All Outputs (39)

Highly sensitive optical fibre Bragg grating contact pressure sensor embedded in a polymer layer: modelling and experimental validation (2024)
Journal Article

This paper discusses mathematical modelling and experimental validation of a highly sensitive optical fibre Bragg grating (FBG) contact pressure sensor developed for healthcare applications. Bare FBGs are not very sensitive to pressure (~ 3x10-3 nm/M... Read More about Highly sensitive optical fibre Bragg grating contact pressure sensor embedded in a polymer layer: modelling and experimental validation.

Long Period Grating Mach–Zehnder Interferometer Based Immunosensor with Temperature and Bulk Refractive Index Compensation (2022)
Journal Article

A long period grating Mach–Zehnder interferometer (LPGMZI) that consists of two identical long period gratings (LPGs) in a single fibre was developed to measure immunoglobulin M (IgM). The measured spectrum has fringes due to the interference between... Read More about Long Period Grating Mach–Zehnder Interferometer Based Immunosensor with Temperature and Bulk Refractive Index Compensation.

U-shape functionalized optical fibre sensors for measurement of anaesthetic propofol (2022)
Journal Article

Propofol is used widely for intravenous anaesthesia during surgery and sedation in critical care. There is no method currently to assay the concentration of propofol in plasma in real time. The ability to do so would significantly improve patient saf... Read More about U-shape functionalized optical fibre sensors for measurement of anaesthetic propofol.

Fibre Bragg Grating Based Interface Pressure Sensor for Compression Therapy (2022)
Journal Article

Compression therapy is widely used as the gold standard for management of chronic venous insufficiency and venous leg ulcers, and the amount of pressure applied during the compression therapy is crucial in supporting healing. A fibre optic pressure s... Read More about Fibre Bragg Grating Based Interface Pressure Sensor for Compression Therapy.

Intra-tracheal multiplexed sensing of contact pressure and perfusion (2021)
Journal Article

Incorrect endotracheal tube (ETT) cuff inflation pressure causes significant problems for intubated patients. The technical development and first in vivo use of a smart ETT for measurements at the cuff-trachea interface during mechanical ventilation... Read More about Intra-tracheal multiplexed sensing of contact pressure and perfusion.

Localised plasmonic hybridisation mode optical fibre sensing of relative humidity (2021)
Journal Article

This work reports an optical fibre probe functionalised with ‘cotton-shaped’ gold-silica nanostructures for relative humidity (RH) monitoring. The sensor response utilises the localised surface plasmon resonance (LSPR) of self-assembled nanostructure... Read More about Localised plasmonic hybridisation mode optical fibre sensing of relative humidity.

A single-film fiber optical sensor for simultaneous measurement of carbon dioxide and relative humidity (2021)
Journal Article

Colorimetric measurement is a versatile, low-cost method for bio-/chemical sensing and that has importance in biomedical applications. General carbon dioxide (CO2) sensors based on colorimetric change of a pH indicator report only one parameter at a... Read More about A single-film fiber optical sensor for simultaneous measurement of carbon dioxide and relative humidity.

Fabrication of Humidity-Resistant Optical Fiber Sensor for Ammonia Sensing Using Diazo Resin-Photocrosslinked Films with a Porphyrin-Polystyrene Binary Mixture (2021)
Journal Article

Ammonia gas sensors were fabricated via layer-by-layer (LbL) deposition of diazo resin (DAR) and a binary mixture of tetrakis(4-sulfophenyl)porphine (TSPP) and poly(styrene sulfonate) (PSS) onto the core of a multimode U-bent optical fiber. The penet... Read More about Fabrication of Humidity-Resistant Optical Fiber Sensor for Ammonia Sensing Using Diazo Resin-Photocrosslinked Films with a Porphyrin-Polystyrene Binary Mixture.

Optical Fibre Sensor for Capillary Refill Time and Contact Pressure Measurements under the Foot (2021)
Journal Article

Capillary refill time (CRT) refers to the time taken for body tissue to regain its colour after an applied blanching pressure is released. Usually, pressure is manually applied and not measured. Upon release of pressure, simple mental counting is typ... Read More about Optical Fibre Sensor for Capillary Refill Time and Contact Pressure Measurements under the Foot.

Optical fibre Sensor for Simultaneous Temperature and Relative Humidity Measurement: Towards Absolute Humidity Evaluation (2021)
Journal Article

Temperature and humidity are essential parameters in monitoring the health of patients in critical care. An optical fibre sensor has been developed for simultaneous measurement of relative humidity (RH) and temperature at a single optical fibre tip b... Read More about Optical fibre Sensor for Simultaneous Temperature and Relative Humidity Measurement: Towards Absolute Humidity Evaluation.

