Mohammad Taufiq Mustaffa
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Preferred name
Mohammad Taufiq Mustaffa
Official Name
Mohammad Taufiq , Mustaffa
Alternative Name
Taufiq, Mustaffa Mohammad
Mustaffa, M. T.
Main Affiliation
Scopus Author ID
55356046500

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A study on contraction of pneumatic artificial muscle (PAM) for load-lifting

2017-10-29 , Najmuddin W. , Mohammad Taufiq Mustaffa

Pneumatic Artificial Muscles (PAMs) have been known for its wide application in various aspects of industrial automation and robotic equipments. Many advantages in terms of high power-to-volume ratio, high power-to-weight ratio, stick-slip-free operation and high degree of safety offer by PAM compare to traditional actuators. However, behind this benefits lie a limitation of significant compatibility of PAM mechanism which have to be considered so as to fully understand how the PAM works during load-lifting. In this study, the mesh suitability experiment and the effect of force load on PAM contraction experiment have been carried out. PAM is constructed and compatibility of bladder and the braided mesh to produce uniform expansion is investigated. Moreover, the first experimental result of finding compatibility is used to verify the contraction value under various loads.

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Design of a drag and lift type blade for power generation via air turbine

2021-01-01 , Najmuddin W.S.W.A. , Mohammad Taufiq Mustaffa , Muhamad Saifuldin Abdul Manan , Ahmad Faizal Annuar , Atikah Haji Awang @ Haji Mohd Ramli

Compressed air is a vital medium for transferring energy in industrial processes. Compressors are efficient and reliable in meeting need and demand, especially in the industry while at the same time helping to reduce carbon footprint. However, there are several constraints using an air turbine as an operational element in generating electricity from compressed air. One of the key factors involved is the design of a blade that capable to increase the performance of the turbine and electricity generation from compressed air. Thus, this paper objectives are to develop a proposed design of a drag and lift type blade design and to evaluate the power generate that able to be harnessed from the force of the air. Additionally, the power coefficient that is harnessed from the generator using these new designs of blade also evaluated. In the experiment, the model is set up using the proposed concept of Savonius and Darrieus typed in order to generate electricity for small power equipment. Results show that these blade designs able to generate of 21-v for Savonius whereas 24-v for Darrieus from 0.3 MPa input source. Based on the result of an experiment, this study reveals that both type of blade design able to generate electricity constantly however, the performance of Darrieus vertical axis blade design is better compared to Savonius vertical axis blade design.

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Study on the effect of atmospheric plasma processing using gas mixture on 3C-SiC

2017-03-30 , Zulaika Abdullah , Siti Khadijah Za'aba , Nashrul Fazli Mohd Nasir , Mohammad Taufiq Mustaffa , Mayvinne Arcena , Ammar Zakaria

Atmospheric plasma processing are widely used for improving surfaces properties. Cubic silicon carbide (3C-SiC) is one of the material used as biosensor for their biocompatibility properties. In this work, we present the results of atmospheric plasma processing treatments using gas mixture on 3C-SiC surface. The 3C-SiC samples were treated at different duration and flow rate. Helium/Nitrogen and Argon/Nitrogen gas mixtures were used as plasma treatments and its effect on the surface was investigated. A significant increment of surface wettability were observed after plasma exposition. Investigation by surface morphological measurements was performed by using Atomic Force Microscopy (AFM) and Scanning Electron Microscopy (SEM). Contact angle measurement results showed a decreased in contact angle with increasing of treatment time and flow rate, and Argon/Nitrogen mixture promote more wettability compared to Helium/Nitrogen mixture.

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Microplasma effect on skin scaffold for melanoma cancer treatment

2017-03-30 , Zulaika Abdullah , Siti Khadijah Za'aba , Mohammad Taufiq Mustaffa , Che Wan Sharifah Robiah Mohamad , Ammar Zakaria

An atmospheric plasma system using Helium gas was developed. The effect of helium plasma treatment on skin scaffold surface was studied by scanning electron microscopy (SEM). The changes of skin scaffold surfaces before and after helium plasma treatment was recorded. The surface of skin scaffold changed with the prolonged of helium plasma treatment time. The depth of helium plasma penetration was studied using methylene blue dye staining method. The methylene blue will detect the presence or absence of an oxygen that was induced from plasma excitation. The presence of the oxygen indicated on the depth of helium plasma penetration. Results showed plasma are able to penetrate 4mm of skin scaffold after 1200 seconds of exposure.

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A Study on the effectiveness of atmospheric air plasma in sterilization on indium tin oxide

2024-12 , Siti Khadijah Za'aba , Mohammad Taufiq Mustaffa , Nurzahira Ahmad Zabidi

Atmospheric air plasma is a cold plasma and its application is enhanced nowadays as an alternative to a sterile surface that cannot withstand high temperatures and chemical material. For instance, the consumption of smartphones among health workers in hospitals was said to be a cause that can spread pathogens to patients widely in the wards. Moreover, the smartphone consists of components that are sensitive to high temperatures and chemical materials that would give corrosion effects. The aims are to investigate the surface changes of indium tin oxide (ITO) after exposure to air plasma and to investigate the effectiveness of atmospheric air plasma by inactivating Escherichia coli (E-coli). The morphological test was conducted to study the surface changes of ITO using SEM. The microbiological test was conducted to examine the validity of the atmospheric air plasma in inactivating E-coli. The result revealed that 24V, 1L/min, 1.0mm copper thickness was capable of inactivating E-coli within 30 s without changing the ITO surface. However, more studies still need to be conducted in the future work for improving and get an accurate result in air plasma set-up for sterilization.

