Uda Hashim, Prof. Ts. Dr.: Recent submissions
Now showing items 21-40 of 249
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Simulation of 1GHz center frequency SAW using CST software for biosensor application
(IDOSI Publications, 2013)Surface Acoustic Wave (SAW) is a one of the essential components that used for sensor application to detect in various fields. The high center frequencywill improve the sensitivity of SAW biosensor. Therefore, it's very ... -
Nanoelectrode chrome photomask design and specification for biosensor fabrication
(Trans Tech Publications, 2013)This paper explains the most crucial part of any microchip fabrication, which is the mask design for photolithography process. The design is initially sketched roughly to meet the design specification and later on designed ... -
Microfluidic photomask design using CAD software for application in lab-on-chip biomedical nano diagnostics
(Trans Tech Publications, 2013)Photomasks are used as stencil to print images on semiconductor material. This study represents design and specifications of photomask for microfluidic fabrication. For a precise pattern transfer, the photomask should meet ... -
Effects of reaction time on the morphological, structural, and gas sensing properties of ZnO nanostructures
(Elsevier, 2014-02)Morphological transformation was achieved from ZnO hexagonal needle-like rods to hexagonal flower-like rods by varying the reaction growth time using the hydrothermal method. Optical bandgap energies were calculated from ... -
Selective growth of ZnO nanorods on microgap electrodes and their applications in UV sensors
(Springer, 2014-01)Selective area growth of ZnO nanorods is accomplished on microgap electrodes (spacing of 6μm) by using a facile wet chemical etching process. The growth of ZnO nanorods on a selected area of microgap electrode is carried ... -
Chalcogenide nanostructures: Topography, synthesis, properties, and applications
(AIP Publishing LLC, 2014)High-quality Cadmium sulfide (CdS) nanostructures for high-efficiency optoelectronic devices were prepared at different annealing temperatures using a sol-gel spin-coating method. Atomic force microscopy and X-ray diffraction ... -
Advances in biosensors: Principle, architecture and applications
(Elsevier, 2014-01)The ability to detect pathogenic and physiologically relevant molecules in the body with high sensitivity and specificity offers a powerful opportunity in the early diagnosis and treatment of diseases. Early detection and ... -
Protein solubility behaviour of fresh and frozen chicken meat in slaughtering and non slaughtering condition
(Faculty of Food Science & Technology, Universiti Putra Malaysia, 2014)This work was investigated the protein solubility properties of meat from chicken in different body part. The effects of fresh and freezing condition were studied on the protein solubility as a functional property of ... -
Design and fabrication of silicon nanowire based sensor
(Electrochemical Science Group (ESG), 2013)This paper reports the process development of silicon nanowires sensor requires both the fabrication of nanoscale diameter wires and standard integration to CMOS process. By using silicon-on-insulator (SOI) wafer as a ... -
Chrome mask design for microfluidic fabrication
(Trans Tech Publications, 2013)This paper presents a simple and effective method to design chrome mask for microfludic fabrication. Microfluidic fabrication involves 9 major step and mainly depends on the master mold template formation by SU-8 photoresists ... -
Nanobiosensor for the detection and quantification of pork adulteration in meatball formulation
(Taylor & Francis, 2014)A 27-nucleotide AluI fragment of swine cytochrome b (cytb) gene was integrated to 3-nm diameter citrate–tannate-coated gold nanoparticles to fabricate a species-specific nanobiosensor. The biosensor was applied to authenticate ... -
A simple one-step anodising method for the synthesis of ordered porous anodic alumina
(Taylor & Francis, 2014)Porous anodic alumina (PAA) has been produced on aluminium substrate by single-step anodising at 50 V in 0.3 M oxalic acid at 15°C for 60 min. The highly ordered pore and cell structure was achieved by subjecting the PAA ... -
Effect of buffer and pH on the protein extraction for chicken meat
(Trans Tech Publications, 2013)The study was undertaken to determine the extraction of proteins from chicken meat. The effect of buffer (phosphate, citrate and glycine) and four pH values (6.0, 7.0, 8.0 and 9.0) were investigated. The protein extractability ... -
Performance of hexagon Au electrode on ZnO thin film schottky diode gas sensor
(International Frequency Sensor Association (IFSA), 2013)This paper presents an analysis of Schottky diode performance with the utilization of zinc oxide (ZnO) thin film as a gas sensor. The presented device is implemented with new type of electrode shape which is hexagon compared ... -
Structural and optical properties of PbI2 nanostructures obtained using the thermal evaporation method
(NRC Research Press, 2013-10)Lead iodide (PbI2) nanostructures were successfully prepared using the thermal evaporation method on a glass substrate at room temperature. The structural properties were analyzed using X-ray diffraction, which revealed ... -
Synthesis of single-walled carbon nanotubes: Effects of active metals, catalyst supports, and metal loading percentage
(Hindawi Publishing Corporation, 2013)The effects of active metals, catalyst supports, and metal loading percentage on the formation of single-walled carbon nanotubes (SWNTs) were studied. In particular, iron, cobalt, and nickel were investigated for SWNTs ... -
Comparative reliability studies and analysis of Au, Pd-coated Cu and Pd-doped Cu wire in microelectronics packaging
(Public Library of Science, 2013-11)This paper compares and discusses the wearout reliability and analysis of Gold (Au), Palladium (Pd) coated Cu and Pd-doped Cu wires used in fineline Ball Grid Array (BGA) package. Intermetallic compound (IMC) thickness ... -
Structural and morphological studies of cadmium sulfide nanostructures
(Trans Tech Publications, 2013)Cadmium sulfide (CdS) nanostructures were prepared with different spin coating speed 1000 and 3000 rpm and molarities of Cd:S to be 1.2 to 0.01 mol/L using sol-gel spin coating technique. It is found that the average grain ... -
Study of frequency dependent electrical properties of ZnO nanorods
(Emerald Group Publishing Limited, 2013)Purpose - The purpose of the current research is to use impedance spectroscopy to study the AC parameters that varied with frequency such as impedance, dielectric constant and conductivity of ZnO nanorods MSM structure in ... -
Impact of hydrogen concentrations on the impedance spectroscopic behavior of Pd-sensitized ZnO nanorods
(Licensee Springer, 2013)ZnO nanorods were synthesized using a low-cost sol-gel spin coating technique. The synthesized nanorods were consisted of hexagonal phase having c-axis orientation. SEM images reflected perpendicular ZnO nanorods forming ...