Chemically functionalised suspended-core fibre for ammonia gas detection (2021)
Journal Article

An optical fibre ammonia gas sensor utilising a functionalised four-leaf-clover-shaped suspended-core fibre (SCF) is demonstrated. The fibre is functionalised by depositing a thin layer of an ammonia sensitive dye (tetraphenylporphyrin tetrasulfonic... Read More about Chemically functionalised suspended-core fibre for ammonia gas detection.

Centrifuge application of fibre Bragg gratings: pile axial loads and wall bending moments (2021)
Journal Article

One challenge for geotechnical centrifuge testing of soil-structure interaction problems is the reliable measurement of induced structural strains/forces. This paper presents a novel application of fibre Bragg grating (FBG) sensors for strain measure... Read More about Centrifuge application of fibre Bragg gratings: pile axial loads and wall bending moments.

Carboxyl-fentanyl detection using optical fibre grating-based sensors functionalised with molecularly imprinted nanoparticles (2021)
Journal Article

Butyrylfentanyl is a new designer drug reported with growing use and related deaths. Routine toxicological analyses of this novel synthetic opioid drug have not been established yet. This work reports a fibre optic sensor that measures carboxyl-fenta... Read More about Carboxyl-fentanyl detection using optical fibre grating-based sensors functionalised with molecularly imprinted nanoparticles.

Development and validation of a novel fibre-optic respiratory rate sensor (FiRRS) integrated in oxygen delivery devices (2021)
Journal Article

© 2021 The Author(s). Respiratory rate (RR) monitoring provides crucial information on the overall health condition of patients and a reliable, low cost RR monitor for normal hospital inpatient or home use would be of significant benefit. The propose... Read More about Development and validation of a novel fibre-optic respiratory rate sensor (FiRRS) integrated in oxygen delivery devices.

A Textile Sleeve for Monitoring Oxygen Saturation Using Multichannel Optical Fibre Photoplethysmography (2020)
Journal Article

Textile-based systems are an attractive prospect for wearable technology as they can provide monitoring of key physiological parameters in a comfortable and unobtrusive form. A novel system based on multichannel optical fibre sensor probes integrated... Read More about A Textile Sleeve for Monitoring Oxygen Saturation Using Multichannel Optical Fibre Photoplethysmography.

A U-Shape Fibre-Optic pH Sensor Based on Hydrogen Bonding of Ethyl Cellulose with a Sol-Gel Matrix (2020)
Journal Article

© 1983-2012 IEEE. Development of a biocompatible pH sensor is of importance in biomedical applications, particularly for in vivo measurement, providing necessary information for clinical diagnosis and treatment such as chronic wounds and foetal acido... Read More about A U-Shape Fibre-Optic pH Sensor Based on Hydrogen Bonding of Ethyl Cellulose with a Sol-Gel Matrix.

Real-Time Humidity Measurement during Sports Activity using Optical Fibre Sensing (2020)
Journal Article

An optical fibre sensor for monitoring relative humidity (RH) changes during exercise is demonstrated. The humidity sensor comprises a tip coating of poly (allylamine hydrochloride) (PAH)/silica nanoparticles (SiO2 NPs) deposited using the layer-by-l... Read More about Real-Time Humidity Measurement during Sports Activity using Optical Fibre Sensing.

Optical fibre sensor for simultaneous measurement of capillary refill time and contact pressure (2020)
Journal Article

© 2020 by the authors. Licensee MDPI, Basel, Switzerland. The widely applied capillary refill time (CRT) measurement is currently performed by manually applying pressure and using a stopwatch to record the time taken for the skin to recover its norma... Read More about Optical fibre sensor for simultaneous measurement of capillary refill time and contact pressure.

Real time monitoring of biofilm formation on coated medical devices for the reduction and interception of bacterial infections (2020)
Journal Article

Real time monitoring of bacterial attachment to medical devices provides opportunities to detect early biofilm formation and instigate appropriate interventions before infection develops. This study utilises long period grating (LPG) optical fibre se... Read More about Real time monitoring of biofilm formation on coated medical devices for the reduction and interception of bacterial infections.

Multi-parameter optical fibre sensing of gaseous ammonia and carbon dioxide (2019)
Journal Article

Ammonia (NH3) and carbon dioxide (CO2) are important breath biomarkers for diagnosis of renal and respiratory diseases. Simultaneous sensing of the two gases is useful for assessment of Helicobacter Pylori infection. This study introduces a multi-par... Read More about Multi-parameter optical fibre sensing of gaseous ammonia and carbon dioxide.