List of Publications


[2018] [2017] [2016] [2015] [2014]
[2013 – 2009] [2008 – 2004] [2003 – 1999] [1998 – 1994] [1993 – 1987]



1. A Cyclometalated Ir(III) Complex as Lysosome Targeted Photodynamic Therapeutic Agent for Integrated Imaging and Therapy in Cancer Cells

K. V. Sudheesh, P. S. Jayaram, A. Samanta, K. S. Bejoymohandas, R. S. Jayasree, A. Ajayaghosh* Chem. -Eur. J. 2018, 24, 10999–11007. (Hot Article, highlighted with a Frontispiece)

Full Text: LINK

2. Book Chapter: “Stimuli-Responsive Supramolecular Gels”

R. K. Mishra, S. Das, B. Vedhanarayanan, G. Das, V. K. Praveen,* A. Ajayaghosh* in Molecular Gels: Structure and Dynamics, Weiss, R. G. (Ed.) Monographs in Supramolecular Chemistry No. 25, RSC, Chapter 7, 190–226, 2018.

Full Text: LINK

3. Real Time Imaging and Dynamics of Hippocampal Zn2+ under Epileptic Condition Using a Ratiometric Fluorescent Probe

H. Santhakumar, R. V. Nair, D. S. Philips, S. J. Shenoy, A. Thekkuveettil, A. Ajayaghosh,* R. S. Jayasree* Sci. Rep. 2018, 8, 9069

Full Text: LINK (Open Access)

4. A Hybrid Organogel of a Low Band Gap Diketopyrrolopyrrole with PC71BM: Phase Separated Morphology and Enhanced Photoconductivity

S. Ghosh, S. Das, A. Saeki, V. K. Praveen, S. Seki, A. Ajayaghosh* ChemNanoMat 2018, 4, 831–836. Highlighted with a Cover Picture (Part of   Special Issue on Supramolecular Nanostructures)

Full Text: LINK (Open Access)

5. Supramolecular Reassembly of Self-Exfoliated Ionic Covalent Organic Nanosheets for Label-Free Detection of dsDNA

A. Mal, R. K. Mishra, V. K. Praveen, M. A. Khayum, R. Banerjee, A. Ajayaghosh*  Angew. Chem., Int. Ed. 2018, 57, 8443–8447. (VIP Article)

Full Text: LINK

6. Hybrid Materials of 1D and 2D Carbon Allotropes and Synthetic π-Systems

B. Vedhanarayanan, V. K. Praveen, G. Das, A. Ajayaghosh* NPG Asia Materials 2018, 10, 107-126.  (Invited Review Article)

Full Text: LINK (Open Access)

7. Stepwise Control of Host-Guest Interaction Using a Coordination Polymer

R. D. Mukhopadhyay, G. Das, A. Ajayaghosh* Nat. Commun. 2018, 9, 1987

Full Text: LINK (Open Access)

8. Transforming a C3-Symmetrical Liquid Crystal to a π-Gelator by Alkoxy Chain Variation

A. Sandeep, V. K. Praveen, D. S. Shankar Rao, S. Krishna Prasad, A. Ajayaghosh* ACS Omega 2018, 3, 4392–4399. (Invited Article)

Full Text: LINK (Open Access)

9. Self-Assembly of Bodipy-Derived Extended π-Systems

S. Cherumukkil, B. Vedhanarayanan, G. Das, V. K. Praveen, A. Ajayaghosh* Bull. Chem. Soc. Jpn. 2018, 91, 100–120. (Invited Review) Highlighted with an inside cover – Part of Vol. 90 Commemorative Account: Self-Organization)

Full Text: LINK (Open Access)

10. Photokinetic Study on Remarkable Excimer Phosphorescence from Heteroleptic Cyclometalated Platinum(II) Complexes Bearing a Benzoylated 2-Phenylpyridinate Ligand

N. Okamura, T. Maeda, H. Fujiwara, A. Soman, K. N. N. Unni, A. Ajayaghosh, S. Yagi* Phys. Chem. Chem. Phys. 2018, 20, 542–552.

Full Text: LINK

11. pH-Controlled Nanoparticles Formation and Tracking of Lysosomal Zinc Ions in Cancer Cells by Fluorescent Carbazole-Bipyridine Conjugates

K. V. Sudheesh, M. M. Joseph, D. S. Philips, A. Samanta, K. K. Maiti, A. Ajayaghosh*  ChemistrySelect 2018, 3, 2416–2422.

Full Text: LINK


 2017[to top]

1. Creation of ‘Rose Petal’ and ‘Lotus Leaf’ Effects on Alumina by Surface Functionalization and Metal Ion Coordination

R. D. Mukhopadhyay, B. Vedhanarayanan, A. Ajayaghosh* Angew. Chem., Int. Ed. 2017, 56, 16018–16022. (Hot Paper)

Full Text: LINK


2. Supramolecular Nanocomposite as Near Infrared Transmitting Optical Filter for Security and Forensic Applications

S. Ghosh, S. Cherumukkil, C. H. Suresh, A. Ajayaghosh* ACS Adv. Mater. 2017, 29, 1703783. (highlighted in Advanced Science News and The Hindu News Paper)

Full Text: LINK

3. Unsymmetrical Squaraine Dye based Chemical Platform for Multiple Analyte Recognition

D. S. Philips, S. Ghosh, K. V. Sudheesh, C. H. Suresh, A. Ajayaghosh* Chem. -Eur. J. 2017, 23, 17973–17980

Full Text: LINK

4. Helix to Super-Helix Transition in p-Systems Self-assembly: Superseding of Molecular Chirality at Hierarchical Level

M. Hifsudheen, R. K. Mishra, B. Vedhanarayanan, V. K. Praveen,* A. Ajayaghosh* Angew. Chem. Int. Ed. 2017, 56, 12634–12638

Full Text: LINK

5. An Unprecedented Amplification of Near-Infrared Emission in a Bodipy Derived p-System by Stress or Gelation

S. Cherumukkil, S. Ghosh, V. K. Praveen, A. Ajayaghosh* Chem. Sci. 2017, 8, 5644–5649.

Full Text: LINK

6. A Ratiometric Near Infrared Fluorogen for the Real Time Visualization of Intracellular Redox Status during Apoptosis

G. Saranya, P. Anees, M. M. Joseph, K. K. Maiti*, A. Ajayaghosh* ACS Chem. -Eur. J. 2017, 23, 7191–7195. (Hot Paper)

Full Text: LINK

7. Exfoliation of Reduced Graphene Oxide with Self-Assembled π-Gelators for Improved Electrochemical Performance

B. Vedhanarayanan, B. Babu, M. M. Shaijumon, A. Ajayaghosh* ACS Appl. Mater. Interfaces 2017, 9, 19417–19426.   

Full Text: LINK

8. Book Chapter: “Self-Assembly in Sensor Nanotechnology” 

P. Anees V. K. Praveen, K. K. Kartha, A. Ajayaghosh* in Comprehensive Supramolecular Chemistry II , Vol. 9, Raston, C. (Ed.), Elsevier Ltd., 2017.

