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Adeshina MA, Lee H, Mareddi B, Kang D, Ogunleye AM, Kim H, Kim T, Choi M, Park H, Park J. Liquid phase IR detector based on the photothermal effect of reduced graphene oxide-doped liquid crystals. NANOSCALE 2023; 15:2061-2066. [PMID: 36651184 DOI: 10.1039/d2nr06220h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Owing to the additional functionalities endowed by nanoparticle dopants, liquid crystals doped with nanoparticles are promising optical materials in a wide range of applications. In this study, we exploited the photothermal effect of reduced graphene oxide (rGO)-doped 5CB nematic liquid crystals (LC-rGO) to develop an infrared (IR) detector that is not only sensitive to IR but also measures the temperature and energy deposited in the detector. We demonstrate that rGO doping in LCs significantly enhances the IR absorption and transforms the light energy into thermal energy through the photothermal effect. The changes in the orientational order and birefringence of the LC-rGO induced by the photothermal effect under IR irradiation were manifested as an instantaneous color change in the white light probe beam. The change in the probe beam intensity was further translated into a temperature change and energy deposited in the detector. We also demonstrated that the external voltage applied to the detector significantly amplifies the photothermal responsivity by compensating for the anchoring energy of the LC. This study proposes a novel technology for detecting IR, temperature, and energy deposited in the detector by means of visible light, which has significant potential for developing large-area and high-resolution IR detectors by exploiting mature liquid crystal display technologies.
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Affiliation(s)
- Mohammad A Adeshina
- School of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea.
| | - Hakseon Lee
- School of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea.
| | - BharathKumar Mareddi
- IMEC, Leuven, Department of Electrical Engineering, KU Leuven, Leuven 3001, Belgium
| | - Daekyung Kang
- Department of Biomedical Convergence Science and Technology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Abdulazeez M Ogunleye
- School of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea.
| | - Hyunmin Kim
- Department of Interdisciplinary Engineering, DGIST, Daegu 42988, Republic of Korea
| | - Taewan Kim
- Department of Electrical Engineering and Smart Grid Research Center, Jeonbuk National University, Jeonju 54896, Korea
| | - Muhan Choi
- School of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea.
| | - Hongsik Park
- School of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea.
| | - Jonghoo Park
- School of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea.
- Department of Biomedical Convergence Science and Technology, Kyungpook National University, Daegu 41566, Republic of Korea
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2
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Khan NF, Salim M, Binte Abu Bakar SY, Ristroph K, Prud'homme RK, Hawley A, Boyd BJ, Clulow AJ. Small-volume in vitro lipid digestion measurements for assessing drug dissolution in lipid-based formulations using SAXS. Int J Pharm X 2022; 4:100113. [PMID: 35243327 PMCID: PMC8881665 DOI: 10.1016/j.ijpx.2022.100113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 01/31/2022] [Indexed: 11/30/2022] Open
Abstract
Lipid-based formulations improve the absorption capacity of poorly-water-soluble drugs and digestion of the formulation is a critical step in that absorption process. A recent approach to understanding the propensity for drug to dissolve in digesting lipid-based formulations couples an in vitro pH-stat lipolysis model to small-angle X-ray scattering (SAXS) by means of a flow-through capillary. However, the conventional pH-stat apparatus used to measure the extent of lipid digestion during such experiments requires digest volumes of 15–30 mL and drug doses of 50–200 mg, which is problematic for scarce compounds and can require excessive amounts of formulation reagents. This manuscript describes an approach to reduce the amount of material required for in vitro lipolysis experiments coupled to SAXS, for use in instances where the amount of drug or formulation medium is limited. Importantly, this was achieved while maintaining the pH stat conditions, which is critical for maintaining biorelevance and driving digestion to completion. The digestibility of infant formula with the poorly-water-soluble drugs halofantrine and clofazimine dispersed into it was measured as an exemplar paediatric-friendly lipid formulation. Halofantrine was incorporated in its powdered free base form and clofazimine was incorporated both as unformulated drug powder and as drug in nanoparticulate form prepared using Flash NanoPrecipitation. The fraction of triglyceride digested was found to be independent of vessel size and the incorporation of drug. The dissolution of the two forms of clofazimine during the digestion of infant formula were then measured using synchrotron SAXS, which revealed complete and partial solubilisation over 30 min of digestion for the powdered drug and nanoparticle formulations, respectively. The main challenge in reducing the volume of the measurements was in ensuring that thorough mixing was occurring in the smaller digestion vessel to provide uniform sampling of the dispersion medium.
