Surface Plasmon Resonance-Based Optical Fiber Embedded in PDMS for Temperature Sensing

Velázquez-González, Jesús Salvador; Monzón-Hernández, David; Martínez-Piñón, F.; May-Arrioja, Daniel A.; Hernández-Romano, Iván

doi:10.1109/jstqe.2016.2628022

Cited by 55 publications

(17 citation statements)

References 15 publications

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“…With a conventional microfluidic device made from PDMS, the typical scheme of on-chip optical detection is to place optical fibers perpendicular to the microfluidic channel, which has limited light pass (height/width of the channel; hundreds of μm) and thus lower sensitivity. Although a few papers reported methods to embed optical fibers in PDMS parallelly to a microfluidic channel , because of the microscale of the features and the difficulty to manually align the two components, these protocols are highly skill-based and not widely translational. 3D printing can circumvent this issue because rigid structures with precise alignments can be easily fabricated.…”

Section: Resultsmentioning

confidence: 99%

“…Although a few papers reported methods to embed optical fibers in PDMS parallelly to a microfluidic channel 29,30 , due to the microscale of the features and the difficulty to manually align the two components, these protocols are highly skill-based and not widely translational. 3Dprinting can circumvent this issue because rigid structures with precise alignments can be easily fabricated.…”

Section: The Detector Device That Allows For Direct Optical Measurementsmentioning

confidence: 99%

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3D-Printed Microfluidic Devices for Enhanced Online Sampling and Direct Optical Measurements

et al. 2020

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3D printing has emerged as a robust technique to fabricate reliable and reproducible microfluidic devices. However, a limitation of 3D-printed devices has been the low transparency even when printed in a "clear" material. There are currently no reports regarding direct optical measurements through a 3D-printed device. Here, we present for the first time that the printing orientation can affect the transparency of a 3D-printed object. With the optimal orientation, we printed a microfluidic detector that was sufficiently transparent (transmittance ≈ 80%) for optical quantitation. This finding is significant because it shows the feasibility to directly 3D-print optical components for analytical applications. In addition, we created a novel microfluidic dialysis device via 3D printing, which enabled higher flow rates (for sampling with high temporal resolution) and increased extraction efficiency than commercially available ones. By coupling the microfluidic detector and dialysis probe, we successfully measured the release kinetics of indole from biofilms in a continuous, automated, and near real-time fashion. Indole is an intercellular signaling molecule in biofilms, which may regulate antibiotic resistance. The release kinetics of this molecule had not been quantitated likely because of the lack of a suitable analytical tool. Our results fill this knowledge gap.

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Section: Resultsmentioning

confidence: 99%

Section: The Detector Device That Allows For Direct Optical Measurementsmentioning

confidence: 99%

3D-Printed Microfluidic Devices for Enhanced Online Sampling and Direct Optical Measurements

et al. 2020

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“…The constants of these parameters, ε ∞ , ω D , γ D , L , and L have been demonstrated in Ref. [23], so that we can use it in the calculation process.…”

Section: Geometry Structure and Theoretical Methodsmentioning

confidence: 98%

A Tunable High-Sensitivity Refractive Index of Analyte Biosensor Based on Metal-Nanoscale Covered Photonic Crystal Fiber With Surface Plasmon Resonance

Zhang

2019

IEEE Photonics J.

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A tunable high-sensitivity gold-film covered photonic crystal fiber refractive index biosensor based on surface plasmon resonance is proposed. The finite element method is used to analyze and discuss the sensing performance of the biosensor to the analyte. The radio interference (RI) of the analyte is detected by flowing it though the outer fiber surface. The phase matching condition is satisfied between the fundamental mode and the surface plasmon polariton modes, whose resonance coupling can be achieved. The complete coupling and incomplete coupling are excited as the analyte RI increases, and the resonance strength of the complete coupling is stronger than that of the incomplete coupling. It can be proved by calculation that the resonance coupling for the fundamental mode and the fifth-, sixth-, or seventh-order SPP mode has been obtained at different wavelengths. However, the biosensor has obtained four ranges including the analyte RI from 1.

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“…For instance, Daniel et al employed the change in the elastomer refractive index and modes confined within the fiber core when PDMS was pressed, fabricating a locally pressed etched optical fiber with a PDMS coating for sensing applications [30]. Additionally, Jesus et al reported a compact and highly sensitive optical fiber temperature sensor based on the surface plasmon resonance effect, showing a linear response and a sensitivity of 2.6 nm/ • C [31]. Despite the high performance of the abovementioned sensors, a simple-to-fabricate, compact, hypersensitive, and multi-functional flexible optical fiber sensor remains a challenge for MNFs to some extent.…”

Section: Introductionmentioning

confidence: 99%

An Ultra-Sensitive Multi-Functional Optical Micro/Nanofiber Based on Stretchable Encapsulation

Xiang

You

Miao

et al. 2021

Sensors

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Stretchable optical fiber sensors (SOFSs), which are promising and ultra-sensitive next-generation sensors, have achieved prominent success in applications including health monitoring, robotics, and biological–electronic interfaces. Here, we report an ultra-sensitive multi-functional optical micro/nanofiber embedded with a flexible polydimethylsiloxane (PDMS) membrane, which is compatible with wearable optical sensors. Based on the effect of a strong evanescent field, the as-fabricated SOFS is highly sensitive to strain, achieving high sensitivity with a peak gauge factor of 450. In addition, considering the large negative thermo-optic coefficient of PDMS, temperature measurements in the range of 30 to 60 °C were realized, resulting in a 0.02 dBm/°C response. In addition, wide-range detection of humidity was demonstrated by a peak sensitivity of 0.5 dB/% RH, with less than 10% variation at each humidity stage. The robust sensing performance, together with the flexibility, enables the real-time monitoring of pulse, body temperature, and respiration. This as-fabricated SOFS provides significant potential for the practical application of wearable healthcare sensors.

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Surface Plasmon Resonance-Based Optical Fiber Embedded in PDMS for Temperature Sensing

Cited by 55 publications

References 15 publications

3D-Printed Microfluidic Devices for Enhanced Online Sampling and Direct Optical Measurements

3D-Printed Microfluidic Devices for Enhanced Online Sampling and Direct Optical Measurements

A Tunable High-Sensitivity Refractive Index of Analyte Biosensor Based on Metal-Nanoscale Covered Photonic Crystal Fiber With Surface Plasmon Resonance

An Ultra-Sensitive Multi-Functional Optical Micro/Nanofiber Based on Stretchable Encapsulation

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