1
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Clark JA, Douglas JF. Do Specific Ion Effects on Collective Relaxation Arise from Perturbation of Hydrogen-Bonding Network Structure? J Phys Chem B 2024; 128:6362-6375. [PMID: 38912895 PMCID: PMC11229691 DOI: 10.1021/acs.jpcb.4c02638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 06/07/2024] [Accepted: 06/10/2024] [Indexed: 06/25/2024]
Abstract
The change in the transport properties (i.e., water diffusivity, shear viscosity, etc.) when adding salts to water has been used to classify ions as either being chaotropic or kosmotropic, a terminology based on the presumption that this phenomenon arises from respective breakdown or enhancement of the hydrogen-bonding network structure. Recent quasi-elastic neutron scattering measurements of the collective structural relaxation time, τC, in aqueous salt solutions were interpreted as confirming this proposed origin of ion effects on the dynamics of water. However, we find similar changes in τC in the same salt solutions based on molecular dynamics (MD) simulations using a coarse-grained water model in which no hydrogen bonding exists, challenging this conventional interpretation of mobility change resulting from the addition of salts to water. A thorough understanding of specific ion effects should be useful in diverse material manufacturing and biomedical applications, where these effects are prevalent, but poorly understood.
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Affiliation(s)
- Jennifer A. Clark
- Materials Science and Engineering
Division, Material Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Jack F. Douglas
- Materials Science and Engineering
Division, Material Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
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2
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Xu R, Shi X, Huang H, Tan WS, Cai H. Development of a Me 2SO-free cryopreservation medium and its long-term cryoprotection on the CAR-NK cells. Cryobiology 2024; 114:104835. [PMID: 38070820 DOI: 10.1016/j.cryobiol.2023.104835] [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: 04/22/2023] [Revised: 11/22/2023] [Accepted: 12/04/2023] [Indexed: 12/17/2023]
Abstract
Cryopreservation is a crucial step in the supply process of off-the-shelf chimeric antigen receptor engineered natural killer (CAR-NK) cell products. Concerns have been raised over the clinical application of dimethyl sulfoxide (Me2SO) due to the potential for adverse reactions following infusion and limited cell-specific cytotoxic effects if misapplied. In this study, we developed a Me2SO-free cryopreservation medium specifically tailored for CAR-NK cells to address this limitation. The cryopreservation medium was formulated using human serum albumin (HSA) and glycerol as the base components. Following initial screening of seven clinically-compatible solutions, four with cryoprotective properties were identified. These were combined and optimized into a single formulation: IF-M. The viability, phenotype, and function of CAR-NK cells were evaluated after short-term and long-term cryopreservation to assess the effectiveness of IF-M, with Me2SO serving as the control group. The viability and recovery of CAR-NK cells in the IF-M group were significantly higher than those in the Me2SO group within 90 days of cryopreservation. Moreover, after 1 year of cryopreservation the cytotoxic capacity of CAR-NK cells cryopreserved with IF-M was comparable to that of fresh CAR-NK cells and significantly superior to that of CAR-NK cells cryopreserved in Me2SO. The CD107a expression intensity of CAR-NK cells in IF-M group was significantly higher than that of Me2SO group. No statistical differences were observed in other indicators under different cryopreservation times. These results underscore the robustness of IF-M as a suitable replacement for traditional Me2SO-based cryopreservation medium for the long-term cryopreservation and clinical application of off-the-shelf CAR-NK cells.
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Affiliation(s)
- Ruisheng Xu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Xiaodi Shi
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Huimin Huang
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Wen-Song Tan
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Haibo Cai
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, PR China.
