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Morin M, Björklund S, Nilsson EJ, Engblom J. Bicontinuous Cubic Liquid Crystals as Potential Matrices for Non-Invasive Topical Sampling of Low-Molecular-Weight Biomarkers. Pharmaceutics 2023; 15:2031. [PMID: 37631245 PMCID: PMC10459996 DOI: 10.3390/pharmaceutics15082031] [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: 06/16/2023] [Revised: 07/14/2023] [Accepted: 07/25/2023] [Indexed: 08/27/2023] Open
Abstract
Many skin disorders, including cancer, have inflammatory components. The non-invasive detection of related biomarkers could therefore be highly valuable for both diagnosis and follow up on the effect of treatment. This study targets the extraction of tryptophan (Trp) and its metabolite kynurenine (Kyn), two compounds associated with several inflammatory skin disorders. We furthermore hypothesize that lipid-based bicontinuous cubic liquid crystals could be efficient extraction matrices. They comprise a large interfacial area separating interconnected polar and apolar domains, allowing them to accommodate solutes with various properties. We concluded, using the extensively studied GMO-water system as test-platform, that the hydrophilic Kyn and Trp favored the cubic phase over water and revealed a preference for locating at the lipid-water interface. The interfacial area per unit volume of the matrix, as well as the incorporation of ionic molecules at the lipid-water interface, can be used to optimize the extraction of solutes with specific physicochemical characteristics. We also observed that the cubic phases formed at rather extreme water activities (>0.9) and that wearing them resulted in efficient hydration and increased permeability of the skin. Evidently, bicontinuous cubic liquid crystals constitute a promising and versatile platform for non-invasive extraction of biomarkers through skin, as well as for transdermal drug delivery.
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Affiliation(s)
- Maxim Morin
- Biofilms—Research Center for Biointerfaces, Malmö University, SE-205 06 Malmö, Sweden (S.B.); (E.J.N.)
- Department of Biomedical Science, Faculty of Health and Society, Malmö University, SE-205 06 Malmö, Sweden
| | - Sebastian Björklund
- Biofilms—Research Center for Biointerfaces, Malmö University, SE-205 06 Malmö, Sweden (S.B.); (E.J.N.)
- Department of Biomedical Science, Faculty of Health and Society, Malmö University, SE-205 06 Malmö, Sweden
| | - Emelie J. Nilsson
- Biofilms—Research Center for Biointerfaces, Malmö University, SE-205 06 Malmö, Sweden (S.B.); (E.J.N.)
- Department of Biomedical Science, Faculty of Health and Society, Malmö University, SE-205 06 Malmö, Sweden
| | - Johan Engblom
- Biofilms—Research Center for Biointerfaces, Malmö University, SE-205 06 Malmö, Sweden (S.B.); (E.J.N.)
- Department of Biomedical Science, Faculty of Health and Society, Malmö University, SE-205 06 Malmö, Sweden
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Dawoud M, Mojally M, Abdou R, Attia HG. Comparative study on the performance of monoolein cubic nanoparticles and trimyristin solid lipid nanoparticles as carriers for docetaxel. Pharm Dev Technol 2023; 28:277-287. [PMID: 36919494 DOI: 10.1080/10837450.2023.2191274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
Nowadays the application of lipid nanoparticles as carriers for the delivery of anticancer drugs gained great attention in cancer therapy. Solid lipid nanoparticles (SLNs) and cubic nanoparticles (cubosomes) are considered as promising carriers in cancer therapy. The comparison of these two lipid nanoparticles as efficient carriers for the anticancer drug docetaxel was our main goal in this study. Both nanoparticles were prepared by the hot melt homogenization technique followed by measurement of particle size, zeta potential, entrapment efficiency and in vitro release of docetaxel. An advanced technique has been applied to measure the release of docetaxel from these nanoparticles using small unilamellar vesicles (SUVs) as acceptor particles which resemble many compartments in our body. All prepared nanoparticles revealed a neutral zeta potential with particle sizes of about 200 nm. While SUVs showed a negative surface charge with a zeta potential of -55 mV, cubosomes showed higher entrapment efficiency and a slower docetaxel release compared to SLNs. Additionally, cubosomes improved in vitro cytotoxicity as well as the in vivo antitumor inhibition of docetaxel compared to SLNs and docetaxel solution. Overall, our results showed that incorporation of docetaxel into cubosomes could enhance its in vitro and in vivo performance compared to docetaxel incorporated into SLNs.
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Affiliation(s)
- Mohamed Dawoud
- Department of Pharmaceutics, Faculty of Pharmacy, Umm Al Qura, University, Holy Makkah, KSA
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Helwan-University, Cairo, Egypt
| | - Mariam Mojally
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Umm Al Qura, University, Holy Makkah, KSA
| | - Randa Abdou
- Department of Pharmacognosy, Faculty of Pharmacy, Umm Al Qura, University, Holy Makkah, KSA
| | - Hany G Attia
- Department of Pharmacognosy, College of Pharmacy, Najran University, Najran, Saudi Arabia
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3
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Ryan S, Shortall K, Dully M, Djehedar A, Murray D, Butler J, Neilan J, Soulimane T, Hudson SP. Long acting injectables for therapeutic proteins. Colloids Surf B Biointerfaces 2022; 217:112644. [DOI: 10.1016/j.colsurfb.2022.112644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 06/10/2022] [Accepted: 06/13/2022] [Indexed: 11/24/2022]
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4
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Preparation and Characterization of Bioadhesive Monoolein Cubosomes as Carriers for Captopril. J Pharm Innov 2022. [DOI: 10.1007/s12247-022-09618-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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5
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Miszta P, Nazaruk E, Nieciecka D, Możajew M, Krysiński P, Bilewicz R, Filipek S. The EcCLC antiporter embedded in lipidic liquid crystalline films - molecular dynamics simulations and electrochemical methods. Phys Chem Chem Phys 2022; 24:3066-3077. [PMID: 35040466 DOI: 10.1039/d1cp03992j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lipidic-liquid crystalline nanostructures (lipidic cubic phases), which are biomimetic and stable in an excess of water, were used as a convenient environment to investigate the transport properties of the membrane antiporter E. coli CLC-1 (EcCLC). The chloride ion transfer by EcCLC was studied by all-atom molecular dynamics simulations combined with electrochemical methods at pH 7 and pH 5. The cubic phase film was used as the membrane between the chloride donor and receiving compartments and it was placed on the glassy carbon electrode and immersed in the chloride solution. Structural characterization of lipidic mesoscopic systems with and without the incorporation of EcCLC was performed using small-angle X-ray scattering. The EcCLC transported chloride ions more efficiently at more acidic pH, and the resistance of the film decreased at lower pH. 4,4-Diisothiocyanatostilbene-2,2'-disulfonic acid (DIDS) employed as an inhibitor of the protein was shown to decrease the transport efficiency upon hydrolysis to DADS at both pH 7 and pH 5. The molecular dynamics simulations, performed for the first time in lipidic cubic phases for EcCLC, allowed studying the collective movements of chloride ions which can help in elucidating the mechanism of transporting the ions by the EcCLC antiporter. The protein modified lipidic cubic phase film is a convenient and simple system for screening potential inhibitors of integral membrane proteins, as demonstrated by the example of the EcCLC antiporter. The use of lipidic cubic phases may also be important for the further development of new electrochemical sensors for membrane proteins and enzyme electrodes.