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3
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Sun X, Du JD, Hawley A, Tan A, Boyd BJ. Magnetically-stimulated transformations in the nanostructure of PEGylated phytantriol-based nanoparticles for on-demand drug release. Colloids Surf B Biointerfaces 2021; 207:112005. [PMID: 34339967 DOI: 10.1016/j.colsurfb.2021.112005] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 07/17/2021] [Accepted: 07/22/2021] [Indexed: 11/15/2022]
Abstract
Lipid-based liquid crystalline (LLC) systems are formed by the self-assembly of lipid materials in aqueous environments. The internal nanostructures of LLC systems can be manipulated using remote stimuli and have the potential to serve as 'on-demand' drug delivery systems. In this study, a magnetically-responsive system that displayed a transition in nanostructure from liposomes to cubosomes/hexasomes under external alternating magnetic field (AMF) was established by the incorporation of iron oxide nanoparticles (IONPs) into a PEGylated phytantriol (PHYT)-based LLC system. Small angle X-ray scattering (SAXS) was utilized to assess the equilibrium phase behaviour of the systems with different compositions of the lipids to find the optimized formulation. Time-resolved SAXS was then used to determine the dynamic transformation of nanostructures of the IONP-containing systems with the activation of AMF. The formulation containing PHYT and DSPE-PEG2000 at a 95 to 5 molar percent ratio produced a transition from lamellar phase to bicontinuous cubic phase, showing a slow-to-fast drug release profile. Inclusion of either 5 nm or 15 nm IONPs imparted magnetic-responsiveness to the system. The magnetically-responsive system produced an 'on-demand' drug delivery system from which the drug release was able to be triggered externally by AMF-stimulation.
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Affiliation(s)
- Xiaohan Sun
- 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
| | - Joanne D Du
- 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
| | - Adrian Hawley
- Australian Synchrotron, ANSTO, 800 Blackburn Rd, Clayton, VIC, 3168, Australia
| | - Angel Tan
- 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
| | - Ben J Boyd
- 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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4
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Jia S, Graham B, Capuano B, Tan A, Hawley A, Boyd BJ. Hexaarylbiimidazoles(HABI)-functionalized lyotropic liquid crystalline systems as visible light-responsive materials. J Colloid Interface Sci 2020; 579:379-390. [PMID: 32615481 DOI: 10.1016/j.jcis.2020.06.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 06/02/2020] [Accepted: 06/02/2020] [Indexed: 12/11/2022]
Abstract
Hexaarylbiimidazoles (HABIs) are a promising class of photoswitchable molecule that have received little attention in the literature. Among them, (2,2'-dimethoxydiphenylimidazole)-1,1'-binaphthyl (HABI1) displays unusual negative photochromism and is responsive to green light. This study investigates the potential of HABIs to serve as photo-responsive actuators controlling the structure of lyotropic liquid crystalline (LLC) materials. HABI1 with four methyl chains and HABI2 with four dodecyl chains were synthesized. Time resolved small angle X-ray scattering was used to characterize the potential disruptive effects of HABIs on the nanostructure of LLC systems. HABIs underwent rapid isomerization under irradiation, with a very slow reversion in the dark in toluene and in the LLC matrix, demonstrating excellent stability and photo-fatigue resistant. HABIs completely triggered phase transitions in the phytantriol-based materials, and HABI2 generated a greater disruption than HABI1 on the lipid packing due to the enhanced steric influence. Tuning the lipid composition yielded systems that transitioned from a "slow release" lamellar phase to a "burst release" bicontinuous cubic phase upon light irradiation. Such systems therefore may exhibit a triggered release behavior upon a short time of irradiation, showing great potential in "on demand" drug delivery.
