Wan Maisarah Mukhtar
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View article: Recent Progress in Plasmonic Assisted Fiber Bragg Grating Sensor for Food Security Applications
Recent Progress in Plasmonic Assisted Fiber Bragg Grating Sensor for Food Security Applications Open
Food security and related environmental safety issues have become a central concern all over the world with the globalised trade of food commodities. Consumer awareness arises regarding the foodborne pathogens and other toxic substances, s…
View article: Ethanol Vapour Sensing Based on TiO<sub>2</sub> Coated Fiber Optic
Ethanol Vapour Sensing Based on TiO<sub>2</sub> Coated Fiber Optic Open
TiO 2 coated plastic optical fiber is developed for ethanol vapour detection. The detection based on intensity modulated evanescent wave fiber optic sensors. The cladding of POF fiber is etched by using acetone and distilled water. TiO 2 s…
View article: Au/Go Based Partially Uncladded SMF for Detection of Glucose Concentration
Au/Go Based Partially Uncladded SMF for Detection of Glucose Concentration Open
The determination of glucose concentrations in the blood and urine were important to monitor the health of human being. This study was carried out to study the effect GO thicknesses in enhancing the sensitivity of the Au/GO sensor for dete…
View article: IoT-Integrated Smart Gardening System for Real-Time Monitoring and User-Controlled with Smart Film
IoT-Integrated Smart Gardening System for Real-Time Monitoring and User-Controlled with Smart Film Open
Internet of things (IoT) refers to devices connected to the internet that enable human-to-human or human-to-computer communication. It facilitates the collection and exchange of data between these devices and users. This study presents an …
View article: Zinc oxide-coated fiber-optic sensors for monitoring of edible oil adulteration with internet of things integration
Zinc oxide-coated fiber-optic sensors for monitoring of edible oil adulteration with internet of things integration Open
The study proposes a novel approach for detecting adulteration in edible oils utilising a zinc oxide (ZnO)-coated optical sensor. The procedure included the development of a sensor probe using a plastic optical fiber (POF) with a ZnO nanol…
View article: AuNPs/GO Coated U-Shape Polished SMF Based Localized SPR Sensor for Musta’mal Water Identification
AuNPs/GO Coated U-Shape Polished SMF Based Localized SPR Sensor for Musta’mal Water Identification Open
Potential of hybrid gold nanoparticles/graphene oxide (AuNPs/GO) coated single mode fiber (SMF) sensor by exploiting localized surface plasmon resonance (LSPR) effect for Musta’mal water identification was studied. Three structure shapes o…
View article: Plastic Optical Fiber pH Sensor Based on Sol-Gel Film
Plastic Optical Fiber pH Sensor Based on Sol-Gel Film Open
A plastic optical fiber (POF) pH sensor is developed based on a sol-gel film. A sol-gel film was prepared by mixing tetramethyl orthosilicate (TMOS), trimethoxymethylsilane (MTMS), ethanol, distilled water and Neutral Red (NR) powder. Then…
View article: Sensitivity Optimization of Au/Ti Based-SPR Sensor by Controlling Light Incident Wavelength for Gas Sensing Application
Sensitivity Optimization of Au/Ti Based-SPR Sensor by Controlling Light Incident Wavelength for Gas Sensing Application Open
Exposure to harmful gases may cause health problems like bone marrow deficiency, which eventually drops the number of red blood cells, causing anemia and many other dangerous diseases. This work was carried out to study the potential devel…
View article: Identification of Recycled Cooking Oil by Varying Number of Au/GO Coated Fiber Optic’s Loop Ring
Identification of Recycled Cooking Oil by Varying Number of Au/GO Coated Fiber Optic’s Loop Ring Open
This study investigates the effect gold nanoparticles (Au)/graphene oxide (GO) coated fibre optics with various number of loop ring in identifying recycled cooking oil based on their frying time. Various layers of gold nanoparticles (AuNP)…
View article: Sensitivity Analyses of Cu/Chitosan and Ag/Chitosan Based SPR Biosensor for Glucose Detection
Sensitivity Analyses of Cu/Chitosan and Ag/Chitosan Based SPR Biosensor for Glucose Detection Open
This study investigates the sensitivity performance between hybrid thin films of Copper (Cu)/Chitosan and silver (Ag)/Chitosan for glucose biosensing applications. Ag and Cu with refractive indices of n=0.1351+3.9853k and n=0.2388+3.4156k …
View article: Real time detection of milk’s spoilage using Au/GO bend SMF sensor based on localized surface plasmon resonance effect
Real time detection of milk’s spoilage using Au/GO bend SMF sensor based on localized surface plasmon resonance effect Open
Potential of hybrid gold nanoparticles/Graphene Oxide (Au/GO) coated single mode fiber (SMF) sensor by exploiting localized surface plasmon resonance (LSPR) effect for detection of spoiled milk is studied. Various diameters of SMF’s claddi…
View article: Study on the Sensitivity of Bare Fiber Bragg Grating for Ultrasonic Frequencies Response Under Various Temperature
Study on the Sensitivity of Bare Fiber Bragg Grating for Ultrasonic Frequencies Response Under Various Temperature Open
