Deltin 7

Journal: Bangladesh Journal of Physics, Publisher: Bangladesh Physical Society

Abstract: The controlled transport of molecules through cell membrane nanopores holds significant promise for various biomedical applications, ranging from gene transfection and cancer chemotherapy to transdermal drug delivery. Among the diverse array of membrane-active agents, antimicrobial peptides (AMPs) have garnered substantial interest due to their antibacterial and antifungal properties. Magainin 2, initially uncovered within the African clawed frog Xenopus laevis, is one such AMP known to interact with lipid bilayers that lead pore formation induced by membrane-active agents like magainin-2. In this study, we employed simulation techniques using COMSOL Multiphysics to investigate molecular transport of Calcein, Texas-Red Dextran 3000 (TRD-3k), TRD-10k, and AF-SBTI through nanoscale multipores of varying sizes, assessing the impact of both pore diameter and molecular size. Our simulations reveal that the rate constant of molecular transport decreases with increasing fluorescent probe size and pore diameter which comply with experimental observations of inside-to-outside probe leakage.

Journal: Barishal Deltin 7 Aviator গেম টাকা ইনকাম Journal of Science and Engineering,

Journal: Journal of Science & Technology Research,   Publisher: Ministry of Science & Technology

Abstract: Revealing electronically excited states across organic/organic interfaces is important to speculate the charge photo-generation mechanisms in organic devices. As organic solar cells are large and unorganized systems so it is very tough to access it using conventional quantum chemical approaches. To unearth the charge separation mechanism a massive scale of excited states should be considered. For this purpose in this study, we have applied recently developed fragment molecular orbital (FMO) method that can effectively consider large-scale molecular aggregates. In our model, we have treated for different configurations of pentacene/C60 bilayer hetero-junction structures. Here, we have also discussed the charge delocalization effect, structural deformations. The measured energy dynamics low-lying interfacial CT states are in well match with experimental reports.

Journal: Bangladesh Journal of Chemical Society  

Journal: Bangladesh Journal of Physics, Publisher: Bangladesh Physical Society

Abstract: Graphene oxide (GO) and its reduced form have recently attracted significant interest due to their outstanding physical and chemical characteristics, hence finding large applications in fields such as electronics and optoelectronics. The paper portrayed herein presents a simple and cost-effective route to obtaining high-quality GO through electrochemical exfoliation methods. The pre-treated Graphite powder was soaked in concentrated sulfuric acid and nitric acid in a 1:1 ratio, followed by washing and neutralization. Thereafter, it was made into paper with the aid of 1% polyethylene. The sheets were suspended in electrolyte solutions of KCl and NaCl at 10.0V, 12.5V, and 15.0V to make sure the swelling of the sheets occurred. Boiling and centrifugation are done for exfoliation and purification. Characterization of GO was performed using FT-IR, FT-Raman, and UV-vis spectroscopy. It will be verified that the voltage and electrolyte type will tune the properties and characteristics of as-prepared GO effectively. The process results in the scale-up and environmentally friendly process for GO production, making the product efficient for applications in so many high-tech industries.

Journal: Bangladesh Journal of Chemical society, 

Abstract: The condensation polymerization of different types of bifunctional monomers containing diacylhydrazine group is performed with different acid chlorides to prepare polyester containing diacylhydrazine moiety as repeating unit. On treating these polymers with sodium hypochlorite solution, they are oxidized and degraded to corresponding dicarboxylic acid with the evolution of N 2 gas. In addition, our synthesized polymer was found to be inert under normal environmental conditions. The synthesized polymers showed high thermal stability. In comparison to polymers with flexible repeating unit, those with rigid repeating unit have higher thermal stability, as demonstrated by the TGA data. The synthesized polymers were found to be insoluble in most of the common solvents.

Islam, A., & Islam, M. S. (2016). Electoral boundary delimitation in Bangladesh: Challenges and options. Bangladesh Political Science Review, Deltin 7 Aviator গেম টাকা ইনকাম of Deltin 7 bangladesh, 12(1), 186–199.

Islam, M. S. (2020). The challenges and strategies of sustainable cities in Bangladesh: A case study on Barishal City Corporation. The Journal of Rural Development, Bangladesh Academy for Rural Development (BARD), 43(1), 125–158.