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Yang D, Walker LM. Synergistic Effects of Multiple Excipients on Controlling Viscosity of Concentrated Protein Dispersions. J Pharm Sci 2022; 112:1379-1387. [PMID: 36539064 DOI: 10.1016/j.xphs.2022.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 12/13/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
Viscosity control is essential for the manufacturing and delivery of concentrated therapeutic proteins. Limited availability of the precious protein-based drugs hinders the characterization and screening of the formulation conditions with new types or different combinations of excipients. In this work, a droplet-based microfluidic device with incorporated multiple particle tracking microrheology (MPT) is developed to quantify the effects of two excipients, arginine hydrochloride (ArgHCl) and caffeine, on the viscosity of concentrated bovine gamma globulin (BGG) dispersions at two different values of pH. The effectiveness of both ArgHCl and caffeine show dependence on the BGG concentration and solution pH. The data set with high compositional resolution provides useful information to guide formulation with multiple viscosity-reducing excipients and quantification appropriate to start elucidating the connection to protein-protein interaction mechanisms. Overall, this work has demonstrated that the developed microfluidic approach has the potential to effectively assess the impact of multiple excipients on the viscosity and provide data for computational methods to predict viscosity for high concentration protein formulations.
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Affiliation(s)
- Deyu Yang
- Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, United States
| | - Lynn M Walker
- Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, United States.
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2
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Bergmann AM, Donau C, Späth F, Jahnke K, Göpfrich K, Boekhoven J. Evolution and Single‐Droplet Analysis of Fuel‐Driven Compartments by Droplet‐Based Microfluidics. Angew Chem Int Ed Engl 2022; 61:e202203928. [PMID: 35657164 PMCID: PMC9400878 DOI: 10.1002/anie.202203928] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Alexander M. Bergmann
- Department of Chemistry Technical University of Munich Lichtenbergstrasse 4 85748 Garching Germany
| | - Carsten Donau
- Department of Chemistry Technical University of Munich Lichtenbergstrasse 4 85748 Garching Germany
| | - Fabian Späth
- Department of Chemistry Technical University of Munich Lichtenbergstrasse 4 85748 Garching Germany
| | - Kevin Jahnke
- Biophysical Engineering Group Max Planck Institute for Medical Research Jahnstraße 29 69120 Heidelberg Germany
- Department of Physics and Astronomy Heidelberg University 69120 Heidelberg Germany
| | - Kerstin Göpfrich
- Biophysical Engineering Group Max Planck Institute for Medical Research Jahnstraße 29 69120 Heidelberg Germany
- Department of Physics and Astronomy Heidelberg University 69120 Heidelberg Germany
| | - Job Boekhoven
- Department of Chemistry Technical University of Munich Lichtenbergstrasse 4 85748 Garching Germany
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Bergmann AM, Donau C, Späth F, Jahnke K, Göpfrich K, Boekhoven J. Evolution and Single‐Droplet Analysis of Fuel‐Driven Compartments by Droplet‐Based Microfluidics. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202203928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - Carsten Donau
- Technische Universität München: Technische Universitat Munchen Chemistry GERMANY
| | - Fabian Späth
- TU München: Technische Universitat Munchen Chemistry GERMANY
| | - Kevin Jahnke
- Max-Planck-Institute for Medical Research: Max-Planck-Institut fur medizinische Forschung Medical Research GERMANY
| | - Kerstin Göpfrich
- Max-Planck-Institute for Medical Research: Max-Planck-Institut fur medizinische Forschung Medical Research GERMANY
| | - Job Boekhoven
- Technical University of Munchen Chemistry Lichtenbergstrasse 485748Germany 85748 Garching GERMANY
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Bacchin P, Leng J, Salmon JB. Microfluidic Evaporation, Pervaporation, and Osmosis: From Passive Pumping to Solute Concentration. Chem Rev 2021; 122:6938-6985. [PMID: 34882390 DOI: 10.1021/acs.chemrev.1c00459] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Evaporation, pervaporation, and forward osmosis are processes leading to a mass transfer of solvent across an interface: gas/liquid for evaporation and solid/liquid (membrane) for pervaporation and osmosis. This Review provides comprehensive insight into the use of these processes at the microfluidic scales for applications ranging from passive pumping to the screening of phase diagrams and micromaterials engineering. Indeed, for a fixed interface relative to the microfluidic chip, these processes passively induce flows driven only by gradients of chemical potential. As a consequence, these passive-transport phenomena lead to an accumulation of solutes that cannot cross the interface and thus concentrate solutions in the microfluidic chip up to high concentration regimes, possibly up to solidification. The purpose of this Review is to provide a unified description of these processes and associated microfluidic applications to highlight the differences and similarities between these three passive-transport phenomena.
