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Hazra R, Bera N, Layek S, Sarkar N. Efficiency of Encapsulation of Thioflavin T (ThT) into Polar and Nonpolar Environments of Different Bile Salt Aggregates: A Femtosecond Fluorescence Study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:16272-16282. [PMID: 39042864 DOI: 10.1021/acs.langmuir.4c01460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
The binding of Thioflavin T (ThT) with various bile salts, a potential host molecule, has been analyzed by steady-state and time-resolved fluorescence spectroscopy. A comparative study has been executed to investigate the influence of confinement of different bile salts, namely, sodium cholate (NaCh), sodium taurocholate (NaTC), and sodium deoxycholate (NaDC) on binding and excited state torsional motion of ThT molecules. The changes in absorption and emission properties of probe molecules were found to be sensitive to increasing bile salt concentration in aqueous 0.2 (M) NaCl solutions. The photophysics of ThT mainly depends on hydrophobicity, morphology, and size of bile salt aggregates in solution. In the presence of bile salts, the emission intensity and emission lifetime of ThT increase significantly, indicating encapsulation of dye. Moreover, we have also investigated the effect of the ionic strength of the medium by sodium chloride (NaCl) on the spectroscopic properties of ThT in the restricted surroundings of aqueous bile salts. It is observed that the fluorescence lifetime of ThT in bile salts increases significantly in the presence of NaCl. The encapsulation efficiency of ThT in bile salt aggregates has been assessed by iodide (I-) as an external ionic quencher. We found that NaDC aggregates are more efficient in the modulation of photophysical properties of ThT and also provide better protection efficiency to decrease the nonradiative deactivation processes.
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Affiliation(s)
- Ritwik Hazra
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Nanigopal Bera
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Souvik Layek
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Nilmoni Sarkar
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
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2
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Moyano Rodríguez E, Gomez-Mendoza M, Pérez-Ruiz R, Peñín B, Sampedro D, Caamaño A, de la Peña O’Shea VA. Controlled Synthesis of Up-Conversion NaYF 4:Yb,Tm Nanoparticles for Drug Release under Near IR-Light Therapy. Biomedicines 2021; 9:1953. [PMID: 34944769 PMCID: PMC8699023 DOI: 10.3390/biomedicines9121953] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/03/2021] [Accepted: 12/07/2021] [Indexed: 11/16/2022] Open
Abstract
Up-Conversion materials have received great attention in drug delivery applications in recent years. A specifically emerging field includes the development of strategies focusing on photon processes that promote the development of novel platforms for the efficient transport and the controlled release of drug molecules in the harsh microenvironment. Here, modified reaction time, thermal treatment, and pH conditions were controlled in the synthesis of NaYF4:Yb,Tm up-converted (UC) material to improve its photoluminescence properties. The best blue-emission performance was achieved for the UC3 sample prepared through 24 h-synthesis without thermal treatment at a pH of 5, which promotes the presence of the β-phase and smaller particle size. NaYF4:Yb,Tm has resulted in a highly efficient blue emitter material for light-driven drug release under near-IR wavelength. Thus, NaYF4:Yb,Tm up-converted material promotes the N-O bond cleavage of the oxime ester of Ciprofloxacin (prodrug) as a highly efficient photosensitized drug delivery process. HPLC chromatography and transient absorption spectroscopy measurements were performed to evaluate the drug release conversion rate. UC3 has resulted in a very stable and easily recovered material that can be used in several reaction cycles. This straightforward methodology can be extended to other drugs containing photoactive chromophores and is present as an alternative for drug release systems.
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Affiliation(s)
- Edelweiss Moyano Rodríguez
- Signal Theory and Communications and Telematic System and Computing, Rey Juan Carlos University, Cam/del Molino 5, 28942 Madrid, Spain;
- Photoactivated Processes Unit, IMDEA Energy Institute, C/Ramón de la Sagra, 3, 28935 Madrid, Spain; (M.G.-M.); (R.P.-R.)
| | - Miguel Gomez-Mendoza
- Photoactivated Processes Unit, IMDEA Energy Institute, C/Ramón de la Sagra, 3, 28935 Madrid, Spain; (M.G.-M.); (R.P.-R.)
| | - Raúl Pérez-Ruiz
- Photoactivated Processes Unit, IMDEA Energy Institute, C/Ramón de la Sagra, 3, 28935 Madrid, Spain; (M.G.-M.); (R.P.-R.)