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Induction of Apoptosis of Melanoma Skin Cancer Cells by Atmospheric Plasma Jet

2023-01-01 , Abdullah Z. , Siti Khadijah Za'aba , Mohammad Taufiq Mustaffa , Saidin N.A. , Johan Ariff Mohtar

The apoptotic effect is an important issue in cancer treatment. To achieve this goal, an atmospheric plasma jet (APJ) was set up for use on cultured cells in a temperature-controlled environment. Melanoma skin cancer and normal skin cells were targeted with this device. Following a 5 s plasma exposure, there was a 67% cell death in melanoma skin cancer cells compared with 5% in normal skin cells as measured after 24 h. When the treatment time was increased to 15, a 98% cell death was reported for melanoma skin cancer cells, which was 80% greater than the cell death in normal skin cells. Our observations further indicate that this preferential cell death is largely due to apoptosis. It shows that an APJ is a selective device in the induction of apoptosis in cancer and normal cells. APJ was shown to affect cells directly and indirectly through a plasma-activated medium (PAM). In direct treatment, cells were exposed to plasma while suspended in a culture medium, and in indirect treatment, cells were added to a culture medium previously acti-vated by plasma treatment. PAM was able to induce cell death 29% higher than direct treatment as measured after 48 h. The depth of the growth medium is also one of the factors in the induction of apoptosis of cancer cells. The growth medium protected the cells from plasma exposure. The result shows that the low level (0 mm) of growth medium will cause more cell death as compared with the high level (2 mm) of growth medium. Apoptotic behavior of skin cancer cells was de-duced from the fact that treated cells initially grew and died 12 h following the treatment, while untreated cells continued to grow and proliferate.

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Feasibility study of wave energy converter using compressed air to generate electricity

2021-01-01 , Najmuddin W.S.W.A. , Mohammad Taufiq Mustaffa , Muhamad Saifuldin Abdul Manan , Ahmad Faizal Annuar , Atikah Haji Awang @ Haji Mohd Ramli , Azzeri M.N.

Wave energy is one of the promising resources for harnessing a vast amount of renewable energy. Wave energy converter is being defined by a particular design and the power take-off system which signify the mechanism of absorbing the wave energy and convert it into electricity. Addressing the significant potential of wave energy, the wave converter using a pneumatic system and compressed air as energy storage is designed and fabricated. The concept is presented and tested in the wave maker to analyze the performance of the prototype. This project aims to study the capabilities of small-scale, low cost and portable wave energy converter using compressed air to generate power. In this project, an experiment is conducted using the force of wave to generate linear motion of double acting cylinder that specifically creates compressed air in a small-scale tank. From the experiment, it is observed that the wave energy able to compressed air at pressure up to 0.5 bar. Then, the compressed air which is stored in the storage tank is released and it flows through water turbine that works as a generator to produce a power output of 18 V. The feasibility study reveals that the experiment able to harness electricity using low equipment tool. Further improvement of the design can increase the efficiency of the pneumatic generated system and able to generate an electric power.

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Review on the development of plasma discharge in liquid solution

2017-03-30 , Nur Arina Hasmimi Ramli , Siti Khadijah Za'aba , Mohammad Taufiq Mustaffa , Ammar Zakaria , Shahriman Abu Bakar

Review papers on the basic principles and applications of plasma discharge in liquid have been reported. However, the development of plasma discharge in liquid is not widely reviewed. The aim of this paper is to review on the elements involved in developing plasma discharge in liquid. An overview will be given of the various types of existing power source, working gas, dielectric barrier, electrode material used to produce plasma, and reactive species production inside plasma discharge.

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Review on prevention of bacterial adhesion on contact lens using plasma treatment

2017-03-30 , Nur Arina Hasmimi Ramli , Siti Khadijah Za'aba , Mohammad Taufiq Mustaffa , Ammar Zakaria , Shahriman Abu Bakar

Many researches had been conducted to enhance the properties of contact lens. Most of the research conducted discussed on the factors that affect the adhesion process to contact lenses, rate of contact lens contamination, and type of microbe that adhere on the contact lens surface and contact lens casing. Studies on the proposed strategies or technology that can be used to slower down the formation of bacteria on contact lens are being explored. New technologies or strategies to prevent or slow down the adhesion of bacteria on contact lens have become a priority in this area. This review paper covers two main aspects, namely factor that affect the bacteria adhesion on contact lens and also the introduction of plasma treatment as a potential method for contact lens treatment.

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Preliminary analysis of the degradation of methylene blue by using plasma discharge in liquid

2018-11 , N. A. H. Ramli , Siti Khadijah Za'aba , Mohammad Taufiq Mustaffa , Wan Khairunizam Wan Ahmad , Shahriman Abu Bakar

This article presents the results of experimental work on the identification of reactive species produced by plasma discharge in liquid. The analysis was conducted using methylene blue (MB) as chemical probe. There are two objectives, 1) to identify the effect of ground electrode configuration to the presence of reactive species and 2) to observe the ground electrode durability. Results showed that, degradation of MB occurred when using 7 kV input supply and insulated ground electrode for 10 minutes. Meanwhile, the other input supply (7.8 kV and 8.6 kV) were unable to degrade MB solution.

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