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Affiliation(s)
- Przemysław Miszta
- Biological and Chemical Research Centre, University of Warsaw, Zwirki i Wigury 101, 02-089 Warsaw, Poland. .,Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland.
| | - Ewa Nazaruk
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland.
| | - Dorota Nieciecka
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland.
| | - Mariusz Możajew
- Biological and Chemical Research Centre, University of Warsaw, Zwirki i Wigury 101, 02-089 Warsaw, Poland. .,Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland. .,Nencki Institute of Experimental Biology, Polish Academy of Sciences, Pasteura 3, 02-093 Warsaw, Poland
| | - Paweł Krysiński
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland.
| | - Renata Bilewicz
- Biological and Chemical Research Centre, University of Warsaw, Zwirki i Wigury 101, 02-089 Warsaw, Poland. .,Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland.
| | - Sławomir Filipek
- Biological and Chemical Research Centre, University of Warsaw, Zwirki i Wigury 101, 02-089 Warsaw, Poland. .,Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland.
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Dawoud M, Abdou R. Ion exchange column technique as a novel method for evaluating the release of docetaxel from different lipid nanoparticles. Drug Deliv Transl Res 2022; 12:282-293. [PMID: 33768474 DOI: 10.1007/s13346-021-00937-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/01/2021] [Indexed: 10/21/2022]
Abstract
Lipid nanoparticles with their unique characters showed many advantages as carriers for anticancer drugs. To compare between these nanoparticles as carriers for anticancer drugs, it was important to evaluate and characterize their drug retention and release properties. In this study, ion exchange column is used as a new evaluation technique. Solid lipid nanoparticles (SLN), nanostructured lipid carrier (NLC), and cubic nanoparticles were prepared using the homogenization technique. Characterization of these nanoparticles was carried out by measuring particle size, zeta potential, and entrapment efficiency. The ion exchange column was used to evaluate docetaxel release from the different nanoparticles as donors to acceptor liposomes that mimic the cell membranes. Both populations were mixed and at different time points, separated using the columns. The amounts of docetaxel in the eluted nanoparticles and retained liposomes were calculated. The particle size of all donors was in the nanometer range with almost neutral zeta potential. The particle size of the acceptor liposomes was 135 nm with a high negative zeta potential -55 mV. Ion exchange columns showed excellent retention of the negative acceptor liposomes while less than 1% of the different donors were retained on the columns. Cubic nanoparticles showed the highest entrapment efficiency (95%) and the slowest drug transfer in comparison with SLN and NLC. In conclusion, the ion exchange column technique can be applied successfully to evaluate the release of docetaxel from the different lipid nanoparticles to acceptor liposomes. Cubic nanoparticles showed advantageous docetaxel incorporation and transfer over SLN and NLC.
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Affiliation(s)
- Mohamed Dawoud
- Department of Pharmaceutics, Faculty of Pharmacy, Umm Al Qura University, Mecca, Saudi Arabia.
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Helwan-University, Cairo, Egypt.
| | - Randa Abdou
- Department of Pharmacognosy, Faculty of Pharmacy, Umm Al Qura University, Mecca, Saudi Arabia
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Morin M, Björklund S, Jankovskaja S, Moore K, Delgado-Charro MB, Ruzgas T, Guy RH, Engblom J. Reverse Iontophoretic Extraction of Skin Cancer-Related Biomarkers. Pharmaceutics 2021; 14:79. [PMID: 35056976 PMCID: PMC8778044 DOI: 10.3390/pharmaceutics14010079] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/16/2021] [Accepted: 12/22/2021] [Indexed: 11/16/2022] Open
Abstract
Non-invasive methods for early diagnosis of skin cancer are highly valued. One possible approach is to monitor relevant biomarkers such as tryptophan (Trp) and kynurenine (Kyn), on the skin surface. The primary aim of this in vitro investigation was, therefore, to examine whether reverse iontophoresis (RI) can enhance the extraction of Trp and Kyn, and to demonstrate how the Trp/Kyn ratio acquired from the skin surface reflects that in the epidermal tissue. The study also explored whether the pH of the receiver medium impacted on extraction efficiency, and assessed the suitability of a bicontinuous cubic liquid crystal as an alternative to a simple buffer solution for this purpose. RI substantially enhanced the extraction of Trp and Kyn, in particular towards the cathode. The Trp/Kyn ratio obtained on the surface matched that in the viable skin. Increasing the receiver solution pH from 4 to 9 improved extraction of both analytes, but did not significantly change the Trp/Kyn ratio. RI extraction of Trp and Kyn into the cubic liquid crystal was comparable to that achieved with simple aqueous receiver solutions. We conclude that RI offers a potential for non-invasive sampling of low-molecular weight biomarkers and further investigations in vivo are therefore warranted.
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Affiliation(s)
- Maxim Morin
- Department of Biomedical Science, Faculty of Health and Society, Malmö University, SE-205 06 Malmö, Sweden; (S.B.); (S.J.); (T.R.)
- Biofilms—Research Center for Biointerfaces, Malmö University, SE-205 06 Malmö, Sweden
| | - Sebastian Björklund
- Department of Biomedical Science, Faculty of Health and Society, Malmö University, SE-205 06 Malmö, Sweden; (S.B.); (S.J.); (T.R.)
- Biofilms—Research Center for Biointerfaces, Malmö University, SE-205 06 Malmö, Sweden
| | - Skaidre Jankovskaja
- Department of Biomedical Science, Faculty of Health and Society, Malmö University, SE-205 06 Malmö, Sweden; (S.B.); (S.J.); (T.R.)
- Biofilms—Research Center for Biointerfaces, Malmö University, SE-205 06 Malmö, Sweden
| | - Kieran Moore
- Department of Pharmacy & Pharmacology, University of Bath, Claverton Down, Bath BA2 7AY, UK; (K.M.); (M.B.D.-C.); (R.H.G.)
| | - Maria Begoña Delgado-Charro
- Department of Pharmacy & Pharmacology, University of Bath, Claverton Down, Bath BA2 7AY, UK; (K.M.); (M.B.D.-C.); (R.H.G.)
| | - Tautgirdas Ruzgas
- Department of Biomedical Science, Faculty of Health and Society, Malmö University, SE-205 06 Malmö, Sweden; (S.B.); (S.J.); (T.R.)
- Biofilms—Research Center for Biointerfaces, Malmö University, SE-205 06 Malmö, Sweden
| | - Richard H. Guy
- Department of Pharmacy & Pharmacology, University of Bath, Claverton Down, Bath BA2 7AY, UK; (K.M.); (M.B.D.-C.); (R.H.G.)
| | - Johan Engblom
- Department of Biomedical Science, Faculty of Health and Society, Malmö University, SE-205 06 Malmö, Sweden; (S.B.); (S.J.); (T.R.)
