Browsing by Author "Hasan, M.N."

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Battery-equivalent DC supply from leakage current: PV to transformer-less inverter topology
(Institute of Advanced Engineering and Science, 2016-12) Khan, M.N.H.,; Ahmad, K.J; Zahan, M.S.,; Hasan, M.N.
Solar panels are highly used for electricity generation, which can be gotten through switching-based transformer-less inverters. Hence, grid system with no galvanic-isolation, is taking the peak level in the world, which is effective and delivers power with enhanced efficiency. The PV generation presented here is for stand-alone system installed in remote areas on when and as the resulting power gets connected to electronic load installation instead of being tied to the grid. In this paper will be discussed the use of leakage current. Transformer-less inverter topology for exploring the issue of common mode (CMV) voltage development, which can be utilized as a Battery-Equivalent DC Supply after adding on places as when found suitable for such installations. © 2016, Institute of Advanced Engineering and Science. All rights reserved.
Development of an Advanced DNA Biosensor for Pathogenic Vibrio Cholerae Detection in Real Sample
(Biosensors and Bioelectronics, Elsevier, 2021-09-15) Ali, M.R.; Bacchu, M.S.; Setu, M.A.A.; Akter, S.; Hasan, M.N.; Chowdhury, F.T.; Rahman, M.M.; Ahommed, M.S.; Khan, M.Z.H.
Due to the epidemics of emerging microbial diseases worldwide, the accurate and rapid quantification of pathogenic bacteria is extremely critical. In this work, a highly sensitive DNA-based electrochemical biosensor has been developed to detect Vibrio cholerae using gold nanocube and 3-aminopropyltriethoxysilane (APTES) modified glassy carbon electrode (GCE) with DNA carrier matrix. Electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM) experiments were performed to interrogate the proposed sensor at each stage of preparation. The biosensor has demonstrated high sensitivity with a wide linear response range to target DNA from 10−8 to 10−14 (R2 = 0.992) and 10−14 to 10−27 molL−1 (R2 = 0.993) with a limit of detection (LOD) value of 7.41 × 10−30 molL−1 (S/N = 5). The biosensor also exhibits a selective detection behavior in bacterial cultures that belong to the same and distant genera. Moreover, the proposed sensor can be used for six consecutive DNA assays with a repeatability relative standard deviations (RSD) value of 5% (n = 5). Besides, the DNA biosensor shows excellent recovery for detecting V. cholerae in poultry feces, indicating that the designed biosensor could become a powerful tool for pathogenic microorganisms screening in clinical diagnostics, food safety, and environmental monitoring.
Development of an Advanced DNA Biosensor for Pathogenic Vibrio Cholerae Detection in Real Sample
(Biosensors and Bioelectronics, Elsevier, 2021) Ali, M.R.; Bacchu, M.S.; Akter, S.; Hasan, M.N.; Chowdhury, F.T.; Rahman, M.M.; Ahommed, M.S.
Due to the epidemics of emerging microbial diseases worldwide, the accurate and rapid quantification of pathogenic bacteria is extremely critical. In this work, a highly sensitive DNA-based electrochemical biosensor has been developed to detect Vibrio cholerae using gold nanocube and 3-aminopropyltriethoxysilane (APTES) modified glassy carbon electrode (GCE) with DNA carrier matrix. Electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM) experiments were performed to interrogate the proposed sensor at each stage of preparation. The biosensor has demonstrated high sensitivity with a wide linear response range to target DNA from 10−8 to 10−14 (R2 = 0.992) and 10−14 to 10−27 molL−1 (R2 = 0.993) with a limit of detection (LOD) value of 7.41 × 10−30 molL−1 (S/N = 5). The biosensor also exhibits a selective detection behavior in bacterial cultures that belong to the same and distant genera. Moreover, the proposed sensor can be used for six consecutive DNA assays with a repeatability relative standard deviations (RSD) value of 5% (n = 5). Besides, the DNA biosensor shows excellent recovery for detecting V. cholerae in poultry feces, indicating that the designed biosensor could become a powerful tool for pathogenic microorganisms screening in clinical diagnostics, food safety, and environmental monitoring.
International Law, Human Rights, and Public Health Emergencies During Disasters: A Developing Country Perspective
(Springer Nature, 2023-10-01) Alam, J.,; Hasan, M.N.
The interface between international law, human rights, and public health emergencies during a disaster is intricate. This chapter explores the dynamics of such an interface from a developing country perspective. It contends that despite the blunt provisions of international law the human rights in these countries are exceedingly susceptible to violation during such emergency and without accentuating the duty of solidarity under international law these countries would not be able to tackle the human rights violations for several reasons, including economic, sociopolitical, and strategic. The significance of this chapter lies in exploring the resilience of the duty of solidarity under international law to secure human rights in developing countries in both pre- and post-public health emergencies. © Springer Nature Singapore Pte Ltd. 2023.