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Spectral-Fluorescent Study of the Interaction of Cationic and Anionic Polymethine Dyes with Sodium Deoxycholate in Aqueous Solutions. J Fluoresc 2019; 29:1161-1170. [DOI: 10.1007/s10895-019-02432-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 08/27/2019] [Indexed: 01/16/2023]
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Tatikolov AS, Pronkin PG, Panova IG. Spectral-fluorescent study of the interaction of polymethine dye probes with biological surfactants - bile salts. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 216:190-201. [PMID: 30901704 DOI: 10.1016/j.saa.2019.03.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 03/05/2019] [Accepted: 03/08/2019] [Indexed: 06/09/2023]
Abstract
Spectral-fluorescent properties of polymethine dye probes anionic 3,3'-di(sulfopropyl)-4,5,4',5'-dibenzo-9-ethylthiacarbocyanine-betaine (DEC) and cationic 3,3',9-trimethylthiacarbocyanine iodide (Cyan 2) in the presence of biological surfactants, bile salts sodium cholate (NaC), sodium deoxycholate (NaDC) and sodium taurocholate (NaTC), as well as sodium dodecyl sulfate (SDS), have been studied in a wide range of surfactant concentrations. When a surfactant is introduced into a solution of DEC, changes of the spectral-fluorescent properties are observed due to decomposition of dye dimers into cis-monomers and cis-trans conversion of the resulting monomers. In the presence of SDS, both processes occur in parallel, caused by noncovalent interaction of dye monomers with micelles, and mainly occur near the critical micelle concentration (CMC). In contrast, upon the introduction of increasing concentrations of bile salts, decomposition of dye dimers into the monomers begins at lower concentrations than cis-trans conversion. The former process is almost completed at concentrations close to CMC of secondary micelles (CMC2), while the latter process occurs even at concentrations of bile salts much higher than CMC2. Hence, DEC can serve as a probe that permits estimating the value of CMC2 and is indicative of reorganization of secondary micelles upon an increase in bile salt concentration. Aggregation of DEC and Cyan 2 on bile salts is also observed. Since it is observed at relatively low concentrations of bile salts (<CMC2), the aggregation probably occurs on monomeric molecules of bile salts and their small associates and primary micelles. Decomposition of the aggregates formed begins at concentrations of bile salts above CMC2 (that is, upon the interaction with secondary micelles).
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Affiliation(s)
- Alexander S Tatikolov
- N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygin St. 4, Moscow 119334, Russia.
| | - Pavel G Pronkin
- N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygin St. 4, Moscow 119334, Russia
| | - Ina G Panova
- N.K. Koltsov Institute of Developmental Biology, Russian Academy of Sciences, Vavilov St. 26, Moscow 119334, Russia
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van Dijken DJ, Štacko P, Stuart MCA, Browne WR, Feringa BL. Chirality controlled responsive self-assembled nanotubes in water. Chem Sci 2017; 8:1783-1789. [PMID: 28451300 PMCID: PMC5396556 DOI: 10.1039/c6sc02935c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Accepted: 11/17/2016] [Indexed: 01/12/2023] Open
Abstract
The concept of using chirality to dictate dimensions and to store chiral information in self-assembled nanotubes in a fully controlled manner is presented. We report a photoresponsive amphiphile that co-assembles with its chiral counterpart to form nanotubes and demonstrate how chirality can be used to effect the formation of either micrometer long, achiral nanotubes or shorter (∼300 nm) chiral nanotubes that are bundled. The nature of these assemblies is studied using a variety of spectroscopic and microscopic techniques and it is shown that the tubes can be disassembled with light, thereby allowing the chiral information to be erased.
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Affiliation(s)
- D J van Dijken
- Centre for Systems Chemistry , Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG , Groningen , The Netherlands .
| | - P Štacko
- Centre for Systems Chemistry , Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG , Groningen , The Netherlands .
| | - M C A Stuart
- Centre for Systems Chemistry , Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG , Groningen , The Netherlands .