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Affiliation(s)
- Shiyang Jia
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Bim Graham
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Ben Capuano
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Angel Tan
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 381 Royal Parade, Parkville, VIC 3052, Australia; 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
| | - Adrian Hawley
- SAXS/WAXS Beamline, Australian Synchrotron, Clayton, VIC, Australia
| | - Ben J Boyd
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 381 Royal Parade, Parkville, VIC 3052, Australia; 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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5
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Mendozza M, Balestri A, Montis C, Berti D. Controlling the Kinetics of an Enzymatic Reaction through Enzyme or Substrate Confinement into Lipid Mesophases with Tunable Structural Parameters. Int J Mol Sci 2020; 21:ijms21145116. [PMID: 32698376 PMCID: PMC7404178 DOI: 10.3390/ijms21145116] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 07/15/2020] [Accepted: 07/17/2020] [Indexed: 12/15/2022] Open
Abstract
Lipid liquid crystalline mesophases, resulting from the self-assembly of polymorphic lipids in water, have been widely explored as biocompatible drug delivery systems. In this respect, non-lamellar structures are particularly attractive: they are characterized by complex 3D architectures, with the coexistence of hydrophobic and hydrophilic regions that can conveniently host drugs of different polarities. The fine tunability of the structural parameters is nontrivial, but of paramount relevance, in order to control the diffusive properties of encapsulated active principles and, ultimately, their pharmacokinetics and release. In this work, we investigate the reaction kinetics of p-nitrophenyl phosphate conversion into p-nitrophenol, catalysed by the enzyme Alkaline Phosphatase, upon alternative confinement of the substrate and of the enzyme into liquid crystalline mesophases of phytantriol/H2O containing variable amounts of an additive, sucrose stearate, able to swell the mesophase. A structural investigation through Small-Angle X-ray Scattering, revealed the possibility to finely control the structure/size of the mesophases with the amount of the included additive. A UV-vis spectroscopy study highlighted that the enzymatic reaction kinetics could be controlled by tuning the structural parameters of the mesophase, opening new perspectives for the exploitation of non-lamellar mesophases for confinement and controlled release of therapeutics.
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6
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Chen W, Goldys EM, Deng W. Light-induced liposomes for cancer therapeutics. Prog Lipid Res 2020; 79:101052. [DOI: 10.1016/j.plipres.2020.101052] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 07/05/2020] [Accepted: 07/08/2020] [Indexed: 12/13/2022]
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7
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Mertins O, Mathews PD, Angelova A. Advances in the Design of pH-Sensitive Cubosome Liquid Crystalline Nanocarriers for Drug Delivery Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E963. [PMID: 32443582 PMCID: PMC7281514 DOI: 10.3390/nano10050963] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 04/29/2020] [Accepted: 05/03/2020] [Indexed: 01/10/2023]
Abstract
Nanostructure bicontinuous cubic phase self-assembled materials are receiving expanding applications as biocompatible delivery systems in various therapeutic fields. The functionalization of cubosome, spongosome, hexosome and liposome nanocarriers by pH-sensitive lipids and/or pH-sensitive polymer shells offers new opportunities for oral and topical drug delivery towards a new generation of cancer therapies. The electrochemical behavior of drug compounds may favor pH-triggered drug release as well. Here, we highlight recent investigations, which explore the phase behavior of mixed nonlamellar lipid/fatty acid or phospholipid systems for the design of pH-responsive and mucoadhesive drug delivery systems with sustained-release properties. X-ray diffraction and small-angle X-ray scattering (SAXS) techniques are widely used in the development of innovative delivery assemblies through detailed structural analyses of multiple amphiphilic compositions from the lipid/co-lipid/water phase diagrams. pH-responsive nanoscale materials and nanoparticles are required for challenging therapeutic applications such as oral delivery of therapeutic proteins and peptides as well as of poorly water-soluble substances. Perspective nanomedicine developments with smart cubosome nanocarriers may exploit compositions elaborated to overcome the intestinal obstacles, dual-drug loaded pH-sensitive liquid crystalline architectures aiming at enhanced therapeutic efficacy, as well as composite (lipid/polyelectrolyte) types of mucoadhesive controlled release colloidal cubosomal formulations for the improvement of the drugs' bioavailability.
