An eco-benign synthesis of silver nanoparticles using Aegle marmelos L. bark extract and evaluation of their DNA cleavage, DNA binding, antioxidant and antibacterial activity Anindita De, Preeti Jain, Amit Kumar Manna, Vivek Srivastava, Riya Das Inorganic and Nano Metal Chemistry, 2024 The present study demonstrates green chemistry assisted synthesis of silver nanoparticles (B-AgNPs) in aqueous medium employing bark extract of Aegle marmelos L., their characterization and biological applications. B-AgNPs were synthesized at 70 °C with 0.005 M AgNO3 was reduced with 5.0 mL of bark extract for 20 min and monitored with UV-Vis spectrum. The size, charge, stability, and polydispersity index of B-AgNPs were determined using dynamic light scattering (DLS) and zeta potential analysis. Scanning electron microscope and high resolution transmission electron microscopy images showed that spherical-shaped BAgNPs were formed with average size of 20 nm along with a hydrodynamic diameter ranging from 5 to 100 nm in two subpopulations as evaluated by DLS analysis. Fourier transmission infrared spectrum ascertain the functional groups and purity while energy dispersive X-ray spectroscopy study confirms the elemental composition of BAgNP. B-AgNPs remarkably exhibit DNA cleavage activity against pUC19 and binding activity with CT-DNA. The growth inhibition potential of BAgNPs against Staphylococcus aureus, Escherichia Coli, and Pseudomonas aeruginosa bacterial strains was tested and they exhibited minimum inhibitory concentration value 10 μM against E. coli lower than the plant extract. DPPH assay in different concentrations of BAgNPs revealed the antioxidant potential between 41.3% and 90.2%.
Hydrogen bonded molecular rectangle of N,Ń-bis(3-quinolylmethylene)diphenylethanedionedihydrazone Indian Journal of Chemistry Ijc, 2022 The title compound, N , N ¢ -bis (3-quinolylmethylene) diphenylethanedionedihydrazone ( I ) (molecular formula, C 34 H 24 N 6 ) has been synthesized by the reaction of quinoline 3-carboxaldehyde and diphenylethanedionedihydrazone in 2:1 molar ratio. The molecular structure has been characterized by room-temperature single-crystal X-ray diffraction which reveals that two quinoline moieties are disposed nearly perpendicularly around the central C-C bond giving an ‘L’ shape to the molecule. This particular geometry gives rise to the hydrogen bonded supramolecular rectangle of two self-complementary molecules. These supramolecular units are further assembled by p-p interaction.
Optical sensors for cysteine: A brief overview Cysteine Sources Uses and Health Effects, 2021
Plasmonic sensing of Hg(II), Cr(III), and Pb(II) ions from aqueous solution by biogenic silver and gold nanoparticles Anindita De, Ankita Kumari, Preeti Jain, Amit Kumar Manna, Gaurab Bhattacharjee Inorganic and Nano Metal Chemistry, 2021 In this study, silver and gold nanoparticles were synthesized by using Syzygium aromaticum bud extract and reaction conditions were optimized. SPR band for silver nanoparticle (CAgNP) and for gold nanoparticle (CAuNP) was observed at 427 nm and 530 nm, respectively. The presence of phytochemical on the nanoparticle as capping agent in confirmed by Fourier transform infrared (FT-IR). Energy dispersive X-ray spectroscopy confirms the elemental composition of CAgNP and CAuNP. Zeta Potential measurements revealed that the surfaces of the nanoparticles were negatively charged. Transmission electron microscopy and dynamic light scattering experiment indicated that particles were spherical and moderately dispersed. The CAgNPs have shown sensitivity to detect Hg(II) whereas CAuNPs could detect Cr(III) and Pb(II) ions in aqueous solution. The metal ion detection was monitored by UV–Visible spectroscopy. The minimum detection limit for Hg(II) by using CAgNPs is 10 µM and that of Cr(III) and Pb(II) is 0.25 mM and 1 mM, respectively. Graphical Abstract