- Biofilms—Research Center for Biointerfaces, Malmö University, SE-205 06 Malmö, Sweden
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8
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Stability of cubic phase and curvature tuning in the lyotropic system of branched chain galactose-based glycolipid by amphiphilic additives. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126697] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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9
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Calcium mediated DNA binding in non-lamellar structures formed by DOPG/glycerol monooleate. Chem Phys Lipids 2021; 239:105118. [PMID: 34280362 DOI: 10.1016/j.chemphyslip.2021.105118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 05/28/2021] [Accepted: 07/14/2021] [Indexed: 11/21/2022]
Abstract
In order to test an encapsulation method of short fragmented DNA (∼ 20-300 bp), we study the solubilisation in 150 mM solution of NaCl of a cubic phase formed by glycerol monooleate (GMO) with negatively charged dioleoylphosphatidylglycerol (DOPG) up to the level of unilamellar vesicles and, subsequently, the restoration of the cubic phase using Ca2+ cations. We performed small angle X-ray and neutron scattering (SAXS and SANS) to follow structural changes in DOPG/GMO mixtures induced by increasing DOPG content. The cubic phase (Pn3m space group) is preserved up to ∼ 11 mol% of DOPG in DOPG/GMO. Above 20 mol%, the SANS curves are typical of unilamellar vesicles. The thickness of the DOPG/GMO lipid bilayer (dL) decreases slightly with increasing fraction of DOPG. The addition of 15 mM of CaCl2 solution shields the electrostatic repulsions of DOPG molecules, increases slightly dL and restores the cubic structures in the mixtures up to ∼ 37 mol% of DOPG. Zeta potential shows negative surface charge. The analysis of the data provides the radius of the water nano-channels of the formed non-lamellar structures. We discuss their dimensions with respect to DNA binding. In addition, Ca2+ mediates DNA - DOPG/GMO binding. The formed hexagonal phase, HII, binds less of DNA in comparison with cubic phases (∼ 6 wt% and ∼ 20 wt% of the total amount, respectively). The studied system can be utilized as anionic QII delivery vector for genetic material.
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10
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Mansour M, Abo El Ezz TA, Fattoh FN, AbouelFadl DM, Gad HA. Delineating the usage of dexamethasone-loaded cubosomes as a therapeutic armamentarium for hearing loss versus its protective effect: In-vitro and in-vivo animal study. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2020.102244] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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11
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Lipidic Cubic-Phase Nanoparticles (Cubosomes) Loaded with Doxorubicin and Labeled with 177Lu as a Potential Tool for Combined Chemo and Internal Radiotherapy for Cancers. NANOMATERIALS 2020; 10:nano10112272. [PMID: 33207760 PMCID: PMC7696353 DOI: 10.3390/nano10112272] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 11/11/2020] [Accepted: 11/13/2020] [Indexed: 11/23/2022]
Abstract
Lipid liquid-crystalline nanoparticles (cubosomes) were used for the first time as a dual-modality drug delivery system for internal radiotherapy combined with chemotherapy. Monoolein (GMO)-based cubosomes were prepared by loading the anticancer drug, doxorubicin and a commonly used radionuclide, low-energy beta (β−)-emitter, 177Lu. The radionuclide was complexed with a long chain derivative of DOTAGA (DOTAGA-OA). The DOTAGA headgroup of the chelator was exposed to the aqueous channels of the cubosomes, while, concerning OA, the hydrophobic tail was embedded in the nonpolar region of the lipid bilayer matrix, placing the radioactive dopant in a stable manner inside the cubosome. The cubosomes containing doxorubicin and the radionuclide complex increased the cytotoxicity measured by the viability of the treated HeLa cells compared with the effect of single-drug cubosomes containing either the DOX DOTAGA-OA or DOTAGA-OA-177Lu complex. Multifunctional lipidic nanoparticles encapsulating the chemotherapeutic agent together with appropriately complexed (β−) radionuclide are proposed as a potential strategy for effective local therapy of various cancers.
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12
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Dawoud M, Abourehab MA, Abdou R. Monoolein cubic nanoparticles as novel carriers for docetaxel. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101501] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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13
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Lin SY. Thermoresponsive gating membranes embedded with liquid crystal(s) for pulsatile transdermal drug delivery: An overview and perspectives. J Control Release 2019; 319:450-474. [PMID: 31901369 DOI: 10.1016/j.jconrel.2019.12.046] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 12/27/2019] [Accepted: 12/28/2019] [Indexed: 01/08/2023]
Abstract
Due to the circadian rhythm regulation of almost every biological process in the human body, physiological and biochemical conditions vary considerably over the course of a 24-h period. Thus, optimal drug delivery and therapy should be effectively controlled to achieve the desired therapeutic plasma concentrations and therapeutic drug responses at the required time according to chronopharmacological concepts, rather than continuous maintenance of constant drug concentrations for an extended time period. For many drugs, it is not always necessary to constantly deliver a drug into the human body under disease conditions due to rhythmic variations. Pulsatile drug delivery systems (PDDSs) have been receiving more attention in pharmaceutical development by providing a predetermined lag period, followed by a fast or rate-controlled drug release after application. PDDSs are characterized by a programmed drug release, which may release a drug at repeatable pulses to match the biological and clinical needs of a given disease therapy. This review article focuses on thermoresponsive gating membranes embedded with liquid crystals (LCs) for transdermal drug delivery using PDDS technology. In addition, the principal rationale and the advanced approaches for the use of PDDSs, the marketed products of chronotherapeutic DDSs with pulsatile function designed by various PDDS technologies, pulsatile drug delivery designed with thermoresponsive polymers, challenges and opportunities of transdermal drug delivery, and novel approaches of LC systems for drug delivery are reviewed and discussed. A brief overview of all academic research articles concerning single LC- or binary LC-embedded thermoresponsive membranes with a switchable on-off permeation function through topical application by an external temperature control, which may modulate the dosing interval and administration time according to the therapeutic needs of the human body, is also compiled and presented. In the near future, since thermal-based approaches have become a well-accepted method to enhance transdermal delivery of different water-soluble drugs and macromolecules, a combination of the thermal-assisted approach with thermoresponsive LCs membranes will have the potential to improve PDDS applications but still poses a great challenge.
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Affiliation(s)
- Shan-Yang Lin
- Laboratory of Pharmaceutics and Biopharmaceutics, Department of Biotechnology and Pharmaceutical Technology, Yuanpei University of Medical Technology, No.306, Yuanpei Street, Hsin Chu 30015, Taiwan.
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14
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Biophysical characterization of mycobacterial model membranes and their interaction with rifabutin: Towards lipid-guided drug screening in tuberculosis. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2019; 1861:1213-1227. [PMID: 31002767 DOI: 10.1016/j.bbamem.2019.04.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 03/12/2019] [Accepted: 04/08/2019] [Indexed: 01/31/2023]
Abstract
Lipid structure critically dictates the molecular interactions of drugs with membranes influencing passive diffusion, drug partitioning and accumulation, thereby underpinning a lipid-composition specific interplay. Spurring selective passive drug diffusion and uptake through membranes is an obvious solution to combat growing antibiotic resistance with minimized toxicities. However, the spectrum of complex mycobacterial lipids and lack thereof of suitable membrane platforms limits the understanding of mechanisms underlying drug-membrane interactions in tuberculosis. Herein, we developed membrane scaffolds specific to mycobacterial outer membrane and demonstrate them as improvised research platforms for investigating anti-tubercular drug interactions. Combined spectroscopy and microscopy results reveal an enhanced partitioning of model drug Rifabutin in trehalose dimycolate-containing mycobacterial membrane systems. These effects are apportioned to specific changes in membrane structure, order and fluidity leading to enhanced drug interaction. These findings on the membrane biophysical consequences of drug interactions will offer valuable insights for guiding the design of more effective antibiotic drugs coupled with tuned toxicity profiles.