- Departamento de Química, Universitat Politècnica de València, Camino de Vera S/N, 46022 Valencia, Spain
| | - Beatriz Peñín
- Departamento de Química, Centro de Investigación en Síntesis Química (CISQ), Universidad de La Rioja, Madre de Dios 53, 26006 Logroño, Spain; (B.P.); (D.S.)
| | - Diego Sampedro
- Departamento de Química, Centro de Investigación en Síntesis Química (CISQ), Universidad de La Rioja, Madre de Dios 53, 26006 Logroño, Spain; (B.P.); (D.S.)
| | - Antonio Caamaño
- Signal Theory and Communications and Telematic System and Computing, Rey Juan Carlos University, Cam/del Molino 5, 28942 Madrid, Spain;
| | - Víctor A. de la Peña O’Shea
- Photoactivated Processes Unit, IMDEA Energy Institute, C/Ramón de la Sagra, 3, 28935 Madrid, Spain; (M.G.-M.); (R.P.-R.)
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Wang X, Zhang S, Zhao H, Wang Q, Zhang Y, Xu H, Xia X, Han S. Spectroscopic Investigation into the Binding of Ferulic Acid with Sodium Deoxycholate: Hydrophobic Force Versus Hydrogen Bonding. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:1420-1428. [PMID: 33475381 DOI: 10.1021/acs.langmuir.0c02880] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The binding of ferulic acid (FA) with sodium deoxycholate (NaDC) has been investigated using fluorescence and absorption measurements. The fluorescence probe technique of pyrene reveals that the presence of FA favors the micellization of NaDC, leading to the decreased critical micelle concentrations for the formation of NaDC micelles. As NaDC molecules change gradually from monomers via primary micelles into secondary micelles, the intensities of absorption and fluorescence spectra of FA increase at low NaDC concentrations, but decrease suddenly at intermediate NaDC concentrations, and finally increase again at high NaDC concentrations. These results corroborated well with FA fluorescence lifetime data suggesting that the aryl ring of FA hydrophobically binds to the convex surface of NaDC monomers, whereas the hydrogen bonding between FA and NaDC is significantly involved in NaDC primary micelles, which is gradually overcome by the hydrophobic interaction between FA and NaDC secondary micelles. The absorption and fluorescence spectra as well as the binding constant value of FA indicate the strong binding of FA in the large hydrophobic core of NaDC secondary micelles. At low FA concentrations, the measurement of FA anisotropy suggests that FA can increase the packing order of hydrophobic surfaces in NaDC secondary micelles, whereas the high amount of FA can greatly disrupt the packing structure of NaDC secondary micelles which is ascribed to the formation of FA dimers. The spectroscopic experiments outlined here present the binding events of FA with NaDC monomers and primary and secondary micelles, which are significantly related with the hydrophobic force and hydrogen bonding as well as the unique structural characteristics of bile salt.
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Affiliation(s)
- Xiaoyong Wang
- School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Shan Zhang
- School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Huiling Zhao
- School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Qian Wang
- School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yuke Zhang
- School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Hexiang Xu
- School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xinyu Xia
- School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Simin Han
- School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
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4
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Sharma P, Sohal N, Maity B. Encapsulation and release of non-fluorescent crystal violet confined in bile-salt aggregates. RSC Adv 2021; 11:10912-10921. [PMID: 35423564 PMCID: PMC8695816 DOI: 10.1039/d0ra06599d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 03/02/2021] [Indexed: 11/21/2022] Open
Abstract
In this work, the entrapment of non-fluorescent dye Crystal Violet (CV) in presence of bio-mimetic confined bile-salt aggregates has been studied. The photophysical characteristic properties of CV have been carried out by changing different kinds of hydrophilic head groups and hydrophobic skeletons of bile-salt aggregates (NaC, NaDC, NaTC and NaTGC). The main aim of this work is to modulate the solubility behaviour, fluorescence properties and elucidation of different kinds of non-covalent interaction of CV confined in bile-salt aggregates. To interpret the result, steady state absorption and fluorescence emission techniques have been employed. In aqueous buffer, the CV molecule is non-fluorescent in nature. The value of fluorescence quantum yield (Φ) is ∼10−4. It has been observed that CV confined in bile-salt aggregates becomes highly fluorescent in nature. The enhancement of ‘Φ’ value of CV in bile-salt aggregates is ∼1000 fold compared to that of aqueous buffer medium. It has also been observed that in the presence of different bile-salt aggregates, CV exhibits remarkable enhancement of absorption and fluorescence emission spectral behaviour. The ground state and the excited state binding constant values of CV in the presence of different bile-salt aggregates have been determined. Moreover, the release of the dye molecule from the confined bile-salt aggregates to the aqueous medium has been executed. It has been found that addition of a very minute concentration of KCl salt (100 nm) to the bile-salt aggregates leads to extreme modification of their photophysical properties of CV. The absorption, fluorescence intensity, fluorescence quantum yield, ground state and excited state binding constant values, partition coefficient and aggregation number of CV molecules entrapped in bile-salt aggregates significantly reduces by addition of KCl. This result clearly confirms that CV releases from the confined system to the aqueous medium. In this work, the entrapment of non-fluorescent dye Crystal Violet (CV) in presence of bio-mimetic confined bile-salt aggregates has been studied.![]()
