexible and wearable device field for continuous health monitoring. ...
The printed electrodes for detecting direct current signal changes of human vital signs have been fully investigated. ...
The FOM of the sensor reaches up to 1178. More works can be conducted for the practical applications of wearable and flexible microwave sensors for measuring subtle changes of blood glucose. ...
doi:10.1109/access.2020.3020268
fatcat:v4o4hacsgjdutptfmz4c5s3d54
A surface functionalized nanoporous titania integrated microfluidic biochip
2014
Nanoscale
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assembly for detection of total cholesterol. ...
We present a novel and efficient nanoporous microfluidic biochip consisting of a functionalized chitosan/anatase titanium dioxide nanoparticles electrode integrated in a polydimethylsiloxane (PDMS) microchannel ...
Acknowledgements The authors thank Director CSIR-NPL, New Delhi, India for the facilities. We thank Mr Sandeep, AFM Lab, CSIR-NPL, New Delhi for the AFM analysis. Md ...
doi:10.1039/c4nr03791j
pmid:25316118
fatcat:o3oi6hfyuzgnhlg546n3oa2t2a
Recent advances in skin-like wearable sensors: sensor design, health monitoring, and intelligent auxiliary
2022
Sensors & Diagnostics
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Recent advances in health monitoring devices and intelligent assistive devices based on skin sensors. ...
conductive fluid to the skin in contact with the electrode and increasing the contact area and pressure between the electrode and the skin. ...
To improve the rate of gestural identification, the investigators also designed electrical models of electrode skin contact impedance, which contributed to an improved rate of gestural identification. ...
doi:10.1039/d2sd00037g
fatcat:awtc4w6zd5efpgvvwifperylru
Wearable sensors: modalities, challenges, and prospects
2018
Lab on a Chip
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Non-invasive wearable sensing technology extracts mechanical, electrical, optical, and chemical information from the human body. ...
Joseph Wang is supported by the Defense Threat Reduction Agency Joint Science and Technology Office for Chemical and Biological Defense (HDTRA 1-16-1-0013) and the UCSD Center for Wearable Sensors (CWS ...
Acknowledgements The authors at the Univ. of Cincinnati acknowledge support from the National Science Foundation and the industrial members of the Center for Advanced Design and Manufacturing of Integrated ...
doi:10.1039/c7lc00914c
pmid:29182185
fatcat:ziog2wd2lzb2bdcezewvdrwzra
Utilisation of layered piezoelectric resonators for the online measurement of mass density and viscosity of fluids
2009
e & i Elektrotechnik und Informationstechnik
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In both cases sensor versions are available for low sample volumes of 250 ml and 130 ml, respectively. ...
In this paper layered resonant piezoelectric sensors for liquids are investigated and it is shown that they are advantageous because of their high resolution and accuracy and especially because of the ...
GRD1-2001-41816, by Anton Paar GmbH, Graz, Austria, and by the Austrian Industrial Research Promotion Fund (FFF), project No. QVD 6=721. ...
doi:10.1007/s00502-009-0613-6
fatcat:etkbkdkspzgdfh5rrhlvf5pn44
Classification and Applications of Humidity Sensors: A Review
2018
International Journal for Research in Applied Science and Engineering Technology
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It explains role of humidity in human life and need of humidity. It also deals with the experimental techniques for the development of humidity sensors and the water adsorption mechanism. ...
This review introduces an overview of importance of humidity, methods of their measurement. It gives Detailed description of humidity sensors; their types and properties have been discussed. ...
on dry-
and wet-bulb temperature
measurements
No requirement of
calibration
Requirement of
regular replacement
of wick and distilled water,
Requirement
of air-flow with high flow rate
(3 m/ ...
doi:10.22214/ijraset.2018.4616
fatcat:ep6l3y34ljcw5awzhgsmfr2wse
Chemical Sensors and Measurement
[chapter]
2011
Advanced Topics in Science and Technology in China
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With the rapid development of microelectronics and microprocessing technology, chemical sensors have grown to be more and more miniaturized and integrated. ...
