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di Gregorio MC, Cautela J, Galantini L. Physiology and Physical Chemistry of Bile Acids. Int J Mol Sci 2021; 22:1780. [PMID: 33579036 PMCID: PMC7916809 DOI: 10.3390/ijms22041780] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 02/04/2021] [Indexed: 02/06/2023] Open
Abstract
Bile acids (BAs) are facial amphiphiles synthesized in the body of all vertebrates. They undergo the enterohepatic circulation: they are produced in the liver, stored in the gallbladder, released in the intestine, taken into the bloodstream and lastly re-absorbed in the liver. During this pathway, BAs are modified in their molecular structure by the action of enzymes and bacteria. Such transformations allow them to acquire the chemical-physical properties needed for fulling several activities including metabolic regulation, antimicrobial functions and solubilization of lipids in digestion. The versatility of BAs in the physiological functions has inspired their use in many bio-applications, making them important tools for active molecule delivery, metabolic disease treatments and emulsification processes in food and drug industries. Moreover, moving over the borders of the biological field, BAs have been largely investigated as building blocks for the construction of supramolecular aggregates having peculiar structural, mechanical, chemical and optical properties. The review starts with a biological analysis of the BAs functions before progressively switching to a general overview of BAs in pharmacology and medicine applications. Lastly the focus moves to the BAs use in material science.
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Affiliation(s)
- Maria Chiara di Gregorio
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Jacopo Cautela
- Department of Chemistry, Sapienza University of Rome, 00185 Rome, Italy;
| | - Luciano Galantini
- Department of Chemistry, Sapienza University of Rome, 00185 Rome, Italy;
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2
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Cautela J, Severoni E, Redondo-Gómez C, di Gregorio MC, Del Giudice A, Sennato S, Angelini R, D'Abramo M, Schillén K, Galantini L. C-12 vs C-3 substituted bile salts: An example of the effects of substituent position and orientation on the self-assembly of steroid surfactant isomers. Colloids Surf B Biointerfaces 2019; 185:110556. [PMID: 31704607 DOI: 10.1016/j.colsurfb.2019.110556] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 09/08/2019] [Accepted: 10/02/2019] [Indexed: 12/31/2022]
Abstract
Biomolecule derivatives are transversally used in nanotechnology. Deciphering their aggregation behavior is a crucial issue for the rational design of functional materials. To this end, it is necessary to build libraries of selectively functionalized analogues and infer general rules. In this work we enrich the highly applicative oriented collection of steroid derivatives, by reporting a rare example of C-12 selectively modified bile salt. While nature often exploits such position to encode functions, it is unusual and not trivial to prepare similar analogues in the laboratory. The introduction of a tert-butyl phenyl residue at C-12 provided a molecule with a self-assembly that remarkably switched from rigid pole-like structures to twisted ribbons at a biologically relevant critical temperature (∼25 °C). The system was characterized by microscopy and spectroscopy techniques and compared with the C-3 functionalized analogue. The twisted ribbons generate samples with a gel texture and a viscoelastic response. The parallel analysis of the two systems suggested that the observed thermoresponsive self-assemblies occur at similar critical temperatures and are probably dictated by the nature of the substituent, but involve aggregates with different structures depending on position and orientation of the substituent. This study highlights the self-assembly properties of two appealing thermoresponsive systems. Moreover, it adds fundamental insights hereto missing in the investigations of the relation between self-assembly and structure of synthetic steroids, which are valuable for the rational design of steroidal amphiphiles.
