Single-Molecule Fluorescence Imaging, Dynamics
and Spectroscopy Group
Department of Chemistry, IIT Bombay
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    2022

    1. “Probing nanoscale surface polarity of α-Synuclein amyloid fibrils using dual-color sensitized emission imaging”,Mahato, J; Bose, A; Mehra, S; Kumar, R; Maji, S.K; Chowdhury, A; (2022). [Submitted]

    2. “Deciphering effective modes of communication between spatially-segregated photo-carriers leading to emission intermittency of entire micro-crystals",Pathoor, N; Chowdhury, A; ACS Photonics (2022).[PDF]

    3. “Edge vs. Interior Mn(II) doping in 2D Layered Butyl Ammonium Lead Bromide Perovskite Single Crystal” Dutta, T; Kashid, S; Hooda, R; Sheikh, T; Chowdhury, A; Nag, A; The Journal of Physical Chemistry C (2022), 126, 21109−21116.[PDF]

    4. “Unraveling the dual emission in single quantum-dots by single particle spectroscopy” Layek, A; Arora, V; Sapra, S; Chowdhury, A; Journal of Physics Conference Series (2022), 2349, 012026.[PDF]

    5. "Insights on anisotropic emission of (diffused) photo-carriers in hybrid perovskite microrods", Behera, T.; Chowdhury, A; The Journal of Physical Chemistry C (2022), 126, 15819-15828.[PDF]

    6. "Deciphering modes of long-range energy transfer in perovskite crystals using confocal excitation and wide-field fluorescence spectral imaging", Behera, T.; Pathoor, N; Mukherjee, R.; Chowdhury, A; Methods and Applications in Fluorescence (2022).[PDF]

    7. "Investigating spatiotemporal correlation of multi-state photoluminescence intermittency in organo-Lead bromide microcrystal films", Pathoor, N;Mukherjee, A.; Chowdhury, A; The Journal of Physical Chemistry C (2022),126, 13, 5991–5999.[PDF]

    8. "Spectrally-resolved FRET microscopy of α-synuclein phase-separated liquid droplets", Mahato, J; Ray, S; Maji, S.K; Chowdhury, A; Methods in Molecular Biology (2022), 2551, 425-447.[PDF]

    2021

    1. "Investigation of structural heterogeneity in individual amyloid fibrils using polarization-resolved microscopy", Mahato, J; Ray, K.K; Das, S; Kadu, P; Maji, S.K.; Chowdhury, A; The Journal of Physical Chemistry B (2021), 125, 49, 13406–13414[PDF]

    2. "Spatiotemporal solidification of α-synuclein inside the liquid droplets",Ray, S; Chatterjee, D; Mukherjee, S; Patel, K; Mahato, J; Kadam, S; Krishnan, R; Sawner, A.S; Poudyal, M; K Krishnamoorthy, G; Chowdhury, A; Padinhateeri, R; Maji, S.K; bioRxiv (2021)[PDF]

    3. "Influence of atmospheric constituents on spectral instability and defect-mediated carrier recombination in hybrid perovskite nanoplatelets", Mukherjee, A; Roy, M; Pathoor, N; Aslam, M; Chowdhury, A; The Journal of Physical Chemistry C (2021),125, 31, 17133–17143[PDF]

    4. "Tunable multiplexed whole-Cell biosensors as environmental diagnostics for ppb-Level detection of aromatic pollutants", Roy, R; Ray, S.; Chowdhury, A; Anand, R; ACS Sensors (2021). 6, 1933-1939[PDF]

    5. "Polarization-resolved single-molecule tracking reveals strange dynamics of individual fluorescent tracers through a plasticized (rubbery) polymer network", Mahato, J; Bhattacharya, S; Sharma, D.K; Chowdhury, A; Physical Chemistry Chemical Physics (2021), 23, 10835–10840[PDF]

    6. "Self-Assembly of nicotinic acid-conjugated selenopeptides into mesotubes", Gokula, R.P; Mahato, J; Tripathi, A; Singh, H.B; Chowdhury, A; ACS Applied Bio Materials (2021), 4, 1912–1919[PDF]

    2020

    1. "α-Synuclein aggregation nucleates through liquid-liquid phase separation", Ray, S; Singh, N; Pandey, S; Kumar, R; Gadhe, L; Datta, D; Patel, K; Mahato, J; Navalkar, A; Panigrahi, R; Chatterjee, D; Maiti, S; Bhatia, S; Mehra, S; Singh, A; Gerez, J; Chowdhury, A; Kumar, A; Padinhateeri, R; Riek, R; Krishnamoorthy, G; Maji, S.K; Nature Chemistry (2020), 12, 705–716[PDF]