Information bottleneck based age verification Proceedings of the Annual Conference of the International Speech Communication Association Interspeech, 2009
Age verification using a hybrid speech processing approach Proceedings of the Annual Conference of the International Speech Communication Association Interspeech, 2009
Structural, optical and electrical characterization of CdSe nanoparticles Chalcogenide Letters, 2009
Structural, optical and electrical characterization of CdSe nanoparticles Chalcogenide Letters, 2009
RECENT SCHOLAR PUBLICATIONS
Structural optical and magnetic characterizations of pure and cobalt-doped CdSe nanoparticles to investigate photocatalytic degradation of methyl blue under visible light A Manna, MR Bera, TN Ghosh, S Saha, SC Saha Journal of Materials Science: Materials in Electronics 35 (2), 170 , 2024 2024.0 Citations: 5
Temperature Induced Structural Transition of CdSe Nanoparticles to CdSe Nano-rings A Manna, R Bhattacharya, S Saha, SC Saha Vidyasagar University, Midnapore, West Bengal, India , 2018 2018.0
Structural and Optical Characterizations of CdSe Nanoparticles- Protein Bioconjugate A Manna, AK Bhunia, S Saha, SC Saha IOSR Journal of Applied Physics (IOSR-JAP) 10 (Issue 3 Ver. III), 1-7 , 2018 2018.0
Fabrication and Characterization of Natural Dye Sensitized Solar Cell based on CdSe nanorods AM R. Bhattacharya , A. K. Bhunia , S. Saha, S.C. Saha IOSR Journal of Applied Physics (IOSR-JAP) 9 (Issue 6 Ver.III), 22-27 , 2017 2017.0
Fabrication and characterization of natural dye sensitized solar cell based on CdSe nanorods A Manna, R Bhattacharya, AK Bhunia, S Saha, SC Saha IOSR Journal of Applied Psysics (IOSR-JAP) 9 (6), 22-27 , 2017 2017.0 Citations: 3
Fabrication and characterization of Al/n-CdSe schottky barrier under different annealing temperatures A Manna, S Saha, SC Saha Chalcogenide Letters 14 (7), 283-289 , 2017 2017.0 Citations: 7
Transition from CdSe Nanoparticles to CdSe nanorods with Growth Time S Saha 2017.0
Schottky barrier of Al on chemically grown n-CdSe nanoparticles S Saha, A Manna Lecture Notes in Information Technology 22, 77 , 2012 2012.0 Citations: 1
Effect of reducing agent in the formation of CdSe nanoparticles by chemical reduction route A Manna, R Bhattacharya, TK Das, S Saha Physica B: Condensed Matter 406 (4), 981-984 , 2011 2011.0 Citations: 10
Room temperature synthesis and characterization of nanocrystallites CdxZn1-xS SS Rahul Bhattacharya, Tapan Kumar Das, Amit Manna International Conference on fundamental and Applications of Nanoscience … , 2010 2010.0
Role of reducing agent in the formation of ZnSe nanorods by chemical reduction method TK Das, R Bhattacharya, A Manna, S Saha The European Physical Journal-Applied Physics 51 (3), 30605 , 2010 2010.0 Citations: 5
Characterization and growth of CdS nanoparticles by a cost effective chemical reduction method R Bhattacharya, A Manna, TK Das, S Saha Crystal Research and Technology: Journal of Experimental and Industrial … , 2010 2010.0 Citations: 3
Structural, optical and electrical characterization of CdSe nanoparticles A Manna, R Bhattacharya, S Saha Chalcogenide Letters 6 (9), 477-482 , 2009 2009.0 Citations: 5
Role of reducing agent in the formation of ZnSe nanorods by chemical reduction method R Bhattacharya, A Manna, S Saha European Physical Journal AP (Applied Physics) 51 (3) , 0
