Now showing items 162-181 of 253

    • Optoelectronic properties of GaAs and AlAs under temperature effect 

      Yarub, Al-Douri, Assoc. Prof. Dr.; Ali Hussain, Reshak, Prof. Dr.; Uda, Hashim, Prof. Dr. (Elsevier GmbH, 2013-08)
      An application study of optoelectronic properties as a function of the temperature for GaAs and AlAs according to our model has been presented using empirical pseudopotential method (EPM). The structural phase transition ...
    • Organic thin film transistor memories with carbon nanodots fabricated by focused ion beam chemical vapor deposition 

      Ruslinda, Abd. Rahim; Uda, Hashim, Prof. Dr.; Fukuda, Hisashi; Tada, Yoshihiro; Wainai, Noriyuki; Uesugi, Katsuhiro; Shimoyama, Yuhei (American Institute of Physics, 2009-06-01)
      Metal-insulator-semiconductor field effect transistor (MISFET) structures with a nanocrystal carbon (nc-C) embedded in SiO2 thin films using a focused ion beam chemical vapor deposition (FIBCVD) system with a precursor of ...
    • Pattern designed for combination of optical lithography and electron beam lithography 

      S. Fatimah, Abd Rahman; Uda, Hashim, Prof. Dr.; Mohammad Nuzaihan, Md Nor; A. M., Mohamed Nuri; Muhamad Emi Azri, Shohini (Universiti Malaysia Pahang, 2009-06-20)
      In this paper the fabricated pattern of nanometer and micrometer structures created with electron beam lithography (EBL) and optical lithography on silicon on insulator (SOI) material is presented. The resist used to ...
    • Performance of hexagon Au electrode on ZnO thin film schottky diode gas sensor 

      Mas Elyza, Mohd Azol; Mahnaz, Shafiei, Dr.; Loew,  Pei Ling, Dr.; Foo, Kai Loong; Uda, Hashim, Prof. Dr.; Rashidah @ Siti Saedah, Arsat, Dr. (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 ...
    • Photodynamic damage in liver carcinoma HepG2 cells 

      Muhammad, Fakhar-e-Alam, Dr.; Syed Muhammad, Usman Ali; S., Ali; S., Firdous; Muhammad, Atif, Dr.; Zafar Hussain, Ibupoto; Willander, M., Prof.; Mohammad, Kashif; Uda, Hashim, Prof. Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2012-02-27)
      Cirrhosis is the consequence of chronic liver disease, which is common in people of Asian countries. In this experimental approach, HepG2 cells are treated as experimental model (appropriate biological sample), extracted ...
    • Plant diseases detection using nanowire as biosensor transducer 

      Shahrul Aizzam, Ariffin; Tijjani Adam, Shuwa; Uda, Hashim, Prof. Dr.; Faridah, Salam; Zamri, Ishak; Muhammad Nur Aiman, Uda (Trans Tech Publications, 2014)
      The plant disease such as Cucumber Mosaic Virus (CMV) and Papaya Ring Spot Virus (PRSV) is a most dangerous disease that can decrease productivity and quality of the vegetable and fruit. Besides that, its also can destroy ...
    • PMMA characterization and optimization for Nano Structure formation 

      S Niza, Mohammad Bajuri; Nur Hamidah, Abdul Halim; Mohammad Nuzaihan, Md Nor; Uda, Hashim (Kolej Universiti Kejuruteraan Utara Malaysia, 2005-05-18)
      The limitations imposed on optical lithography by the wavelength of light have been overcome using electron lithography. Electron lithography offers high resolution because of the small wavelength of the 10-50 keV electrons ...
    • Polysilicon nanogap fabrication using a thermal oxidation process 

      Dhahi, T.S; Uda, Hashim, Prof. Dr.; Md. Eaqub, Ali; Nazwa, Taib (Emerald Group Publishing Limited., 2012)
      Purpose - Nanogap electrodes have important applications in power saving devices, electrochemical sensors and dielectric detections of biomolecules. The purpose of this paper is to report on the fabrication and characterization ...
    • Polysilicon nanowire fabrication as a transducer for fast reaction assays in nano lab-on-chip domain 

      Tijjani Adam, Shuwa; Uda, Hashim, Prof. Dr.; Dhahi, Th Sabar; Foo, Kai Loong; Leow, Pei Ling; Chee, Pei Song (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 ...
    • Potentiality of polysilicon nanogap structure for label-free biomolecular detection 

      Thikra S., Dhahi; Uda, Hashim, Prof. Dr.; Md Eaqub, Ali, Dr. (Emerald Group Publishing Limited, 2013)
      Purpose - The purpose of this paper was to systematically study the electrical properties of 5-, 42- and 75-nm gap polysilicon structures to evaluate the potentiality of these structures to be used in biomolecular sensing ...
    • A potentiometric indirect uric acid sensor based on ZnO nanoflakes and immobilized uricase 

