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Das S, Zheng C, Lodge TP, Siepmann JI, Mahanthappa MK, Calabrese MA, Reineke TM. Self-Assembly of Unusually Stable Thermotropic Network Phases by Cellobiose-Based Guerbet Glycolipids. Biomacromolecules 2024; 25:1291-1302. [PMID: 38170593 DOI: 10.1021/acs.biomac.3c01266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Bicontinuous thermotropic liquid crystal (LC) materials, e.g., double gyroid (DG) phases, have garnered significant attention due to the potential utility of their 3D network structures in wide-ranging applications. However, the utility of these materials is significantly constrained by the lack of robust molecular design rules for shape-filling amphiphiles that spontaneously adopt the saddle curvatures required to access these useful supramolecular assemblies. Toward this aim, we synthesized anomerically pure Guerbet-type glycolipids bearing cellobiose head groups and branched alkyl tails and studied their thermotropic LC self-assembly. Using a combination of differential scanning calorimetry, polarized optical microscopy, and small-angle X-ray scattering, our studies demonstrate that Guerbet cellobiosides exhibit a strong propensity to self-assemble into DG morphologies over wide thermotropic phase windows. The stabilities of these assemblies sensitively depend on the branched alkyl tail structure and the anomeric configuration of the glycolipid in a previously unrecognized manner. Complementary molecular simulations furnish detailed insights into the observed self-assembly characteristics, thus unveiling molecular motifs that foster network phase self-assembly that will enable future designs and applications of network LC materials.
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Affiliation(s)
- Soumi Das
- Department of Chemistry, University of Minnesota Twin Cities, 207 Pleasant St SE, Minneapolis, Minnesota 55455, United States
| | - Caini Zheng
- Department of Chemistry, University of Minnesota Twin Cities, 207 Pleasant St SE, Minneapolis, Minnesota 55455, United States
| | - Timothy P Lodge
- Department of Chemistry, University of Minnesota Twin Cities, 207 Pleasant St SE, Minneapolis, Minnesota 55455, United States
- Department of Chemical Engineering and Materials Science, University of Minnesota Twin Cities, 421 Washington Avenue SE #151, Minneapolis, Minnesota 55455, United States
| | - J Ilja Siepmann
- Department of Chemistry, University of Minnesota Twin Cities, 207 Pleasant St SE, Minneapolis, Minnesota 55455, United States
| | - Mahesh K Mahanthappa
- Department of Chemical Engineering and Materials Science, University of Minnesota Twin Cities, 421 Washington Avenue SE #151, Minneapolis, Minnesota 55455, United States
| | - Michelle A Calabrese
- Department of Chemical Engineering and Materials Science, University of Minnesota Twin Cities, 421 Washington Avenue SE #151, Minneapolis, Minnesota 55455, United States
| | - Theresa M Reineke
- Department of Chemistry, University of Minnesota Twin Cities, 207 Pleasant St SE, Minneapolis, Minnesota 55455, United States
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2
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Nguan H, Ishak KA, Zahid NI, Martinez-Felipe A, Hashim R, Aripin NFK. Incommensurate lamellar phase from long chain Mannosides: Investigation by X-Ray scattering and replica exchange molecular dynamics (REMD). J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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3
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Wang YC, Kegel LL, Knoff DS, Deodhar BS, Astashkin AV, Kim M, Pemberton JE. Layered supramolecular hydrogels from thioglycosides. J Mater Chem B 2022; 10:3861-3875. [PMID: 35470365 DOI: 10.1039/d2tb00037g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Low molecular weight hydrogels are made of small molecules that aggregate via noncovalent interactions. Here, comprehensive characterization of the physical and chemical properties of hydrogels made from thioglycolipids of the disaccharides lactose and cellobiose with simple alkyl chains is reported. While thiolactoside hydrogels are robust, thiocellobioside gels are metastable, precipitating over time into fibrous crystals that can be entangled to create pseudo-hydrogels. Rheology confirms the viscoelastic solid nature of these hydrogels with storage moduli ranging from 10-600 kPa. Additionally, thiolactoside hydrogels are thixotropic which is a desirable property for many potential applications. Freeze-fracture electron microscopy of xerogels shows layers of stacked sheets that are entangled into networks. These structures are unique compared to the fibers or ribbons typically reported for hydrogels. Differential scanning calorimetry provides gel-to-liquid phase transition temperatures ranging from 30 to 80 °C. Prodan fluorescence spectroscopy allows assignment of phase transitions in the gels and other lyotropic phases of high concentration samples. Phase diagrams are estimated for all hydrogels at 1-10 wt% from 5 to ≥ 80 °C. These hydrogels represent a series of interesting materials with unique properties that make them attractive for numerous potential applications.
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Affiliation(s)
- Yu-Cheng Wang
- Department of Chemistry and Biochemistry, University of Arizona, 1306 E University Boulevard, Tucson, Arizona 85721, USA.
| | - Laurel L Kegel
- Department of Chemistry and Biochemistry, University of Arizona, 1306 E University Boulevard, Tucson, Arizona 85721, USA.
| | - David S Knoff
- Department of Biomedical Engineering, University of Arizona, 1127 E James E Rogers Way, Tucson, AZ 85721, USA
| | - Bhushan S Deodhar
- Department of Chemistry and Biochemistry, University of Arizona, 1306 E University Boulevard, Tucson, Arizona 85721, USA.
| | - Andrei V Astashkin
- Department of Chemistry and Biochemistry, University of Arizona, 1306 E University Boulevard, Tucson, Arizona 85721, USA.
| | - Minkyu Kim
- Department of Biomedical Engineering, University of Arizona, 1127 E James E Rogers Way, Tucson, AZ 85721, USA.,Department of Materials Science and Engineering, University of Arizona, 1235 E James E Rogers Way, Tucson, AZ 85721, USA.,BIO5 Institute, University of Arizona, 1657 E Helen Street, Tucson, AZ 85721, USA
| | - Jeanne E Pemberton
- Department of Chemistry and Biochemistry, University of Arizona, 1306 E University Boulevard, Tucson, Arizona 85721, USA.