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Affiliation(s)
- Jacopo Cautela
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
| | - Emilia Severoni
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
| | - Carlos Redondo-Gómez
- Escuela de Química, Centro de Investigación en Electroquímica y Energía Química (CELEQ), Universidad de Costa Rica, San José, Costa Rica
| | | | | | - Simona Sennato
- CNR-ISC Sede Sapienza, Sapienza University of Rome, P. le A. Moro 5, 00185 Roma, Italy; Department of Physics, Sapienza University of Rome, P. le A. Moro 5, 00185 Roma, Italy
| | - Roberta Angelini
- CNR-ISC Sede Sapienza, Sapienza University of Rome, P. le A. Moro 5, 00185 Roma, Italy; Department of Physics, Sapienza University of Rome, P. le A. Moro 5, 00185 Roma, Italy
| | - Marco D'Abramo
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
| | - Karin Schillén
- Division of Physical Chemistry, Department of Chemistry, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden
| | - Luciano Galantini
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
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di Gregorio MC, Travaglini L, Del Giudice A, Cautela J, Pavel NV, Galantini L. Bile Salts: Natural Surfactants and Precursors of a Broad Family of Complex Amphiphiles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:6803-6821. [PMID: 30234994 DOI: 10.1021/acs.langmuir.8b02657] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Bile salts (BSs) are naturally occurring rigid surfactants with a steroidal skeleton and specific self-assembly and interface behaviors. Using bile salts as precursors, derivatives can be synthesized to obtain molecules with specific functionalities and amphiphilic structure. Modifications on single molecules are normally performed by substituting the least-hindered hydroxyl group on carbon C-3 of the steroidal A ring or at the end of the lateral chain. This leads to monosteroidal rigid building blocks that are often able to self-organize into 1D structures such as tubules, twisted ribbons, and fibrils with helical supramolecular packing. Tubular aggregates are of particular interest, and they are characterized by cross-section inner diameters spanning a wide range of values (3-500 nm). They can form through appealing pH- or temperature-responsive aggregation and in mixtures of bile salt derivatives to provide mixed tubules with tunable charge and size. Other derivatives can be prepared by covalently linking two or more bile salt molecules to provide complex systems such as oligomers, dendrimers, and polymeric materials. The unconventional amphiphilic molecular structure imparts specific features to BSs and derivatives that can be exploited in the formulation of capsules, drug carriers, dispersants, and templates for the synthesis of nanomaterials.
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Affiliation(s)
| | - Leana Travaglini
- CNRS, ISIS UMR 7006 , Université de Strasbourg , 8 allée Gaspard Monge , 67000 Strasbourg , France
| | - Alessandra Del Giudice
- Dipartimento di Chimica , "Sapienza" Università di Roma , P. le A. Moro 5 , 00185 Roma , Italy
| | - Jacopo Cautela
- Dipartimento di Chimica , "Sapienza" Università di Roma , P. le A. Moro 5 , 00185 Roma , Italy
| | - Nicolae Viorel Pavel
- Dipartimento di Chimica , "Sapienza" Università di Roma , P. le A. Moro 5 , 00185 Roma , Italy
| | - Luciano Galantini
- Dipartimento di Chimica , "Sapienza" Università di Roma , P. le A. Moro 5 , 00185 Roma , Italy
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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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Yang H, Qi P, Zhao H. A novel hydrogelator based on dimeric-dehydrocholic acid derivative. Colloid Polym Sci 2018. [DOI: 10.1007/s00396-018-4324-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Shimizu T. Self-Assembly of Discrete Organic Nanotubes. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2018. [DOI: 10.1246/bcsj.20170424] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Toshimi Shimizu
- AIST Fellow, National Institute of Advanced Industrial Science and Technology, Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
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7
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Direct imaging and computational cryo-electron microscopy of ribbons and nanotubes. Curr Opin Colloid Interface Sci 2018. [DOI: 10.1016/j.cocis.2018.05.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Travaglini L, Giordano C, D'Annibale A, Gubitosi M, di Gregorio MC, Schillén K, Stefanucci A, Mollica A, Pavel NV, Galantini L. Twisted nanoribbons from a RGD-bearing cholic acid derivative. Colloids Surf B Biointerfaces 2017; 159:183-190. [PMID: 28787634 DOI: 10.1016/j.colsurfb.2017.07.084] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 07/05/2017] [Accepted: 07/29/2017] [Indexed: 11/16/2022]
Abstract
In light of the biomedical interest for self-assembling amphiphiles bearing the tripeptide Arg-Gly-Gly (RGD), a cholic acid derivative was synthesized by introducing an aromatic moiety on the steroidal skeleton and the RGD sequence on the carboxylic function of its chain 17-24, thus forming a peptide amphiphile with the unconventional rigid amphiphilic structure of bile salts. In aqueous solution, the compound self-assembled into long twisted ribbons characterized by a very low degree of polydispersity in terms of width (≈25nm), thickness (≈4.5nm) and pitch (≈145nm). It was proposed that in the ribbon the molecules are arranged in a bilayer structure with the aromatic moieties in the interior, strongly involved in the intermolecular interaction, whereas the RGD residues are located at the bilayer-water interface. The nanostructure is significantly different from those generally provided by RGD-containing amphiphiles with the conventional peptide-tail structure, for which fibers with a circular cross-section were observed, and successfully tested as scaffolds for tissue regeneration. From previous work on the use of this kind of nanostructures, it is known that features like morphology, rigidity, epitope spacing and periodicity are important factors that dramatically affect cell adhesion and signaling. Within this context, the reported results demonstrate that bile salt-based peptide surfactants are promising building blocks in the preparation of non-trivial RGD-decorated nanoaggregates with well-defined morphologies and epitope distributions.
