pintu kumar kundu.jpg

Dr. Pintu Kumar Kundu

M.Sc (IIT M), Ph.D (BARC)

Research Assistant Professor

My Views and Philosophies

I consider myself as a Chemist in the contest of Research Activities. Because I believe in Interdisciplinary Research (boundary-less disciplines/subjects), which could pave the way of creating novel and cutting-edge science that would lead the outcomes to product stage. Moreover, without teaching the role of a faculty is incomplete. While Teaching is concerned, I would like to involve myself more on ‘Organic Chemistry’-related courses for the proper utilization of my expertise and basic knowledge. Teaching and research have long been debated with regard to their competition or complementarities in the educational environment. My philosophy matches here with the following - “educating students through conducting research”, instead of “educating students and conducting research”. That way I believe teaching objectives and research objectives better support one another.

Research Grants: DST-SERB Early Career Research Award (Status: In progress)

Academic Experiences

  • Research Assistant Professor, SRM University, Chennai, India (May, 2016 – date)
  • Institute Post Doctoral Fellow, Department of Chemistry, IIT Bombay, India (May, 2015 – May, 2016)
  • Post Doctoral Fellow, Chemistry, Department of Organic Chemistry, Weizmann Institute of Science, Israel (February, 2012 – February, 2015)

Educational Details

  • Ph.D, Chemistry, Bhabha Atomic Research Centre, Homi Bhabha National Institute, India (September, 2006 – January, 2012)
  • M.Sc. (CGPA =  8.5/10), Chemistry, Indian Institute of Technology (IIT), Madras, India (July, 2004–July, 2006)
  • B.Sc. (1st class), Chemistry (Honors), Physics, Mathematics, University of Calcutta, India (August, 2001 – July 2004)

Notable Research Achievements

Light-controlled Self-assembly of Non-photoresponsive Nanoparticles 

Nature Chemistry20157, 646-652 

News Highlights:   Organic molecular switches namely, protonated-merocyanine was shown to modify the pH of a  methanolic medium reversibly when exposed to visible light on or off - in such a way that the  nanoparticles which do not respond to external stimuli such as light undergo self-assemble /  deassemble process in a reversible fashion depending on the state of the external switch.  Performing the assembly process in thin films of gels allowed us to draw images that  spontaneously disappeared after a specific period of time.

Multi-responsive Nano-porous Materials 

Nature Communications, 2014, 5, 3588

Majority of organic molecular switches require conformational freedom to isomerize, and therefore, switching in the solid state is prohibited. Here we describe two families of nanoporous materials incorporating the spiropyran molecular switch. These materials exhibit a variety of interesting properties, including reversible photo-chromism and acidochromism, light-controlled capture and release of metal ions, as well reversible chromism induced by solvation/desolvation.

Thermal Equilibriation of an Axially Chiral Bis-spiropyran Leading to Cyclic Kinetics

J.Am. Chem. Soc., 2014, 136, 11276-11279

A compound combining the features of a molecular rotor and a photoswitch was synthesized and was shown to exist as three diastereomers, which interconvert via a reversible cyclic reaction scheme. Each of the three diastereomers was isolated, and by following the equilibration kinetics, activation barriers for all reaction were calculated. The results indicate that the properties of molecular switches depend heavily on their immediate chemical environment. The conclusions are important in the context of designing new switchable molecules and materials.

Controlling the Lifetimes of Dynamic Nanoparticle Aggregates by Spiropyran Functionalization

Nanoscale20168, 19280-19286

Novel light-responsive nanoparticles were synthesized by decorating the surfaces of gold and silver nanoparticles with a nitrospiropyran molecular photoswitch. Upon exposure to UV light in nonpolar solvents, these nanoparticles self-assembled to afford spherical aggregates, which disassembled rapidly when the UV stimulus was turned off.  By coating the nanoparticles with a spiropyran lacking the nitro group, a conceptually different self-assembly system, relying on a reversible proton transfer, was realized. The resulting particles spontaneously (in the dark) assembled into aggregates that could be readily disassembled upon exposure to blue light.

Reversible Trapping and Reaction Acceleration within Dynamically Self-assembling Nanoflask

 Nature Nanotechnology, 2016, 11, 82-88

News Highlights      

 

 

 

 

 

Current Research Interest

Photochromic Molecular Switches / Motors / Machines are one of the top most interests among a variety of scientists. Researchers are concerned about investigation of its basic properties as well as its application potential. It brings together scientists from a variety of domains in chemistry, physics and engineering. It requires a multidisciplinary approach, which bridges organic, inorganic and physical chemistry as well as molecular, supramolecular and solid state chemistry.

Photochromism is the reversible transformation of a chemical species (stimuli-responsive) between two forms having dissimilar absorption spectral profiles (and unalike properties), with at least one of the formation reactions being driven by light absorption and therefore the species is an “on-off” switch.

