Avijit Kumar Das

Post-doc


NEO - Nanostructures Organiques
Institut des Sciences Moléculaires
UMR 5255 CNRS/Université Bordeaux
351, Cours de la Libération
33405 Talence Cedex, France

Tel: +33 (0) 540 00 3369


Email: sanjuavi.das@gmail.com

Dr. Das is an Indian Origin. He studied his Graduation (BSc) from Midnapore College under Vidyasagar University, India from 2005-2008. He completed his Post-Graduation (MSc) and Ph.D from IIEST, Shibpur, India from 2008-2016. Dr. Das was awarded Junior and Senior Research Fellowship for his doctoral research from CSIR, Govt. of India under the supervision of Prof. Shyamaprosad Goswami. His doctoral thesis entitled "Design and synthesis of fluorescent sensors for important biological including cations, anions and reactive species". After his doctoral research, he moved to Japan, to continue his research activities in the same research field as a postdoctoral fellow in the group of Prof. Yasuhiro Shiraishi, Research Center for Solar Energy Chemistry, Osaka University (Oct, 2016 – March, 2017). In the same year 2016, he was awarded the internationally prestigious “Humboldt Postdoctoral Research Fellowship” for 2 years from “Alexander von Humboldt-Foundation”, at University of Siegen, Germany for his second postdoctoral research under Prof. Dr. Heiko Ihmels in the domains of DNA binding, intercalator-receptor conjugates, light-up probes and dual-mode chemosensors (May, 2017 – Apr, 2019). In May, 2019, he got another award as University of Bordeaux Initiative of Excellence (IdEx) Postdoctoral Fellowship to start his third postdoc from September, 2019 in the research group of Dr. Nathan D. McClenaghan, Institut des Sciences Moléculaires, CNRS/Université Bordeaux, France.

Research interests

Organic molecular synthesis, molecular recognition and supramolecular chemistry, host-guest chemistry, development of various fluorescent chemosensors for detection of biologically important analytes (cations, anions, reactive species and neutral molecules) and biomolecules (duplex and quadruplex DNA). Chemosensors development for the detection of various analytes and biomolecules has been achieved by variuous physical-organic analysis such as high-resolution NMR, mass spectra, X-ray diffraction analysis, absorption, emission, CD, LD spectroscopy, viscosimetry, thermal DNA-denaturation experiments, Gel electrophoresis, molecular structure determination, quantum chemical DFT calculation, bio-organic chemistry and fluorescence cell imaging etc.

Publications

  1. Colorimetric and fluorimetric DNA detection with a hydroxystyrylquinolizinium photoacid and its application for cell imaging
    Das, K. A., Druzhinin, S. I., Ihmels, H., Müller, M., Schönherr, H.

    Chem. Eur. J., 2019, ASAP.
  2. Diphenylaminostyryl-substituted quinolizinium derivatives as fluorescent light-up probes for duplex and quadruplex DNA
    Das, A. K, Ihmels, H and Kölsch, S.

    Photochem. Photobiol. Sci., 2019, 18, 1373-1381.
  3. Design, synthesis and structural optimization of two click modified butterfly molecules (2019): Aggregation induced ratiometric fluorescence change and ICT associated hydrogen bonding effect in solvatochromic analysis
    Das, A. K., Goswami, S., Dolai, M.

    Journal of Molecular Structure, 2019, 329-337.
  4. Single sensor for multiple analytes employing fluorometric differentiation for Cr3+ and Al3+ in semi-aqueous medium with bio-activity and theoretical Aspects
    Dolai, M., Saha,U., Das. A. K. and G. S. Kumar

    Anal. Methods, 2018, 10, 4063-4072.
  5. 2-Hydroxy-1-naphthaldehyde: A versatile building block for the development of sensors in supramolecular chemistry and molecular recognition
    Das, A. K., Goswami, S.

    Sensors and Actuators B: Chemical., Review article., 2017, 2045, 1062-1125.
  6. An antimalarial drug, tafenoquine, as a fluorescent receptor for ratiometric detection of hypochlorite
    Das, A. K., Hayashi, N., Shiraishi,Y., Hirai, T.

    RSC Adv., 2017, 7, 30453-30458.
  7. Relay recognition of F¯ and a nerve-agent mimic diethyl cyano-phosphonate in mixed aqueous media: discrimination of diethyl cyanophosphonate and diethyl chlorophoasphate by cyclization induced fluorescence enhancement
    Das, A. K., Goswami, S., Quah, C. K., Fun, H. K.