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Affiliation(s)
- Leana Travaglini
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
| | - Cesare Giordano
- Institute of Molecular Biology and Pathology, CNR, P.le A. Moro 5, 00185 Roma, Italy
| | - Andrea D'Annibale
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
| | - Marta Gubitosi
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
| | | | - Karin Schillén
- Division of Physical Chemistry, Department of Chemistry, Center for Chemistry and Chemical Engineering, Lund University, SE-221 00 Lund, Sweden
| | - Azzurra Stefanucci
- Department of Pharmacy, University of Chieti-Pescara "G. d'Annunzio", Via dei Vestini 31, 66100 Chieti, Italy
| | - Adriano Mollica
- Department of Pharmacy, University of Chieti-Pescara "G. d'Annunzio", Via dei Vestini 31, 66100 Chieti, Italy
| | - Nicolae Viorel Pavel
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
| | - Luciano Galantini
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
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Zhang M, Fives C, Waldron KC, Zhu XX. Self-Assembly of a Bile Acid Dimer in Aqueous Solutions: From Nanofibers to Nematic Hydrogels. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:1084-1089. [PMID: 28048933 DOI: 10.1021/acs.langmuir.6b04033] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A mixture of a cholic acid dimer with a secondary amine group and formic acid at a molar ratio of 1/1 is regarded as an organic salt, and it self-assembles in aqueous solutions to form monodisperse nanofibers. The nanofibers are separated at low concentrations of the mixture but entangle with each other at high concentrations to form well-dispersed and randomly arranged 3D fibrous networks. Above the minimum gelation concentration of the dimer, the fibrous network is strong enough to gelate the aqueous solutions to form a hydrogel. Hydrogels obtained from the dimer salt at a lower concentration are isotropic and show extinction between crossed polarizers in the polarizing microscope, whereas they become anisotropic (i.e., nematic hydrogels) upon increasing the dimer salt concentration or under physical stirring. The parallel arrangement of nanofibers from randomly directed fibrous networks may be responsible for the formation of such nematic hydrogels.
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Affiliation(s)
- Meng Zhang
- Département de Chimie, Université de Montréal , C.P. 6128, Succ. Centre-ville, Montreal, Québec H3C 3J7, Canada
| | - Colin Fives
- Département de Chimie, Université de Montréal , C.P. 6128, Succ. Centre-ville, Montreal, Québec H3C 3J7, Canada
| | - Karen C Waldron
- Département de Chimie, Université de Montréal , C.P. 6128, Succ. Centre-ville, Montreal, Québec H3C 3J7, Canada
| | - X X Zhu
- Département de Chimie, Université de Montréal , C.P. 6128, Succ. Centre-ville, Montreal, Québec H3C 3J7, Canada
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11
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Zhao B, Deng J, Deng J. Optically Active Helical Polyacetylene Self-Assembled into Chiral Micelles Used As Nanoreactor for Helix-Sense-Selective Polymerization. ACS Macro Lett 2017; 6:6-10. [PMID: 35632871 DOI: 10.1021/acsmacrolett.6b00808] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Chiral micelles have been drawing ever-increasing attention because of their potentials in mimicking the unique stereochemical effects of enzymes. This article reports on the first success in preparing chiral micelles through self-assembly of helical polyacetylene bearing cholic acid pendants. The micelles were further used as chiral nanoreactor, in which achiral acetylenic monomer smoothly underwent helix-sense-selective polymerization (HSSP). The HSSPs directly established optically active core/shell nanoparticles whose shell and core both were constructed by helical polymers. The shells (or micelles) provided a protective effect for the preferably induced one-handed helical polymer chains in the cores. The present work provides insights into the self-assembly of chiral helical polymers, and also provides a powerful strategy for constructing novel chiral polymer nanoarchitectures.
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Affiliation(s)
- Biao Zhao
- State Key Laboratory of Chemical Resource Engineering and ‡College of Materials
Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jinrui Deng
- State Key Laboratory of Chemical Resource Engineering and ‡College of Materials
Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jianping Deng
- State Key Laboratory of Chemical Resource Engineering and ‡College of Materials
Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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12
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Gubitosi M, D'Annibale A, Schillén K, Olsson U, Pavel NV, Galantini L. On the stability of lithocholate derivative supramolecular tubules. RSC Adv 2017. [DOI: 10.1039/c6ra26092f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Solubility and calorimetry data provide the description of a phase map for metastable supramolecular nanotubes of biological origin.
