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Huang J, Wang X, Huang T, Yang Y, Tu J, Zou J, Yang H, Yang R. Application of sodium sulfobutylether-β-cyclodextrin based on encapsulation. Carbohydr Polym 2024; 333:121985. [PMID: 38494236 DOI: 10.1016/j.carbpol.2024.121985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 02/06/2024] [Accepted: 02/23/2024] [Indexed: 03/19/2024]
Abstract
Sodium Sulfobutylether-β-cyclodextrin (SBE-β-CD) is a derivative of β-cyclodextrin, characterized by its stereo structure, which closely resembles a truncated cone with a hydrophobic internal cavity. The solubility of insoluble substances within the hydrophobic cavity is significantly enhanced, reducing contact between the guest and the environment. Consequently, SBE-β-CD is frequently employed as a co-solvent and stabilizer. As the research progresses, it has been observed that the inclusion of SBE-β-CD is reversible and competitive. Besides, some inclusion complexes undergo distinct physicochemical property alterations compared to the guests. Additionally, certain guests exhibit varying inclusions with SBE-β-CD at different concentrations. These features have contributed to the expanding applications. SBE-β-CD finds widespread application in pharmaceutics as a protective agent and pKa regulator, in pharmaceutical analysis as a chiral substance separator, and in biomedical engineering for encapsulating dyes and modifying sensors. The article will elaborate in detail on the physicochemical properties of SBE-β-CD, encapsulation principles, and factors influencing the formation of inclusion complexes. Furthermore, the review focuses on the application of SBE-β-CD through encapsulation in pharmaceutics, pharmaceutical analysis, and biomedical engineering. Finally, the prospects and potential applications of SBE-β-CD are discussed.
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Affiliation(s)
- Jiaqi Huang
- Center for Research Development and Evaluation of Pharmaceutical Excipients and Generic Drugs, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China; National Institutes for Food and Drug Control, National Key Laboratory for Quality Control of Pharmaceutical Excipients, Beijing 100050, China
| | - Xiaofeng Wang
- National Institutes for Food and Drug Control, National Key Laboratory for Quality Control of Pharmaceutical Excipients, Beijing 100050, China
| | - Ting Huang
- Center for Research Development and Evaluation of Pharmaceutical Excipients and Generic Drugs, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China; National Institutes for Food and Drug Control, National Key Laboratory for Quality Control of Pharmaceutical Excipients, Beijing 100050, China
| | - Yang Yang
- Center for Research Development and Evaluation of Pharmaceutical Excipients and Generic Drugs, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China; National Institutes for Food and Drug Control, National Key Laboratory for Quality Control of Pharmaceutical Excipients, Beijing 100050, China
| | - Jiasheng Tu
- Center for Research Development and Evaluation of Pharmaceutical Excipients and Generic Drugs, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Jian Zou
- National Institutes for Food and Drug Control, National Key Laboratory for Quality Control of Pharmaceutical Excipients, Beijing 100050, China
| | - Huiying Yang
- National Institutes for Food and Drug Control, National Key Laboratory for Quality Control of Pharmaceutical Excipients, Beijing 100050, China.
| | - Rui Yang
- National Institutes for Food and Drug Control, National Key Laboratory for Quality Control of Pharmaceutical Excipients, Beijing 100050, China.