- Groningen Biomolecular Sciences and Biotechnology Institute , University of Groningen , Nijenborgh 7 , 9747 AG , Groningen , The Netherlands
| | - W R Browne
- Centre for Systems Chemistry , Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG , Groningen , The Netherlands .
| | - B L Feringa
- Centre for Systems Chemistry , Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG , Groningen , The Netherlands .
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Pashirova TN, Bogdanov AV, Musin LI, Voronina JK, Nizameev IR, Kadirov MK, Mironov VF, Zakharova LY, Latypov SK, Sinyashin OG. Nanoscale isoindigo-carriers: self-assembly and tunable properties. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2017; 8:313-324. [PMID: 28243570 PMCID: PMC5301918 DOI: 10.3762/bjnano.8.34] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 01/09/2017] [Indexed: 05/11/2023]
Abstract
Over the last decade isoindigo derivatives have attracted much attention due to their high potential in pharmacy and in the chemistry of materials. In addition, isoindigo derivatives can be modified to form supramolecular structures with tunable morphologies for the use in drug delivery. Amphiphilic long-chain dialkylated isoindigos have the ability to form stable solid nanoparticles via a simple nanoprecipitation technique. Their self-assembly was investigated using tensiometry, dynamic light scattering, spectrophotometry, and fluorometry. The critical association concentrations and aggregate sizes were measured. The hydrophilic-lipophilic balance of alkylated isoindigo derivatives strongly influences aggregate morphology. In the case of short-chain dialkylated isoindigo derivatives, supramolecular polymers of 200 to 700 nm were formed. For long-chain dialkylated isoindigo derivatives, micellar aggregates of 100 to 200 nm were observed. Using micellar surfactant water-soluble forms of monosubstituted 1-hexadecylisoindigo as well as 1,1'-dimethylisoindigo were prepared for the first time. The formation of mixed micellar structures of different types in micellar anionic surfactant solutions (sodium dodecyl sulfate) was determined. These findings are of practical importance and are of potential interest for the design of drug delivery systems and new nanomaterials.
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Affiliation(s)
- Tatiana N Pashirova
- A.E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str. 8, Kazan, 420088, Russian Federation
| | - Andrei V Bogdanov
- A.E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str. 8, Kazan, 420088, Russian Federation
| | - Lenar I Musin
- A.E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str. 8, Kazan, 420088, Russian Federation
| | - Julia K Voronina
- A.E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str. 8, Kazan, 420088, Russian Federation
| | - Irek R Nizameev
- A.E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str. 8, Kazan, 420088, Russian Federation
| | - Marsil K Kadirov
- A.E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str. 8, Kazan, 420088, Russian Federation
| | - Vladimir F Mironov
- A.E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str. 8, Kazan, 420088, Russian Federation
| | - Lucia Ya Zakharova
- A.E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str. 8, Kazan, 420088, Russian Federation
| | - Shamil K Latypov
- A.E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str. 8, Kazan, 420088, Russian Federation
| | - Oleg G Sinyashin
- A.E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str. 8, Kazan, 420088, Russian Federation
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Tatikolov AS. UV–vis spectral study of the isomeric equilibrium for the anionic polymethine dyes – oxonols in different solvents. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2016.10.063] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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van Dijken DJ, Chen J, Stuart MCA, Hou L, Feringa BL. Amphiphilic Molecular Motors for Responsive Aggregation in Water. J Am Chem Soc 2016; 138:660-9. [DOI: 10.1021/jacs.5b11318] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Derk Jan van Dijken
