1
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Kenney DH, Paffenroth RC, Timko MT, Teixeira AR. Dimensionally reduced machine learning model for predicting single component octanol-water partition coefficients. J Cheminform 2023; 15:9. [PMID: 36658606 PMCID: PMC9854055 DOI: 10.1186/s13321-022-00660-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 11/25/2022] [Indexed: 01/20/2023] Open
Abstract
MF-LOGP, a new method for determining a single component octanol-water partition coefficients ([Formula: see text]) is presented which uses molecular formula as the only input. Octanol-water partition coefficients are useful in many applications, ranging from environmental fate and drug delivery. Currently, partition coefficients are either experimentally measured or predicted as a function of structural fragments, topological descriptors, or thermodynamic properties known or calculated from precise molecular structures. The MF-LOGP method presented here differs from classical methods as it does not require any structural information and uses molecular formula as the sole model input. MF-LOGP is therefore useful for situations in which the structure is unknown or where the use of a low dimensional, easily automatable, and computationally inexpensive calculations is required. MF-LOGP is a random forest algorithm that is trained and tested on 15,377 data points, using 10 features derived from the molecular formula to make [Formula: see text] predictions. Using an independent validation set of 2713 data points, MF-LOGP was found to have an average [Formula: see text] = 0.77 ± 0.007, [Formula: see text] = 0.52 ± 0.003, and [Formula: see text] = 0.83 ± 0.003. This performance fell within the spectrum of performances reported in the published literature for conventional higher dimensional models ([Formula: see text] = 0.42-1.54, [Formula: see text] = 0.09-1.07, and [Formula: see text] = 0.32-0.95). Compared with existing models, MF-LOGP requires a maximum of ten features and no structural information, thereby providing a practical and yet predictive tool. The development of MF-LOGP provides the groundwork for development of more physical prediction models leveraging big data analytical methods or complex multicomponent mixtures.
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Affiliation(s)
- David H. Kenney
- grid.268323.e0000 0001 1957 0327Department of Chemical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609 USA
| | - Randy C. Paffenroth
- grid.268323.e0000 0001 1957 0327Department of Mathematical Sciences, Worcester Polytechnic Institute, Worcester, MA 01609 USA
| | - Michael T. Timko
- grid.268323.e0000 0001 1957 0327Department of Chemical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609 USA
| | - Andrew R. Teixeira
- grid.268323.e0000 0001 1957 0327Department of Chemical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609 USA
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2
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Volk AA, Campbell ZS, Ibrahim MYS, Bennett JA, Abolhasani M. Flow Chemistry: A Sustainable Voyage Through the Chemical Universe en Route to Smart Manufacturing. Annu Rev Chem Biomol Eng 2022; 13:45-72. [PMID: 35259931 DOI: 10.1146/annurev-chembioeng-092120-024449] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Microfluidic devices and systems have entered many areas of chemical engineering, and the rate of their adoption is only increasing. As we approach and adapt to the critical global challenges we face in the near future, it is important to consider the capabilities of flow chemistry and its applications in next-generation technologies for sustainability, energy production, and tailor-made specialty chemicals. We present the introduction of microfluidics into the fundamental unit operations of chemical engineering. We discuss the traits and advantages of microfluidic approaches to different reactive systems, both well-established and emerging, with a focus on the integration of modular microfluidic devices into high-efficiency experimental platforms for accelerated process optimization and intensified continuous manufacturing. Finally, we discuss the current state and new horizons in self-driven experimentation in flow chemistry for both intelligent exploration through the chemical universe and distributed manufacturing. Expected final online publication date for the Annual Review of Chemical and Biomolecular Engineering, Volume 13 is October 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- Amanda A Volk
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina, USA; , , , ,
| | - Zachary S Campbell
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina, USA; , , , ,
| | - Malek Y S Ibrahim
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina, USA; , , , ,
| | - Jeffrey A Bennett
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina, USA; , , , ,
| | - Milad Abolhasani
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina, USA; , , , ,
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3
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Klement T, Hanf S, Wolff F, Kockmann N, Schunk SA, Röder T. Oscillating droplet reactor – towards kinetic investigations in heterogeneous catalysis on a droplet scale. REACT CHEM ENG 2021. [DOI: 10.1039/d0re00466a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work we present a new concept of a millistructured capillary reactor setup for contactless kinetic measurements via in-line Raman spectroscopy for three phase reactions in single slugs.