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3
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Binyaminov H, Sun H, Elliott JAW. Predicting freezing points of ternary salt solutions with the multisolute osmotic virial equation. J Chem Phys 2023; 159:244502. [PMID: 38146834 DOI: 10.1063/5.0169047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 11/05/2023] [Indexed: 12/27/2023] Open
Abstract
Previously, the multisolute osmotic virial equation with the combining rules of Elliott et al. has been shown to make accurate predictions for multisolute solutions with only single-solute osmotic virial coefficients as inputs. The original combining rules take the form of an arithmetic average for the second-order mixed coefficients and a geometric average for the third-order mixed coefficients. Recently, we derived generalized combining rules from a first principles solution theory, where all mixed coefficients could be expressed as arithmetic averages of suitable binary coefficients. In this work, we empirically extended the new model to account for electrolyte effects, including solute dissociation, and demonstrated its usefulness for calculating the properties of multielectrolyte solutions. First, the osmotic virial coefficients of 31 common salts in water were tabulated based on the available freezing point depression (FPD) data. This was achieved by polynomial fitting, where the degree of the polynomial was determined using a special criterion that accounts for the confidence intervals of the coefficients. Then, the multisolute model was used to predict the FPD of 11 ternary electrolyte solutions. Furthermore, models with the new combining rules and the original combining rules of Elliott et al. were compared using both mole fraction and molality as concentration units. We find that the mole-fraction-based model with the new combining rules performs the best and that the results agree well with independent experimental measurements with an all-system root-mean-square error of 0.24 osmoles/kg (0.45 °C) and close to zero mean bias for the entire dataset (371 data points).
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Affiliation(s)
- Hikmat Binyaminov
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Henry Sun
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Janet A W Elliott
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
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4
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Binyaminov H, Elliott JAW. Multicomponent solutions: Combining rules for multisolute osmotic virial coefficients. J Chem Phys 2023; 159:164116. [PMID: 37905682 DOI: 10.1063/5.0166482] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 09/26/2023] [Indexed: 11/02/2023] Open
Abstract
This paper presents an exploration of a specific type of a generalized multicomponent solution model, which appears to be first given by Saulov in the current explicit form. The assumptions of the underlying theory and a brief derivation of the main equation have been provided preliminarily for completeness and notational consistency. The resulting formulae for the Gibbs free energy of mixing and the chemical potentials are multivariate polynomials with physically meaningful coefficients and the mole fractions of the components as variables. With one additional assumption about the relative magnitudes of the solvent-solute and solute-solute interaction exchange energies, combining rules were obtained that express the mixed coefficients of the polynomial in terms of its pure coefficients. This was done by exploiting the mathematical structure of the asymmetric form of the solvent chemical potential equation. The combining rules allow one to calculate the thermodynamic properties of the solvent with multiple solutes from binary mixture data only (i.e., each solute with the solvent), and hence, are of practical importance. Furthermore, a connection was established between the osmotic virial coefficients derived in this work and the original osmotic virial coefficients of Hill found by employing a different procedure, illustrating the equivalency of what appears to be two different theories. A validation of the combining rules derived here has been provided in a separate paper where they were successfully used to predict the freezing points of ternary salt solutions of water.
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Affiliation(s)
- Hikmat Binyaminov
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Janet A W Elliott
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
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5
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Baclig A, Ganapathi D, Ng V, Penn E, Saathoff J, Chueh WC. Large Decrease in the Melting Point of Benzoquinones via High- n Eutectic Mixing Predicted by a Regular Solution Model. J Phys Chem B 2023. [PMID: 37384541 DOI: 10.1021/acs.jpcb.3c01125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
Decreasing the melting point (Tm) of a mixture is of interest in cryopreservatives, molten salts, and battery electrolytes. One general strategy to decrease Tm, exemplified by deep eutectic solvents, is to mix components with favorable (negative) enthalpic interactions. We demonstrate a complementary strategy to decrease Tm by mixing many components with neutral or slightly positive enthalpic interactions, using the number of components (n) to increase the entropy of mixing and decrease Tm. In theory, under certain conditions this approach could achieve an arbitrarily low Tm. Furthermore, if the components are small redox-active molecules, such as the benzoquinones studied here, this approach could lead to high energy density flow battery electrolytes. Finding the eutectic composition of a high-n mixture can be challenging due to the large compositional space yet is essential for ensuring the existence of a purely liquid phase. We reformulate and apply fundamental thermodynamic equations to describe high-n eutectic mixtures of small redox-active molecules (benzoquinones and hydroquinones). We illustrate a novel application of this theory by tuning the entropy of melting, rather than the enthalpy, in systems highly relevant to energy storage. We demonstrate with differential scanning calorimetry measurements that 1,4-benzoquinone derivatives exhibit eutectic mixing that decreases their Tm, despite slightly positive enthalpies of mixing (0-5 kJ/mol). By rigorously investigating all 21 binary mixtures of a set of seven 1,4-benzoquinone derivatives with alkyl substituents (Tm's between 44 and 120 °C), we find that the eutectic melting point of a mixture of all seven achieves a large decrease in Tm to -6 °C. We further determine that the regular solution model shows improvement over an ideal solution model in predicting the eutectic properties for this newly investigated type of mixture composed of many small redox-active organic molecules.