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15
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Charged additives modify drug release rates from lipidic cubic phase carriers by modulating electrostatic interactions. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2017.10.057] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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16
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van 't Hag L, Gras SL, Conn CE, Drummond CJ. Lyotropic liquid crystal engineering moving beyond binary compositional space - ordered nanostructured amphiphile self-assembly materials by design. Chem Soc Rev 2018; 46:2705-2731. [PMID: 28280815 DOI: 10.1039/c6cs00663a] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Ordered amphiphile self-assembly materials with a tunable three-dimensional (3D) nanostructure are of fundamental interest, and crucial for progressing several biological and biomedical applications, including in meso membrane protein crystallization, as drug and medical contrast agent delivery vehicles, and as biosensors and biofuel cells. In binary systems consisting of an amphiphile and a solvent, the ability to tune the 3D cubic phase nanostructure, lipid bilayer properties and the lipid mesophase is limited. A move beyond the binary compositional space is therefore required for efficient engineering of the required material properties. In this critical review, the phase transitions upon encapsulation of more than 130 amphiphilic and soluble additives into the bicontinuous lipidic cubic phase under excess hydration are summarized. The data are interpreted using geometric considerations, interfacial curvature, electrostatic interactions, partition coefficients and miscibility of the alkyl chains. The obtained lyotropic liquid crystal engineering design rules can be used to enhance the formulation of self-assembly materials and provides a large library of these materials for use in biomedical applications (242 references).
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Affiliation(s)
- Leonie van 't Hag
- Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
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17
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Nazaruk E, Majkowska-Pilip A, Godlewska M, Salamończyk M, Gawel D. Electrochemical and biological characterization of lyotropic liquid crystalline phases – retardation of drug release from hexagonal mesophases. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.01.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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18
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Salentinig S, Zabara M, Parisse P, Amenitsch H. Formation of highly ordered liquid crystalline coatings – an in situ GISAXS study. Phys Chem Chem Phys 2018; 20:21903-21909. [PMID: 30123907 DOI: 10.1039/c8cp03205j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In situ GISAXS and AFM reveal the formation of highly geometrically organized glycerol monooleate based liquid crystalline films on silicon wafers.
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Affiliation(s)
- S. Salentinig
- Laboratory for Biointerfaces
- Department Materials Meet Life
- Empa
- Swiss Federal Laboratories for Materials Science and Technology
- 9014 St. Gallen
| | - Mahsa Zabara
- Laboratory for Biointerfaces
- Department Materials Meet Life
- Empa
- Swiss Federal Laboratories for Materials Science and Technology
- 9014 St. Gallen
| | - P. Parisse
- Elettra Sincrotrone Trieste S.C.p.A
- 34149-Basovizza
- Italy
| | - H. Amenitsch
- Institute for Inorganic Chemistry
- Graz University of Technology
- Stremayergasse 9/V
- 8010 Graz
- Austria
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19
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Novel polyglycerol-dioleate based cubosomal dispersion with tailored physical characteristics for controlled delivery of ondansetron. Colloids Surf B Biointerfaces 2017; 156:44-54. [DOI: 10.1016/j.colsurfb.2017.04.052] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 04/21/2017] [Accepted: 04/25/2017] [Indexed: 01/27/2023]
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20
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Szlezak M, Nieciecka D, Joniec A, Pękała M, Gorecka E, Emo M, Stébé MJ, Krysiński P, Bilewicz R. Monoolein Cubic Phase Gels and Cubosomes Doped with Magnetic Nanoparticles-Hybrid Materials for Controlled Drug Release. ACS APPLIED MATERIALS & INTERFACES 2017; 9:2796-2805. [PMID: 28029248 DOI: 10.1021/acsami.6b12889] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Hybrid materials consisting of a monoolein lipidic cubic phase (LCP) incorporating two types of magnetic nanoparticles (NP) were designed as addressable drug delivery systems. The materials, prepared in the form of a gel, were subsequently used as a macroscopic layer modifying an electrode and, after dispersion to nanoscale, as magnetocubosomes. These two LCPs were characterized by small-angle X-ray scattering (SAXS), cross-polarized microscopy, magnetic measurements, and phase diagrams. The magnetic dopants were hydrophobic NPoleic and hydrophilic NPcitric, characterized by dynamic light scattering (DLS) and transmission electron microscopy (TEM), and their influence on the properties of the cubic phases was investigated. The removal of the anticancer drug, Doxorubicin (Dox) from the hybrid cubic phase gels was studied by electrochemical methods. The advantages of incorporating magnetic nanoparticles into the self-assembled lipid liquid crystalline phases include the ability to address the cubic phase nanoparticle containing large amounts of drug and to control the kinetics of the drug release.
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Affiliation(s)
- Monika Szlezak
- Faculty of Chemistry, University of Warsaw , Pasteura 1, PL 02-093 Warsaw, Poland
| | - Dorota Nieciecka
- Faculty of Chemistry, University of Warsaw , Pasteura 1, PL 02-093 Warsaw, Poland
| | - Aleksandra Joniec
- Faculty of Chemistry, University of Warsaw , Pasteura 1, PL 02-093 Warsaw, Poland
| | - Marek Pękała
- Faculty of Chemistry, University of Warsaw , Pasteura 1, PL 02-093 Warsaw, Poland
| | - Ewa Gorecka
- Faculty of Chemistry, University of Warsaw , Pasteura 1, PL 02-093 Warsaw, Poland
| | - Mélanie Emo
- Université de Lorraine/CNRS , SRSMC, UMR7565, Vandoeuvre-lès-Nancy CEDEX F54506, France
| | - Marie J Stébé
- Université de Lorraine/CNRS , SRSMC, UMR7565, Vandoeuvre-lès-Nancy CEDEX F54506, France
| | - Paweł Krysiński
- Faculty of Chemistry, University of Warsaw , Pasteura 1, PL 02-093 Warsaw, Poland
| | - Renata Bilewicz
- Faculty of Chemistry, University of Warsaw , Pasteura 1, PL 02-093 Warsaw, Poland
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21
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Nazaruk E, Majkowska-Pilip A, Bilewicz R. Lipidic Cubic-Phase Nanoparticles-Cubosomes for Efficient Drug Delivery to Cancer Cells. Chempluschem 2017; 82:570-575. [PMID: 31961592 DOI: 10.1002/cplu.201600534] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Revised: 12/15/2016] [Indexed: 12/18/2022]
Abstract
Self-assembled lipid liquid-crystalline nanoparticles, known as cubosomes, were used for the delivery of the anticancer drug doxorubicin (DOX). Several properties make cubosomes a promising alternative in the development of controlled-release systems for drug delivery. They have a larger internal surface area than other carriers, hence deliver more drug molecules to the affected cells and maintain the cubic symmetry of the parent lipidic cubic phase, but at the same time they have a lower viscosity thereby facilitating transport of the drug. The pH-dependent drug release profiles, evaluated by voltammetry, demonstrated triggered drug release from the cubosome carrier to the environment of the cancer cells, where pH is lower. The anticancer effect of a DOX-loaded cubosome on the glioblastoma T98G cell line was found to be highly efficient and required lower concentrations of DOX to inhibit the proliferation of cancer cells than the effective concentrations of free DOX.
