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13 results on '"Shafiul Hossain"'

1. Jute cellulose nanocrystal/poly(N,N-dimethylacrylamide-co-3-methacryloxypropyltrimethoxysilane) hybrid hydrogels for removing methylene blue dye from aqueous solution

Author

Shafiul Hossain, Md. Shahruzzaman, Sumaya F. Kabir, Md. Shirajur Rahman, Sabrina Sultana, Abul K. Mallik, Papia Haque, Makoto Takafuji, and Mohammed Mizanur Rahman

Subjects
Jute, Cellulose nanocrystal, Dimethylacrylamide, Silane, Hydrogel, Methylene blue, Materials of engineering and construction. Mechanics of materials, TA401-492
Abstract

Cellulose nanocrystals (CNCs) extracted from jute fibers are moderately high in length (up to 1200 nm) and diameter (up to 90 nm). Poly(N,N-dimethylacrylamide-co-3-methacryloxypropyltrimethoxysilane) (pSiDm) is a custom made copolymer with trimethoxy silane groups at one end which facilitates to react with cellulose in an aqueous solution. A very simple, efficient, rapid, and eco-friendly method was developed to prepare j-CNC reinforced pSiDm hydrogel to remove methylene blue (MB) dye from an aqueous solution. The reaction between j-CNCs and pSiDm in the hydrogel was revealed by the increased intensity ratio of –OH band to C–H band and shifting of a peak for C=O from 1604 cm−1 to 1608 cm−1 in the FT-IR spectrum of the hydrogel compared to those of the copolymer. Glass transition temperature of the copolymer increases from 99 to 111 °C after being applied into the hydrogel. The prepared hydrogel showed a significant swelling at a ratio of 16 g/g in deionized water. In good accordance with the Langmuir adsorption isotherm, a maximum adsorption value of MB onto the hydrogel was achieved 131.58 mg/g. Kinetic studies of the adsorption process fit well with a pseudo-second-order reaction model. The j-CNCs/pSiDm hydrogel is a moderately resilient and completely biodegradable material to be utilized for the adsorption of cationic toxic materials from waste effluent.

Published
2021
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2. Advanced CNC/PEG/PDMAA Semi-IPN Hydrogel for Drug Delivery Management in Wound Healing

Author

Samia Afrin, Md. Shahruzzaman, Papia Haque, Md. Sazedul Islam, Shafiul Hossain, Taslim Ur Rashid, Tanvir Ahmed, Makoto Takafuji, and Mohammed Mizanur Rahman

Subjects
semi-IPN, hydrogel, drug delivery, wound healing, Science, Chemistry, QD1-999, Inorganic chemistry, QD146-197, General. Including alchemy, QD1-65
Abstract

A Semi Interpenetrating Polymer Network (semi-IPN) hydrogel was prepared and loaded with an antibiotic drug, gentamicin, to investigate the wound healing activity of this system. The semi-IPN hydrogel was synthesized by combining natural polymer cellulose nanocrystal (CNC) and synthetic polymer polyethylene glycol (PEG) and poly (N,N′-dimethyl acrylamide) (PDMAA), which was initially added as a monomer dimethyl acrylamide (DMAA). CNC was prepared from locally obtained jute fibers, dispersed in a PEG-NaOH solvent system and then mixed with monomer DMAA, where polymerization was initiated by an initiator potassium persulphate (KPS) and cross-linked by N,N′-methylenebisacrylamide (NMBA). The size, morphology, biocompatibility, antimicrobial activity, thermal and swelling properties of the hydrogel were investigated by different characterization techniques. The biocompatibility of the hydrogel was confirmed by cytotoxicity analysis, which showed >95% survival of the BHK-21, Vero cell line. The drug loaded hydrogel showed antimicrobial property by forming 25 and 23 mm zone of inhibition against Staphylococcus aureus (gram-positive) and Escherichia coli (gram-negative) bacteria, respectively, in antimicrobial analysis. At pH 5.5, 76% of the drug was released from the hydrogel within 72 h, as observed in an in vitro drug release profile. In an in vivo test, the healing efficiency of the drug loaded hydrogel was examined on a mice model with dorsal wounds. Complete healing of the wound without any scar formation was achieved in 12 days, which revealed excellent wound healing properties of the prepared drug loaded semi-IPN hydrogel. These results showed the relevance of such a system in the rapid healing of acute wounds.

