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Kumar D, Dua K, Tiwari S. Localized Delivery of Bioactives using Structured Liposomal Gels. Curr Pharm Des 2023; 29:3206-3220. [PMID: 37974442 DOI: 10.2174/0113816128263001231102053654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 10/03/2023] [Indexed: 11/19/2023]
Abstract
Liposomes have gained a lot of interest for drug delivery applications, and some of these preparations have been commercialized. These are formulated with biocompatible components and can be used for delivering a wide range of payloads differing in aqueous solubility and molecular weight. Liposome-based delivery approaches are limited mainly by two factors: (a) poor dispersion stability, and (b) pre-mature leakage of payloads. In this review, we have discussed the stabilization of liposomal vesicles by their entrapment in hydrogels. Studies reveal that such hydrogels can maintain the structural integrity of liposomes. Release of liposomes from the hydrogel network can be modulated through careful screening of matrix former and degree of its cross-linking. Accordingly, we have reviewed the approaches of stabilizing liposomal vesicles through entrapment in hydrogels. Application of liposome-embedded hydrogels has been reviewed in context of localized drug delivery. Our discussion is focussed on the delivery of bioactives to the skin. Such an approach appears alluring from the standpoint of minimizing the undesirable distribution of payload(s) the systemic circulation and off-target sites.
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Affiliation(s)
- Deepak Kumar
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER) - Raebareli, Lucknow 226002, India
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, New South Wales 2007, Australia
| | - Sanjay Tiwari
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER) - Raebareli, Lucknow 226002, India
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Walhout PK, He Z, Dutagaci B, Nawrocki G, Feig M. Molecular Dynamics Simulations of Rhodamine B Zwitterion Diffusion in Polyelectrolyte Solutions. J Phys Chem B 2022; 126:10256-10272. [PMID: 36440862 PMCID: PMC9813770 DOI: 10.1021/acs.jpcb.2c06281] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Polyelectrolytes continue to find wide interest and application in science and engineering, including areas such as water purification, drug delivery, and multilayer thin films. We have been interested in the dynamics of small molecules in a variety of polyelectrolyte (PE) environments; in this paper, we report simulations and analysis of the small dye molecule rhodamine B (RB) in several very simple polyelectrolyte solutions. Translational diffusion of the RB zwitterion has been measured in fully atomistic, 2 μs long molecular dynamics simulations in four different polyelectrolyte solutions. Two solutions contain the common polyanion sodium poly(styrene sulfonate) (PSS), one with a 30-mer chain and the other with 10 trimers. The other two solutions contain the common polycation poly(allyldimethylammonium) chloride (PDDA), one with two 15-mers and the other with 10 trimers. RB diffusion was also simulated in several polymer-free solutions to verify its known experimental value for the translational diffusion coefficient, DRB, of 4.7 × 10-6 cm2/s at 300 K. RB diffusion was slowed in all four simulated PE solutions, but to varying degrees. DRB values of 3.07 × 10-6 and 3.22 × 10-6 cm2/s were found in PSS 30-mer and PSS trimer solutions, respectively, whereas PDDA 15-mer and trimer solutions yielded values of 2.19 × 10-6 and 3.34 × 10-6 cm2/s. Significant associations between RB and the PEs were analyzed and interpreted via a two-state diffusion model (bound and free diffusion) that describes the data well. Crowder size effects and anomalous diffusion were also analyzed. Finally, RB translation along the polyelectrolytes during association was characterized.
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Affiliation(s)
| | - Zhe He
- Wheaton College, Chemistry Department, 501 College Ave, Wheaton, IL 60187
| | - Bercem Dutagaci
- Michigan State University, Biochemistry and Molecular Biology, 603 Wilson Road, Room 218, East Lansing, MI 48824
| | - Grzegorz Nawrocki
- Michigan State University, Biochemistry and Molecular Biology, 603 Wilson Road, Room 218, East Lansing, MI 48824
| | - Michael Feig
- Michigan State University, Biochemistry and Molecular Biology, 603 Wilson Road, Room 218, East Lansing, MI 48824
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Cui J, Jin H, Zhan W. Enzyme-Free Liposome Active Motion via Asymmetrical Lipid Efflux. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:11468-11477. [PMID: 36084317 DOI: 10.1021/acs.langmuir.2c01866] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
As a class of biocompatible, water-dispersed colloids, liposomes have found widespread applications ranging from food to drug delivery. Adding mobility to these colloids, i.e., liposome micromotors, represents an attractive approach to next-generation liposome carriers with enhanced functionality and effectiveness. Currently, it remains unclear as to the scope of material features useful for building liposome micromotors or how they may differ functionally from their inorganic/polymer counterparts. In this work, we demonstrate liposome active motion taking advantage of mainly a pair of intrinsic material properties associated with these assemblies: lipid phase separation and extraction. We show that global phase separation of ternary lipid systems (such as DPPC/DOPC/cholesterol) within individual liposomes yields stable Janus particles with two distinctive liquid domains. While these anisotropic liposomes undergo pure Brownian diffusion in water, similar to their homogeneous analogues, adding extracting agents, cyclodextrins, to the system triggers asymmetrical cholesterol efflux about the liposomes, setting the latter into active motion. We present detailed analyses of liposome movement and cholesterol extraction kinetics to establish their correlation. We explore various experimental parameters as well as mechanistic details to account for such motion. Our results highlight the rich possibility to hierarchically design lipid-based artificial motors, from individual lipids, to their organization, surface chemistry, and interfacial mechanics.