Full Text: LINK

9. Nanosheets of Organic Molecular Assembly from Aqueous Medium Exhibit High Solid-State Emission and Anisotropic Charge Carrier Mobility

S. Ghosh, D. S. Philips, Akinori Saeki, A. AjayaghoshAparicio, S. Cherumukkil, A. Ajayaghosh* and L. Sánchez* Adv. Mater. 2017, 29, 1605408.   

Full Text: LINK

 2016[to top]

1. Color-Tunable Cyano-Substituted Divinylene Arene Luminogens as Fluorescent pi-Gelators

F. Aparicio, S. Cherumukkil, A. Ajayaghosh* and L. Sánchez*Langmuir 2016, 32, 284–289.   

Full Text: LINK


2. A Three-Photon Active Organic Fluorophore for Deep Tissue Ratiometric Imaging of Intracellular Divalent Zinc

D. S. Philips, S. Sreejith*, T. He, N. V. Menon, P. Anees, J. Mathew, S. Sajikumar, Y. Kang, M. C. Stuparu, H. Sun*, Y. Zhao* and A. Ajayaghosh*Chem. Asian J. 2016 ,11, 1523–1527.

Full Text: LINK


3. Real Time Monitoring of Aminothiol Level in Blood Using a Near-Infrared Dye Assisted Deep Tissue Fluorescence and Photoacoustic Bimodal Imaging

P. Anees, J. Joseph, S. Sreejith, N. V. Menon, Y. Kang, S. W. K. Yu, A. Ajayaghosh*, Y. Zhao*Chem. Sci. 2016,7, 4110–4116.

Full Text: LINK(Open Access)


4. Supercoiled Fibres of Self-Sorted Donor-Acceptor Stacks: A Turn-Off/Turn-On Platform for Sensing Volatile Aromatic Compounds

S. Anjamkudy, V. K. Praveen, K. K. Kartha, V. Karunakaran, A. Ajayaghosh*Chem. Sci. 2016, 7, 4460–4467.

Full Text: LINK(Open Access)


5. The Chemistry and Applications of π-Gels

S.Ghosh, V. K. Praveen, A. Ajayaghosh*Annu. Rev. Mater. Res.2016, 46, 235–262 , DOI: 10.1146/annurev-matsci-070115-031557.

Full Text: LINK


6. Conjugated Random Donor-Acceptor Copolymers of [1]Benzothieno[3,2-b]-benzothio-phene and Diketo-pyrrolopyrrole Units for High Performance Polymeric Semiconductor Applications

V. S. Nair, J. Sun, P. Qi, S. Yang, Z. Liu*, D. Zhang*, A. Ajayaghosh* Macromolecules 2016, 49, 6334–6342.

Full Text: LINK

7. Formation of Coaxial Nanocables with Amplified Supramolecular Chirality through an Interaction between Carbon Nanotubes and a Chiral π-Gelator

B. Vedhanarayanan, V. S. Nair, V. C. Nair, A. Ajayaghosh*Angew. Chem., Int. Ed. 2016, 55, 10345–10349.

Full Text: LINK

8. A π-Gel Scaffold for Assembling Fullerene to Photoconducting Supramolecular Rods Non-Equilibrium Self-Assembly of C60 in a π-Gel

V. S. Nair, R. D. Mukhopadhyay, A. Saeki, S. Seki, A. Ajayaghosh*Science Advances 2016, 2, e1600142.

Full Text: LINK(Open Access)

9. A Protein-Dye Hybrid System as Narrow Range Tunable Intracellular pH Sensor

P. Anees, K. V. Sudheesh, P. Jayamurthy, A. R. Chandrika, R. V. Omkumar, A. Ajayaghosh*Chem. Sci. 2016, 7, 6808–6814

Full Text: LINK(Open Access)


 2015[to top]

1. Light Driven Mesoscale Assembly of a Coordination Polymeric Gelator into Flowers and Stars with Distinct Properties

R. D. Mukhopadhyay, V. K. Praveen, A. Hazra, T. K. Maji, A. Ajayaghosh*Chem. Sci. 2015, 6, 6583–6591.

Full Text: LINK (Open Access)


2. Book Chapter : “Metallosupramolecular Materials for Energy Applications: Light-Harvesting”

V. K. Praveen, A. Ajayaghosh*, in Functional Metallosupramolecular Materials, J. G. Hardy, F. H. Schacher, (Eds.),RSC Smart Materials 2–15, 2015. 

 Full Text: LINK


3. Pyridyl-Amides as a Multimode Self-assembly Driver for the Design of Stimuli Responsive Pi-Gelator

K. K. Kartha, V. K. Praveen, S. S. Babu, S. Cherumukkil, A. Ajayaghosh*Chem.Asian J. 2015, 10, 2250–2256.(Part of Special Board Member Issue Published on the Occasion of 10th Anniversary of Chem.Asian J.)