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Affiliation(s)
- Omar Mertins
- Institut Galien Paris-Saclay UMR8612, Université Paris-Saclay, CNRS, F-92296 Châtenay-Malabry, France;
- Laboratory of Nano Bio Materials (LNBM), Department of Biophysics, Paulista Medical School, Federal University of Sao Paulo (UNIFESP), Sao Paulo 04023-062, Brazil;
| | - Patrick D. Mathews
- Laboratory of Nano Bio Materials (LNBM), Department of Biophysics, Paulista Medical School, Federal University of Sao Paulo (UNIFESP), Sao Paulo 04023-062, Brazil;
- Muséum National d’Histoire Naturelle, Sorbonne Université, CP 26, 75231 Paris, France
| | - Angelina Angelova
- Institut Galien Paris-Saclay UMR8612, Université Paris-Saclay, CNRS, F-92296 Châtenay-Malabry, France;
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8
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Sun X, Alcaraz N, Qiao R, Hawley A, Tan A, Boyd BJ. Magnetically-stimulated transformations in nanostructure of lipid mesophases: Effect of structure of iron oxide nanoparticles. Colloids Surf B Biointerfaces 2020; 191:110965. [PMID: 32220812 DOI: 10.1016/j.colsurfb.2020.110965] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 03/01/2020] [Accepted: 03/09/2020] [Indexed: 02/02/2023]
Abstract
Nanostructured lipid-based liquid crystalline (LLC) systems can display different drug release rates and also be stimuli-responsive, rendering them the potential to serve as 'on-demand' drug delivery systems. In this study, a magnetically-responsive cubic phase nanocomposite was engineered by doping iron oxide nanoparticles (IONPs) into a phytantriol (PHYT)-based lipid that exhibits transformation in nanostructure under external alternating magnetic field (AMF). The effects of IONP surface hydrophilicity/hydrophobicity, size and concentration were determined in dispersed systems, and the effect of hydration state of the system was also assessed. Time-resolved small angle X-ray scattering (SAXS) was used to probe the impact of these variables on the transformation of nanostructure with and without the application of AMF. The inclusion of both hydrophobic and hydrophilic IONPs reduced the temperature of the phase transition from the inverted bicontinuous cubic (V2) phase to inverted hexagonal (H2) phase and imparted magnetic-responsiveness to the systems. The size of the IONPs played an important role in governing the phase reversibility of the dispersed systems, while the concentration of the IONPs had more impact on the phase behaviour of the bulk systems. These successfully demonstrated a completely reversible magneto-responsive phase transition in the nanostructured LLC systems through optimising the selection of IONPs.
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Affiliation(s)
- Xiaohan Sun
- 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
| | - Nicolas Alcaraz
- 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
| | - Ruirui Qiao
- 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; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Qld, 4072, Australia
| | - Adrian Hawley
- Australian Synchrotron, ANSTO, 800 Blackburn Rd, Clayton, VIC, 3168, Australia
| | - Angel Tan
- 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
| | - Ben J Boyd
- 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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9
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Understanding the assembly of amphiphilic additives in bulk and dispersed non-lamellar lipid-based matrices: Phosphorylation, H-bonding and ionisation. J Colloid Interface Sci 2020; 562:502-510. [DOI: 10.1016/j.jcis.2019.11.087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 11/19/2019] [Accepted: 11/19/2019] [Indexed: 11/18/2022]
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10
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Coupling in vitro cell culture with synchrotron SAXS to understand the bio-interaction of lipid-based liquid crystalline nanoparticles with vascular endothelial cells. Drug Deliv Transl Res 2020; 10:610-620. [DOI: 10.1007/s13346-020-00718-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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11
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Mendozza M, Caselli L, Salvatore A, Montis C, Berti D. Nanoparticles and organized lipid assemblies: from interaction to design of hybrid soft devices. SOFT MATTER 2019; 15:8951-8970. [PMID: 31680131 DOI: 10.1039/c9sm01601e] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
This contribution reviews the state of art on hybrid soft matter assemblies composed of inorganic nanoparticles (NP) and lamellar or non-lamellar lipid bilayers. After a short outline of the relevant energetic contributions, we address the interaction of NPs with synthetic lamellar bilayers, meant as cell membrane mimics. We then review the design of hybrid nanostructured materials composed of lipid bilayers and some classes of inorganic NPs, with particular emphasis on the effects on the amphiphilic phase diagram and on the additional properties contributed by the NPs. Then, we present the latest developments on the use of lipid bilayers as coating agents for inorganic NPs. Finally, we remark on the main achievements of the last years and our vision for the development of the field.
