Zainal Abidin Arsat
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Preferred name
Zainal Abidin Arsat
Official Name
Zainal Abidin, Arsat
Alternative Name
Arsat, Zainal Abidin
Main Affiliation
Scopus Author ID
56891731500
Researcher ID
EJS-9617-2022

Research Output

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  • Publication
    Arthropods-mediated green synthesis of Zinc oxide nanoparticles using cellar spider extract a biocompatible remediation for environmental approach
    ( 2024-06)
    Muzamir Isa
    ;
    Muhammad Nur Aiman Uda
    ;
    M. A. R. Irfan
    ;
    Uda Hashim
    ;
    Subash Chandra Bose Gopinath
    ;
    Hafiza Shukor
    ;
    MRM Huzaifah
    ;
    Maimunah Mohd Ali
    ;
    Nur Hulwani Ibrahim
    ;
    Muaz Mohd Zaini Makhtar
    ;
    Ng Qi Hwa
    ;
    Mohd Khairul Rabani Hashim
    ;
    Zainal Abidin Arsat
    ;
    Nor Azizah Parmin
    ;
    Liyana Ahmad Sofri
    ;
    Mahfuz Affif Mohd Ruslan
    ;
    Tijjani Adam
    This study presents an eco-friendly approach to synthesizing zinc oxide nanoparticles (ZnO NPs) using extracts from cellar spiders, addressing environmental and health concerns associated with conventional methods. The spider extract efficiently reduced zinc acetate dihydrate, and the synthesized ZnO NPs underwent comprehensive quantitative characterization, including size, shape, morphology, surface chemistry, thermal stability, and optical properties using Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), zeta potential measurements, thermogravimetric analysis (TGA), and UV-vis spectroscopy. The nanoparticles exhibited intended characteristics, and their adsorption capability for methylene blue (MB) was quantitatively assessed using the Freundlich isotherm model and pseudo-second-order kinetic model, providing numerical insights into MB removal efficiency. The study demonstrates the potential of these green-synthesized ZnO NPs for applications in environmental remediation, wastewater treatment, and antibacterial therapies, contributing to both sustainable nanomaterial development and quantitative understanding of their functional properties.
  • Publication
    Finite element analysis on solar mobile dryer for shrimp paste drying application
    ( 2023-01-01)
    Mohd Nasir N.A.
    ;
    Zainal Abidin Arsat
    ;
    Abdullah F.
    ;
    Muhammad Nur Aiman Uda
    ;
    Hashim M.K.R.
    ;
    Muhammad Firdaus Abdul Muttalib
    ;
    Kadarman A.H.
    ;
    Muhammad Nur Afnan Uda
    In the production of the shrimp paste, usually, the sun drying processing is not done hygienically. A small and mobile solar dyer could be used by the entrepreneurs to improve its wholesomely. This study aims to evaluate the simulation data analysis of the temperature contours resulting from the mobile solar dryer using Finite Element Analysis (FEA). This study was conducted in two different sets of ambient parameters; the outside and inside of the laboratory environments. On the FEA part, SolidWorks Software was used to analyze the heat transfer process inside the 3D models of the mobile solar dryer. The result suggested that the mobile solar dryer was able to maintain an average temperature of 34.2 °C and 60 % relative humidity by only harnessing 180 Watts from 3 bulbs and a 75-Watt industrial exhaust fan.
  • Publication
    Measurement of leaf chlorophyll content in Harumanis mango cultivated in a greenhouse using SPAD meter
    ( 2023-01-01)
    Ahmad N.A.
    ;
    Muhammad Firdaus Abdul Muttalib
    ;
    Muhammad Nur Aiman Uda
    ;
    Zainal Abidin Arsat
    ;
    Fadhilnor Abdullah
    ;
    Mohd Khairul Rabani Hashim
    ;
    Fathin Ayuni Azizan
    ;
    Jusoh M.F.
    ;
    Kamaruzaman S.R.S.