Full Text: LINK (Open Access)


4. Near-IR Squaraine Dye-Loaded Gated Periodic Mesoporous Organosilica for Photo-Oxidation of Phenol in a Continuous-Flow Device

P. Borah, S. Sreejith, P. Anees, N. V. Menon, Y. Kang, A. Ajayaghosh*, Y. Zhao*Science Advances 2015, 1, e1500390.

Full Text: LINK (Open Access)


5. Living Supramolecular Polymerization

R. D. Mukhopadhyay, A. Ajayaghosh*Science 2015, 349, 241–242 (Perspective).

Full Text: LINK


6. Fluorescence Imaging Assisted Photodynamic Therapy Using Photosensitizer-Linked Gold Quantum Clusters

L. V. Nair, S. S. Nazeer, R. S. Jayasree*, A. Ajayaghosh*ACS Nano 2015, 9, 5825–5832.

Full Text: LINK


7. Water as a Self-Erasable Security Marker on a Slippery Fluorescent Molecular Assembly

R. Thirumalai, R. D. Mukhopadhyay, V. K. Praveen, A. Ajayaghosh*Scientific Reports 2015, 5, 9842. 

Full Text: LINK (Open Access)


8. Organic Donor-Acceptor Assemblies to Coaxial p–n Heterojunctions with High Photoconductivity 

S. Prasanthkumar, S. Ghosh, V. C. Nair, A. Saeki, S. Seki, A. Ajayaghosh*
Angew. Chem. Int. Ed. 2015, 54, 946–950. 

Full Text: LINK


9. Detection of Nitroaromatic Explosives with Fluorescent Molecular Assemblies and pi-Gels

K. K. Kartha, A. Sandeep, V. K. Praveen, A. Ajayaghosh*
Chem. Rec. 2015, 15, 252-265 (Review). 

Full Text: LINK (Open Access)



 2014[to top]


  • Self-Assembled Near-Infrared Dye Nanoparticles as a Selective Protein Sensor by Activation of a Dormant Fluorophore
    P. Anees, S. Sreejith, A. Ajayaghosh*J. Am. Chem. Soc. 2014, 136, 13233–13239.                                                 Full Text: LINK
  • Photoresponsive Metal-Organic Materials: Exploiting the Azobenzene Switch.
    R. D. Mukhopadhyay, V. K. Praveen, A. Ajayaghosh*Mater. Horiz. 2014, 1, 572–576 (Minireview).                         Full Text: LINK
  • A Carbazole–Fluorene Molecular Hybrid for Quantitative Detection of TNT Using a Combined Fluorescence and Quartz Crystal Microbalance Method.
    K. K. Kartha, A. Sandeep, V. C. Nair, M. Takeuchi*, A. Ajayaghosh*Phys. Chem. Chem. Phys. 2014, 16, 18896–18901.                                                                                                                                                             Full Text: LINK
  • Electrochemically Synthesized Partially Reduced Graphene Oxide Modified Glassy Carbon Electrode for Individual and Simultaneous Voltammetric Determination of Ascorbic Acid, Dopamine and Uric Acid
    P. K. Aneesh, S. R. Nambiar, T. P. Rao*, A. AjayaghoshAnal. Methods 2014, 6, 5322–5330.                                    Full Text: LINK
  • A Ratiometric Fluorescent Molecular Probe with Enhanced Two-Photon Response upon Zn2+ Binding for in vitro and in vivo Bioimaging.
    K. P. Divya, S. Sreejith, A. Pichandi, Y. Kang, Q. Peng, S. K. Maji, Y. Tong, H. Yu*, Y. Zhao*, P. Ramamurthy, A. Ajayaghosh*Chem. Sci. 2014, 5, 3469–3474.                                                                                                        Full Text: LINK
  • Cyclotriphosphazene Appended Porphyrins and Fulleropyrrolidine Complexes as Supramolecular Multiple Photosynthetic Reaction Centers: Steady and Excited States Photophysical Investigation.
    V. S. Nair, Y. Pareek, V. Karunakaran*, M. Ravikanth*, A. Ajayaghosh*Phys. Chem. Chem. Phys. 2014, 16, 10149–10156. (Part of PCCP’s 15th Anniversary Issue).                                                                                                 Full Text: LINK
  • A Fluorescent Molecular Probe for the Identification of Zinc and Cadmium Salts by Excited State Charge Transfer Modulation.
    K. P. Divya, S. Savithri, A. Ajayaghosh*Chem. Commun. 2014, 50, 6020–6022.                                                  Full Text: LINK
  • Synthesis of a Gold Atomic Cluster–Chitosan Nanocomposite Film Modified Gold Electrode for Ultra-Trace Determination of Mercury.
    P. K. Aneesh, S. R. Nambiar, T. P. Rao*, A. Ajayaghosh*Phys. Chem. Chem. Phys. 2014, 16, 8529–8535.                 Full Text: LINK
  • Aligned 1‐D Nanorods of a Pi‐Gelator Exhibit Molecular Orientation and Excitation Energy Transport Different from Entangled Fiber Networks.
    K. Sakakibara, P. Chithra, B. Das, T. Mori, M. Akada, J. Labuta, T. Tsuruoka*, S. Maji, S. Furumi, L. K. Shrestha, J. P. Hill, S. Acharya*, K. Ariga*, A. Ajayaghosh*J. Am. Chem. Soc. 2014, 136, 8548–8551.                                        Full Text: LINK
  • Effect of the Bulkiness of the End Functional Amide Groups on the Optical, Gelation, and Morphological Properties of Oligo(p-phenylenevinylene) Pi–Gelators.
    S. S. Babu, V. K. Praveen, K. K. Kartha, S. Mahesh, A. Ajayaghosh*Chem. –Asian J. 2014, 9, 1830–1840. (Highlighted by a “Cover Picture”).                                                                                                                         Full Text: LINK
  • Oligo(phenylenevinylene) Hybrids and Self-Assemblies: Versatile Materials for Excitation Energy Transfer.
    V. K. Praveen*, C. Ranjith, E. Bandini, A. Ajayaghosh*, N. Armaroli*Chem. Soc. Rev. 2014, 43, 4222–4242. (Part of Themed Issue on Supramolecular Photochemistry Dedicated to Prof. N. J. Turro)                                                       Full Text: LINK

  • Functional Pi‐Gelators and Their Applications.
    S. S. Babu, V. K. Praveen, A. Ajayaghosh*Chem. Rev. 2014, 114, 1973–2129. (A Comprehensive Review on Chromophore Based Supramolecular Gelators).                                                                                                       Full Text: LINK


 2013 – 2009[to top]


