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Mondal P, Roy S, Dey J, Dasgupta SB. Impact of Linker Groups on Self-Assembly, Gene Transfection, Antibacterial Activity, and In Vitro Cytotoxicity of Cationic Bolaamphiphiles. ACS APPLIED BIO MATERIALS 2024; 7:1703-1712. [PMID: 38433388 DOI: 10.1021/acsabm.3c01142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
Cationic bolaamphiphiles have gained significant attention in various research fields, including materials science, drug delivery, and gene therapy, due to their unique properties and potential applications. The objective of the current research is to develop more effective cationic bolaamphiphiles. Thus, we have designed and synthesized two cationic bolaamphiphiles (-(CH2)12(2,3-dihydroxy-N,N-dimethyl-N-(3-ureidopropyl)propan-1-aminium chloride))2 (C12(DDUPPAC)2)) and (-(CH2)12(N-(3-(carbamoyloxy)propyl)-2,3-dihydroxy-N,N-dimethylpropan-1-aminium chloride)2 (C12(CPDDPAC)2) containing urea and urethane linkages, respectively. We have investigated their self-assembly properties in water using several techniques, including surface tension, electrical conductivity, fluorescence probe, calorimetry, dynamic light scattering, and atomic force microscopy. Their biological applications, e.g., in vitro gene transfection, antibacterial activity, and cytotoxicity, were studied. Both bolaamphiphiles were observed to produce aggregates larger than spherical micelles above a relatively low critical aggregation concentration (cac). The calorimetric experiments suggested the thermodynamically favorable spontaneous aggregation of both bolaforms in water. The results of interaction studies led to the conclusion that C12(CPDDPAC)2 binds DNA with a greater affinity than C12(DDUPPAC)2. Also, C12(CPDDPAC)2 is found to act as a more efficient gene transfection vector than C12(DDUPPAC)2 in 264.7 cell lines. The in vitro cytotoxicity assay using MTT, however, revealed that neither of the bolaamphiphiles was toxic, even at higher quantities. Additionally, both bolaforms show beneficial antibacterial activity.
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Affiliation(s)
- Pabitra Mondal
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Sadhana Roy
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Joykrishna Dey
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Somdeb Bose Dasgupta
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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2
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Lamch Ł, Szczęsna W, Balicki SJ, Bartman M, Szyk-Warszyńska L, Warszyński P, Wilk KA. Multiheaded Cationic Surfactants with Dedicated Functionalities: Design, Synthetic Strategies, Self-Assembly and Performance. Molecules 2023; 28:5806. [PMID: 37570776 PMCID: PMC10421305 DOI: 10.3390/molecules28155806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/25/2023] [Accepted: 07/30/2023] [Indexed: 08/13/2023] Open
Abstract
Contemporary research concerning surfactant science and technology comprises a variety of requirements relating to the design of surfactant structures with widely varying architectures to achieve physicochemical properties and dedicated functionality. Such approaches are necessary to make them applicable to modern technologies, such as nanostructure engineering, surface structurization or fine chemicals, e.g., magnetic surfactants, biocidal agents, capping and stabilizing reagents or reactive agents at interfaces. Even slight modifications of a surfactant's molecular structure with respect to the conventional single-head-single-tail design allow for various custom-designed products. Among them, multicharge structures are the most intriguing. Their preparation requires specific synthetic routes that enable both main amphiphilic compound synthesis using appropriate step-by-step reaction strategies or coupling approaches as well as further derivatization toward specific features such as magnetic properties. Some of the most challenging aspects of multicharge cationic surfactants relate to their use at different interfaces for stable nanostructures formation, applying capping effects or complexation with polyelectrolytes. Multiheaded cationic surfactants exhibit strong antimicrobial and antiviral activity, allowing them to be implemented in various biomedical fields, especially biofilm prevention and eradication. Therefore, recent advances in synthetic strategies for multiheaded cationic surfactants, their self-aggregation and performance are scrutinized in this up-to-date review, emphasizing their applications in different fields such as building blocks in nanostructure engineering and their use as fine chemicals.
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Affiliation(s)
- Łukasz Lamch
- Department of Engineering and Technology of Chemical Processes, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland; (Ł.L.); (W.S.); (S.J.B.); (M.B.)
| | - Weronika Szczęsna
- Department of Engineering and Technology of Chemical Processes, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland; (Ł.L.); (W.S.); (S.J.B.); (M.B.)
| | - Sebastian J. Balicki
- Department of Engineering and Technology of Chemical Processes, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland; (Ł.L.); (W.S.); (S.J.B.); (M.B.)
| | - Marcin Bartman
- Department of Engineering and Technology of Chemical Processes, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland; (Ł.L.); (W.S.); (S.J.B.); (M.B.)
| | - Liliana Szyk-Warszyńska
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Kraków, Poland; (L.S.-W.); (P.W.)
| | - Piotr Warszyński
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Kraków, Poland; (L.S.-W.); (P.W.)
| | - Kazimiera A. Wilk
- Department of Engineering and Technology of Chemical Processes, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland; (Ł.L.); (W.S.); (S.J.B.); (M.B.)
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3
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Mondal P, Dey J, Roy S, Bose Dasgupta S. Self-Assembly, In Vitro Gene Transfection, and Antimicrobial Activity of Biodegradable Cationic Bolaamphiphiles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023. [PMID: 37454394 DOI: 10.1021/acs.langmuir.3c00885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
Bolaamphiphiles or bolaforms have drawn particular interest in drug and gene delivery, and studies of bolaforms have been growing continuously. Bolaforms, due to their unique structure, exhibit specific self-assembly behavior in water. The present work aims to develop biodegradable cationic bolaforms with a better gene transfection ability. In this work, a novel cationic bolaform (Bola-1) with head groups bearing hydroxyl (OH) functionality was designed and synthesized to investigate self-assembly and gene transfection efficiency. The self-assembly behavior of Bola-1 in water was compared with that of the hydrochloride salt (Bola-2) of its precursor molecule to investigate the effect of the -OH functionality on their solution properties. Several techniques, including surface tension, electrical conductivity, fluorescence probe, calorimetry, dynamic light scattering, and atomic force microscopy, were employed for the physicochemical characterization of Bola-1 and Bola-2. Despite the presence of polar urea groups in the spacer chain, both bolaforms were found to form spherical or elongated micelles above a relatively low critical aggregation concentration (CAC). The presence of the OH group was found to significantly affect the CAC value. The results of calorimetric measurements suggested a thermodynamically favorable aggregate formation in salt-free water. Despite stronger binding efficiency with calf thymus DNA, in vitro gene transfection studies performed using adherent cell Hek 293 suggested that both Bola-1 and Bola-2 have gene transfection efficiency comparable to that of turbofectamine standard. Both bolaforms were found to exhibit significant in vitro cytotoxicity at higher concentrations. Also, the bolaforms showed beneficial antibacterial activity at higher concentrations.
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Affiliation(s)
- Pabitra Mondal
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Joykrishna Dey
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Sadhana Roy
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Somdeb Bose Dasgupta
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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4
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Zhu Q, Tree DR. Simulations of morphology control of self‐assembled amphiphilic surfactants. JOURNAL OF POLYMER SCIENCE 2023. [DOI: 10.1002/pol.20220771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
Affiliation(s)
- Qinyu Zhu
- Department of Chemical Engineering Brigham Young University Provo Utah USA
| | - Douglas R. Tree
- Department of Chemical Engineering Brigham Young University Provo Utah USA
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5
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Vemuri GN, Hughes JR, Iovine PM. Synthesis and characterization of terpene-derived cationic bolaamphiphiles. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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6
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Saci F, Roelants SLKW, Soetaert W, Baccile N, Davidson P. Lyotropic Liquid-Crystalline Phases of Sophorolipid Biosurfactants. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:8564-8574. [PMID: 35793459 DOI: 10.1021/acs.langmuir.2c00807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Biological amphiphiles derived from natural resources are presently being investigated in the hope that they will someday replace current synthetic surfactants, which are known pollutants of soils and water resources. Sophorolipids constitute one of the main classes of glycosylated biosurfactants that have attracted interest because they are synthesized by non-pathogenic yeasts from glucose and vegetable oils at high titers. In this work, the self-assembly properties of several sophorolipids in water at high concentrations (20-80 wt %), a range so far mostly uncharted, have been investigated by polarized-light microscopy and X-ray scattering. Some of these compounds were found to show lyotropic liquid-crystalline behavior as they display lamellar or hexagonal columnar mesophases. X-ray scattering data shows that the structure of the lamellar phase is almost fully interdigitated, which is likely due to the packing difference between the bulky hydrophilic tails and the more compact aliphatic chains. A tentative representation of the molecular organization of the columnar phase is also given. Moreover, some of these compounds display thermotropic liquid-crystalline behavior, either pure or in aqueous mixtures. In addition, small domains of the lamellar phase can easily be aligned by applying onto them a moderate a.c. electric field, which is a rather unusual feature for lyotropic liquid crystals. Altogether, our work explored the self-assembly liquid-crystalline behavior of sophorolipids at high concentration, which could shed light on the conditions of their potential industrial applications as well as on their biological function.
