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Barooah N, Karmakar P, Sharanya MK, Mishra M, Bhasikuttan AC, Mohanty J. Spectroscopic features of a perylenediimide probe for sensing amyloid fibrils: in vivo imaging of Aβ-aggregates in a Drosophila model organism. J Mater Chem B 2023; 11:9545-9554. [PMID: 37753638 DOI: 10.1039/d3tb01233f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
Customised perylenediimide (PDI) chromophores find diverse applications not only as chemosensors, inorganic-organic semiconductors, photovoltaics, photocatalysts, etc., but also in protein surface engineering, bio-sensors and drug delivery systems. This study focuses on the interaction of a custom synthesized phenylalanine derivatized perylenediimide (L-Phe-PDI) dye with a model protein, insulin, and its structurally distinct fibrils to develop fluorescence sensors for fibrillar aggregates and in vivo imaging applications. Detailed photophysical studies revealed that L-Phe-PDI gets aggregated in the presence of insulin and causes emission quenching at pH 7.4, which in the absence of insulin occurs only at pH ∼2. During in vitro incubation of insulin to its fibrils, the fluorescence intensity of the L-Phe-PDI probe is enhanced to ∼150 fold in a two-stage manner, manifesting the pathways of structural transformation to β-sheet rich mature fibrils. The in vivo sensing has further been validated in living models of the Aβ-mutant Drosophila fly, which is known to develop progressive neurodegeneration comparable to that of human brains with Alzheimer's disease (AD). Bioimaging of the L-Phe-PDI treated Aβ-mutant Drosophila documented the blood-brain/blood-retina-barrier cross-over ability of L-Phe-PDI with no toxic effects. Comparison of the fibrillar images from the brain and eye region with the reference thioflavin T (ThT) probe established the uptake of L-Phe-PDI by the aggregate/fibrillar moieties. The samples from L-Phe-PDI-treated flies apparently displayed reduced fibrillar spots, a possible case of L-Phe-PDI-induced disintegration of fibrillar aggregates at large, an observation substantiated by the improved phenotype activities as compared to the untreated flies. The findings reported both in vitro and in vivo with the L-Phe-PDI material for the first time open up avenues to explore the therapeutic potential of custom-designed PDI derivatives for amyloid fibril sensors and bioimaging.
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Affiliation(s)
- Nilotpal Barooah
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Puja Karmakar
- Department of Life Science, National Institute of Technology Rourkela, Odisha 769008, India.
| | - M K Sharanya
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
| | - Monalisa Mishra
- Department of Life Science, National Institute of Technology Rourkela, Odisha 769008, India.
| | - Achikanath C Bhasikuttan
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Jyotirmayee Mohanty
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
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Gayathry TC, Gaur M, Mishra L, Mishra M, Barooah N, Bhasikuttan AC, Mohanty J. Supramolecular assembly of coumarin 7 with sulfobutylether-β-cyclodextrin for biomolecular applications. Front Chem 2023; 11:1245518. [PMID: 37731459 PMCID: PMC10508339 DOI: 10.3389/fchem.2023.1245518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 08/21/2023] [Indexed: 09/22/2023] Open
Abstract
Coumarins, in general, exhibit a wide range of photophysical characteristics and are highly sensitive to their microenvironment, and, therefore, their fluorescence characteristics have attracted immense attention as sensors in chemical and biological systems. In the present study, the supramolecular interaction of a bichromophoric coumarin dye, namely, Coumarin 7 (C7) with sulfobutylether-β-cyclodextrin (SBE7βCD) macrocyclic host at different pH conditions has been investigated by using optical spectroscopic techniques such as absorption, steady-state and time-resolved emissions, and circular dichroism measurements and compared with that of βCD. Considerable enhancement in the fluorescence intensity and lifetime of C7 on complexation with SBE7βCD proposes that non-radiative processes like TICT behavior are strictly hindered due to the confinement in the host cavity experienced by the C7 dye. The increase in the rotational correlation time evaluated from the fluorescence anisotropy decay kinetics further confirms the formation of tightly bound inclusion complexes. The binding constant values reveal that the monocationic form of dye at pH 3 shows ∼3 times stronger interaction with SBE7βCD than the neutral form of dye at pH 7 due to strong electrostatic cation-anion interaction. SBE7βCD:C7 exhibits an improved photostability and an upward pK a shift of 0.4 unit compared to the contrasting downward pK a shift of 0.5 with the βCD. The enhanced fluorescence yield and increased photostability have been exploited for bioimaging applications, and better images were captured by staining the Drosophila fly gut with the SBE7βCD:C7 complex. The enhancement in the binding interaction and the emission intensity were found to be responsive to external stimuli such as small competitive binders or metal ions and nearly quantitative dissociation of the complex was demonstrated to release the dye and would find stimuli-responsive applications.