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Affiliation(s)
- Marco Mendozza
- Department of Chemistry "Ugo Schiff", University of Florence, and CSGI (Italian Center for Colloid and Surface Science, Via della Lastruccia 3, Sesto Fiorentino, 50019 Firenze, Italy.
| | - Lucrezia Caselli
- Department of Chemistry "Ugo Schiff", University of Florence, and CSGI (Italian Center for Colloid and Surface Science, Via della Lastruccia 3, Sesto Fiorentino, 50019 Firenze, Italy.
| | - Annalisa Salvatore
- Department of Chemistry "Ugo Schiff", University of Florence, and CSGI (Italian Center for Colloid and Surface Science, Via della Lastruccia 3, Sesto Fiorentino, 50019 Firenze, Italy.
| | - Costanza Montis
- Department of Chemistry "Ugo Schiff", University of Florence, and CSGI (Italian Center for Colloid and Surface Science, Via della Lastruccia 3, Sesto Fiorentino, 50019 Firenze, Italy.
| | - Debora Berti
- Department of Chemistry "Ugo Schiff", University of Florence, and CSGI (Italian Center for Colloid and Surface Science, Via della Lastruccia 3, Sesto Fiorentino, 50019 Firenze, Italy.
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12
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Perspectives in Liquid-Crystal-Aided Nanotechnology and Nanoscience. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9122512] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The research field of liquid crystals and their applications is recently changing from being largely focused on display applications and optical shutter elements in various fields, to quite novel and diverse applications in the area of nanotechnology and nanoscience. Functional nanoparticles have recently been used to a significant extent to modify the physical properties of liquid crystals by the addition of ferroelectric and magnetic particles of different shapes, such as arbitrary and spherical, rods, wires and discs. Also, particles influencing optical properties are increasingly popular, such as quantum dots, plasmonic, semiconductors and metamaterials. The self-organization of liquid crystals is exploited to order templates and orient nanoparticles. Similarly, nanoparticles such as rods, nanotubes and graphene oxide are shown to form lyotropic liquid crystal phases in the presence of isotropic host solvents. These effects lead to a wealth of novel applications, many of which will be reviewed in this publication.
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13
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Mendozza M, Caselli L, Montis C, Orazzini S, Carretti E, Baglioni P, Berti D. Inorganic nanoparticles modify the phase behavior and viscoelastic properties of non-lamellar lipid mesophases. J Colloid Interface Sci 2019; 541:329-338. [DOI: 10.1016/j.jcis.2019.01.091] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 01/21/2019] [Accepted: 01/22/2019] [Indexed: 11/30/2022]
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14
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Wang H, Zetterlund PB, Boyer C, Boyd BJ, Atherton TJ, Spicer PT. Large Hexosomes from Emulsion Droplets: Particle Shape and Mesostructure Control. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:13662-13671. [PMID: 30350705 DOI: 10.1021/acs.langmuir.8b02638] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Soft, rotationally symmetric particles of dispersed hexagonal liquid crystalline phase are produced using a method previously developed for cubosome microparticle production. The technique forms hexosome particles via removal of ethanol from emulsion droplets containing monoolein, water, and one of the various hydrophobic molecules: vitamin E, hexadecane, oleic acid, cyclohexane, or divinylbenzene. The unique rotational symmetry of the particles is characterized by optical microscopy and small-angle X-ray scattering to link particle phase, shape, and structure to composition. Rheology of the soft particles can be varied independently of shape, enabling control of transport, deformation, and biological response by controlling composition and molecular structure of the additives. The direct observations of formation, and the resultant hexosome shapes, link the particle-scale and mesoscale properties of these novel self-assembled particles and broaden their applications. The micron-scale hexosomes provide a route to understanding the effects of particle size, crystallization rate, and rheology on the production of soft particles with liquid crystalline structure and unique shape and symmetry.