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Liu A, Liu Z, Liang R, Qin W. Polymeric membrane potentiometric antibiotic sensors using computer-aided screening of supramolecular macrocyclic carriers. Analyst 2024; 149:1738-1745. [PMID: 38324339 DOI: 10.1039/d3an02154h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
Carrier-based polymeric membrane potentiometric sensors are an ideal tool for detecting ionic species. However, in the fabrication of these sensors, the screening of carriers still relies on empirical trial- and error-based optimization, which requires tedious and time-consuming experimental verification. In this work, computer-aided screening of carriers is applied in the preparation of polymeric membrane potentiometric sensors. Molecular docking is used to study the host-guest interactions between receptors and targets. Binding energies are employed as the standard to screen the appropriate carrier. As a proof-of-concept experiment, the antibiotic ciprofloxacin is selected as the target model. A series of supramolecular macrocyclic receptors including cyclodextrins, cucurbiturils and calixarenes are chosen as potential receptors. The proposed sensor based on the receptor calix[4]arene screened by molecular docking shows a lower detection limit of 0.5 μmol L-1 for ciprofloxacin. It can be expected that the proposed computer-aided screening technique of carriers can provide a simple but highly efficient method for the fabrication of carrier-based electrochemical and optical sensors.
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Affiliation(s)
- Aohua Liu
- School of Pharmacy, Binzhou Medical University, Yantai, Shandong 264003, P.R. China
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS); Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, Shandong 264003, P.R. China.
| | - Zhe Liu
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS); Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, Shandong 264003, P.R. China.
| | - Rongning Liang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS); Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, Shandong 264003, P.R. China.
| | - Wei Qin
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS); Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, Shandong 264003, P.R. China.
- Laboratory for Marine Biology and Biotechnology, Qingdao Marine Science and Technology Center, Qingdao, Shandong 266237, P.R. China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, Shandong 266071, P.R. China
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3
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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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4
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Shinde A, Panchal K, Katke S, Paliwal R, Chaurasiya A. Tyrosine kinase inhibitors as next generation oncological therapeutics: Current strategies, limitations and future perspectives. Therapie 2021; 77:425-443. [PMID: 34823895 DOI: 10.1016/j.therap.2021.10.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 10/04/2021] [Accepted: 10/19/2021] [Indexed: 02/09/2023]
Abstract
Protein kinases, a class of enzymes that govern various biological phenomena at a cellular level, are responsible for signal transduction in cells that regulate cellular proliferation, differentiation, and growth. Protein kinase enzyme mutation results in abnormal cell division leading to a pathological condition like cancer. Tyrosine kinase (TK) inhibitors, which helps as a potential drug candidate for the treatment of cancer, are continuously being developed. Majority of these drug candidates are being administered as conventional oral dosage form, which provides limited safety and efficacy due to non-specific delivery and uncontrolled biodistribution resulting into the adverse effects. A controlled drug delivery approach for the delivery of TK inhibitors may be a potential strategy with significant safety and efficacy profile. Novel drug delivery strategies provide target-specific drug delivery, improved pharmacokinetic behaviour, and sustained release leading to lower doses and dosing frequency with significantly reduced side effects. Along with basic aspects of tyrosine kinase, this review discusses various aspects related to the application of tyrosine kinase inhibitors in clinical oncological setting. Furthermore, the limitations/challenges and formulation advancements related to this class of candidates particularly for cancer management have been reviewed. It is expected that innovations in drug delivery approaches for TK inhibitors using novel techniques will surely provide a new insights for improved cancer treatment and patients' life quality.
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Affiliation(s)
- Aishwarya Shinde
- Translational Pharmaceutics Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science, Pilani Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal District, Telangana 500078, India
| | - Kanan Panchal
- Translational Pharmaceutics Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science, Pilani Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal District, Telangana 500078, India
| | - Sumeet Katke
- Translational Pharmaceutics Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science, Pilani Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal District, Telangana 500078, India
| | - Rishi Paliwal
- Nanomedicine and Bioengineering Research Laboratory, Department of Pharmacy, Indira Gandhi National Tribal University, Amarkantak 484886, India
| | - Akash Chaurasiya
- Translational Pharmaceutics Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science, Pilani Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal District, Telangana 500078, India.