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5
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Ng SH, Mazlee MTFB, Heidelberg T. Biantennary Alkyl Triazole Glycosides by Double‐
click
‐Coupling for Water‐in‐Oil‐Emulsification. J SURFACTANTS DETERG 2021. [DOI: 10.1002/jsde.12511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Su Han Ng
- Chemistry Department, Faculty of Science University of Malaya Lembah Pantai Kuala Lumpur 50603 Malaysia
| | | | - Thorsten Heidelberg
- Chemistry Department, Faculty of Science University of Malaya Lembah Pantai Kuala Lumpur 50603 Malaysia
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6
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Nestor JJ, Wang W. Surfactant‐modified parathyroid hormone fragments with high potency and prolonged action: Structure‐informed design using glycolipid surfactant conjugation. Pept Sci (Hoboken) 2021. [DOI: 10.1002/pep2.24225] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
| | - Wei Wang
- CS Bio Co Menlo Park California USA
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7
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Nestor JJ, Zhang X, Jaw‐Tsai S, Parkes DG, Becker CK. Design and characterization of a surfactant‐conjugated, long‐acting, balanced
GLP
‐1/glucagon receptor dual agonist. Pept Sci (Hoboken) 2021. [DOI: 10.1002/pep2.24221] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- John J. Nestor
- Spitfire Pharma, Inc. South San Francisco California USA
| | - Xiaoming Zhang
- Velocity Pharmaceutical Development LLC South San Francisco California USA
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8
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Hussein Ali T, Syahila Duali Hussen R, Heidelberg T, Anua Bin Tajuddin H. X‐Shaped Sugar‐Derived Emulsifiers From ‘Click Chemistry’ ‐ A New Gemini Surfactant Type for Oil‐in‐Water Systems. ChemistrySelect 2020. [DOI: 10.1002/slct.202000929] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tammar Hussein Ali
- Chemistry DepartmentFaculty of Science, University of Malaya 50603 Kuala Lumpur Malaysia
- Faculty of PharmacyAl Muthanna University 66001 Samawah, Al Muthanna Iraq
| | | | - Thorsten Heidelberg
- Chemistry DepartmentFaculty of Science, University of Malaya 50603 Kuala Lumpur Malaysia
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Lemahieu G, Aguilhon J, Strub H, Molinier V, Ontiveros JF, Aubry JM. Hexahydrofarnesyl as an original bio-sourced alkyl chain for the preparation of glycosides surfactants with enhanced physicochemical properties. RSC Adv 2020; 10:16377-16389. [PMID: 35498839 PMCID: PMC9052940 DOI: 10.1039/d0ra02326d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 04/13/2020] [Indexed: 11/21/2022] Open
Abstract
Five new bio-based surfactants have been synthetized by coupling hexahydrofarnesol with mono and di-saccharides. Hexahydrofarnesol (3,7,11-trimethyl-dodecan-1-ol) is a by-product of the industrial production of farnesane, a sustainable aviation fuel obtained by a fermentation process from sugar feedstocks. Using hexahydrofarnesol as the lipophilic starting material allows obtaining 100% bio-based surfactants while valorizing an industrial by-product. Moreover, the C15-branched alkyl chain brings unique properties to the surfactants. This paper presents a physicochemical characterization of these new surfactants including their behaviors in water (water solubility, critical micellar concentration and surface tension) and in oil/water systems (interfacial tension against model oil and ternary phase behavior). Their hydrophilicities have been determined thanks to the PIT-slope method and compared to the ones of standard surfactants with linear alkyl chains, in order to distinguish the contributions of the sugar polar heads and of the branched hexahydrofarnesyl lipophilic chain. This novel class of surfactants combines the properties of sugar-based surfactants (low sensitivity to temperature and salinity, ability to form Winsor III microemulsion systems over a wide range of salinity), along with specificities linked to the branched alkyl chain (lower Krafft temperature, low surface tension). The novelty of this work lies in the valorization of an original by-product into new sugar-based surfactants presenting effective properties.![]()
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Affiliation(s)
| | - Julie Aguilhon
- Total Raffinage Chimie
- Biofuels Division
- 92400 Courbevoie
- France
| | - Henri Strub
- Total Raffinage Chimie
- Biofuels Division
- 92400 Courbevoie
- France
| | - Valérie Molinier
- Total Exploration Production
- Pôle d’Etudes et de Recherche de Lacq
- 64170 Lacq
- France
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10
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Nowicki J, Mościpan M, Nowakowska‐Bogdan E, Woch J. Micellar Catalysis in Fischer Glycosidation: En Route to Diverse Functional Glycosides. ChemistrySelect 2019. [DOI: 10.1002/slct.201902016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Janusz Nowicki
- ŁUKASIEWICZ Research Network -Institute of Heavy Organic Synthesis “Blachownia” Energetyków 9 47225 Kędzierzyn-Koźle Poland
| | - Małgorzata Mościpan
- ŁUKASIEWICZ Research Network -Institute of Heavy Organic Synthesis “Blachownia” Energetyków 9 47225 Kędzierzyn-Koźle Poland
| | - Ewa Nowakowska‐Bogdan
- ŁUKASIEWICZ Research Network -Institute of Heavy Organic Synthesis “Blachownia” Energetyków 9 47225 Kędzierzyn-Koźle Poland
| | - Julia Woch
- ŁUKASIEWICZ Research Network -Institute of Heavy Organic Synthesis “Blachownia” Energetyków 9 47225 Kędzierzyn-Koźle Poland
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11
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Goh EW, Heidelberg T, Duali Hussen RS, Salman AA. Imidazolium-Linked Azido-Functionalized Guerbet Glycosides: Multifunctional Surfactants for Biofunctionalization of Vesicles. ACS OMEGA 2019; 4:17039-17047. [PMID: 31646251 PMCID: PMC6796913 DOI: 10.1021/acsomega.9b02809] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 09/13/2019] [Indexed: 06/10/2023]
Abstract
Aiming for glycolipid-based vesicles for targeted drug delivery, cationic Guerbet glycosides with spacered click functionality were designed and synthesized. The cationic charge promoted the distribution of the glycolipids during the formulation, thereby leading to homogeneously small vesicles. The positive surface charge of the vesicles stabilizes them against unwanted fusion and promotes interactions of the drug carriers with typical negative charge-dominated target cells. High bioconjugation potential of the functionalized glycolipids based on the copper-catalyzed azide alkyne cycloaddition makes them highly valuable components for targeted drug delivery systems.
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12
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Zahid NI, Ji L, Khyasudeen MF, Friedrich A, Hashim R, Marder TB, Abou-Zied OK. Evidence of Increased Hydrophobicity and Dynamics inside the Tail Region of Glycolipid Self-Assemblies Using 2- n-Alkyl-Pyrene Derivatives to Probe Different Locations. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:9584-9592. [PMID: 31287700 DOI: 10.1021/acs.langmuir.9b01767] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
New designer biofluorophores are being increasingly used in the investigation of complex cellular processes. In this study, we utilized new derivatives of pyrene (Py), i.e., 2-n-alkyl-pyrenes (Py-C4 and Py-C8), in order to probe different regions inside the hydrophobic tail of n-dodecyl β-d-maltoside (βMal-C12) in two different phases (cubic ↔ lamellar). Although the sensitivity to the local environment is reduced compared to that of Py, attaching C4 and C8 at the 2-position of Py can provide a possible means to probe the local hydrophobicity in different parts of the tail region. The absence of excimer fluorescence and the ratio of the vibronic fluorescence peak intensities (I1/I3) in a lipid environment indicate the existence of Py as monomers in the hydrophobic region, similar to hydrophobic solvation, yet close to the headgroup region. When Py is replaced by Py-C4 and Py-C8, there is a small increase in hydrophobicity (reduction in I1/I3) as the Py moiety is pulled deeper inside the tail region of both cubic and lamellar phases. The larger space of the tail region in the lamellar phase is reflected as more local hydrophobicity measured by the probes which can penetrate deep inside, whereas the curved structure of the cubic phase limits the available space for the probes. Three fluorescence lifetime components were measured in lipid, indicating the heterogeneous nature of the hydrophobic region. In the lamellar phase, a large reduction in the average lifetime value, led by the long decay component, was measured for Py-C4 (reduction by 25%) and Py-C8 (45%) compared to that of the parent Py. This observation suggests the presence of a mechanism of interaction more collisional than static between the Py moiety and the tail region of the bilayer unit due to the ample space provided by the lamellar phase as the probe is buried deeper inside the hydrophobic region. A much smaller effect was observed in the cubic phase and was correlated with the tight environment around the probes, which stems from the increased curvature of the cubic phase. The current results provide a deeper understanding of the hydrophobic region during phase transition of lipid self-assembly which is important for better control during the process of membrane-protein crystallization.