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Affiliation(s)
- M. Gubitosi
- Department of Chemistry
- “Sapienza” University of Rome
- 00185 Rome
- Italy
- Division of Physical Chemistry
| | - A. D'Annibale
- Department of Chemistry
- “Sapienza” University of Rome
- 00185 Rome
- Italy
| | - K. Schillén
- Division of Physical Chemistry
- Department of Chemistry
- Lund University
- SE-221 00 Lund
- Sweden
| | - U. Olsson
- Division of Physical Chemistry
- Department of Chemistry
- Lund University
- SE-221 00 Lund
- Sweden
| | - N. V. Pavel
- Department of Chemistry
- “Sapienza” University of Rome
- 00185 Rome
- Italy
| | - L. Galantini
- Department of Chemistry
- “Sapienza” University of Rome
- 00185 Rome
- Italy
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13
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Myllymäki TTT, Nonappa, Yang H, Liljeström V, Kostiainen MA, Malho JM, Zhu XX, Ikkala O. Hydrogen bonding asymmetric star-shape derivative of bile acid leads to supramolecular fibrillar aggregates that wrap into micrometer spheres. SOFT MATTER 2016; 12:7159-65. [PMID: 27491728 PMCID: PMC5322467 DOI: 10.1039/c6sm01329e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 07/27/2016] [Indexed: 06/06/2023]
Abstract
We report that star-shaped molecules with cholic acid cores asymmetrically grafted by low molecular weight polymers with hydrogen bonding end-groups undergo aggregation to nanofibers, which subsequently wrap into micrometer spherical aggregates with low density cores. Therein the facially amphiphilic cholic acid (CA) is functionalized by four flexible allyl glycidyl ether (AGE) side chains, which are terminated with hydrogen bonding 2-ureido-4[1H]pyrimidinone (UPy) end-groups as connected by hexyl spacers, denoted as CA(AGE6-C6H12-UPy)4. This wedge-shaped molecule is expected to allow the formation of a rich variety of solvent-dependent structures due to the complex interplay of interactions, enabled by its polar/nonpolar surface-active structure, the hydrophobicity of the CA in aqueous medium, and the possibility to control hydrogen bonding between UPy molecules by solvent selection. In DMSO, the surfactant-like CA(AGE6-C6H12-UPy)4 self-assembles into nanometer scale micelles, as expected due to its nonpolar CA apexes, solubilized AGE6-C6H12-UPy chains, and suppressed mutual hydrogen bonds between the UPys. Dialysis in water leads to nanofibers with lateral dimensions of 20-50 nm. This is explained by promoted aggregation as the hydrogen bonds between UPy molecules start to become activated, the reduced solvent dispersibility of the AGE-chains, and the hydrophobicity of CA. Finally, in pure water the nanofibers wrap into micrometer spheres having low density cores. In this case, strong complementary hydrogen bonds between UPy molecules of different molecules can form, thus promoting lateral interactions between the nanofibers, as allowed by the hydrophobic hexyl spacers. The wrapping is illustrated by transmission electron microscopy tomographic 3D reconstructions. More generally, we foresee hierarchically structured matter bridging the length scales from molecular to micrometer scale by sequentially triggering supramolecular interactions.
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Affiliation(s)
- Teemu T. T. Myllymäki
- Department of Applied Physics , Aalto University , P.O. Box 15100 , FI-00076 AALTO , Finland . ;
| | - Nonappa
- Department of Applied Physics , Aalto University , P.O. Box 15100 , FI-00076 AALTO , Finland . ;
| | - Hongjun Yang
- Department of Chemistry , Université de Montréal , C.P. 6128 , Succursale Centre-ville , Montréal , QC H3C 3J7 , Canada
| | - Ville Liljeström
- Department of Applied Physics , Aalto University , P.O. Box 15100 , FI-00076 AALTO , Finland . ;
| | - Mauri A. Kostiainen
- Department of Biotechnology and Chemical Technology , Aalto University , P.O. Box 16100 , FI-00076 AALTO , Finland
| | - Jani-Markus Malho
- Department of Applied Physics , Aalto University , P.O. Box 15100 , FI-00076 AALTO , Finland . ;
| | - X. X. Zhu
- Department of Chemistry , Université de Montréal , C.P. 6128 , Succursale Centre-ville , Montréal , QC H3C 3J7 , Canada
| | - Olli Ikkala
- Department of Applied Physics , Aalto University , P.O. Box 15100 , FI-00076 AALTO , Finland . ;
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Zhang M, Strandman S, Waldron KC, Zhu XX. Supramolecular hydrogelation with bile acid derivatives: structures, properties and applications. J Mater Chem B 2016; 4:7506-7520. [DOI: 10.1039/c6tb02270g] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bile acid derivatives can form molecular hydrogels that may be useful for drug delivery, tissue engineering and nanotemplating.
