Diganta Kumar Das

Diganta Kumar Das

Department of Chemistry
Gauhati University
Guwahati 781 014, Assam, India.

Phone :  +91-98642-73744

Email diganta_chem@gauhati.ac.in



  • Teaching and Research
  • Inorganic Synthesis
  • Fluorescence Sensor
  • Voltammetric Sensor
  • Bioelectrochemistry
  • Ph D
  • M Sc
  • PGDAC
  • Radiological Physics
  • undefined

List of publications: 

                 2017

  1. D K Das, Jutika Kumar, A Bhowmick, P K Bhattacharyya, S Banu. 2-Hydroxyacetophenone and ethylenediamine condensed Schiff base: Fluorescent sensor for Al3+ and PO43-, biological cell imaging and INHIBIT logic gate. Inorganica Chimica Acta462 (2017) 167–173.
  2. Kangkana Deka, D K Das, Voltammetric distinction between dopamine and ascorbic acid using bare Platinum disc electrode catalysed by bisethylenediaminecopper(II). Indian J. Chem. Tech. 24  (2017) 102-106.

                 2016

2.        Smita Sarma, Pradip Kr. Bhattacharyya, D K Das, Condensation product of phenylalanine and salicylaldehyde: fluorescent sensor for Zn2+.  J. Fluorescence 26 (2016) 899-904.

3.        Babita Sarma, Saurav Bharali, D K Das, Synthesis, Crystal structure and Thermogravimetry of ortho phthalic acid bridged coordination polymer of Copper(II), J Chem Sc. (2016) 899-904. 

4.        Subratjyoti Borah, D K Das, Modified montmorillonite clay stabilized silver nanoparticles: An active heterogeneous catalytic system for the synthesis of propargylamines. Catalysis Letters 146 (2016) 146:656–665

 2015

5.        Smita Sarma, Pradip Kr. Bhattacharyya, D K Das, A new fluorescent “off-on” sensor for Al3+ derived from L-alanine and salicylaldehyde. J. Fluorescence 25 (2015) 1537

6.        Jutika Kumar, Manas Jyoti Sarma, Prodeep Phukan, D K DasSurfactant dependent pH controlled “off-on”, “off-on-off” and “on-off” fluorescent switches exhibited by N-benzylidenenaphthalen-1-amine. J Fluoresce 25 (2015) 14311435.

7.        Jutika Kumar, Manas Jyoti Sarma, Prodeep Phukan, D K DasA new simple Schiff base fluorescent “on” sensor for Al3+and its living cell imaging. Dalton Transactions44(10) (2015) 4576-4581. DOI: 10.1039/c4dt03932g

8.        Jutika Kumar, Pradip Bhattacharyya, D K Das, A New duel fluorescent “on-off” and colorimetric sensor for Copper(II): Copper(II) binds through N coordination and pi cation interaction to sensor. Spectrochim Acta A 138 (2015) 99–104.

 9.        Babita Sarma, P Bhattacharyya, D K Das, Synthesis, characterization and superoxide dismutase activity of bi-copper(II)-bisacetato m-phthalicacid[bis(benzyloxy) ethyl]ester. J Chem Sc 127 (2015) 455–459.

2014

10.     Jutika Kumar, D K DasNew fluorescent sensor for Cu2+ based on Schiff base derived from 1-naphthylamine and 2-chlorobenzaldehyde. Indian J Chem. Sec A 53A (2014) 1391-1396.

11.     D K Das, Dhanada SarmahRaben Ch. Roy Significant effect of charge microenvironment on the redox potential of [Fe4Se4(SPh)4]2-   in solution and inside filmCanadian J Chem. 92 (2014) 1–4 dx.doi.org/10.1139/cjc-2013-0586.

12.     Bishwapran Kashyap, Kaku Dutta, D K Das, P Phukan Structurally Simple Ferrocene Derivatives for Selective Cadmium Sensing. J Fluorescence 24 (2014) 975-981.

13.     Kaku Dutta, Ramesh Ch Deka, D K Das A new fluorescent and electrochemical Zn2+ ion sensor based on Schiff base derived from benzil and L-tryptophan. Spectrochim Acta A, 124 (2014) 124–129.