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Affiliation(s)
- N Idayu Zahid
- Department of Chemistry, Faculty of Science , Sultan Qaboos University , P.O. Box 36, Postal Code 123 , Muscat , Sultanate of Oman
- Centre for Fundamental and Frontier Sciences in Nanostructure Self-Assembly, Department of Chemistry, Faculty of Science , University of Malaya , 50603 Kuala Lumpur , Malaysia
| | - Lei Ji
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron , Julius-Maximilians-Universität Würzburg , Am Hubland, 97074 Würzburg , Germany
| | - M Faisal Khyasudeen
- Department of Chemistry, Faculty of Science , Sultan Qaboos University , P.O. Box 36, Postal Code 123 , Muscat , Sultanate of Oman
- Centre for Fundamental and Frontier Sciences in Nanostructure Self-Assembly, Department of Chemistry, Faculty of Science , University of Malaya , 50603 Kuala Lumpur , Malaysia
| | - Alexandra Friedrich
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron , Julius-Maximilians-Universität Würzburg , Am Hubland, 97074 Würzburg , Germany
| | - Rauzah Hashim
- Centre for Fundamental and Frontier Sciences in Nanostructure Self-Assembly, Department of Chemistry, Faculty of Science , University of Malaya , 50603 Kuala Lumpur , Malaysia
| | - Todd B Marder
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron , Julius-Maximilians-Universität Würzburg , Am Hubland, 97074 Würzburg , Germany
| | - Osama K Abou-Zied
- Department of Chemistry, Faculty of Science , Sultan Qaboos University , P.O. Box 36, Postal Code 123 , Muscat , Sultanate of Oman
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13
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Ishak KA, Zahid NI, Velayutham TS, Annuar MSM, Hashim R. Effects of lipid packing and intermolecular hydrogen bond on thermotropic phase transition of stearyl glucoside. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.02.075] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Li Z, Chen G, Chen L, Zhang Y, Dai Z. Solution Properties of Alkyl β‐D‐Maltosides. J SURFACTANTS DETERG 2019. [DOI: 10.1002/jsde.12281] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Zhencao Li
- College of Chemistry, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of EducationXiangtan University Xiangtan, 411105 Hunan People's Republic of China Republic of China
| | - Guoyong Chen
- College of Chemistry, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of EducationXiangtan University Xiangtan, 411105 Hunan People's Republic of China Republic of China
| | - Langqiu Chen
- College of Chemistry, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of EducationXiangtan University Xiangtan, 411105 Hunan People's Republic of China Republic of China
| | - Yanhua Zhang
- College of Chemistry, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of EducationXiangtan University Xiangtan, 411105 Hunan People's Republic of China Republic of China
| | - Zhiyong Dai
- Ausnutria Dairy (China) Co. Ltd. Changsha, 410005 Hunan People's Republic of China
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15
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Ogawa S, Honda K, Tsubomura T, Totani K, Takahashi I, Hara S. Physicochemical characterization of 6-O-acyl trehalose fatty acid monoesters in desiccated system. Chem Phys Lipids 2018; 216:80-90. [DOI: 10.1016/j.chemphyslip.2018.09.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 09/10/2018] [Accepted: 09/19/2018] [Indexed: 10/28/2022]
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16
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Tabandeh M, Goh EW, Salman AA, Heidelberg T, Duali Hussen RS. Functionalized glycolipids for potential bioconjugation of vesicles. Carbohydr Res 2018; 469:14-22. [PMID: 30196011 DOI: 10.1016/j.carres.2018.08.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 08/28/2018] [Accepted: 08/28/2018] [Indexed: 12/21/2022]
Abstract
Two azide-terminated oligoethylene oxide spacered glycolipids have been synthesized, and their assembly behavior has been studied in comparison to the corresponding base surfactants. The results suggest potential of the Guerbet lactoside-based compound for targeted drug delivery, while a coiling of the ethylene oxide linker disfavors the application of the glucoside.
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Affiliation(s)
- Mojtaba Tabandeh
- Chemistry Department, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Ean Wai Goh
- Chemistry Department, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Abbas Abdulameer Salman
- Chemistry Department, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia; College of Pathological Analysis Technology, Al-Bayan University, Bhagdad, Iraq
| | - Thorsten Heidelberg
- Chemistry Department, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia.
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17
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Saari NAN, Mislan AA, Hashim R, Zahid NI. Self-Assembly, Thermotropic, and Lyotropic Phase Behavior of Guerbet Branched-Chain Maltosides. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:8962-8974. [PMID: 29999321 DOI: 10.1021/acs.langmuir.8b01899] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Five synthetic β-d-maltosides derived from Guerbet branched alcohols, whose total hydrocarbon chain length ranged from C8 to C24, were synthesized to a high anomeric purity, and their thermal properties, liquid-crystalline phases, and structures were characterized using differential scanning calorimetry, optical polarizing microscopy, and small-angle X-ray scattering. Thermal investigations of all anhydrous Guerbet maltosides showed that they do not form solid crystals but undergo a glass transition upon temperature change in the range of 35-53 °C. The glassy crystalline structure turns into the liquid-crystalline structure upon heating or addition of water. In thermotropic studies, the lamellar phase formation is prominent in shorter-chain-length analogues, whereas the longer-chain compounds exhibit a more frustrated form of self-assembly in the formation of a metastable state, polymorphism, and inverse bicontinuous cubic structure ( Ia3 d). The excess water conditions show that the phase formation is dominated by the lamellar phase for the longer-chain compounds. Normal micellar solution was observed in the shortest-chain-length maltosides because of the enlargement of hydrated maltose headgroups. The self-assembly of both dry and fully hydrated Guerbet maltosides, which exhibited glass-forming abilities and showed surface activity and also the ability to act as membrane-stabilizing compounds, makes them ideal candidates for practical use in industry as well as biomedical research.
