Purnadas Ghosh

ORCID: 0000-0002-2827-3313
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About
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Research Areas
  • Conducting polymers and applications
  • Supramolecular Self-Assembly in Materials
  • Luminescence and Fluorescent Materials
  • Advanced Nanomaterials in Catalysis
  • Supercapacitor Materials and Fabrication
  • Nanocluster Synthesis and Applications
  • Electrocatalysts for Energy Conversion
  • Advanced Photocatalysis Techniques
  • Analytical Chemistry and Sensors
  • Molecular Junctions and Nanostructures
  • Ferrocene Chemistry and Applications
  • Fuel Cells and Related Materials
  • Carbon and Quantum Dots Applications
  • Molecular Sensors and Ion Detection
  • Nanomaterials for catalytic reactions
  • Electrochemical sensors and biosensors
  • Nanoplatforms for cancer theranostics
  • Polydiacetylene-based materials and applications
  • Dendrimers and Hyperbranched Polymers
  • Photochromic and Fluorescence Chemistry
  • Neuropeptides and Animal Physiology

Indian Association for the Cultivation of Science
2023-2024

Recently, significant attention has drawn in the field of photo-supercapacitors by coupling a photovoltaic cell within supercapacitor device providing generation and storage power single device. Here,...

10.1039/d4ta09051a article EN Journal of Materials Chemistry A 2025-01-01

Peptide amphiphiles (PAs) are elusive candidates to construct soft materials possessing various functionalities, including potent antimicrobial activity. It is imperative look for a broad-spectrum antibiotic against which the genesis of drug resistance difficult. Herein, histidine-based PA found form transparent metallohydrogel when AgNO3 added hot solution in 2:1 (PA/AgNO3) molar ratio. Exposure 365 nm UV lamp results blue light-emitting silver nanocluster (NC) formation inside hydrogel...

10.1021/acsanm.2c04144 article EN ACS Applied Nano Materials 2023-02-07

A hydrothermal process has been used to prepare highly fluorescent green-emitting crystalline carbon dots (CDs) at 200 °C using Bismarck brown dye. The HR-TEM image shows the clear lattice fringes with d-spacing values of 0.23 and 0.33 nm corresponding (100) (002) planes, respectively, indicating nature dots. These as-synthesized have successfully make two different nanocomposite systems, consisting silver gold nanoparticles Here act as a reducing agent in presence UV light/blue LED light...

10.1021/acsanm.3c03380 article EN ACS Applied Nano Materials 2023-09-22

Peptide linked perylenebisimide and ferrocene dicarboxylic acid conjugates display wonderful tunable optoelectronic properties.

10.1039/d3nj05809c article EN New Journal of Chemistry 2024-01-01

We report the synthesis of a trihybrid system consisting perylene bisimide appended peptide nanofibers, silver nanoparticles and graphene oxide nano-sheets. The is utilized as photocatalyst for reduction carcinogenic Cr( vi ) to non-toxic iii ).

10.1039/d3nj05662g article EN New Journal of Chemistry 2024-01-01

Organic soft material-based mixed-ion electronic conductors (MIECs) have nowadays emerged as an important class of material due to their immense use in many fields. In this study, we report a peptide-appended naphthalene diimide-based (NDIP) thermoresponsive, mechanosensitive, and photoresponsive hydrogel the phosphate buffer medium at physiological pH (7.46), which also shows MIECs properties assembled state. The UV–visible study has revealed J type aggregation NDIP molecule gel...

10.1021/acsapm.3c02456 article EN ACS Applied Polymer Materials 2023-12-19

An amino acid-conjugated naphthalene diimide (NDI)-based highly red fluorescent radical anion has been found in a water medium under the photoradiated condition. This molecule failed to form monomeric state; however, J aggregation aqueous ensured formation of ambient condition after irradiation both sunlight and UV light exposure. Electron paramagnetic resonance (EPR) studies clearly suggest anions. Herein, stability is only few minutes as small amount shaking enough quench solution state....

10.1021/acs.langmuir.3c03947 article EN Langmuir 2024-04-23

The investigation of organic mixed ion electronic conductivity and photoswitching behavior the chromophoric moiety is quite challenging attractive to scientific world. Herein, we have vividly demonstrated effect peptide-appended naphthalimide-conjugated boronic acid (PNP) upon exposure tetrabutyl ammonium fluoride (TBAF) formation radical anions in system. TBAF reduces PNP generate anions. generated play pivotal role enhancement transport properties PNP. At nanomolar concentrations (2 nM)...

10.1021/acsaelm.4c01783 article EN ACS Applied Electronic Materials 2024-12-03
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