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Affiliation(s)
- T. C. Gayathry
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Monika Gaur
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, India
- Homi Bhabha National Institute, Training School Complex, Mumbai, India
| | - Lopamudra Mishra
- Department of Life Science, National Institute of Technology Rourkela, Rourkela, India
| | - Monalisa Mishra
- Department of Life Science, National Institute of Technology Rourkela, Rourkela, India
| | - Nilotpal Barooah
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, India
- Homi Bhabha National Institute, Training School Complex, Mumbai, India
| | - Achikanath C. Bhasikuttan
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, India
- Homi Bhabha National Institute, Training School Complex, Mumbai, India
| | - Jyotirmayee Mohanty
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, India
- Homi Bhabha National Institute, Training School Complex, Mumbai, India
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Shivran N, Koiry SP, Kushwah N, Chauhan AK, Aswal DK, Chattopadhyay S, Mula S. Effect of Alkyl Chain Length on Current‐Voltage Characteristics of BODIPY Molecules Deposited on Si(n
++
) Substrates. ChemistrySelect 2022. [DOI: 10.1002/slct.202203711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Neelam Shivran
- Bio-Organic Division Bhabha Atomic Research Centre 400085 Mumbai India
| | - Shankar P. Koiry
- Technical Physics Division Bhabha Atomic Research Centre 400085 Mumbai India
- Homi Bhabha National Institute Anushakti Nagar 400094 Mumbai India
| | - Nisha Kushwah
- Chemistry Division Bhabha Atomic Research Centre 400085 Mumbai India
| | - Anil K. Chauhan
- Technical Physics Division Bhabha Atomic Research Centre 400085 Mumbai India
- Homi Bhabha National Institute Anushakti Nagar 400094 Mumbai India
| | - Dinesh K. Aswal
- Homi Bhabha National Institute Anushakti Nagar 400094 Mumbai India
- Health, Safety and Environment Group Bhabha Atomic Research Centre 400085 Mumbai India
| | | | - Soumyaditya Mula
- Bio-Organic Division Bhabha Atomic Research Centre 400085 Mumbai India
- Homi Bhabha National Institute Anushakti Nagar 400094 Mumbai India
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Zhang GQ, Chi KN, Yao C, Yang T, Zhang RL, Hu R, Yang YH. Amino-Functionalized Perylenediimide Derivative with Dual Fluorescence Emission for the Detection of Ascorbic Acid in Vivo and Vitro. LUMINESCENCE 2022; 37:1741-1750. [PMID: 35896481 DOI: 10.1002/bio.4350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/19/2022] [Accepted: 07/24/2022] [Indexed: 11/09/2022]
Abstract
The rapid, sensitive, and selective detection of ascorbic acid (AA) is of significance in medical assays and diagnostics. In this work, a new amino perylenediimide derived (APDI) ratiometric fluorescent probe based on the specific redox reaction of cobalt oxyhydroxide (CoOOH) and AA was constructed. APDI exhibited dual fluorescence emission peaks at 549 and 596 nm with an excitation wavelength of 494 nm. In the presence of CoOOH, the dual fluorescence could be quenched. The dominant fluorescence quenching mechanism was caused by the inner filter effect. Using the red emission as a reference, the fluorescence intensity ratio (F549 /F596 ) was linearly correlated with the concentration of AA over a range of 0.05 to 1 μM. The limit of detection for AA was found to be 17 nM. Importantly, the probe was successfully used to detect AA in living cells. Therefore, this high sensitivity and selectivity strategy could directly survey the AA levels in real samples.
