Nanomaterials Field
Functional Chromophores Group
We use organic synthetic methods to prepare chromophore (colored) compounds for different applications such as photodynamic or sensing.
Group Leader: Jonathan Hill
Synthesis of functional chromophores based on macroheterocycles
Current Topics
Our research is currently focused on different classes of molecules whose colors impart particular properties. For example, molecules that absorb light in the near-infrared (NIR) region stimulating formation of triplet excited states can be used to generate reactive singlet oxygen, which can be directed for anticancer or antimicrobial applications. Molecular design principles can also be applied to make compounds for catalysis (e.g., photoredox catalysis), sensing in conjunction with nanomechanical sensor, or bioimaging. These materials are also designed based on the expected conditions at their end-use.
Fig. 1. a, Polarized fluorescence emission in a self-assembled sexiphenyl. b, Acetone by self-assembled porphyrin.
Outline of Research
We have developed new classes of materials based on different molecular structures and supramolecular chromophore nanoarchitectures. These materials provide access to useful properties not otherwise accessible from other materials. These include polarized fluorescence emission from 2D molecular assemblies, selective analyte sensing by spontaneous assembly of sensor elements, and quantized emission for optical information processing.
References
- P. Mondal, J. P. Hill, G. Manna, S. De Dalui, E. A. Neal, G. J. Richards, K. Ariga, Y. Yamauchi, L. K. Shrestha, S. Acharya, Adv. Opt. Mater. 12, 2400177 (2024) DOI: 10.1002/adom.202400177
- M. K. Chahal, S. Maji, A. Liyanage, Y. Matsushita, P. Tozman, D. T. Payne, W. Jevasuwan, N. Fukata, P. A. Karr, J. Labuta, L. K. Shrestha, S. Ishihara, K. Ariga, F. D'Souza, G. Yoshikawa, Y. Yamauchi, J. P. Hill, Mater. Chem. Front. 7, 325–332 (2023) DOI: 10.1039/D2QM01039A
- P. Chettri, A. Singhania, S. Kalita, H. Nakao, B. Bora, P. Saikia, S. Dutta, A. Bandyopadhyay, S. Ghosh, Adv. Opt. Mater. 12, 2400650 (2024) DOI: 10.1002/adom.202400650
Group members
Jonathan Hill・Group Leader
Anirban Bandyopadhyay・Principal Researcher
Joel Hensie・Principal Researcher
Jan Labuta・Senior Researcher
Activities
- Mar 5, 2024
- Apr 23, 2024
Links