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Affiliation(s)
- Ewa Nazaruk
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland
| | - Agnieszka Majkowska-Pilip
- Centre of Radiochemistry and Nuclear Chemistry, Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195, Warsaw, Poland
| | - Renata Bilewicz
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland
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22
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Evenbratt H, Ström A. Phase behavior, rheology, and release from liquid crystalline phases containing combinations of glycerol monooleate, glyceryl monooleyl ether, propylene glycol, and water. RSC Adv 2017. [DOI: 10.1039/c7ra04249c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Quaternary phase diagram of the GMO/GME/PG and water system is determined, allowing for controlled phase transitions triggered by temperature or humidity.
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Affiliation(s)
- Hanne Evenbratt
- Department of Chemistry and Chemical Engineering
- Pharmaceutical Technology
- Chalmers University of Technology
- Gothenburg
- Sweden
| | - Anna Ström
- Department of Chemistry and Chemical Engineering
- Pharmaceutical Technology
- Chalmers University of Technology
- Gothenburg
- Sweden
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23
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Dawoud MZ, Nasr M. Comparison of drug release from liquid crystalline monoolein dispersions and solid lipid nanoparticles using a flow cytometric technique. Acta Pharm Sin B 2016; 6:163-9. [PMID: 27006901 PMCID: PMC4788703 DOI: 10.1016/j.apsb.2016.01.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 11/10/2015] [Accepted: 12/10/2016] [Indexed: 11/27/2022] Open
Abstract
Colloidal lipid particles such as solid lipid nanoparticles and liquid crystalline nanoparticles have great opportunities as drug carriers especially for lipophilic drugs intended for intravenous administration. In order to evaluate drug release from these nanoparticles and determine their behavior after administration, emulsion droplets were used as a lipophilic compartment to which the transfer of a model drug was measured. The detection of the model drug transferred from monoolein cubic particles and trimyristin solid lipid nanoparticles into emulsion droplets was performed using a flow cytometric technique. A higher rate and amount of porphyrin transfer from the solid lipid nanoparticles compared to the monoolein cubic particles was observed. This difference might be attributed to the formation of a highly ordered particle which leads to the expulsion of drug to the surface of the crystalline particle. Furthermore, the sponge-like structure of the monoolein cubic particles decreases the rate and amount of drug transferred. In conclusion, the flow cytometric technique is a suitable technique to study drug transfer from these carriers to large lipophilic acceptors. Monoolein cubic particles with their unique structure can be used successfully as a drug carrier with slow drug release compared with trimyristin nanoparticles.
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Affiliation(s)
- Mohamed Z. Dawoud
- Correspondence to: Department of Pharmaceutics, Faculty of Pharmacy, Umm Al Qura, University, Holy Makkah, KSA. Tel.: +20 966546116057.Department of Pharmaceutics, Faculty of Pharmacy, Umm Al Qura, UniversityHoly MakkahKSA.
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24
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Purushothaman S, Cama J, Keyser UF. Dependence of norfloxacin diffusion across bilayers on lipid composition. SOFT MATTER 2016; 12:2135-2144. [PMID: 26768751 DOI: 10.1039/c5sm02371h] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Antibiotic resistance is a growing concern in medicine and raises the need to develop and design new drug molecules that can efficiently inhibit bacterial replication. Spurring the passive uptake of the drug molecules is an obvious solution. However our limited understanding of drug-membrane interactions due to the presence of an overwhelming variety of lipids constituting cellular membranes and the lack of facile tools to probe the bio-physical interactions between drugs and lipids imposes a major challenge towards developing new drug molecules that can enter the cell via passive diffusion. Here, we used a label-free micro-fluidic platform combined with giant unilamellar lipid vesicles to investigate the permeability of membranes containing mixtures of DOPE and DOPG in DOPC, leading to a label-free measurement of passive membrane-permeability of autofluorescent antibiotics. A fluoroquinolone drug, norfloxacin was used as a case study. Our results indicate that the diffusion of norfloxacin is strongly dependent on the lipid composition which is not expected from the traditional octanol-lipid partition co-efficient assay. The anionic lipid, DOPG, slows the diffusion process whereas the diffusion across liposomes containing DOPE increases with higher DOPE concentration. Our findings emphasise the need to investigate drug-membrane interactions with focus on the specificity of drugs to lipids for efficient drug delivery, drug encapsulation and targeted drug-delivery.
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Affiliation(s)
- Sowmya Purushothaman
- Biological and Soft Systems, Department of Physics, University of Cambridge, Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE, UK.
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25
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Zahid NI, Abou-Zied OK, Nabila Saari NA, Hashim R. Comparative study of the inverse versus normal bicontinuous cubic phases of the β-d-glucopyranoside water-driven self-assemblies using fluorescent probes. RSC Adv 2016. [DOI: 10.1039/c5ra19794e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
This work investigates the head group region of the inverse and normal bicontinuous cubic phases (Ia3d space group) of the glucopyranoside/water system using 2-(2′-hydroxyphenyl)benzoxazole and its derivatives as fluorescent probes.
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Affiliation(s)
- N. Idayu Zahid
- Department of Chemistry
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
- Malaysia
| | - Osama K. Abou-Zied
- Department of Chemistry
- Faculty of Science
- Sultan Qaboos University
- Muscat
- Sultanate of Oman
| | - N. A. Nabila Saari
- Department of Chemistry
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
- Malaysia
| | - Rauzah Hashim
- Department of Chemistry
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
- Malaysia
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26
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Pluhackova K, Morhenn H, Lautner L, Lohstroh W, Nemkovski KS, Unruh T, Böckmann RA. Extension of the LOPLS-AA Force Field for Alcohols, Esters, and Monoolein Bilayers and its Validation by Neutron Scattering Experiments. J Phys Chem B 2015; 119:15287-99. [DOI: 10.1021/acs.jpcb.5b08569] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Kristyna Pluhackova
- Computational
Biology, Department of Biology, University of Erlangen-Nürnberg, Staudtstrasse 5, 91058 Erlangen, Germany
| | - Humphrey Morhenn
- Lehrstuhl
für Kristallografie und Strukturphysik, Department Physik, Friedrich-Alexander-Universität Erlangen-Nürnberg, Staudtstrasse 3, 91058 Erlangen, Germany
| | - Lisa Lautner
- Lehrstuhl
für Kristallografie und Strukturphysik, Department Physik, Friedrich-Alexander-Universität Erlangen-Nürnberg, Staudtstrasse 3, 91058 Erlangen, Germany
| | - Wiebke Lohstroh
- Heinz
Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstrasse 1, 85748 Garching b. München, Germany
| | - Kirill S. Nemkovski
- Jülich
Center for Neutron Science JCNS, Forschungszentrum Jülich GmbH, Outstation at MLZ, Lichtenbergstrasse 1, 85747 Garching b. München, Germany
| | - Tobias Unruh
- Lehrstuhl
für Kristallografie und Strukturphysik, Department Physik, Friedrich-Alexander-Universität Erlangen-Nürnberg, Staudtstrasse 3, 91058 Erlangen, Germany
| | - Rainer A. Böckmann
- Computational
Biology, Department of Biology, University of Erlangen-Nürnberg, Staudtstrasse 5, 91058 Erlangen, Germany
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27
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Transdermal baicalin delivery using diethylene glycol monoethyl ether-mediated cubic phase gel. Int J Pharm 2015; 479:219-26. [DOI: 10.1016/j.ijpharm.2014.12.055] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 11/01/2014] [Accepted: 12/23/2014] [Indexed: 11/19/2022]
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28
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Glycerol monooleate liquid crystalline phases used in drug delivery systems. Int J Pharm 2015; 478:569-87. [DOI: 10.1016/j.ijpharm.2014.11.072] [Citation(s) in RCA: 117] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 11/20/2014] [Accepted: 11/29/2014] [Indexed: 12/13/2022]
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29
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Salentinig S, Tangso KJ, Hawley A, Boyd BJ. pH-driven colloidal transformations based on the vasoactive drug nicergoline. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:14776-81. [PMID: 25409414 DOI: 10.1021/la503824z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The structure of colloidal self-assembled drug delivery systems can be influenced by intermolecular interactions between drug and amphiphilic molecules, and is important to understand in the context of designing improved delivery systems. Controlling these structures can enable controlled or targeted release systems for poorly water-soluble drugs. Here we present the interaction of the hydrophobic vasoactive drug nicergoline with the internal structure of nanostructured emulsion particles based on the monoglyceride-water system. Addition of this drug leads to modification of the internal bicontinuous cubic structure to generate highly pH-responsive systems. The colloidal structures were characterized with small-angle X-ray scattering and visualized using cryogenic transmission electron microscopy. Reversible transformations to inverse micelles at high pH, vesicles at low pH, and the modification of the spacing of the bicontinuous cubic structure at intermediate pH were observed, and enabled the in situ determination of an apparent pKa for the drug in this system--a difficult task using solution-based approaches. The characterization of this phase behavior is also highly interesting for the design of pH-responsive controlled release systems for poorly water-soluble drug molecules.