    ;
    Nordin A.A.
    The Soil and Vegetation Analysis Development (SPAD) value was correlated to the actual value of chlorophyll content in the Harumanis mango leaf using a developed regression model. Distribution of chlorophyll content in Harumanis mango leaves were mapped using Geospatial Analyst in the ArcGIS. Total chlorophyll content and SPAD value were well established with the polynomial regression model with coefficient of determination (R2) of 0.925. The results show that the measured SPAD value in the morning were comparable to those value made in the evening and the Harumanis leaves located in the middle of the greenhouse have 25–31.3% lower chlorophyll content compared to other parts of the greenhouse.
  • Publication
    Evaluation of MRI images' pixels intensity in three different MRI sequences
    ( 2020-06-17)
    Zainal Abidin Arsat
    ;
    Halim Kadarman A.
    ;
    Shokri A.A.
    ;
    Aziz M.E.
    ;
    Shuib S.
    Numerous types of Magnetic Resonance Imaging (MRI) sequence have been utilized for in vivo tibiofemoral contact area study has led inconsistency and disproportionate results. Thus, this study aim is to assess intensity differences of MRI images in three different MRI sequences. Ten healthy subjects with average age of 25.5 4.76 consisted three males and seven females have no history of knee injuries participated in this study. Subjects were scanned through an Achieva 3.0T TX coupled with a SENSE spine coil 15. The selected MRI sequences were Turbo Spin Echo (TSE), Fast Field Echo (FFE) and Steady State Free Precision (SSFP). The results showed that the SSFP sequence consistently uncovered extra contact areas than the FFE and TSE sequences. Overall intensity value indicated that the TSE sequence intersected the highest intensity differences at important knee tissue components: trabecular-cortical and cartilage-synovial. The study demonstrated that the TSE sequence yields an accurate contact length detection which promoted a consistent tibiofemoral contact area for quantification. Also, this study suggested that the TSE sequence is a proper MRI sequence selection for in vivo tibofemoral contact area study.
  • Publication
    Synthesis of zinc oxide nanoparticles via cellar spider extract for enhanced functional properties in antimicrobial activities
    ( 2024-06)
    Jasni Mohamed Ismail
    ;
    Muhammad Nur Aiman Uda
    ;
    M. A. R. Irfan
    ;
    Mohd Khairul Rabani Hashim
    ;
    Zainal Abidin Arsat
    ;
    Uda Hashim
    ;
    Hafiza Shukor
    ;
    M. N. Afnan Uda
    ;
    Lokman Hakim Ibrahim
    ;
    Shahidah Arina Shamsuddin
    ;
    Nor Azizah Parmin
    ;
    Muzamir Isa
    ;
    Mohamad Zaim Mohamad Zain
    ;
    R. A. Ilyas
    ;
    Tijjani Adam
    This study explores the green synthesis of zinc oxide nanoparticles (ZnO NPs) using cellar spider extracts as a sustainable alternative to traditional methods involving hazardous chemicals and radiation. The spider extracts effectively reduced zinc acetate dihydrate, yielding white precipitates indicative of ZnO NPs. Characterization through SEM revealed diverse morphologies, including spherical, rod-like, hexagonal, and uneven particles forming platelet-like aggregates. Further analyses, such as HPM, 3D nanoprofiler, and EDS, provided insights into size, shape, morphology, surface chemistry, thermal stability, and optical characteristics, quantifying the intended properties of the synthesized ZnO NPs. Antibacterial assays against E. coli and B. subtilis demonstrated significant antibacterial activity, affirming the nanoparticles' potential for antimicrobial applications. This green synthesis approach, validated through comprehensive characterization and quantitative measurements, offers a promising and environmentally friendly route for producing functional ZnO NPs.
  • Publication
    High flex femoral component with slanted pegs improves fixation strength of total knee arthroplasty
    ( 2023-01-01)
    Zainal Abidin Arsat
    ;
    Muhammad Nur Aiman Uda
    ;
    Fadhilnor Abdullah
    ;
    Mohd Khairul Rabani Hashim
    ;
    Mutallib M.F.A.
