Browsing by Author "Qazi Muhammad, Humayun"
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Area-selective ZnO thin film deposition on variable microgap electrodes and their impact on UV sensing
Qazi Muhammad, Humayun; Muhammad Kashif, Muhammad Faroow; Uda, Hashim, Prof. Dr. (Hindawi Publishing Corporation, 2013)ZnO thin films were deposited on patterned gold electrodes using the sol-gel spin coating technique. Conventional photolithography process was used to obtain the variable microgaps of 30 and 43 μm in butterfly topology by ... -
A brief review of the current technologies used for the fabrication of metal-molecule-metal junction electrodes
Qazi Muhammad, Humayun; Uda, Hashim, Prof. Dr. (Scientific.Net, 2012-12)Fabrication techniques for Metal-molecule-metal junction electrodes suitable to study electron tunneling through metal junctions are reviewed. The applications of current technologies such as mechanical break junction, ... -
The fabrication methods of Metal-molecule-metal junction electrode current state-of-art
Qazi Muhammad, Humayun; Uda, Hashim, Prof. Dr. (Universiti Malaysia Perlis (UniMAP), 2012-06-18)Fabrication techniques for Metal-molecule-metal junction electrode suitable to study electron tunneling through metal junctions are reviewed. The applications of current strategies such as mechanical breakjunction, ... -
Fabrication of nanowire using ash trimming technique
Tijjani Adam, Shuwa; Uda, Hashim, Prof. Dr.; Leow, Pei Ling; Qazi Muhammad, Humayun (Trans Tech Publications, 2013)The paper present a report on fabrication of Nanowire using plasma oxidation, we monitor changes by studying the morphology and Δw/Δh, the study also revealed that the proposed fabrication method could potentially be used ... -
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 ... -
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 ... -
Parametric study and thickness evaluation of photoresist development for the formation of microgap electrodes using surface nanoprofiler
Qazi Muhammad, Humayun; Uda, Hashim, Prof. Dr. (Scientific.Net, 2012-12)A compact nanolaboratory on single chip is one of the challenging tasks for future reproductively of sensitive and selective lab-on-chip. This paper reports a simple and controllable technique for patterning microgap ... -
Selective growth of ZnO nanorods on microgap electrodes and their applications in UV sensors
Qazi Muhammad, Humayun; Muhammad Kashif, Muhammad Faroow; Uda, Hashim, Prof. Dr.; Ahsanulhaq, Qurashi (Springer, 2014-01)Selective area growth of ZnO nanorods is accomplished on microgap electrodes (spacing of 6μm) by using a facile wet chemical etching process. The growth of ZnO nanorods on a selected area of microgap electrode is carried ... -
State of the art: PDMS surface treatment for the hydrophilization and hydrophobicity
Tijjani Adam, Shuwa; Uda, Hashim, Prof. Dr.; Foo, Kai Loong; Qazi Muhammad, Humayun; M., Kashif (Universiti Malaysia Perlis (UniMAP), 2012-06-18)As advancement in nano laboratory on chip is moving at the speed of light, the Polydimethylsiloxane (PDMS) is frequently used to build microfluidic devices PDMS due to its ease of handling , easy fabrication, transparency ... -
ZnO thin film deposition on butterfly shaped electrodes for ultravioletsensing applications
Qazi Muhammad, Humayun; Muhammad Kashif, Muhammad Faroow; Uda, Hashim, Prof. Dr. (Elsevier GmbH, 2013-12)ZnO thin film was deposited on patterned gold electrodes using sol-gel spin coating technique. Conven-tional photo-lithography with wet etching process was used to create butterfly shaped 13-m gap fromzero gap chrome mask. ...