  • Luminescent and conductive supramolecular polymers obtained from an N-annulated perylenedicarboxamideF. García, J. Buendía, S.Ghosh, A. AjayaghoshL. Sánchez, Chem. Commun., 2013,49, 9278-9280
  • Ultrasound Stimulated Nucleation and Growth of Dye Assembly into Extended Gel NanostructuresJ. M. Malicka, A. Sandeep, F. Monti, E. Bandini, M. Gazzano, C. Ranjith, V. K. Praveen, A. Ajayaghosh, N. ArmaroliChem. Eur. J. 2013 19, 12991-13001.
  • Chain Folding Controlled by an Isomeric Repeat Unit: Helix Formation versus Random Aggregation in Acetylene-Bridged Carbazole–Bipyridine Co-OligomersK. P. Divya, S. Sreejith, C. H. Suresh, D. S. Philips, A. AjayaghoshChem. Asian. J. 2013, 8, 8(7), 1579-1586
  • A Near Infrared Fluorescent Nanosensor (AuC@Urease) for the Selective Detection of Blood UreaL. V. Nair, D. S. Philips, R. S. Jayasree, A. AjayaghoshSmall, 2013, 9, 2673-2677.
  • Guided Supramolecular Polymerization of Oligo(p-phenylenevinylene) Functionalized BismelaminesM. Yamauchi, S. Kubota, T. Karatsu, A. Kitamura, A. Ajayaghosh, S. YagaiChem. Commun., 2013, 49, 4941-4943.
  • Supramolecular Gels and Functional Materials Research in IndiaK. K. Kartha, R. D. Mukhopadhyay, A. AjayaghoshCHIMIA, 2013, 67, 47.
  • Heteroaromatic Donors in Donor-Acceptor-Donor Based Fluorophores Facilitates Zinc Ion Sensing and Cell ImagingS. Sreejith, K. P. Divya, P. Jayamurthy, J. Mathew, V. N. Anupama, D. S. Philips, P. Anees, A. AjayaghoshPhotochem. Photobiol. Sci. 2012, 11, 1715-1723.
  • Thermally Assisted Photonic Inversion of Supramolecular HandednessA. Gopal, M. Hiffsudheen, S. Furumi, M. Takeuchi, A. AjayaghoshAngew. Chem. Int. Ed. 2012, 51, 10505-10509 (Cover page article).
  • Key Role of Solvent Type in OrganogelationD. Dasgupta, A. Thierry, C. Rochas, A. Ajayaghosh, J. M. GuenetSoft Matter. 2012, 8, 8714-8721.
  • Oligo(p-phenyleneethynylene) Derived Super ?-Gelators with Tunable Emission and Selfassembled Polymorphic StructuresA. Gopal, R. Varghese, A. AjayaghoshChem. Asian. J. 2012, 7, 2061-2067 (Front cover page article).
  • Light-Induced Ostwald Ripening of Organic Nanodots to RodsS. Mahesh, A, Gopal, R. Thirumalai, A. AjayaghoshJ. Am. Chem. Soc. 2012, 134, 7227-7230.
  • Solvent-free Luminescent Organic LiquidsS. S. Babu, J. Aimi, H. Ozawa, N. Shirahata, A. Saeki, S. Seki, A. Ajayaghosh, H. Moehwald, T. NakanishiAngew. Chem. Int. Ed. 2012, 51, 3391-3395.
  • Attogram Sensing of TNT with a Self-assembled Molecular GelatorK. K. Kartha, S. S. Babu, S. Srinivasan, A. AjayaghoshJ. Am. Chem. Soc. 2012, 134, 4834-4841.
  • Synthesis and Properties of Amphiphilic Photoresponsive Gelators for Aromatic SolventsR. Rajaganesh, A. Gopal, T. M. Das, A. AjayaghoshOrg. Lett. 2012,14, 748-751.
  • Self-assembled Gelators for Organic ElectronicsS. S. Babu, S. Prasanthkumar, A. AjayaghoshAngew. Chem. Int. Ed. 2012, 51, 1766-1776.
  • Molecular Logic Gates: Recent Advances and PerspectivesS. Sreejith, A. AjayaghoshInd. J. Chem. 2012, 51A, 47-56.
  • Solvent mediated Fiber Growth in OrganogelsD. Dasgupta, S. Srinivasan, C. Rochas, A. AjayaghoshJ. M. Guenet, Soft Matter, 2011, 7, 9311-9315.
  • Interaction of Carbon Nanotubes and Small Molecules, in “Supramolecular Soft Matter. Applications in Materials and Organic Electronics”S. Srinivasan, A. AjayaghoshJohn Wiley & Sons, 2011, 381-406
  • Multiple Analyte Response and Molecular Logic Operations by Excited-State Charge-Transfer Modulation in a Bipyridine Integrated FluorophoreS. Sreejith, K. P. Divya, T. K. Manojkumar, A. AjayaghoshChem. Asian J. 2011, 6 (2), 430–437.
  • Excitation energy migration in oligo(p-phenylenevinylene) based organogels: Structure-property relationship and FRET efficiencyC. Vijayakumar, V. K. Praveen, K. K. Kartha, A. AjayaghoshPhysical Chemistry Chemical Physics, 2011, 13, 4942-4949.
  • Insight into the gelation habit of oligo(para-phenylene vinylene) derivatives:effect of end-groupsD. Dasgupta, S. Srinivasan, C. Rochas, A. Thierry, A. Schroder, A. AjayaghoshJ. M. Guenet, Soft Matter, 2011,7, 2797-2804
  • A Complementary Guest Induced Morphology Transition in a Two-component Multiple H-bonding Self-assemblyT. Tazawa, S. Yagai, Y. Kikkawa, T. Karatsu, A. Kitamura, A. AjayaghoshChem. Commun. 2010, 46, 1076-1078.
  • Solution Phase Epitaxial Self-assembly and High Charge-carrier Mobility Nanofibers of Semiconducting Molecular GelatorsS. Prasanthkumar, A. Saeki, S. Seki, A. AjayaghoshJ. Am. Chem. Soc. 2010,132, 8866-8867.
  • Rational Design of Nanofibers and Nanorings through Complementary Hydrogen-Bonding Interactions of functional ? systemsS. Yagai, H. Aonuma, Y. Kikkawa, S. Kubota, T. Karatsu, A. Kitamura,S. Mahesh, A. AjayaghoshChem. Eur. J. 2010, 16, 8652-8661.
  • A Zn2+-Specific Fluorescent Molecular Probe for the Selective Detection of Endogenous Cyanide in Biorelevant SamplesK. P. Divya, S. Sreejith, B. Balakrishna, P. Jayamurthy, P. Anees, A. AjayaghoshChem. Commun. 2010, 46, 6069-6071
  • Self-Assembly of Thienylenevinylene Molecular Wires to Semiconducting Gels with Doped Metallic ConductivityS. Prasanthkumar, A. Gopal, A.AjayaghoshJ. Am. Chem. Soc. 2010, 132, 13206-13207.
  • Conformational Control in a Bipyridine Linked pi-conjugated Oligomers: Cation Mediated Helix Unfolding and RefoldingK. P. Divya, S. Sreejith, C. H. Suresh, A. AjayaghoshChem Commun. 2010, 46, 8392-8394.
  • Excited State Processes in Linear ?-System-Based OrganogelsS. S. Babu, K. K. Kartha, A. AjayaghoshJ. Phys. Chem. Lett., 2010,1 (23), 3413–3424
  • Reversible Self-assembly of Entrapped Fluorescent Gelators in Polymerized Styrene Gel Matrix: Erasable Thermal Imaging via Recreation of Supramolecular ArchitecturesS. Srinivasan, P. A. Babu, S. Mahesh, A. AjayaghoshJ. Am. Chem. Soc. 2009, 131, 15122–15123.
  • Role of Complementary H-Bonding Interaction of a Cyanurate in the Self-assembly and Gelation of Melamine Linked Tri(p-phenyleneethynylene)S. Mahesh, R. Thirumalai, S. Yagai, A. Kitamura and A. AjayaghoshChem. Commun. 2009, 5984 (with cover page).
  • Anisotropic Self-Assembly of Photoluminescent Oligo(p-phenylenevinylene) Derivatives in Liquid Crystals: An Effective Strategy for the Macroscopic Alignment of ?-GelsY. Hirai, S. S. Babu, V. K. Praveen, T. Yasuda, A. Ajayaghosh and T. KatoAdv. Mater. 2009, 21, 4029.
  • Hybrid Thermoreversible Gels from Covalent Polymers and OrganogelsD. Dasgupta, S. Srinivasan, C. Rochas, A. AjayaghoshJ. M. GuenetLangmuir, 2009, 25, 8593.
  • Probing the Initial Stages of Molecular Organization of Oligo(p-phenylenevinylene) Assemblies with Monolayer Protected Gold NanoparticlesV. R. R. Kumar, V. Sajini, T. S. Sreeprasad, V. K. Praveen, A. Ajayaghosh, T. PradeepChem. Asian J. 2009, 4, 840.
  • Solvent-Directed Self-Assembly of p Gelators to Hierarchical Macroporous Structures and Aligned Fiber BundlesS. S. Babu, S. Mahesh, K. K. Kartha, A. AjayaghoshChem. Asian J. 2009, 4, 824
  • RGB Emission through Controlled Donor Self-Assembly and Modulation of Excitation Energy Transfer: A Novel Strategy to White-Light- Emitting OrganogelsC. Vijayakumar, V. K. Praveen, A. AjayaghoshAdv. Mater. 2009, 21, 2059.