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Affiliation(s)
- Stefan Salentinig
- Drug Delivery, Disposition and Dynamics, and §ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus) , 381 Royal Parade, Parkville, VIC 3052, Australia
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30
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Rahanyan-Kägi N, Aleandri S, Speziale C, Mezzenga R, Landau EM. Stimuli-responsive lipidic cubic phase: triggered release and sequestration of guest molecules. Chemistry 2014; 21:1873-7. [PMID: 25512248 DOI: 10.1002/chem.201405580] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Indexed: 11/12/2022]
Abstract
New stimuli-responsive nanomaterials, made up of host-guest lipidic cubic phases (LCPs) are presented. These biocompatible, stable, transparent and water-insoluble LCPs are composed of monoolein (MO) as a neutral host, and small amounts of one of three judiciously designed and synthesized designer lipids as guest that preserve the structure and stability of LCPs, but render them specific functionalities. Efficient pH- and light-induced binding, release and sequestration of hydrophilic dyes are demonstrated. Significantly, these processes can be performed sequentially, thereby achieving both temporal and dosage control, opening up the possibility of using such LCPs as effective carriers to be used in drug delivery applications. Specifically, because of the inherent optical transparency and molecular isotropy of LCPs they can be envisaged as light-induced drug carriers in ophthalmology. The results presented here demonstrate the potential of molecular design in creating new functional materials with predicted operating mode.
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Affiliation(s)
- Nelli Rahanyan-Kägi
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, 8057 Zürich (Switzerland)
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31
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Nazaruk E, Szlęzak M, Górecka E, Bilewicz R, Osornio YM, Uebelhart P, Landau EM. Design and assembly of pH-sensitive lipidic cubic phase matrices for drug release. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:1383-1390. [PMID: 24443890 DOI: 10.1021/la403694e] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Bicontinuous lipidic cubic phases (LCPs) exhibit a combination of material properties that make them highly interesting for various biomaterial applications: they are nontoxic, biodegradable, optically transparent, thermodynamically stable in excess water, and can incorporate active molecules of virtually any polarity. Here we present a molecular system comprising host lipid, water, and designed lipidic additive, which form a structured, pH-sensitive lipidic matrix for hydrophilic as well as hydrophobic drug incorporation and release. The model drug doxorubicin (Dox) was loaded into the LCP. Tunable interactions with the lipidic matrix led to the observed pH-dependent drug release from the phase. The rate of Dox release from the cubic phase at pH 7.4 was low but increased significantly at more acidic pH. A small amount of a tailored diacidic lipid (lipid 1) added to the monoolein LCP modified the release rate of the drug. Phase identity and structural parameters of pure and doped mesophases were characterized by small-angle X-ray scattering (SAXS), and release profiles from the matrix were monitored electrochemically. Analysis of the release kinetics revealed that the total amount of drug released from the LCP matrix is linearly dependent on the square root of time, implying that the release mechanism proceeds according to the Higuchi model.
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Affiliation(s)
- Ewa Nazaruk
- Department of Chemistry, University of Warsaw , Pasteura 1, PL 02-093 Warsaw, Poland
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32
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Zahid NI, Conn CE, Brooks NJ, Ahmad N, Seddon JM, Hashim R. Investigation of the effect of sugar stereochemistry on biologically relevant lyotropic phases from branched-chain synthetic glycolipids by small-angle X-ray scattering. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:15794-15804. [PMID: 24274824 DOI: 10.1021/la4040134] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Synthetic branched-chain glycolipids are suitable as model systems in understanding biological cell membranes, particularly because certain natural lipids possess chain branching. Herein, four branched-chain glycopyranosides, namely, 2-hexyl-decyl-α-D-glucopyranoside (α-Glc-OC10C6), 2-hexyl-decyl-β-D-glucopyranoside (β-Glc-OC10C6), 2-hexyl-decyl-α-D-galactopyranoside (α-Gal-OC10C6), and 2-hexyl-decyl-β-D-galactopyranoside (β-Gal-OC10C6), with a total alkyl chain length of 16 carbon atoms have been synthesized, and their phase behavior has been studied. The partial binary phase diagrams of these nonionic surfactants in water were investigated by optical polarizing microscopy (OPM) and small-angle X-ray scattering (SAXS). The introduction of chain branching in the hydrocarbon chain region is shown to result in the formation of inverse structures such as inverse hexagonal and inverse bicontinuous cubic phases. A comparison of the four compounds showed that they exhibited different polymorphism, especially in the thermotropic state, as a result of contributions from anomeric and epimeric effects according to their stereochemistry. The neat α-Glc-OC10C6 compound exhibited a lamellar (Lα) phase whereas dry α-Gal-OC10C6 formed an inverse bicontinuous cubic Ia3d (QII(G)) phase. Both β-anomers of glucoside and galactoside adopted the inverse hexagonal phase (HII) in the dry state. Generally, in the presence of water, all four glycolipids formed inverse bicontinuous cubic Ia3d (QII(G)) and Pn3m (QII(D)) phases over wide temperature and concentration ranges. The formation of inverse nonlamellar phases by these Guerbet branched-chain glycosides confirms their potential as materials for novel biotechnological applications such as drug delivery and crystallization of membrane proteins.