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Affiliation(s)
- Torsten Klement
- Mannheim University of Applied Sciences
- Institute of Chemical, Process Engineering
- 68163 Mannheim
- Germany
| | | | - Fabian Wolff
- Mannheim University of Applied Sciences
- Institute of Chemical, Process Engineering
- 68163 Mannheim
- Germany
| | - Norbert Kockmann
- Technische Universität Dortmund
- Fakultät für Bio- und Chemieingenieurwesen, Apparatedesign
- 44227 Dortmund
- Germany
| | | | - Thorsten Röder
- Mannheim University of Applied Sciences
- Institute of Chemical, Process Engineering
- 68163 Mannheim
- Germany
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4
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Raghuvanshi K, Zhu C, Ramezani M, Menegatti S, Santiso EE, Mason D, Rodgers J, Janka ME, Abolhasani M. Highly Efficient 1-Octene Hydroformylation at Low Syngas Pressure: From Single-Droplet Screening to Continuous Flow Synthesis. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01515] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Keshav Raghuvanshi
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, North Carolina 27695, United States
| | - Cheng Zhu
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, North Carolina 27695, United States
| | - Mahdi Ramezani
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, North Carolina 27695, United States
| | - Stefano Menegatti
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, North Carolina 27695, United States
| | - Erik E. Santiso
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, North Carolina 27695, United States
| | - Dawn Mason
- Eastman Chemical Company, Technology, 200 S. Wilcox Dr., Kingsport, Tennessee 37660, United States
| | - Jody Rodgers
- Eastman Chemical Company, Technology, 200 S. Wilcox Dr., Kingsport, Tennessee 37660, United States
| | - Mesfin E. Janka
- Eastman Chemical Company, Technology, 200 S. Wilcox Dr., Kingsport, Tennessee 37660, United States
| | - Milad Abolhasani
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, North Carolina 27695, United States
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5
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Sui J, Yan J, Liu D, Wang K, Luo G. Continuous Synthesis of Nanocrystals via Flow Chemistry Technology. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1902828. [PMID: 31755221 DOI: 10.1002/smll.201902828] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 10/11/2019] [Indexed: 05/28/2023]
Abstract
Modern nanotechnologies bring humanity to a new age, and advanced methods for preparing functional nanocrystals are cornerstones. A considerable variety of nanomaterials has been created over the past decades, but few were prepared on the macro scale, even fewer making it to the stage of industrial production. The gap between academic research and engineering production is expected to be filled by flow chemistry technology, which relies on microreactors. Microreaction devices and technologies for synthesizing different kinds of nanocrystals are discussed from an engineering point of view. The advantages of microreactors, the important features of flow chemistry systems, and methods to apply them in the syntheses of salt, oxide, metal, alloy, and quantum dot nanomaterials are summarized. To further exhibit the scaling-up of nanocrystal synthesis, recent reports on using microreactors with gram per hour and larger production rates are highlighted. Finally, an industrial example for preparing 10 tons of CaCO3 nanoparticles per day is introduced, which shows the great potential for flow chemistry processes to transfer lab research to industry.
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Affiliation(s)
- Jinsong Sui
- The State Key Lab of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Junyu Yan
- The State Key Lab of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Di Liu
- The State Key Lab of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Kai Wang
- The State Key Lab of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Guangsheng Luo
- The State Key Lab of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
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6
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Bennett JA, Campbell ZS, Abolhasani M. Role of continuous flow processes in green manufacturing of pharmaceuticals and specialty chemicals. Curr Opin Chem Eng 2019. [DOI: 10.1016/j.coche.2019.07.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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Klement T, Kockmann N, Röder T. Reactor Concept for Contactless Kinetic Measurement in Oscillating Droplets via Raman Spectroscopy. CHEM-ING-TECH 2019. [DOI: 10.1002/cite.201800199] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Torsten Klement
- Mannheim University of Applied SciencesInstitute of Chemical Process Engineering Paul-Wittsack-Straße 10 68163 Mannheim Germany
- TU Dortmund UniversityFaculty of Biochemical and Chemical Engineering, Laboratory of Equipment Design Emil-Figge-Straße 70 44227 Dortmund Germany
| | - Norbert Kockmann
- TU Dortmund UniversityFaculty of Biochemical and Chemical Engineering, Laboratory of Equipment Design Emil-Figge-Straße 70 44227 Dortmund Germany
| | - Thorsten Röder
- Mannheim University of Applied SciencesInstitute of Chemical Process Engineering Paul-Wittsack-Straße 10 68163 Mannheim Germany
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8
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Lu S, Wang K. Kinetic study of TBD catalyzed δ-valerolactone polymerization using a gas-driven droplet flow reactor. REACT CHEM ENG 2019. [DOI: 10.1039/c9re00046a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction kinetics of 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) catalyzed δ-valerolactone polymerization was determined using a gas-driven droplet reactor.