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Affiliation(s)
- Fella Saci
- Centre National de la Recherche Scientifique, Laboratoire de Chimie de la Matière Condensée de Paris, LCMCP, Sorbonne Université, F-75005 Paris, France
| | - Sophie L K W Roelants
- Centre for Industrial Biotechnology and Biocatalysis (InBio.be), Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
- Bio Base Europe Pilot Plant, Rodenhuizenkaai 1, 9042 Ghent, Belgium
| | - Wim Soetaert
- Centre for Industrial Biotechnology and Biocatalysis (InBio.be), Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
- Bio Base Europe Pilot Plant, Rodenhuizenkaai 1, 9042 Ghent, Belgium
| | - Niki Baccile
- Centre National de la Recherche Scientifique, Laboratoire de Chimie de la Matière Condensée de Paris, LCMCP, Sorbonne Université, F-75005 Paris, France
| | - Patrick Davidson
- Laboratoire de Physique des Solides, Université Paris-Saclay, Centre National de la Recherche Scientifique, 91405 Orsay, France
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7
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Baccile N, Poirier A, Seyrig C, Le Griel P, Perez J, Hermida-Merino D, Pernot P, Roelants SL, Soetaert W. Chameleonic Amphiphile: the Unique Multiple Self-Assembly Properties of a Natural Glycolipid in Excess of Water. J Colloid Interface Sci 2022; 630:404-415. [DOI: 10.1016/j.jcis.2022.07.130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 07/11/2022] [Accepted: 07/20/2022] [Indexed: 11/30/2022]
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8
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Warszyński P, Szyk-Warszyńska L, Wilk KA, Lamch Ł. Adsorption of cationic multicharged surfactants at liquid/gas interface. Curr Opin Colloid Interface Sci 2022. [DOI: 10.1016/j.cocis.2022.101577] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Arabadzhieva D, Gyurova AY, Minkov I, Chinarev A, Mileva E. Fine-tuning of bulk and interfacial characteristics of two-antennary oligoglycines in aqueous solutions. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Scholte A, Hübner C, Ströhl D, Scheufler O, Czich S, Börke JM, Hildebrand G, Liefeith K. First Isolation and Structure Elucidation of GDNT-β-Glu - Tetraether Lipid Fragment from Archaeal Sulfolobus Strains. ChemistryOpen 2021; 10:889-895. [PMID: 34468091 PMCID: PMC8409090 DOI: 10.1002/open.202100154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 08/10/2021] [Indexed: 11/09/2022] Open
Abstract
Due to their special chemical structure, tetraether lipids (TEL) represent essential elements of archaeal membranes, providing these organisms with extraordinary properties. Here we describe the characterization of a newly isolated structural element of the main lipids. The TEL fragment GDNT-β-Glu was isolated from Sulfolobus metallicus and characterized in terms of its chemical structure by NMR- and MS-investigations. The obtained data are dissimilar to analogically derived established structures - in essence, the binding relationships in the polar head group are re-determined and verified. With this work, we provide an important contribution to the structure elucidation of intact TEL also contained in other Sulfolobus strains such as Solfulobus acidocaldarius and Sulfolobus solfataricus.
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Affiliation(s)
- Alexander Scholte
- Institute for Bioprocessing and Analytical Measurement TechniquesRosenhof37308Heilbad HeiligenstadtGermany
| | - Christoph Hübner
- Institute for Bioprocessing and Analytical Measurement TechniquesRosenhof37308Heilbad HeiligenstadtGermany
| | - Dieter Ströhl
- Department of ChemistryMartin Luther University Halle-WittenbergKurt-Mothes-Str. 206120HalleGermany
| | | | - Steffen Czich
- Institute for Bioprocessing and Analytical Measurement TechniquesRosenhof37308Heilbad HeiligenstadtGermany
| | - Julia M. Börke
- Institute for Bioprocessing and Analytical Measurement TechniquesRosenhof37308Heilbad HeiligenstadtGermany
| | - Gerhard Hildebrand
- Institute for Bioprocessing and Analytical Measurement TechniquesRosenhof37308Heilbad HeiligenstadtGermany
| | - Klaus Liefeith
- Institute for Bioprocessing and Analytical Measurement TechniquesRosenhof37308Heilbad HeiligenstadtGermany
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11
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Lee H, Kim H, Lee SY. Self-Assembling Peptidic Bolaamphiphiles for Biomimetic Applications. ACS Biomater Sci Eng 2021; 7:3545-3572. [PMID: 34309378 DOI: 10.1021/acsbiomaterials.1c00576] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Bolaamphiphile, which is a class of amphiphilic molecules, has a unique structure of two hydrophilic head groups at the ends of the hydrophobic center. Peptidic bolaamphiphiles that employ peptides or amino acids as their hydrophilic groups exhibit unique biochemical activities when they self-organize into supramolecular structures, which are not observed in a single molecule. The self-assembled peptidic bolaamphiphiles hold considerable promise for imitating proteins with biochemical activities, such as specific affinity toward heterogeneous substances, a catalytic activity similar to a metalloenzyme, physicochemical activity from harmonized amino acid segments, and the capability to encapsulate genes like a viral vector. These diverse activities give rise to large research interest in biomaterials engineering, along with the synthesis and characterization of the assembled structures. This review aims to address the recent progress in the applications of peptidic bolaamphiphile assemblies whose densely packed peptide motifs on their surface and their stacked hydrophobic centers exhibit unique protein-like activity and designer functionality, respectively.
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Affiliation(s)
- Hyesung Lee
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Hanbee Kim
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Sang-Yup Lee
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
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12
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Haque F, Khan MSA, AlQurashi N. ROS-Mediated Necrosis by Glycolipid Biosurfactants on Lung, Breast, and Skin Melanoma Cells. Front Oncol 2021; 11:622470. [PMID: 33796459 PMCID: PMC8009627 DOI: 10.3389/fonc.2021.622470] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 01/20/2021] [Indexed: 12/24/2022] Open
Abstract
Cancer is one of the major leading causes of death worldwide. Designing the new anticancer drugs is remained a challenging task due to ensure complexicity of cancer etiology and continuosly emerging drug resistance. Glycolipid biosurfactants are known to possess various biological activities including antimicrobial, anticancer and antiviral properties. In the present study, we sought to decipher the mechanism of action of the glycolipids (lactonic-sophorolipd, acidic-sophorolipid, glucolipid, and bolalipid) against cancer cells using lung cancer cell line (A549), breast cancer cell line (MDA-MB 231), and mouse skin melanoma cell line (B16F10). Scratch assay and fluorescence microscopy revealed that glycolipids inhibit tumorous cell migration possibly by inhibiting actin filaments. Fluorescence activated cell sorter (FACS) analysis exhibited that lactonic sophorolipid and glucolipid both induced the reactive oxygen species, altered the mitochondrial membrane potential (ΔΨ) and finally led to the cell death by necrosis. Furthermore, combinatorial effect of lactonic-sophorolipd and glucolipid demonstrated synergistic interaction on A549 cell line whereas additive effect on MDA-MB 231 and B16F10 cell lines. Our study has highlighted that lactonic-sophorolipd and glucolipid could be useful for developing new anticancer drugs either alone or in combination.