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Affiliation(s)
- Prachi Sharma
- School of Chemistry and Biochemistry
- Thapar Institute of Engineering and Technology
- Patiala 147004
- India
| | - Neeraj Sohal
- School of Chemistry and Biochemistry
- Thapar Institute of Engineering and Technology
- Patiala 147004
- India
| | - Banibrata Maity
- School of Chemistry and Biochemistry
- Affiliate Faculty-TIET-Virginia Tech Center of Excellence in Emerging Materials
- Thapar Institute of Engineering and Technology
- Patiala-147004
- India
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5
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di Gregorio MC, Severoni E, Travaglini L, Gubitosi M, Sennato S, Mura F, Redondo-Gómez C, Jover A, Pavel NV, Galantini L. Bile acid derivative-based catanionic mixtures: versatile tools for superficial charge modulation of supramolecular lamellae and nanotubes. Phys Chem Chem Phys 2018; 20:18957-18968. [PMID: 29972162 DOI: 10.1039/c8cp02745e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Self-assembled structures formed by mixtures of cationic and anionic surfactants are interesting tools for applications requiring interactions with charged particles and molecules. Nevertheless, they present instability close to the equimolar composition and poor morphological versatility, which is generally restricted to vesicles and micelles. Against this general trend, we report on bile salt derivative based catanionic mixtures assembling in tubules and lamellae depending on the mixture composition. Electrophoretic mobility measurements prove that the composition also dictates their superficial charge, which can be tuned from negative to positive by increasing the positively charged surfactant fraction in the mixtures. The study of the catanionic aggregates was conducted by means of microscopy and spectroscopy techniques and compared to the self-assembly behaviors of the individual building blocks. This study broadens the so far small array of bile salt derivative catanionic systems, confirming their distinctive behavior in the spectrum of catanionic mixtures.
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6
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Das K, Satpathi S, Hazra P. Effect of Bile Salt Aggregates on the Prototropic Equilibria of Harmine, a Fluorescent β-Carboline Alkaloid. ChemistrySelect 2018. [DOI: 10.1002/slct.201702817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Konoya Das
- Department of Chemistry; Indian Institute of Science Education and Research (IISER); Pune 411008), Maharashtra India
| | - Sagar Satpathi
- Department of Chemistry; Indian Institute of Science Education and Research (IISER); Pune 411008), Maharashtra India
| | - Partha Hazra
- Department of Chemistry; Indian Institute of Science Education and Research (IISER); Pune 411008), Maharashtra India
- Centre for Energy Science; Indian Institute of Science Education and Research (IISER); Pune 411008), Maharashtra India
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7
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Rodriguez-Muñiz GM, Gomez-Mendoza M, Nuin E, Andreu I, Marin ML, Miranda MA. "Snorkelling" vs. "diving" in mixed micelles probed by means of a molecular bathymeter. Org Biomol Chem 2017; 15:10281-10288. [PMID: 29186227 DOI: 10.1039/c7ob02595e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A photoactive bathymeter based on a carboxylic acid moiety covalently linked to a signalling methoxynaphthalene (MNP) fluorophore has been designed to prove the concept of "snorkelling" vs. "diving" in mixed micelles (MM). The carboxylic acid "floats" on the MM surface, while the MNP unit sinks deep in MM. The rate constants of MNP fluorescence quenching by iodide, which remains basically in water, consistently decrease with increasing spacer length, revealing different regions. This is associated with the distance MNP should "dive" in MM to achieve protection from aqueous reactants. Unequivocal proof of the exergonic photoinduced electron transfer was obtained from the UV-visible spectral signature of I3- upon steady-state photolysis. The applicability of the bathymeter was examined upon testing a family of MNP derivatives. The obtained results were validated by comparison with different lipophilicity tests: (i) a modified version of the Kow partition coefficient and (ii) the retention factor on thin layer chromatography. This concept could potentially be extended to test drugs or pharmacophores exhibiting any photoactive moiety.