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Affiliation(s)
- Shiyao Lu
- The State Key Lab of Chemical Engineering
- Department of Chemical Engineering
- Tsinghua University
- Beijing 100084
- China
| | - Kai Wang
- The State Key Lab of Chemical Engineering
- Department of Chemical Engineering
- Tsinghua University
- Beijing 100084
- China
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9
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Tudesco MT, Moschetta EG, Voight EA. Scale-Up of a Continuous Extraction Process for Driving an Equilibrium-Limited Reaction to Completion. Org Process Res Dev 2018. [DOI: 10.1021/acs.oprd.8b00260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michael T. Tudesco
- Process Research and Development, AbbVie, Inc., 1401 Sheridan Road, North Chicago, Illinois 60064-1802, United States
| | - Eric G. Moschetta
- Process Research and Development, AbbVie, Inc., 1401 Sheridan Road, North Chicago, Illinois 60064-1802, United States
| | - Eric A. Voight
- Discovery Chemistry and Technology, AbbVie, Inc., 1 North Waukegan Road, North Chicago, Illinois 60064-1802, United States
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10
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Zhu C, Raghuvanshi K, Coley CW, Mason D, Rodgers J, Janka ME, Abolhasani M. Flow chemistry-enabled studies of rhodium-catalyzed hydroformylation reactions. Chem Commun (Camb) 2018; 54:8567-8570. [PMID: 29989636 DOI: 10.1039/c8cc04650f] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present an automated microscale flow chemistry platform for rapid performance evaluation of continuous and discrete reaction parameters in homogeneous hydroformylation reactions. We demonstrate the versatility of the developed microfluidic platform through a systematic study of the effects of a library of phosphine-based ligands on catalytic activity and regioselectivity.
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Affiliation(s)
- Cheng Zhu
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, NC 27695, USA.
| | - Keshav Raghuvanshi
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, NC 27695, USA.
| | - Connor W Coley
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Dawn Mason
- Eastman Chemical Company, 200 S. Wilcox Dr., Kingsport, TN 37660, USA
| | - Jody Rodgers
- Eastman Chemical Company, 200 S. Wilcox Dr., Kingsport, TN 37660, USA
| | - Mesfin E Janka
- Eastman Chemical Company, 200 S. Wilcox Dr., Kingsport, TN 37660, USA
| | - Milad Abolhasani
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, NC 27695, USA.
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11
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Zou D, Zhu X, Zhang F, Du Y, Ma J, Jiang R. An Efficient Strategy Based on Liquid-Liquid Extraction with Three-Phase Solvent System and High Speed Counter-Current Chromatography for Rapid Enrichment and Separation of Epimers of Minor Bufadienolide from Toad Meat. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:1008-1014. [PMID: 29300475 DOI: 10.1021/acs.jafc.7b05310] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This study presents an efficient strategy based on liquid-liquid extraction with three-phase solvent system and high speed counter-current chromatography for rapid enrichment and separation of epimers of minor bufadienolide from toad meat. The reflux extraction conditions were optimized by response surface methodology first, and a novel three-phase solvent system composed of n-hexane/methyl acetate/acetonitrile/water (3:6:5:5, v/v) was developed for liquid-liquid extraction of the crude extract. This integrative extraction process could enrich minor bufadienolide from complex matrix efficiently and minimize the loss of minor targets induced by repeated extraction with different kinds of organic solvents occurring in the classical liquid two-phase extraction. As a result, four epimers of minor bufadienolide were greatly enriched in the middle phase and total content of these epimers of minor bufadienolide was increased from 3.25% to 46.23%. Then, the enriched four epimers were separated by HSCCC with a two-phase solvent system composed of chloroform/methanol/water (4:2:2, v/v) successfully. Furthermore, we tested Na+,K+-ATPase (NKA) inhibitory effect of the four epimers. 3β-Isomers of bufadienolide showed stronger (>8-fold) inhibitory activity than 3α-isomers. The characterization of minor bufadienolide in toad meat and their significant difference of inhibitory effect on NKA would promote the further quantitative analysis and safety evaluation of toad meat as a food source.
