Institute of Nano Electronic Engineering

Universiti Malaysia Perlis

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Sol–gel synthesis of Pd doped ZnO nanorods for room temperature hydrogen sensing applications

December 23, 2014 By Editor

Abstract – A sol-gel spin coating technique was described for the synthesis of Pd doped ZnO nanorods for hydrogen sensing applications. The nanorods were hexagonal in shape, 50–100 nm in diameter and uniform in distribution. They exhibited homogeneous surface morphology, c-axis orientation and excellent crystalline properties. The synthesized nanorods were used to sense and detect hydrogen in a homemade gas chamber. The fabricated sensor successfully detected as low as 40 ppm hydrogen at room temperature with a very low level of power supply (16.16 mA) under a mixed background. Dynamic and repeated responses were observed with a wide range of hydrogen concentrations (40–360 ppm) at 200 C. The developed sensor was at least 25 fold more sensitive over the literature documented Pd doped ZnO nanorods in detecting hydrogen at ambient temperature. The simplicity, low-cost, high sensitivity and high stability of the sensor materials suggested that the synthesized Pd doped ZnO nanorods could be used in hydrogen and chemical sensing devices where Pd-mediated catalysis is involved.

Keywords – Pd doped ZnO nanorods, Hydrogen sensors, Sol–gel, Spin coating

Corresponding Author: Uda Hashim
Corresponding Author’s Email: uda@unimap.edu.my

Full text: PDF

Filed Under: Publications Tagged With: Hydrogen sensors, Pd doped ZnO nanorods, Sol–gel, Spin coating

Prof. Dr. Uda Hashim memenangi anugerah tertinggi di BioInnovation Awards 2014

November 24, 2014 By Editor

Universiti Malaysia Perlis (UniMAP) terus mengungguli bidang penyelidikan negara dengan meraih anugerah khas tertinggi, Biotechnology Innovation Of The Year pada BioInnovation Awards 2014 yang diadakan di Pusat Konvensyen Kuala Lumpur (KLCC).

BioInnovation Awards 2014
Anugerah diperolehi menerusi produk Nano DNA Chips for Early Detection of Cervical Cancer oleh Prof. Dr. Uda Hashim dari Institut Kejuruteraan Nano Electronik (INEE) yang melayakkan beliau menerima wang tunai RM 4000, trofi dan sijil penyertaan.

Menurut Prof. Dr. Uda Hashim, beliau sama sekali tidak percaya akan meraih anugerah tertinggi tersebut selain turut mendapat pingat emas dalam pameran tersebut.

“Saya amat bersyukur kerana mencapai sasaran bagi mendapat pingat emas tetapi saya sama sekali tidak menyangka akan memperolehi anugerah tertinggi ini.

“Ini merupakan satu penghargaan yang besar buat saya dan anugerah ini menjadi penutup penyertaan saya dalam pameran penyelidikan peringkat kebangsaan bagi tahun ini,” katanya.

Tambahnya lagi, penyertaan beliau dalam pameran ini bukan semata-mata menyasarkan kutipan pingat sebaliknya beliau mahukan produk tersebut menjadi sebagai salah satu sumbangan bagi membantu masyarakat dan pengamal perubatan dalam pengesanan penyakit kanser pada peringkat awal.

Selain Prof. Uda, UniMAP turut meraih anugerah khas bagi kategori Most Promising Innovation menerusi produk Large – Scale Naturally Ventilated Tropical Greenhouse Structure For Commercial Harumanis Production in Perlis oleh Prof. IR. Dr. Rezuwan Kamaruddin dari Institut Agroteknologi dan seterusnya membawa pulang wang tunai RM 2000, trofi dan sijil penyertaan.

Malah produk yang sama juga turut menjadi penyumbang emas kedua UniMAP.

Pada penyertaan kali ini, UniMAP turut meraih empat perak dan lapan gangsa serta tempat ketiga pertandingan rekaan booth bagi kategori Bare Space.

Naib Canselor UniMAP, Brig. Jeneral Datuk Prof. Dr. Kamarudin Hussin berkata, pameran ini adalah pameran yang sengit di mana cara penjuriannya adalah lebih tegas dan terperinci.

“Produk yang kita pilih untuk mewakili UniMAP adalah produk-produk yang terbaik tetapi mungkin faktor pengalaman yang memisahkan mereka dengan kejayaan. Kebanyakan penyelidik UniMAP kali ini merupakan penyelidik yang baharu pertama kali menyertai pameran sebegini.