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Affiliation(s)
- Gemma M Rodriguez-Muñiz
- Instituto Universitario Mixto de Tecnología Química (UPV-CSIC) Universitat Politècnica de València, Avda de los Naranjos s/n, 46022 Valencia, Spain
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8
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Sen S, Paul BK, Guchhait N. Differential interaction behaviors of an alkaloid drug berberine with various bile salts. J Colloid Interface Sci 2017; 505:266-277. [DOI: 10.1016/j.jcis.2017.05.081] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 05/19/2017] [Accepted: 05/24/2017] [Indexed: 01/17/2023]
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9
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Paul BK, Sett R, Guchhait N. Stepwise unfolding of Ribonuclease A by a biosurfactant. J Colloid Interface Sci 2017; 505:673-681. [DOI: 10.1016/j.jcis.2017.06.051] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 06/16/2017] [Accepted: 06/16/2017] [Indexed: 11/29/2022]
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10
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Spectroscopic Investigation of the Interaction of the Anticancer Drug Mitoxantrone with Sodium Taurodeoxycholate (NaTDC) and Sodium Taurocholate (NaTC) Bile Salts. Molecules 2017; 22:molecules22071079. [PMID: 28657593 PMCID: PMC6152313 DOI: 10.3390/molecules22071079] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 06/14/2017] [Accepted: 06/21/2017] [Indexed: 12/25/2022] Open
Abstract
The focus of the present work was to investigate the interaction of the anticancer drug mitoxantrone with two bile salts, sodium taurodeoxycholate (NaTDC) and sodium taurocholate (NaTC). Ultraviolet-visible (UV-Vis) absorption and electron paramagnetic resonance (EPR) spectroscopy were used to quantify the interaction and to obtain information on the location of mitoxantrone in bile salt micelles. The presence of submicellar concentrations of both bile salts induces mitoxantrone aggregation and the extent of drug aggregation in NaTDC is higher than in NaTC. For micellar bile salts concentrations, mitoxantrone monomers are entrapped in the micellar core. Binding constants, micelle/water partition coefficients and the corresponding thermodynamic parameters for binding and partitioning processes were estimated using the changes in monomer absorbance in the presence of bile salts. Binding interaction of mitoxantrone is stronger for NaTDC than NaTC micelles, whereas partitioning efficiency is higher for NaTC micelles for all investigated temperatures. Thermodynamic parameters indicate that both binding and partitioning processes are spontaneous and entropy controlled. The spectral behavior and thermodynamic parameters indicate distinct types of mitoxantrone interaction with NaTDC and NaTC micelles supported by the differences in nature and structure of bile salts micelles.
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11
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Mukherjee K, Barman A, Biswas R. Impact of the aggregation behaviour of sodium cholate and sodium deoxycholate on aqueous solution structure and dynamics: A combined time resolved fluorescence and dielectric relaxation spectroscopic study. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.07.053] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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12
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Solubilization and Interaction Studies of Bile Salts with Surfactants and Drugs: a Review. Appl Biochem Biotechnol 2016; 179:179-201. [PMID: 26781714 DOI: 10.1007/s12010-016-1987-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 01/10/2016] [Indexed: 01/10/2023]
Abstract
In this review, bile salt, bile salt-surfactant, and bile salt-drug interactions and their solubilization studies are mainly focused. Usefulness of bile salts in digestion, absorption, and excretion of various compounds and their rare properties in ordering the shape and size of the micelles owing to the presence of hydrophobic and hydrophilic faces are taken into consideration while compiling this review. Bile salts as potential bio-surfactants to solubilize drugs of interest are also highlighted. This review will give an insight into the selection of drugs in different applications as their properties get modified by interaction with bile salts, thus influencing their solution behavior which, in turn, modifies the phase-forming behavior, microemulsion, and clouding phenomenon, besides solubilization. Finally, their future perspectives are taken into consideration to assess their possible uses as bio-surfactants without side effects to human beings.