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Affiliation(s)
- Farazul Haque
- Department of Immunology and Genomic Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Mohd Sajjad Ahmad Khan
- Department of Basic Sciences, Deanship of Preparatory Year and Supporting Studies, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Naif AlQurashi
- Department of Basic Sciences, Deanship of Preparatory Year and Supporting Studies, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
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13
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Hughes JR, Miller AS, Wallace CE, Vemuri GN, Iovine PM. Biomedically Relevant Applications of Bolaamphiphiles and Bolaamphiphile-Containing Materials. Front Chem 2021; 8:604151. [PMID: 33553103 PMCID: PMC7855593 DOI: 10.3389/fchem.2020.604151] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 12/15/2020] [Indexed: 12/28/2022] Open
Abstract
Bolaamphiphiles (BAs) are structurally segmented molecules with rich assembly characteristics and diverse physical properties. Interest in BAs as standalone active agents or as constituents of more complex therapeutic formulations has increased substantially in recent years. The preorganized amphiphilicity of BAs allows for a range of biological activities including applications that rely on multivalency. This review summarizes BA-related research in biomedically relevant areas. In particular, we review BA-related literature in four areas: gene delivery, antimicrobial materials, hydrogels, and prodrugs. We also discuss several distinguishing characteristics of BAs that impact their utility as biomedically relevant compounds.
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Affiliation(s)
| | | | | | | | - Peter M. Iovine
- Department of Chemistry and Biochemistry, University of San Diego, San Diego, CA, United States
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14
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Drescher S, van Hoogevest P. The Phospholipid Research Center: Current Research in Phospholipids and Their Use in Drug Delivery. Pharmaceutics 2020; 12:pharmaceutics12121235. [PMID: 33353254 PMCID: PMC7766331 DOI: 10.3390/pharmaceutics12121235] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/11/2020] [Accepted: 12/14/2020] [Indexed: 12/16/2022] Open
Abstract
This review summarizes the research on phospholipids and their use for drug delivery related to the Phospholipid Research Center Heidelberg (PRC). The focus is on projects that have been approved by the PRC since 2017 and are currently still ongoing or have recently been completed. The different projects cover all facets of phospholipid research, from basic to applied research, including the use of phospholipids in different administration forms such as liposomes, mixed micelles, emulsions, and extrudates, up to industrial application-oriented research. These projects also include all routes of administration, namely parenteral, oral, and topical. With this review we would like to highlight possible future research directions, including a short introduction into the world of phospholipids.
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15
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Ismail DA, Ahmed HM, Ismail AR, Ahmad SM. Cationic Bola Form Metallosurfactants Based on Isothiouronium, Synthesis and Anti-Microbial Activity. TENSIDE SURFACT DET 2020. [DOI: 10.3139/113.110701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Abstract
Two series of well-defined dimeric metallo-bolaamphiphiles (bola surfactants) with the coordinated metal ions (Cu, Co, Zn) were prepared. These oligomeric surfactants consist of simple monomeric cationic surfactant fragments which are coupled via the hydrophilic ammonium chloride head groups by C6 and C12 spacer groups of different lengths. FTIR and 1HNMR identification techniques confirmed the obtained products. Measurements of surface tensions showed that the synthesized Bola amphiphiles have the desired, relatively low critical micelle formation concentrations (CMC). Bola amphiphiles with long spacer groups (C12) have a pronounced surface activity. The properties of these cationic surfactant oligomers in aqueous solution such as micellization and surface activity were discussed in relation to spacer group. In addition, the synthesized compounds were examined for their anti-microbial activity using the agar diffusion technique.
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Affiliation(s)
- Dina A. Ismail
- Egyptian Petroleum Research institute (EPRI) , Naser City, Cairo , Egypt
| | - Hend M. Ahmed
- Egyptian Petroleum Research institute (EPRI) , Naser City, Cairo , Egypt
- Emirates College of Technology , Science Department, Abu Dhabi , UAE
| | - Abdala R. Ismail
- Egyptian Petroleum Research institute (EPRI) , Naser City, Cairo , Egypt
| | - Sahar M. Ahmad
- Egyptian Petroleum Research institute (EPRI) , Naser City, Cairo , Egypt
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16
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Chafiq M, Chaouiki A, Damej M, Lgaz H, Salghi R, Ali IH, Benmessaoud M, Masroor S, Chung IM. Bolaamphiphile-class surfactants as corrosion inhibitor model compounds against acid corrosion of mild steel. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113070] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Dey S, Saha J. Minimal Coarse-Grained Modeling toward Implicit Solvent Simulation of Generic Bolaamphiphiles. J Phys Chem B 2020; 124:2938-2949. [DOI: 10.1021/acs.jpcb.0c00734] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Somajit Dey
- Department of Physics, University of Calcutta, 92, A.P.C Road, Kolkata 700009, India
| | - Jayashree Saha
- Department of Physics, University of Calcutta, 92, A.P.C Road, Kolkata 700009, India
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18
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Zumbuehl A. Artificial Phospholipids and Their Vesicles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:10223-10232. [PMID: 30278137 DOI: 10.1021/acs.langmuir.8b02601] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Phospholipids are at the heart and origin of life on this planet. The possibilities in terms of phospholipid self-assembly and biological functions seem limitless. Nonetheless, nature exploits only a small fraction of the available chemical space of phospholipids. Using chemical synthesis, artificial phospholipid structures become accessible, and the study of their biophysics may reveal unprecedented properties. In this article, the recent advances by our work group in the field of chemical lipidology are summarized. The family of diamidophospholipids is discussed in detail from monolayer characterization to the formation of faceted vesicles, culminating in the template-free self-assembly of phospholipid cubes and the possible applications of vesicle origami in modern personalized medicine.
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Affiliation(s)
- Andreas Zumbuehl
- Department of Chemistry , University of Fribourg , Chemin du Musée 9 , 1700 Fribourg , Switzerland
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19
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Zhang N, Wang T, Bu X, Wu Q, Zhang Z. Preparation of few‐layer two‐dimensional polymers by self‐assembly of bola‐amphiphilic small molecules. ACTA ACUST UNITED AC 2019. [DOI: 10.1002/pola.29444] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Na Zhang
- School of Materials Science and EngineeringNanjing Institute of Technology Nanjing 211167 People's Republic of China
- Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology Nanjing 211167 People's Republic of China
| | - Taisheng Wang
- School of Materials Science and EngineeringNanjing Institute of Technology Nanjing 211167 People's Republic of China
- Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology Nanjing 211167 People's Republic of China
| | - Xiaohai Bu
- School of Materials Science and EngineeringNanjing Institute of Technology Nanjing 211167 People's Republic of China
- Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology Nanjing 211167 People's Republic of China
| | - Qiong Wu
- School of Materials Science and EngineeringNanjing Institute of Technology Nanjing 211167 People's Republic of China
- Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology Nanjing 211167 People's Republic of China
| | - Zewu Zhang
- School of Materials Science and EngineeringNanjing Institute of Technology Nanjing 211167 People's Republic of China
- Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology Nanjing 211167 People's Republic of China
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20
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Gruhle K, Müller S, Meister A, Drescher S. Synthesis and aggregation behaviour of single-chain, 1,32-alkyl branched bis(phosphocholines): effect of lateral chain length. Org Biomol Chem 2019; 16:2711-2724. [PMID: 29589028 DOI: 10.1039/c8ob00424b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Three novel single-chain bis(phosphocholines) bearing two lateral alkyl chains of variable length next to the headgroup have been synthesized as model lipids for naturally occurring archaeal membrane lipids. The synthesis was realized using the Cu-catalyzed Grignard bis-coupling reaction of a primary bromide as a side part and a 1,ω-dibromide as a centre part. We could show that the aggregation behaviour of the resulting bolalipids strongly depends on the length of the lateral alkyl chain: the C3-branched bolalipid self-assembles into lamellar sheets, whereas the C6- and C9-analogues form nanofibres. The lamella-forming bolalipids could be used in the future to prepare stable and tailored liposomes for oral drug delivery.
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Affiliation(s)
- K Gruhle
- Institute of Pharmacy, Biophysical Pharmacy, Martin Luther University (MLU) Halle-Wittenberg, Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany.
