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Sunita Joshi ( Ph.D. awarded in 2015, at present, Faculty at Amity University, Postdoc. Charles University, Czech Republic, 2015-17, National Postdoc. (DST), IIT Bombay 2018

Topic:‘ Photophysics of fluorescent molecules in micellar systems’ 

Publications (in Peer Reviewed International Journals): 

  • Highly sensitive fluorescent imidazolium-based sensors for nanomolar detection of explosive picric acid in aqueous medium: Santosh Kumari, Sunita Joshi, Tania C. Cordova-Sintjago, D. D. Pant, Rajeev Sakhuja, Sensors and Actuators B: Chemical, 229 (2016) 599-608.
  • Fluorescence Quenching of a Benzimidazolium–based Probe for Selective Detection of Picric Acid in Aqueous Medium: Sunita Joshi, Santosh kumari, Eduardo Chamorro, D. D. Pant, and Rajeev Sakhuja, ChemSelect 1 (2016) 1-8.
  • Estimation of ground and excited-state dipole moments of synthesized coumarin derivative, (S)-(1-((7-hydroxy-2-oxo-2H-chromen-4-yl)methyl)-1H-1,2,3-triazol-4-yl)methyl 2-(((9H-fluoren-9-yl)methoxy)cabonylamino)-3-phenylpropanoate from a solvatochromic shift and theoretical methods, Sunita Joshi, Santosh Kumari, Rituparna Bhattacharjee, Rajeev Sakhuja and D. D. Pant,  Journal of Molecular Liquids, (2015) in press.
  • Solvent effect on absorption and fluorescence spectra of cinchonine and cinchonidine dications: Estimation of ground and excited state dipole moments by experimental and numerical studies
    Ritika Sharma,  Sunit Joshi,  Rituparna Bhattacharjee, Debi D. Pant, Journal of Molecular Liquids, 206 (2015) 159-164.
  • Effect of nanosize micelles of ionic and neutral surfactants on the photophysics of protonated 6-methoxyquinoline: Time-resolved fluorescence study.Tej Varma Y, Sunita Joshi, and D. D. Pant, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy,138 (2015) 818-826.
  • Interaction of quinine sulfate with anionic micelles of sodium dodecylsulfate: A time-resolved fluorescence spectroscopy at different pH, Sunita Joshi, D D pant, Spectrochimica Acta Part A Molecular Spectroscopy, 148 (2015) 49-59.
  • Synthesis, Absorption, and Fluorescence Studies of Coumaryl-Labelled Amino Acids and Dipeptides Linked Via Triazole Ring
    Santosh Kumari, Sunita Joshi, S. M. Abdul Shakoor, Devesh S. Agarwal, Siva S. Panda, Debi D. Pant,  Rajeev Sakhuja, Australian Journal of Chemistry, (2015).
  • Estimation of ground and excited state dipole moments of synthesized coumarin derivative [N-(2-oxo-2H-chromen-4-yl)imino]triphenyl-phosphorane. Sunita Joshi, Santosh Kumari, Rituparna Bhattacharjee, Rajeev Sakhuja and D. D. Pant. Journal of Molecular Liquids, 200 (2014) 115-119.
  • Steady state and time-resolved fluorescence spectroscopy of quinine sulfate dication bound to sodium dodecylsulfate micelles: Fluorescent complex formation. Sunita Joshi and D. D. Pant, Journal of Luminescence, 145 (2014) 224-231.
  • Steady state and time-resolved fluorescence spectroscopy of quinine sulfate dication in ionic and neutral micelles: Effect of micellar charge on photophysics. Sunita Joshi, Tej Varma Y and D. D. Pant, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 425 (2013) 59– 67
  • Estimation of ground and excited state dipole moments of quinidine and quinidine dication: Experimental and numerical methods. Sunita Joshi, Rituparna Bhattacharjee, Tej Varma Y  and D. D. Pant, Journal of Molecular Liquids 179 (2013) 88–93.
  • Solvatochromatic shift of absorption and fluorescence spectra of 6-methoxyquinoline: Estimation of ground and excited state dipole moments. Tej Varma Y, Sunita Joshi, and D. D. Pant, Journal of Molecular Liquids 179 (2013) 7–11
  • Surface second harmonic generation from coumarin 343 dye-attached TiO2 nanoparticles at liquid-liquid interface:D. D. Pant, Sunita Joshi and Hubert H. Girault, Journal of Nanoparticle Research, 13 (2011) 7057-7064. 
  • Solvatochromic shift and estimation of dipole moment of quinine sulfate:Sunita Joshi and D. D. Pant, Journal of Molecular Liquids 166 (2012) 49-52. 
  • Solvatochromic shift and estimation of dipole moment of quinine sulfate dication.Sunita Joshi and D. D. Pant, International Journal of Chemical and Biological Engineering.6 (2012)225-229.
  • Ground and excited state dipole moments of quinine sulfate dication: Solvatochromic shift of absorption and fluorescence spectra.Sunita Joshi and D. D. Pant, Journal of Molecular Liquids 172 (2012) 125-129.

