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Chakraborty G, Malegaonkar JN, Bhosale SV, Singh PK, Pal H. Host-Assisted Aggregation-Induced Emission of a Tetraphenylethylene Derivative and Its Responses toward External Stimuli. J Phys Chem B 2021; 125:11122-11133. [PMID: 34609145 DOI: 10.1021/acs.jpcb.1c04653] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Aggregation-induced emission (AIE) of fluorogenic dyes offers many opportunities as smart materials, fluorescence sensing of analytes, bioimaging, molecular electronics, and many others. AIE dyes (called AIEgens) produce emission through aggregation, which are more advantageous than conventional emission of monomeric fluorophores, as the latter is unduly susceptible toward various quenching processes. Here, we report AIE enhancement of a polyanionic sulfonato-tetraphenylethylene (SuTPE) derivative, achieved through supramolecularly assisted dye aggregation, as SuTPE interacts with a multicationic amino-β-cyclodextrin (AβCD) host. Aggregation of the dye is induced mainly because of strong electrostatic interaction of SuTPE with AβCD, causing a significant extent of charge neutralization for the polyanionic dyes, helping their assemblage at the multicationic host portal. Job's plot studies suggest preferential formation of 2:1 dye-to-host stoichiometric complexes in the present system. Ionic-strength-dependent studies nicely support the involvement of electrostatic interaction in the present system through salt-induced disintegration of the SuTPE-AβCD complexes. The AIE enhancement for the SuTPE-AβCD system is very sensitive to the external stimuli, such as pH and temperature, suggesting its prospects in various stimuli-responsive applications. Furthermore, the SuTPE-AβCD system can suitably quantify an important bioanalyte, ATP, following a competitive binding strategy, suggesting its potential application as a supramolecular biosensor.
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Affiliation(s)
- Goutam Chakraborty
- Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Jotiram N Malegaonkar
- Polymers and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Sidhanath V Bhosale
- Polymers and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Prabhat K Singh
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India.,Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Haridas Pal
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
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Agnes M, Thanassoulas A, Stavropoulos P, Nounesis G, Miliotis G, Miriagou V, Athanasiou E, Benkovics G, Malanga M, Yannakopoulou K. Designed positively charged cyclodextrin hosts with enhanced binding of penicillins as carriers for the delivery of antibiotics: The case of oxacillin. Int J Pharm 2017; 531:480-491. [DOI: 10.1016/j.ijpharm.2017.04.080] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 04/26/2017] [Accepted: 04/30/2017] [Indexed: 02/07/2023]
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Schönbeck C, Westh P, Holm R. Complexation Thermodynamics of Modified Cyclodextrins: Extended Cavities and Distorted Structures. J Phys Chem B 2014; 118:10120-9. [DOI: 10.1021/jp506001j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Christian Schönbeck
- NSM,
Research Unit for Functional Biomaterials, Roskilde University, Universitetsvej 1, DK-4000 Roskilde, Denmark
- Biologics
and Pharmaceutical Science, H. Lundbeck A/S, Ottiliavej 9, DK-2500 Valby, Denmark
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
- Sino-Danish Center for Education and Research (SDC), Niels Jensens Vej 2, DK-8000 Aarhus C, Denmark
| | - Peter Westh
- NSM,
Research Unit for Functional Biomaterials, Roskilde University, Universitetsvej 1, DK-4000 Roskilde, Denmark
| | - René Holm
- Biologics
and Pharmaceutical Science, H. Lundbeck A/S, Ottiliavej 9, DK-2500 Valby, Denmark
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Lo Meo P, D’Anna F, Gruttadauria M, Riela S, Noto R. Synthesis and characterization of new polyamino-cyclodextrin materials. Carbohydr Res 2012; 347:32-9. [DOI: 10.1016/j.carres.2011.10.029] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2011] [Revised: 10/07/2011] [Accepted: 10/18/2011] [Indexed: 10/16/2022]
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Wang HM, Wenz G. Solubilization of polycyclic aromatics in water by γ-cyclodextrin derivatives. Chem Asian J 2011; 6:2390-9. [PMID: 21739610 DOI: 10.1002/asia.201100217] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2011] [Indexed: 11/07/2022]
Abstract
A series of hydrophilic per-6-thio-6-deoxy-γ-cyclodextrins (CDs) were synthesized from per-6-iodo-6-deoxy-γ-CD. These new hosts are able to solubilize polycyclic aromatic guests in aqueous solution to much higher extents than native CDs. Phase-solubility diagrams were mostly linear in accordance with both 1:1 and 1:2 CD-guest complexes in aqueous solution. The stoichiometry of the inclusion complexes was further investigated by fluorescence spectroscopy, which revealed very pronounced Stokes shifts typical for 1:2 complexes. This finding was further consolidated by quantum mechanical calculations of dimer formation of the guests and space-filling considerations by using the cross-sectional areas of the CDs and guests. The calculated dimerization energies correlated well with the binding free energies measured for the 1:2 complexes, and provided the main contribution to the driving force of complexation in the γ-CD cavity.
