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Green synthesis of silver nanoparticles using glucan from mushroom and study of antibacterial activity.
- I. Sen, A. Mandal, S. Chakraborti, B. Dey, R. Chakraborty, S. S. Islam
- Chemistry, Medicine
- International journal of biological…
- 1 November 2013
This particular dose of AgNPs-glucan conjugates in combination with each of the four antibiotics (ampicillin, azithromycin, cefepime and tetracycline) to which K. pneumoniae YSI6A was resistant showed synergistic effect to inhibit almost 100% bacterial growth. Expand
Incidence of class 1 integrons in multiple antibiotic-resistant Gram-negative copiotrophic bacteria from the River Torsa in India.
The presence of class 1 integrons in multiple-antibiotic-resistant (MAR) Gram-negative copiotrophic bacteria from the River Torsa in India was detected using a polymerase chain reaction (PCR)-based… Expand
Quorum sensing in metal tolerance of Acinetobacter junii BB1A is associated with biofilm production.
Generation of a metal-sensitive and adhesion-deficient mutant by transposition of Tn5-mob in the A. junii genome has putatively confirmed the association of metal tolerance with the production of biofilm. Expand
Guava Leaf Extract Inhibits Quorum-Sensing and Chromobacterium violaceum Induced Lysis of Human Hepatoma Cells: Whole Transcriptome Analysis Reveals Differential Gene Expression
This study proposes GLE as a QS inhibitor (QSI) with the ability to attenuate virulence without affecting growth, and is the first report which provides with a plausible set of candidate genes regulated by the QS system in the neglected pathogen C. violaceum. Expand
Understanding the patterns of antibiotic susceptibility of bacteria causing urinary tract infection in West Bengal, India
Fourth generation cephalosporin and macrolides seems to be the choice of drug in treating UTIs in Eastern India and improved maintenance of infection incident logs is needed in Eastern Indian hospitals in order to facilitate regular surveillance of the occurrence of antibiotic resistance patterns. Expand
16S rRNA gene sequence analyses of the metagenome derived from waters of river Mahananda at Siliguri: An approach to understand bacterial diversity
Abundance of Comamonads among Betaproteobacteria indicated transition to eutrophic state, confirming borderline healthy state of Mahananda River at Siliguri, India, suggesting the usefulness of this technique in uncovering microbial diversity in river water. Expand
Radical Scavenging Activities of Lagerstroemia speciosa (L.) Pers. Petal Extracts and its hepato-protection in CCl4-intoxicated mice
- B. K. Tiwary, S. Dutta, +6 authors R. Chakraborty
- BMC Complementary and Alternative Medicine
- 18 January 2017
In vitro cytotoxicity tests have shown that the flower extract did not affect growth and survivability of the cell lines, and left beyond doubt that a flower of L. speciosa is a reservoir of antioxidant and hepatoprotective agents capable of reversing the damage inflicted by CCl4-intoxication. Expand
The in vitro cytotoxic activity of ethno-pharmacological important plants of Darjeeling district of West Bengal against different human cancer cell lines
- B. K. Tiwary, S. Bihani, Anoop Kumar, R. Chakraborty, R. Ghosh
- BMC Complementary and Alternative Medicine
- 7 February 2015
This is perhaps the first report of screening of traditional medicinal plants from Darjeeling district in West Bengal, India, for their cytotoxic activity against three human cancerous cell lines MCF7, HeLa and HepG2. Expand
Serratia ureilytica sp. nov., a novel urea-utilizing species.
- B. Bhadra, P. Roy, R. Chakraborty
- Biology, Medicine
- International journal of systematic and…
- 1 September 2005
A Gram-negative, rod-shaped, urea-dissolving and non-spore-forming bacterium, designated strain NiVa 51(T), was isolated from water of the River Torsa in Jalpaiguri district, West Bengal, India and represents a novel species, for which the name Serratia ureilytica sp. Expand
Genome Implosion Elicits Host-Confinement in Alcaligenaceae: Evidence from the Comparative Genomics of Tetrathiobacter kashmirensis, a Pathogen in the Making
In the light of this evolutionary link, host-adaptation of Taylorella clearly appears to be the aftereffect of genome implosion in another member of the same bottleneck, representing a unique transition state where genome self-degeneration has started comprehensively but selective host-confinement has not yet set in. Expand