  • Reversible Transformation between Rings and Coils in a Dynamic Hydrogen-Bonded Self-AssemblyS. Yagai, S. Kubota, H. Saito, K. Unoike, T. Karatsu, A. Kitamura, A. Ajayaghosh, M. Kanesato, Y. KikkawaJ. Am. Chem. Soc. 2009, 131, 5408.


 2008 – 2004[to top]


  • Noncovalent Macromolecular Architectures of Oligo(p-phenylenevinylene)s (OPVs). Role of End Functional Groups on the gelation of Organic SolventsS. S. Babu, V. K. Praveen, and A. AjayaghoshMacromol. Symp. 2008, 273, 25.
  • Helical supramolecular architectures of self-assembled linear p-SystemsV. K. Praveen, S. S. Babu, C. Vijayakumar, R.Varghese, and A. AjayaghoshBull. Chem. Soc. Jpn. 2008, 81, 1196.
  • Self-Assembly of Oligo(para-phenylenevinylene)s through Arene-Perfluoro Interactions: ? Gels with Longitudinally Controlled Fiber Growth and Supramolecular Exciplex-Mediated Enhanced EmissionS. S. Babu, V. K. Praveen, S. Prasanthkumar, and A. AjayaghoshChem. Eur. J. 2008, 14, 9577.
  • A Near-Infrared Squaraine Dye as a Latent Ratiometric Fluorophore for the Detection of Aminothiol Content in Blood PlasmaS. Sreejith, K. P. Divya, and A. AjayaghoshAngew. Chem. Int. Ed. 2008, 47, 7883.
  • Solvent Induced Aggregation and Cation Controlled Self-assembly of Tripodal Squaraine Dyes: Optical, Chiroptical and Morphological PropertiesP. Chithra, R. Varghese, K. P. Divya and A. AjayaghoshChem. Asian. J. 2008, 3, 1365.
  • Bioinspired Superhydrophobic Coatings of Carbon Nanotubes and Linear pi-Systems Based on the “Bottom-up” Self-Assembly ApproachS. Srinivasan, V. K. Praveen, R. Philip and A. AjayaghoshAngew. Chem. Int. Ed. 2008, 47, 5750.
  • Carbon Nanotube Triggered Self-Assembly of Oligo (p-phenylenevinylene)s to Stable Hybrid p-GelsS. Srinivasan, S.S. Babu, V. K. Praveen and A. AjayaghoshAngew. Chem. Int. Ed. 2008, 47, 5746.
  • Toroidal nanoobjects from supramolecular rosette assemblies of melamine-linked oligo(p-phenyleneethynylene) and cyanuratesS.Yagai, S. Mahesh, Y. Kikkawa, K. Unoike, T. Karatsu, A. Kitamura, A. AjayaghoshAngew. Chem. Int. Ed. 2008, 47, 4691.
  • Detection of zinc ion under aqueous conditions using chirality assisted solid-state fluoresence of bipyridyl based fluorophoreS. Sreejith, K.P. Divya, A. AjayaghoshChem. Commun., 2008, 25, 2903.
  • Controlled self-assembly of squaraines to 1D supramolecular architectures with high molar absorptivityA. Ajayaghosh, P. Chithra, R. Varghese, K. P. DivyaChem. Commun., 2008, 969.
  • Squaraine dyes: a mine of molecular materialsS. Sreejith, P. Carol, P. Chithra, A. AjayaghoshJ. Mater. Chem., 2008, 18, 264.
  • Organogels as scaffolds for excitation energy transfer and light harvestingA. Ajayaghosh, V. K. Praveen, C. VijayakumarChem. Soc. Rev., 2008, 37, 109
  • Molecular wire encapsulated ?-organogels: Efficient supramolecular light harvesting antennae with color tunable emissionA. Ajayaghosh, V. K. Praveen, C. Vijayakumar, S. J. GeorgeAngew. Chem., Int. Ed. 2007, 46, 6260.
  • pi-Organogels of Self-Assembled p-Phenylenevinylenes: Soft Materials with Distinct Size, Shape, and FunctionsA. Ajayaghosh, V. K. PraveenAcc. Chem. Res. 2007, 40,644-656.
  • Synthesis, Photophysical, and Electroluminescent Properties of Arylenevinylenes-co-pyrrolenevinylenes Derived from Divinylaryl Bridged Bispyrroles,A. K. Biswas, A. Ashish, A. K. Tripathi, Y. N. Mohapatra, A. AjayaghoshMacromolecules 2007, 40, 2657.
  • Metallo Supramolecular Assemblies of Bis-squaraines by Allosteric Ca2+ Ion Binding,S. Yagi, Y. Hyodo, M. Hirose, H. Nakazumi, Y. Sakurai, A. AjayaghoshOrg. Lett. 2007, 9, 1999.
  • Self-Assembled Hybrid Oligo(p-phenylenevinylene)–Gold Nanoparticle TapesJ. van Herrikhuyzen, S. J. George, M. R. J. Vos, N. A. J. M. Sommerdijk, A. Ajayaghosh, S. C. J. Meskers, A. P. H. J. SchenningAngew. Chem. Int. Ed. 2007, 46, 1825.
  • Ratiometric and Near-Infrared Molecular Probes for the Detection and Imaging of Zinc Ions.P. Carol, S. Sreejith, A. AjayaghoshChem. -Asian. J. 2007, 2, 338.