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Affiliation(s)
- Hai Ming Wang
- Organische Makromolekulare Chemie, Saarland University, Geb. C4.2, 66123 Saarbrücken, Germany
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Jeppesen MD, Hein K, Nissen P, Westh P, Otzen DE. A thermodynamic analysis of fibrillar polymorphism. Biophys Chem 2010; 149:40-6. [PMID: 20435401 DOI: 10.1016/j.bpc.2010.03.016] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2010] [Revised: 03/09/2010] [Accepted: 03/09/2010] [Indexed: 11/29/2022]
Abstract
We explore the thermodynamic properties of three different fibrils of the peptide hormone glucagon, formed under different salt conditions (glycine, sulfate and NaCl, respectively), and differing considerably in compactness. The three fibrils display a large variation in the specific heat capacity DeltaC(p) determined by isothermal titration calorimetry. Sulfate fibrils show a negative DeltaC(p) expected from a folding reaction, while the DeltaC(p) for glycine fibrils is essentially zero. NaCl fibrils, which are less stable than the other fibrils, have a large and positive C(p). The predicted change in solvent accessible area is not a useful predictor of fibrillar DeltaC(p) unlike the case for globular proteins. We speculate that strong backbone interactions may lead to the unfavorable burial of polar side residues, water and/or charged groups which all can have major influence on the change in C(p). These results highlight differences in the driving forces of native folding and fibril formation.
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Affiliation(s)
- Martin D Jeppesen
- Center for Insoluble Protein Structures (inSPIN), Interdisciplinary Nanoscience Centre, University of Aarhus, Gustav Wieds Vej 10C, DK-8000 Aarhus C, Denmark
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Watanabe K, Negi S, Sugiura Y, Kiriyama A, Honbo A, Iga K, Kodama E, Naitoh T, Matsuoka M, Kano K. Binding of Multivalent Anionic Porphyrins to V3 Loop Fragments of an HIV-1 Envelope and Their Antiviral Activity. Chem Asian J 2010; 5:825-34. [DOI: 10.1002/asia.200900465] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Lo Meo P, D'Anna F, Gruttadauria M, Riela S, Noto R. Binding properties of mono-(6-deoxy-6-amino)-β-cyclodextrin towards p-nitroaniline derivatives: a polarimetric study. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.10.032] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Wenz G, Strassnig C, Thiele C, Engelke A, Morgenstern B, Hegetschweiler K. Recognition of Ionic Guests by Ionic β-Cyclodextrin Derivatives. Chemistry 2008; 14:7202-11. [DOI: 10.1002/chem.200800295] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Kano K, Watanabe K, Ishida Y. Porphyrin J-Aggregates Stabilized by Ferric Myoglobin in Neutral Aqueous Solution. J Phys Chem B 2008; 112:14402-8. [DOI: 10.1021/jp802567b] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Koji Kano
- Department of Molecular Chemistry and Biochemistry, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Kenji Watanabe
- Department of Molecular Chemistry and Biochemistry, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Yoshiyuki Ishida
- Department of Molecular Chemistry and Biochemistry, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
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