In conference Proceedings :

 

  • Solvent effects on the absorption and fluorescence spectra of quinine sulphate: Estimation of ground and excited-state dipole moments.Joshi, Sunita; Pant, Debi D. SOLID STATE PHYSICS: Proceedings of the 56th DAE Solid State Physics Symposium 2011. AIP Conference Proceedings, Volume 1447, pp. 201-202 (2012).
  • Solvatochromic shift and estimation of dipole moment of quinine sulfate dication. Sunita Joshi and D. D. Pant, Conference Proceedings of ‘World Academy of Science , Engineering and Technology (WASET)’, Spain,  Volume   2011.
  • Solvatochromic effect on Absorption and Fluorescence Spectra of Quinine Sulfate dication: Estimation of dipole moment. Sunita Joshi and D. D. Pant, Conference Proceedings of ‘DST New Delhi Sponsored National Conference on Emerging Trends in Materials Science (ETRMS)  November 12-13, 2011. SKIT, Jaipur.
  • Photophysics of quinine sulphate dication in micellar environments. S. Joshi and D. D. Pant,  International Journal of Physics and Mathematical Sciences (online) 2 (2012) 70-77. 

 

 

Tej Varma Y ( Ph.D. Awarded in 2016, at present Postdoctoral Research Associate, Sweden, Postdoc. Czech Republic (2016-17), Europe)

Topic: ‘Excited state relaxation dynamics of fluorescent molecules in nanosized  micellar systems’
Publications:
(in Peer Reviewed International Journals), 
 
   8.  Solvent effects on absorption and emission spectra of noval benzyl-D- alaninate (Fmoc-al-az): Determination           of dipole moment by experimental and theoretical study. Tej Varma Y, Devesh S. Agarwal, Amrit Sarmah,               Lata Joshi, Rajeev Sakhuja and D. D. Pant, Journal  of Molecular Structure, 1129 (2017) 248-255.
 
  7.  Experimental and Quantum Chemical Calculations of Imidazolium Appended Naphthalene Hybrid in                        Different Biomimicking Aqueous Interfaces, Tej Varma Yenupuri, Lucia Mydlova, Devesh S.                Agarwal, Ritika Sharma, Rajeev Sakhuja, Malgorzata Makowska-Janusik, and D. D. Pant J. Phys.                   Chem. A, 120 (33), pp    6563–6574.
   
6.    Design and Synthesis of Amino acid Appended Azo Dye Hydrid : Characterization, Solvatochromic and          Quantum-Chemical Caluculations - Using Experimental and Theoretical Approach: Y. Tej Varma, D. S.          Agarwal, A. Sarmah, Yukti, Rajeev Sakhuja and  D. D. Pant, Journal of Molecular Liquids, (2016) 221, 1022-         1028.(2016)
 
5. Interaction of 6-methoxyquinoline with anionic sodium dodecylsulfate micelles: Photophysics and rotational relaxation dynamics at different pH, Y. Tej Varma and D. D. Pant, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 158 (2016) 9-17.

4. Effect of nanosize micelles of ionic and neutral surfactants on the photophysics of protonated 6-methoxyquinoline: Time-resolved fluorescence study.Tej Varma Y, Sunita Joshi, and D. D. Pant, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy,138 (2015) 818-826.

 3. Steady state and time-resolved fluorescence spectroscopy of quinine sulfate dication in ionic and neutral micelles: Effect of micellar charge on photophysics. Sunita Joshi, Tej Varma Y and D. D. Pant, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 425 (1913), 59-67.

 2. Estimation of ground and excited state dipole moments of quinidine and quinidine dication: Experimental and numerical methods. Sunita Joshi, Rituparna Bhattacharjee, Tej Varma Y  and D. D. Pant, Journal of Molecular Liquids 179 (2013) 88–93.

 1. Solvatochromatic shift of absorption and fluorescence spectra of 6-methoxyquinoline: Estimation of ground and excited state dipole moments. Tej Varma Y, Sunita Joshi, and D. D. Pant, Journal of Molecular Liquids 179 (2013) 7–11.

 
 
 

Ritika Sharma

JRF in a DST funded Major Research Project.
15th July, 2014 - March 2017.

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