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Affiliation(s)
- Gui-Qun Zhang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, P.R. China
| | - Kuan-Neng Chi
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, P.R. China
| | - Chao Yao
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, P.R. China
| | - Tong Yang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, P.R. China
| | - Rui-Lin Zhang
- School of Forensic Medicine, Kunming Medical University, Kunming, P.R. China
| | - Rong Hu
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, P.R. China
| | - Yun-Hui Yang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, P.R. China
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Barooah N, Mohanty J, Bhasikuttan AC. Cucurbituril-Based Supramolecular Assemblies: Prospective on Drug Delivery, Sensing, Separation, and Catalytic Applications. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:6249-6264. [PMID: 35535760 DOI: 10.1021/acs.langmuir.2c00556] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Precise control over the stimuli-responsive noncovalent interactions operative in a complex molecular system has emerged as a convenient way to realize applications in the detection and sensing of trace analytes, metal ion separation, uptake-release, in situ nanoparticle synthesis, and catalytic activity. This feature article focuses on the attributes and advantages of noncovalent host-guest interactions involving cucurbituril homologues (CBs) with a wide range of organic and inorganic guests, starting from organic dyes to drugs, proteins, surfactants, metal ions, and polyoxometalates. The unique structural features of CBs provide interaction sites for cations at the portals, polyanions at the periphery, and hydrophobic groups in its cavity. The facile complexation and consequent compositional and geometrical arrangements of guests such as naphthalenediimides, coumarins, porphyrins, and triphenylpyrylium ions with the host CBs led to remarkable changes in many molecular properties, especially aggregation, the proton binding and release affinity, and novel emissive dimers, and each of such spectroscopic signatures have been appropriately channeled to drug delivery and activation to improve the antibacterial efficacy and shelf life of drugs by increasing their photostability. Several technological advantages have also been extracted from the interaction of CBs with inorganic guests as well. The interaction of CB7 with the heptamolybdate anion resulted in the precipitation of a hybrid complex material which enabled a convenient separation methodology for the use of clinically pure radioactive 99mTc in diagnostic applications. Certain cucurbituril-based hybrid materials have been developed for enhanced SO2 adsorption at low pressures, high-efficiency hydrogen production, and reversible catalytic systems. Thus, this feature article provides a glimpse of the vast potential of cucurbituril homologues with organic and inorganic guests and calls for a dedicated effort to explore supramolecular strategies for better sensors, therapeutics, smart drug delivery modules, and facile devices.
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Affiliation(s)
- Nilotpal Barooah
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Jyotirmayee Mohanty
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Achikanath C Bhasikuttan
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
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Khurana R, Mohanty J, Barooah N, Bhasikuttan AC. Photoinduced emissive naphthalenediimide radical anion in the confinement of cucurbituril nanocavity; in situ generation of gold nanoparticles. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Abstract
Electrochemical CO2 reduction is a promising carbon capture and utilisation technology. Herein, a continuous flow gas diffusion electrode (GDE)-cell configuration has been studied to convert CO2 via electrochemical reduction under atmospheric conditions. To this purpose, Cu-based electrocatalysts immobilised on a porous and conductive GDE have been tested. Many system variables have been evaluated to find the most promising conditions able to lead to increased production of CO2 reduction liquid products, specifically: applied potentials, catalyst loading, Nafion content, KHCO3 electrolyte concentration, and the presence of metal oxides, like ZnO or/and Al2O3. In particular, the CO productivity increased at the lowest Nafion content of 15%, leading to syngas with an H2/CO ratio of ~1. Meanwhile, at the highest Nafion content (45%), C2+ products formation has been increased, and the CO selectivity has been decreased by 80%. The reported results revealed that the liquid crossover through the GDE highly impacts CO2 diffusion to the catalyst active sites, thus reducing the CO2 conversion efficiency. Through mathematical modelling, it has been confirmed that the increase of the local pH, coupled to the electrode-wetting, promotes the formation of bicarbonate species that deactivate the catalysts surface, hindering the mechanisms for the C2+ liquid products generation. These results want to shine the spotlight on kinetics and transport limitations, shifting the focus from catalytic activity of materials to other involved factors.