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21
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Müller S, Meister A, Otto C, Hause G, Drescher S. Mixing behaviour of asymmetrical glycerol diether bolalipids with saturated and unsaturated phosphatidylcholines. Biophys Chem 2018; 238:39-48. [DOI: 10.1016/j.bpc.2018.04.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 04/17/2018] [Accepted: 04/21/2018] [Indexed: 12/17/2022]
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22
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Das M, Du Y, Mortensen JS, Bae HE, Byrne B, Loland CJ, Kobilka BK, Chae PS. An Engineered Lithocholate-Based Facial Amphiphile Stabilizes Membrane Proteins: Assessing the Impact of Detergent Customizability on Protein Stability. Chemistry 2018; 24:9860-9868. [PMID: 29741269 DOI: 10.1002/chem.201801141] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 04/27/2018] [Indexed: 01/06/2023]
Abstract
Amphiphiles are critical tools for the structural and functional study of membrane proteins. Membrane proteins encapsulated by conventional head-to-tail detergents tend to undergo structural degradation, necessitating the development of structurally novel agents with improved efficacy. In recent years, facial amphiphiles have yielded encouraging results in terms of membrane protein stability. Herein, we report a new facial detergent (i.e., LFA-C4) that confers greater stability to tested membrane proteins than the bola form analogue. Owing to the increased facial property and the adaptability of the detergent micelles in complex with different membrane proteins, LFA-C4 yields increased stability compared to n-dodecyl-β-d-maltoside (DDM). Thus, this study not only describes a novel maltoside detergent with enhanced protein-stabilizing properties, but also shows that the customizable nature of a detergent plays an important role in the stabilization of membrane proteins. Owing to both synthetic convenience and enhanced stabilization efficacy for a range of membrane proteins, the new agent has major potential in membrane protein research.
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Affiliation(s)
- Manabendra Das
- Department of Bionanotechnology, Hanyang University, Ansan, 155-88, Korea
| | - Yang Du
- Molecular and Cellular Physiology, Stanford, CA, 94305, USA
| | - Jonas S Mortensen
- Department of Neuroscience, University of Copenhagen, Copenhagen N, DK-2200, Denmark
| | - Hyoung Eun Bae
- Department of Bionanotechnology, Hanyang University, Ansan, 155-88, Korea
| | - Bernadette Byrne
- Department of Life Sciences, Imperial College London, London, SW7 2AZ, UK
| | - Claus J Loland
- Department of Neuroscience, University of Copenhagen, Copenhagen N, DK-2200, Denmark
| | | | - Pil Seok Chae
- Department of Bionanotechnology, Hanyang University, Ansan, 155-88, Korea
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23
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Unveiling the pH dependent interaction between bolaamphiphiles (dicarboxylic acids) and C10TAB (decyltrimethylammonium bromide) in aqueous medium. J Colloid Interface Sci 2018; 518:225-233. [DOI: 10.1016/j.jcis.2018.02.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 02/03/2018] [Accepted: 02/05/2018] [Indexed: 01/31/2023]
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24
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Novel coal and siloxane based surfactants: Bola polysiloxanes modified with butynediol-ethoxylate and their properties. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2017.10.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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25
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Martínez-Negro M, Guerrero-Martínez A, García-Río L, Domènech Ò, Aicart E, Tros de Ilarduya C, Junquera E. Multidisciplinary Approach to the Transfection of Plasmid DNA by a Nonviral Nanocarrier Based on a Gemini-Bolaamphiphilic Hybrid Lipid. ACS OMEGA 2018; 3:208-217. [PMID: 30023772 PMCID: PMC6044976 DOI: 10.1021/acsomega.7b01657] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 12/26/2017] [Indexed: 06/08/2023]
Abstract
A multidisciplinary strategy, including both biochemical and biophysical studies, was proposed here to evaluate the potential of lipid nanoaggregates consisting of a mixture of a gemini-bolaamphiphilic lipid (C6C22C6) and the well-known helper lipid 1,2-dioleoyl-sn-glycero-3-phosphatidylethanolamine (DOPE) to transfect plasmid DNA into living cells in an efficient and safe way. For that purpose, several experimental techniques were employed, such as zeta potential (phase analysis light scattering methodology), agarose gel electrophoresis (pDNA compaction and pDNA protection assays), small-angle X-ray scattering, cryo-transmission electron microscopy, atomic force microscopy, fluorescence-assisted cell sorting, luminometry, and cytotoxicity assays. The results revealed that the cationic lipid and plasmid offer only 70 and 30% of their nominal positive () and negative charges (), respectively. Upon mixing with DOPE, they form lipoplexes that self-aggregate in typical multilamellar Lα lyotropic liquid-crystal nanostructures with sizes in the range of 100-200 nm and low polydispersities, very suitably fitted to remain in the bloodstream and cross the cell membrane. Interestingly, these nanoaggregates were able to compact, protect (from the degrading effect of DNase I), and transfect two DNA plasmids (pEGFP-C3, encoding the green fluorescent protein, and pCMV-Luc, encoding luciferase) into COS-7 cells, with an efficiency equal or even superior to that of the universal control Lipo2000*, as long as the effective +/- charge ratio was maintained higher than 1 but reasonably close to electroneutrality. Moreover, this transfection process was not cytotoxic because the viability of COS-7 cells remained at high levels, greater than 80%. All of these features make the C6C22C6/DOPE nanosystem an optimal nonviral gene nanocarrier in vitro and a potentially interesting candidate for future in vivo experiments.
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Affiliation(s)
- María Martínez-Negro
- Departamento
de Química Física I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Andrés Guerrero-Martínez
- Departamento
de Química Física I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Luis García-Río
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CIQUS) and Departamento de Química
Física, Universidade de Santiago, 15782 Santiago, Spain
| | - Òscar Domènech
- Departamento
de Farmacia, Tecnología Farmacéutica y Fisicoquímica,
Facultad de Farmacia y Ciencia de Los Alimentos, Universitat de Barcelona, and Institut de Nanociència i Nanotecnologia
IN2UB, Barcelona, Catalonia 08028, Spain
| | - Emilio Aicart
- Departamento
de Química Física I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Conchita Tros de Ilarduya
- Departamento
de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad de Navarra, Instituto de Investigación
Sanitaria de Navarra, 31008 Pamplona, Spain
| | - Elena Junquera
- Departamento
de Química Física I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
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26
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Markowski T, Müller S, Dobner B, Meister A, Blume A, Drescher S. An Asymmetrical Glycerol Diether Bolalipid with Protonable Phosphodimethylethanolamine Headgroup: The Impact of pH on Aggregation Behavior and Miscibility with DPPC. Polymers (Basel) 2017; 9:E573. [PMID: 30965876 PMCID: PMC6418739 DOI: 10.3390/polym9110573] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 10/25/2017] [Accepted: 10/31/2017] [Indexed: 01/07/2023] Open
Abstract
Investigations regarding the self-assembly of (bola)phospholipids in aqueous media are crucial to understand the complex relationship between chemical structure of lipids and the shape and size of their aggregates in water. Here, we introduce a new asymmetrical glycerol diether bolaphospholipid, the compound Me₂PE-Gly(2C16)C32-OH. This bolalipid contains a long (C32) ω-hydroxy alkyl chain bond to glycerol in the sn-3 position, a C16 alkyl chain at the sn-2 position, and a protonable phosphodimethylethanolamine (Me₂PE) headgroup at the sn-1 position of the glycerol. The aggregation behavior of this bolalipid was studied as a function of temperature and pH using transmission electron microscopy (TEM), differential scanning calorimetry (DSC), and Fourier transform infrared (FTIR) spectroscopy. We show that this bolalipid aggregates into condensed lamellar sheets in acidic milieu and in large sheet-like aggregates at neutral pH-value. By contrast, at a pH-value of 10, where the Me₂PE headgroup is only partially protonated, small lipid disks with diameter 50⁻100 nm were additionally found. Moreover, the miscibility of this asymmetrical bolalipid with the bilayer-forming phosphatidylcholine DPPC was investigated by means of DSC and TEM. The incorporation of bolalipids into phospholipid membranes could result in stabilized liposomes applicable for drug delivery purposes. We show that mixtures of DPPC and Me₂PE-Gly(2C16)C32-OH form large lamellar aggregates at pH of 5, 7, and 10. However, closed lipid vesicles (liposomes) with an increased thermal stability were not found.