- Centre for Systems Chemistry, Stratingh
Institute for Chemistry, ‡Groningen Biomolecular
Sciences and Biotechnology Institute, University of Groningen, Nijenborgh
4, 9747 AG Groningen, The Netherlands
| | - Jiawen Chen
- Centre for Systems Chemistry, Stratingh
Institute for Chemistry, ‡Groningen Biomolecular
Sciences and Biotechnology Institute, University of Groningen, Nijenborgh
4, 9747 AG Groningen, The Netherlands
| | - Marc C. A. Stuart
- Centre for Systems Chemistry, Stratingh
Institute for Chemistry, ‡Groningen Biomolecular
Sciences and Biotechnology Institute, University of Groningen, Nijenborgh
4, 9747 AG Groningen, The Netherlands
| | - Lili Hou
- Centre for Systems Chemistry, Stratingh
Institute for Chemistry, ‡Groningen Biomolecular
Sciences and Biotechnology Institute, University of Groningen, Nijenborgh
4, 9747 AG Groningen, The Netherlands
| | - Ben L. Feringa
- Centre for Systems Chemistry, Stratingh
Institute for Chemistry, ‡Groningen Biomolecular
Sciences and Biotechnology Institute, University of Groningen, Nijenborgh
4, 9747 AG Groningen, The Netherlands
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Galán-Jiménez MC, Gómez-Pantoja E, Morillo E, Undabeytia T. Solubilization of herbicides by single and mixed commercial surfactants. THE SCIENCE OF THE TOTAL ENVIRONMENT 2015; 538:262-269. [PMID: 26311582 DOI: 10.1016/j.scitotenv.2015.08.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2015] [Revised: 07/30/2015] [Accepted: 08/01/2015] [Indexed: 06/04/2023]
Abstract
The solubilization capabilities of micellar solutions of three single surfactants, two alcohol alkoxylates B048 and B266, and the tallow alkyl ethoxylated amine ET15, and their equimolar mixed solutions toward the herbicides flurtamone (FL), metribuzin (MTZ) and mesotrione (MST) were investigated. The solubilization capacity was quantified in terms of the molar solubilization ratio (MSR), critical micellar concentration (CMC), micelle-water partition coefficient (Kmc), binding constant (K1), number of aggregation (Nagg) and Stern-Volmer constant (Ksv). The herbicides were greatly solubilized into different loci of the micelles: FL within the inner hydrophobic core, MST at the micelle/water interface and MTZ in the palisade region. Equimolar binary surfactant mixtures did not improve the solubilization of herbicides over those of single components, with the exception of MTZ by the B266/ET15 system which enhanced solubilization by 10-20%. This enhanced solubilization of MTZ was due to an increased number of micelles that arise from both the intermediate Nagg relative to that of the single surfactants and the lower CMC. The use of Ksv values was a better predictor of the solubilization of polar molecules within binary mixtures of these surfactants than the interaction parameter β(M) from regular solution theory (RST). The results herein suggest that the use of mixed surfactant systems for the solubilization of polar molecules in environmental remediation technologies may be very limited in scope, without clear advantages over the use of single surfactant systems.
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Affiliation(s)
- M C Galán-Jiménez
- Institute of Natural Resources and Agrobiology (IRNAS-CSIC), Reina Mercedes 10, Apdo 1052, 41080 Seville, Spain
| | - E Gómez-Pantoja
- Institute of Natural Resources and Agrobiology (IRNAS-CSIC), Reina Mercedes 10, Apdo 1052, 41080 Seville, Spain
| | - E Morillo
- Institute of Natural Resources and Agrobiology (IRNAS-CSIC), Reina Mercedes 10, Apdo 1052, 41080 Seville, Spain
| | - T Undabeytia
- Institute of Natural Resources and Agrobiology (IRNAS-CSIC), Reina Mercedes 10, Apdo 1052, 41080 Seville, Spain.