    ;
    Kadarman A.H.
    ;
    Ahmed Shokri A.
    ;
    Aziz M.E.
    ;
    Shuib S.
    High incidences of early aseptic loosening cases have led to numerous analyses on fixation strength of femoral component (FC). This study consists of two objectives: to analyze the correlation between articulating contact area shape conformities and fixation strength, and (2) to analyze the relationship between slanting box patterns of the FC and fixation strength. Two design analyses were constructed: first, using three different types of contact congruence with radius ratios of 0.50, 0.89 and flat. Second, box patterns of the FC were anteriorly slanted at 2, 4 and 6°. The fixation strength of the FC is significantly improved (38.59%) by slanting the box pattern anteriorly as compared to the non-slanted FC design.
  • Publication
    Revisiting the optoelectronic properties of graphene : a DFT approach
    ( 2024-01)
    L.O Agbolade
    ;
    Alaa Kamal Yousif Dafhalla
    ;
    A.Wesam Al-Mufti
    ;
    Zainal Abidin Arsat
    ;
    Tijjani Adam
    ;
    Abdullah Chik
    ;
    Subash Chandra Bose Gopinath
    ;
    Muhammad Nur Aiman Uda
    ;
    Uda Hashim
    Understanding the atomic behaviour of pure graphene is crucial in manipulating its properties for achieving optoelectronics with high absorption indexes and efficiencies. However, previous research employing the DFT approach emphasised its zero-band gap nature, not its unique optical properties. Therefore, this study employed ab initio calculations to revisit the electronic, magnetic, and optical properties of pristine graphene using the WIEN2K code. The results reveal that the PBE-GGA valence and conduction bands cross at -0.7 eV. Our calculations demonstrated that the absorption coefficient of graphene has the strongest light penetration in the parallel direction. Furthermore, our results not only present the best possible propagation of light in pure graphene but also reveal that the linear relationship between the formation of the free electron carriers and the energy absorption is responsible for the high optical conductivity observed in pure graphene, as indicated by the peaks. Lastly, the metallic properties of graphene are reflected by the variation in spin up and down that appears, as evidenced by the total and partial densities of states, and the large refractive index attributed to its high electron mobility confirms its metallic nature.
  • Publication
    Arthropods-mediated Green Synthesis of Zinc Oxide Nanoparticles using Cellar Spider Extract: A Biocompatible Remediation for Environmental Approach
    ( 2024-06-12)
    Muzamir Isa
    ;
    Muhammad Nur Aiman Uda
    ;
    Irfan M.A.R.
    ;
    Uda Hashim
    ;
    Subash Chandra Bose Gopinath
    ;
    Hafiza Shukor
    ;
    Afnan Uda M.N.
    ;
    Huzaifah M.R.M.
    ;
    Ali M.M.
    ;
    Ibrahim N.H.
    ;
    Makhtar M.M.Z.
    ;
    Ng Q.H.
    ;
    Mohd Khairul Rabani Hashim
    ;
    Zainal Abidin Arsat
    ;
    Nor Azizah Parmin
    ;
    Liyana Ahmad Sofri
    ;
    Ruslan M.A.M.
    ;
    Tijjani Adam
    This study presents an eco-friendly approach to synthesizing zinc oxide nanoparticles (ZnO NPs) using extracts from cellar spiders, addressing environmental and health concerns associated with conventional methods. The spider extract efficiently reduced zinc acetate dihydrate, and the synthesized ZnO NPs underwent comprehensive quantitative characterization, including size, shape, morphology, surface chemistry, thermal stability, and optical properties using Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), zeta potential measurements, thermogravimetric analysis (TGA), and UV-vis spectroscopy. The nanoparticles exhibited intended characteristics, and their adsorption capability for methylene blue (MB) was quantitatively assessed using the Freundlich isotherm model and pseudo-second-order kinetic model, providing numerical insights into MB removal efficiency. The study demonstrates the potential of these green-synthesized ZnO NPs for applications in environmental remediation, wastewater treatment, and antibacterial therapies, contributing to both sustainable nanomaterial development and quantitative understanding of their functional properties.