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Affiliation(s)
- Denglang Zou
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University , Guangzhou 510632, P. R. China
| | - Xuelin Zhu
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University , Guangzhou 510632, P. R. China
| | - Fan Zhang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University , Guangzhou 510632, P. R. China
| | - Yurong Du
- Key Laboratory of Medicinal Plant and Animal Resources of Tibet Plateau, School of Life and Geography Science, Qinghai Normal University , Xining 810000, P. R. China
| | - Jianbin Ma
- Key Laboratory of Medicinal Plant and Animal Resources of Tibet Plateau, School of Life and Geography Science, Qinghai Normal University , Xining 810000, P. R. China
| | - Renwang Jiang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University , Guangzhou 510632, P. R. China
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12
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Alizadehgiashi M, Khabibullin A, Li Y, Prince E, Abolhasani M, Kumacheva E. Shear-Induced Alignment of Anisotropic Nanoparticles in a Single-Droplet Oscillatory Microfluidic Platform. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:322-330. [PMID: 29202244 DOI: 10.1021/acs.langmuir.7b03648] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Flow-induced alignment of shape-anisotropic colloidal particles is of great importance in fundamental research and in the fabrication of structurally anisotropic materials; however, rheo-optical studies of shear-induced particle orientation are time- and labor-intensive and require complicated experimental setups. We report a single-droplet oscillatory microfluidic strategy integrated with in-line polarized light imaging as a strategy for studies of shear-induced alignment of rod-shape nanoparticles. Using an oscillating droplet of an aqueous isotropic suspension of cellulose nanocrystals (CNCs), we explore the effect of the shear rate and suspension viscosity on the flow-induced CNC alignment and subsequent relaxation to the isotropic state. The proposed microfluidic strategy enables high-throughput studies of shear-induced orientations in structured liquid under precisely controlled experimental conditions. The results of such studies can be used in the development of structure-anisotropic materials.
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Affiliation(s)
- Moien Alizadehgiashi
- Department of Chemistry, University of Toronto , 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada
| | - Amir Khabibullin
- Department of Chemistry, University of Toronto , 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada
| | - Yunfeng Li
- Department of Chemistry, University of Toronto , 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada
| | - Elisabeth Prince
- Department of Chemistry, University of Toronto , 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada
| | - Milad Abolhasani
- Department of Chemical and Biomolecular Engineering, North Carolina State University , 911 Partners Way, Raleigh, North Carolina 27695-7905, United States
| | - Eugenia Kumacheva
- Department of Chemistry, University of Toronto , 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto , 200 College Street, Toronto, Ontario M5S 3E5, Canada
- Institute of Biomaterials and Biomedical Engineering, University of Toronto , 4 Taddle Creek Road, Toronto, Ontario M5S 3G9, Canada
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13
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Tshepelevitsh S, Hernits K, Jenčo J, Hawkins JM, Muteki K, Solich P, Leito I. Systematic Optimization of Liquid-Liquid Extraction for Isolation of Unidentified Components. ACS OMEGA 2017; 2:7772-7776. [PMID: 31457334 PMCID: PMC6644944 DOI: 10.1021/acsomega.7b01445] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 10/31/2017] [Indexed: 06/10/2023]
Abstract
We present a systematic approach for predicting the best solvents for selective extraction of components with unknown structure from complex mixtures (e.g., natural products)-a tool promising dramatic simplification of extraction process optimization. Its key advantage is that identification of the component(s) is unnecessary-prediction is based on a small set of experimental distribution coefficients (obtained using a combination of shake-flask extraction and chromatographic analysis) rather than structure-based descriptors. The methodology is suitable for the very common situations in practice where the desired compound needs to be separated from unknown impurities (i.e., selectively extracted from the mixture), as well as for large-scale and high-throughput work. The proof-of-concept methodology was developed and evaluated using an extensive set of experimental distribution data of lignin-related compounds obtained in this work.