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Lin KTH, Silzel JW. Relation of molecular structure to Franck-Condon bands in the visible-light absorption spectra of symmetric cationic cyanine dyes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 142:210-219. [PMID: 25703366 DOI: 10.1016/j.saa.2015.01.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2014] [Revised: 12/02/2014] [Accepted: 01/18/2015] [Indexed: 06/04/2023]
Abstract
A Franck-Condon (FC) model is used to study the solution-phase absorbance spectra of a series of seven symmetric cyanine dyes having between 22 and 77 atoms. Electronic transition energies were obtained from routine visible-light absorbance and fluorescence emission spectra. Harmonic normal modes were computed using density functional theory (DFT) and a polarizable continuum solvent model (PCM), with frequencies corrected using measured mid-infrared spectra. The model predicts the relative energies of the two major vibronic bands to within 5% and 11%, respectively, and also reproduces structure-specific differences in vibronic band shapes. The bands themselves result from excitation of two distinct subsets of normal modes, one with frequencies between 150 and 625cm(-1), and the other between 850 and 1480cm(-1). Vibronic transitions excite symmetric in-plane bending of the polymethine chain, in-plane bends of the polymethine and aromatic C-H bonds, torsions and deformations of N-alkyl substituents, and in the case of the indocyanines, in-plane deformations of the indole rings. For two dyes, the model predicts vibronic coupling into symmetry-breaking torsions associated with trans-cis photoisomerization.
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Affiliation(s)
- Katrina Tao Hua Lin
- Department of Chemistry, Physics, and Engineering, Biola University, 13800 Biola Avenue, La Mirada, CA 90639, USA.
| | - John W Silzel
- Department of Chemistry, Physics, and Engineering, Biola University, 13800 Biola Avenue, La Mirada, CA 90639, USA.
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Chen Y, Quan M, Yu H, Zhang L, Yang H, Lu Y. Fabrication of nanofibres with azopyridine compounds in various acids and solvents. RSC Adv 2015. [DOI: 10.1039/c5ra02089a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Supramolecular self-organization behaviours of one azopyridine compound were systematically studied in a series of inorganic acids and various organic solvents.
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Affiliation(s)
- Yinjie Chen
- Department of Materials Physics and Chemistry
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Maohua Quan
- Department of Materials Physics and Chemistry
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Haifeng Yu
- Department of Materials Science and Engineering
- College of Engineering
- Peking University
- Beijing 100871
- P. R. China
| | - Lanying Zhang
- Department of Materials Science and Engineering
- College of Engineering
- Peking University
- Beijing 100871
- P. R. China
| | - Huai Yang
- Department of Materials Physics and Chemistry
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
- Department of Materials Science and Engineering
| | - Yunfeng Lu
- Department of Chemical and Biomolecular Engineering
- University of California
- Los Angeles
- USA
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Correia RF, Viseu MI, Andrade SM. Aggregation/disaggregation of chlorophyll a in model phospholipid-detergent vesicles and micelles. Photochem Photobiol Sci 2014; 13:907-16. [PMID: 24715103 DOI: 10.1039/c3pp50419k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The photosynthetic pigments of higher plants exist in complex oligomeric states, which are difficult to study in vivo. To investigate aggregation processes of chlorophyll a (Chl a), we used an in vitro reconstitution procedure, with this pigment incorporated into liposomes of 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC), micelles and pre-micelle media of the detergent n-dodecyltrimethylammonium chloride (DTAC), and mixed, spontaneous, DMPC-DTAC vesicles and micelles. Chl a oligomers were characterized by UV-visible absorption, steady-state and time-resolved fluorescence, and fluorescence lifetime imaging microscopy. Equivalent diameters of the colloidal structures were obtained by fluorescence correlation spectroscopy. In DMPC liposomes and DMPC-DTAC vesicles and micelles, three fluorescence lifetimes indicated the coexistence of Chl a monomers (≈5 ns) and oligomers (≈1-2 to ≈0.1 ns). The increase in DTAC amount, in the mixed system, induces a progressive solubilization of DMPC liposomes (from vesicles to micelles) and simultaneous disruption of Chl a aggregates; in pure DTAC micelles, mostly monomers were found. The present work aims for a better understanding of chlorophyll-chlorophyll (Chl-Chl), Chl-lipid, and Chl-detergent interactions in spontaneous colloidal micro- and nanostructures.
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Affiliation(s)
- Raquel F Correia
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal.
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