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Affiliation(s)
- Meng Zhang
- Département de Chimie
- Université de Montréal
- Montreal
- Canada
| | - Satu Strandman
- Département de Chimie
- Université de Montréal
- Montreal
- Canada
| | | | - X. X. Zhu
- Département de Chimie
- Université de Montréal
- Montreal
- Canada
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15
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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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16
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A tryptophan-substituted cholic acid: Expanding the family of labelled biomolecules. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.03.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Galantini L, di Gregorio MC, Gubitosi M, Travaglini L, Tato JV, Jover A, Meijide F, Soto Tellini VH, Pavel NV. Bile salts and derivatives: Rigid unconventional amphiphiles as dispersants, carriers and superstructure building blocks. Curr Opin Colloid Interface Sci 2015. [DOI: 10.1016/j.cocis.2015.08.004] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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18
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Travaglini L, Gubitosi M, di Gregorio MC, Pavel NV, D'Annibale A, Giustini M, Soto Tellini VH, Vázquez Tato J, Obiols-Rabasa M, Bayati S, Galantini L. On the self-assembly of a tryptophan labeled deoxycholic acid. Phys Chem Chem Phys 2015; 16:19492-504. [PMID: 25103526 DOI: 10.1039/c4cp02371d] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Self-assembly of peptides and bile acids has been widely investigated because of their biological role and their potential as a tool for the preparation of nanostructured biomaterials. We herein report both the synthesis and the self-association behavior of a compound that combines the aggregation properties of bile acid- and amino acid-based molecules. The derivative has been prepared by introducing a L-tryptophan residue into the C-3 position of the deoxycholic acid skeleton and resulted in an amphoteric fluorescent labeled bile acid that shows a pH-dependent self-assembly. Under alkaline conditions it assembles into 28 nm diameter tubules, thus showing a completely different behavior compared to the precursor bile acid, which forms micelles under similar conditions. Upon heating the tubules break and turn into micelles, leading to an increase in the exposure to water of the tryptophan residue. On the other hand, in acidic solutions it aggregates into elongated micelles that further self-assemble forming a gel network, when an electrolyte is added.
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Affiliation(s)
- Leana Travaglini
- Department of Chemistry, "Sapienza" University of Rome, P. le A. Moro 5, 00185 Rome, Italy.
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Gubitosi M, Travaglini L, di Gregorio MC, Pavel NV, Vázquez Tato J, Sennato S, Olsson U, Schillén K, Galantini L. Tailoring Supramolecular Nanotubes by Bile Salt Based Surfactant Mixtures. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201500445] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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20
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Gubitosi M, Travaglini L, di Gregorio MC, Pavel NV, Vázquez Tato J, Sennato S, Olsson U, Schillén K, Galantini L. Tailoring supramolecular nanotubes by bile salt based surfactant mixtures. Angew Chem Int Ed Engl 2015; 54:7018-21. [PMID: 25925079 DOI: 10.1002/anie.201500445] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 02/26/2015] [Indexed: 12/27/2022]
Abstract
An approach for tailoring self-assembled tubular structures is described. By controlling the relative composition of a two-component surfactant mixture comprising the natural bile salt lithocholate and its bolamphiphilic derivative, it was possible to finely tune the nanotube cross-section of the mixed tubular aggregates that self-associated spontaneously in aqueous solution at pH 12. The diameter was found to vary up to 50% when the stoichiometric ratio of the two bile salts was changed. The tuning of supramolecular nanochannels with such remarkable precision is of significant interest for technological applications of these materials.
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Affiliation(s)
- Marta Gubitosi
- Dipartimento di Chimica, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Rome (Italy) luciano
| | - Leana Travaglini
- Dipartimento di Chimica, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Rome (Italy) luciano
| | - Maria Chiara di Gregorio
- Dipartimento di Chimica, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Rome (Italy) luciano
| | - Nicolae V Pavel
- Dipartimento di Chimica, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Rome (Italy) luciano
| | - José Vázquez Tato
- Facultad de Ciencias, Universidad de Santiago de Compostela, Avda. Alfonso X El Sabio s/n, 27002 Lugo (Spain)
| | - Simona Sennato
- Istitute of Complex Systems (ISC)-CNR, UOS Sapienza, P.le Aldo Moro 2, 00185 Rome (Italy)
| | - Ulf Olsson
- Division of Physical Chemistry, Department of Chemistry, Center for Chemistry and Chemical Engineering, Lund University, 22100 Lund (Sweden)
| | - Karin Schillén
- Division of Physical Chemistry, Department of Chemistry, Center for Chemistry and Chemical Engineering, Lund University, 22100 Lund (Sweden)
| | - Luciano Galantini
- Dipartimento di Chimica, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Rome (Italy) luciano..
