Now showing items 105-124 of 206

    • Low cost detection of pH and its effect on the capacitive behavior of micro-gap sensor 

      Qazi Muhammad, Humayun; Uda, Hashim, Prof. Dr.; Tijjani Adam, Shuwa (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 

      Chee, Pei Song; Ruzairi, Abdul Rahim; Uda, Hashim, Prof. Dr.; Rashidah, Arsat; Leow, Pei Ling (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 ...
    • Mask design and fabrication of Micro/Nanowire biochip for reliable and repeatability pattern transfer 

      Veeradasan, Perumal; Uda, Hashim, Prof. Dr.; Tijjani Adam, Shuwa (Trans Tech Publications, 2014)
      In Micro/Nanowire fabrication, the alignment and exposure process are the most critical steps in photolithography process, and indeed for the whole biochip processing. This process determines the success of transferring ...
    • Mask design and simulation: Computer aided design for lab-on-chip application 

      Veeradasan, Perumal; Uda, Hashim, Prof. Dr.; Tijjani Adam, Shuwa (Trans Tech Publications, 2014)
      A simple design and simulation of microwire, contact pad and microfluidic channel on computer aided design (CAD) for chrome mask fabrication are described.The integration of microfluidic and nanotechnology for miniaturized ...
    • Mask design platform for zinc oxide nanowire growth 

      Rajintra Prasat, Haarindra Prasat; Uda, Hashim, Prof. Dr.; Tijjani Adam, Shuwa (Trans Tech Publications, 2013)
      This paper mainly represent the simple and effective method to design the chrome mask for patterning the platform for zinc oxide nanowire growth. The most essential aspect that need to be considered in designing the chrome ...
    • Micro/nanoscale biosensing in microfluidics: Selection of polymers and microstructures 

      Tijjani Adam, Shuwa; Uda, Hashim, Prof. Dr.; Leow, Pei Ling; Md Eaqub, Ali (AENSI Publications, 2012-01)
      Microfluidic techniques based on nanotechnology for miniaturized lab-on-chip systems have recently received huge research attention because of its undisputable and widespread biomedical applications. For the development ...
    • Microfluidic photomask design using CAD software for application in lab-on-chip biomedical nano diagnostics 

      Balakrishnan, Sharma Rao; Uda, Hashim, Prof. Dr. (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 ...
    • Microfluidics design and fabrication for life sciences application 

      Tijjani Adam, Shuwa; Uda, Hashim, Prof. Dr.; Foo, Kai Loong (American Scientific Publishers, 2013-01)
      This paper introduces a simple design and fabrication for microfluidics that need no external pumping power to delivery fluid into sensing domain with minimum sample available. Analysis using COMSOL 3.5 Multiphysics ...
    • Micropump pattern replication using Printed Circuit Board (PCB) technology 

      Pei, Song Chee; Rashidah @ Siti Saedah, Arsat, Dr.; Uda, Hashim, Prof. Dr.; Ruzairi, Abdul Rahim, Prof. Dr.; Loew, Pei Ling, Dr. (Taylor and Francis Group, LLC., 2013-06-01)
      This article shows a low-cost rapid hot embossing poly (methylmeth acrylate) (PMMA)-based micropump replication with printed circuit board (PCB) mold. PCB material offers advantages of low cost, rigid, and rapid thermal ...
    • Modeling development of a high-sensitivity escherichia coli O157:H7 detection based on SH SAW sensor 

      Seng Teik, Ten; Uda, Hashim, Prof. Dr.; Ahmad Sudin; Wei Wen, Liu; Kai Loong, Foo; N.H.M. Salleh; Hasrul, Hisham; Nazwa, T. (Trans Tech Publications, 2014-04)
      Surface acoustic waves based devices were initially developed for the telecommunication purpose such as signal filters and resonators. The acoustic energy is strongly confined on the surface of the surface acoustic waves ...
    • Modeling of structural properties of hexagonal semiconductors 

      Ghassan E., Arif; Farah Aini, Abdullah, Dr.; Yarub, Al-Douri, Assoc. Prof. Dr. (Elsevier B.V., 2013)
      Bulk modulus of hexagonal structure semiconductors are calculated by using density functional theory (DFT) of full-potential linear augmented plane wave (FP-LAPW) within general gradient approximation (GGA). In this work, ...
    • Modular architecture of a non-contact pinch actuation micropump 