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Affiliation(s)
- Antonio Baclig
- Department of Materials Science & Engineering, Stanford University, Stanford, California 94305, United States
| | - Devi Ganapathi
- Department of Materials Science & Engineering, Stanford University, Stanford, California 94305, United States
| | - Victoria Ng
- Department of Materials Science & Engineering, Stanford University, Stanford, California 94305, United States
| | - Emily Penn
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Jonathan Saathoff
- ExxonMobil Technology and Engineering Company, Annandale, New Jersey 08801, United States
| | - William C Chueh
- Department of Materials Science & Engineering, Stanford University, Stanford, California 94305, United States
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6
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Shuttleworth R, Higgins AZ, Eroglu A, Benson JD. Comparison of dilute and nondilute osmotic equilibrium models for erythrocytes. Cryobiology 2022; 109:72-79. [PMID: 36130638 DOI: 10.1016/j.cryobiol.2022.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 08/10/2022] [Accepted: 09/06/2022] [Indexed: 01/16/2023]
Abstract
Successful cryopreservation requires the addition of cryoprotective agents (CPAs). The addition of permeating CPAs, such as glycerol, is associated with some risk to the cells and tissues. These risks are both related to the CPA themselves (CPA toxicity) and to the volume response of the cell (osmotic damage). To minimize the potential for damage during cryopreservation, mathematical models are often employed to understand the interactions between protocols and cell volume responses. In the literature, this volume response is usually captured using ideal and dilute approximations of chemical potential and osmolality, an approach that has been called into question for cells in high concentrations of CPAs. To address this, the relevance of non-ideal and non-dilute models has been explored in a number of cell types in the presence of permeating CPAs. However, it has not been explored in erythrocytes, which have a cytosolic hemoglobin content of more than 20% by volume and are cryopreserved in 40% glycerol. Because hemoglobin has been suggested to be a highly non-ideal solute, if the non-ideal and non-dilute transport model is relevant to any cells, it should be relevant to erythrocytes. Here we investigate the use, and accuracy, of both the dilute and non-dilute models in predicting cell volume changes during CPA equilibration in erythrocytes, and demonstrate that using published values for the non-ideal and non-dilute model, applied to erythrocytes, leads to model predictions inconsistent with experimental data, whereas dilute approximations align well with experimental data.
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Affiliation(s)
- R Shuttleworth
- Department of Biology, University of Saskatchewan, Saskatoon, SK, Canada.
| | - A Z Higgins
- Chemical, Biological & Environmental Engineering, Oregon State University, Corvallis, OR, USA.
| | - A Eroglu
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA.
| | - J D Benson
- Department of Biology, University of Saskatchewan, Saskatoon, SK, Canada.
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7
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Conclusions About Osmotically Inactive Volume and Osmotic Fragility from a Detailed Erythrocyte Model. J Theor Biol 2022; 539:110982. [DOI: 10.1016/j.jtbi.2021.110982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 12/04/2021] [Accepted: 12/07/2021] [Indexed: 11/20/2022]
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8
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Gabler Pizarro LA, McGann LE, Elliott JAW. Permeability and Osmotic Parameters of Human Umbilical Vein Endothelial Cells and H9C2 Cells under Non-ideal Thermodynamic Assumptions: A Novel Iterative Fitting Method. J Phys Chem B 2021; 125:12934-12946. [PMID: 34788536 DOI: 10.1021/acs.jpcb.1c06637] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cryopreservation is the use of very low subzero temperatures to preserve cells and tissues for later use. This is achieved by controlled cooling in the presence of cryoprotectants that moderate the amount of ice formed. Mathematical modeling of the cryopreservation process is a useful tool to investigate the different variables that affect the results of this process. The changing cell volume during cryopreservation can be modeled using cell membrane water and cryoprotectant permeabilities and the osmotically inactive fraction of the intracellular contents. These three cell-specific parameters have been found previously for different cell types under ideal and dilute assumptions, but biological solutions at subzero temperatures are far from ideal and dilute, especially when cryoprotectants are included. In this work, the osmotic virial equation is used to model the changing cell volume under non-ideal assumptions, and the intracellular environment is described using the grouped solute, which consists of all impermeant intracellular solutes grouped together, leading to two additional cell-specific parameters, the second and third osmotic virial coefficients of the grouped solute. Herein, we present a novel fitting method to efficiently determine these five cell-specific parameters by fitting kinetic cell volume data under non-ideal assumptions and report the results of applying this method to obtain the parameters for two cell types: human umbilical vein endothelial cells and H9C2 rat myoblasts.