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21
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The effect of hydroxyl moieties and their oxosubstitution on bile acid association studied in floating monolayers. ScientificWorldJournal 2015; 2014:152972. [PMID: 25685831 PMCID: PMC4317589 DOI: 10.1155/2014/152972] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 12/04/2014] [Accepted: 12/09/2014] [Indexed: 11/23/2022] Open
Abstract
Bile salt aggregates are promising candidates for drug delivery vehicles due to their unique fat-solubilizing ability. However, the toxicity of bile salts increases with improving fat-solubilizing capability and so an optimal combination of efficient solubilization and low toxicity is necessary. To improve hydrophilicity (and decrease toxicity), we substituted hydroxyl groups of several natural bile acid (BA) molecules for oxogroups and studied their intrinsic molecular association behavior. Here we present the comparative Langmuir trough study of the two-dimensional (2D) association behavior of eight natural BAs and four oxoderivatives (traditionally called keto-derivatives) floated on an aqueous subphase. The series of BAs and derivatives showed systematic changes in the shape of the compression isotherms. Two types of association could be distinguished: the first transition was assigned to the formation of dimers through H-bonding and the second to the hydrophobic aggregation of BA dimers. Hydrophobic association of BA molecules in the films is linked to the ability of forming H-bonded dimers. Both H-bond formation and hydrophobic association weakened with increasing number of hydroxyl groups, decreasing distance between hydroxyl groups, and increasing oxosubstitution. The results also show that the Langmuir trough method is extremely useful in selecting appropriate BA molecules to design drug delivery systems.
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22
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di Gregorio MC, Varenik M, Gubitosi M, Travaglini L, Pavel NV, Jover A, Meijide F, Regev O, Galantini L. Multi stimuli response of a single surfactant presenting a rich self-assembly behavior. RSC Adv 2015. [DOI: 10.1039/c5ra01394a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
A bile salt derived surfactant shows an unusually rich multi responsive self-assembly, involving interesting opening/closure mechanisms of supramolecular tubules and drastic spectroscopic variations, potentially exploitable in sensing.
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Affiliation(s)
| | - M. Varenik
- Department of Chemical Engineering
- Ben-Gurion University of the Negev
- Beer-Sheva 84105
- Israel
| | - M. Gubitosi
- Dipartimento di Chimica
- Università di Roma “Sapienza”
- 00185 Roma
- Italy
| | - L. Travaglini
- Dipartimento di Chimica
- Università di Roma “Sapienza”
- 00185 Roma
- Italy
| | - N. V. Pavel
- Dipartimento di Chimica
- Università di Roma “Sapienza”
- 00185 Roma
- Italy
| | - A. Jover
- Departamento de Química Física
- Facultad de Ciencias
- Universidad de Santiago de Compostela
- 27002 Lugo
- Spain
| | - F. Meijide
- Departamento de Química Física
- Facultad de Ciencias
- Universidad de Santiago de Compostela
- 27002 Lugo
- Spain
| | - O. Regev
- Department of Chemical Engineering
- Ben-Gurion University of the Negev
- Beer-Sheva 84105
- Israel
| | - L. Galantini
- Dipartimento di Chimica
- Università di Roma “Sapienza”
- 00185 Roma
- Italy
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23
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Hu MX, Li JN, Zhang SL, Li L, Xu ZK. Hydrophilic modification of PVDF microfiltration membranes by adsorption of facial amphiphile cholic acid. Colloids Surf B Biointerfaces 2014; 123:809-13. [DOI: 10.1016/j.colsurfb.2014.10.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 10/09/2014] [Accepted: 10/11/2014] [Indexed: 12/24/2022]
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24
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Gubitosi M, Travaglini L, D'Annibale A, Pavel NV, Vázquez Tato J, Obiols-Rabasa M, Sennato S, Olsson U, Schillén K, Galantini L. Sugar-bile acid-based bolaamphiphiles: from scrolls to monodisperse single-walled tubules. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:6358-6366. [PMID: 24827467 DOI: 10.1021/la500908r] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The introduction of a mannose residue on carbon 3 of lithocholic acid gives rise to an asymmetric and rigid bolaamphiphilic molecule, which self-assembles in water to form elongated tubular aggregates with an outer diameter of about 20 nm. These tubular structures display a temporal evolution, where the average tube diameter decreases with time, which can be followed by time-resolved small-angle X-ray scattering experiments. Cryogenic transmission electron microscopy images collected as a function of time show that at short times after preparation tubular scrolls are formed via the rolling of layers, after which a complex transformation of the scrolls into single-walled tubules takes place. At long time scales, a further evolution occurs where the tubules both elongate and become narrower. The observed self-assembly confirms the tendency of bile acids and their derivatives to form supramolecular aggregates with an ordered packing of the constituent molecules. It also demonstrates that scrolls can be formed as intermediate structures in the self-assembly process of monodisperse single-walled tubules.
