Zisun Ahmed

Zisun Ahmed
Iowa State University | ISU · Department of Chemical and Biological Engineering

Master of Philosophy

About

10
Publications
1,106
Reads
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26
Citations
Additional affiliations
March 2021 - present
Military Institute of Science and Technology
Position
  • Lecturer
January 2020 - February 2021
Green University of Bangladesh
Position
  • Senior Lecturer
June 2019 - August 2019
The Hong Kong University of Science and Technology
Position
  • Research Assistant
Education
September 2016 - August 2019
April 2013 - February 2015
University of Dhaka
Field of study
  • Biomedical Physics and Technology
October 2008 - December 2012
Ahsanullah University of Science & Tech
Field of study
  • Electrical and Electronic Engineering

Publications

Publications (10)
Poster
Full-text available
Summary of the Research achievement of the EEE Department of Green University of Bangladesh on the year 2020
Article
Full-text available
This paper proposes an improved harmonic distorted modified triangular carrier-based multicarrier pulse width modulation for generating the switching pulses of a multilevel inverter. This modified triangular wave consists of a triangular wave bearing a close resemblance to an ‘M’ shaped wave. The design of this carrier signal has been optimized to...
Article
Full-text available
Ion concentration polarization has received much interest in the last decade for lab-on-a-chip applications, primarily preconcentration of biomolecules and water desalination. Studying the basic phenomenon in microfluidics has also generated new knowledge, which could be pivotal in the design of novel devices. Many studies, however, have focused on...
Conference Paper
Full-text available
Here we report the first nanofluidic memristor based on the principle of ion concentration polarization (ICP). The nanofluidic device induces ICP through phosphosilicate glass nanocapillaries integrated on silicon using standard photolithography and semiconductor processing techniques. The current-voltage characteristic exhibits a pinched-hysteresi...
Article
Full-text available
This paper reports the very first nanofluidic memristor based on the principle of ion concentration polarization (ICP). The ICP is induced through highly-ordered cylindrical nanochannels. These so-called nanocapillaries are formed within a glass layer on silicon through thermal reflow process and low-resolution lithography. The current-voltage plot...
Thesis
Full-text available
Nanometer-scale fluidic channels have drawn tremendous research attention in recent years due to their unique electrokinetic properties and immense potential for developing novel applications. Surface charge induced electric double layer (EDL) has been demonstrated to regulate ion transport in nanochannel, especially at low ionic strength. Beyond a...
Conference Paper
Full-text available
We introduce a robust nanofluidic device featuring a highly ordered array of glass nanopores integrated on silicon using only low-resolution photolithography and standard fabrication tools. The device is built by sandwiching nanopore structure between a buried silicon channel and a cover channel. We also report on the ion concentration polarization...
Conference Paper
Full-text available
This paper reports suppression of overlimiting current, following the onset of ion concentration polarization (ICP), through integrated glass nanocapillaries imposing a two dimensional (2-D) confinement at a nominal diameter of 60 nm. The nanocapillaries are realized without involving advanced lithography techniques. The current-voltage (I-V) measu...
Conference Paper
In this paper, performance of a novel analytic model of direct sequence code division multiple accesses (DS-CDMA) using diversity with maximal ratio combining (MRC) scheme is observed under the influence of multipath Rayleigh fading and multi-access interference (MAI) varying different system parameters and properties of PN sequences. The analysis...

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