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5
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Sueishi Y, Hagiwara S, Inazumi N, Hanaya T. Inclusion complexation of 4′,6-diamidino-2-phenylindole (DAPI) with cucurbit[7]uril and cyclodextrins (native β-, 2,6-di-O-methylated β-, and γ-cyclodextrin): characteristic inclusion behaviour and fluorescence enhancement. J INCL PHENOM MACRO 2021. [DOI: 10.1007/s10847-020-01042-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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6
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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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7
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Zhao L, Tang B, Tang P, Sun Q, Suo Z, Zhang M, Gan N, Yang H, Li H. Chitosan/Sulfobutylether-β-Cyclodextrin Nanoparticles for Ibrutinib Delivery: A Potential Nanoformulation of Novel Kinase Inhibitor. J Pharm Sci 2020; 109:1136-1144. [DOI: 10.1016/j.xphs.2019.10.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 09/07/2019] [Accepted: 10/01/2019] [Indexed: 12/15/2022]
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8
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Chakraborty G, Ray AK, Singh PK, Pal H. Does the degree of substitution on the cyclodextrin hosts impact their affinity towards guest binding? Photochem Photobiol Sci 2020; 19:956-965. [DOI: 10.1039/d0pp00103a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The degree of substitution on βCD rims by sulfobutylether groups significantly modulates the binding affinity of the SBEnβCD hosts for the studied cationic guest molecule.
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Affiliation(s)
- Goutam Chakraborty
- Laser and Plasma Technology Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - Alok K. Ray
- Laser and Plasma Technology Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
- Homi Bhabha National Institute
| | - Prabhat K. Singh
- Homi Bhabha National Institute
- Mumbai-400094
- India
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
| | - Haridas Pal
- Homi Bhabha National Institute
- Mumbai-400094
- India
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
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9
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Mora AK, Khan S, Patro BS, Nath S. Is DAPI assay of cellular nucleic acid reliable in the presence of protein aggregates? Chem Commun (Camb) 2020; 56:13844-13847. [DOI: 10.1039/d0cc04108d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Intracellular amyloid fibrils prevent exclusive staining of nuclei by DAPI.
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Affiliation(s)
- Aruna K. Mora
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
| | - Sufiyan Khan
- Ramnarain Ruia Autonomous College
- Mumbai 400 019
- India
| | - Birija S. Patro
- Homi Bhabha National Institute
- Mumbai 400 094
- India
- Bio-Organic Division
- Bhabha Atomic Research Centre
| | - Sukhendu Nath
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
- Homi Bhabha National Institute
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10
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Khurana R, Barooah N, Bhasikuttan AC, Mohanty J. Supramolecular Assembly Induced Emission of Thiazole Orange with Sulfobutylether β-cyclodextrin: A Stimuli-Responsive Fluorescence Sensor for Tyramine. Chemphyschem 2019; 20:2498-2505. [PMID: 31397953 DOI: 10.1002/cphc.201900656] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 08/06/2019] [Indexed: 12/14/2022]
Abstract
Modulation and control of stimuli responsive features of molecular assemblies in organized assemblies/cavitand macrocycles have received immense attention in many areas. In this study, we have established the formation of a discrete molecular assembly of thiazole orange (TO) dyes at the portals of the sulfobutylether β-cyclodextrin (SBE7 βCD) macrocycle leading to the evolution of a strong and distinct emission band from aggregated TO. The supramolecular assembly promoted portal aggregation of TO in its 1 : 4 (SBE7 βCD : TO) composition, characterized by absorption, fluorescence, circular dichroism, ITC and 1 H NMR measurements, was probed to be selectively responsive to tyramine among other biogenic amines/neurotransmitters. For the first time, the different extent of emission quenching of SBE7 βCD : TO assembly in the presence of biogenic amines/neurotransmitters is translated to achieve a selective on-off fluorescence sensor for the detection of tyramine against other neurotransmitters with a limit-of-detection (LOD) as low as ∼575 nM (79 ppb). The emission features of the assembly with changes in temperature is found to be highly reproducible even after several temperature cycles and is promising to design an optical supramolecular thermometer in the ambient temperature range.