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Affiliation(s)
- N A Nabila Saari
- Centre for Fundamental and Frontier Sciences in Nanostructure Self-Assembly, Department of Chemistry, Faculty of Science , University of Malaya , 50603 Kuala Lumpur , Malaysia
| | - Azwa Amanina Mislan
- Centre for Fundamental and Frontier Sciences in Nanostructure Self-Assembly, Department of Chemistry, Faculty of Science , University of Malaya , 50603 Kuala Lumpur , Malaysia
| | - Rauzah Hashim
- Centre for Fundamental and Frontier Sciences in Nanostructure Self-Assembly, Department of Chemistry, Faculty of Science , University of Malaya , 50603 Kuala Lumpur , Malaysia
| | - N Idayu Zahid
- Centre for Fundamental and Frontier Sciences in Nanostructure Self-Assembly, Department of Chemistry, Faculty of Science , University of Malaya , 50603 Kuala Lumpur , Malaysia
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18
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Hashim R, Zahid NI, Velayutham TS, Aripin NFK, Ogawa S, Sugimura A. Dry Thermotropic Glycolipid Self-Assembly:A Review. J Oleo Sci 2018; 67:651-668. [PMID: 29760332 DOI: 10.5650/jos.ess17261] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Also recognized as carbohydrate liquid crystals, glycolipids are amphiphiles whose basic unit comprises of a sugar group attached to an alkyl chain. Glycolipids are amphitropic, which means these materials form liquid crystal self-assemblies when dry (thermotropic) as well as when dissolved in solvents (lyotropic/surfactants) such as water. Many glycolipids are also naturally derived since these can be found in cell membranes. Their membrane and surfactant functions are largely understood through their lyotropic properties. While glycolipids are expected to play major roles as eco-friendly surfactants in the global surfactant market, their usefulness as thermotropic liquid crystal material is, to date, unknown, due to relatively lack of research performed and data reported in the literature. Understandably since glycolipids are hygroscopic with many hydroxy groups, removing the last trace water is very challenging. In recent time, with careful lyophilization and more consistent characterization technique, some researchers have attempted serious studies into "dry" or anhydrous glycolipids. Motivated by possible developments of novel thermotropic applications, some results from these studies also provide surprising new understanding to support conventional wisdom of the lyotropic systems. Here we review the dry state of glycosides, a family of glycolipids whose sugar headgroup is linked to the lipid chain via a glycosidic oxygen linker. The structure property relationship of both linear and anhydrous Guerbet glycosides will be examined. In particular, how the variation of sugar stereochemistry (e.g. anomer vs. epimer), the chain length and chain branching affect the formation of thermotropic liquid crystals phases, which not only located under equilibrium but also far from equilibrium conditions (glassy phase) are scrutinized. The dry glycolipid assembly has been subjected to electric and magnetic fields and the results show interesting behaviors including a possible transient current generation.
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Affiliation(s)
- Rauzah Hashim
- Centre for Fundamental and Frontier Sciences in Nanostructure Self-Assembly, Department of Chemistry, Faculty of Science, University of Malaya
| | - N Idayu Zahid
- Centre for Fundamental and Frontier Sciences in Nanostructure Self-Assembly, Department of Chemistry, Faculty of Science, University of Malaya
| | - T S Velayutham
- Low Dimensional Materials Research Center, Department of Physics, Faculty of Science, University of Malaya
| | | | | | - Akihiko Sugimura
- School of Information Systems Engineering, Osaka Sangyo University
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Tabandeh M, Salman AA, Goh EW, Heidelberg T, Hussen RSD. Renewable resources-based approach to biantennary glycolipids. Chem Phys Lipids 2018; 212:111-119. [PMID: 29409839 DOI: 10.1016/j.chemphyslip.2018.01.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 01/19/2018] [Accepted: 01/29/2018] [Indexed: 02/07/2023]
Abstract
A new synthesis approach towards biantennary lipids of Guerbet glycoside type was developed based on oleic acid as sustainable resource. Functionalization of the double bond provided access to primary alcohols with α-branched C19-skeleton. Formulation studies with corresponding lactosides indicated formation of vesicles with high assembly stability. A relatively narrow bimodal size distribution of the latter, which turns into a narrow unimodal distribution of small vesicles upon addition of an ionic cosurfactant, suggests potential for a vesicular drug delivery system.
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Affiliation(s)
- Mojtaba Tabandeh
- Chemistry Department, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Abbas Abdulameer Salman
- Chemistry Department, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Ean Wai Goh
- Chemistry Department, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Thorsten Heidelberg
- Chemistry Department, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia.
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21
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Han NS, Heidelberg T, Salman AA. Spacer effect on triazole-linked sugar-based surfactants. J DISPER SCI TECHNOL 2016. [DOI: 10.1080/01932691.2016.1144513] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Ng Su Han
- Chemistry Department, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Thorsten Heidelberg
- Chemistry Department, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
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Lukic M, Pantelic I, Savic S. An Overview of Novel Surfactants for Formulation of Cosmetics with Certain Emphasis on Acidic Active Substances. TENSIDE SURFACT DET 2016. [DOI: 10.3139/113.110405] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Abstract
Novel surfactants which are nowadays available for incorporation into various formulations of personal care and cosmetic products are numerous, implying a permanent need for their classification. This overview provides essential information relating to synthesis, basic physicochemical characteristics, application and other relevant data on surfactants currently used in cosmetic products. In the second part of the paper an outline of acidic active substances with significant application in cosmetic products is given, as well as the problems that arise during preparation/manufacture of the containing formulations, accompanied with the review of scientific publications and other available reliable data dealing with the incorporation of these actives in the cosmetic formulations stabilized with novel (mainly natural) surfactants.
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Garidel P, Kaconis Y, Heinbockel L, Wulf M, Gerber S, Munk A, Vill V, Brandenburg K. Self-Organisation, Thermotropic and Lyotropic Properties of Glycolipids Related to their Biological Implications. Open Biochem J 2015; 9:49-72. [PMID: 26464591 PMCID: PMC4598379 DOI: 10.2174/1874091x01509010049] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 02/27/2014] [Accepted: 03/18/2014] [Indexed: 11/22/2022] Open
Abstract
Glycolipids are amphiphilic molecules which bear an oligo- or polysaccharide as hydrophilic head group and hydrocarbon chains in varying numbers and lengths as hydrophobic part. They play an important role in life science as well as in material science. Their biological and physiological functions are quite diverse, ranging from mediators of cell-cell recognition processes, constituents of membrane domains or as membrane-forming units. Glycolipids form an exceptional class of liquid-crystal mesophases due to the fact that their self-organisation obeys more complex rules as compared to classical monophilic liquid-crystals. Like other amphiphiles, the supra-molecular structures formed by glycolipids are driven by their chemical structure; however, the details of this process are still hardly understood. Based on the synthesis of specific glycolipids with a clearly defined chemical structure, e.g., type and length of the sugar head group, acyl chain linkage, substitution pattern, hydrocarbon chain lengths and saturation, combined with a profound physico-chemical characterisation of the formed mesophases, the principles of the organisation in different aggregate structures of the glycolipids can be obtained. The importance of the observed and formed phases and their properties are discussed with respect to their biological and physiological relevance. The presented data describe briefly the strategies used for the synthesis of the used glycolipids. The main focus, however, lies on the thermotropic as well as lyotropic characterisation of the self-organised structures and formed phases based on physico-chemical and biophysical methods linked to their potential biological implications and relevance.
