Discarded expanded polystyrene (EPS) poses significant environmental challenges due to its accumulation in landfills and resistance to degradation. Upcycling EPS into 3D-printable recycled polystyrene (rPS) filament for use in fused filament fabrication (FFF) shows a promising sustainable solution. However, fabricating 3D-printable filaments from recycled plastics presents several challenges,...
Microwave hyperthermia (MWH) is an application using mild heat at a temperature range of 40-42°C to treat cancers. The source of local mild heat is emitted from the friction forces of oscillated dipole actions of water molecules in tissues. The local mild heat attracts temperature-sensitive anticancer drugs which allows efficient chemotherapy and reduce side effects. Unfortunately, studies...
Aflatoxins are secondary metabolites produced by Aspergillus flavus and Aspergillus parasiticus. Among them, aflatoxin B1 (AFB1) has garnered the most attention due to its toxigenic, mutagenic, and carcinogenic properties. Researchers worldwide have explored various strategies to mitigate the presence of these hazardous toxins. One of the most cost-effective approaches for reducing AFB1...
Natural dolomite sedimentary rocks, which can be found in abundance in Perlis is a carbonate mineral rich with calcium and magnesium elements. These both elements were important and typically found in bioceramic materials especially for hard tissue implant material. Even though raw Perlis dolomite powder has other various elemental compositions, it lacks important component such as silica and...
This study focused on the application of nanoceramic particles to enhance the surface properties of UNS S31803 steel through the deposition of titanium carbide (TiC) nanoparticles, sized 5 nm and 10 nm, using the tungsten arc melting technique. Despite its advantages, UNS S31803's soft material and low wear resistance are significant challenges for engineering applications, requiring...
Abstract
This study explores the utilization of nanocellulose derived from durian rind as a reinforcing agent in electrospun nanofibers intended for potential use in livestock semen preservation. Nanocellulose was extracted through alkaline treatment followed by acid hydrolysis and incorporated into polyvinyl alcohol (PVA) solutions. Two surfactants, Tween 20 and Tween 80, were investigated...
The successful establishment of oyster mushroom seeds depends on Potato Dextrose Agar (PDA). In this study, the sterilization level of media varied from level 1 to 3. For each sterilization level, PDA were steamed at 102 C for 60 minutes. The best result was found at the third level, which was shown by the growth of mycelium. All of the spread seeds (F1) produced were good and not...
The successful establishment of oyster mushroom seeds depends on Potato Dextrose Agar (PDA). In this study,the sterilization level of media varied from level 1 to 3. For each sterilization level, PDA were steamed at 102 0C for 60 minutes. The best result was found at the third level which was shown by growing of mycelium. All of spread seeds (F1) produced were good and not contaminated. The...
This study evaluates a energy harvester prototype comprising a PDMS-based mechanical membrane and an electromagnetic component, designed to convert vibrational energy into electricity. The prototype was tested on three distinct vibrating machines: a Dynamic Rotor Machine, a motorcycle engine, and a Boeing 737-600 aircraft turbine. Vibrational frequency was measured using an FFT CF360A...
The purpose of this study was to examine the effect of using glass waste powder as a reinforcing material on composite brake pads. Specimens were made using the hot isostatic pressing method at a temperature of 250 °C for 2 hours by varying the volume fraction of glass powder (9.9%vol - 29.9%vol). Tests carried out included hardness, wear, friction coefficient, and thermal resistance of brake...
Aflatoxin are secondary metabolites produced by Aspergillus flavus that infested grains especially grain corn. Among the various aflatoxins, aflatoxin B1 (AFB1) are recognized as highly potent, with its carcinogens to humans and livestock. There were several strategies has been developed to counter the aflatoxin contamination but most of the approaches often comes with limitation. The most...
The study demonstrates the profound impact of niobium (Nb) doping on the structural, optical, morphological, and photovoltaic properties of TiO₂-based photoanodes. Structural analysis through X-ray diffraction confirms the effective incorporation of Nb into the TiO₂ lattice, as indicated by slight increases in crystallite size and reductions in cell volume and lattice parameters, leading to a...
Power conversion efficiency (PCE) from naturally-sensitized DSSCs is typically in the average range (<0.05–1.7%). It requires a thorough understanding of the role of pigment’s molecular structure, electronic properties, anchoring groups, and conjugated double bonds or free π-electrons for improved PCE from enhanced carriers transport and decreased recombination. Narrowband absorption and poor...
Transdermal drug delivery systems (TDDS) using nanobiotechnologies enhance treatment effectiveness by bypassing gastrointestinal metabolism, allowing for better drug targeting and improved outcomes. This study describes the preparation of cellulose acetate (CA)-based nanofibrous membranes as sophisticated biomaterials enabled with Temozolomide (TMZ), an anticancer drug commonly used in...
The issue of CO₂ corrosion on mild steel has been the main problem in oil and gas industry, particularly in transportation systems for crude oil and natural gas. The corrosion behaviour of mild steel in CO₂ environment at varying temperatures was studied through weight loss test, surface analysis and phase characterization of corrosion products. Mild steel samples were exposed to two media,...
