Uda Hashim, Prof. Ts. Dr.: Recent submissions
Now showing items 101-120 of 244
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Polysilicon nanowire fabrication as a transducer for fast reaction assays in nano lab-on-chip domain
(American Scientific Publishers, 2013-02)The difficulty with the treatment of cancer is caused by lack of ability to detect the tumor associated with the disease at the early stage. Often, cancer is detected in its later stages, when it has compromised the function ... -
Design and fabrication of PDMS microchamber for fast reaction assays in biosensing application.
(Trans Tech Publications, 2013)A simple design of a microchamber for use in reacting assays with limited sample availability has been proposed, analyzed using COMSOL 3.5 Multiphysics simulation and fabricated using soft-lithography technique. The design ... -
The electroosmosis mechanism for fluid delivery in PDMS multi-layer microchannel
(American Scientific Publishers All rights reserved., 2013-01)Here we reported on fabrication of multi-layer microstructures that takes the advantage of electroosmosis to mix fluids. Microlaboratories for biochemical applications often require rapid mixing of different fluid streams. ... -
Alternative-current electrochemical etching of uniform porous silicon for photodetector applications
(Electrochemical Science Group, 2013)The twining of alternative-current (AC) with electrochemical etching (ECE) to fabricate porous silicon (PS) is studied. The porosity percentage is obtained by gravimetric analysis. The effect of different current densities; ... -
Design of 3D micromixer for bio-synthesis using COMSOL multiphysics software package
(American Scientific Publishers, 2013-12)Moving parts of micrometer scale make the chips very expensive and fragile and are therefore to be avoided if at all possible. An alternative method for transporting fluid in the samples is through capillary effect, the ... -
Effect of manganese content on the fabrication of porous anodic alumina
(Hindawi Publishing Corporation, 2012)The influence of manganese content on the formation of well-ordered porous anodic alumina was studied. Porous anodic alumina has been produced on aluminium substrate of different manganese content by single-step anodizing ... -
Effect of different seed solutions on the morphology and electrooptical properties of ZnO Nanorods
(Hindawi Publishing Corporation, 2012)The morphology and electrooptical properties of ZnO nanorods synthesized on monoethanolamine-based seed layer and KOHbased seed layer were compared. The seed solutions were prepared in monoethanolamine in 2-methoxyethanol ... -
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 ... -
Study of frequency dependent electrical properties of ZnO nanorods
(Universiti Malaysia Perlis (UniMAP), 2012-06-18)Impedance spectroscopy is used to study the frequency dependent electrical parameters such as impedance, dielectric constant and conductivity of ZnO nanorods MSM structure in the range of 1 Hz to 10MHz under atmospheric ... -
Structural, morphological and optical studies of CdS nanostructures
(Universiti Malaysia Perlis (UniMAP), 2012-06-18)Cadmium sulfide (CdS) thin films of nanostructure were prepared with Cd:S (1.2 to 0.05 mol/L) and different spin coating speed (1000 and 5000 rpm) using sol-gel spin coating technique. Structural, morphological and ... -
A review of microfluidic sensing system for medical application
(Universiti Malaysia Perlis (UniMAP), 2012-06-18)In this paper, we present about the preview paper of Microfluidic sensing system and simulation using COMSOL Multiphysics. Based on the basic Microfluidic system, pervious paper and work can help us to more understand and ... -
Development of interdigitated electrode molecular imprinted polymer sensor for monitoring alpha pinene emissions from mango fruit
(Malaysian Technical Universities Network (MTUN), 2012-11-20)Alpha Pinene is a type of terpene hydrocarbons commonly emitted in substantial amounts by plants such as mango. Using Interdigitated Electrode (IDE) structure, a sensor for detecting Alpha Pinene volatile by using molecular ... -
Recognition of Limonene volatile using Interdigitated Electrode molecular imprinted polymer sensor
(Institute of Electrical and Electronic Engineers (IEEE), 2012-02-08)Limonene is a type of terpene hydrocarbons commonly produced by plants and known to possess a strong smell of oranges. Electronic nose (e-nose) is an artificial olfaction device that is able to replicate the human ... -
Resist uniformity evaluation through swing curve phenomena
(INSInet Publications, 2012)In fabrication of Micro/ Nano structure, alignment and exposure are the most critical steps in photolithography process, the resolution requirements and precise alignment are vital; each mask needs to be precisely aligned ... -
Low cost fabrication of micromixer and microchamber for microfluidic lab-on-chip
(Institute of Electrical and Electronic Engineers (IEEE), 2012)Microfluidic technology has been given the contribution in biomedical and chemistry. The testing and diagnosis on bio-reagents has the efficiency increased through the implementation of microfluidic technology, such as lab ... -
Computational micro fluid dynamics using COMSOL multiphysics for sample delivery in sensing domain
(Institute of Electrical and Electronic Engineers (IEEE), 2012)Engineering of fluid flow with within various structure for different application is a scientific quest and Microfluidic devices present a powerful platform for working with living cells and other medical application. The ... -
Subnanometer poly-silicon gap structure formation: Comparison study between size expansion and size reduction
(American Institute of Physics., 2012)This study describes the comparison among the three fabrication methods of an array of poly-silicon nanogap structures. The three different methods are size expansion technique (SET), size reduction technique (SRT) and ... -
Silicon nanowire sensor by mix and match lithography process: Fabrication and characterization
(American Institute of Physics, 2012-06-06)Silicon nanowires (SiNWs) have attracted significant interest in the study because of their potential to impact applications from nanoscale electronics to biomedical engineering. E-Beam Lithography couple with standard ... -
A review on the label free nanowire based biosensor
(AENSI Publications, 2012)Advancement in nanotechnologies has encourage researchers to conduct studies related to nanowires formation. Studies regarding the types of nanowire based biosensors have been conducted and reported in this papers. Methods ... -
Fabrication of polysilicon nanowires using trimming technique
(AENSI Publications, 2012-04)Recently most researches are more to scaling down the electronic devices and this fact including component, structure and complexity of electronic devices. These matters also include fabrication of nanowires in certain ...