      3  1
  • Publication
    Synthesis of Zinc Oxide Nanoparticles via Cellar Spider Extract for Enhanced Functional Properties in Antimicrobial Activities
    ( 2024-06-12)
    Jasni Mohamed Ismail
    ;
    Muhammad Nur Aiman Uda
    ;
    Irfan Abd Rahim
    ;
    Mohd Khairul Rabani Hashim
    ;
    Zainal Abidin Arsat
    ;
    Uda Hashim
    ;
    Hafiza Shukor
    ;
    Afnan Uda M.N.
    ;
    Ibrahim N.H.
    ;
    Shahidah Arina Shamsuddin
    ;
    Nor Azizah Parmin
    ;
    Muzamir Isa
    ;
    Zain M.Z.M.
    ;
    Ilyas R.A.
    ;
    Tijjani Adam
    This study explores the green synthesis of zinc oxide nanoparticles (ZnO NPs) using cellar spider extracts as a sustainable alternative to traditional methods involving hazardous chemicals and radiation. The spider extracts effectively reduced zinc acetate dihydrate, yielding white precipitates indicative of ZnO NPs. Characterization through SEM revealed diverse morphologies, including spherical, rod-like, hexagonal, and uneven particles forming platelet-like aggregates. Further analyses, such as HPM, 3D nanoprofiler, and EDS, provided insights into size, shape, morphology, surface chemistry, thermal stability, and optical characteristics, quantifying the intended properties of the synthesized ZnO NPs. Antibacterial assays against E. coli and B. subtilis demonstrated significant antibacterial activity, affirming the nanoparticles' potential for antimicrobial applications. This green synthesis approach, validated through comprehensive characterization and quantitative measurements, offers a promising and environmentally friendly route for producing functional ZnO NPs.
      4
  • Publication
    Use of Drone Flight Simulator for Bridging Theories of UAV Systems into Practice: A Pilot Study
    ( 2024-01-01)
    Mahyuddin Arsat
    ;
    Ahmad Nabil Md Nasir
    ;
    Lukman Hakim Ismail
    ;
    Muhammad Khair Noordin
    ;
    Adibah Abdul Latif
    ;
    Zainal Abidin Arsat
    ;
    Khairul Mirza Rosli
    Unmanned aerial vehicles (UAVs) are used in a variety of industries for a wide range of purposes. The UAV industry in Malaysia is experiencing an increase in demand for qualified workers, which has prompted Technical and Vocational Education and Training (TVET) institutions to introduce certification programs. These programs often rely on actual UAVs for training, which can be costly, restrict possibilities for hands-on practice, and present safety issues. Therefore, drone simulators have emerged as a learning tool to address the issue, recreating real-world operational environments for virtual pilot training and interaction. In order to comprehend participants’ understanding with learning through drone simulators, a qualitative research approach was adopted in this study. The researchers used an Unmanned Aerial Vehicle Technology Laboratory course as a pilot study to evaluate how students developed their understanding of flying principles while using UAV simulators. Semi-structured interviews were selected. A purposive sampling strategy was used to identify individuals who had completed the drone simulator sessions. Individual interviews were carried out to delve deeper into the experiences of the individuals. The findings of the study reveal three main categories: self-awareness, contextual understanding, and evaluating the effectiveness of practice. Self-awareness refers to students’ ability to reflect on their learning process and recognize how their theoretical understanding informs their practical application. Contextual understanding relates to students’ capacity to apply theoretical concepts within specific contexts. Evaluating the effectiveness of practice involves students critically assessing their own practice and identifying areas for improvement.
      1