    2. "Cooperative supramolecular block copolymerization for the synthesis of functional axial organic heterostructures", Sarkar, A; Behera, T; Samal, R; Capelli, R; Empereur-mot, C; Mahato, J; Agasti, S.S; Pavan, G.M; Chowdhury, A; George, S.J; Journal of the American Chemical Society (2020), 142, 11528–11539[PDF]

    3. "Molecular intercalation and electronic two dimensionality in layered hybrid perovskites", Sheikh, T; Nawale, V; Pathoor, N; Phadnis, C; Chowdhury, A; Nag, A; Angewandte Chemie, International Edition (2020), 59, 11653-11659 [selected very important paper][PDF]

    4. "Spatially correlated photoluminescence blinking and flickering of hybrid-halide perovskite micro-rods", Behera, T; Pathoor, N; Phadnis, C; Buragohain, S; Chowdhury, A; Journal of Luminescence (2020), 223, 117202-117211 [special issue on perovskite luminescence][PDF]

    5. "Non-Gaussian subdiffusion of single-molecule tracers in a hydrated polymer network", Singh, R.K; Mahato, J; Chowdhury, A; Sain, A; Nandi, A; The Journal of Chemical Physics (2020), 152, 024903[PDF]

    2019

    1. "Insights on heterogeneity in blinking mechanisms and non-ergodicity using sub-ensemble statistical analysis of single quantum-dots", Mukherjee, A; Ray, K.K; Phadnis, C; Layek, A; Chowdhury, A; The Journal of Chemical Physics (2019), 151, 084701-11[PDF]

    2. "Critical role of processing on the mechanical properties of cross-Linked highly loaded nanocomposites", Suresh, K; Chowdhury, A; Kumar, S.K; Kumaraswamy, G; Macromolecules (2019), 52, 5955-5962[PDF]

    3. "Reversible dimensionality tuning of hybrid perovskites with humidity: visualization and application to stable solar cells", Sharma, S.K; Phadnis, C; Das, T.K; Kumar, A; Kavaipatti, B; Chowdhury, A; Yella, A; Chemistry of Materials (2019), 31, 3111-3117[PDF]

    2018

    1. "Self-assembly of penta-selenopeptides into amyloid fibrils", Gokula, R.P; Mahato, J; Singh, H.B; Chowdhury, A; Chemical Communications (2018), 54, 11697-11700[PDF]

    2. "Fluorescence blinking beyond nano‐confinement: Spatially synchronous intermittency of entire perovskite micro‐crystals", Pathoor, N; Halder, A; Mukherjee, A; Mahato, J; Sarkar, S.K; Chowdhury, A; Angewandte Chemie International Edition (2018), 57,11603 –11607 [PDF]

    3. "Photoluminescence flickering of micron-sized crystals of methylammonium lead bromide: effect of ambience and light exposure", Halder, A; Pathoor, N; Chowdhury, A; Sarkar, S.K; The Journal of Physical Chemistry C (2018), 122, 15133−15139[PDF]

    4. "Single particle tracking to probe the local environment in ice-templated crosslinked colloidal assemblies", Suresh, K; Sharma, D.K; Chulliyil, R; Sarode, K.D; Ravi Kumar, V; Chowdhury, A; Kumaraswamy, G; Langmuir (2018), 34, 4603-4616[PDF]

    2017

    1. "An approach to estimate spatial distribution of analyte within cells using spectrally-resolved fluorescence microscopy", Sharma, D.K; Irfanullah, M; Basu, S.K; Madhu, S; De, S; Ravikanth, M; Jadhav, S; Chowdhury, A; Methods and Applications in Fluorescence (2017), 5, 014003-13 [Special issue on optics within life sciences (OWLS 2016)] [PDF]

    2. "Heterogeneity in optical properties of near white-light emissive europium complex species revealed by spectroscopy of single nanoaggregates", Irfanullah, M; Sharma, D.K; Chulliyil, R; Layek, A; De, S; Chowdhury, A; Chemical Physics Letters (2017), 667, 247-253 [PDF]

    2016

    1. "Heterogeneity during plasticization of poly(vinylpyrrolidone): Insights from reorientational mobility of single fluorescent probes", Bhattacharya, S; Sharma, D.K; De, S; Mahato, J; Chowdhury, A; The Journal of Physical Chemistry B (2016), 120, 1204-1215 [PDF]

    2. "Glycopolypeptide grafted bioactive polyionic complex vesicles (PICsomes) and their specific polyvalent interactions", Pandey, B; Mahato, J; Cotta, K.B; Das, S; Sharma, D.K; Gupta, S.S; Chowdhury, A;ACS Omega (2016), 1(4), 600-612 [PDF]