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Affiliation(s)
- Marta Gubitosi
- Division of Physical Chemistry, Department of Chemistry, Lund University , SE-221 00 Lund, Sweden
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25
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Gubitosi M, Trillo JV, Alfaro Vargas A, Pavel NV, Gazzoli D, Sennato S, Jover A, Meijide F, Galantini L. Characterization of carbon nanotube dispersions in solutions of bile salts and derivatives containing aromatic substituents. J Phys Chem B 2014; 118:1012-21. [PMID: 24417378 DOI: 10.1021/jp407145t] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Bile salts (BS) are known to solubilize high weight fractions of carbon nanotubes (CNTs) in aqueous solutions. Here, the efficiency of derivatives of bile salts (BSDs) containing aromatic substituents in dispersing single-wall CNTs (SWCNTs) has been investigated in order to check whether the presence of aromatic residues, because of their affinity toward carbon nanotube surfaces, determines improvements of the BS dispersion efficiency (DE). Electric arc and CoMoCAT SWCNTs were analyzed. The results, reported for the two surfactant concentrations of 0.06 and 1.0 wt %, show that the DE of BSDs depends on the position, orientation, and structure of the introduced aromatic residues. In the case of the CoMoCAT SWCNTs, at low surfactant concentration a DE improvement is observed in BSDs where the aromatic residue is linked either to carbon 3, located on the rigid four-ring system, or to the side chain. For the latter, this improvement is also enhanced in double-charge derivatives and kept at high surfactant concentration. It was also observed that at low concentrations of surfactant, the DE values of BSs and BSDs are usually larger than those of the more conventional detergent sodium dodecylsulfate.
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Affiliation(s)
- Marta Gubitosi
- Dipartimento di Chimica, "Sapienza" Università di Roma , P. le A. Moro 5, 00185 Roma, Italy
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26
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Song S, Wang H, Song A, Hao J. Superhydrogels of Nanotubes Capable of Capturing Heavy-Metal Ions. Chem Asian J 2013; 9:245-52. [DOI: 10.1002/asia.201300892] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2013] [Revised: 09/08/2013] [Indexed: 11/10/2022]
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27
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di Gregorio MC, Pavel NV, Miragaya J, Jover A, Meijide F, Vázquez Tato J, Tellini VHS, Galantini L. Catanionic gels based on cholic acid derivatives. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:12342-12351. [PMID: 24063307 DOI: 10.1021/la402602d] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In this paper, the preparation and characterization of an anionic and a cationic surfactant obtained by chemical modifications of a natural bile acid (cholic acid) are reported. The bile acid was modified by introducing a diamine or a dicarboxylic aromatic residue on the lateral chain. The pure cationic surfactant self-assembles in a network of fibers with a cross-section gyration radius of about 15.1 Å, providing hydrogels with a pH-dependent compactness. On the other hand, the anionic molecule gives rise to prolate ellipsoid micelles. Homogeneous catanionic mixtures have also been obtained, with molar fraction of each surfactant ranging from 0.125 to 0.875. At total surfactant concentration of 0.05% (w/v), the mixtures form gels of fibrils partially arranged in secondary twisted superstructures. Comparison of this concentration with the minimum gelation concentration of the pure cationic derivative (0.16% w/v) suggests that, in the mixtures, the presence of the electrostatic component in self-assembly of the molecules allows the formation of gels starting from more dilute samples. In view of these achievements, this work suggests that catanionic mixtures can be exploited to enhance the efficiency of gelators.