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Affiliation(s)
- Raman Khurana
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India.,Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai, India
| | - Nilotpal Barooah
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India
| | - Achikanath C Bhasikuttan
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India.,Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai, India
| | - Jyotirmayee Mohanty
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India.,Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai, India
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11
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Khurana R, Kakatkar AS, Chatterjee S, Barooah N, Kunwar A, Bhasikuttan AC, Mohanty J. Supramolecular Nanorods of (N-Methylpyridyl) Porphyrin With Captisol: Effective Photosensitizer for Anti-bacterial and Anti-tumor Activities. Front Chem 2019; 7:452. [PMID: 31294017 PMCID: PMC6598724 DOI: 10.3389/fchem.2019.00452] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 06/05/2019] [Indexed: 01/02/2023] Open
Abstract
Porphyrins, especially the 5,10,15,20-tetrakis(4-N-methylpyridyl) porphyrin (TMPyP), are well-accepted as photosensitizers due to strong absorption from visible to near-infrared region, good singlet oxygen quantum yields as well as chemical versatility, all of which can be further modulated through planned supramolecular strategies. In this study, we report the construction of supramolecular nanorods of TMPyP dye/drug with captisol [sulfobutylether-β-cyclodextrin (SBE7βCD)] macrocycle through host-guest interaction. The availability of four cationic N-methylpyridyl groups favors multiple binding interaction with the captisol host, building an extended supramolecular assembly of captisol and TMPyP. In addition to the spectroscopic characterizations for the assembly formation, the same has been pictured in SEM and FM images as nanorods of ~10 μm in length or more. Complexation of TMPyP has brought out beneficial features over the uncomplexed TMPyP dye; enhanced singlet oxygen yield, improved photostability, and better photosensitizing effect, all supportive of efficient photodynamic therapy activity. The Captisol:TMPyP complex displayed enhanced antibacterial activity toward E. coli under white light irradiation as compared to TMPyP alone. Cell viability studies performed in lung carcinoma A549 cells with light irradiation documented increased cytotoxicity of the complex toward the cancer cells whereas reduced dark toxicity is observed toward normal CHO cells. All these synergistic effects of supramolecular nanorods of Captisol-TMPyP complex make the system an effective photosensitizer and a superior antibacterial and antitumor agent.
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Affiliation(s)
- Raman Khurana
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, India.,Homi Bhabha National Institute, Training School Complex, Mumbai, India
| | - Aarti S Kakatkar
- Food Technology Division, Bhabha Atomic Research Centre, Mumbai, India
| | | | - Nilotpal Barooah
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Amit Kunwar
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, India.,Homi Bhabha National Institute, Training School Complex, Mumbai, India
| | - Achikanath C Bhasikuttan
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, India.,Homi Bhabha National Institute, Training School Complex, Mumbai, India
| | - Jyotirmayee Mohanty
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, India.,Homi Bhabha National Institute, Training School Complex, Mumbai, India
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12
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A Supramolecular Approach for Enhanced Antibacterial Activity and Extended Shelf-life of Fluoroquinolone Drugs with Cucurbit[7]uril. Sci Rep 2018; 8:13925. [PMID: 30224752 PMCID: PMC6141578 DOI: 10.1038/s41598-018-32312-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 09/05/2018] [Indexed: 12/24/2022] Open
Abstract
The host-guest interactions of a third-generation fluoroquinone, danofloxacin (DOFL), with the macrocyclic host cucurbit[7]uril (CB7) have been investigated at different pH values (~3.5, 7.5, and 10). The photophysical properties have been positively affected, that is, the fluorescence yield and lifetime increased, as well as the photostability of DOFL improved in the presence of CB7. The antibacterial activity of DOFL is enhanced in the presence of CB7, as tested against four pathogenic bacteria; highest activity has been found towards B. cereus and E. coli, and lower activity towards S. aureus and S. typhi. The antibacterial activity of two additional second-generation fluoroquinones, i.e., norfloxacin and ofloxacin, has also been investigated in the absence as well as the presence of CB7 and compared with that of DOFL. In case of all drugs, the minimum inhibitory concentration (MIC) was reduced 3–5 fold in the presence of CB7. The extended shelf-life (antibacterial activity over time) of the fluoroquinone drugs in the presence of CB7, irrespective of four types of bacteria, can be attributed to the enhanced photostability of their CB7 complexes, which can act as better antibiotics with a longer expiry date than uncomplexed DOFL.