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Affiliation(s)
- Jinyan Cui
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Hui Jin
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Wei Zhan
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
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Pal S, Chakrabarti J. Heterogeneity of dynamics in a modulated colloidal liquid. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2020; 32:124001. [PMID: 31766036 DOI: 10.1088/1361-648x/ab5b29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We study the dynamics of a system of two dimensional colloidal particles subjected to a spatially periodic external potential using Brownian dynamics simulations. We characterize the dynamics in the system by the mean square displacements and the self-van Hove function. The static density plots suggest that system gets into modulated liquid phase in presence of the external potential. We find that diffusion coefficients, obtained from long time mean sqaure displacements, decay exponentially with increasing potential strength. The self-van Hove functions computed from the distribution of particle displacemets in a given time interval show non-gaussian behaviour in directions both parallel and transverse to the external modulation. This suggests heterogeneous dynamics and is supported by particle mobilities and residence times.
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Affiliation(s)
- Suravi Pal
- Technical Research Centre, S. N. Bose National Centre for Basic Sciences, JD Block, Sector-III, Salt Lake, Kolkata 700106, India
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Jain R, Sebastian KL. Diffusing diffusivity: Rotational diffusion in two and three dimensions. J Chem Phys 2017; 146:214102. [PMID: 28576093 PMCID: PMC5453791 DOI: 10.1063/1.4984085] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 05/11/2017] [Indexed: 11/14/2022] Open
Abstract
We consider the problem of calculating the probability distribution function (pdf) of angular displacement for rotational diffusion in a crowded, rearranging medium. We use the diffusing diffusivity model and following our previous work on translational diffusion [R. Jain and K. L. Sebastian, J. Phys. Chem. B 120, 3988 (2016)], we show that the problem can be reduced to that of calculating the survival probability of a particle undergoing Brownian motion, in the presence of a sink. We use the approach to calculate the pdf for the rotational motion in two and three dimensions. We also propose new dimensionless, time dependent parameters, αrot,2D and αrot,3D, which can be used to analyze the experimental/simulation data to find the extent of deviation from the normal behavior, i.e., constant diffusivity, and obtain explicit analytical expressions for them, within our model.
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Affiliation(s)
- Rohit Jain
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - K L Sebastian
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
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Abstract
Microrheology provides a technique to probe the local viscoelastic properties and dynamics of soft materials at the microscopic level by observing the motion of tracer particles embedded within them. It is divided into passive and active microrheology according to the force exerted on the embedded particles. Particles are driven by thermal fluctuations in passive microrheology, and the linear viscoelasticity of samples can be obtained on the basis of the generalized Stokes-Einstein equation. In active microrheology, tracer particles are controlled by external forces, and measurements can be extended to the nonlinear regime. Microrheology techniques have many advantages such as the need for only small sample amounts and a wider measurable frequency range. In particular, microrheology is able to examine the spatial heterogeneity of samples at the microlevel, which is not possible using traditional rheology. Therefore, microrheology has considerable potential for studying the local mechanical properties and dynamics of soft matter, particularly complex fluids, including solutions, dispersions, and other colloidal systems. Food products such as emulsions, foams, or gels are complex fluids with multiple ingredients and phases. Their macroscopic properties, such as stability and texture, are closely related to the structure and mechanical properties at the microlevel. In this article, the basic principles and methods of microrheology are reviewed, and the latest developments and achievements of microrheology in the field of food science are presented.