 14.     Kaku Dutta, Ramesh Ch Deka, D K Das The first enhanced ring planarity based fluorescent “off-on” sensor for Ca2+ ion. J Luminescence, 148 (2014) 325-329.

15.     D K Das, P Goswami, B Medhi N-benzoate-N′ salicylaldehyde ethynelediamine: A new fluorescent sensor for Zn2+ ion by “off-on” mode. J Fluorescence 145 (2014) 454-458.

16.     D K Das, Kaku Dutta, pH dependent fluorescence switching in Salicylideneaniline: ‘off-on-off’ operation controlled by surfactant micelles. J Luminescence, 145 (2014) 454-458.

17.     D K Das, Babita Sarma, Sangita Haloi - Synthesis, characterization and application as electrode modifying agent for simultaneous voltammetric determination of dopamine and ascorbic acid of a novel bimetallic copper(II) complex. J Chemical Papers 68 (2) (2014) 153–163  (DOI: 10.2478/s11696-013-0431-8).

 2013

18.     Dhanada Sarmah, D K Das, Effect of charge microenvironment on the electrochemistry of [Fe2S2(OC6H5)4]2- cluster. J Chemical Science. 125 (2013) 1429-1434

19.     Kaku Dutta, D K DasA new on-fluorescent probe for Manganese (II) ion. J Fluorescence,  (2013) 23:11731178 

20.     Kaku Dutta, Ramesh Ch. Deka, D K DasThe First Bifluoride Sensor Based on Fluorescent Enhancement. J Fluorescence, 23 (2013) 823–828

21.     D K Das, Priyanka Goswami, Smita Sarma, Salicylaldehyde phenylhydrazone: a new highly selective fluorescent lead (II) probe. J Fluorescence, 23 (2013) 503–508 

22.     Sangita Haloi, Priyanka Goswami, D K Das Differentiating response of 2,7 dichlorofluorescein intercalated CTAB modified Na-MMT clay matrix towards dopamine and ascorbic acid investigated by electronic, fluorescence spectroscopy and  electrochemistry. J Applied Clay Science 77-78(2013)79-82.

23.     Babita Sarma, D K Das Synthesis, spectroscopy, thermal analysis, electrochemistry and superoxide scavenging activity of a new bimetallic copper(II) complex. J Chemistry. 2013 (http://dx.dot.org/10.1155/2013/349580).

 2012:

 24.     D K Das , Priyanka Goswami, Champa Barman and Biva Das Methyl Red : A fluorescent sensor for Hg2+ over Na+, K+, Ca2+, Mg2+, Zn2+ and Cd2+ Env Eng Research, 2012, 175(S1):S1-S4.

25.     Kaku Dutta, D K Das 2,7-Diferrocenyl-3,6-diazaocta-2,6-diene: A highly selective dual fluorescent sensor for Zn2+ and Agand electrochemical sensor for Zn2+Indian J Chem., A. 51A(2012)816-820.

26.     Priyanka Goswami, D K Das  N,N,N,N-tetradentate macrocyclic ligand based selective fluorescent sensor for zinc (II). J Fluorescence 22 (2012) 1081-1085.

27.     Pradyumna Goswami and D K Das 2, 4-Dinitrophenylhydrazine @ phosphatidylcholine modified GC electrode: voltammetrically distinguishing dopamine, uric acid and ascorbic acid. J Surface Sc and Tech 28 (2012) 25-36.

28.     Rimki Bhattacharjya and D K Das Catechol encapsulated surfactant film modified Glassy Carbon electrode to detect thiourea at 10-8 M level Indian J Chem Tech 19 (2012) 52-55.

29.     Priyanka Goswami, D K Das  A new highly sensitive and selective fluorescent cadmium sensor. J Fluorescence 22 (2012) 391-395.

 2011:

30.     Champa Barman, Priyanka Goswami and D K Das  Methyl Red: A fluorescent sensor for Hg2+ over Na+, K+, Ca2+, Mg2+, Zn2+ and Cd2+ Proceedings International Seminar on Advances in Environmental Chemistry  Mizoram University 16 – 18 Nov 2011.