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13
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Gomez-Mendoza M, Marin ML, Miranda MA. Photoactive bile salts with critical micellar concentration in the micromolar range. Phys Chem Chem Phys 2016; 18:12976-82. [DOI: 10.1039/c6cp00813e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The aggregation behavior of bile salts is strongly dependent on the number of hydroxyl groups.
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Affiliation(s)
- Miguel Gomez-Mendoza
- Instituto de Tecnología Química
- Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas
- 46022 Valencia
- Spain
| | - M. Luisa Marin
- Instituto de Tecnología Química
- Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas
- 46022 Valencia
- Spain
| | - Miguel A. Miranda
- Instituto de Tecnología Química
- Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas
- 46022 Valencia
- Spain
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14
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Thakur R, Das A, Adhikari C, Chakraborty A. Partitioning of prototropic species of an anticancer drug ellipticine in bile salt aggregates of different head groups and hydrophobic skeletons: a photophysical study to probe bile salts as multisite drug carriers. Phys Chem Chem Phys 2015; 16:15681-91. [PMID: 24960221 DOI: 10.1039/c4cp01308e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The entrapment of neutral and cationic species of an anticancer drug, namely ellipticine and their dynamic features in different bile salt aggregates have been investigated for the first time using steady state and time-resolved fluorescence spectroscopy. Because ellipticine exists in various prototropic forms under physiological conditions, we performed comparative photophysical and dynamical studies on these prototropic species in different bile salts varying in their head groups and hydrophobic skeletons. We found that the initial interaction between ellipticine and bile salts is governed by the electrostatic forces where cationic ellipticine is anchored to the head groups of bile salts. Bile salts having conjugated head groups are better candidates to bind with the cationic species than those having the non-conjugated ones. The fact implies that binding of cationic species to different bile salts depends on the pK(a) of the corresponding bile acids. The hydrophobic interaction dominates at higher concentrations of bile salts due to formation of aggregates and results in entrapment of neutral ellipticine molecules according to their hydrophobicity indices. Thus bile salts act as multisite drug carriers. The rotational relaxation parameters of cationic ellipticine were found to be dependent on head groups and the number of hydroxyl groups on the hydrophilic surface of bile salts. Cationic ellipticine exhibits a faster rotational relaxation in the tri-hydroxy bile salt aggregates than in di-hydroxy bile salts. We interpreted this observation from the fact that tri-hydroxy bile salts hold a higher number of water molecules in their hydrophilic surface offering a less viscous environment for ellipticine compared to di-hydroxy bile salts. Surprisingly, the neutral ellipticine molecules display almost the same rotational relaxation in all the bile salts. The observation indicates that after intercalation inside the hydrophobic pocket, neutral ellipticine molecules experience similar confinement in all the bile salts.
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Affiliation(s)
- Raina Thakur
- Department of Chemistry, Indian Institute of Technology Indore, IET, M-Block, India.
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15
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Nuin E, Sastre G, Pischel U, Andreu I, Miranda MA. Configuration-Dependent Photoinduced Electron Transfer in Diastereomeric Naphthalene-Amino-Naphthalene Triads. Chemistry 2015. [PMID: 26215923 DOI: 10.1002/chem.201501008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Novel diastereomeric triads containing two naphthalene chromophores have been designed in which an electron-donating amine moiety is covalently integrated into the connecting bridge. Photophysical studies (steady-state and time-resolved fluorescence) in solvents of different polarity have been performed. A remarkable stereodifferentiation in the intramolecular fluorescence quenching was found in acetonitrile. Laser flash photolysis gave rise to naphthalene-derived radical cations, which were also quenched by the amine with an even higher degree of stereodifferentiation. The results are in agreement with thermodynamic estimations and indicate that photoinduced electron transfer (PET) is the main quenching pathway. Furthermore, theoretical calculations have allowed us to explain the experimentally observed stereodifferentiation in PET quenching.