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Affiliation(s)
- Laura A Gabler Pizarro
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton T6G 1H9, Alberta, Canada
| | - Locksley E McGann
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton T6G 2B7, Alberta, Canada
| | - Janet A W Elliott
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton T6G 1H9, Alberta, Canada.,Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton T6G 2B7, Alberta, Canada
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9
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Wu K, Shardt N, Laouar L, Elliott JAW, Jomha NM. Vitrification of particulated articular cartilage via calculated protocols. NPJ Regen Med 2021; 6:15. [PMID: 33741977 PMCID: PMC7979917 DOI: 10.1038/s41536-021-00123-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Accepted: 02/01/2021] [Indexed: 02/05/2023] Open
Abstract
Preserving viable articular cartilage is a promising approach to address the shortage of graft tissue and enable the clinical repair of articular cartilage defects in articulating joints, such as the knee, ankle, and hip. In this study, we developed two 2-step, dual-temperature, multicryoprotectant loading protocols to cryopreserve particulated articular cartilage (cubes ~1 mm3 in size) using a mathematical approach, and we experimentally measured chondrocyte viability, metabolic activity, cell migration, and matrix productivity after implementing the designed loading protocols, vitrification, and warming. We demonstrated that porcine and human articular cartilage cubes can be successfully vitrified and rewarmed, maintaining high cell viability and excellent cellular function. The vitrified particulated articular cartilage was stored for a period of 6 months with no significant deterioration in chondrocyte viability and functionality. Our approach enables high-quality long-term storage of viable articular cartilage that can alleviate the shortage of grafts for use in clinically repairing articular cartilage defects.
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Affiliation(s)
- Kezhou Wu
- Department of Surgery, University of Alberta, Edmonton, AB, Canada
- Department of Orthopedic Surgery, First Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Nadia Shardt
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada
| | - Leila Laouar
- Department of Surgery, University of Alberta, Edmonton, AB, Canada
| | - Janet A W Elliott
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada.
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada.
| | - Nadr M Jomha
- Department of Surgery, University of Alberta, Edmonton, AB, Canada.
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10
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Abstract
Cryobiology is a multiscale and interdisciplinary field. The scope and scale of interactions limit the gains that can be made by one theory or experiment alone. Because of this, modeling has played a critical role in both explaining cryobiological phenomena and predicting improved protocols. Modeling facilitates understanding of the biophysical and some of the biochemical mechanisms of damage during all phases of cryopreservation including CPA equilibration and cooling and warming. Moreover, as a tool for optimization of cryopreservation protocols, modeling has yielded many successes. Modern cryobiological modeling includes very detailed descriptions of the physical phenomena that occur during freezing, including ice growth kinetics and spatial gradients that define heat and mass transport models. Here we reduce the complexity and approach only a small but classic subset of these problems. Namely, here we describe the process of building and using a mathematical model of a cell in suspension where spatial homogeneity is assumed for all quantities. We define the models that describe the critical cell quantities used to describe optimal and suboptimal protocols and then give an overview of classical methods of how to determine optimal protocols using these models. We include practical considerations of modeling in cryobiology, including fitting transport models to cell volume data, performing optimization with cell volume constraints, and a look at expanding cost functions to cooling regimes.
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Affiliation(s)
- James D Benson
- Department of Biology, University of Saskatchewan, Saskatoon, SK, Canada.
