Rupa Chakraborty, Anupama Asthana, Ajaya Kumar Singh, Bhawana Jain et al.
Environmental pollution, particularly from heavy metal ions in the wastewater, is one of the most serious concerns of the world. In the pursuit of remedial action, various conventional methods such as ion exchange, chemical precipitation, coagulation, membrane separation, reverse osmosis, and adsorp...
Sushma Yadav, Anupama Asthana, Ajaya Kumar Singh, Rupa Chakraborty et al.
In this work, we successfully synthesized novel polymer gel beads based on functionalized iron oxide (Fe3O4), activated charcoal (AC) particles with β-cyclodextrin (CD) and sodium alginate (SA) polymer (Fe3O4/CD/AC/SA), by a simple, reproducible and inexpensive method. These beads proved to be versa...
Sushma Yadav, Anupama Asthana, Rupa Chakraborty, Bhawana Jain et al.
New magnetic iron oxide (Fe3O4)/activated charcoal (AC)/β-cyclodextrin (CD)/sodium alginate (Alg) polymer nanocomposite materials were prepared by direct mixing of the polymer matrix with the nanofillers. The obtained materials were utilized as nano-adsorbents for the elimination of methylene blue (...
Soumen Chakraborty, Asish K. Mukhopadhyay, Rupak K. Bhadra, Amar N. Ghosh et al.
The virulence of a pathogen is dependent on a discrete set of genetic determinants and their well-regulated expression. The ctxAB and tcpA genes are known to play a cardinal role in maintaining virulence in Vibrio cholerae, and these genes are believed to be exclusively associated with clinical stra...
Kaiser Ahmed Rocky, Animesh Pal, Tahmid Hasan Rupam, Nasruddin Nasruddin et al.
In this study, consolidated composite adsorbents comprising highly porous zeolite of type AQSOA-Z02 and two types of graphene nanoplatelets (GNPs), namely H25-GNPs and M25-GNPs, are developed to enhance the performance of a thermally powered adsorption heat pump. The thermophysical properties such a...
Rupa Chakraborty, Sutapa Sinha, Asish K. Mukhopadhyay, Masahiro Asakura et al.
Microbiology Society journals contain high-quality research papers and topical review articles. We are a not-for-profit publisher and we support and invest in the microbiology community, to the benefit of everyone. This supports our principal goal to develop, expand and strengthen the networks avail...
Rupa Chakraborty, Anupama Asthana, Ajaya Kumar Singh, Sushma Yadav et al.
Modified chicken feathers (MCFs) were used as adsorbents for the removal of Co(II), Cu(II), Fe(II) and Ni(II) heavy metal ions from water by varying pH, adsorbent concentration and time. MCFs were characterized using Fourier Transform Infrared (FTIR) spectroscopy, Scanning Electron Microscopic (SEM)...
Tahmid Hasan Rupam, Farhana Jesmin Tuli, Israt Jahan, Mujib L. Palash et al.
Sutapa Sinha, Rupa Chakraborty, Keya De, Asis Khan et al.
Between December 1999 and December 2000, teams from the National Institute of Cholera and Enteric Diseases, Calcutta, India, examined eight outbreaks of cholera, which occurred in different parts of the country distant from each other. In two of these outbreaks each, only V. cholerae O1 biotype ElTo...
Tahmid Hasan Rupam, Mujib L. Palash, Anutosh Chakraborty, Bidyut Baran Saha
Mujib L. Palash, Tahmid Hasan Rupam, Animesh Pal, Anutosh Chakraborty et al.
This study presents a thermodynamic formulation to capture the relationship between the adsorption interaction energy and adsorbent-morphological properties, which can be further extended into surface coverage. Employing the inverse gas chromatography method, the adsorbate uptakes are measured in He...
Rupa Chakraborty, Anupama Asthana, Ajaya Kumar Singh, Renu Verma et al.
In the present study, chicken feathers (CFs), obtained from animal waste, were used as bio-adsorbent for the removal of hazardous Cr(VI) ions from aqueous solutions. Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy-dispersive x-ray spectroscopy (EDX), x-ray ...
Rupa Chakraborty, Anupama Asthana, Ajaya Kumar Singh, Rameshwar Adhikari et al.
Barbara Mueller, K Abdul, S Jaysinghe, E Chandana et al.
Unfortunately, Nepal's current arsenic issueconcerning ground water was recognized much later than in other countries of South-Asia (e.g. West Bengal (India), Bangladesh, Cambodia, Vietnam, China). Nepal did not seem to be much affected by As poisoning ground water hosted by quaternary alluvial sedi...
S Parveen, Mohammad Nurul Islam, B Adhikery, Mha Amin et al.
An efficient and reproducible in vitro regeneration protocol for a popular chili variety Bogurar jhal morich was established. For regeneration of shoots two different explants such as cotyledonary leaf and cotyledonary node were employed using various concentrations and combinations of different gro...