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Affiliation(s)
| | | | | | - Ben J Boyd
- Monash Institute of Pharmaceutical Sciences , Monash University , Melbourne 3800 , Australia
| | - Timothy J Atherton
- Department Physics and Astronomy , Tufts University , Boston 02155 , Massachusetts , United States
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15
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Deuterated phytantriol - A versatile compound for probing material distribution in liquid crystalline lipid phases using neutron scattering. J Colloid Interface Sci 2018; 534:399-407. [PMID: 30245337 DOI: 10.1016/j.jcis.2018.09.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 09/06/2018] [Accepted: 09/06/2018] [Indexed: 11/22/2022]
Abstract
Phytantriol is an interfacially-active lipid that is chemically robust, non-digestible and forms particles with internal bicontinuous cubic phase structures (cubosomes) when dispersed with non-ionic surfactants at ambient and physiological temperatures. The liquid crystalline internal structure of phytantriol-based cubosomes can be changed to alter the interfacial contact area/topology with the aqueous dispersant to trigger bioactive payload release or to alter the local membrane curvature around bound or embedded proteins. To enable the study of payload distribution, structure and transformation kinetics within phytantriol particles by neutron scattering techniques it is desirable to have access to a deuterated version of this molecule but to date a synthetic route has not been available. The first successful synthesis of phytantriol-d39 is presented here alongside a preliminary physical characterisation of related particle structures when phytantriol-d39 is dispersed using two non-ionic surfactants, Tween® 80 and Pluronic® F127. Synchrotron small angle X-ray scattering (SAXS) was used to confirm that phytantriol-d39-based nanoparticles in D2O form similar liquid crystalline structures to those of their natural isotopic abundance (phytantriol/H2O) counterparts as a function of temperature. Finally, small angle neutron scattering (SANS) with solvent contrast to match out the phytantriol-d39 structuring was used to show that the spatial correlations between the Tween® and Pluronic® non-ionic surfactant molecules are different within dispersed phytantriol-d39 particles with different liquid crystalline structures in D2O. The surfactant molecules in phytantriol-d39/Tween® 80 particles with Im3m cubic structures were found to follow a self-avoiding walk, whereas in phytantriol-d39/Pluronic® F127 particles with Pn3m cubic structures they were found to follow a more rod-like packing arrangement.
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16
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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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17
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Quinn MDJ, Wang T, Du JD, Boyd BJ, Hawley A, Notley SM. Graphene as a photothermal actuator for control of lipid mesophase structure. NANOSCALE 2017; 9:341-348. [PMID: 27922645 DOI: 10.1039/c6nr08185a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The optical density of pristine graphene is high and broad in the near infrared region of the electromagnetic spectrum positioning this material as a highly efficient photothermal agent for in vivo applications. In this study, surfactant assisted exfoliated graphene was incorporated within bulk lipid samples of varying lipid types: glyceryl monoether, glyceryl monooleate and phytantriol. The pristine graphene sheets did not disrupt the packing of the liquid crystals while being in sufficiently intimate contact to provide localized heating and induce phase transitions. The phase progressions induced through heating using NIR irradiation of the entrained graphene particles within the bulk liquid crystal were studied using SAXS and confirmed using polarized optical microscopy. Increases in apparent temperature experienced by the matrix of up to 50 °C were observed by establishing a SAXS versus bulk temperature calibration curve allowing in situ measurements. The studies demonstrate the potential for use of graphene as a photothermal actuator across a range of lipid based systems of interest in controlled drug delivery.
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Affiliation(s)
- Matthew D J Quinn
- Department of Applied Mathematics, Research School of Physics and Engineering, The Australian National University, Canberra, ACT 2601, Australia.
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18
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Fong WK, Sánchez-Ferrer A, Ortelli FG, Sun W, Boyd BJ, Mezzenga R. Dynamic formation of nanostructured particles from vesicles via invertase hydrolysis for on-demand delivery. RSC Adv 2017. [DOI: 10.1039/c6ra26688f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Controlled hydrolysis via invertase action alters molecular shape and therefore lipid curvature, consequently triggering the release of encapsulated drug.
