Browsing Uda Hashim, Prof. Ts. Dr. by Title
Now showing items 95-114 of 249
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Fabrication of silicon nitride ion sensitive field-effect transistor for pH measurement and DNA immobilization/hybridization
(Hindawi Publishing Corporation, 2013)The fabrication of ion sensitive field-effect transistor (ISFET) using silicon nitride (Si3N4) as the sensing membrane for pH measurement and DNA is reported. For the pH measurement, the Ag/AgCl electrode was used as the ... -
Formation of carbon nanotubes from methane decomposition: Effect of concentration of Fe₃O₄ on the diameters distributions
(Trans Tech Publications, 2014)Fe₃O₄ was used to synthesize narrow diameter of carbon nanotubes (CNTs). The effect of concentration of Fe₃O₄ on the diameters of carbon nanotubes (CNTs) synthesized by methane decomposition at 1000°C was investigated. We ... -
Formation of Si nanostructure using size reduction technique
(Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)A simple method for the fabrication of nanogaps using conventional photolithography combined with pattern-size reduction techniques is presented. Silicon material is used to fabricate the nanogap structure and gold is used ... -
From nanostructure to nano biosensor: Institute of Nano Electronic Engineering (INEE), UniMAP experience
(Universitas Negeri Semarang, 2011-11)Nanostructure is defined as something that has a physical dimension smaller than 100 nanometers, ranging from clusters and/or to dimensional layers of atoms. There are three most important nanostructures that are extensively ... -
From sand to Silicon wafer
(Kolej Universiti Kejuruteraan Utara Malaysia, 2003-07) -
Functionalised zinc oxide nanotube arrays as electrochemical sensors for the selective determination of glucose
(The Institution of Engineering and Technology, 2011-08)In the present study, highly oriented single-crystal zinc oxide nanotube (ZnO-NT) arrays were prepared by a trimming of ZnO nanorods along the c-axis on the gold-coated glass substrate having a diameter of 100-200nm and a ... -
Functionalization of Si Nanowire Surfaces to Create Interactive Mechanism for Heavy Metals Detection Application
(IOP Publishing, 2018)Silicon (Si) nanostructure was prepared using a cheap and in-house technique. The device was fabricated via dry oxide etching approach with a controlled oxygen flow rate in an oxidation furnace, a network of uniform Si ... -
Further optical properties of CdX (X¼ S, Te) compounds under quantum dot diameter effect: Ab initio method
(Elsevier Ltd., 2012-09)For energy band calculations, the indirect energy gap (G X) is calculated using density functional theory (DFT) of the full potential-linearized augmented plane wave (FP-LAPW) method as implemented in WIEN2K code. The ... -
Gold nanoparticle sensor for the visual detection of pork adulteration in meatball formulation
(Hindawi Publishing Corporation, 2012)We visually identify pork adulteration in beef and chicken meatball preparations using 20 nm gold nanoparticles (GNPs) as colorimetric sensors. Meatball is a popular food in certain Asian and European countries. Verification ... -
Hexagon platinum Schottky contact with ZnO thin film for hydrogen sensing
(Penerbit UTM Press, 2013)This paper reports on the study of the effect on adding total peripheries and sharp edges to the Schottky contact as a hydrogen sensor. Schottky contact was successfully designed and fabricated as hexagon-shape. The contact ... -
High speed and low power devices : bulk silicon versus SOI
(Kolej Universiti Kejuruteraan Utara Malaysia, 2005-04) -
Highly selective molecular imprinted polymer (MIP) based sensor array using interdigitated electrode (IDE) platform for detection of mango ripeness
(Elsevier B.V., 2013)Detection of mango ripeness was performed by developing a highly selective molecularly imprinted polymers (MIP) layer combined with interdigitated electrode (IDE) as sensor. Mango volatiles from different week of ripeness ... -
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 ... -
The Impacts of Platinum Diffusion to the Reverse Recovery Lifetime of a High Power Diode Devices
(EDP Sciences, 2016)The reverse recovery lifetime of a diode is one the key parameter in power electronics market. To make a diode with fast switching speed, diodes are often doped with impurities such as gold and platinum to improve its ... -
Influence of current density on porous silicon characteristics
(Trans Tech Publications, 2013)Porous silicon structures have been fabricated by electrochemical etching using different current density. From field emission scanning electron microscope images (FE-SEM) it was observed that more uniform distribution of ... -
Influence of shear strength on long term biased humidity reliability of Cu ball bonds
(Springer Science+Business Media New York, 2014-10)This paper compares and discusses the influence of shear strength (in terms of shear-per mils-square) of Au and Cu ball bonds on the biased humidity reliability performance in SOIC 8LD leaded package. Biased (HAST) highly ... -
ISFET for pH Sensor
(Universiti Sains Islam Malaysia (USIM), 2010-09-26)ISFET is an ionic Sensitive Field Effect Transistor that has similar structure to that of a conventional MOSFET. -
Isolation, characterization, and identification of biological control agent for potato soft rot in Bangladesh
(Hindawi Publishing Corporation, 2012)A total of 91 isolates of probable antagonistic bacteria of potato soft rot bacterium Erwinia carotovora subsp. carotovora (Ecc) were extracted from rhizospheres and endophytes of various crop plants, different soil ... -
Low cost detection of pH and its effect on the capacitive behavior of micro-gap sensor
(Trans Tech Publications, 2014)The article describes the fabrication and characterization of silver microgap sensor on silicon substrate. By employing cheap photolithography process the proposed microgap sensor has been fabricated. The silver microgap ... -
Low cost diffuser based micropump using pinch actuation
(Scientific.net, 2011-12)Planar pinch micropump with the integration of two diffuser valve elements has been reported. The fabrication of the micropump is carried out by utilizing simple hot embossing technique for microdiffuser imprinting and ...