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Affiliation(s)
- N Idayu Zahid
- Department of Chemistry, Faculty of Science, University of Malaya , 50603 Kuala Lumpur, Malaysia
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33
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Iglesias GR, Pirolt F, Sadeghpour A, Tomšič M, Glatter O. Lipid transfer in oil-in-water isasome emulsions: influence of arrested dynamics of the emulsion droplets entrapped in a hydrogel. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:15496-15502. [PMID: 24274164 DOI: 10.1021/la4032255] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The transfer kinetics of lipids between internally self-assembled droplets of O/W emulsions is studied. The droplets (isasomes) consist of various liquid-crystalline phases or W/O microemulsions stabilized by a polymeric stabilizer F127. The various internal phases were identified by the relative peak positions in the small-angle X-ray scattering (SAXS) curves. An arrested system composed of isasomes embedded in a gel matrix actually provides an additional possibility to control these systems in terms of the release of various host molecules. These experiments have been applied to examine the kinetics of the internal phase reorganization imposed by the lipids' release and uptake by the droplets embedded in a κ-carrageenan (KC) hydrogel network. Increasing the concentration of the gelling agent slows down the transfer from one droplet to the other through the aqueous phase. We examined the region where the free diffusion is stopped. i.e., the point where the system changes from the ergodic to the nonergodic state and the kinetics is essentially slowed down. This effect can be balanced by the addition of small amounts of free polymeric stabilizer, which speeds up the kinetics. This is even possible in the case of highly arrested dynamics of the emulsion droplets, as found for the highest KC hydrogel concentrations forming nonergodic systems.
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Evenbratt H, Nordstierna L, Ericson MB, Engström S. Cubic and sponge phases in ether lipid-solvent-water ternary systems: phase behavior and NMR characterization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:13058-13065. [PMID: 24060205 DOI: 10.1021/la402732a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The phase behavior of 1-glyceryl monoleyl ether (GME) in mixtures of water and the solvents 1,5-pentanediol (POL) or N-methyl-2-pyrrolidone (NMP) was investigated by ocular inspection, polarization microscopy, and small-angle X-ray diffraction (SAXD). Phase diagrams were constructed based on analyses of more than 200 samples prepared using the two different solvents at 20 °C. The inverse hexagonal phase formed by GME in excess of water was transformed into the cubic and sponge phase with the increasing amount of each solvent. Particularly POL allowed for the formation of an extended sponge phase area in the phase diagram, comprising up to 70% POL-water mixture. The phase behavior using NMP was found to be similar to the earlier investigated solvent propylene glycol. The extended sponge phase for the POL system was attributed to POLs strong surface/interfacial activity with the potential to stabilize the polar/apolar interface of the sponge phase. The cubic and sponge phases formed using POL were further studied by NMR in order to measure the partitioning of POL between the lipid and aqueous domains of the phases. The domain partition coefficient K (lipid domain/aqueous domain) for POL in cubic and sponge phases was found to be 0.78 ± 0.14 and constant for the two phases.
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Affiliation(s)
- Hanne Evenbratt
- Department of Chemical and Biological Engineering, Pharmaceutical Technology, Chalmers University of Technology , SE-41296 Gothenburg, Sweden
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35
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Mulet X, Boyd BJ, Drummond CJ. Advances in drug delivery and medical imaging using colloidal lyotropic liquid crystalline dispersions. J Colloid Interface Sci 2013; 393:1-20. [DOI: 10.1016/j.jcis.2012.10.014] [Citation(s) in RCA: 213] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Revised: 10/08/2012] [Accepted: 10/08/2012] [Indexed: 10/27/2022]
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36
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In situ forming drug delivery systems based on lyotropic liquid crystalline phases: structural characterization and release properties. J Drug Deliv Sci Technol 2013. [DOI: 10.1016/s1773-2247(13)50049-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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37
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Nilsson C, Edwards K, Eriksson J, Larsen SW, Østergaard J, Larsen C, Urtti A, Yaghmur A. Characterization of oil-free and oil-loaded liquid-crystalline particles stabilized by negatively charged stabilizer citrem. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:11755-11766. [PMID: 22831645 DOI: 10.1021/la3021244] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The present study was designed to evaluate the effect of the negatively charged food-grade emulsifier citrem on the internal nanostructures of oil-free and oil-loaded aqueous dispersions of phytantriol (PHYT) and glyceryl monooleate (GMO). To our knowledge, this is the first report in the literature on the utilization of this charged stabilizing agent in the formation of aqueous dispersions consisting of well-ordered interiors (either inverted-type hexagonal (H(2)) phases or inverted-type microemulsion systems). Synchrotron small-angle X-ray scattering (SAXS) and cryogenic transmission electron microscopy (cryo-TEM) were used to characterize the dispersed and the corresponding nondispersed phases of inverted-type nonlamellar liquid-crystalline phases and microemulsions. The results suggest a transition between different internal nanostructures of the aqueous dispersions after the addition of the stabilizer. In addition to the main function of citrem as a stabilizer that adheres to the surface of the dispersed particles, it has a significant impact on the internal nanostructures, which is governed by the following factors: (1) its penetration between the hydrophobic tails of the lipid molecules and (2) its degree of incorporation into the lipid-water interfacial area. In the presence of citrem, the formation of aqueous dispersions with functionalized hydrophilic domains by the enlargement of the hydrophilic nanochannels of the internal H(2) phase in hexosomes and the hydrophilic core of the L(2) phase in emulsified microemulsions (EMEs) could be particularly attractive for solubilizing and controlling the release of positively charged drugs.
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Affiliation(s)
- Christa Nilsson
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
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Misiūnas A, Niaura G, Barauskas J, Meškys R, Rutkienė R, Razumas V, Nylander T. Horse heart cytochrome c entrapped into the hydrated liquid-crystalline phases of phytantriol: X-ray diffraction and Raman spectroscopic characterization. J Colloid Interface Sci 2012; 378:232-40. [DOI: 10.1016/j.jcis.2012.04.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2012] [Revised: 04/02/2012] [Accepted: 04/03/2012] [Indexed: 10/28/2022]
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Yaghmur A, Rappolt M, Østergaard J, Larsen C, Larsen SW. Characterization of bupivacaine-loaded formulations based on liquid crystalline phases and microemulsions: the effect of lipid composition. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:2881-9. [PMID: 22247936 DOI: 10.1021/la203577v] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
This report details the structural characterization and the in vitro drug-release properties of different local anesthetic bupivacaine (BUP)-loaded inverted-type liquid crystalline phases and microemulsions. The effects of variations in the lipid composition and/or BUP concentration on the self-assembled nanostructures were investigated in the presence of the commercial distilled glycerol monooleate Myverol 18-99K (GMO) and medium-chain triglycerides (MCT). Synchrotron small-angle X-ray scattering (SAXS) and rotating dialysis cell model were used to characterize the BUP formulations and to investigate the in vitro BUP release profiles, respectively. The evaluation of SAXS data for the BUP-loaded GMO/MCT formulations indicates the structural transition of inverted-type bicontinuous cubic phase of the symmetry Pn3m → inverted-type hexagonal (H(2)) phase → inverted-type microemulsion (L(2)) with increasing MCT content (0-40 wt %). In the absence of MCT, the solubilization of BUP induces the transition of Pn3m → H(2) at pH 7.4; whereas a transition of Pn3m → (Pn3m + H(2)) is detected as the hydration is achieved at pH 6.0. To mimic the drug release and transport from in situ formed self-assembled systems after subcutaneous administration, the release experiments were performed by injecting low viscous stimulus-responsive precursors to a buffer in the dialysis cell leaving the surface area between the self-assembled system and the release medium variable. Our results suggest that the pH-dependent variations in the lipidic partition coefficient, K(l/w), between the liquid crystalline nanostructures and the surrounding buffer solution are significantly affecting BUP release rates. Thus, a first step toward understanding of the drug-release mechanism of this drug-delivery class has been undertaken tackling the influence of drug ionization as well as the type of the self-assembled nanostructure and its release kinetics under pharmaceutically relevant conditions.