This work presents a study on the sensitivity of bare fiber Bragg grating (FBG) to detect ultrasonic frequencies under various temperature. Two infrared (IR) laser with excitation wavelength, λ=1310nm and λ=1550nm were employed. Various ty…
View article: Hybrid U-shaped-microbend SMF evanescent wave sensor for river water quality assessment: a preliminary study / Amirul Hazim Kamarulzaman and Wan Maisarah Mukhtar
Hybrid U-shaped-microbend SMF evanescent wave sensor for river water quality assessment: a preliminary study / Amirul Hazim Kamarulzaman and Wan Maisarah Mukhtar Open
A hybrid U-shaped-microbend fiber optic evanescent wave sensor was developed by combining two types of bending structures on the optical communication single mode optical fiber (SMF28). To study the effect optical microbending on the outpu…
View article: E-coli identification using Kretschmann-based Ag/GO nanocomposites plasmonic sensor
E-coli identification using Kretschmann-based Ag/GO nanocomposites plasmonic sensor Open
A low cost and highly efficient surface plasmon resonance (SPR) sensor for e-coli detection was developed by employing Kretschmann prism coupling technique. Silver thin film and graphene oxide were deposited on top of hypotenuse side of pr…
View article: Uric acid detection by using contactless intensity modulation based displacement sensor
Uric acid detection by using contactless intensity modulation based displacement sensor Open
A simple and contactless intensity modulated displacement sensor is proposed and demonstrated for sensing uric acid concentration. For a concentration change of uric acid from 0 ppm to 500 ppm, two peak voltages are obtained from the displ…
View article: Identification of Near-Field and Far-Field Using Confocal Microscopy Setup for Optical Sensing Applications
Identification of Near-Field and Far-Field Using Confocal Microscopy Setup for Optical Sensing Applications Open
The presence of near-field indicates the existence of evanescent waves, which is one of the important requirements for the development of an optical sensor. This study was carried out to identify the presence of near-field and far-field as…
View article: Study on plasmon absorption of hybrid Au-GO-GNP films for SPR sensing application
Study on plasmon absorption of hybrid Au-GO-GNP films for SPR sensing application Open
This study proposed the development of hybrid Au-GO-GNP films for the enhancement of plasmon absorption in SPR sensing. Several thicknesses of Au at t=40nm, t=50nm and t=300nm were sputtered on the glass substrate. The hybridization of bil…
View article: Influence of annealing temperature on optical properties of Al doped ZnO nanoparticles via sol-gel methods
Influence of annealing temperature on optical properties of Al doped ZnO nanoparticles via sol-gel methods Open
Zinc oxide (ZnO) thin films have become technologically important materials due to their wide range of electrical and optical properties. The characteristics can be further adjusted by adequate doping processes. The effect of dopant concen…
View article: SPR sensor for detection of heavy metal ions: Manipulating the EM waves polarization modes
SPR sensor for detection of heavy metal ions: Manipulating the EM waves polarization modes Open
Water contamination by heavy metals is a common issue encountered in many countries due to industrial and urban wastes in water resources which give health and socio-economic impacts. This work is carried out to investigate the effect of E…
View article: Chemical tapering of polymer optical fiber
Chemical tapering of polymer optical fiber Open
\nPolymer optical fibers (POFs) have significant advantages over numerous sensing applications. The key element in developing sensor is by removing the cladding of the fiber. The use of organic solvent is one of the methods to create taper…
View article: Influence of electromagnetic (EM) waves polarization modes on surface plasmon resonance
Influence of electromagnetic (EM) waves polarization modes on surface plasmon resonance Open
\nOptical sensor based on surface plasmon resonance are widely used for various applications. In this paper, an optimization of EM waves polarization modes for the occurrence of SPR by using a modified optical waveguiding assembly has been…
View article: Synthesis methods of gold nanoparticles for Localized Surface Plasmon Resonance (LSPR) sensor applications
Synthesis methods of gold nanoparticles for Localized Surface Plasmon Resonance (LSPR) sensor applications Open
Gold nanoparticles (GNPs) have been known as an excellent characteristic for Local Surface Plasmon Resonance (LSPR) sensors due to their sensitive spectral response to the local environment of the nanoparticle surface and ease of monitorin…
View article: Optimization of SPR signals: Monitoring the physical structures and refractive indices of prisms
Optimization of SPR signals: Monitoring the physical structures and refractive indices of prisms Open
Surface plasmon resonance (SPR) can only be achieved if sufficient energy is provided at the boundary between metal and dielectric. An employment of prism as a light coupler by using Kretschmann configuration is one of the alternative for …