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Affiliation(s)
- Patrick Garidel
- Physikalische Chemie, Martin-Luther-Universität Halle/Wittenberg, Mühlpforte 1, D-06108 Halle/Saale, Germany
| | - Yani Kaconis
- Forschungszentrum Borstel, Leibniz-Zentrum für Medizin und Biowissenschaften, Parkallee 1-40, D-23845 Borstel, Germany
| | - Lena Heinbockel
- Forschungszentrum Borstel, Leibniz-Zentrum für Medizin und Biowissenschaften, Parkallee 1-40, D-23845 Borstel, Germany
| | - Matthias Wulf
- Institut für Organische Chemie, Universität Hamburg, Martin-Luther-King-Platz 6, D-20146 Hamburg, Germany
| | - Sven Gerber
- Institut für Organische Chemie, Universität Hamburg, Martin-Luther-King-Platz 6, D-20146 Hamburg, Germany
| | - Ariane Munk
- Institut für Organische Chemie, Universität Hamburg, Martin-Luther-King-Platz 6, D-20146 Hamburg, Germany
| | - Volkmar Vill
- Institut für Organische Chemie, Universität Hamburg, Martin-Luther-King-Platz 6, D-20146 Hamburg, Germany
| | - Klaus Brandenburg
- Forschungszentrum Borstel, Leibniz-Zentrum für Medizin und Biowissenschaften, Parkallee 1-40, D-23845 Borstel, Germany
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The Effects of Branched-Tail Structure of Surfactant on the Phase Behaviour of Alkylglucoside/Water/n-Octane Ternary System. ACTA ACUST UNITED AC 2015. [DOI: 10.4028/www.scientific.net/amm.754-755.944] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two glycolipids were synthesized to study the lyotropic behavior of these glycolipids in alkylglucoside/water/n-octane ternary system. These glycolipids have been distinguished based on the structure of alkyl chain (branched-alkyl chain and straight alkyl chain). 2-octyl-β-D-glucopyranoside (2-OG) and 2-ethylhexyl-β-D-glucopyranoside (2-EHG) were used as surfactants to perform two types of phase diagram. Phase behaviours investigated were phase behaviours of 2-OG/n-octane/water ternary system and 2-EHG/n-octane/water ternary system. Small angle x-ray (SAXS) and optical polarizing microscope were used as the instruments to study the lyotropic phase behaviour of these two surfactans in ternary phase diagram. Study the effect of branched-tail structure on the phase behaviour of glycolipids in ternary system is one of strategy to derive the structure-property relationship. For this purpose, 2-OG and 2-EHG were used as surfactants in the same ternary system. The phase diagram of 2-OG/water/n-octane ternary system showed rectangular ribbon phase and lamellar phase. The phase diagram of 2-EHG/water/n-octane ternary system showed wide region of lamellar lyotropic liquid crystalline in different ratio of weight composition. In 2-OG/water/n-octane ternary system, as more surfactant was added to the system, the interlayer spacing, d1 and scattering angle, a value increased, whereas in 2-EHG/water/n-octane ternary system, the d1 and a value decreased.
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26
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Nugraha R, Finlay JA, Hill S, Fyrner T, Yandi W, Callow ME, Callow JA, Ederth T. Antifouling properties of oligo(lactose)-based self-assembled monolayers. BIOFOULING 2015; 31:123-134. [PMID: 25629533 DOI: 10.1080/08927014.2014.1001841] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The antifouling (AF) properties of oligo(lactose)-based self-assembled monolayers (SAMs), using four different proteins, zoospores of the green alga Ulva linza and cells of the diatom Navicula incerta, were investigated. The SAM-forming alkylthiols, which contained 1, 2 or 3 lactose units, showed significant variation in AF properties, with no differences in wettability. Non-specific adsorption of albumin and pepsin was low on all surfaces. Adsorption of lysozyme and fibrinogen decreased with increasing number of lactose units in the SAM, in agreement with the generally observed phenomenon that thicker hydrated layers provide higher barriers to protein adsorption. Settlement of spores of U. linza followed an opposite trend, being greater on the bulkier, more hydrated SAMs. These SAMs are more ordered for the larger saccharide units, and it is therefore hypothesized that the degree of order, and differences in crystallinity or stiffness between the surfaces, is an important parameter regulating spore settlement on these surfaces.
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Affiliation(s)
- Roni Nugraha
- a Division of Molecular Physics , IFM, Linköping University , Linköping , Sweden
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27
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Velayutham TS, Ng BK, Gan WC, Majid WHA, Hashim R, Zahid NI, Chaiprapa J. Phase sensitive molecular dynamics of self-assembly glycolipid thin films: A dielectric spectroscopy investigation. J Chem Phys 2014; 141:085101. [DOI: 10.1063/1.4893873] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Bubnov A, Kašpar M, Hamplová V, Dawin U, Giesselmann F. Thermotropic and lyotropic behaviour of new liquid-crystalline materials with different hydrophilic groups: synthesis and mesomorphic properties. Beilstein J Org Chem 2013; 9:425-36. [PMID: 23504455 PMCID: PMC3596015 DOI: 10.3762/bjoc.9.45] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Accepted: 02/03/2013] [Indexed: 11/23/2022] Open
Abstract
Several new calamitic liquid-crystalline (LC) materials with flexible hydrophilic chains, namely either hydroxy groups or ethylene glycol units, or both types together, have been synthesized in order to look for new functional LC materials exhibiting both, thermotropic and lyotropic behaviour. Such materials are of high potential interest for challenging issues such as the self-organization of carbon nanotubes or various nanoparticles. Thermotropic mesomorphic properties have been studied by using polarizing optical microscopy, differential scanning calorimetry and X-ray scattering. Four of these nonchiral and chiral materials exhibit nematic and chiral nematic phases, respectively. For some molecular structures, smectic phases have also been detected. A contact sample of one of the prepared compounds with diethylene glycol clearly shows the lyotropic behaviour; namely a lamellar phase was observed. The relationship between the molecular structure and mesomorphic properties of these new LCs with hydrophilic chains is discussed.
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Affiliation(s)
- Alexej Bubnov
- Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 182 21 Prague, Czech Republic
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29
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Aripin NFK, Hashim R, Heidelberg T, Kweon DK, Park HJ. Effect of vesicle's membrane packing behaviour on skin penetration of model lipophilic drug. J Microencapsul 2012; 30:265-73. [DOI: 10.3109/02652048.2012.720723] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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30
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Preparation of vesicle drug carrier from palm oil- and palm kernel oil-based glycosides. Colloids Surf B Biointerfaces 2012; 95:144-53. [DOI: 10.1016/j.colsurfb.2012.02.032] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2011] [Revised: 02/21/2012] [Accepted: 02/21/2012] [Indexed: 10/28/2022]
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31
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Cheng QY, Zhou D, Gao Y, Chen Q, Zhang Z, Han BH. Supramolecular self-assembly induced graphene oxide based hydrogels and organogels. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:3005-3010. [PMID: 22243124 DOI: 10.1021/la204558f] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We demonstrate the construction of three-dimensional graphene oxide based gel networks through the self-assembly of a series of amphiphilic molecules, which possess a polar carbohydrate headgroup attached to a nonpolar pyrene group. The gelation process can occur in both aqueous and organic solutions and be influenced by the gelators' molecular structure. The driving forces for the gelation process were determined as π-π stacking and hydrogen bonding interaction by using fluorescence and infrared spectroscopies. Rheometry was used to investigate the mechanical properties of the hydrogels and the organogels. The hydrogel was investigated to be applied to remove dye from aqueous solution.