In my group, we are interested in the following areas…..

  • Photoswitchable Catalysis
  • Organic Photochromism
  • Organic Molecular Switches
  • Synthetic Organic Chemistry
  • Multifunctional Dynamic Materials
  • Applications 

Research Experiences

  • Synthetic Organic Chemistry
  • Organosilicon Chemistry
  • Bioactive Natural Product Synthesis
  • Stimuli-responsive Materials
  • Photo-responsive Nano Particles
  • Light-controlled Self-assembly
  • Applications of Light-responsive Materials
  • Heterogeneous Catalysis
  • Coming soon.................. 

Journal Publications (Best Five)

  • Hui Zhao, Soumyo Sen, T. Udayabhaskararao, Michal Sawczyk, Kristina Kučanda, Debasish Manna, Pintu K. Kundu, Ji-Woong Lee, Petr Kral, Rafal Klajn. Reversible occlusion and release with dynamically self-assembling nanoflasks. Nature Nanotech., 2016, 11, 82-88. (Cover Art) (IF 34)
  •  Pintu K. Kundu, Dipak Samanta, Ron Leizrowice, Baruch Margulis, Hui Zhao, Martin Borner, T. Udayabhaskararao, Debasish Manna, Rafal Klajn. Light-controlled self-assembly of non-photoresponsive nanoparticles. Nature Chem., 2015, 7, 646–652. (IF 25.3)
  •  Pintu K. Kundu, Gregory L. Olsen, Vladimir Kiss, Rafal Klajn. Nanoporous frameworks exhibiting multiple stimuli responsiveness. Nature Commun., 2014, 5, 3588. (IF 11.47)
  •  Pintu K. Kundu, Avishai Lerner, Kristina Kučanda, Gregory Leitus, Rafal Klajn. Cyclic kinetics during thermal equilibration of an axially chiral bis-spiropyran. J. Am. Chem. Soc., 2014, 136, 11276–11279. (IF 12.1)
  •  Pintu K. Kundu, Rafal Klajn. Watching single molecules move in response to light. ACS Nano, 2014, 8, 11913–11916. (IF 12.9)

Other Journal Publications

  • Pintu K. Kundu, Sanjib Das, Johannes Ahrens, Rafal Klajn. Controlling the lifetimes of dynamic nanoparticle aggregates by spiropyran functionalization. Nanoscale, 2016, 8, 19280–19286.
  • Pintu K. Kundu, Mahak Dhiman, Atanu Modak, Arindam Chowdhury, Vivek Polshettiwar, Debabrata Maiti. Fibrous-silica supported palladium-nanoparticles (KCC-1-PEI/Pd): A sustainable nanocatalyst for decarbonylation reactions. ChemPlusChem, 2016, 81, 1142-1146
  •  T. Udayabhaskararao, Pintu K. Kundu, Johannes Ahrens, Rafal Klajn. Reversible photoisomerization of spiropyran on the surfaces of Au25 nanoclusters. ChemPhysChem, 2016, 17, 18051809.
  •  Nadav Amdursky, Pintu K. Kundu, Johannes Ahrens, Dan Huppert, Rafal Klajn. Noncovalent interactions with proteins modify the physicochemical properties of a molecular switch. ChemPlusChem, 2016, 81, 44–48.
  •  Thomas Moldt, Daniel Brete, Daniel Przyrembel, Sanjib Das, Joel R. Goldman, Pintu K. Kundu, Cornelius Gahl, Rafal Klajn, Martin Weinelt. Tailoring the properties of surface immobilized azobenzenes by monolayer dilution and surface curvature. Langmuir, 2015, 31, 1048–1057.
  • Tal Ely, Sanjib Das, Wenjie Li, P intu K. Kundu, Einat Tirosh, David Cahen, Ayelet Vilan, Rafal Klajn. Photocontrol of electrical conductance using a non-symmetrical azobenzene dithiol. Synlett, 2013, 24, 2370–2374.
  • Pintu K. Kundu, Sunil K. Ghosh. Silicon-mediated asymmetric synthesis of fagomine and 3,4-di-epifagomine. Tetrahedron: Asymmetry, 2011, 22, 1090–1096.
  • Pintu K. Kundu, Sunil K. Ghosh. Magnesium-induced regiospecific C-silylation of suitably substituted enoates and dienoates. Tetrahedron, 2010, 66, 8562–8568.
  • Pintu K. Kundu, Sunil K. Ghosh. Magnesium-mediated intramolecular reductive coupling: a stereoselective synthesis of C2-symmetric 3,4-bis-silyl-substituted adipic acid derivatives. Organic & Biomolecular Chemistry, 2009, 7, 4611–4621.
  • Pintu K. Kundu, Rekha Singh, Sunil K. Ghosh. Silicon assisted diversified reaction of a β-silylmethylene malonate with dimethylsulfoxonium methylide. Journal of Organometallic Chemistry, 2009, 694, 382–388.