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Affiliation(s)
- Wye-Khay Fong
- ETH Zürich
- Department of Health Sciences & Technology
- 8092 Zürich
- Switzerland
- Drug Delivery, Disposition & Dynamics
| | | | | | - Wenjie Sun
- ETH Zürich
- Department of Health Sciences & Technology
- 8092 Zürich
- Switzerland
| | - Ben J. Boyd
- Drug Delivery, Disposition & Dynamics
- Monash Institute of Pharmaceutical Sciences
- Monash University
- Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology
| | - Raffaele Mezzenga
- ETH Zürich
- Department of Health Sciences & Technology
- 8092 Zürich
- Switzerland
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19
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Fong WK, Negrini R, Vallooran JJ, Mezzenga R, Boyd BJ. Responsive self-assembled nanostructured lipid systems for drug delivery and diagnostics. J Colloid Interface Sci 2016; 484:320-339. [PMID: 27623190 DOI: 10.1016/j.jcis.2016.08.077] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 08/27/2016] [Accepted: 08/30/2016] [Indexed: 01/19/2023]
Abstract
While stimuli-responsive polymers have received a huge amount of attention in the literature, responsive lipid-based mesophase systems offer unique opportunities in biomedical applications such as drug delivery and biosensing. The different mesophase equilibrium structures enables dynamic switching between nanostructures to facilitate drug release or as a transducer for recognition events. In drug delivery, this behavior offers researchers the means to deliver a therapeutic payload at a specific rate and time i.e. 'on-demand'. This review summarizes the distinctive features of these multifaceted materials and aggregates the current state of the art research from our groups and others into the use of these materials as bulk gels and nanostructured dispersions for drug delivery, biosensing and diagnostics.
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Affiliation(s)
- Wye-Khay Fong
- Food and Soft Materials Science, Department of Health Science and Technology, ETH Zurich, Schmelzbergstrasse 9, CH-8092 Zurich, Switzerland; Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Renata Negrini
- Food and Soft Materials Science, Department of Health Science and Technology, ETH Zurich, Schmelzbergstrasse 9, CH-8092 Zurich, Switzerland
| | - Jijo J Vallooran
- Food and Soft Materials Science, Department of Health Science and Technology, ETH Zurich, Schmelzbergstrasse 9, CH-8092 Zurich, Switzerland
| | - Raffaele Mezzenga
- Food and Soft Materials Science, Department of Health Science and Technology, ETH Zurich, Schmelzbergstrasse 9, CH-8092 Zurich, Switzerland.
| | - Ben J Boyd
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia.
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20
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Du JD, Fong WK, Caliph S, Boyd BJ. Lipid-based drug delivery systems in the treatment of wet age-related macular degeneration. Drug Deliv Transl Res 2016; 6:781-792. [DOI: 10.1007/s13346-016-0299-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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21
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Fong WK, Hanley TL, Thierry B, Hawley A, Boyd BJ, Landersdorfer CB. External manipulation of nanostructure in photoresponsive lipid depot matrix to control and predict drug release in vivo. J Control Release 2016; 228:67-73. [DOI: 10.1016/j.jconrel.2016.02.042] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Revised: 02/11/2016] [Accepted: 02/24/2016] [Indexed: 01/17/2023]
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22
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Tailoring liquid crystalline lipid nanomaterials for controlled release of macromolecules. Int J Pharm 2015; 495:241-248. [DOI: 10.1016/j.ijpharm.2015.08.072] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 08/21/2015] [Accepted: 08/22/2015] [Indexed: 02/03/2023]
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23
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Squires AM, Akbar S, Tousley ME, Rokhlenko Y, Singer JP, Osuji CO. Experimental Evidence for Proposed Transformation Pathway from the Inverse Hexagonal to Inverse Diamond Cubic Phase from Oriented Lipid Samples. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:7707-7711. [PMID: 26146884 DOI: 10.1021/acs.langmuir.5b01676] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A macroscopically oriented inverse hexagonal phase (HII) of the lipid phytantriol in water is converted to an oriented inverse double diamond bicontinuous cubic phase (QII(D)). The initial HII phase is uniaxially oriented about the long axis of a capillary with the cylinders parallel to the capillary axis. The HII phase is converted by cooling to a QII(D) phase which is also highly oriented, where the cylindrical axis of the former phase has been converted to a ⟨110⟩ axis in the latter, as demonstrated by small-angle X-ray scattering. This epitaxial relationship allows us to discriminate between two competing proposed geometric pathways to convert HII to QII(D). Our findings also suggest a new route to highly oriented cubic phase coatings, with applications as nanomaterial templates.