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Affiliation(s)
- Edurne Nuin
- Instituto de Tecnología Química UPV-CSIC, Universitat Politècnica de València, Avenida de los Naranjos s/n, 46022 Valencia (Spain), Fax: (+34) 96-387-9444
| | - German Sastre
- Instituto de Tecnología Química UPV-CSIC, Universitat Politècnica de València, Avenida de los Naranjos s/n, 46022 Valencia (Spain), Fax: (+34) 96-387-9444
| | - Uwe Pischel
- CIQSO-Centro de Investigación en Química Sostenible y Departamento de Ingeniería Química, Química Física y Química Orgánica, Universidad de Huelva, Campus de El Carmen s/n, 21071 Huelva (Spain)
| | - Inmaculada Andreu
- Unidad Mixta de Investigación IIS La Fe-UPV, Hospital Universitari i Politècnic La Fe, Avenida de Fernando Abril Martorell 106, 46026 Valencia (Spain), Fax: (+34) 96-349-4420.
| | - Miguel A Miranda
- Instituto de Tecnología Química UPV-CSIC, Universitat Politècnica de València, Avenida de los Naranjos s/n, 46022 Valencia (Spain), Fax: (+34) 96-387-9444.
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16
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Roy A, Kundu N, Banik D, Kuchlyan J, Sarkar N. How does bile salt penetration affect the self-assembled architecture of pluronic P123 micelles? – light scattering and spectroscopic investigations. Phys Chem Chem Phys 2015; 17:19977-90. [DOI: 10.1039/c5cp02296g] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The triblock copolymer of the type (PEO)20–(PPO)70–(PEO)20 (P123) forms a mixed supramolecular aggregate with different bile salts, sodium deoxycholate (NaDC) and sodium taurocholate (NaTC), having different hydrophobicity.
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Affiliation(s)
- Arpita Roy
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Niloy Kundu
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Debasis Banik
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Jagannath Kuchlyan
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Nilmoni Sarkar
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
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17
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Ganguly A, Ghosh S, Guchhait N. Modulated photophysics of an anthracene-based fluorophore within bile-salt aggregates: the effect of the ionic strength of the medium on the aggregation behavior. Photochem Photobiol Sci 2015; 14:2168-78. [DOI: 10.1039/c5pp00280j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Binding interactions of an anthracene-based fluorescent probe with a series of bile-salt aggregates of varying hydrophobicity, as well as salt induced alterations of the binding behavior have been thoroughly demonstrated.
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Affiliation(s)
| | - Soumen Ghosh
- Department of Chemistry
- University of Calcutta
- Calcutta-700009
- India
| | - Nikhil Guchhait
- Department of Chemistry
- University of Calcutta
- Calcutta-700009
- India
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18
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Kundu N, Banik D, Roy A, Kuchlyan J, Sarkar N. Modulation of the aggregation properties of sodium deoxycholate in presence of hydrophilic imidazolium based ionic liquid: water dynamics study to probe the structural alteration of the aggregates. Phys Chem Chem Phys 2015; 17:25216-27. [DOI: 10.1039/c5cp03906a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this article, we have investigated the effect of hydrophilic 1-butyl-3-methylimidazolium tetrafluoroborate on the aggregation properties of sodium deoxycholate (NaDC).
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Affiliation(s)
- Niloy Kundu
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Debasis Banik
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Arpita Roy
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Jagannath Kuchlyan
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Nilmoni Sarkar
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
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19
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Oliverio F, Nuin E, Andreu I, Ragno G, Miranda MA. Assessment of drug entrapment within liposomes using photophysical probes. Eur J Pharm Biopharm 2014; 88:551-5. [PMID: 24973632 DOI: 10.1016/j.ejpb.2014.06.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 06/06/2014] [Accepted: 06/10/2014] [Indexed: 10/25/2022]
Abstract
The photophysical and photochemical behavior of (R)-cinacalcet (CIN) and (S)-naproxen (NPX) entrapped within liposomes has been studied. For this purpose, liposome encapsulated drugs have been prepared through thin layer evaporation and characterized by transmission electron microscopy, cryoscopy scanning electron microscopy and dynamic light scattering. Steady state and time-resolved fluorescence experiments showed similar spectra, emission quantum yields, singlet energies and lifetimes for the selected drugs, outside and inside liposomes. By contrast, laser flash photolysis experiments revealed an important enhancement of the triplet lifetimes for entrapped drugs inside liposomes, indicating the spatial confinement existing in the microenvironment prevailing in these biomimetic entities. Thus, this photophysical property shows potential as a non-invasive, direct and valuable tool to monitor encapsulation of photoactive drugs and to probe the intraliposome environment. In addition, it provides a new quantitative indicator of the capability of liposomes to act as drug carriers.