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Affiliation(s)
- Thomas Markowski
- Institute of Pharmacy-Biochemical Pharmacy, Martin Luther University (MLU) Halle-Wittenberg, Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany.
| | - Sindy Müller
- Institute of Pharmacy-Biophysical Pharmacy, MLU Halle-Wittenberg, Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany.
| | - Bodo Dobner
- Institute of Pharmacy-Biochemical Pharmacy, Martin Luther University (MLU) Halle-Wittenberg, Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany.
| | - Annette Meister
- Institute of Chemistry-Biophysical Chemistry, MLU Halle-Wittenberg, von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany.
- Institute of Biochemistry and Biotechnology, MLU Halle-Wittenberg, Kurt-Mothes-Strasse 3, 06120 Halle (Saale), Germany.
| | - Alfred Blume
- Institute of Chemistry-Biophysical Chemistry, MLU Halle-Wittenberg, von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany.
| | - Simon Drescher
- Institute of Pharmacy-Biophysical Pharmacy, MLU Halle-Wittenberg, Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany.
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27
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Drescher S, Garamus VM, Garvey CJ, Meister A, Blume A. Aggregation behaviour of a single-chain, phenylene-modified bolalipid and its miscibility with classical phospholipids. Beilstein J Org Chem 2017; 13:995-1007. [PMID: 28684979 PMCID: PMC5480355 DOI: 10.3762/bjoc.13.99] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 04/28/2017] [Indexed: 01/04/2023] Open
Abstract
In the present work, we describe the synthesis of a single-chain, phenylene-modified bolalipid with two phosphocholine headgroups, PC-C18pPhC18-PC, using a Sonogashira cross-coupling reaction as a key step. The aggregation behaviour was studied as a function of temperature using transmission electron microscopy (TEM), differential scanning calorimetry (DSC), Fourier-transform infrared (FTIR) spectroscopy, and small angle neutron scattering (SANS). We show that our new bolalipid self-assembles into nanofibres, which transform into flexible nanofibres at 27 °C and further to small elongated micelles at 45 °C. Furthermore, the miscibility of the bolalipid with bilayer-forming phosphatidylcholines (DMPC, DPPC, and DSPC) was investigated by means of DSC, TEM, FTIR, and small angle X-ray scattering (SAXS). We could show that the PC-C18pPhC18-PC is partially miscible with saturated phosphatidylcholines; however, closed lipid vesicles with an increased thermal stability were not found. Instead, bilayer fragments and disk-like aggregates are formed.
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Affiliation(s)
- Simon Drescher
- Institute of Pharmacy, Martin Luther University (MLU) Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120 Halle (Saale), Germany
| | - Vasil M Garamus
- Helmholtz-Zentrum Geesthacht (HZG), Centre for Materials and Costal Research, Max-Planck-Str. 1, 21502 Geesthacht, Germany
| | - Christopher J Garvey
- Australian Nuclear Science and Technology Organisation (ANSTO), Kirrawee DC, NSW, Australia
| | - Annette Meister
- Institute of Chemistry, MLU Halle-Wittenberg, von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
- Institute of Biochemistry and Biotechnology, MLU Halle-Wittenberg, Kurt-Mothes-Str. 3, 06120 Halle (Saale), Germany
| | - Alfred Blume
- Institute of Chemistry, MLU Halle-Wittenberg, von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
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28
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Latxague L, Gaubert A, Maleville D, Baillet J, Ramin MA, Barthélémy P. Carbamate-Based Bolaamphiphile as Low-Molecular-Weight Hydrogelators. Gels 2016; 2:gels2040025. [PMID: 30674156 PMCID: PMC6318576 DOI: 10.3390/gels2040025] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 09/21/2016] [Accepted: 09/22/2016] [Indexed: 11/16/2022] Open
Abstract
A new bolaamphiphile analog featuring carbamate moieties was synthesized in six steps starting from thymidine. The amphiphile structure exhibits nucleoside-sugar polar heads attached to a hydrophobic spacer via carbamate (urethane) functions. This molecular structure, which possesses additional H-bonding capabilities, induces the stabilization of low-molecular-weight gels (LMWGs) in water. The rheological studies revealed that the new bolaamphiphile 7 stabilizes thixotropic hydrogels with a high elastic modulus (G′ > 50 kPa).
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Affiliation(s)
- Laurent Latxague
- ARNA laboratory, Univ. Bordeaux, ChemBioPharm, INSERM, U1212, CNRS UMR 5320, F-33000 Bordeaux, France.
| | - Alexandra Gaubert
- ARNA laboratory, Univ. Bordeaux, ChemBioPharm, INSERM, U1212, CNRS UMR 5320, F-33000 Bordeaux, France.
| | - David Maleville
- ARNA laboratory, Univ. Bordeaux, ChemBioPharm, INSERM, U1212, CNRS UMR 5320, F-33000 Bordeaux, France.
| | - Julie Baillet
- ARNA laboratory, Univ. Bordeaux, ChemBioPharm, INSERM, U1212, CNRS UMR 5320, F-33000 Bordeaux, France.
| | - Michael A Ramin
- ARNA laboratory, Univ. Bordeaux, ChemBioPharm, INSERM, U1212, CNRS UMR 5320, F-33000 Bordeaux, France.
| | - Philippe Barthélémy
- ARNA laboratory, Univ. Bordeaux, ChemBioPharm, INSERM, U1212, CNRS UMR 5320, F-33000 Bordeaux, France.
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29
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Piecuch A, Lamch Ł, Paluch E, Obłąk E, Wilk KA. Biofilm prevention by dicephalic cationic surfactants and their interactions with DNA. J Appl Microbiol 2016; 121:682-92. [PMID: 27288863 DOI: 10.1111/jam.13204] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 06/02/2016] [Accepted: 06/08/2016] [Indexed: 11/30/2022]
Abstract
AIMS The studies were aimed to contribute to the elucidation of the relationships between structure of the double-headed cationic surfactants-N,N-bis[3,3'-(dimethylamine)- propyl]alkylamide dihydrochlorides and N,N-bis[3,3'-(trimethylammonio)propyl]alkylamide dibromides (alkyl: n-C9 H19 , n-C11 H23 , n-C13 H27 , n-C15 H31 ) and their antibacterial and biofilm preventing activity. METHODS AND RESULTS The minimal inhibitory and bactericidal concentrations (MIC and MBC) of dicephalic surfactants against Staphylococcus epidermidis and Pseudomonas aeruginosa were tested using standard methods. Pseudomonas aeruginosa was resistant to studied compounds but MBC values against Staph. epidermidis reached 0·48-0·01 mmol l(-1) . The influence of dicephalic surfactants on bacterial biofilm and adhesion to the various surfaces was investigated with crystal violet staining or colony counting. The reduction in bacterial adhesion was observed, especially in the case of glass and stainless steel. The condensation of the DNA was shown in the ethidium bromide intercalation assay. CONCLUSIONS Dicephalic surfactants exhibited antibacterial activity against Staph. epidermidis. The activity of studied compounds depended on the hydrocarbon chain length and the counterion. Surfactants deposited on different materials reduced Staph. epidermidis adhesion, dependently on the surfactant structure and the substratum. Dicephalic surfactants showed the ability of DNA compaction. SIGNIFICANCE AND IMPACT OF THE STUDY This study points the possibility of application of dicephalic surfactants as the surface-coating agents to prevent biofilm formation. These compounds efficiently condensed DNA and are potential candidates for further studies towards the transfection.