Published
2022
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4. Jute cellulose nanocrystal/poly(N,N-dimethylacrylamide-co-3-methacryloxypropyltrimethoxysilane) hybrid hydrogels for removing methylene blue dye from aqueous solution

Author

Papia Haque, Sumaya F. Kabir, Mohammed M. Rahman, Shafiul Hossain, Md. Shirajur Rahman, Sabrina Sultana, Md. Shahruzzaman, Abul K. Mallik, and Makoto Takafuji

Subjects
Materials science, Materials Science (miscellaneous), 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Jute, Biomaterials, chemistry.chemical_compound, symbols.namesake, Adsorption, Copolymer, Silane, Cellulose, Materials of engineering and construction. Mechanics of materials, Cellulose nanocrystal, Methylene blue, Aqueous solution, Langmuir adsorption model, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Electronic, Optical and Magnetic Materials, Dimethylacrylamide, Hydrogel, chemistry, Chemical engineering, Self-healing hydrogels, TA401-492, Ceramics and Composites, symbols, 0210 nano-technology, Glass transition
Abstract

Cellulose nanocrystals (CNCs) extracted from jute fibers are moderately high in length (up to 1200 nm) and diameter (up to 90 nm). Poly(N,N-dimethylacrylamide-co-3-methacryloxypropyltrimethoxysilane) (pSiDm) is a custom made copolymer with trimethoxy silane groups at one end which facilitates to react with cellulose in an aqueous solution. A very simple, efficient, rapid, and eco-friendly method was developed to prepare j-CNC reinforced pSiDm hydrogel to remove methylene blue (MB) dye from an aqueous solution. The reaction between j-CNCs and pSiDm in the hydrogel was revealed by the increased intensity ratio of –OH band to C–H band and shifting of a peak for C=O from 1604 cm−1 to 1608 cm−1 in the FT-IR spectrum of the hydrogel compared to those of the copolymer. Glass transition temperature of the copolymer increases from 99 to 111 °C after being applied into the hydrogel. The prepared hydrogel showed a significant swelling at a ratio of 16 g/g in deionized water. In good accordance with the Langmuir adsorption isotherm, a maximum adsorption value of MB onto the hydrogel was achieved 131.58 mg/g. Kinetic studies of the adsorption process fit well with a pseudo-second-order reaction model. The j-CNCs/pSiDm hydrogel is a moderately resilient and completely biodegradable material to be utilized for the adsorption of cationic toxic materials from waste effluent.

Published
2021
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8. List of contributors

Author

Ahmed S. Abo Dena, Caleb Acquah, Tanvir Ahmed, Azilah Ajit, Yahya S. Al-Awthan, Tânia Albuquerque, Sukumaran Anil, Nuvia Marina Apolonio–Hernandez, Leonard Ionut Atanase, Omar Bahattab, Anindita Behera, Muhammad Bilal, Branko Bugarski, A.C. Campa-Mada, Ireri Alejandra Carbajal-Valenzuela, E. Carvajal-Millan, Long Chen, Wai Teng Cheng, Custodiana A. Colmenarez Lobo, Diana Costa, Eduardo Costa, Pandurang Appana Dalavi, Michael K. Danquah, Y. De Anda-Flores, Harshal Deshmukh, Amal Kumar Dhara, Ibrahim M. El-Sherbiny, Rúben Faria, Ana Angelica Feregrino-Pérez, M.D. Figueroa-Pizano, D.A.S. Gamage, Beatriz González-Arias, Natanamurugaraj Govindan, Ramón Gerardo Guevara-González, Diana Vanesa Gutierrez-Chavez, Md Saquib Hasnain, Shafiul Hossain, Muhammad Imran, Hafiz M.N. Iqbal, Jaison Jeevanandam, Alejandra Jimenez-Hernandez, Zhengyu Jin, Sumaya F. Kabir, Krishnan Kanny, Jaya Lakkakula, J. Lizardi-Mendoza, Manuela Machado, T. Madhujith, Gaanty Pragas Maniam, Verónica E. Manzano, A.L. Martínez-López, K.G. Martínez-Robinson, David Julian McClements, Ming Miao, Milan Milivojevic, Md. Minhajul Islam, Aurelie Sarah Mok Tsze Chung, Mohammad S. Mubarak, Naveed Muhammad, Hira Munir, Sesha Subramanian Murugan, Amit Kumar Nayak, Ana R. Neves, Ahmed Olatunde, Ivana Pajic-Lijakovic, Dilipkumar Pal, Aristeidis Papagiannopoulos, Manuela Pintado, Marcel Popa, Sarmad Ahmad Qamar, Telma Quintela, Stefania Racovita, Hamza Rafeeq, Mohd Hasbi Ab. Rahim, Ashiqur Rahman, Mohammed Mizanur Rahman, Khushboo Raj, Ajay Vasudeo Rane, A. Rascón-Chu, Abdur Rauf, Evangelina Repetto, Enrique Rico-García, Supriyo Saha, Md. Sazedul Islam, Md. Shahruzzaman, Sara Silva, Ângela Sousa, Ahmad Ziad Sulaiman, Sabrina Sultana, Joash Ban Lee Tan, J. Tanori-Cordova, Yong Kiat Teo, Himja Tiwari, Irineo torres-Pacheco, Tabussam Tufail, Silvia Vasiliu, Jayachandran Venkatesan, Eleni Vlassi, Nilesh Shirish Wagh, N.E. Wedamulla, Deepti Yadav, and Zhongyu Yang