      Syed Muhammad, Usman Ali, Dr.; Zafar Hussain, Ibupoto; Muhammad, Kashif; Uda, Hashim, Prof. Dr.; Willander, Magnus (MDPI, 2012-03)
      In the present work zinc oxide nanoflakes (ZnO-NF) structures with a wall thickness around 50 to 100 nm were synthesized on a gold coated glass substrate using a low temperature hydrothermal method. The enzyme uricase was ...
    • Precise alignment of individual single-walled carbon nanotube using dielectrophoresis method for development and fabrication of pH sensor 

      Uda, Hashim, Prof. Dr.; Foo, Wah Low; Liu, Wei Wen, Dr. (Hindawi Publishing Corporation, 2013)
      Development and fabrication of single-walled carbon nanotube (SWNT) based pH sensor were reported. The precise alignment of individual SWNT using dielectrophoresis method between the two microgap electrodes was conducted, ...
    • Preliminary Studies on Antimicrobial Activity of Extracts from Aloe Vera Leaf, Citrus Hystrix Leaf, Zingiber Officinale and Sabah Snake Grass Against Bacillus Subtilis 

      Muhammad Nur Aiman, Uda; Subash C.B., Gopinath; Nur Hulwani, Ibrahim; Mohd Khairul Rabani, Hashim; ‪Nuradibah, Mohd Amer‬; Midhat Nabil, Ahmad Salimi‬; Tan, Ewe Shen; Ong, Yee Fen; Maisara Azad, Mat Akhir; Uda, Hashim (EDP Sciences, 2018)
      Herbal plants have several potential antimicrobial activities either as antifungal or antibacterial to fight against the disease and pathogen that attack the plants. The extractions of the Aloe vera leaf, Citrus hystrix ...
    • Pressure effect on Si quantum-dot potential 

      Yarub K. A., Al-Douri; Uda, Hashim, Prof. Dr.; Ahmed, N. M.; Zaliman, Sauli, Prof. Madya (American Institute of Physics, 2009-06-01)
      Application study of the quantum dot potential as a function of hydrostatic pressure for Si has been presented. This study has been calculated by means of our recent model using empirical pseudopotential method. The effect ...
    • Protein solubility behaviour of fresh and frozen chicken meat in slaughtering and non slaughtering condition 

      Nahar, M. K.; Zarina, Zakaria, Dr.; Uda, Hashim, Prof. Dr. (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 ...
    • Quantum DOT Single Electron Transistor 

      Uda Hashim, Assoc. Prof. Dr.; Zul Azhar, Zahid Jamal, Prof. Dr.; Sutikno Madnasri (School of Microelectronic Engineering, 2008-01-09)
    • Quantum Dot Single Electron Transistor Structure Formation Using E-Beam Lithography 

      Uda, Hashim, Prof. Dr.; Zul Azhar, Zahid Jamal, Prof. Dr.; Samsudi, Sakrani, Prof. Dr.; Sutikno, Madnarski (C. I. S. Network, 2007-05-18)
      To achieve room temperature operation of single electron transistor (SET). To form single dot chanted for electron transport in SET via the Coufomb Blockade Oscillation (CBO) phenomenon.
    • Quantum Dot Single Electron Transistor: Design and Fabrication 

      Uda, Hashim, Prof. Dr.; Zul Azhar, Zahid Jamal, Prof. Dr.; Samsudi, Sakrani, Prof. Dr.; Madnarski, Sutikno (Kementerian Pengajian Tinggi Malaysia (KPTM), 2007-08-10)
      To achieve room temperature operation of single electron transistor (SET). To form single dot chanted for electron transport in SET via the Coufomb Blockade Oscillation (CBO) phenomenon.
    • Recognition of Limonene volatile using Interdigitated Electrode molecular imprinted polymer sensor 

      Huzein Fahmi, Hawari; Nurul Maisyarah, Samsudin; Mohd Noor, Ahmad, Prof. Dr.; Ali Yeon, Md Shakaff, Prof. Dr.; Supri., A. Ghani, Prof. Madya Dr.; Yufridin, Wahab, Dr.; Uda, Hashim, Prof. Dr. (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 ...
    • Reliability assessment and activation energy study of au and pd-coated cu wires post high temperature aging in nanoscale semiconductor packaging 

      Chong, Leong Gan; Uda, Hashim, Prof. Dr. (American Society of Mechanical Engineers (ASME), 2013)
      Wearout reliability and high temperature storage life (HTSL) activation energy of Au and Pd-coated Cu (PdCu) ball bonds are useful technical information for Cu wire deployment in nanoscale semiconductor device packaging. ...