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11
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Abstract
Gibbsian composite-system thermodynamics is the framework governing the equilibrium of composite systems, including systems that at equilibrium have more than one value of pressure because of the action of surface tension, semipermeable membranes, or fields, and thus cannot be treated as simple systems. J. W. Gibbs's paper that lays out composite-system thermodynamics, "On the Equilibrium of Heterogeneous Substances", communicated in two parts in 1876 and 1878, is widely regarded as one of the most important pieces of scientific literature of its century. Many scientists adopted and stressed the importance of Gibbsian thermodynamics. In 1960, H. B. Callen wrote a textbook that made Gibbsian composite-system thermodynamics more accessible to thermodynamicists. However, Callen's book left out Gibbs's work on curved fluid interfaces and did not treat the complicated nonideal systems of interest to today's thermodynamicists. In this Feature Article, I have attempted to convey in a comprehensive manner the framework of Gibbsian composite-system thermodynamics including in detail the treatment of systems with interface effects and with nonideal, multicomponent phases. This work lays out the relationships between important equilibrium equations including the following: the Gibbs-Duhem equation, the Gibbs adsorption equation, the Young-Laplace equation, the Young equation, the Cassie-Baxter equation, the Wenzel equation, the Kelvin equation, the Gibbs-Thompson equation, and the Ostwald-Freundlich equation, including nonideal and multicomponent forms. Equations of state that are often useful for Gibbsian composite-system thermodynamics are reviewed including adsorption isotherms and our own work on two semiempirical equations of state: the Elliott et al. form of the osmotic virial equation and the Shardt-Elliott-Connors-Wright equation for the temperature and composition dependence of surface tension. I summarize the work of our group developing Gibbisan composite-system thermodynamics including new equations for such things as the curvature-induced depression of the eutectic temperature or the removal of azeotropes by nanoscale fluid interface curvature. Gibbsian composite-system thermodynamics has broad applications in biotechnology, nanostructured materials, surface textures and coatings, microfluidics, nanoscience, atmospheric and environmental physics, among others.
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Affiliation(s)
- Janet A W Elliott
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
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12
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Measurement of grouped intracellular solute osmotic virial coefficients. Cryobiology 2020; 97:198-216. [DOI: 10.1016/j.cryobiol.2019.09.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 09/30/2019] [Accepted: 09/30/2019] [Indexed: 02/04/2023]
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13
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McClintic WT, Taylor GJ, Simpson ML, Collier CP. Macromolecular Crowding Affects Voltage-Dependent Alamethicin Pore Formation in Lipid Bilayer Membranes. J Phys Chem B 2020; 124:5095-5102. [DOI: 10.1021/acs.jpcb.0c01650] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- William T. McClintic
- The Bredesen Center for Interdisciplinary Research, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Graham J. Taylor
- The Bredesen Center for Interdisciplinary Research, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Michael L. Simpson
- The Bredesen Center for Interdisciplinary Research, University of Tennessee, Knoxville, Tennessee 37996, United States
- Center for Nanophase Material Science, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - C. Patrick Collier
- The Bredesen Center for Interdisciplinary Research, University of Tennessee, Knoxville, Tennessee 37996, United States
- Center for Nanophase Material Science, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
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14
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Zargarzadeh L, Elliott JAW. Comparison of the Osmotic Virial Equation with the Margules Activity Model for Solid–Liquid Equilibrium. J Phys Chem B 2019; 123:1099-1107. [DOI: 10.1021/acs.jpcb.8b09285] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Leila Zargarzadeh
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Janet A. W. Elliott
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
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15
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Arbelaez-Camargo D, Roig-Carreras M, García-Montoya E, Pérez-Lozano P, Miñarro-Carmona M, Ticó-Grau JR, Suñé-Negre JM. Osmolality predictive models of different polymers as tools in parenteral and ophthalmic formulation development. Int J Pharm 2018; 543:190-200. [PMID: 29604368 DOI: 10.1016/j.ijpharm.2018.03.052] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 03/23/2018] [Accepted: 03/27/2018] [Indexed: 12/20/2022]
Abstract
During the development of parenteral dosage forms, different physicochemical studies are required to ensure stable, effective and safe formulations. The osmolality of this kind of dosage forms should bear a close similarity to the body fluids to prevent local irritation, pain or even more significant side effects like endothelial damage. The osmotic studies performed in Polyethylene glycol 400 (PEG 400), Polyethylene glycol 4000 (PEG 4000), Poloxamer 407 (P407), Sodium Hyaluronate (SH), Chondroitin Sulphate Sodium (CS), Cremophor RH 40 (CRE40) and Polyvinyl alcohol (PVA) aqueous solutions, showed that the theoretical determination of the osmolality based on their molecular weight as the only determinant factor did not agree with the values obtained by the measurement of colligative properties such as the freezing point depression. The data obtained from this study and its analysis, provided predictive equations that can be used as tools in the primary development to estimate formulation's osmolality at different concentrations; and its evolution over a period at the hypothetical worst-case scenario of storage temperature.