    3. "Palladium nanoparticles supported on fibrous silica (KCC-1-PEI/Pd): a sustainable nanocatalyst for decarbonylation reactions", Kundu, P.K; Dhiman, M; Modak, A; Chowdhury, A; Polshettiwar,V; Maiti, D; ChemPlusChem (2016), 81, 1142-1146 [PDF]

    4. "Sensitized luminescence from water-soluble LaF3:Eu nanocrystals via partially-caped 1,10-phenanthroline: time-gated emission and multiple lifetimes", Irfanullah, M; Bhardwaj, N; Chowdhury, A; Dalton Transactions (2016), 45, 12483-12495 [PDF]

    5. "Synthesis of rare-earth doped ZnO nanorods and their defect-dopant correlated enhanced visible-orange luminescence", Layek, A; Banerjee, S; Manna, B; Chowdhury, A; RSC Advances (2016), 6, 35892-35900 [PDF]

    6. "Manifestations of varying grading level in CdSe/ZnSe core-shell nanocrystals", Sonawane, K.G; Agarwal , K.S; Phadnis, C; Sharma, D.K; Layek, A; Chowdhury, A; Mahamuni, S; The Journal of Physical Chemistry C (2016), 120, 5257–5264 [PDF]

    2015

    1. "Colloidal CsPbBr3 perovskite nanocrystals: Luminescence beyond traditional quantum dots", Swarnkar, A; Chulliyil, R; Ravi, V.K; Irfanullah, M; Chowdhury, A; Nag, A; Angewandte Chemie International Edition (2015), 54 (51), 15424-15428. [selected hot paper] [PDF]

    2. "Pseudohalide (SCN-)-doped MAPbI3 perovskites: a few surprises", Halder, A; Chulliyil, R; Subbiah, A.S; Khan, T; Chattoraj, S; Chowdhury, A; Sarkar, S.K; The Journal of Physical Chemistry Letters (2015), 6(17), 3483-3489 [PDF]

    3. "Self healing hydrogels composed of amyloid nano fibrils for cell culture and stem cell differentiation", Jacob, R.S; Ghosh, D; Singh, P.K; Basu, S.K; Jha, N.N; Das, S; Sukul, P.K; Patil, S; Sathaye, S; Kumar, A; Chowdhury, A; Malik, S; Sen, S; Maji, S; Biomaterials (2015), 54, 97-105 [PDF]

    4. "Bioactive polymersomes self-assembled from amphiphilic PPO-Glycopolypeptides: Synthesis, characterization and dual-dye encapsulation", Das, S; Sharma, D.K; Chakrabarty, S; Chowdhury, A; Gupta, S.S; Langmuir (2015), 31, 3402-3412 [PDF]

    5. "Fluorescent probe for detection of cyanide ion in aqueous medium: cellular uptake and assay for β-Glucosidase and hydroxynitrile lyase", Agarwalla, H; Gangopadhyay, M; Sharma, D.K; Basu, S.K; Jadhav, S; Chowdhury, A; Das, A; J. Mater. Chem. B (2015), 3, 9148-9156 [PDF]

    6. "Europium-doped LaF3 nanocrystals with organic 9-oxidophenalenone capping ligands that display visible light excitable steady-state blue and time-delayed red emission", Irfanullah, M; Sharma, D.K; Chulliyil, R; Chowdhury, A; Dalton Transactions (2015), 44, 3082-3091 [PDF]

    2014

    1. "Probing differential hydration of poly(vinylpyrrolidone) thin films using tracer mobility: an insight from fluorescence correlation spectroscopy", Bhattacharya, S; Dey, A; Chowdhury, A; The Journal of Physical Chemistry B (2014), 118, 5240-5249 [PDF]

    2. "Spectrally resolved optical microscopy using a transmission grating spectrograph: Importance of spatial selection", Sharma, D.K; Chowdhury, A; Analyst (2014), 139, 473-481 [PDF]

    2013

    1. "Sensing Hg(II) in vitro and in vivo using a benzimidazole substituted BODIPY", Madhu, S; Sharma, D.K; Basu, S.K; Jadhav, S; Chowdhury, A; Ravikanth, M; Inorganic Chemistry (2013), 52, 11136-11145 [PDF]

    2. "Plasticization of poly(vinylpyrrolidone) thin films under ambient humidity: Insight from single-molecule tracer diffusion dynamics", Bhattacharya, S; Sharma, D.K; Saurabh, S; De, S; Sain, A; Nandi, A; Chowdhury, A; The Journal of Physical Chemistry B (2013), 117, 7771-7782 [PDF]

    3. "Ultranarrow and widely tunable Mn2+-induced photoluminescence from single Mn-doped nanocrystals of ZnS-CdS alloys", Hazarika, A; Layek, A; De, S; Nag, A; Debnath, S; Mahadevan, P; Chowdhury, A; Sarma, D.D; Physical Review Letters (2013), 110, 26740 [PDF]