  • Quadrupolar p-gels: Sol-gel tunable red-green-blue (RGB) emission in donor-acceptor type oligo(p-phenylenevinylene)s,A. Ajayaghosh, V. K. Praveen, S. Srinivasan, R. VargheseAdv. Mater. 2007, 19, 411.
  • Self-assembly of tripodal squaraines: Cation assisted expression of molecular chirality and change from spherical to helical morphology,A. Ajayaghosh, P. Chithra, R. VargheseAngew. Chem. Int. Ed. 2007, 46, 230.
  • From Vesicles to helical nanotubes: A “sergeant and soldiers” effect in the self-assembly of Oligo(p-phenyleneethynylene)s,A. Ajayaghosh, R. Varghese, S. Mahesh, V. K. PraveenAngew. Chem. Int. Ed. 2006, 45, 7729.
  • Self-assembled p-nanotapes as donor scaffolds for selective and thermally gated fluorescence resonance energy transfer (FRET),V. K. Praveen, S. J. George, R. Varghese, C. Vijayakumar, A. AjayaghoshJ. Am. Chem. Soc. 2006, 128, 7542.
  • Self-location of acceptors as “isolated” or “stacked” energy traps in a supramolecular donor self-assembly: A strategy to wavelength tunable FRET emission,A. Ajayaghosh, C. Vijayakumar, V. K. Praveen, S. S. Babu, R. VargheseJ. Am. Chem. Soc. 2006, 128, 7174.
  • Self-assembled fibrillar networks of oligo(p-phenylenevinylene) based organogelatorsV. K. Praveen, S. J. George, A. AjayaghoshMacromol. Symp. 2006, 241, 1.
  • Evolution of nano-to-microsized spherical assemblies to superstructured organogels of a short oligo(p-phenyleneethynylene),A. Ajayaghosh, R. Varghese, V. K. Praveen, S. MaheshAngew. Chem. Int. Ed. 2006, 45, 3261.
  • Electrical transport measurements on self-assembled organic molecular wires,M. Durkut, M. Mas-Torrent, P. Hadley, P. Jonkheijm, A. P. H. J. Schenning, E. W. Meijer, S. J. Goerge, A. AjayaghoshJ. Chem. Phys. 2006, 124, 154704.
  • Transcription and Amplification of Molecular Chirality to Oppositely Biased Supramolecular p-Helices,A. Ajayaghosh, R. Varghese, S. J. George and C. VijayakumarAngew. Chem. Int. Ed. 2006, 45, 1141.
  • Cholesterol Aided Supramolecular Control on Chromophore Packing: Twisted and Coiled Helices with Distinct Optical, Chiroptical and Morphological Features,A. Ajayaghosh, C. Vijayakumar, R. Varghese and S. J. GeorgeAngew. Chem. Int. Ed. 2006, 45, 456.
  • A Ratiometric Fluorescence probe for Selective Visual Sensing of Zn2+,A. Ajayaghosh, P. Carol and S. SreejithJ. Am. Chem. Soc. 2005, 127, 14962.
  • Hydrogen Bonded Assemblies of Dyes and Chromophores,A. Ajayaghosh, S. J. George and A. P. H. J. SchenningTop. Curr. Chem. 2005, 258, 83.
  • 1H NMR Spectral Evidence for a Specific Host-Guest Complexation Induced Charge Localization in Squaraine Dyes,A. Ajayaghosh and E. ArunkumarOrg. Lett. 2005, 7, 3135.
  • Chemistry of Squaraine Derived Materials: Near-IR Dyes, Low Band Gap Systems and Cation SensorsA. AjayaghoshAcc. Chem. Res. 2005, 38, 449.
  • Self-Assembled Nanotapes of Oligo(p-phenylenevinylenes)s: Sol-Gel Controlled Optical Properties in Fluorescent p-Electronic Gels,S. J. George and A. AjayaghoshChem. Eur. J. 2005, 11, 3217.
  • Selective Calcium Ion Sensing with a Bichromophoric Squaraine FoldamerE. Arunkumar, A. Ajayaghosh and J. DaubJ. Am. Chem. Soc. 2005, 127, 3156.
  • Anion Induced Modulation of Self-Assembly and Optical Properties in Urea End-capped Oligo(p-phenylenevinylene)s,R. Varghese, S. J. George and A. AjayaghoshChem. Commun. 2005, 593.
  • Proton Controlled Intramolecular Photoinduced Electron Transfer (PET) in Podand Linked Squaraine-Aniline Dyads,E. Arunkumar and A. AjayaghoshChem. Commun. 2005, 599.
  • Coiled-Coil Gel Nanostructures of Oligo(p-phenylenevinylene)s: Gelation Induced Helix Transition in a Higher Oreder Supramolecular Self-Assembly of a Rigid p-Conjugated System,S. J. George, A. Ajayaghosh, P. Jonkheijm, A. P. H. J. Schenning and E. W. MeijerAngew. Chem. Int. Ed. 2004, 43, 3422.