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Affiliation(s)
- Anan Yaghmur
- Department of Pharmaceutics and Analytical Chemistry, Faculty of Pharmaceutical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark.
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Falkman P, Aberg C, Clemens A, Sparr E. Lyotropic lipid phases confined in cylindrical pores: structure and permeability. J Phys Chem B 2011; 115:14450-61. [PMID: 22007791 DOI: 10.1021/jp206451c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A model membrane system based on lipid lyotropic phases confined inside the pores of a well-defined scaffold membrane, thereby forming a double-porous membrane structure, is described. The model membrane system is characterized with regard to lipid structure, lipid location, and phase transitions, using small-angle X-ray scattering, differential scanning calorimetry, and confocal microscopy. The system enables studies of transport across oriented lipid bilayers as well as of lipids in confinement. The lipids are shown to be located inside the membrane pores, and the effect of confinement on lipid structure is shown to be small, although dependent on the surface properties of the scaffold membrane. For transport studies, Franz diffusion cells and different types of drugs/dyes are used, and the transport studies are complemented with theoretical modeling. Lipids investigated include monoolein, dioleoyl phosphatidylcholine, dimyristoyl phosphatidylcholine, and E. coli total lipid extract. In the case of monoolein, the lipid structure can be changed from a bicontinuous cubic Ia3d phase to a liquid crystalline lamellar phase, by controlling the osmotic pressure of the surrounding solution through addition of water-soluble polymer. The osmotic pressure can thereby be used as a switch, changing the permeability of the lipid phase up to 100-fold, depending on the properties of the diffusing substance. The large effect of changing the structure implies an alignment of the lamellar phase inside the pores.
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Affiliation(s)
- Peter Falkman
- Physical Chemistry, Chemical Center, Lund University, Lund, Sweden
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Ammar HO, Ghorab M, Mahmoud AA, Makram TS, Noshi SH. Topical liquid crystalline gel containing lornoxicam/cyclodextrin complex. J INCL PHENOM MACRO 2011. [DOI: 10.1007/s10847-011-0039-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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42
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Nanostructured liquid crystalline particles provide long duration sustained-release effect for a poorly water soluble drug after oral administration. J Control Release 2011; 153:180-6. [DOI: 10.1016/j.jconrel.2011.03.033] [Citation(s) in RCA: 151] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Revised: 02/23/2011] [Accepted: 03/31/2011] [Indexed: 11/22/2022]
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43
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Structural characterization and in vivo evaluation of retinyl palmitate in non-ionic lamellar liquid crystalline system. Colloids Surf B Biointerfaces 2011; 85:182-8. [DOI: 10.1016/j.colsurfb.2011.02.027] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2010] [Revised: 02/17/2011] [Accepted: 02/19/2011] [Indexed: 11/23/2022]
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A hydrogen peroxide biosensor based on the direct electron transfer of hemoglobin encapsulated in liquid-crystalline cubic phase on electrode. Colloids Surf B Biointerfaces 2011; 82:359-64. [DOI: 10.1016/j.colsurfb.2010.09.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2010] [Revised: 09/04/2010] [Accepted: 09/07/2010] [Indexed: 11/18/2022]
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45
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Nguyen TH, Hanley T, Porter CJ, Larson I, Boyd BJ. Phytantriol and glyceryl monooleate cubic liquid crystalline phases as sustained-release oral drug delivery systems for poorly water soluble drugs I. Phase behaviour in physiologically-relevant media. J Pharm Pharmacol 2010. [DOI: 10.1211/jpp.62.07.0005] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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46
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Zanatta CF, Sato AMCDF, Camargo Junior FBD, Campos PMBGM, Rocha-Filho PA. Rheological behavior, zeta potential, and accelerated stability tests of Buriti oil (Mauritia flexuosa) emulsions containing lyotropic liquid crystals. Drug Dev Ind Pharm 2010; 36:93-101. [DOI: 10.3109/03639040903099728] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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47
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Mohammady SZ, Pouzot M, Mezzenga R. Oleoylethanolamide-based lyotropic liquid crystals as vehicles for delivery of amino acids in aqueous environment. Biophys J 2009; 96:1537-46. [PMID: 19217870 DOI: 10.1016/j.bpj.2008.10.057] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2008] [Accepted: 10/08/2008] [Indexed: 11/28/2022] Open
Abstract
We have investigated the phase behavior of self-assembled lyotropic liquid crystals (LC) formed by ternary mixtures of oleoylethanolamide (OEA), water and arginine. OEA, a natural analog of the endogenous cannabinoid anandamide involved in the peripheral regulation of feeding, was selected as a main component due to its capacity to induce efficient decreases in food intake and gains in body mass. Arginine was selected as representative hydrophilic amino acid and added to the OEA-water mixture at different concentrations. The phase diagrams were determined by combining cross-polarized optical microscopy and small angle x-ray scattering. First, the phase diagram for the OEA-water system was determined. It was shown that these two compounds give rise to reverse Ia3d double gyroid and reverse Pn3m double diamond cubic phases existing in bulk over a large window of temperature and composition, and that for water content beyond 25% Pn3m coexisted with excess water. Successively, the influence of arginine as guest molecule in the water channels of the reverse LC was investigated. For the sake of comparison, results for the OEA-water-arginine system were compared with analog series of OEA-water-glucose. The results showed that, at a fixed water content and temperature, the phase behavior of the liquid crystalline phases is strongly dependent on arginine concentration. In more detail, arginine could be encapsulated in the bulk OEA-water LC up to 2.0% wt, whereas transitions from Ia3d to Pn3m cubic phase were observed with increasing arginine concentration. Interestingly, upon an increase of water concentration beyond 20-25%, Pn3m phase started to coexist with excess water releasing the arginine in external water solution. Quantitative measurements of arginine content inside the LC water channels and in the excess external water solution revealed a complete release of the amino acid, demonstrating that the investigated lyotropic liquid crystalline systems can be used as ideal vehicles for the delivery of functional hydrophilic active molecules in aqueous environment.
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Affiliation(s)
- Sayed Z Mohammady
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
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Zhang J, Zheng L, Bai X, Yu L. Drug-Induced Phase Transition from Cubic Phase to Vesicle. J DISPER SCI TECHNOL 2008. [DOI: 10.1080/01932690701781352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Rowinski P, Rowinska M, Heller A. Liquid Crystal Membranes for Serum-Compatible Diabetes Management-Assisting Subcutaneously Implanted Amperometric Glucose Sensors. Anal Chem 2008; 80:1746-55. [DOI: 10.1021/ac702151u] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pawel Rowinski
- Department of Chemical Engineering, University of Texas, Austin, Texas 78712
| | - Magdalena Rowinska
- Department of Chemical Engineering, University of Texas, Austin, Texas 78712
| | - Adam Heller
- Department of Chemical Engineering, University of Texas, Austin, Texas 78712
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Bender J, Jarvoll P, Nydén M, Engström S. Structure and dynamics of a sponge phase in the methyl δ-aminolevulinate/monoolein/water/propylene glycol system. J Colloid Interface Sci 2008; 317:577-84. [DOI: 10.1016/j.jcis.2007.09.056] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2007] [Revised: 09/19/2007] [Accepted: 09/20/2007] [Indexed: 11/29/2022]
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