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Affiliation(s)
- Nan Yang
- Glyn O. Phillips Hydrocolloid Research Centre, School of Food and Biological Engineering, and Hubei Collaborative Innovation Centre for Industrial Fermentation, Hubei University of Technology, Wuhan 430068, China;
| | - Ruihe Lv
- Glyn O. Phillips Hydrocolloid Research Centre, School of Food and Biological Engineering, and Hubei Collaborative Innovation Centre for Industrial Fermentation, Hubei University of Technology, Wuhan 430068, China;
| | - Junji Jia
- School of Physics and Technology, Wuhan University, Wuhan 430072, China
| | - Katsuyoshi Nishinari
- Glyn O. Phillips Hydrocolloid Research Centre, School of Food and Biological Engineering, and Hubei Collaborative Innovation Centre for Industrial Fermentation, Hubei University of Technology, Wuhan 430068, China;
| | - Yapeng Fang
- Glyn O. Phillips Hydrocolloid Research Centre, School of Food and Biological Engineering, and Hubei Collaborative Innovation Centre for Industrial Fermentation, Hubei University of Technology, Wuhan 430068, China;
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Sanchez L, Patton P, Anthony SM, Yi Y, Yu Y. Tracking single-particle rotation during macrophage uptake. SOFT MATTER 2015; 11:5346-52. [PMID: 26059797 PMCID: PMC4657870 DOI: 10.1039/c5sm00893j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We investigated the rotational dynamics of single microparticles during their internalization by macrophage cells. The microparticles used were triblock patchy particles that display two fluorescent patches on their two poles. The optical anisotropy made it possible to directly visualize and quantify the orientation and rotation of the particles. We show that particles exhibit a mixture of fast and slow rotation as they are uptaken by macrophages and transiently undergo directional rotation during their entry into the cell. The size of the particles and the surface presentation of ligands exerted a negligible influence on this heterogeneity of particle rotation.
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Affiliation(s)
- Lucero Sanchez
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, USA.
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Babaye Khorasani F, Poling-Skutvik R, Krishnamoorti R, Conrad JC. Mobility of Nanoparticles in Semidilute Polyelectrolyte Solutions. Macromolecules 2014. [DOI: 10.1021/ma501248u] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Firoozeh Babaye Khorasani
- Department of Chemical and
Biomolecular Engineering, University of Houston, Houston, Texas 77204-4004, United States
| | - Ryan Poling-Skutvik
- Department of Chemical and
Biomolecular Engineering, University of Houston, Houston, Texas 77204-4004, United States
| | - Ramanan Krishnamoorti
- Department of Chemical and
Biomolecular Engineering, University of Houston, Houston, Texas 77204-4004, United States
| | - Jacinta C. Conrad
- Department of Chemical and
Biomolecular Engineering, University of Houston, Houston, Texas 77204-4004, United States
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Moschakis T. Microrheology and particle tracking in food gels and emulsions. Curr Opin Colloid Interface Sci 2013. [DOI: 10.1016/j.cocis.2013.04.011] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Wang B, Kuo J, Bae SC, Granick S. When Brownian diffusion is not Gaussian. NATURE MATERIALS 2012; 11:481-5. [PMID: 22614505 DOI: 10.1038/nmat3308] [Citation(s) in RCA: 273] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Affiliation(s)
- Bo Wang
- Department of Materials Science and Engineering, University of Illinois, Urbana, Illinois 61801, USA
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Lopes S, Simeonova M, Gameiro P, Rangel M, Ivanova G. Interaction of 5-fluorouracil loaded nanoparticles with 1,2-dimyristoyl-sn-glycero-3-phosphocholine liposomes used as a cellular membrane model. J Phys Chem B 2011; 116:667-75. [PMID: 22148190 DOI: 10.1021/jp210088n] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Nuclear magnetic resonance (NMR) spectroscopy and steady-state fluorescence anisotropy were used to study the behavior and interaction of 5-fluorouracil, both in a free form (5FU) and included in the polymer matrix of poly(butylcyanoacrylate) nanoparticles (5FUPBCN) with a phospholipid bilayer of large unilammellar vesicles composed of 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC), as a model system of biomembranes. The results confirm an interaction and penetration of 5FU into the phospholipid bilayer of DMPC liposomes. Different mechanisms of drug transfer from the aqueous environment into the model membrane environment, for the free drug and that incorporated into polymer nanoparticles, are suggested: (i) concentration-dependent reversible diffusion of the free 5FU and (ii) sustained 5FU release from nanoparticles adsorbed on the liposome surface resulting in continuous delivery of the drug into the phospholipid bilayers of the DMPC liposomes.
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Affiliation(s)
- Silvia Lopes
- REQUIMTE, Departamento de Química, Faculdade de Ciências, Universidade do Porto, Porto, Portugal
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