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Affiliation(s)
- A Piecuch
- Institute of Genetics and Microbiology, University of Wrocław, Wrocław, Poland
| | - Ł Lamch
- Department of Organic and Pharmaceutical Technology, Faculty of Chemistry, Wrocław University of Technology, Wrocław, Poland
| | - E Paluch
- Institute of Genetics and Microbiology, University of Wrocław, Wrocław, Poland
| | - E Obłąk
- Institute of Genetics and Microbiology, University of Wrocław, Wrocław, Poland
| | - K A Wilk
- Department of Organic and Pharmaceutical Technology, Faculty of Chemistry, Wrocław University of Technology, Wrocław, Poland
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30
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Cuvier A, Babonneau F, Berton J, Stevens CV, Fadda GC, Péhau‐Arnaudet G, Le Griel P, Prévost S, Perez J, Baccile N. Nanoscale Platelet Formation by Monounsaturated and Saturated Sophorolipids under Basic pH Conditions. Chemistry 2015; 21:19265-77. [DOI: 10.1002/chem.201502933] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Indexed: 12/15/2022]
Affiliation(s)
- Anne‐Sophie Cuvier
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Collège de France UMR 7574, Chimie de la Matière Condensée de Paris, UMR 7574, 75005 Paris (France)
| | - Florence Babonneau
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Collège de France UMR 7574, Chimie de la Matière Condensée de Paris, UMR 7574, 75005 Paris (France)
| | - Jan Berton
- SynBioC, Department of Sustainable Organic Chemistry and Technology, Ghent University, Ghent (Belgium)
| | - Christian V. Stevens
- SynBioC, Department of Sustainable Organic Chemistry and Technology, Ghent University, Ghent (Belgium)
| | - Giulia C. Fadda
- Laboratoire Léon Brillouin, LLB, CEA Saclay, 91191 Gif‐sur‐Yvette Cedex (France)
| | | | - Patrick Le Griel
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Collège de France UMR 7574, Chimie de la Matière Condensée de Paris, UMR 7574, 75005 Paris (France)
| | - Sylvain Prévost
- ESRF ‐ The European Synchrotron, High Brilliance Beamline ID02, 38043 Grenoble (France)
| | - Javier Perez
- SWING, Synchrotron Soleil, BP 48, 91192 Gif‐sur‐Yvette, (France)
| | - Niki Baccile
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Collège de France UMR 7574, Chimie de la Matière Condensée de Paris, UMR 7574, 75005 Paris (France)
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31
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Markowski T, Drescher S, Förster G, Lechner BD, Meister A, Blume A, Dobner B. Highly asymmetrical glycerol diether bolalipids: synthesis and temperature-dependent aggregation behavior. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:10683-10692. [PMID: 26366715 DOI: 10.1021/acs.langmuir.5b02951] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In the present work, we describe the synthesis and temperature-dependent aggregation behavior of two examples of a new class of highly asymmetrical glycerol diether bolaphospholipids. The bolalipids contain a long alkyl chain (C32) bound to glycerol in the sn-3 position, carrying a hydroxyl group at the ω position. The C16 alkyl chain in the sn-2 position either possesses a racemic methyl branch at the 10 position of the short alkyl chain (lipid II) or does not (lipid I). The sn-1 position of the glycerol is linked to a zwitterionic phosphocholine moiety. The temperature-dependent aggregation behavior of both bolalipids was studied using differential scanning calorimetry (DSC), Fourier-transform infrared (FTIR) spectroscopy, and X-ray scattering. Aggregate structures were visualized by transmission electron microscopy (TEM). We show that both bolalipids self-assemble into large lamellar sheetlike aggregates. Closed lipid vesicles or other aggregate structures such as tubes or nanofibers, as usually found for diglycerol tetraether lipids, were not observed. Within the lamellae the bolalipid molecules are arranged in an antiparallel (interdigitated) orientation. Lipid I, without an additional methyl moiety in the short alkyl chain, shows a lamellar phase with high crystallinity up to a temperature of 34 °C, which was not observed before for other phospholipids.
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Affiliation(s)
- Thomas Markowski
- Institute of Pharmacy, Martin Luther University (MLU) Halle-Wittenberg , Wolfgang-Langenbeck-Str. 4, 06120 Halle (Saale), Germany
| | - Simon Drescher
- Institute of Pharmacy, Martin Luther University (MLU) Halle-Wittenberg , Wolfgang-Langenbeck-Str. 4, 06120 Halle (Saale), Germany
| | - Günter Förster
- Institute of Chemistry, MLU Halle-Wittenberg , von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
| | - Bob-Dan Lechner
- Institute of Chemistry, MLU Halle-Wittenberg , von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
| | - Annette Meister
- Center for Structure and Dynamics of Proteins (MZP), MLU Halle-Wittenberg, Biocenter , Weinbergweg 22, 06120 Halle (Saale), Germany
| | - Alfred Blume
- Institute of Chemistry, MLU Halle-Wittenberg , von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
| | - Bodo Dobner
- Institute of Pharmacy, Martin Luther University (MLU) Halle-Wittenberg , Wolfgang-Langenbeck-Str. 4, 06120 Halle (Saale), Germany
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32
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Werner S, Ebert H, Lechner BD, Lange F, Achilles A, Bärenwald R, Poppe S, Blume A, Saalwächter K, Tschierske C, Bacia K. Dendritic domains with hexagonal symmetry formed by x-shaped bolapolyphiles in lipid membranes. Chemistry 2015; 21:8840-50. [PMID: 25940233 PMCID: PMC4517157 DOI: 10.1002/chem.201405994] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Indexed: 12/22/2022]
Abstract
A novel class of bolapolyphile (BP) molecules are shown to integrate into phospholipid bilayers and self-assemble into unique sixfold symmetric domains of snowflake-like dendritic shapes. The BPs comprise three philicities: a lipophilic, rigid, π-π stacking core; two flexible lipophilic side chains; and two hydrophilic, hydrogen-bonding head groups. Confocal microscopy, differential scanning calorimetry, XRD, and solid-state NMR spectroscopy confirm BP-rich domains with transmembrane-oriented BPs and three to four lipid molecules per BP. Both species remain well organized even above the main 1,2-dipalmitoyl-sn-glycero-3-phosphocholine transition. The BP molecules only dissolve in the fluid membrane above 70 °C. Structural variations of the BP demonstrate that head-group hydrogen bonding is a prerequisite for domain formation. Independent of the head group, the BPs reduce membrane corrugation. In conclusion, the BPs form nanofilaments by π stacking of aromatic cores, which reduce membrane corrugation and possibly fuse into a hexagonal network in the dendritic domains.
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Affiliation(s)
- Stefan Werner
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg06120 Halle (Saale) (Germany) E-mail:
- ZIK HALOmem, Martin-Luther-Universität Halle-Wittenberg06120 Halle (Saale) (Germany)
| | - Helgard Ebert
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg06120 Halle (Saale) (Germany) E-mail:
| | - Bob-Dan Lechner
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg06120 Halle (Saale) (Germany) E-mail:
| | - Frank Lange
- Institut für Physik - NMR, Martin-Luther-Universität Halle-Wittenberg06120 Halle (Saale) (Germany)
| | - Anja Achilles
- Institut für Physik - NMR, Martin-Luther-Universität Halle-Wittenberg06120 Halle (Saale) (Germany)
| | - Ruth Bärenwald
- Institut für Physik - NMR, Martin-Luther-Universität Halle-Wittenberg06120 Halle (Saale) (Germany)
| | - Silvio Poppe
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg06120 Halle (Saale) (Germany) E-mail:
| | - Alfred Blume
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg06120 Halle (Saale) (Germany) E-mail:
| | - Kay Saalwächter
- Institut für Physik - NMR, Martin-Luther-Universität Halle-Wittenberg06120 Halle (Saale) (Germany)
| | - Carsten Tschierske
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg06120 Halle (Saale) (Germany) E-mail:
| | - Kirsten Bacia
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg06120 Halle (Saale) (Germany) E-mail:
- ZIK HALOmem, Martin-Luther-Universität Halle-Wittenberg06120 Halle (Saale) (Germany)
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33
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Tyagi M, Kartha KPR. Synthesis of glycotriazololipids and observations on their self-assembly properties. Carbohydr Res 2015; 413:85-92. [PMID: 26114887 DOI: 10.1016/j.carres.2015.04.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2015] [Revised: 03/30/2015] [Accepted: 04/08/2015] [Indexed: 11/28/2022]
Abstract
Various carbohydrate-anchored triazole-linked lipids prepared by solvent-free mechanochemical azide-alkyne click reaction, on analysis by TEM, have been found to spontaneously self-assemble in solvents leading to structures of interesting physicochemical attributes. Interestingly, analogous compounds based on different sugars (e.g., d-glucose, and d-galactose, as also d-lactose) assemble in patterns distinctly different from each other thus reiterating the fact that the structure of the sugar as well as that of the lipid are important factors that determine the size and shape of the supramolecular assembly formed. Besides, the molecular self-assembly was also found to be solvent-as well as temperature-dependent.
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Affiliation(s)
- Mohit Tyagi
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Punjab, India
| | - K P Ravindranathan Kartha
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Punjab, India.