    2012

    1. "Quantum-confined stark effect in localized luminescent centers within InGaN/GaN quantum-well based light emitting diodes", De, S; Layek, A; Bhattacharya, S; Das, D.K; Kadir, A; Bhattacharya, A; Dhar, S; Chowdhury, A; Applied Physics Letters (2012), 101, 121919 [PDF]

    2. "Carrier recombination dynamics through defect states of ZnO nanocrystals: From nanoparticles to nanorods", Layek, A; Manna, B; Chowdhury, A; Chemical Physics Letters (2012), 539-540, 33-138 [PDF]

    3. "A generalized three-stage mechanism of ZnO nanoparticle formation in homogeneous liquid medium", Layek, A; Mishra, G; Sharma, A; Spasova, M; Dhar, S; Chowdhury, A; Bandopadhyaya, R; The Journal of Physical Chemistry C (2012), 116, 24757-24769 [PDF]

    2011

    1. "Optoelectronic behaviors and carrier dynamics of individual localized luminescent centers in InGaN quantum-well light emitting diodes", De, S; Das, D; Layek, A; Raja, A; Singh, M.K; Bhattacharyya, A; Dhar, S; Chowdhury, A; Applied Physics Letters (2011), 99, 251911 [selected for Virtual Journal of Nanoscale Science & Technology, January 9, 2012 issue Vjnano] [PDF]

    2. "Two Distinct Origins of Highly Localized Luminescent Centers within InGaN/GaN Quantum-Well Light-Emitting Diodes", De, S; Layek, A; Raja, A; Kadir, A; Gokhale, M; Bhattacharya, A; Dhar, S; Chowdhury, A; Advanced Functional Materials (2011), 21, 3828-3835 [Selected as front-piece highlight article for the issue (inner cover)] [PDF]

    3. "ZnO nanocrystals in strong confinement regimes: Insight on relaxation dynamics of defect states responsible for the visible luminescence", Layek, A; Chowdhury, A; International Journal of Nanoscience (2011), 10, 681-685 [PDF]

    4. "Polarity selective etching: A self-assisted route for fabricating high density of c-axis oriented tapered GaN nanopillars", Ghosh, A; Bhasker, H.P; Mukherjee, A; Kundu, T; Singh, B.P; Dhar, S; De, S; Chowdhury, A; Journal of Applied Physics (2011), 110, 033528 [PDF]

    5. "Spectrally Resolved Photoluminescence Imaging of ZnO Nanocrystals at Single-Particle Levels", Layek, A; De, S; Thorat, R; Chowdhury, A; The Journal of Physical Chemistry Letters (2011), 2, 1241-1247 [PDF]

    2010 and before

    1. J. Gorman, A. Chowdhury, J. A. Surtees, J. Shimada, D. R. Reichman, E. Alani, E. C. Greene, Mol. Cell 2007, 28(3),359. [PDF]

    2. P. Yan, A. Chowdhury, M. W. Holman, D. M. Adams, J. Phys. Chem. B 2005, 109(2), 724-730.[PDF]

    3. P. Yan, M.W. Holman, P. Robustelli, A.Chowdhury, F.I. Ishak,; D.M. Adams, J. Phys. Chem. B 2005, 109(1), 130-137.[PDF]

    4. A. Chowdhury, L. Yu, I. Raheem, L. Peteanu, L. A. Liu, D. J. Yaron, J. Phys. Chem. A 2003, 107(18),3351. [PDF]

    5. A. Chowdhury, L.A.Peteanu, P.L. Holland, W.B. Tolman,J. Phys. Chem. B 2002, 106 (11), 3007-3012. [PDF]

    6. A. Chowdhury, L.A. Peteanu, M.A. Webb, G.R. Loppnow, J. Phys. Chem. B 2002 , 105 (2), 527-534[PDF]

    7. A. Chowdhury, S. Wachsmann-Hogiu, P. R. Bangal, I. Raheem, L. A. Peteanu, J. Phy. Chem. B 2001, 105(48), 2196. [PDF]

    8. S.A. Locknar, A. Chowdhury, L.A. Peteanu, J. Phys. Chem. B 2000, 104 (24), 5816-5824[PDF]

    9. A. Chowdhury, S. A. Locknar, L. L. Premvardhan, L. A. Peteanu, J. Phy. Chem. A 1999, 103(48),9614-9625. [PDF]

    10. S. Maheshwari, A. Chowdhury, N. Sathyamurthy, H. Mishra, H.B. Tripathi, M. Panda, J. ChandrasekharJ. Phys. Chem. A, 1999, 103 (31), 6257-6262[PDF]

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