Meanwhile, microfluidic chips enable continuous monitoring of chemical substances in living organisms. P. Wang et al., Biomedical Sensors and Measurement ...
and random flow of the fluid during reaction and storage, the uniformity of mixing and the avoiding of bubble formation; The calculation of reagent and production volumes, the compatibility, reliability ...
doi:10.1007/978-3-642-19525-9_4
fatcat:4deb75zjsrgt5cxlsarlrczns4
Design and engineering of high‐performance triboelectric nanogenerator for ubiquitous unattended devices
2021
EcoMat
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Despite the recent advances in the design and development of various triboelectric devices, these devices' output still falls short in meeting the practical needs of directly powering electronics and sensors ...
The ubiquitous applications of the TENGs in micro/high‐voltage power source, multifunctional intelligence, blue energy harvesting, and self‐powered electrochemical system are also discussed. ...
Zhou et al 235 demonstrated a fluid energy harvester based on an arc-shaped TENG for harvesting the wind and water flow energy. ...
doi:10.1002/eom2.12093
doaj:cc475013e8ab4015ae817f5781aa01cf
fatcat:igw5mnz3bje2nevstor5ee7kt4
Fabrication of x-ray absorption gratings via micro-casting for grating-based phase contrast imaging
2013
Journal of Micromechanics and Microengineering
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The piezoelectrically excited modal force is calculated directly and provides insight into design optimization for switching speed. ...
The multiple degree of freedom analytical model, based on modal decomposition, utilizes modal parameters obtained from finite element analysis and an analytical model of piezoelectric actuation. ...
For an input power of 3.32 W, a maximum of 300 Pa pressure and 1.8 µl min −1 flow rate was observed. ...
doi:10.1088/0960-1317/24/1/015007
fatcat:t3acvadwcrhsfcsxtxmefzyhda
Triboelectric Nanogenerators and Hybridized Systems for Enabling Next-Generation IoT Applications
2021
Research
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utilization rate of multisource energies. ...
The recent progress of TENG-based hybrid generators and hybridized systems for the outdoor, indoor, wearable, and implantable applications is also provided. ...
for Health ("Intelligent Monitoring System Based on Smart Wearable Sensors and Artificial Technology for the Treatment of Adolescent Idiopathic Scoliosis," R-263-501-017-133). ...
doi:10.34133/2021/6849171
pmid:33728410
pmcid:PMC7937188
fatcat:ddllksz73vaoldm4cxxlqgue5e
Electrical Resistivity and Electrical Impedance Measurement in Mortar and Concrete Elements: A Systematic Review
2020
Applied Sciences
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This paper aims at analyzing the state-of-the-art techniques to measure electrical impedance (and, consequently, electrical resistivity) of mortar/concrete elements. ...
changes whenever phenomena modifying the conductivity of mortar/concrete (e.g., degradation or attacks by external agents) occur, this review aims to serve as a guide for those interested in this type ...
spacing of 38 mm) and measure the voltage drop to calculate the impedance of the specimen. ...
doi:10.3390/app10249152
fatcat:u635putttzgp5p6ue33qtd2que
2019 Index IEEE Transactions on Instrumentation and Measurement Vol. 68
2019
IEEE Transactions on Instrumentation and Measurement
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., +, TIM Oct. 2019 3699-3711 Optical fiber polarization Distributed Measurement of Polarization Characteristics for a Multifunctional Integrated Optical Chip: A Review. ...
QCM-Micropillar-Based Coupled Resonators in the Detection of Gas Mass Flow Rates. ...
Image scanners Nonlinear Reconstruction of Multilayer Media in Scanning Microwave Microscopy. Wei, Z., +, TIM Jan. 2019 197-205 ...
doi:10.1109/tim.2019.2956662
fatcat:kotlu7gwcngrdkelerc5va2hqe
Self-powered Sensors and Systems Based on Nanogenerators
2020
Sensors
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Sensor networks are essential for the development of the Internet of Things and the smart city. A general sensor, especially a mobile sensor, has to be driven by a power unit. ...
Based on the piezoelectric nanogenerator (PENG) and triboelectric nanogenerator (TENG), extensive studies have focused on self-powered sensors. ...
Thanks to many group members in Professor Wang's group for their contributions in developing the PENG and TENG technologies. ...
doi:10.3390/s20102925
pmid:32455713
pmcid:PMC7288337
fatcat:nwkmypfznrdpraxtwntj354t5i
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