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34
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Latxague L, Ramin MA, Appavoo A, Berto P, Maisani M, Ehret C, Chassande O, Barthélémy P. Control of stem-cell behavior by fine tuning the supramolecular assemblies of low-molecular-weight gelators. Angew Chem Int Ed Engl 2015; 54:4517-21. [PMID: 25693962 DOI: 10.1002/anie.201409134] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 11/05/2014] [Indexed: 11/12/2022]
Abstract
Controlling the behavior of stem cells through the supramolecular architecture of the extracellular matrix remains an important challenge in the culture of stem cells. Herein, we report on a new generation of low-molecular-weight gelators (LMWG) for the culture of isolated stem cells. The bola-amphiphile structures derived from nucleolipids feature unique rheological and biological properties suitable for tissue engineering applications. The bola-amphiphile-based hydrogel scaffold exhibits the following essential properties: it is nontoxic, easy to handle, injectable, and features a biocompatible rheology. The reported glycosyl-nucleoside bola-amphiphiles (GNBA) are the first examples of LMWG that allow the culture of isolated stem cells in a gel matrix. The results (TEM observations and rheology) suggest that the supramolecular organizations of the matrix play a role in the behavior of stem cells in 3D environments.
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35
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Latxague L, Ramin MA, Appavoo A, Berto P, Maisani M, Ehret C, Chassande O, Barthélémy P. Control of Stem-Cell Behavior by Fine Tuning the Supramolecular Assemblies of Low-Molecular-Weight Gelators. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201409134] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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36
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Terme N, Jacquemet A, Benvegnu T, Vié V, Lemiègre L. Modification of bipolar lipid conformation at the air/water interface by a single stereochemical variation. Chem Phys Lipids 2014; 183:9-17. [DOI: 10.1016/j.chemphyslip.2014.04.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Revised: 04/25/2014] [Accepted: 04/28/2014] [Indexed: 01/10/2023]
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37
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Drescher S, Meister A, Garamus VM, Hause G, Garvey CJ, Dobner B, Blume A. Phenylene bolaamphiphiles: Influence of the substitution pattern on the aggregation behavior and the miscibility with classical phospholipids. EUR J LIPID SCI TECH 2014. [DOI: 10.1002/ejlt.201300387] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Simon Drescher
- Martin-Luther-Universitaet (MLU) Halle-Wittenberg; Institute of Pharmacy; Halle (Saale) Germany
| | - Annette Meister
- Center for structure and dynamics of proteins (MZP); MLU Halle-Wittenberg; Halle (Saale) Germany
| | - Vasil M. Garamus
- Helmholtz-Zentrum Geesthacht (HZG); Centre for Materials and Coastal Research; Geesthacht Germany
| | - Gerd Hause
- Biocenter; MLU Halle-Wittenberg; Halle (Saale) Germany
| | | | - Bodo Dobner
- Martin-Luther-Universitaet (MLU) Halle-Wittenberg; Institute of Pharmacy; Halle (Saale) Germany
| | - Alfred Blume
- MLU Halle-Wittenberg; Institute of Chemistry; Halle (Saale) Germany
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38
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Blume A, Drescher S, Graf G, Köhler K, Meister A. Self-assembly of different single-chain bolaphospholipids and their miscibility with phospholipids or classical amphiphiles. Adv Colloid Interface Sci 2014; 208:264-78. [PMID: 24508500 DOI: 10.1016/j.cis.2014.01.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 01/02/2014] [Accepted: 01/02/2014] [Indexed: 10/25/2022]
Abstract
A variety of bolalipids with a single long alkyl chain and two identical headgroups self-assemble in aqueous solutions into helical entangled nanofibers leading to the formation of a hydrogel. An increase in temperature usually leads to the break-up of the fiber structure into micellar aggregates. In this paper the question is addressed whether bolalipids of different lengths or different headgroup structures can form mixed fibers. Also, the stability of the fiber aggregation of bolalipids in mixtures with phospholipids forming lamellar bilayers is discussed. Here, the question whether single-chain bolalipids can be incorporated into phospholipid bilayers to stabilize bilayer membranes is important, as possibly lipid vesicles used for drug delivery can be improved. Finally, the stability of the fiber aggregate against solubilisation by common surfactants was studied. The paper addresses the question which type of aggregate structure dominates the self-assembly of bipolar and monopolar amphiphiles in aqueous suspension.
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39
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Fameau AL, Zemb T. Self-assembly of fatty acids in the presence of amines and cationic components. Adv Colloid Interface Sci 2014; 207:43-64. [PMID: 24345730 DOI: 10.1016/j.cis.2013.11.017] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Revised: 11/18/2013] [Accepted: 11/21/2013] [Indexed: 11/27/2022]
Abstract
Fatty acids can self-assemble under various shapes in the presence of amines or cationic components. We assemble and compare these types of self-assembly leading toward a catanionic system either with a cationic surfactant or with an amine component playing the role of counter-ion. First, we focus on the molar ratio as a key driving parameter. Known and yet un-known values from other quantities governing the colloidal properties of these systems such as structural surface charge, osmotic pressure, molecular segregation, rigidity, in plane colloidal interactions and melting transition are discussed. We include also recent results obtained on the interfacial and foaming properties of these systems. We will highlight the specificity of these self-assemblies leading to unusual macroscopic properties rich of robust applications.
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40
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Kameta N. Soft nanotube hosts for capsulation and release of molecules, macromolecules, and nanomaterials. J INCL PHENOM MACRO 2014. [DOI: 10.1007/s10847-014-0397-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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41
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Zumbuehl A, Dobner B, Brezesinski G. Phase behavior of selected artificial lipids. Curr Opin Colloid Interface Sci 2014. [DOI: 10.1016/j.cocis.2014.01.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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42
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Abstract
Stable aqueous dispersions of fatty acids can now be obtained and yield multiple applications.
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Affiliation(s)
- Jean-Paul Douliez
- UMR 1332
- Biologie et Pathologie du Fruit
- INRA
- Centre de Bordeaux
- 33883 Villenave d'Ornon, France
| | - Cédric Gaillard
- UR 1268 Biopolymères Interactions et Assemblages
- INRA
- rue de la Géraudière
- 44316 Nantes, France
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43
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Wu G, Thomas J, Smet M, Wang Z, Zhang X. Controlling the self-assembly of cationic bolaamphiphiles: hydrotropic counteranions determine aggregated structures. Chem Sci 2014. [DOI: 10.1039/c4sc00860j] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The size and substitution pattern of hydrotropic counteranions determine the aggregated structures of cationic bolaamphiphiles.
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Affiliation(s)
- Guanglu Wu
- MOE Key Lab of Organic Optoelectronics & Molecular Engineering Department of Chemistry
- Tsinghua University
- Beijing 100084, China
| | | | | | - Zhiqiang Wang
- MOE Key Lab of Organic Optoelectronics & Molecular Engineering Department of Chemistry
- Tsinghua University
- Beijing 100084, China
| | - Xi Zhang
- MOE Key Lab of Organic Optoelectronics & Molecular Engineering Department of Chemistry
- Tsinghua University
- Beijing 100084, China
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44
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Drescher S, Dobner B. Synthesis of Novel Asymmetrical Single-Chain Phosphoglycol-Based Bolaamphiphiles. SYNTHETIC COMMUN 2013. [DOI: 10.1080/00397911.2013.825806] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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45
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Collapsed bipolar glycolipids at the air/water interface: effect of the stereochemistry on the stretched/bent conformations. J Colloid Interface Sci 2013; 412:72-81. [PMID: 24144376 DOI: 10.1016/j.jcis.2013.09.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 09/04/2013] [Accepted: 09/05/2013] [Indexed: 12/27/2022]
Abstract
This article describes a comparative study of several bipolar lipids derived from tetraether structures. The sole structural difference between the main two glycolipids is a unique stereochemical variation on a cyclopentyl ring placed in the middle of the lipids. We discuss the comparative results obtained at the air/water interface on the basis of tensiometry and ellipsometry. Langmuir-Blodgett depositions during lipid film compressions and decompressions were also analyzed by AFM. The lactosylated tetraether (bipolar) lipid structures involved the formation of highly stable multilayers, which are still present at 10 mN m(-1) during decompression. This study suggests also that the stereochemistry of a central cyclopentyl ring dramatically drives the conformation of the corresponding bipolar lipids. Both isomers (trans and cis) adopt a U-shaped (bent) conformation at the air/water interface but the trans cyclopentyl ring induces a much more frustration within this type of conformation. Consequently, this bipolar lipid (trans-tetraether) undergoes a flip of one polar head-group (lactosyl) leading to a stretched conformation during collapse.