  • A Controlled Supramolecular Approach Towards Cation Specific Chemosensors: Alkaline Earth Metal Ion-driven Exciton Signaling in Squaraine Tethered Podands,E. Arunkumar, P. Chithra and A. AjayaghoshJ. Am. Chem. Soc. 2004, 126, 6590.


2003 – 1999[to top]


  • Redox-switchable squaraines with extended conjugation,M. Büeschel, A. Ajayaghosh, E. Arunkumar and J. DaubOrg. Lett. 2003, 5, 2975.
  • Donor-acceptor type low band gap polymers: Polysquaraines and related systems,A. AjayaghoshChem. Soc. Rev. 2003, 32, 181.
  • Instrinsically conducting low band gap polysquaraines via A-B type polycondensation,A. AjayaghoshInt. J. Plastics Tech. 2003, 6, 117.
  • Gelation Assisted Light Harvesting via Selective Energy Transfer from Oligo(p-phenylenevinylene)-Based Self-Assembly to an Organic Dye,A. Ajayaghosh, S. J. George and V. K. PraveenAngew. Chem. Int. Ed. 2003, 42, 332
  • Controlling the Growth of Conjugated Polymers on Electrode Surface: Synthesis, Electropolymerization and Spectroelectrochemistry of Conjugated Bispyrroles,M. Büeschel, A. Ajayaghosh, J. Eldo and J. DaubMacromolecules 2002, 35, 8405.
  • A Highly Specific Ca2+ Sensor. Signaling via Exciton Interaction in a Rigid-Flexible- Rigid Bichromophoric ‘H’-Foldamer,A. Ajayaghosh, E. Arunkumar and J. DaubAngew. Chem. Int. Ed. 2002, 41, 1766.
  • New Low Band Gap Polymers. Control of Optical and Electronic Properties in NearInfrared Absorbing p-Conjugated Polysquaraines,J. Eldo and A. AjayaghoshChem. Mater. 2002, 14, 410.
  • Organo-Based Materials for Photonic Applications.S. Das, A. Ajayaghosh, K. R. Gopidas, D. Ramaiah, and K. George ThomasMetals Materials and Processes 2001, 13, 351.
  • A Novel Approach Towards Low Optical Band Gap Polysquaraines,A. Ajayaghosh and J. EldoOrg. Lett. 2001, 3, 2595.
  • First Phenylenevinylene Based Organogels. Self-Assembled Nanostructures via Cooperative Hydrogen Bonding and p-Stacking,A. Ajayaghosh and S. J. GeorgeJ. Am. Chem. Soc. 2001, 123, 5148.
  • Optoelectronic Molecular Switches Based on Dihydroazulene-Vinylheptafulvene (DHA-VHF),T. Mrozek, J. Daub and A. AjayaghoshMolecular Switches, Feringa, B. L. (Ed.), Wiley, VCH, 2001, pp 63-106.
  • Fluorescent Bispyrroles. New Building Blocks for Novel p-Conjugated Polymers,J. Eldo, E. Arunkumar and A. AjayaghoshTetrahedron Lett. 2000, 41, 6241.
  • Signaling and Expression of Electronic Effects by Dihydroazulene- Vinylheptafulvene Photochromism,J. Daub, T. Mrozek and A. AjayaghoshMol. Cryst. Liq. Cryst. 2000, 344, 41.
  • Minimization of homopolymer Formation and Control of Dispersity in Free Radical Induced Graft Polymerization Using Xanthate Derived Macro-photoinitiators,R. Francis and A. AjayaghoshMacromolecules 2000, 33, 4699.
  • Squaraine Dye Based Molecular Wires Containing Flexible Oxyethylene Chains as Sensors. Enhanced Fluorescence Response on Li+ Recognition,C. R. Chenthamarakshan, J. Eldo and A. AjayaghoshMacromolecules 1999, 32, 5846.
  • A Xanthate Derived Photoinitiator that Recognizes and Controls the Photoinitiated Free Radical Polymerization Pathways of Methyl Methacrylate and Styrene,A. Ajayaghosh and R. Francis,J. Am. Chem. Soc. 1999, 121, 6599.

  • Synthesis and Properties of Alternate Acceptor-Donor Copolymers of Squaric Acid with 1-Dodecyl- and 3-Dodecylpyrroles,C. R. Chenthamarakshan, J. Eldo and A. AjayaghoshMacromolecules 1999, 32, 251.


1998 – 1994[to top]