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Affiliation(s)
- Diana Arbelaez-Camargo
- Pharmacy and Pharmaceutical Technology Department, Faculty of Pharmacy, University of Barcelona, Joan XXIII 27-32, CP 08028 Barcelona, Spain.
| | - Manel Roig-Carreras
- Pharmacy and Pharmaceutical Technology Department, Faculty of Pharmacy, University of Barcelona, Joan XXIII 27-32, CP 08028 Barcelona, Spain
| | - Encarna García-Montoya
- Pharmacy and Pharmaceutical Technology Department, Faculty of Pharmacy, University of Barcelona, Joan XXIII 27-32, CP 08028 Barcelona, Spain; Pharmacotherapy, Pharmacogenetics and Pharmaceutical Technology Research Group, IDIBELL-UB, Duran i Reynals Hospital, 3a level, Gran Via de l'Hospitalet 199, CP 08908 Hospitalet de Llobregat, Barcelona, Spain.
| | - Pilar Pérez-Lozano
- Pharmacy and Pharmaceutical Technology Department, Faculty of Pharmacy, University of Barcelona, Joan XXIII 27-32, CP 08028 Barcelona, Spain; Pharmacotherapy, Pharmacogenetics and Pharmaceutical Technology Research Group, IDIBELL-UB, Duran i Reynals Hospital, 3a level, Gran Via de l'Hospitalet 199, CP 08908 Hospitalet de Llobregat, Barcelona, Spain
| | - Montserrat Miñarro-Carmona
- Pharmacy and Pharmaceutical Technology Department, Faculty of Pharmacy, University of Barcelona, Joan XXIII 27-32, CP 08028 Barcelona, Spain; Pharmacotherapy, Pharmacogenetics and Pharmaceutical Technology Research Group, IDIBELL-UB, Duran i Reynals Hospital, 3a level, Gran Via de l'Hospitalet 199, CP 08908 Hospitalet de Llobregat, Barcelona, Spain
| | - Josep Ramon Ticó-Grau
- Pharmacy and Pharmaceutical Technology Department, Faculty of Pharmacy, University of Barcelona, Joan XXIII 27-32, CP 08028 Barcelona, Spain; Pharmacotherapy, Pharmacogenetics and Pharmaceutical Technology Research Group, IDIBELL-UB, Duran i Reynals Hospital, 3a level, Gran Via de l'Hospitalet 199, CP 08908 Hospitalet de Llobregat, Barcelona, Spain
| | - Josep Maria Suñé-Negre
- Pharmacy and Pharmaceutical Technology Department, Faculty of Pharmacy, University of Barcelona, Joan XXIII 27-32, CP 08028 Barcelona, Spain; Pharmacotherapy, Pharmacogenetics and Pharmaceutical Technology Research Group, IDIBELL-UB, Duran i Reynals Hospital, 3a level, Gran Via de l'Hospitalet 199, CP 08908 Hospitalet de Llobregat, Barcelona, Spain
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16
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Zielinski MW, McGann LE, Nychka JA, Elliott JAW. Nonideal Solute Chemical Potential Equation and the Validity of the Grouped Solute Approach for Intracellular Solution Thermodynamics. J Phys Chem B 2017; 121:10443-10456. [DOI: 10.1021/acs.jpcb.7b07992] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Michal W. Zielinski
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 1H9
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, Canada T6G 2B7
| | - Locksley E. McGann
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, Canada T6G 2B7
| | - John A. Nychka
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 1H9
| | - Janet A. W. Elliott
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 1H9
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, Canada T6G 2B7
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17
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Zielinski MW, McGann LE, Nychka JA, Elliott JA. Comment on “Determination of the quaternary phase diagram of the water–ethylene glycol–sucrose–NaCl system and a comparison between two theoretical methods for synthetic phase diagrams” Cryobiology 61 (2010) 52–57. Cryobiology 2015; 70:287-92. [DOI: 10.1016/j.cryobiol.2015.03.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2014] [Revised: 02/04/2015] [Accepted: 03/17/2015] [Indexed: 10/23/2022]
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Prickett RC, Marquez-Curtis LA, Elliott JA, McGann LE. Effect of supercooling and cell volume on intracellular ice formation. Cryobiology 2015; 70:156-63. [DOI: 10.1016/j.cryobiol.2015.02.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Revised: 02/04/2015] [Accepted: 02/12/2015] [Indexed: 10/24/2022]
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Ross-Rodriguez LU, Elliott JAW, McGann LE. Non-ideal solution thermodynamics of cytoplasm. Biopreserv Biobank 2015; 10:462-71. [PMID: 23840923 DOI: 10.1089/bio.2012.0027] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
Quantitative description of the non-ideal solution thermodynamics of the cytoplasm of a living mammalian cell is critically necessary in mathematical modeling of cryobiology and desiccation and other fields where the passive osmotic response of a cell plays a role. In the solution thermodynamics osmotic virial equation, the quadratic correction to the linear ideal, dilute solution theory is described by the second osmotic virial coefficient. Herein we report, for the first time, intracellular solution second osmotic virial coefficients for four cell types [TF-1 hematopoietic stem cells, human umbilical vein endothelial cells (HUVEC), porcine hepatocytes, and porcine chondrocytes] and further report second osmotic virial coefficients indistinguishable from zero (for the concentration range studied) for human hepatocytes and mouse oocytes.