31.     Priyanka Goswami and D K Das Significant effect of surfactant micelles on the fluorescent “off-on-off” behaviour of salicylaldehyde- 2,4-dinitrophenylhydrazine. J Luminescence 131(2011)760-763

2010:

32.     Priyanka Goswami, Sukanya Baruah and D K Das, 2,7 dichlorofluorescein, a fluorescent sensor to detect Cd2+ over Na+, K+, Ca2+, Cu2+, Ni2+ and Zn2+.  Indian J Chem A, 49A (2010) 1617-1620.

 33.     Jitumani Rajbongshi and D K DasS Mazumdar, Direct electrochemistry of dinuclear CuA fragment from cytochrome oxidase of Thermus thermophilus at surfactant modified glassy carbon electrode. Electrochim Acta 55 (2010) 4174-4179.

2009:

34.     Manashjyoti Goswami and D K Das, Synthesis, Characterisation and bromoperoxidase activity of potassium bisperoxohistidinatovanadyl. Assam Science Soc 49 (2009) 64-67.

2008:

35.     D K Das Electrochemical detection of Zn2+ ion using diphenylamine/ carbon nanotube / cetyltrimethylammonium bromide film modified glassy carbon electrode.  J Surface Sc and Technology, 24 (2008) 149.

 36.     D K Das, Biva Das and Okhil K Medhi Electrochemistry of (protoporphyrinato IX) iron(III) and its imidazole complexes in liposomes of L-a -Phosphatidylcholine.  J Surface Sc and Technology, 24 (2008) 79-86.

37.    Rimki Bhattacharjya and D.K. Das  Vitamin K3 encapsulated poly(vinylpyrrolidone) film modified glassy carbon electrode for studying the vitamin K3 – caffeine interaction, Indian J Chem A, 47A, (2008) 394-396.

 2007:

38.     Raben Ch. Roy, D K Das – Electrochemistry of [Fe4S4(SCH2CH2COO-)4]6- in liposomes and microemulsions.  Indian J Chem, 46A (2007) 1252-1256.

39.     Rimki Bhattacharjya, D K Das, Ferrocene encapsulated lipid and surfactant film on electrode surface. A voltametric sensor for the determination of trace amount of thiourea, Indian J Chem A, 46A (2007) 276-279

 2006:

40.     Akhtar Hussain, Moushumi Sarma, D K Das Significant effect of egg albumin on the redox potential of vitamin KJ Assam Science Soc 47 (2006) 11-14

41.     Rimki Bhattacharjya, D K Das Catechol (1,2-dihydroxybenzene) inside charged film on electrode surface. A new voltammetric sensor of vitamin C  Indian J Chem A, 45A (2006) 909-912.

 2005:


42.     Raben Ch. Roy, D K Das – Redox linked protonation / deprotonation on the carboxylate of [Fe4S4(SCH2CH2COO-)4]6- in aqueous micellar solutions.  Indian J Chem A, 44A (2005) 1597-1601.

 43.     Raben Ch. Roy, D K Das - Influence of charged microenvironment on redox potential and diffusion co-efficient of [Fe4S4(SPh)4](NBu4)2 in DMF and inside CTAB film on electrode surface. J Chem Science, 117 (2005) 657-661.

44.     D K Das, Okhil K. Medhi – Aqua pyridine complex of protoporphyrinato IX iron(III): Effect of ligand binding, surfactant concentration and proton coupling on redox potential. Indian J Chem. 44A (2005) 2228 -2232.

2004 - 1995:

45.     Raben Ch. Roy, Rimki Bhattacharjya, D K Das – Effect of film charge on mid point potential of encapsulated ferrocene. Indian J Chem. 43A, 2004, 1689-1691.

46.     D K Kalita, D K Das, P K Gogoi, Synthesis, characterisation and antibacterial activity of 2-methylpipera zinedithiocarbamates of Ru(III), Rh(III), Pd(II), Os(III) and Pt(II)   (0) Proceeding Indian Ac Sc. 2002

47.     P K Gogoi, D P Phukan, D K DasSynthesis and biological activity of 2-methylpiperazine-dithiocarbamato and di-(2-methyl-5-chlorophenyl) dithiophosphinato derivatives of triorganotin(IV) chloride  Asian Journal of Chemistry (1999), 11(4), 1291-1295.  