      Chee, Pei Song; Rashidah, Arsat. Dr.; Tijjani Adam, Shuwa; Uda, Hashim, Prof. Dr.; Ruzairi, Abdul Rahim, Prof. Dr.; Leow, Pei Ling (MDPI, Basel, Switzerland., 2012-09)
      This paper demonstrates a modular architecture of a non-contact actuation micropump setup. Rapid hot embossing prototyping was employed in micropump fabrication by using printed circuit board (PCB) as a mold material in ...
    • Morphological, optical, and Raman characteristics of ZnO nanoflakes prepared via a sol-gel method 

      Mohammad, Kashif; Syed Muhammad, Usman Ali; Mohamed A, Mohd Ali; Abdulgafour, H. I.; Uda, Hashim, Prof. Dr.; Willander, Magnus; Zainuriah, Hassan (WILEY-VCH Verlag GmbH & Co., 2012-01)
      Two-dimensional (2D) ZnO nanoflakes were grown on thin aluminum layer, deposited on silicon substrate, using a sol-gel method. The surface morphologies of ZnO nanoflakes at different precursor concentrations were studied ...
    • Morphological, structural, and electrical characterization of sol-gel-synthesized ZnO nanorods 

      Muhammad Kashif, Muhammad Faroow; Uda, Hashim, Prof. Dr.; Md Eaqub, Ali, Dr.; Foo, Kai Loong; Syed Muhammad Usman, Ali Shah, Dr. (Hindawi Publishing Corporation, 2013)
      ZnO nanorods were grown on thermally oxidized p-type silicon substrate using sol-gel method. The SEM image revealed high-density, well-aligned, and perpendicular ZnO nanorods on the oxidized silicon substrate. The XRD ...
    • Morphological, structural, and gas-sensing characterization of tin-doped indium oxide nanoparticles 

      Ayeshamariam, A.; Muhammad, Kashif; Bououdina, M.; Uda, Hashim, Prof. Dr.; Jayachandran, M.; Md. Eaqub, Ali (Elsevier, 2014-01)
      Tin-doped indium oxide (ITO) nanoparticles with stable cubic phases were synthesized using a sol–gel combustion method that includes gelation and combustion in organic fuel. The influence of SnO₂ on the phase and morphology ...
    • Morphology and optical investigations of ZnO pyramids and nanoflakes for optoelectronic applications 

      N. K., Hassan; M. Roslan, Hashim; Yarub, Al - Douri (Elsevier, 2014-06)
      Zinc-oxide (ZnO) pyramidal and nanoflakes were grown by electrochemical deposition of Zn(NO3)2·6H2O on n-type Si substrate with different crystallographic orientations and on indium tin oxide (ITO)-coated glass. Various ...
    • Morphology, analysis and properties studies of CdS nanostructures under thiourea concentration effect for photovoltaic applications 

      Yarub, Al-Douri, Assoc. Prof. Dr.; Jamal H., Waheb; Mohammed Ameri; Khenata, R.; Abdelmadjid, Bouhemadou; Ali Hussain, Reshak, Prof. Dr. (Electrochemical Science Group, 2013-08)
      CdS nanostructures are prepared by sol-gel spin coating method using different thiourea concentrations. The thiourea concentration effect for CdS nanostructures deposited on quartz substrate is studied. The CdS nanostructures ...
    • Nanobioprobe for the determination of pork adulteration in burger formulations. 

      Md. Eaqub, Ali; Shuhaimi, Mustafa, Assoc. Prof Dr.; Uda, Hashim, Prof. Dr.; Yaakob, Che Man, Prof. Dr; Foo, Kai Loong (Hindawi Publishing Corporation, 2012)
      We report the development of a swine-specific hybrid nanobioprobe through a covalent integration of a fluorophore-labeled 27-nucleotide AluI-fragment of swine cytochrome b gene to a 3nm gold nanoparticle for the determination ...
    • Nanobiosensor for the detection and quantification of pork adulteration in meatball formulation 

      Md. Eaqub, Ali, Dr.; Uda, Hashim, Prof. Dr.; Shuhaimi, Mustafa; Yaakob, Che Man; Tijjani Adam, Shuwa; Qazi Muhammad, Humayun (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 ...
    • Nanoelectrode chrome photomask design and specification for biosensor fabrication 

      Balakrishnan, Sharma Rao; Uda, Hashim, Prof. Dr. (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 ...