    RSC Adv., 2016, 6, 18711-18717.
  8. Concentration dependent auto-relay-recognition by same analyte: Dual fluorescence switch-on by hydrogen sulfide via Michael addition followed by reduction and staining bio-activity
    Das, A. K., Goswami, S., Dutta, G., Maity, S., Mandal, T. K., Khanra, K., Bhattacharyya N.

    Org. Biomol.Chem., 2016, 14, 570-576.
  9. Neighbouring group participation of thiol through aldehyde group assisted thiolysis of active ether: ratiometric and vapor phase fast detection of hydrogen sulfide in mixed aqueous media
    Das, A. K., Goswami, S., Quah, C. K., Fun, H. K.

    New J. Chem., 2015, 39, 5669-5675.
  10. Rapid detection of hydrazine in naphthol-fused chromenyl loop and its effectiveness in human lung cancer cells: tuning remarkable selectivity via reaction altered pathway supported by theoretical studies
    Goswami, S., Das, A. K., Saha, U., Maity, S., Khanra, K., Bhattacharyya, N.

    Org. Biomol. Chem., 2015, 13, 2134-2139.
  11. ESIPT based Hg2+ and fluoride chemosensor for sensitive and selective ‘turn on’ red signal and cell imaging
    Goswami, S., Maity, S., Maity, A. C., Das, A. K., Pakhira, B., Sarkar, S., Khanra, K., Bhattacharyya, N.

    RSC Adv., 2015, 5, 5735-5740.
  12. Nanomolar detection of hypochlorite by a rhodamine based chiral hydrazide in absolute aqueous media: application in tap water analysis with live-cell imaging
    Goswami, S., Das, A. K., Manna, A., Maity, A. K., Saha, P., Quah, C. K., Fun, H. K., Abdel Aziz, H. A.

    Analytical Chemistry., 2014, 86, 6315-6322.
  13. Pyrophosphate selective fluorescent chemosensors: cascade recognition of nuclear stain mimicking DAPI
    Goswami, S., Das, A. K., Pakhira, B., Roy, S. B., Maity, A. K., Saha, P., Sarkar S.

    Dalton Trans., 2014, 43, 12689-12697.
  14. Visual and Near IR (NIR) Fluorescence detection of Cr3+ in Aqueous Media via Spirobenzopyran ring opening with Application in Logic gate and Bio-imaging
    Goswami, S., Das, A. K., Maity, A. K., Manna, A., Aich, K., Maity, S., Saha, P., Mandal, T. K.

    Dalton Trans., 2014, 43, 231-239.
  15. A colorimetric and ratiometric fluorescent turn-on fluoride chemodosimeter and application in live cell imaging: high selectivity via specific Si–O cleavage in semi aqueous media and prompt recovery of ESIPT along with the X-ray structures
    Goswami, S., Das, A. K., Manna, A., Maity, A. K., Fun, H. K., Quah, C. K., Saha, Partha.

    Tetrahedron Lett., 2014, 16, 2633-2638.
  16. A FRET based rhodamine-benzimidazole conjugate as Cu2+ selective colorimetric and ratiometric fluorescence probe with its effective function as cytoplasm marker
    Goswami, S., Maity, S., Maity, A. C., Maity, A. K., Das, A. K., Saha, P.

    RSC. Adv., 2014, 4, 6300-6305.
  17. A turn on ESIPT probe for rapid and ratiometric fluorogenic detection homocysteine and cysteine in water with live cell-imaging
    Goswami, S., Manna, A., Paul, S., Das, A. K., Nandi, P. K., Maity, A. K., Saha, P.

    Tetrahedron Lett., 2014, 2, 490-494.
  18. Selective Colorimetric and Ratiometric Probe for Ni(II) in Quinoxaline Matrix with the Single Crystal X-ray Structure
    Goswami, S., Chakraborty, S., Das, A. K., Manna, A., Bhattacharyya, A., Quah, C. K., Fun, H. K.

    RSC. Adv., 2014, 4, 20922-20926.
  19. Fluorometric and naked-eye detectable dual signaling chemodosimeter for hypochlorite
    Goswami, S., Maity, S., Maity, A. C., Das, A. K.

    Sensors and Actuators B., 2014, 204, 741–745.
  20. A macrocyclic piperazine linked extremely Zn2+ selective fluorescent chemosensor with bio-imaging and for H2PO4¯ sensing
    Goswami, S., Maity, S., Maity, A. C., Das, A. K., Khanra, K., Mandal, T. K., Bhattacharyya, N.

    Tetrahedron Lett., 2014, 43, 5993-5997.
  21. Single sensor for multiple analytes: fluorogenic detection of Al3+ in aqueous media and AcO¯ in organic media
    Goswami, S., Das, A. K., Aich, K., Manna, A., Fun, H. K., Quah, C. K.