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Affiliation(s)
- Filomena Oliverio
- Instituto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València, Consejo Superior de Investigaciones Científicas, Valencia, Spain; Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy
| | - Edurne Nuin
- Instituto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València, Consejo Superior de Investigaciones Científicas, Valencia, Spain
| | - Inmaculada Andreu
- Unidad Mixta de Investigación IIS La Fe-UPV, Hospital La Fe, Valencia, Spain
| | - Gaetano Ragno
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy.
| | - Miguel A Miranda
- Instituto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València, Consejo Superior de Investigaciones Científicas, Valencia, Spain.
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20
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Banerjee C, Ghosh S, Mandal S, Kuchlyan J, Kundu N, Sarkar N. Exploring the photophysics of curcumin in zwitterionic micellar system: an approach to control ESIPT process in the presence of room temperature ionic liquids (RTILs) and anionic surfactant. J Phys Chem B 2014; 118:3669-81. [PMID: 24617495 DOI: 10.1021/jp411778q] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In this manuscript, we have modulated the photophysical properties of curcumin in a zwitterionic (N-hexadecyl-N,N-dimethylammonio-1-propanesulfonate (SB-16)) micellar aggregates with addition of room temperature ionic liquids (RTILs) as well as commonly used anionic surfactant (SDS), using steady-state and time-resolved spectroscopic techniques. To modulate the photophysics, first we studied its interaction with an SB-16 micellar system, then to further exploit its photophysics, three RTILs (EmimES, EmimBS, EmimHS) with variation of alkyl chain lengths as well as SDS were used. It is observed that the rate of degradation of curcumin is drastically decreased after partitioning into the zwitterionic micellar system. It is shown that the dynamics of excited state intramolecular proton transfer (ESIPT) processes can be controlled by using those RTILs and SDS. Our study also reveals that the hindrance of nonradiative processes of curcumin, i.e., ESIPT is more pronounced in the case of RTIL containing a long alkyl chain compared to a small one. However, most interestingly the addition of long chain (dodecyl) anionic surfactant (SDS) promotes the ESIPT process of curcumin. We have also studied the effect of the addition of inorganic salt and compared the results with RTILs. The present work demonstrates an effort to decipher the photophysics of curcumin in zwitterionic micellar systems by monitoring its excited state dynamics.
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Affiliation(s)
- Chiranjib Banerjee
- Department of Chemistry, Indian Institute of Technology , Kharagpur 721302, West Bengal, India
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21
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Mandal S, Ghosh S, Banik D, Banerjee C, Kuchlyan J, Sarkar N. An Investigation into the Effect of the Structure of Bile Salt Aggregates on the Binding Interactions and ESIHT Dynamics of Curcumin: A Photophysical Approach To Probe Bile Salt Aggregates as a Potential Drug Carrier. J Phys Chem B 2013; 117:13795-807. [PMID: 24102639 DOI: 10.1021/jp407824t] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Sarthak Mandal
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Surajit Ghosh
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Debasis Banik
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Chiranjib Banerjee
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Jagannath Kuchlyan
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Nilmoni Sarkar
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
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22
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Nuin E, Gomez-Mendoza M, Marin ML, Andreu I, Miranda MA. Influence of Drug Encapsulation within Mixed Micelles on the Excited State Dynamics and Accessibility to Ionic Quenchers. J Phys Chem B 2013; 117:9327-32. [DOI: 10.1021/jp404353u] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Edurne Nuin
- Instituto Universitario Mixto
de Tecnología Química (UPV-CSIC), Universitat Politècnica de València, Avenida de los
Naranjos s/n, 46022 Valencia, Spain
| | - Miguel Gomez-Mendoza
- Instituto Universitario Mixto
de Tecnología Química (UPV-CSIC), Universitat Politècnica de València, Avenida de los
Naranjos s/n, 46022 Valencia, Spain
| | - M. Luisa Marin
- Instituto Universitario Mixto
de Tecnología Química (UPV-CSIC), Universitat Politècnica de València, Avenida de los
Naranjos s/n, 46022 Valencia, Spain
| | - Inmaculada Andreu
- Unidad Mixta de Investigación
IIS La Fe−UPV, Hospital La Fe, Avda.