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Abstract
Modeling plays a critical role in understanding the biophysical processes behind cryopreservation. It facilitates understanding of the biophysical and some of the biochemical mechanisms of damage during all phases of cryopreservation including CPA equilibration, cooling, and warming. Modeling also provides a tool for optimization of cryopreservation protocols and has yielded a number of successes in this regard. While modern cryobiological modeling includes very detailed descriptions of the physical phenomena that occur during freezing, including ice growth kinetics and spatial gradients that define heat and mass transport models, here we reduce the complexity and approach only a small but classic subset of these problems. Namely, here we describe the process of building and using a mathematical model of a cell in suspension where spatial homogeneity is assumed for all quantities. We define the models that describe the critical cell quantities used to describe optimal and suboptimal protocols and then give an overview of classical methods of how to determine optimal protocols using these models.
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Affiliation(s)
- James D Benson
- Department of Mathematical Sciences, Northern Illinois University, DeKalb, IL, 60115, USA,
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Eslami F, Elliott JAW. Role of Precipitating Solute Curvature on Microdrops and Nanodrops during Concentrating Processes: The Nonideal Ostwald–Freundlich Equation. J Phys Chem B 2014; 118:14675-86. [DOI: 10.1021/jp5063786] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fatemeh Eslami
- Department of Chemical and
Materials Engineering, University of Alberta, Edmonton AB, Canada T6G 2V4
| | - Janet A. W. Elliott
- Department of Chemical and
Materials Engineering, University of Alberta, Edmonton AB, Canada T6G 2V4
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Anderson DM, Benson JD, Kearsley AJ. Foundations of modeling in cryobiology-I: concentration, Gibbs energy, and chemical potential relationships. Cryobiology 2014; 69:349-60. [PMID: 25240602 DOI: 10.1016/j.cryobiol.2014.09.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 08/07/2014] [Accepted: 09/02/2014] [Indexed: 11/16/2022]
Abstract
Mathematical modeling plays an enormously important role in understanding the behavior of cells, tissues, and organs undergoing cryopreservation. Uses of these models range from explanation of phenomena, exploration of potential theories of damage or success, development of equipment, and refinement of optimal cryopreservation/cryoablation strategies. Over the last half century there has been a considerable amount of work in bio-heat and mass-transport, and these models and theories have been readily and repeatedly applied to cryobiology with much success. However, there are significant gaps between experimental and theoretical results that suggest missing links in models. One source for these potential gaps is that cryobiology is at the intersection of several very challenging aspects of transport theory: it couples multi-component, moving boundary, multiphase solutions that interact through a semipermeable elastic membrane with multicomponent solutions in a second time-varying domain, during a two-hundred Kelvin temperature change with multi-molar concentration gradients and multi-atmosphere pressure changes. In order to better identify potential sources of error, and to point to future directions in modeling and experimental research, we present a three part series to build from first principles a theory of coupled heat and mass transport in cryobiological systems accounting for all of these effects. The hope of this series is that by presenting and justifying all steps, conclusions may be made about the importance of key assumptions, perhaps pointing to areas of future research or model development, but importantly, lending weight to standard simplification arguments that are often made in heat and mass transport. In this first part, we review concentration variable relationships, their impact on choices for Gibbs energy models, and their impact on chemical potentials.