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Affiliation(s)
- Qian-Yi Cheng
- National Center for Nanoscience and Technology, Beijing 100190, China
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32
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Clemente MJ, Fitremann J, Mauzac M, Serrano JL, Oriol L. Synthesis and characterization of maltose-based amphiphiles as supramolecular hydrogelators. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:15236-15247. [PMID: 22124333 DOI: 10.1021/la203447e] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Low molecular mass amphiphilic glycolipids have been prepared by linking a maltose polar head and a hydrophobic linear chain either by amidation or copper(I)-catalyzed azide-alkyne [3 + 2] cycloaddition. The liquid crystalline properties of these amphiphilic materials have been characterized. The influence of the chemical structure of these glycolipids on the gelation properties in water has also been studied. Glycolipids obtained by the click coupling of the two components give rise to stable hydrogels at room temperature. The fibrillar structure of supramolecular hydrogels obtained by the self-assembly of these gelators have been characterized by electron microscopy. Fibers showed some torsion, which could be related with a chiral supramolecular arrangement of amphiphiles, as confirmed by circular dichroism (CD). The sol-gel transition temperature was also determined by differential scanning calorimetry (DSC) and NMR.
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Affiliation(s)
- María J Clemente
- Instituto de Ciencia de Materiales de Aragón (ICMA), Universidad de Zaragoza-CSIC, Dpt. Química Orgánica, Facultad de Ciencias, Pedro Cerbuna 12, 50009, Zaragoza, Spain
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Hashim R, Mirzadeh SM, Heidelberg T, Minamikawa H, Yoshiaki T, Sugimura A. A reevaluation of the epimeric and anomeric relationship of glucosides and galactosides in thermotropic liquid crystal self-assemblies. Carbohydr Res 2011; 346:2948-56. [DOI: 10.1016/j.carres.2011.10.032] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2011] [Revised: 10/18/2011] [Accepted: 10/20/2011] [Indexed: 11/25/2022]
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34
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Tien YC, Liao JC, Chiu CS, Huang TH, Huang CY, Chang WT, Peng WH. Esculetin ameliorates carbon tetrachloride-mediated hepatic apoptosis in rats. Int J Mol Sci 2011; 12:4053-67. [PMID: 21747724 PMCID: PMC3131608 DOI: 10.3390/ijms12064053] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2011] [Revised: 05/29/2011] [Accepted: 06/09/2011] [Indexed: 12/13/2022] Open
Abstract
Esculetin (ESC) is a coumarin that is present in several plants such as Fraxinus rhynchophylla and Artemisia capillaris. Our previous study found that FR ethanol extract (FREtOH) significantly ameliorated rats’ liver function. This study was intended to investigate the protective mechanism of ESC in hepatic apoptosis in rats induced by carbon tetrachloride. Rat hepatic apoptosis was induced by oral administration of CCl4. All rats were administered orally with CCl4 (20%, 0.5 mL/rat) twice a week for 8 weeks. Rats in the ESC groups were treated daily with ESC, and silymarin group were treated daily with silymarin. Serum alanine aminotransferase (ALT), aspartate aminotransferase (AST) as well as the activities of the anti-oxidative enzymes glutathione peroxidase (GPx), superoxide dismutase (SOD), and catalase in the liver were measured. In addition, expression of liver apoptosis proteins and anti-apoptotic proteins were detected. ESC (100, 500 mg/kg) significantly reduced the elevated activities of serum ALT and AST caused by CCl4 and significantly increased the activities of catalase, GPx and SOD. Furthermore, ESC (100, 500 mg/kg) significantly decreased the levels of the proapoptotic proteins (t-Bid, Bak and Bad) and significantly increased the levels of the anti-apoptotic proteins (Bcl-2 and Bcl-xL). ESC inhibited the release of cytochrome c from mitochondria. In addition, the levels of activated caspase-9 and activated caspase-3 were significantly decreased in rats treated with ESC than those in rats treated with CCl4 alone. ESC significantly reduced CCl4-induced hepatic apoptosis in rats.
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Affiliation(s)
- Yun-Chen Tien
- School of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Pharmacy, China Medical University, 91 Hsueh-Shih road, Taichung 404, Taiwan; E-Mails: (Y.-C.T.); (C.-S.C.); (W.-T.C.)
| | - Jung-Chun Liao
- School of Pharmacy, College of Pharmacy, China Medical University, 91 Hsueh-Shih road, Taichung, Taichung 404, Taiwan; E-Mails: (J.-C.L.); (T.-H.H.)
| | - Chuan-Sung Chiu
- School of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Pharmacy, China Medical University, 91 Hsueh-Shih road, Taichung 404, Taiwan; E-Mails: (Y.-C.T.); (C.-S.C.); (W.-T.C.)
- Hsin Sheng College of Medical Care and Management, Taoyuan, 325, Taiwan
| | - Tai-Hung Huang
- School of Pharmacy, College of Pharmacy, China Medical University, 91 Hsueh-Shih road, Taichung, Taichung 404, Taiwan; E-Mails: (J.-C.L.); (T.-H.H.)
| | - Chih-Yang Huang
- Graduate Institute of Basic Medical Science, China Medical University, 91, Hsueh-Shih road, Taichung 404, Taiwan; E-Mail:
| | - Wen-Te Chang
- School of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Pharmacy, China Medical University, 91 Hsueh-Shih road, Taichung 404, Taiwan; E-Mails: (Y.-C.T.); (C.-S.C.); (W.-T.C.)
| | - Wen-Huang Peng
- School of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Pharmacy, China Medical University, 91 Hsueh-Shih road, Taichung 404, Taiwan; E-Mails: (Y.-C.T.); (C.-S.C.); (W.-T.C.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +886-4-2205-3366; Fax: +886-4-2407-5683
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Savić S, Tamburić S, Savić MM. From conventional towards new – natural surfactants in drug delivery systems design: current status and perspectives. Expert Opin Drug Deliv 2010; 7:353-69. [DOI: 10.1517/17425240903535833] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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36
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Nainggolan I, Radiman S, Hamzah AS, Hashim R. The effect of the head group on branched-alkyl chain surfactants in glycolipid/n-octane/water ternary system. Colloids Surf B Biointerfaces 2009; 73:84-91. [DOI: 10.1016/j.colsurfb.2009.05.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2009] [Revised: 04/27/2009] [Accepted: 05/01/2009] [Indexed: 10/20/2022]
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37
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Gerber S, Wulf M, Milkereit G, Vill V, Howe J, Roessle M, Garidel P, Gutsmann T, Brandenburg K. Phase diagrams of monoacylated amide-linked disaccharide glycolipids. Chem Phys Lipids 2009; 158:118-30. [DOI: 10.1016/j.chemphyslip.2009.01.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2008] [Revised: 01/13/2009] [Accepted: 01/13/2009] [Indexed: 11/27/2022]
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Howe J, Garidel P, Wulf M, Gerber S, Milkereit G, Vill V, Roessle M, Brandenburg K. Structural polymorphism of hydrated monoacylated maltose glycolipids. Chem Phys Lipids 2008; 155:31-7. [PMID: 18671955 DOI: 10.1016/j.chemphyslip.2008.07.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2008] [Revised: 06/30/2008] [Accepted: 07/01/2008] [Indexed: 11/29/2022]
Abstract
The physico-chemical properties of three fully hydrated monoacyl maltoside glycolipids were investigated with Fourier-transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC) and small-angle X-ray scattering (SAXS). The different synthesized maltoside glycoconjugates vary in the length and saturation of the fatty acid moiety, whereas the constant head group region contains a beta-linked maltose with a OC(2)-NH spacer. The compounds with saturated acyl chains showed a complex pattern of temperature-dependent behaviour, regarding the adopted three-dimensional aggregate structure of the molecules and the main phase transition from the gel to liquid crystalline phase of the acyl chains. A substitution of the saturated acyl chain with an unsaturated acyl chain led to a complete change of the structural preferences, from a high ordered stacking of the bilayers to an unilamellar arrangement of completely disordered and fluid membranes. The presence of the NH group in the spacer, compared to the compounds lacking the NH group allows the formation of a hydrogen bonding network, which influences the observed phase properties. The results of these studies of the hydrated monoacylated maltose glycolipids are discussed in relation to the thermotropic phase properties of the pure compounds in the absence of water.