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Affiliation(s)
- M Chiara di Gregorio
- Dipartimento di Chimica, Università di Roma "La Sapienza" , P. le A. Moro 5, 00185 Roma, Italy
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28
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Travaglini L, D'Annibale A, di Gregorio MC, Schillén K, Olsson U, Sennato S, Pavel NV, Galantini L. Between peptides and bile acids: self-assembly of phenylalanine substituted cholic acids. J Phys Chem B 2013; 117:9248-57. [PMID: 23844889 DOI: 10.1021/jp405342v] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Biocompatible molecules that undergo self-assembly are of high importance in biological and medical applications of nanoscience. Peptides and bile acids are among the most investigated due to their ability to self-organize into many different, often stimuli-sensitive, supramolecular structures. With the aim of preparing molecules mixing the aggregation properties of bile acid and amino acid-based molecules, we report on the synthesis and self-association behavior of two diastereomers obtained by substituting a hydroxyl group of cholic acid with a l-phenylalanine residue. The obtained molecules are amphoteric, and we demonstrate that they show a pH-dependent self-assembly. Both molecules aggregate in globular micelles at high pH, whereas they form tubular superstructures under acid conditions. Unusual narrow nanotubes with outer and inner cross-section diameters of about 6 and 3 nm are formed by the derivatives. The diasteroisomer with α orientation of the substituent forms in addition a wider tubule (17 nm cross-section diameter). The ability to pack in supramolecular tubules is explained in terms of a wedge-shaped bola-form structure of the derivatives. Parallel or antiparallel face-to-face dimers are hypothesized as fundamental building blocks for the formation of the narrow and wide nanotubes, respectively.
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Affiliation(s)
- Leana Travaglini
- Department of Chemistry, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
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29
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di Gregorio MC, Pavel NV, Jover A, Meijide F, Vázquez Tato J, Soto Tellini VH, Alfaro Vargas A, Regev O, Kasavi Y, Schillén K, Galantini L. pH sensitive tubules of a bile acid derivative: a tubule opening by release of wall leaves. Phys Chem Chem Phys 2013; 15:7560-6. [PMID: 23588347 DOI: 10.1039/c3cp00121k] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Tubules formed by self-assembly of organic molecules have vast potential for nanotechnology applications, and the introduction of sensitivity to stimuli into self-assembly tubules represents a particularly attractive feature. Here we report the preparation and characterization of a molecule obtained by chemical modification of a natural bile acid, a biological surfactant, that self-assembles in pH sensitive tubules in aqueous solutions. The tubules, which are rigid, single-walled and with a diameter of 60 nm, form at pH 8-9 and open up when the pH is increased. The transition is reversible, it occurs in the pH range of 9-10 with an opening mechanism that is remarkably different from those so far proposed in the literature. It involves a release of wall layers similar to leaves, and is determined by a drastic pH-triggered change in the molecular arrangement, which in turn induces a radical modification of the wall curvature. The description of the morphological transformation is provided by means of cryogenic transmission electron microscopy and represents, to our knowledge, the first detailed visualization of pH stimulated tubule opening. UV and circular dichroism spectroscopies are used to investigate the evolution at the molecular level.
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Affiliation(s)
- M Chiara di Gregorio
- Dipartimento di Chimica, Università di Roma La Sapienza, P. le A. Moro 5, 00185 Roma, Italy
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30
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Margulis-Goshen K, di Gregorio MC, Pavel NV, Abezgauz L, Danino D, Vázquez Tato J, Soto Tellini VH, Magdassi S, Galantini L. Drug-loaded nanoparticles and supramolecular nanotubes formed from a volatile microemulsion with bile salt derivatives. Phys Chem Chem Phys 2013; 15:6016-24. [PMID: 23493872 DOI: 10.1039/c3cp50258a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The main objective of this study was to form nanoparticles of a model hydrophobic drug, celecoxib, from a volatile microemulsion stabilized by a bile salt derivative. Nanoparticles were obtained by conversion of the microemulsion nanodroplets with the dissolved drug into solid nanometric particles. The use of bile salt derivatives as the surfactants for the formation of a microemulsion enabled significantly higher loading of the drug in both the microemulsion and nanoparticles, compared with the native bile salt. In addition, superior stability of the particles was achieved with the bile salt derivatives, and drug crystallization was inhibited. Interestingly, differences in particle stability and crystallization inhibition were observed between two bile salt derivatives differing only by one hydroxyl group on the bile salt backbone, indicating the delicate balance of interactions in the system. For one of the derivatives, upon dispersion of the nanoparticles in water, they spontaneously arranged into well-defined elongated nanometric tubules as detected and attested by cryo-TEM. It was found that the drug present in nanoparticles induces formation of the nanotubes.
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Affiliation(s)
- Katrin Margulis-Goshen
- The Hebrew University of Jerusalem, Edmond J. Safra campus, Givat Ram, Jerusalem, 91904, Israel
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