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Affiliation(s)
- Patrice Bacchin
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INPT, UPS, 31000 Toulouse, France
| | - Jacques Leng
- CNRS, Solvay, LOF, UMR 5258, Université de Bordeaux, 33600 Pessac, France
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Droplet-Based Microfluidic Tool to Quantify Viscosity of Concentrating Protein Solutions. Pharm Res 2021; 38:1765-1775. [PMID: 34664208 DOI: 10.1007/s11095-021-03106-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 09/03/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE Measurement of the viscosity of concentrated protein solutions is vital for the manufacture and delivery of protein therapeutics. Conventional methods for viscosity measurements require large solution volumes, creating a severe limitation during the early stage of protein development. The goal of this work is to develop a robust technique that requires minimal sample. METHODS In this work, a droplet-based microfluidic device is developed to quantify the viscosity of protein solutions while concentrating in micrometer-scale droplets. The technique requires only microliters of sample. The corresponding viscosity is characterized by multiple particle tracking microrheology (MPT). RESULTS We show that the viscosities quantified in the microfluidic device are consistent with macroscopic results measured by a conventional rheometer for poly(ethylene) glycol (PEG) solutions. The technique was further applied to quantify viscosities of well-studied lysozyme and bovine serum albumin (BSA) solutions. Comparison to both macroscopic measurements and models (Krieger-Dougherty model) demonstrate the validity of the approach. CONCLUSION The droplet-based microfluidic device provides accurate quantitative values of viscosity over a range of concentrations for protein solutions with small sample volumes (~ μL) and high compositional resolution. This device will be extended to study the effect of different excipients and other additives on the viscosity of protein solutions.
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Roy P, Liu S, Dutcher CS. Droplet Interfacial Tensions and Phase Transitions Measured in Microfluidic Channels. Annu Rev Phys Chem 2021; 72:73-97. [PMID: 33607917 DOI: 10.1146/annurev-physchem-090419-105522] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Measurements of droplet phase and interfacial tension (IFT) are important in the fields of atmospheric aerosols and emulsion science. Bulk macroscale property measurements with similar constituents cannot capture the effect of microscopic length scales and highly curved surfaces on the transport characteristics and heterogeneous chemistry typical in these applications. Instead, microscale droplet measurements ensure properties are measured at the relevant length scale. With recent advances in microfluidics, customized multiphase fluid flows can be created in channels for the manipulation and observation of microscale droplets in an enclosed setting without the need for large and expensive control systems. In this review, we discuss the applications of different physical principles at the microscale and corresponding microfluidic approaches for the measurement of droplet phase state, viscosity, and IFT.
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Affiliation(s)
- Priyatanu Roy
- Department of Mechanical Engineering, University of Minnesota, Twin Cities, Minneapolis, Minnesota 55455, USA;
| | - Shihao Liu
- Department of Mechanical Engineering, University of Minnesota, Twin Cities, Minneapolis, Minnesota 55455, USA;
| | - Cari S Dutcher
- Department of Mechanical Engineering, University of Minnesota, Twin Cities, Minneapolis, Minnesota 55455, USA; .,Department of Chemical Engineering and Materials Science, University of Minnesota, Twin Cities, Minneapolis, Minnesota 55455, USA
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Linsenmeier M, Kopp MRG, Stavrakis S, de Mello A, Arosio P. Analysis of biomolecular condensates and protein phase separation with microfluidic technology. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2020; 1868:118823. [PMID: 32800925 DOI: 10.1016/j.bbamcr.2020.118823] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 08/04/2020] [Accepted: 08/05/2020] [Indexed: 12/17/2022]
Abstract
An increasing body of evidence shows that membraneless organelles are key components in cellular organization. These observations open a variety of outstanding questions about the physico-chemical rules underlying their assembly, disassembly and functions. Some molecular determinants of biomolecular condensates are challenging to probe and understand in complex in vivo systems. Minimalistic in vitro reconstitution approaches can fill this gap, mimicking key biological features, while maintaining sufficient simplicity to enable the analysis of fundamental aspects of biomolecular condensates. In this context, microfluidic technologies are highly attractive tools for the analysis of biomolecular phase transitions. In addition to enabling high-throughput measurements on small sample volumes, microfluidic tools provide for exquisite control of self-assembly in both time and space, leading to accurate quantitative analysis of biomolecular phase transitions. Here, with a specific focus on droplet-based microfluidics, we describe the advantages of microfluidic technology for the analysis of several aspects of phase separation. These include phase diagrams, dynamics of assembly and disassembly, rheological and surface properties, exchange of materials with the surrounding environment and the coupling between compartmentalization and biochemical reactions. We illustrate these concepts with selected examples, ranging from simple solutions of individual proteins to more complex mixtures of proteins and RNA, which represent synthetic models of biological membraneless organelles. Finally, we discuss how this technology may impact the bottom-up fabrication of synthetic artificial cells and for the development of synthetic protein materials in biotechnology.