  • Synthesis and Properties of Water Soluble Squaraine Oligomers Containing Pendant Propane Sulfonate Moieties,C. R. Chenthamarakshan and A. AjayaghoshChem. Mater. 1998, 10, 1657.
  • Narrow Polydispersed Reactive Polymers by a Photoinitiated Free Radical Polymerization Approach. Controlled Polymerization of Methyl MethacrylateA. Ajayaghosh and R. Francis,Macromolecules 1998, 31, 1436.
  • Enhanced Sensitivity and Selectivity in Metal Ion Recognition Property of an Oligosquaraine Dye Based Fluorescent Sensor,C. R. Chenthamarakshan and A. AjayaghoshTetrahedron Lett. 1998, 39, 1795.
  • A Zwitterionic Dye-Based Conducting Polymers. Synthesis and Optical Properties of Pyrrole-Derived Polysquaraines,A. Ajayaghosh, C. R. Chenthamarakshan, S. Das and M. V: George,Chem. Mater. 1997, 9, 644.
  • Photo-Triggered Selective C-Terminal N-Methylamidative Cleavage of Polyethyleneglycol-Bound Peptides,A. Ajayaghosh and V. N. R. PillaiTetrahedron Lett. 1996, 37, 6421.
  • Thermal and Acid-catalysed Reaction of Bifunctional Vinyl Ether Urethane in Nonionic and Ionic Polymer Matrices,Z. Chen, A. Ajayaghosh, T. Yamaoka and M. SukigaraPolym. Adv. Technol. 1995, 6, 733.
  • Photophysical and Photoelectrochemical Behavior of Poly(styrene-co-(acrylamido)-6-aminoacridine),S. Das, C. S. Rajesh, C. H. Suresh, K. G. Thomas, A. Ajayaghosh, C. Nasr, P. V. Kamat and M. V. GeorgeMacromolecules 1995, 28, 4249.
  • Macrophotoinitiator Containing Pendant Xanthate Chromophore. Photopolymerization of Methyl Methacrylate and Evaluation of Kinetic Parameters,A. AjayaghoshPolymer 1995, 36, 2049.
  • Synthesis, Characterization and Copolymerization Behaviour of S-Methacryloyl O-Ethyl Xanthate,R. Francis and A. AjayaghoshPolymer 1995, 36, 1091.
  • Phototransformation of Di-O-Ethyl S,S-Terepthaloyl Dixanthate and Terepthaloic Bis(piperidinedithiocarbamic anhydride),M. Muneer, A. Ajayaghosh,S. Das and M. V. George,J. Photochem. Photobiol. A: Chem. 1995, 86, 155.
  • Solid-Phase Synthesis and C-Terminal Amidation of Peptides Using a Photolytically Cleavable o-Nitrobenzhydrylamino-polystyrene Support,A. Ajayaghosh and V. N. R. Pillai,Tetrahedron Lett. 1995, 36, 777.

  • Photoresists Based on a Novel Photorearrangement of o-Nitrobenzylic PolymersA. Ajayaghosh, M. V. George and T. YamaokaJ. Mater. Chem. 1994, 4, 1769.
  • Novel Phototransformation of o-Nitrobenzylic Polymers to Azopolymers,A. Ajayaghosh, S. C. George and M. V. GeorgeJ. Chem. Soc. Chem. Commun. 1994, 423.

1993 – 1987[to top]


  • Synthesis and Photocrosslinking Studies of Some Copolymers of S-AcryloylO- Ethyl Xanthate,A. Ajayaghosh, S. Das, P. V. Kamat, P. K. Das and M. V. GeorgePolymer, 1993, 34, 3605.
  • Photo-induced Graft Copolymerization of Methyl Methacrylate onto CelluloseContaining Benzoyl Xanthate Chromophore,G. John, C. K. S. Pillai, and A. AjayaghoshPolym. Bull. 1993, 30, 415.
  • A New Photodegradable Polyamide Containing o-Nitrobenzyl Chromophore. SteadyState and Laser Flash Photolysis Studies,T. Mathew, A. Ajayaghosh, S. Das, P. V. Kamat and M. V. GeorgeJ. Photochem. Photobiol. A. Chem. 1993, 71, 181.
  • S-Benzoyl O-Ethyl Xanthate as a New Photoinitiator: Photopolymerization and Laser Flash Photolysis StudiesA. Ajayaghosh, S. Das and M. V. GeorgeJ. Polym. Sci. Polym. Chem. 1993, 31, 653.
  • Polymer-Bound S-Benzoyl O-Ethyl Xanthate. A New Heterogeneous PhotoinitiatorA. Ajayaghosh, R. Francis and S. DasEur. Polym. J. 1993, 29, 63.
  • Photophysics and Photochemistry of Squaraine Dyes: 3. Excited State Properties and Poly(4-vinylpyridine)-induced Fluorescence Enhancement of Bis(2,4,6-trihydroxyphenyl)squaraineS. Das, P. V. Kamat, B. De la Barre, K. George Thomas, A. Ajayaghosh and M. V. GeorgeJ. Phys. Chem. 1992, 96, 10327.
  • Photografting of Acrylic Monomers on Polystyrene SupportA. Ajayaghosh, and S. DasJ. Appl. Polym. Sci. 1992, 45, 1617.
  • Laser Flash Photolysis Studies of Aroyl Xanthates and Carboxylic Dithiocarbamic AnhydridesD. Weir, A. Ajayaghosh, M. Muneer and M. V. GeorgeJ. Photochem. Photobiol. A. Chem. 1990, 52, 425.
  • Solid-Phase Synthesis of N-Methyl and N-Ethylamides of Peptides Using photolytically Detachable 3-Nitro-4-N-alkylaminomethylbenzamidomethyl Polystyrene ResinA. Ajayaghosh and V. N. R. PillaiJ. Org. Chem. 1990, 55, 2826.
  • Polymer-Supported Synthesis of Protected Peptide Segments on a Photosensitive o-Nitro(alpha-methyl)bromobenzyl Resin,A. Ajayaghosh and V. N. R. PillaiTetrahedron 1988, 44, 6661.
  • 2′-Nitrobenzhydryl Polystrene Resin. A New Photolabile Polymeric Support for Carboxyl Protection in Amino AcidsA. Ajayaghosh and V. N. R. PillaiNat. Acad. Sci. Letters, India 1988, 11, 149.
  • Polymer-Supported Solid-Phase Synthesis of C-Terminal Peptide N-Methylamides Using a Modified Photoremovable 3-Nitro-4-N- methylaminomethylpolystyrene supportA. Ajayaghosh and V. N. R. PillaiInd. J. Chem. 1988, 27B, 1004.
  • Solid-Phase Synthesis of C-Terminal Peptide Amides Using a Photoremovablealpha-Methylphenacylamido Anchoring LinkageA. Ajayaghosh and V. N. R. PillaiProc. Ind. Acad. Sci. (Chem.Sci.) 1988, 100, 389.
  • 2′-Nitrobenzhydryl Polystyrene Resin. A New Photosensitive Polymeric Support forPeptide SynthesisA. Ajayaghosh and V. N. R. PillaiJ. Org. Chem. 1987, 52, 5714.
  • Polymer-Bound Mixed Carboxylic Dithiocarbamic Anhydrides. A New Class ofSelective and Recyclable Solid-phase Acylating ReagentsV. K. Haridasan, A. Ajayaghosh and V. N. R. PillaiJ. Org.Chem. 1987, 52, 2662.