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Affiliation(s)
- Daniel M Anderson
- Applied and Computational Mathematics Division, National Institute of Standards and Technology, Gaithersburg, MD 20899-8910, United States; Department of Mathematical Sciences, George Mason University, Fairfax, VA 22030, United States.
| | - James D Benson
- Applied and Computational Mathematics Division, National Institute of Standards and Technology, Gaithersburg, MD 20899-8910, United States; Department of Mathematical Sciences, Northern Illinois University, DeKalb, IL 60115-2888, United States.
| | - Anthony J Kearsley
- Applied and Computational Mathematics Division, National Institute of Standards and Technology, Gaithersburg, MD 20899-8910, United States.
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Zielinski MW, McGann LE, Nychka JA, Elliott JAW. Comparison of non-ideal solution theories for multi-solute solutions in cryobiology and tabulation of required coefficients. Cryobiology 2014; 69:305-17. [PMID: 25158101 DOI: 10.1016/j.cryobiol.2014.08.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Revised: 07/19/2014] [Accepted: 08/13/2014] [Indexed: 11/28/2022]
Abstract
Thermodynamic solution theories allow the prediction of chemical potentials in solutions of known composition. In cryobiology, such models are a critical component of many mathematical models that are used to simulate the biophysical processes occurring in cells and tissues during cryopreservation. A number of solution theories, both thermodynamically ideal and non-ideal, have been proposed for use with cryobiological solutions. In this work, we have evaluated two non-ideal solution theories for predicting water chemical potential (i.e. osmolality) in multi-solute solutions relevant to cryobiology: the Elliott et al. form of the multi-solute osmotic virial equation, and the Kleinhans and Mazur freezing point summation model. These two solution theories require fitting to only single-solute data, although they can make predictions in multi-solute solutions. The predictions of these non-ideal solution theories were compared to predictions made using ideal dilute assumptions and to available literature multi-solute experimental osmometric data. A single, consistent set of literature single-solute solution data was used to fit for the required solute-specific coefficients for each of the non-ideal models. Our results indicate that the two non-ideal solution theories have similar overall performance, and both give more accurate predictions than ideal models. These results can be used to select between the non-ideal models for a specific multi-solute solution, and the updated coefficients provided in this work can be used to make the desired predictions.
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Affiliation(s)
- Michal W Zielinski
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 2V4, Canada; Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta T6G 2R8, Canada
| | - Locksley E McGann
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta T6G 2R8, Canada
| | - John A Nychka
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 2V4, Canada
| | - Janet A W Elliott
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 2V4, Canada; Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta T6G 2R8, Canada.
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24
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Eslami F, Elliott JAW. Stability Analysis of Microdrops during Concentrating Processes. J Phys Chem B 2014; 118:3630-41. [DOI: 10.1021/jp4072229] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fatemeh Eslami
- Department of Chemical and
Materials Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2V4
| | - Janet A. W. Elliott
- Department of Chemical and
Materials Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2V4
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Cheng J, Gier M, Ross-Rodriguez LU, Prasad V, Elliott JAW, Sputtek A. Osmotic Virial Coefficients of Hydroxyethyl Starch from Aqueous Hydroxyethyl Starch–Sodium Chloride Vapor Pressure Osmometry. J Phys Chem B 2013; 117:10231-40. [DOI: 10.1021/jp403377b] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jingjiang Cheng
- Department
of Chemical and Materials
Engineering, University of Alberta, Canada
| | | | - Lisa U. Ross-Rodriguez
- Department
of Chemical and Materials
Engineering, University of Alberta, Canada
- Department
of Laboratory Medicine
and Pathology, University of Alberta, Canada
| | - Vinay Prasad
- Department
of Chemical and Materials
Engineering, University of Alberta, Canada
| | - Janet A. W. Elliott
- Department
of Chemical and Materials
Engineering, University of Alberta, Canada
- Department
of Laboratory Medicine
and Pathology, University of Alberta, Canada
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Affiliation(s)
- Fatemeh Eslami
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton AB, Canada T6G 2V4
| | - Janet A. W. Elliott
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton AB, Canada T6G 2V4
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