“Namun pemilihan mereka adalah berdasarkan kualiti produk yang dihasilkan dan saya percaya mereka telah mendapat pendedahan yang secukupnya sebagai persediaan bagi pameran yang lebih besar pada tahun hadapan,” katanya ketika dihubungi selepas keputusan pameran itu diumumkan.

BioInnovation Awards 2014 dianjurkan bersama dengan Biotechnology Asia oleh Malaysian Association of Research Scientist 2014 (MARS) dan Professional Trade Exhibition and Meeting Planners (PROTEMP) bermula 19 hingga 21 November 2014.

Sumber: Laman Web Rasmi UniMAP

Filed Under: News Tagged With: bioinnovation awards 2014, biotechnology innovation of the year

2-Day Course on Nano-Biosensor

October 17, 2014 By Editor

Date: November 24 & 25, 2014
Time: 9.00 a.m. – 5 p.m.
Venue: Institute of Nano Electronic Engineering, UniMAP

Course Background

Biosensor is a short form for “biological sensor”. The device is made up of a transducer and a biological element that may be an enzyme, an antibody or a nucleic acid. The bio-element interacts with the analyte being tested and the biological response is converted into an electrical signal by the transducer. Depending on their particular application, biosensors are also known as immunosensors, optrodes, resonant mirrors, chemical canaries, biochips, glucometers and biocomputers.

The Objectives

  • Provide an overview on the important aspects and principles of nano biosensor design, fabrication and characterization.
  • Assist the participants in understanding major fabrication steps and their underlying theories.
  • Exposure to the sophisticated and state-of-the art nano devices fabrication equipment and tools.

Any inquiry, kindly contact:
Dr Ramzan b Mat Ayub
Mobile: +6012-274 9986
Email: ramzan@unimap.edu.my

Filed Under: Events Tagged With: Biosensor, nano biosensor course

Functionalised zinc oxide nanotube arrays as electrochemical sensors for the selective determination of glucose

September 9, 2014 By Editor

Abstract – 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 length of ~1µm using a low-temperature aqueous chemical growth process. The prepared (ZnO-NT) arrays were further used as electrochemical enzyme-based glucose sensors through immobilisation of glucose oxidase by the physical adsorption method in conjunction with a Nafion coating. The electrochemical response of the sensor was found to be linear over a relatively wide logarithmic concentration range from 0.5×10-6 to 12×10-3 M. The proposed sensor showed a high sensitivity of 69.12 mV/decade with R=0.9934 for sensing of glucose. A fast-response time less than 4s with good selectivity, reproducibility and negligible response to common interferents such as ascorbic acid and uric acid prevailed.

Keywords – zinc oxide nanotube, chemical, glucose

Corresponding Author: Uda Hashim
Corresponding Author’s Email: uda@unimap.edu.my

Full text: PDF

Filed Under: Publications Tagged With: chemical, glucose, zinc oxide nanotube

Nanogaps Formation Using Scanning Electron Microscope (SEM) Based E-Beam Lithography (EBL) Technique

July 17, 2014 By Editor

Abstract – The semiconductor industry and wafer fabrication developments are driven by customer’s needs. Customers require faster, more reliable and lower cost chips. To achieve this, chip manufacturers and researchers have learned to reduce the size and dimension of component on the chip. The physical dimension of a feature on the chip is referred to as the feature size.[…]

Keywords – semiconductor, fabrication

Corresponding Author: Mohammad Nuzaihan Md Nor
Corresponding Author’s Email: m.nuzaihan@unimap.edu.my

Full text: PDF

Filed Under: Publications Tagged With: fabrication, semiconductor

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NEWS @ INEE

  • The 2nd International Conference on Nanotechnology & Materials Research (ICONMAR 2025)
  • Recognition of Excellence: Prof. Dr. Subash Chandra Bose Gopinath Among World’s Top 2% Scientists
  • STEM Open Day Kampung Sena @ UniMAP
  • INEE at STEM Carnival, Sekolah Menengah Sains Kubang Pasu
  • Research Visit to the Institute of Nano Electronic Engineering

EVENTS & ACTIVITIES

  • Visit by SJK (C) Nan Kwang Students
  • INEE Nano Roadshow – Series 4
  • NanoBiosensor Workshop 2024
  • Invitation To Nanobiosensor Workshop 2024
  • NANO ROADSHOW @ PSNCWU
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Institute of Nano Electronic Engineering, Universiti Malaysia Perlis
Lot 106, 108 & 110, Blok A, Taman Pertiwi Indah,
Jalan Kangar-Alor Setar, Seriab 01000 Kangar, Perlis, Malaysia
Tel: +604-979 8581 Fax: +604-979 8578 Email: webmaster.inee@unimap.edu.my

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