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46
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Kameta N, Ishikawa K, Masuda M, Shimizu T. Control of self-assembled morphology and molecular packing of asymmetric glycolipids by association/dissociation with poly(thiopheneboronic acid). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:13291-13298. [PMID: 24090115 DOI: 10.1021/la4028018] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The molecular packing and self-assembled morphologies of asymmetric bolaamphiphiles, N-(2-aminoethyl)-N'-(β-d-glucopyranosyl)alkanediamide [1(n), n = 12, 14, 16, 17, 18, and 20], were precisely controlled by association/dissociation with poly(thiopheneboronic acid) (PTB). Differential scanning calorimetry, X-ray diffraction, and infrared spectroscopy revealed that the starting film of 1(n) associated with 1 equiv of the boronic acid moiety of PTB, (Film-1(n)PTB), had antiparallel molecular packing of 1(n) moiety within the monolayer membranes. However, the molecular packing of the starting film that contained 0.5 equiv of the boronic acid moiety of PTB (Film-2eq1(n)PTB) was parallel. The dispersion of Film-1(n)PTB in water gave only nanotapes, whereas that of Film-2eq1(n)PTB in water selectively formed nanotubes, through a dissociation reaction of PTB based on the hydrolysis of the boronate esters in the complexes. The nanotapes and nanotubes memorized the antiparallel and parallel molecular packing of the starting films, respectively. Changes in the length of the oligomethylene spacer of 1(n) never affected the molecular packing or self-assembled morphologies. However, the inner diameters of the nanotubes increased irregularly in the range of 67.9-79.6 nm as the length of the oligomethylene spacer of 1(n) increased from n = 12 to n = 18.
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Affiliation(s)
- Naohiro Kameta
- Nanosystem Research Institute (NRI) and ‡Nanotube Research Center (NTRC), National Institute of Advanced Industrial Science and Technology (AIST) , Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
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47
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Graf G, Drescher S, Meister A, Garamus VM, Dobner B, Blume A. Tuning the aggregation behaviour of single-chain bolaamphiphiles in aqueous suspension by changes in headgroup asymmetry. SOFT MATTER 2013; 9:9562-9571. [PMID: 26029763 DOI: 10.1039/c3sm51778k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The self-assembly process in aqueous suspension of two new asymmetrical single-chain bolaamphiphiles, namely 32-{[hydroxy(2-hydroxyethoxy)phosphinyl]oxy}dotriacontane-1-yl-{2-[N-(3-dimethylaminopropyl)-N,N-dimethylammonio]ethylphosphate} (DMAPPC-C32-POH) and 32-hydroxydotriacontane-1-yl-{2-[N-(3-dimethylaminopropyl)-N,N-dimethylammonio]ethylphosphate} (DMAPPC-C32-OH), was studied as a function of temperature using transmission electron microscopy, differential scanning calorimetry, FT-IR-spectroscopy, small angle neutron and small angle X-ray scattering to determine whether the asymmetry of the molecule induces the formation of types of aggregates other than the well characterized helical nanofibres of structurally similar symmetrical single-chain bolaamphiphiles with identical headgroups. DMAPPC-C32-POH in acetate buffer at pH 5 can still form nanofibres, i.e. the asymmetry does not induce the formation of other aggregate structures. However, the fibres display a tendency to break more easily and to form irregular, circular structures. This is also reflected by the rheological properties of the suspension that reveal decreased strain resistance at pH 5. In aqueous suspensions at pH 10, where the headgroups of the molecule are negatively charged, only short fibre segments are formed and no gel formation occurs. At higher temperature these fibres convert into micellar aggregates as observed before for symmetrical bolalipids with large headgroups. In contrast, in aqueous suspensions of DMAPPC-C32-OH, a bolalipid where the size difference of the headgroups is much larger, lamellar structures are formed at pH 10 where the headgroup of the molecule is zwitterionic. At low temperature, the molecules are packed in an orthorhombic lattice with interdigitated chains and a repeat distance between lamellae of 6.2 nm is observed. An increase in temperature leads to a lamellar phase with hexagonal packing of the chains. The chains become liquid-crystalline only at very high temperature above 90 °C. At low pH, when the headgroup of the molecule becomes positively charged, some short elongated micellar aggregates are seen besides sheet-like structures. A temperature increase leads to a similar sequence of transformations of the chain packing until formation of a liquid-crystalline lamellar phase at a temperature close to 90 °C. The results show that the aggregation behaviour of single-chain bolaamphiphiles can not only be tuned by changes in chain length or size of both headgroups but also by the difference in headgroup size and charge in asymmetric bolaamphiphiles.
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Affiliation(s)
- Gesche Graf
- Institute of Chemistry, Physical Chemistry, MLU Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
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48
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Landsmann S, Luka M, Polarz S. Bolaform surfactants with polyoxometalate head groups and their assembly into ultra-small monolayer membrane vesicles. Nat Commun 2013; 3:1299. [PMID: 23250429 PMCID: PMC3535418 DOI: 10.1038/ncomms2321] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Accepted: 11/22/2012] [Indexed: 11/09/2022] Open
Abstract
Surfactants are indispensable in established technologies as detergents or emulsification agents, and also in recent studies for controlling the growth of nanoparticles or for creating nanocarriers. Although the properties of conventional, organic surfactants are thoroughly explored, strong interest persists in surfactants that possess unique features inaccessible for ordinary systems. Here we present dipolar, bolaform surfactants with a head group comprising of 11 tungsten atoms. These novel compounds are characterized by an exceptionally low critical self-organization concentration, which leads to monolayer vesicles with a diameter of only 15 nm, that is, substantially smaller than for any other system. The membrane of the vesicles is impermeable for water-soluble and oil-soluble guests. Control over release kinetics, which can be followed via the quantitative fluorescence quenching of confined fluorophores, is gained by means of pH adjustments.
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Affiliation(s)
- Steve Landsmann
- Department of Chemistry, University of Konstanz, D-78457 Konstanz, Germany
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49
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Graf G, Drescher S, Meister A, Haramus VM, Dobner B, Blume A. Bolalipid fiber aggregation can be modulated by the introduction of sulfur atoms into the spacer chains. J Colloid Interface Sci 2013; 393:143-50. [DOI: 10.1016/j.jcis.2012.10.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Revised: 10/09/2012] [Accepted: 10/10/2012] [Indexed: 10/27/2022]
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50
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Łuczyński J, Frąckowiak R, Włoch A, Kleszczyńska H, Witek S. Gemini ester quat surfactants and their biological activity. Cell Mol Biol Lett 2013; 18:89-101. [PMID: 23271433 PMCID: PMC6275804 DOI: 10.2478/s11658-012-0041-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2012] [Accepted: 12/13/2012] [Indexed: 11/20/2022] Open
Abstract
Cationic gemini surfactants are an important class of surface-active compounds that exhibit much higher surface activity than their monomeric counterparts. This type of compound architecture lends itself to the compound being easily adsorbed at interfaces and interacting with the cellular membranes of microorganisms. Conventional cationic surfactants have high chemical stability but poor chemical and biological degradability. One of the main approaches to the design of readily biodegradable and environmentally friendly surfactants involves inserting a bond with limited stability into the surfactant molecule to give a cleavable surfactant. The best-known example of such a compound is the family of ester quats, which are cationic surfactants with a labile ester bond inserted into the molecule. As part of this study, a series of gemini ester quat surfactants were synthesized and assayed for their biological activity. Their hemolytic activity and changes in the fluidity and packing order of the lipid polar heads were used as the measures of their biological activity. A clear correlation between the hemolytic activity of the tested compounds and their alkyl chain length was established. It was found that the compounds with a long hydrocarbon chain showed higher activity. Moreover, the compounds with greater spacing between their alkyl chains were more active. This proves that they incorporate more easily into the lipid bilayer of the erythrocyte membrane and affect its properties to a greater extent. A better understanding of the process of cell lysis by surfactants and of their biological activity may assist in developing surfactants with enhanced selectivity and in widening their range of application.
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Affiliation(s)
- Jacek Łuczyński
- Faculty of Chemistry, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
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