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Affiliation(s)
- Jörg Howe
- Forschungszentrum Borstel, LG Biophysik, Parkallee 10, D-23845 Borstel, Germany
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40
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Garidel P, Howe J, Milkereit G, Rössle M, Linser S, Sven Gerber, Willumeit R, Gutsmann T, Vill V, Brandenburg K. Structural polymorphism of hydrated ether-linked dimyristyl maltoside and melibioside. Chem Phys Lipids 2008; 151:18-29. [DOI: 10.1016/j.chemphyslip.2007.09.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2007] [Revised: 08/20/2007] [Accepted: 09/19/2007] [Indexed: 11/28/2022]
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41
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Milkereit G, Garamus VM, Gerber S, Willumeit R. Self-assembly properties of alkyloxyethyl beta-glycosides with different types of carbohydrate headgroups. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2007; 23:11488-11495. [PMID: 17924677 DOI: 10.1021/la7021775] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The effect of alkyl chain length on micelle formation in aqueous solutions of synthetic alkyloxyethyl glycosides containing an ethyl spacer with different conformations of the disaccharide headgroups was investigated. The molecular shape was systematically changed from a wedge-shaped to a rodlike geometry by changing the type of carbohydrate headgroup. The lipophilic part consists of dodecyl or tetradecyl chains. The adsorption at the liquid-air interface was investigated by surface tension measurements. The micellar phase region (L1) was studied using small-angle neutron scattering. We have observed a strong influence of the linkage between the sugar moieties in the disaccharide headgroup and the ethyl spacer on the micellar structure: the transformation from spherical to disklike aggregates was observed for compounds with a rodlike shape, but only spherical aggregates were formed by the wedge-shaped molecules.
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Affiliation(s)
- Götz Milkereit
- GKSS Research Centre, Max-Planck-Str. 1, 21502 Geesthacht, Germany
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42
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Imura T, Hikosaka Y, Worakitkanchanakul W, Sakai H, Abe M, Konishi M, Minamikawa H, Kitamoto D. Aqueous-phase behavior of natural glycolipid biosurfactant mannosylerythritol lipid A: sponge, cubic, and lamellar phases. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2007; 23:1659-63. [PMID: 17279642 DOI: 10.1021/la0620814] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The aqueous-phase behavior of mannosylerythritol lipid A (MEL-A), which is a glycolipid biosurfactant produced from vegetable oils by yeast strains of the genus Pseudozyma, was investigated using polarized optical microscopy, small-angle X-ray scattering (SAXS), and differential scanning calorimetry (DSC). MEL-A was found to self-assemble into a variety of distinctive lyotropic liquid crystals including sponge (L3), bicontinuous cubic (V2), and lamella (Lalpha) phases. On the basis of SAXS measurements, we determined the structure of the liquid crystals. The estimated lattice constant for Lalpha was 3.58 nm. DSC measurement revealed that the phase transition enthalpies from the liquid crystal to the fluid isotropic phase were in the range of 0.22-0.44 kJ/mol. Although the present MEL-A phase diagram closely resembled that obtained from relatively hydrophobic poly(oxyethylene) or fluorinated surfactants, the MEL-A L3 region was spread considerably over a wide temperature range (20-65 degrees C) compared to L3 of those surfactants: this is probably due to the unique structure which is molecularly engineered by microorganisms. In this paper, we clarify the aqueous phase diagram of the natural glycolipid biosurfactant MEL-A, and we suggest that the obtained lyotropic crystals are potentially useful as novel nanostructured biomaterials.
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Affiliation(s)
- Tomohiro Imura
- Research Institute for Innovation in Sustainable Chemistry and Nanoarchitectonics Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5-2, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
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Molinier V, Kouwer PJJ, Fitremann J, Bouchu A, Mackenzie G, Queneau Y, Goodby JW. Shape Dependence in the Formation of Condensed Phases Exhibited by Disubstituted Sucrose Esters. Chemistry 2007; 13:1763-75. [PMID: 17121395 DOI: 10.1002/chem.200600368] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We report on the self-organizing properties of sucrose esters that are di-(1',6', 1',6, and 6,6')-substituted with aliphatic chains of identical or different chain lengths and levels of saturation. For the materials possessing two saturated aliphatic chains, the compounds exhibited thermotropic lamellar smectic A phases. A remarkable new phase transition was observed for the di-octadecanoyl homologue in which one smectic A phase transformed into another with a continuous change in layer spacing, but with a discontinuous change in the correlation length. The incorporation of long cis-unsaturated chains led to increased cross-sectional areas of the chains relative to the sucrose head groups and, hence, columnar phases were observed.
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Affiliation(s)
- Valérie Molinier
- Laboratoire de Chimie Organique, UMR 5181 CNRS; Université Lyon 1, France
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44
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Milkereit G, Vill V. An Improved Synthetic Procedure for the Preparation of N‐Acyl (2‐aminoethyl)‐β‐d‐glycopyranoside Lipids and Characterization of Their Mesogenic Properties. J Carbohydr Chem 2007. [DOI: 10.1080/07328300601082385] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Götz Milkereit
- a Institute of Organic Chemistry, University of Hamburg , Hamburg, Germany
| | - Volkmar Vill
- a Institute of Organic Chemistry, University of Hamburg , Hamburg, Germany
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Molinier V, Kouwer PJJ, Fitremann J, Bouchu A, Mackenzie G, Queneau Y, Goodby JW. Self-Organizing Properties of Monosubstituted Sucrose Fatty Acid Esters: The Effects of Chain Length and Unsaturation. Chemistry 2006; 12:3547-57. [PMID: 16514679 DOI: 10.1002/chem.200500773] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Three families of mono-substituted sucrose fatty acid esters were prepared by enzymatic and classical synthetic procedures, and their self-assembly and self-organizational properties were investigated by thermal polarised light microscopy, differential scanning calorimetry and X-ray diffraction. The properties were evaluated as a function of the fatty acid chain length. For the lower homologues of the series columnar liquid-crystalline stacking structures were found, whereas for the higher homologues, lamellar phases predominated. A model for the columnar stacking arrangement, consisting of a unique arrangement of the molecules which could lead to the creation of multiple internal ion channels between the hydrophobic interior and the hydrophilic exterior of the columns, is suggested.
