Flexible and Wearable Photonic-Crystal Fiber Interferometer for Physiological Monitoring and Healthcare

Mishra, Pratik; Chatterjee, Kalipada; Kumar, Hemant; Jha, Rajan

doi:10.1021/acsaom.2c00137

Cited by 16 publications

(4 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The basic sensing mechanism of this reported sensor is to study the change of the effective refractive index around the recognizing region for selective binding of p -cresol molecules with the MIP-NP layer. Here, the SMF-PCF-SMF hetero-fiber configuration produces an interference spectrum and serves as an inline MZI . Within this fiber structure, the light initially launches and propagates through the SMF as a fundamental core mode.…”

Section: Sensing Mechanism and Working Principlementioning

confidence: 99%

“…Here, the SMF-PCF-SMF hetero-fiber configuration produces an interference spectrum and serves as an inline MZI. 30 Within this fiber structure, the light initially launches and propagates through the SMF as a fundamental core mode. However, the first collapse region (CR-1), formed for the splicing of the SMF and PCF, leads to the coupling of light with higher-order cladding modes.…”

Section: Sensing Mechanism and Working Principlementioning

confidence: 99%

See 1 more Smart Citation

Molecular Imprinting Polymer Nanoparticles Coupled with an Optical Sensor for Sensitive and Label-Free Detection of p-Cresol

Gorai

Mizuno

Kumar

et al. 2023

ACS Appl. Nano Mater.

Self Cite

View full text Add to dashboard Cite

Selective detection of toxic pollutants present in water has been a severe challenge to the scientific community for a long time. The noble integration of optical fiber-based interferometry with a bio-recognizing element molecular imprinting polymer (MIP) exhibits a promising technique for selective and susceptible biochemical detection. Here, we report a compact, stable, reproducible, and label-free optical sensor using a combined approach of photonic crystal fiber (PCF)-based modal interferometry and MIP nanoparticles (MIP-NPs) for selective detection of water pollutant p-cresol with an extremely low limit of detection (LOD). The MIP-NPs having a greater surface-to-volume aspect ratio allows more target analytes to bind. The sensor immobilized with MIP-NPs shows unprecedented sensitivity of 1.865 × 108 nm/M with specific and repeatable detection performance for a broad dynamic detection range of 10–8–10–3 M. The sensor offers a remarkable detection ability of as low as 1.55 nM concentrations of p-cresol in the aqueous medium, for water quality monitoring. Fast response, high resolution, compact size, label-free broad detection range, and selective reusable performance of the proposed sensor exhibit potential for board practical utilizations, including medical sectors, online and remote biosensing, and water resource monitoring.

show abstract

Section: Sensing Mechanism and Working Principlementioning

confidence: 99%

Section: Sensing Mechanism and Working Principlementioning

confidence: 99%

Molecular Imprinting Polymer Nanoparticles Coupled with an Optical Sensor for Sensitive and Label-Free Detection of p-Cresol

Gorai

Mizuno

Kumar

et al. 2023

ACS Appl. Nano Mater.

Self Cite

View full text Add to dashboard Cite

show abstract

“…[20][21][22] For monitoring these pulse waveforms and respiration rates, fiber based wearables are mostly reported. [8,11,[23][24][25][26] The main key factors of any wearable system are its flexibility and stretchability. To realize these aspects the embedding material properties and the probe's configurations are the main two key factors.…”

Section: Introductionmentioning

confidence: 99%

“…[ 20–22 ] For monitoring these pulse waveforms and respiration rates, fiber based wearables are mostly reported. [ 8,11,23–26 ]…”

Section: Introductionmentioning

confidence: 99%

Human Pulse and Respiration Monitoring: Reconfigurable and Scalable Balloon‐Shaped Fiber Wearables

Mishra

Sahu

Kumar

et al. 2023

Adv Materials Technologies

Self Cite

View full text Add to dashboard Cite

Wearable technologies have achieved tremendous success in medical‐grade human vital signal monitoring. Herein, a unique geometry (balloon shaped) and usage of very economical polymer embedded single mode fiber based modal interferometry that not only overcome the mechanical strength restrictions of most of the fiber wearables but also fulfil the two most important and necessary requirements of any wearable system: flexibility and stretchability are reported. Here, the human pulse rate and respiration rhythm are successfully monitored by placing the wearables at appropriate positions on different human subjects. The wearable system when compared with the other two commercial approaches: piezoelectric and Photoplethysmography shows better results in terms of pulse visibility. The wrist pulse detection by the proposed system shows 72 bpm and can distinguish different human pulse parameters such as main peak, tidal peak, dicrotic wave peak, and dicrotic notch. Further, three volunteers’ heart beat values obtained from the proposed system very well match with the commercial heart‐rate meter thereby showing the alternative and better approach for futuristic health monitoring wearable device.

show abstract

Optical Fiber‐Based Wearable Sensors for Remote Health Monitoring [Invited]

Zhang,

Singh,

Zhang

et al. 2024

Advanced Sensor Research

View full text Add to dashboard Cite

The wearable optical fiber sensors have demonstrated significant promise in the realm of health monitoring in recent times. These sensors utilize the flexibility and exceptional sensitivity of optical fibers to precisely measure many physiological aspects of the human body, including heart rate, breathing rate, mobility status, and body temperature. Optical fiber sensors usually have good biocompatibility and anti‐interference capabilities, can be integrated into flexible materials, and are suitable for long‐term wear. It can be integrated into clothing, patches, or accessories to provide continuous, real‐time health data monitoring, providing important support for personalized medicine and remote health management. This paper primarily presents the fundamental operating concept of wearable optical fiber sensors and their use in monitoring physiological signals across multiple domains. In conclusion, this paper provides a summary of the limitations and future prospects of wearable fiber sensors using optical fiber technology.

show abstract

Flexible and Wearable Photonic-Crystal Fiber Interferometer for Physiological Monitoring and Healthcare

Cited by 16 publications

References 49 publications

Molecular Imprinting Polymer Nanoparticles Coupled with an Optical Sensor for Sensitive and Label-Free Detection of p-Cresol

Molecular Imprinting Polymer Nanoparticles Coupled with an Optical Sensor for Sensitive and Label-Free Detection of p-Cresol

Human Pulse and Respiration Monitoring: Reconfigurable and Scalable Balloon‐Shaped Fiber Wearables

Optical Fiber‐Based Wearable Sensors for Remote Health Monitoring [Invited]

Contact Info

Product

Resources

About