Dynamic characterization of a polymer-based microfluidic device for distributed-load detection

Gu, Wenting; Shen, Jiayue; Yang, Yichao; Hao, Zhili

doi:10.1016/j.sna.2014.11.021

Cited by 5 publications

(2 citation statements)

References 28 publications

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“…Microfluidic devices which contain microchannel are used to lead liquid or gaseous analytes passing through microchamber, and the flow rate of analytes can be controlled and managed at different scales by pump [12], [13]. Compare sensing techniques with and without microfluidic device.…”

Section: Introductionmentioning

confidence: 99%

Dynamic and Wireless Sensing Measurements of Potentiometric Glucose Biosensor Based on Graphene and Magnetic Beads

et al. 2015

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In this paper, the arrayed flexible pH sensor and glucose biosensor modified by magnetic beads and graphene were proposed. The ruthenium dioxide (RuO 2 ) sensing films were deposited by radio frequency sputtering system and the screenprinted technique was used to construct the silver conducting wires and insulation layer of the RuO 2 electrodes. In order to enhance performance of the pH sensor and glucose biosensor, the microfluidic device had been utilized and developed. In the measurement processes, the different pH and glucose solutions were investigated in various flow rates. According to the experimental results, the average sensitivity of the pH sensor was enhanced from 52.280 to 57.981 mV/pH and the average sensitivity of the RuO 2 /graphene/magnetic bead-GO x -Nafion glucose biosensor was enhanced from 10.628 to 13.541 mV/mM. With regard to the wireless sensing measurements, the wireless sensing system which complied the ZigBee standard was employed to transmit the signals of the pH or glucose measurements in this investigation, and the system consisted of the Xbee device, Arduino Mega 2560, readout circuit, pH or glucose biosensor and computer. According to the experimental results, the average sensitivity and linearity of the pH sensor were 51.063 mV/pH and 0.988, respectively, and the average sensitivity and linearity of the RuO 2 /graphene/magnetic bead-GO x -Nafion glucose biosensor were 11.005 mV/mM and 0.995, respectively.

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Section: Introductionmentioning

confidence: 99%

Dynamic and Wireless Sensing Measurements of Potentiometric Glucose Biosensor Based on Graphene and Magnetic Beads

et al. 2015

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“…A prototype filled with 1-ethyl-3-methylimidazolium dicyanamide underwent further performance evaluation and testing against PDMS samples having voids inside, demonstrating an efficient acquisition of spatially varying elasticity/viscoelasticity of heterogeneous soft materials (Cheng et al, 2013). Through dynamic characterization, the amplitude ratio and the phase shift between the sinusoidal load and deflection of the device at different frequencies were analyzed into dynamic stiffness and damping of the device (Gu et al, 2015). Then, the system-level parameters of the second-order mechanical system device were extracted.…”

Section: Resistive-based Microfluidic Tactile Sensorsmentioning

confidence: 99%

Tactile Sensing for Minimally Invasive Surgery: Conventional Methods and Potential Emerging Tactile Technologies

Othman¹,

Lai²,

Abril³

et al. 2022

Front. Robot. AI

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As opposed to open surgery procedures, minimally invasive surgery (MIS) utilizes small skin incisions to insert a camera and surgical instruments. MIS has numerous advantages such as reduced postoperative pain, shorter hospital stay, faster recovery time, and reduced learning curve for surgical trainees. MIS comprises surgical approaches, including laparoscopic surgery, endoscopic surgery, and robotic-assisted surgery. Despite the advantages that MIS provides to patients and surgeons, it remains limited by the lost sense of touch due to the indirect contact with tissues under operation, especially in robotic-assisted surgery. Surgeons, without haptic feedback, could unintentionally apply excessive forces that may cause tissue damage. Therefore, incorporating tactile sensation into MIS tools has become an interesting research topic. Designing, fabricating, and integrating force sensors onto different locations on the surgical tools are currently under development by several companies and research groups. In this context, electrical force sensing modality, including piezoelectric, resistive, and capacitive sensors, is the most conventionally considered approach to measure the grasping force, manipulation force, torque, and tissue compliance. For instance, piezoelectric sensors exhibit high sensitivity and accuracy, but the drawbacks of thermal sensitivity and the inability to detect static loads constrain their adoption in MIS tools. Optical-based tactile sensing is another conventional approach that facilitates electrically passive force sensing compatible with magnetic resonance imaging. Estimations of applied loadings are calculated from the induced changes in the intensity, wavelength, or phase of light transmitted through optical fibers. Nonetheless, new emerging technologies are also evoking a high potential of contributions to the field of smart surgical tools. The recent development of flexible, highly sensitive tactile microfluidic-based sensors has become an emerging field in tactile sensing, which contributed to wearable electronics and smart-skin applications. Another emerging technology is imaging-based tactile sensing that achieved superior multi-axial force measurements by implementing image sensors with high pixel densities and frame rates to track visual changes on a sensing surface. This article aims to review the literature on MIS tactile sensing technologies in terms of working principles, design requirements, and specifications. Moreover, this work highlights and discusses the promising potential of a few emerging technologies towards establishing low-cost, high-performance MIS force sensing.

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Characteristic of arrayed flexible glucose biosensor integrated with the microfluidic device

Chen

Liao

Huang

et al. 2015

2015 IEEE International Conference on Electron Devices and Solid-State Circuits (EDSSC)

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Dynamic characterization of a polymer-based microfluidic device for distributed-load detection

Cited by 5 publications

References 28 publications

Dynamic and Wireless Sensing Measurements of Potentiometric Glucose Biosensor Based on Graphene and Magnetic Beads

Dynamic and Wireless Sensing Measurements of Potentiometric Glucose Biosensor Based on Graphene and Magnetic Beads

Tactile Sensing for Minimally Invasive Surgery: Conventional Methods and Potential Emerging Tactile Technologies

Characteristic of arrayed flexible glucose biosensor integrated with the microfluidic device

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