Campanar 21, 46009 Valencia, Spain
| | - Miguel A. Miranda
- Instituto Universitario Mixto
de Tecnología Química (UPV-CSIC), Universitat Politècnica de València, Avenida de los
Naranjos s/n, 46022 Valencia, Spain
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23
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Mandal S, Ghosh S, Aggala HHK, Banerjee C, Rao VG, Sarkar N. Modulation of the photophysical properties of 2,2'-bipyridine-3,3'-diol inside bile salt aggregates: a fluorescence-based study for the molecular recognition of bile salts. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:133-143. [PMID: 23215031 DOI: 10.1021/la304319r] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
2,2'-Bipyridine-3,3'-diol (BP(OH)(2)) has been used as a sensitive excited-state intramolecular proton transfer fluorophore to assess different bile salt aggregates as one of the potential biologically relevant host systems useful for carrying many sparingly water-soluble drug molecules. The formation of inclusion complexes, complex-induced fluorescence behavior, and their binding ability have been investigated from the modulated photophysics of BP(OH)(2) by means of photophysical techniques. The constrained hydrophobic environment provided by the aggregates significantly reduces the water-assisted nonradiative decay channels and lengthens the fluorescence lifetime of the proton-transferred DK tautomer. Both the absorption and fluorescence properties of BP(OH)(2) are found to be sensitive to the change in the structure, size, and hydrophobicity of the aggregates. Fluorescence quenching experiments were performed to gain insight into the differential distribution of the probe molecules between bulk aqueous phase and nanocavities of various aggregates. The observation of longer fluorescence lifetime and rotational relaxation time in NaDC aggregates compared to that in NaCh and NaTC aggregates indicates that the binding structures of NaDC aggregates are more rigid due to its greater hydrophobicity and larger size and therefore provide better protection to the bound guest. It is noteworthy to mention that the hydrophobic microenvironments provided by bile salt aggregates are much stronger than that provided by micelles and cyclodextrins. The accessibility of water to the aggregate-bound guest can significantly be enhanced with the addition of organic cosolvents. However, the efficiency decreases in the order of dimethylformamide, acetonitrile, and methanol.
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Affiliation(s)
- Sarthak Mandal
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
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24
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Nuin E, Gómez-Mendoza M, Andreu I, Marin ML, Miranda MA. New Photoactive Compounds To Probe Cholic Acid and Cholesterol inside Mixed Micelles. Org Lett 2012; 15:298-301. [DOI: 10.1021/ol303201y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Edurne Nuin
- Instituto Universitario Mixto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València, Avenida de los Naranjos s/n, 46022 Valencia, Spain, and Unidad Mixta de Investigación IIS La Fe−UPV, Hospital La Fe, Avda. Campanar 21, 46009 Valencia, Spain
| | - Miguel Gómez-Mendoza
- Instituto Universitario Mixto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València, Avenida de los Naranjos s/n, 46022 Valencia, Spain, and Unidad Mixta de Investigación IIS La Fe−UPV, Hospital La Fe, Avda. Campanar 21, 46009 Valencia, Spain
| | - Inmaculada Andreu
- Instituto Universitario Mixto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València, Avenida de los Naranjos s/n, 46022 Valencia, Spain, and Unidad Mixta de Investigación IIS La Fe−UPV, Hospital La Fe, Avda. Campanar 21, 46009 Valencia, Spain
| | - M. Luisa Marin
- Instituto Universitario Mixto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València, Avenida de los Naranjos s/n, 46022 Valencia, Spain, and Unidad Mixta de Investigación IIS La Fe−UPV, Hospital La Fe, Avda. Campanar 21, 46009 Valencia, Spain
| | - Miguel A. Miranda
- Instituto Universitario Mixto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València, Avenida de los Naranjos s/n, 46022 Valencia, Spain, and Unidad Mixta de Investigación IIS La Fe−UPV, Hospital La Fe, Avda. Campanar 21, 46009 Valencia, Spain
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