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Kadam V, Kakatkar AS, Barooah N, Chatterjee S, Bhasikuttan AC, Mohanty J. Supramolecular interaction of sanguinarine dye with sulfobutylether-β-cyclodextrin: modulation of the photophysical properties and antibacterial activity. RSC Adv 2020; 10:25370-25378. [PMID: 35517463 PMCID: PMC9055271 DOI: 10.1039/d0ra03823g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 06/22/2020] [Indexed: 12/20/2022] Open
Abstract
The noncovalent host-guest interaction of sanguinarine (SGR), a benzophenanthridine alkaloid, with a nontoxic, water soluble sulfobutylether-β-cyclodextrin (SBE7βCD, commercially available as Captisol) macrocyclic host has been investigated using ground-state optical absorption, and steady-state and time-resolved fluorescence measurements. The pH-dependent changes in the absorbance of the dye at 327 nm showed a pK a value of 7.5, which has been shifted to 8.1 in the presence of SBE7βCD. The changes in the pK a values, absorption and fluorescence spectra, and fluorescence lifetime values of these two forms of SG with SBE7βCD indicate complex formation between them. The cationic form shows 3 times higher interaction towards SEB7βCD (K = 1.2 × 104 M-1) as compared to the neutral form (K = 3.9 × 103 M-1) which leads to a moderate upward pK a shift (pK a values of SGR shifted by more than 0.6 units). The subsequent fluorescence "turn off" was demonstrated to be responsive to chemical stimuli, such as metal ions (Ca2+ ions). Upon addition of Ca2+ ions, nearly quantitative dissociation of the complex was established to regenerate the free dye and result in fluorescence "turn on". Apart from improving the stability under ambient light conditions, the upward pK a shift of SGR in the presence of SBE7βCD results in increasing the antibacterial activity of the SBE7βCD:SGR complex compared to that of the free dye towards four pathogenic micro-organisms at the physiological pH range. This work further compares SGR interaction with parent β-cyclodextrin.
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Affiliation(s)
- Vidya Kadam
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre Mumbai 400 085 India +91 22 2550 5151
| | - Aarti S Kakatkar
- Food Technology Division, Bhabha Atomic Research Centre Mumbai 400 085 India
| | - Nilotpal Barooah
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre Mumbai 400 085 India +91 22 2550 5151
| | - Suchandra Chatterjee
- Food Technology Division, Bhabha Atomic Research Centre Mumbai 400 085 India
- Homi Bhabha National Institute, Training School Complex Anushaktinagar Mumbai 400094 India
| | - Achikanath C Bhasikuttan
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre Mumbai 400 085 India +91 22 2550 5151
- Homi Bhabha National Institute, Training School Complex Anushaktinagar Mumbai 400094 India
| | - Jyotirmayee Mohanty
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre Mumbai 400 085 India +91 22 2550 5151
- Homi Bhabha National Institute, Training School Complex Anushaktinagar Mumbai 400094 India
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Mehra C, Gala R, Kakatkar A, Kumar V, Khurana R, Chatterjee S, Kumar NN, Barooah N, Bhasikuttan AC, Mohanty J. Cooperative enhancement of antibacterial activity of sanguinarine drug through p-sulfonatocalix[6]arene functionalized silver nanoparticles. Chem Commun (Camb) 2020; 55:14275-14278. [PMID: 31720595 DOI: 10.1039/c9cc07378g] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The amelioration of antibacterial efficacy along with the reduced minimum inhibitory concentration (MIC) of sanguinarine (SGR) drug have been demonstrated through the uptake of SGR by p-sulfonatocalix[6]arene functionalized silver nanoparticles. The large upward pKa shift and enhanced stability of SGR resulting from the favorable supra-nanomolecular strategy are deciphered into an improved antibacterial drug against different pathogenic micro-organisms including multi drug resistant bacteria.
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Affiliation(s)
- Chahat Mehra
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
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Shivran N, Koiry SP, Majumder C, Chauhan AK, Aswal DK, Chattopadhyay S, Mula S. Tuning of electron tunneling: a case study using BODIPY molecular layers. Phys Chem Chem Phys 2020; 22:2098-2104. [DOI: 10.1039/c9cp05918k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Using simple surface chemistry, rectification characteristics can be tuned to reproducible negative differential resistance (NDR) with a very high peak-to-valley ratio (PVR) up to 1000 in BODIPY grafted on Si.
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Affiliation(s)
- Neelam Shivran
- Bio-Organic Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - Shankar P. Koiry
- Technical Physics Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
- Homi Bhabha National Institute
| | - Chiranjib Majumder
- Homi Bhabha National Institute
- Mumbai 400094
- India
- Chemistry Division
- Bhabha Atomic Research Centre
| | - Anil K. Chauhan
- Technical Physics Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
- Homi Bhabha National Institute
| | - Dinesh K. Aswal
- Homi Bhabha National Institute
- Mumbai 400094
- India
- National Physical Laboratory
- India
| | | | - Soumyaditya Mula
- Bio-Organic Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
- Homi Bhabha National Institute
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