Pradeep Thalappil
Indian Institute of Technology Madras, Chennai, Chemistry, Faculty Member
Smoke manifested ever since our ancient’s lit fire; today it has evolved to become an environmental concern. However, medicinal smoke is still part of man’s natural remedies, religious and cultural practices too. The Asiatic household... more
Smoke manifested ever since our ancient’s lit fire; today it has evolved to become an environmental concern. However, medicinal smoke is still part of man’s natural remedies, religious and cultural practices too. The Asiatic household practice of burning turmeric rhizomes to relieve nose and chest congestion is a well known yet never scientifically authenticated or studied practice. For the first time we investigate the components of these turmeric smudges, validate their antimicrobial and anticancer properties and their cell compatibility. With smoke there is always nanoparticulate carbon and turmeric smoke is no exception. If so, what is the role of the nano carbon (NC) in the turmeric smudge effect? This study isolated, characterized and exposed these secret natural NC undercover agents in turmeric smoke. Their unequivocal role in the ethanopharmocological activity of turmeric smudging has been demonstrated. This work opens a new avenue for use of such nano components of smoke fo...
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Rohitukine, a chromone alkaloid, possesses anti-inflammatory, anti-cancer and immuno-modulatory properties. It has been reported from four species, belonging to the families, Meliaceae and Rubiaceae. Stem bark of Dysoxylum binectariferum... more
Rohitukine, a chromone alkaloid, possesses anti-inflammatory, anti-cancer and immuno-modulatory properties. It has been reported from four species, belonging to the families, Meliaceae and Rubiaceae. Stem bark of Dysoxylum binectariferum (Meliaceae) accumulates the highest amount of rohitukine (3-7% by dry weight). In this study, we examine the spatial and temporal distribution of rohitukine and related compounds during various stages of seed development in D. binectariferum using desorption electrospray ionization mass spectrometry imaging (DESI MSI). Rohitukine (m/z 306.2) accumulation increased from early seed development to seed maturity stage. The spatial distribution of rohitukine was largely restricted to the cotyledonary tissue followed by the embryo and least in the seed coat. Besides rohitukine, rohitukine acetate (m/z 348.2) and glycosylated rohitukine (m/z 468.2) were also detected, both through mass fragmentation and exact mass analysis through Orbitrap mass spectrometr...
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ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full... more
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
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... Phys. 118, 4614-19 (2003). 6. N. Sandhyarani, MR Resmi, R. Unnikrishnan, K. Vidyasagar, Shuguang Ma, MP Antony, G. Panneer Selvam, V. Visalakshi, N. Chandrakumar and T. Pradeep, Chem. Mater., 12, 104-113 (2000). ...
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Research Interests: Chemistry, Analytical Chemistry, Chromatography, Mass Spectrometry, Medicine, and 10 moreElectrospray, Acknowledgement, Tandem Mass Spectrometry, Liquid Chromatography / Electrospray Ionization Mass Spectrometry, Angiosperms, Analyst, Camptothecin, Plant Leaves, Permission, and Electrospray Ionization
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Research Interests: Chemistry, Nanoparticle, Nanoparticles, Medicine, Multidisciplinary, and 3 moreHeme, Langmuir, and Hemin
An efficient method to enhance visible luminescence in a visibly non-luminescent organic-soluble 4-(tert butyl)benzyl mercaptan (SBB)-stabilized Au25 cluster has been developed.
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This invention relates to the degrdn./dechlorination of lindane and its removal from water by graphene nanocomposites. [on SciFinder(R)]
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... References. ELSEVIER Journal of Molecular Structure 435 (1997) 1115 Journal of MOLECULAR STRUCTURE Infrared spectroscopic study of the structural transitions of C60Br24 MR Resmia, L. Georgea, S. Singha, T.... more
... References. ELSEVIER Journal of Molecular Structure 435 (1997) 1115 Journal of MOLECULAR STRUCTURE Infrared spectroscopic study of the structural transitions of C60Br24 MR Resmia, L. Georgea, S. Singha, T. Pradeepa'*, K. Udaya Sankarb "Department of Chemistry. ...
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Research Interests: Electron Microscopy, Crystal Growth, Mass Spectrometry, Scanning Electron Microscopy, Morphology, and 15 moreNanoparticles, Transmission Electron Microscopy, Anisotropy, Sensors, X Rays, Gold nanoparticle, Nanostructures, OR, Nanostructure, UV/Vis spectroscopy, Ionization, Mass Spectroscopy, Chemical Composition, Raman Scattering, and Crystal Violet
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Research Interests: Chemical Engineering, Materials Science, Nanotechnology, Polymers, Medicine, and 12 moreMetal Nanoparticles, Silver Nanoparticles, Silver, Escherichia coli, Solubility, Aspergillus niger, Antimicrobial, Microbial Sensitivity Tests, Silver Nanoparticle, Polymer nanoparticle Composites, Organic Chemicals, and Polycondensation
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A blue luminescent 11-atom platinum cluster showing step-like optical features and the absence of plasmon absorption was synthesized. The cluster was purified using high performance liquid chromatography (HPLC). Electrospray ionization... more
A blue luminescent 11-atom platinum cluster showing step-like optical features and the absence of plasmon absorption was synthesized. The cluster was purified using high performance liquid chromatography (HPLC). Electrospray ionization (ESI) and matrix assisted laser desorption ionization (MALDI) mass spectrometry (MS) suggest a composition, Pt11(BBS)8, which was confirmed by a range of other experimental tools. The cluster is highly stable and compatible with many organic solvents.