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13
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Khurana R, Agarwalla S, Sridhar G, Barooah N, Bhasikuttan AC, Mohanty J. Ultra-Bright Rhodamines with Sulfobutylether-β-Cyclodextrin: A Viable Supramolecular Dye Laser in Aqueous Medium. Chemphyschem 2018; 19:2349-2356. [PMID: 29947036 DOI: 10.1002/cphc.201800373] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Indexed: 01/08/2023]
Abstract
Although aqueous dye lasers are much sought after, they have been of no practical use, as laser dyes show a strong tendency for aggregation in water, thus diminishing their optical output. Contributing towards this shortcoming, we studied the noncovalent interactions of two prominent laser dyes, namely, rhodamine 6G and rhodamine B, with a water soluble macrocyclic host, sulfobutylether-β-cyclodextrin (SBE7 βCD). Spectral changes in the absorption and fluorescence behavior of dyes in presence of the SBE7 βCD host indicated adequate complex formation between dye and host (K∼104 M-1 ). A combination of various photophysical parameters evaluated from measurements such as Job plot, changes in the fluorescence lifetime/anisotropy values, and favorable thermodynamic parameters from isothermal titration calorimetric measurements adjudicated a 1 : 1 stoichiometric complex formation between dye and SBE7 βCD host. Consequently, SBE7 βCD prevents dye aggregation/adsorption and present rhodamine dyes in their monomeric forms with enhanced fluorescence yield and brightness. These vital parameters were utilized to optimize and demonstrate cost-effective supramolecular broad-band and narrow-band aqueous dye laser systems with improved lasing efficiencies (∼25 % higher for the SBE7 βCD : RhB system and ∼10 % higher for SBE7 βCD : Rh6G system), better beam profile, and enhanced durability compared to the respective dyes in optically matched ethanol solutions.
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Affiliation(s)
- Raman Khurana
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India.,Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai, India
| | - Sandeep Agarwalla
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai, India.,Laser & Plasma Technology Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India
| | - G Sridhar
- Laser & Plasma Technology Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India
| | - Nilotpal Barooah
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India
| | - Achikanath C Bhasikuttan
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India.,Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai, India
| | - Jyotirmayee Mohanty
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India.,Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai, India
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14
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Prajapati R, Mukherjee TK. Effect of surfactant assemblies on the resonance energy transfer from 4′,6-diamidino-2-phenylindole to silver nanoclusters. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2017.11.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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15
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Shinde MN, Khurana R, Barooah N, Bhasikuttan AC, Mohanty J. Metal ion-induced supramolecular pKa tuning and fluorescence regeneration of a p-sulfonatocalixarene encapsulated neutral red dye. Org Biomol Chem 2017; 15:3975-3984. [DOI: 10.1039/c7ob00506g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Supramolecular pKa shift and fluorescence quenching in a neutral red dye in the presence of p-sulfonatocalix[4/6]arenes have been demonstrated, which are relevant for the off–on switch, ion sensitive electrodes and drug delivery vehicles.