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Affiliation(s)
- Adam M Squires
- †Department of Chemistry, University of Reading, Whiteknights Campus, Reading, U.K. RG6 6AD
| | - Samina Akbar
- †Department of Chemistry, University of Reading, Whiteknights Campus, Reading, U.K. RG6 6AD
| | - Marissa E Tousley
- ‡Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520, United States
| | - Yekaterina Rokhlenko
- ‡Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520, United States
| | - Jonathan P Singer
- ‡Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520, United States
| | - Chinedum O Osuji
- ‡Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520, United States
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24
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Du JD, Fong WK, Salentinig S, Caliph SM, Hawley A, Boyd BJ. Phospholipid-based self-assembled mesophase systems for light-activated drug delivery. Phys Chem Chem Phys 2015; 17:14021-7. [DOI: 10.1039/c5cp01229e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Biocompatible phospholipid–cholesterol matrix undergoes photothermal transition on irradiation with near infrared light for drug release applications.
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Affiliation(s)
- Joanne D. Du
- Drug Delivery
- Disposition and Dynamics
- Monash Institute of Pharmaceutical Sciences
- Monash University (Parkville Campus)
- Parkville
| | - Wye-Khay Fong
- Drug Delivery
- Disposition and Dynamics
- Monash Institute of Pharmaceutical Sciences
- Monash University (Parkville Campus)
- Parkville
| | - Stefan Salentinig
- Drug Delivery
- Disposition and Dynamics
- Monash Institute of Pharmaceutical Sciences
- Monash University (Parkville Campus)
- Parkville
| | - Suzanne M. Caliph
- Drug Delivery
- Disposition and Dynamics
- Monash Institute of Pharmaceutical Sciences
- Monash University (Parkville Campus)
- Parkville
| | - Adrian Hawley
- SAXS/WAXS beamline
- Australian Synchrotron
- Clayton
- Australia
| | - Ben J. Boyd
- Drug Delivery
- Disposition and Dynamics
- Monash Institute of Pharmaceutical Sciences
- Monash University (Parkville Campus)
- Parkville
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25
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Sapkota M, Karmakar G, Nahak P, Guha P, Roy B, Koirala S, Chettri P, Das K, Misono T, Torigoe K, Panda AK. Effect of polymer charge on the formation and stability of anti-inflammatory drug loaded nanostructured lipid carriers: physicochemical approach. RSC Adv 2015. [DOI: 10.1039/c5ra11066a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Proposed model of NSAID-loaded and polymer-coated NLC along with its size dependence ( ), PDI ( ), release rate ( ), and absorption maxima ( ) as well as its morphology and antibacterial activity.
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Affiliation(s)
- Manish Sapkota
- Department of Pharmaceutics
- Himalayan Pharmacy Institute
- Majhitar, Rangpo
- India
| | - Gourab Karmakar
- Department of Chemistry
- University of North Bengal
- Darjeeling – 734013
- India
| | - Prasant Nahak
- Department of Chemistry
- University of North Bengal
- Darjeeling – 734013
- India
| | - Pritam Guha
- Department of Chemistry
- University of North Bengal
- Darjeeling – 734013
- India
| | - Biplab Roy
- Department of Chemistry
- University of North Bengal
- Darjeeling – 734013
- India
| | - Suraj Koirala
- Department of Pharmaceutics
- Himalayan Pharmacy Institute
- Majhitar, Rangpo
- India
| | - Priyam Chettri
- Department of Biotechnology
- University of North Bengal
- Darjeeling – 734013
- India
| | - Kalipada Das
- Department of Chemistry
- Bose Institute
- Kolkata 700009
- India
| | - Takeshi Misono
- Department of Pure and Applied Chemistry
- Tokyo University of Science
- Tokyo 278-8510
- Japan
| | - Kanjiro Torigoe
- Department of Pure and Applied Chemistry
- Tokyo University of Science
- Tokyo 278-8510
- Japan
| | - Amiya Kumar Panda
- Department of Chemistry
- University of North Bengal
- Darjeeling – 734013
- India
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