Growth and characterization of CdSe nanostructured material for device applications and its interaction with protein M Amit Midnapore , 0
Room temperature synthesis and characterization of nanocrystallites R Bhattacharya, TK Das, A Manna, S Saha
Restricted transmission of 2019-nCoV/SARS-CoV-2 in human body due to meteorological variables dependent immune system A Manna, SC Saha
MOST CITED SCHOLAR PUBLICATIONS
Effect of reducing agent in the formation of CdSe nanoparticles by chemical reduction route A Manna, R Bhattacharya, TK Das, S Saha Physica B: Condensed Matter 406 (4), 981-984 , 2011 2011.0 Citations: 10
Fabrication and characterization of Al/n-CdSe schottky barrier under different annealing temperatures A Manna, S Saha, SC Saha Chalcogenide Letters 14 (7), 283-289 , 2017 2017.0 Citations: 7
Structural optical and magnetic characterizations of pure and cobalt-doped CdSe nanoparticles to investigate photocatalytic degradation of methyl blue under visible light A Manna, MR Bera, TN Ghosh, S Saha, SC Saha Journal of Materials Science: Materials in Electronics 35 (2), 170 , 2024 2024.0 Citations: 5
Role of reducing agent in the formation of ZnSe nanorods by chemical reduction method TK Das, R Bhattacharya, A Manna, S Saha The European Physical Journal-Applied Physics 51 (3), 30605 , 2010 2010.0 Citations: 5
Structural, optical and electrical characterization of CdSe nanoparticles A Manna, R Bhattacharya, S Saha Chalcogenide Letters 6 (9), 477-482 , 2009 2009.0 Citations: 5
Fabrication and characterization of natural dye sensitized solar cell based on CdSe nanorods A Manna, R Bhattacharya, AK Bhunia, S Saha, SC Saha IOSR Journal of Applied Psysics (IOSR-JAP) 9 (6), 22-27 , 2017 2017.0 Citations: 3
Characterization and growth of CdS nanoparticles by a cost effective chemical reduction method R Bhattacharya, A Manna, TK Das, S Saha Crystal Research and Technology: Journal of Experimental and Industrial … , 2010 2010.0 Citations: 3
Schottky barrier of Al on chemically grown n-CdSe nanoparticles S Saha, A Manna Lecture Notes in Information Technology 22, 77 , 2012 2012.0 Citations: 1
Temperature Induced Structural Transition of CdSe Nanoparticles to CdSe Nano-rings A Manna, R Bhattacharya, S Saha, SC Saha Vidyasagar University, Midnapore, West Bengal, India , 2018 2018.0
Structural and Optical Characterizations of CdSe Nanoparticles- Protein Bioconjugate A Manna, AK Bhunia, S Saha, SC Saha IOSR Journal of Applied Physics (IOSR-JAP) 10 (Issue 3 Ver. III), 1-7 , 2018 2018.0
Fabrication and Characterization of Natural Dye Sensitized Solar Cell based on CdSe nanorods AM R. Bhattacharya , A. K. Bhunia , S. Saha, S.C. Saha IOSR Journal of Applied Physics (IOSR-JAP) 9 (Issue 6 Ver.III), 22-27 , 2017 2017.0
Transition from CdSe Nanoparticles to CdSe nanorods with Growth Time S Saha 2017.0
Room temperature synthesis and characterization of nanocrystallites CdxZn1-xS SS Rahul Bhattacharya, Tapan Kumar Das, Amit Manna International Conference on fundamental and Applications of Nanoscience … , 2010 2010.0
Role of reducing agent in the formation of ZnSe nanorods by chemical reduction method R Bhattacharya, A Manna, S Saha European Physical Journal AP (Applied Physics) 51 (3) , 0
Growth and characterization of CdSe nanostructured material for device applications and its interaction with protein M Amit Midnapore , 0
Room temperature synthesis and characterization of nanocrystallites R Bhattacharya, TK Das, A Manna, S Saha
Restricted transmission of 2019-nCoV/SARS-CoV-2 in human body due to meteorological variables dependent immune system A Manna, SC Saha