    Supramolecular Chemistry., 2014, 2, 94–104.
  22. ‘PET’ vs. ‘Push-Pull’ induced ICT: A remarkable Coumarinylappended Pyrimidine based Naked Eye Colorimetric and Fluorimetric Sensor for detection of Hg2+ ion in aqueous media with test trip
    Goswami, S., Das, A. K., Maity, S.

    Dalton Trans., 2013, 42, 16259-16263.
  23. Ratiometric and absolute water-soluble fluorescent tripodal zinc sensor and its application in killing human lung cancer cells
    Goswami, S., Das, A. K., Aich, K., Manna, A., Maity, S., Khanra, K., Bhattacharyya N.

    Analyst, 2013, 138, 4593-4598.
  24. Competitive intra- and inter-molecular proton transfer in hydroxynaphthyl benzothiazole: selective ratiometric sensing of acetate
    Goswami, S., Das, A. K., Aich, K., Manna, A.

    Tetrahedron Lett., 2013, 54, 4215-4220.
  25. Remarkable ESIPT induced NIR emission by a selective colorimetric dibenzimidazolo diimine sensor for acetate
    Goswami, S., Maity, S., Das, A. K., Maity, A. C., Mandal, T. K., Samanta, S.

    Tetrahedron Lett., 2013, 54, 5232–5235.
  26. Highly reactive (<1 min) ratiometric probe for selective ‘naked-eye’ detection of cyanide in aqueous media
    Goswami, S., Manna, A., Paul, S., Aich, K., Das, A. K., Chakraborty, S.

    Tetrahedron Lett., 2013, 54, 1785–1789.
  27. Selective detection and bio-imaging of Pd2+ with novel ‘C–CN’ bond cleavage of cyano-rhodamine, cyanation with diaminomaleonitrile
    Goswami, S., Manna, A., Maity, A. K., Paul, S., Das, A. K., Das, M. K., Saha, P., Quah C. K., Fun, H. K.

    Dalton Trans., 2013, 42, 12844–12848.
  28. Resonance-assisted hydrogen bonding induced nucleophilic addition to hamper ESIPT: ratiometric detection of cyanide in aqueous media
    Goswami, S., Manna, A., Paul, S., Das, A. K., Aich, K., Nandi, P. K.

    Chem. Commun., 2013, 49, 2912-2914.
  29. Dual channel selective fluorescence detection of Al(III) and PPi in aqueous media with an ‘off–on–off’ switch which mimics molecular logic gates (INHIBIT and EXOR gates)
    Goswami, S., Manna, A., Paul, S., Aich, K., Das, A. K., Chakraborty, S.

    Dalton Trans., 2013, 42, 8078–8085.
  30. A naphthalimide–quinoline based probe for selective, fluorescence ratiometric sensing of trivalent ions
    Goswami, S., Aich, K., Das, A. K., Manna, A., Das, S.

    RSC Adv., 2013, 3, 2412-2416.
  31. A highly selective and sensitive probe for colorimetric and fluorogenic detection of Cd2+ in aqueous media
    Goswami, S., Aich, K., Das, S., Das, A. K., Mannaa, A., Halder, S.

    Analyst, 2013, 138, 1903–1907.
  32. A new rhodamine-coumarin Cu2+ selective colorimetric and ‘off–on’ fluorescence probe for effective use in chemistry and bioimaging along with its bound X-ray crystal structure
    Goswami, S., Sen, D., Das, A. K., Das, N. K., Aich, K., Fun, H. K., Quah, C. K., Maity, A. K., Saha, P.

    Sensors and Actuators B: Chemical, 2013, 183, 518–525.
  33. A new rhodamine-coumarin Cu2+ selective colorimetric and ‘off–on’ fluorescence probe for effective use in chemistry and bioimaging along with its bound X-ray crystal structure
    Goswami, S., Maity, S., Das, A. K., Maity, A. C.

    Tetrahedron Lett., 2013, 48, 6631-6634.
  34. A red fluorescence ‘off-on’ molecular switch for selective detection of Al3+, Fe3+ and Cr3+: experimental and theoretical studies along with living cell imaging
    Goswami, S., Aich, K., Das, S., Das, A. K., Sarkar, D., Panja, S., Mondal, T. K., Mukhopadhyay S.

    Chem. Commun., 2013, 49, 10739-10741.
  35. A simple naphthalene-based colorimetric sensor selective for acetate
    Goswami, S., Das, A. K., Sen, D., Aich, K., Fun, H. K., Quah, C. K.

    Tetrahedron Lett., 2012, 53, 4819–4823.

 

Copyright 2010 © Nathan McClenaghan, Institut des Sciences Moléculaires - UMR 5255 CNRS/Université Bordeaux 1