48.     D K Das, O K Medhi – The role of heme propionate in controlling the redox potential of heme: Square Wave Voltammetry of protoporphyrinato IX iron(III) in aquaeous surfactant micelles.  J Inorganic Biochemistry, 70, 1998, 83-90.

 49.     D K Das, O K Medhi – Effect of surfactant and pH on the redox potential of microperoxidase 11 in aqueous micellar solutions.    Dalton Trans, 1998, 1693-1698.

 50.     D K Das, C Bhattaray, O K Medhi – Electrochemical behaviour of (protoporphyrinato IX) iron (III) encapsulated in aqueous surfactant micelles.  Dalton  Trans, 1997, 4713-4717.

 51.     S PattanayakD K Das, P Chakraborty, A Chakravorty Binding of thioether to trivalent Chromium. A family of CrS2N2O2complexes derived from acyclic ligands. Inorg Chem 34 (1995) 6556-6558.

 

Name of Seminar / Workshop

Host Institute

Date

1

Recent Developments in Synthesis and Catalysis-2017

Dibrugarh University

10-11 March 2017

2

South Asian Bi-Inorganic Conference

TIFR (Mumbai)-IACS (Kolkata)

07-11 January 2017

3

Special Lecture: Departmental Seminar

S N Bose National Centre of Basic Sciences, Kolkata

22-July 2016

4

Modern Trends in Chemistry (MTIC) XVI

Jadavpur University, Kolkata

03-05 December 2015

5

Contemporary Developments in Chemical Sciences 2015

Tezpur University, Tezpur

23-24 November 2015

6

New Approaches of basic Sciences towards the Development of Engineering and Technology 2015

Assam Don Bosco University, Guwahati

27-28 February 2015

7

Frontiers in Chemistry – 2013

North Bengal University

28 February, 2013

8

Bioengineering 2012

IIT – Guwahati

30 November, 2012

9

Conference on Photochemistry and Luminescence

IIT – Guwahati

9-10 March 2012

10

National seminar on surfactant and surface science

Tripura University

27-29 December 2011

11

National workshop on Emerging trends in nanochemistry

St. Anthony’s college, Shillong

20-21 September 2011

12

New approaches of basic sciences towards the development of engineering and technology

Don Bosco University, Guwahati

12-13 March 2009

Sl.No

Name of the Student

Title of thesis

Year

Current Position

1

Raben Ch. Roy

Electrochemical studies of the active center analogues of ferredoxins in aqueous surfactant micelles.

2007

Qlty Control Officer IOC-Kolkata

2

Rimki Bhattacharyya

Designing film modified electrodes as voltametric sensors having environmental and biological significance

2010

Asst. Prof.

Pandu College

3

Jitumoni Rajbongshi

Spectroscopic, Kinetic and Electrochemical studies of respiratory electron transfer proteins.

2010

Asst. Prof.

Bajali College

4

Pradyumna Goswami

Developing new voltametric and fluorescent sensors for dopamine and cholesterol.

2012

Asst. Prof.

GIMT-Guwahati

5

Priyanka Goswami

Developing dual fluorescent & electrochemical sensors for metal ions and pH dependent fluorescent molecular switches.

2013

P.O. Assam Gramin Vikash Bank

6

Babita Sarma

Synthesis, Characterisation & Electrochemistry of new copper based mono and binuclear complexes having bioinorganic importance.

2013

Asst. Teacher

High School

7

Kaku Dutta

Fluorescent and Electrochemical Sensing of Few Metal ions, Bifluoride and New pH Dependent Fluorescent Molecular Switch

2014

Sr. Adm. Asst.

Assam Secretariat

8

Partha Protim Biswas

Synthesis and characterization of complexes of Vanadium, Copper, Zinc and Ruthenium with Schiffs base ligands

2016

N V Rly H S School. Maligaon

9

Manash Jyoti Goswami

Synthesis, Characterization, Electrochemical Investigations and Bromoperoxidase  activity of a few Vanadium peroxo complexes

2016

Self Employed

10

Dhanada Sarmah

Electrochemical study of few active centre analogues of [Fe2S2] and [VFe3S4] type ferredoxins in charged solutions and film

2016

Subject Teacher

11

Jutika Kumar

New ferrocene linked fluorophores: Dual (Fluorescent /Electrochemical) sensor for a few heavy metal ions

2016

Research

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