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Affiliation(s)
- M. N. Shinde
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
- Student under BARC-SPPU PhD Program
| | - R. Khurana
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
- Homi Bhabha National Institute
| | - N. Barooah
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
| | - A. C. Bhasikuttan
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
- Homi Bhabha National Institute
| | - J. Mohanty
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
- Homi Bhabha National Institute
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16
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Kalyani VS, Malkhede DD, Mohanty J. Cyclodextrin-assisted modulation of the photophysical properties and acidity constant of pyrene-armed calix[4]arene. Phys Chem Chem Phys 2017; 19:21382-21389. [DOI: 10.1039/c7cp01894k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The supramolecular pKa shift and modulation in the monomer and excimer emission behaviour of pyrene-armed calixarene with cyclodextrins find applications in ratiometric sensing.
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Affiliation(s)
- V. S. Kalyani
- Department of Chemistry
- Savitribai Phule Pune University
- Pune 411 007
- India
| | - D. D. Malkhede
- Department of Chemistry
- Savitribai Phule Pune University
- Pune 411 007
- India
| | - J. Mohanty
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
- Homi Bhabha National Institute
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17
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Prajapati R, Chatterjee S, Kannaujiya KK, Mukherjee TK. Effect of compartmentalization of donor and acceptor on the ultrafast resonance energy transfer from DAPI to silver nanoclusters. NANOSCALE 2016; 8:13006-13016. [PMID: 27304093 DOI: 10.1039/c6nr01792d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The mechanism and dynamics of excitation energy transfer (EET) from photo-excited 4',6-diamidino-2-phenylindole (DAPI) to silver nanoclusters (Ag NCs) and its subsequent modulation in the presence of cationic polymer poly(diallyldimethylammonium chloride) (PDADMAC) and Calf Thymus DNA (CT-DNA) have been demonstrated using steady-state fluorescence and femtosecond fluorescence upconversion techniques. The synthesized Ag NCs were characterized using FTIR, mass spectrometry, XPS, HRTEM, DLS, UV-Vis and PL spectroscopy. Mass spectrometric analysis reveals the formation of ultrasmall Ag4 NCs with a small amount of Ag5 NCs. UV-Vis and PL spectra reveal distinct molecular-like optoelectronic behaviour of these ultrasmall Ag NCs. The dihydrolipoic acid-capped Ag NCs strongly quench the fluorescence of DAPI with concomitant increase in its photoluminescence (PL) intensity at 675 nm. This steady-state fluorescence quenching proceeds with a significant shortening of the fluorescence lifetime of DAPI in the presence of Ag NCs, signifying the nonradiative Förster resonance energy transfer (FRET) from DAPI to Ag NCs. Various energy transfer parameters have been estimated from FRET theory. The present FRET pair shows a characteristic Förster distance of 2.45 nm and can be utilized as a reporter of short-range distances in various FRET based applications. Moreover, this nonradiative FRET is completely suppressed in the presence of both 0.2 wt% PDADMAC and CT-DNA. Our results reveal selective compartmentalization of Ag NCs and DAPI in the presence of 0.2 wt% PDADMAC and CT-DNA, respectively. This selective compartmentalization of donor and acceptor and the subsequent modification of the FRET process may find application in various sensing, photovoltaic, and light harvesting applications.
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Affiliation(s)
- Roopali Prajapati
- Discipline of Chemistry, Indian Institute of Technology Indore, Simrol Campus, Khandwa Road, Indore-453552, M.P., India.
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18
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Shinde MN, Bhasikuttan AC, Mohanty J. Recognition-mediated contrasting fluorescence behaviour of 4′,6-diamidino-2-phenylindole (DAPI): probing the pKa of p-sulfonatocalix[4/6]arenes. Supramol Chem 2016. [DOI: 10.1080/10610278.2015.1126591] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Meenakshi N. Shinde
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, , India
- Student under BARC-SPPU PhD Program, Department of Chemistry, Savitribai Phule Pune University, Pune, India
| | - Achikanath C. Bhasikuttan
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, , India
- Chemical Sciences, Homi Bhabha National Institute, , India
| | - Jyotirmayee Mohanty
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, , India
- Chemical Sciences, Homi Bhabha National Institute, , India
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