Published
2022
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11. Contributors

Author

Samia Afrin, Tariq Aftab, Bilal Ahmad, Khan Bilal Mukhtar Ahmed, Mahabub Alam, Md. Jahangir Alam, Akbar Ali, Salma Anika, Sunil Dalvi, Prem Kumar Dantu, Nelida L. del Mastro, Rasheda Begum Dina, Ahmad Faraz, Papia Haque, Wahida Haque, Mohammad Afzal Hossain, Shafiul Hossain, M. Idrees, Md. Didarul Islam, Dinesh Ithape, Ajmat Jahan, Sumaya F. Kabir, Nishat Anzum Kanak, M. Masroor A. Khan, Nausheen Khanam, Rifat Ara Masud, Mohammad Mukarram, Nasima Akter Mukta, M. Naeem, Ashiqur Rahman, Md. Wasikur Rahman, Md. Sohel Rana, Yawar Sadiq, Asfia Shabbir, Md. Shahruzzaman, Jahid Hasan Shourove, Husna Siddiqui, Sabrina Sultana, Penna Suprasanna, Moin Uddin, Kartiki Wani, and Farzana Yeasmin

Published
2022
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12. Plastic pollution in Bangladesh: A review on current status emphasizing the impacts on environment and public health

Author

Shafiul Hossain, Anisur Rahman, Sajib Kumar Mohonta, and Myisha Ahmed Chowdhury

Subjects
Microplastics, medicine.medical_specialty, Environmental Engineering, 010504 meteorology & atmospheric sciences, Coronavirus disease 2019 (COVID-19), Public health, 010501 environmental sciences, 01 natural sciences, medicine, Environmental science, Current (fluid), Plastic pollution, Environmental planning, 0105 earth and related environmental sciences
Abstract

Invention of the plastics has largely been considered as a boon for the modern life due to their light weight, high strength, and versatile application while being cheaper than other alternative materials. However, with the low biodegradability, over consumption, and widespread mismanagement, plastics have now become ubiquitous in all the environmental compartments and are held responsible for causing enormous pollution to air, soil, and water bodies. Bangladesh is no different from this global scenario, though there has been a little effort to assess the amount of plastic waste and its consequence which is necessary to encounter this mounting threat effectively. Taking this into consideration, current study investigates the impacts of plastic pollution including its most threatening formmicroplastics on environment and human health in Bangladesh. The study is based on critical review of existing literatures from the global perspective. It has been found that a major percentage of the used plastic is mismanaged in Bangladesh, posing a great threat to the environment and human health. This article also put forward some recommendations to tackle this pervasive problem alongside the measures already taken by the government. Overall, this work is aimed at creating an urge among the researchers to study the plastic pollution in Bangladesh comprehensively and raising a concern among the appropriate authorities to develop policies and impose necessary actions against plastic pollution before it is too late.

Published
2020
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13. Calculation of fuel burnup and excess reactivity using TRIGLAV code for the BAEC TRIGA research reactor

Author

Abdullah-Al-Mahmud, Md. Abdul Malek Soner, Anisur Rahman, Md. Mizanur Rahman, M. A. Ali, Shafiul Hossain, and Pretam Kumar Das

Subjects
Source code, Nuclear engineering, media_common.quotation_subject, Nuclear reactor, TRIGA, law.invention, Nuclear Energy and Engineering, law, Code (cryptography), Environmental science, Reactivity (chemistry), Research reactor, media_common, Burnup
Abstract

The TRIGLAV computer code, a computation analysis package tool, was used for the first time in BAEC TRIGA research reactor (BTRR) to calculate burnup and excess reactivity. Since its commissioning ...

Published
2020
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