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Affiliation(s)
- Miriam Linsenmeier
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich 8093, Switzerland
| | - Marie R G Kopp
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich 8093, Switzerland
| | - Stavros Stavrakis
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich 8093, Switzerland
| | - Andrew de Mello
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich 8093, Switzerland
| | - Paolo Arosio
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich 8093, Switzerland.
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Kopp MRG, Linsenmeier M, Hettich B, Prantl S, Stavrakis S, Leroux JC, Arosio P. Microfluidic Shrinking Droplet Concentrator for Analyte Detection and Phase Separation of Protein Solutions. Anal Chem 2020; 92:5803-5812. [DOI: 10.1021/acs.analchem.9b05329] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Marie R. G. Kopp
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Zurich 8093, Switzerland
| | - Miriam Linsenmeier
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Zurich 8093, Switzerland
| | - Britta Hettich
- Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, ETH Zurich, Zurich 8093, Switzerland
| | - Sebastian Prantl
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Zurich 8093, Switzerland
| | - Stavros Stavrakis
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Zurich 8093, Switzerland
| | - Jean-Christophe Leroux
- Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, ETH Zurich, Zurich 8093, Switzerland
| | - Paolo Arosio
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Zurich 8093, Switzerland
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9
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Accounting for optical errors in microtensiometry. J Colloid Interface Sci 2018; 526:392-399. [DOI: 10.1016/j.jcis.2018.04.053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 04/10/2018] [Accepted: 04/12/2018] [Indexed: 11/19/2022]
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Chao Y, Mak SY, Rahman S, Zhu S, Shum HC. Generation of High-Order All-Aqueous Emulsion Drops by Osmosis-Driven Phase Separation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1802107. [PMID: 30118584 DOI: 10.1002/smll.201802107] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 07/28/2018] [Indexed: 05/14/2023]
Abstract
Droplets containing ternary mixtures can spontaneously phase-separate into high-order structures upon a change in composition, which provides an alternative strategy to form multiphase droplets. However, existing strategies always involve nonaqueous solvents that limit the potential applications of the resulting multiple droplets, such as encapsulation of biomolecules. Here, a robust approach to achieve high-order emulsion drops with an all-aqueous nature from two aqueous phases by osmosis-induced phase separation on a microfluidic platform is presented. This technique is enabled by the existence of an interface of the two aqueous phases and phase separation caused by an osmolality difference between the two phases. The complexity of emulsion drops induced by phase separation could be controlled by varying the initial concentration of solutes and is systematically illustrated in a state diagram. In particular, this technique is utilized to successfully achieve high-order all-aqueous droplets in a different aqueous two-phase system. The proposed method is simple since it only requires two initial aqueous solutions for generating multilayered, organic-solvent-free all-aqueous emulsion drops, and thus these multiphase emulsion drops can be further tailored to serve as highly biocompatible material templates.
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Affiliation(s)
- Youchuang Chao
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China
- HKU-Shenzhen Institute of Research and Innovation (HKU-SIRI), Shenzhen, Guangdong, 518000, China
| | - Sze Yi Mak
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China
- HKU-Shenzhen Institute of Research and Innovation (HKU-SIRI), Shenzhen, Guangdong, 518000, China
| | - Shakurur Rahman
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Shipei Zhu
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Ho Cheung Shum
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China
- HKU-Shenzhen Institute of Research and Innovation (HKU-SIRI), Shenzhen, Guangdong, 518000, China
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