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Affiliation(s)
- Valérie Molinier
- Laboratoire de Chimie Organique, UMR 5181 CNRS-UCBL-INSA, Institut National des Sciences Appliquées de Lyon, Bât. J. Verne, 20 avenue A. Einstein, 69621 Villeurbanne Cedex, France
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Milkereit G, Garamus VM. Complex effect of ethyl branching on the supramolecular structure of a long chain neoglycolipid. Colloids Surf A Physicochem Eng Asp 2005. [DOI: 10.1016/j.colsurfa.2005.06.054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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47
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Ericsson CA, Ericsson LC, Ulvenlund S. Solid-state phase behaviour of dodecylglycosides. Carbohydr Res 2005; 340:1529-37. [PMID: 15882846 DOI: 10.1016/j.carres.2005.03.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2005] [Accepted: 03/31/2005] [Indexed: 10/25/2022]
Abstract
The solid-state phase behaviour of lyophilised n-dodecyl-beta-D-glucoside (beta-C(12)G(1)), n-dodecyl-beta-D-maltoside (beta-C(12)G(2)) and n-dodecyl-beta-D-maltotrioside (beta-C(12)G(3)) has been investigated by differential scanning calorimetry (DSC) and X-ray techniques. For beta-C(12)G(1), lyophilisation results in a formation of a crystalline anhydrate. The lamellar spacing (37 Angstroms) is consistent with an alkyl chain packing in which the chains are not interdigitated. At 80 degrees C, the material melts into a lamellar liquid crystal with a lamellar spacing of 32 Angstroms, which suggests that the non-interdigitated chain packing of the crystalline state is retained in the liquid crystal. In contrast, lyophilisation of beta-C(12)G(2) and beta-C(12)G(3) results in the formation of a glassy state, best described as a frozen version of the lamellar liquid crystal. For beta-C(12)G(2), the lamellar spacing in the glass and liquid crystal suggests interdigitation of the alkyl chains. The glass transition temperature was found to be 65 degrees C for beta-C(12)G(2) and 100 degrees C for beta-C(12)G(3), which compares favourably with the glass transition of the parent carbohydrates. A second crystalline modification of beta-C(12)G(1) was prepared by precipitation from an aqueous solution at temperatures below the Krafft point (38 degrees C). For this modification, the lamellar distance (24 Angstroms) is consistent with interdigitated alkyl chains. At 50 degrees C, the crystalline material melts into a liquid crystalline phase. The material also readily loses water and rapidly re-crystallises to the anhydrate. The amount of water lost upon drying is consistent with the idea that the material is a monohydrate of beta-C(12)G(1). The drying and re-crystallisation processes give rise to 'pre-transitions' in the DSC thermograms and illustrate the importance of careful control of water in any analysis of the phase behaviour of alkylglycosides.
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Affiliation(s)
- Caroline A Ericsson
- Department of Physical Chemistry 1, Centre of Chemistry and Chemical Engineering, Lund University, Sweden
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48
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Milkereit G, Gerber S, Brandenburg K, Morr M, Vill V. Synthesis and mesomorphic properties of glycosyl dialkyl- and diacyl-glycerols bearing saturated, unsaturated and methyl branched fatty acid and fatty alcohol chains. Chem Phys Lipids 2005; 135:1-14. [PMID: 15854621 DOI: 10.1016/j.chemphyslip.2005.01.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2004] [Revised: 01/13/2005] [Accepted: 01/14/2005] [Indexed: 10/25/2022]
Abstract
Glycosyl dialkyl- and diacyl-glycerols bearing saturated, unsaturated or chiral methyl branched chains in the tail and disaccharide and trisaccharide carbohydrate headgroups were synthesised. Standard procedures were used for the preparation of the educts and the glyco lipids: trichloracetimidate procedure for the preparation of long-chained compounds, glycosylation using the beta-peracetate and boron trifluoride etherate was successful for the preparation of lipids with a medium-alkyl chain length. Preparation of the ester was afforded in a multi-step synthesis according to published procedures. Thus, several lipids were synthesised in a few synthetic steps in good yields. The introduction of unsaturated or methyl branched chains lead to liquid crystallinity at ambient temperature, because these compounds will be used as model compounds for biological systems. The biophysical properties of these compounds will be reported in a following paper.
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Affiliation(s)
- Götz Milkereit
- Institute of Organic Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
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Milkereit G, Brandenburg K, Gerber S, Koch MHJ, Morr M, Andrä J, Seydel U, Vill V. Synthesis and mesomorphic properties of glycosyl dialkyl- and diacyl-glycerols bearing saturated, unsaturated and methyl branched fatty acid and fatty alcohol chains. Chem Phys Lipids 2005; 135:15-26. [PMID: 15854622 DOI: 10.1016/j.chemphyslip.2005.01.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2004] [Revised: 01/28/2005] [Accepted: 01/31/2005] [Indexed: 11/28/2022]
Abstract
The biophysical properties of a series of glycosyl dialkyl- and diacyl-glycerols bearing unsaturated or chiral methyl branched chains in the tail, and di- and trisaccharide carbohydrate headgroups are described. Thermotropism was investigated by polarising microscopy, the lyotropism was investigated by small angle X-ray diffraction and by the contact preparation method, and the gel to liquid crystalline phase transition by FT-IR-spectroscopy. The compounds displayed thermotropic Smectic A (SmA), cubic and columnar phases, whereas in the lyotropic phase diagram lamellar, hexagonal and cubic phases are found. The introduction of unsaturated or methyl branched chains leads to liquid crystallinity at ambient temperature. The difference between the 1,3-oleyl-glycerol maltoside and the corresponding 1,2-oleoyl-glycerol maltoside is small.
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Affiliation(s)
- Götz Milkereit
- Institute of Organic Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
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Milkereit G, Garamus VM, Veermans K, Willumeit R, Vill V. Structures of micelles formed by synthetic alkyl glycosides with unsaturated alkyl chains. J Colloid Interface Sci 2005; 284:704-13. [PMID: 15780314 DOI: 10.1016/j.jcis.2004.10.039] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2004] [Accepted: 10/20/2004] [Indexed: 11/29/2022]
Abstract
Three new alkyl glycosides with similar molecular structures (oleyl and oleoyl alkyl chains and various head groups: disaccharide, trisaccharide and disaccharide with an additional amidoethoxy spacer) were synthesized and their supramolecular structure in aqueous solution was investigated. Small angle neutron scattering, surface tension measurement and the contact preparation method were applied to get molecular structure-property relationships. Although the chemical structures differ only in small details, their CMC values, lyotropic phase behaviour, surface area per surfactant molecule in the micelle and at the liquid-air interface, and the size and shape of the micelles are very different. We have found three different types of aggregates: spherical, cylindrical and polymer-like micelles in dilute solutions.
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Affiliation(s)
- Götz Milkereit
- Institute of Organic Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
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