Bulletins Publication

  •  Pintu K. Kundu, Sunil K. Ghosh. Functionalized organosilicon compounds: synthesis and applications. Society for Materials Chemistry Bulletin, 2012, 3, 13–18.

Symposiums and Conferences

  • Pintu K. Kundu, Avishai Lerner, Gregory Leitus, Rafal Klajn. Axially chiral bis-spiropyran: synthesis, isolation and studying thermal isomerization. Organic Chemistry Conference, April 09, 2014, Ramot, Israel (Invited Talk).
  • The Beilstein Organic Chemistry Symposium, September 24-26, 2014, Yacht hotel Chiemsee, Prien (Chiemsee), Germany.
  • Pintu K. Kundu, Rafal Klajn. Studying thermal racemization of spiropyran using an axially chiral model compound. International Symposium on Photochromism, September 23-26, 2013, Berlin, Germany (Poster).
  • The 78th Annual Meeting of the Israel Chemical Society and the Exhibition, February 12-13, 2013, Dan Panorama Hotel, Tel-Aviv, Israel.
  • Pintu K. Kundu, Sunil K. Ghosh. Silicon-mediated asymmetric synthesis of some bio-active molecules. National Conference on Chirality, 2011, Vadodara, India (Talk).
  • Pintu K. Kundu, Sunil K. Ghosh. Organo-silicon compounds in diversified organic synthesis. Chemistry Research Scholars' Meet, 2011, IGCAR, Kalpakkam, India (Talk).
  • Pintu K. Kundu, Sunil K. Ghosh. Diversity oriented synthetic strategies for functionalized organo-silicon compounds and their applications. 23rd Research Scholars’ Meet, 2011, Mumbai, India (Talk).
  • Pintu K. Kundu, Sunil K. Ghosh. Diversity oriented synthesis of functionalized small molecules using organo-silicon compounds. 3rd DAE-BRNS International Symposium on Materials Chemistry, 2010, Mumbai, India (Poster).
  • Pintu K. Kundu, Sunil K. Ghosh. Regiospecific C-silylation of suitably substituted enoates and stereoselective synthesis of C2-symmetric 3,4-bis-silyl-substituted adipic acid derivatives by Mg/silyl chloride/DMF system. 5th Mid-Year Chemical Research Society of India Symposium in Chemistry, 2010, Thiruvananthapuram, India (Poster).
  • Pintu K. Kundu, Sunil K. Ghosh. Stereoselective synthesis of C2-symmetric 3,4-bis-silyl-substituted adipic acid derivatives by a magnesium-mediated reductive coupling. 5th J-NOST Conference for Research Scholars, 2009, IIT-Kanpur, India (Talk).
  • Pintu K. Kundu, Rekha Singh, Sunil K. Ghosh. Silicon assisted diversified reaction of a β-silylmethylenemalonate with dimethylsulfoxoniummethylide.2nd DAE-BRNS International Symposium on Materials Chemistry, 2008, Mumbai, India (Poster).

Invited Talks in India (Selected)

  • Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal

  • Department of Chemical Sciences, TIFR, Mumbai

  • Department of Chemistry, Indian Institute of Technology (IIT) Delhi

  • TIFR Centre for Interdisciplinary Sciences (TCIS), Hyderabad

  • Indian Institute of Science Education and Research (IISER) Kolkata

  • Department of Chemistry, Indian Institute of Technology (IIT) Kharagpur

  • Department of Chemistry, Indian Institute of Technology (IIT) BHU

  • Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali

2017-2018

5. Organic Chemistry-III: M.Sc., III Semester, SRM University ​

[Spectroscopy of Organic Compounds: UV-visible spectroscopy, Infrared spectroscopy, 1H NMR spectroscopy, 13C NMR spectroscopy and Mass Spectrometry

2016-2017

4. Organic Chemistry-II: M.Sc., II Semester, SRM University

[Addition reactions, Elimination reactions, Hydrolysis and esterifications, Rearrangements, Photochemistry, and Pericyclic reactions

3. Principles of Environmental Science: B.Tech. II Semester, ECE, SRM University

2. Principles of Environmental Science: B.Tech. I Semester, CSE, SRM University

2015-2016

1. Chemistry Practical Classes: B.Tech, IIT Bombay

Ph.D and Post Doctoral Position: Suitable candidate may contact to PI 

 

Contact

Dr. Pintu Kumar Kundu (Ph.D., Chemistry)
Research Assistant Professor 
Research Institute & Department of Chemistry
Office: R-40, 13th Floor, University Main Building
SRM University, Kattankulathur
Chennai – 603 203
Ph: +91-44-2471-7579
Mob: 07738702826  
Email: pintukumar.k@ktr.srmuniv.ac.in
Email: pintukkundu@gmail.com