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Affiliation(s)
- Sofja Tshepelevitsh
- Institute
of Chemistry, University of Tartu, 14a Ravila Street, Tartu 50411, Estonia
| | - Kertu Hernits
- Institute
of Chemistry, University of Tartu, 14a Ravila Street, Tartu 50411, Estonia
| | - Jaroslav Jenčo
- Faculty
of Pharmacy, Department of Analytical Chemistry, Charles University, Akademika Heyrovského 1203, Hradec
Králové 50005, Czech Republic
| | - Joel M. Hawkins
- Pfizer
Worldwide R&D, Eastern
Point Road, Groton, Connecticut 06340, United States
| | - Koji Muteki
- Pfizer
Worldwide R&D, Eastern
Point Road, Groton, Connecticut 06340, United States
| | - Petr Solich
- Faculty
of Pharmacy, Department of Analytical Chemistry, Charles University, Akademika Heyrovského 1203, Hradec
Králové 50005, Czech Republic
| | - Ivo Leito
- Institute
of Chemistry, University of Tartu, 14a Ravila Street, Tartu 50411, Estonia
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14
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Zhou C, Yin J, Wu C, Du L, Wang Y. Efficient target capture and transport by fuel-free micromotors in a multichannel microchip. SOFT MATTER 2017; 13:8064-8069. [PMID: 29099529 DOI: 10.1039/c7sm01905j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Efficient capture and transport of biological targets by functionalized micromotors in microfluidic chips have emerged as to be promising for bioanalysis and detection of targets. However, the crucial step-target capture-is still inefficient due to the low utilization of active spots on the functionalized motor surfaces. Herein, we designed a multichannel microchip for integrating confined space with the oscillatory movement of micromotors to increase the capture efficiency. Acoustically driven, magnetically guided Au/Ni/Au micromotors were employed as the target carriers, while E. coli bacteria were chosen as the targets. Under optimized conditions, a capture efficiency of 96% and an average loading number of 3-4 (targets per single motor) could be achieved. The possibility of simple separation of targets from micromotors has also been demonstrated. This microfluidic system could facilitate the integration of multiple steps for bioanalysis and detection of targets.
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Affiliation(s)
- Caijin Zhou
- The State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Membrane Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
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15
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Thien J, Peters C, Brands T, Koß HJ, Bardow A. Efficient Determination of Liquid–Liquid Equilibria Using Microfluidics and Raman Microspectroscopy. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b03230] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Julia Thien
- Chair of Technical Thermodynamics, RWTH Aachen University, Schinkelstraße 8, 52062 Aachen, Germany
| | - Christine Peters
- Chair of Technical Thermodynamics, RWTH Aachen University, Schinkelstraße 8, 52062 Aachen, Germany
| | - Thorsten Brands
- Chair of Technical Thermodynamics, RWTH Aachen University, Schinkelstraße 8, 52062 Aachen, Germany
| | - Hans-Jürgen Koß
- Chair of Technical Thermodynamics, RWTH Aachen University, Schinkelstraße 8, 52062 Aachen, Germany
| | - André Bardow
- Chair of Technical Thermodynamics, RWTH Aachen University, Schinkelstraße 8, 52062 Aachen, Germany
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16
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17
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Karl D, Börner P, Misuk V, Löwe H. Opening of New Synthetic Routes Using Segmented Microflow in Multistep Syntheses. Chem Eng Technol 2017. [DOI: 10.1002/ceat.201600367] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Dominik Karl
- Fraunhofer ICT-IMM; CAFE - Center for Applied Fluidics and Engineering; Carl-Zeiss-Strasse 18-20 55129 Mainz Germany
- Johannes Gutenberg University Mainz; Institute for Organic Chemistry; Duesbergweg 10-14 55128 Mainz Germany
| | - Pia Börner
- Johannes Gutenberg University Mainz; Institute for Organic Chemistry; Duesbergweg 10-14 55128 Mainz Germany
| | - Viktor Misuk
- Johannes Gutenberg University Mainz; Institute for Organic Chemistry; Duesbergweg 10-14 55128 Mainz Germany
| | - Holger Löwe
- Fraunhofer ICT-IMM; CAFE - Center for Applied Fluidics and Engineering; Carl-Zeiss-Strasse 18-20 55129 Mainz Germany
- Johannes Gutenberg University Mainz; Institute for Organic Chemistry; Duesbergweg 10-14 55128 Mainz Germany
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18
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Hwang YJ, Coley CW, Abolhasani M, Marzinzik AL, Koch G, Spanka C, Lehmann H, Jensen KF. A segmented flow platform for on-demand medicinal chemistry and compound synthesis in oscillating droplets. Chem Commun (Camb) 2017; 53:6649-6652. [DOI: 10.1039/c7cc03584e] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An automated flow chemistry platform performs single/multi-phase and single/multi-step chemistries in 14 μL droplets with online analysis and product collection.
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Affiliation(s)
- Ye-Jin Hwang
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
- Department of Chemical Engineering
| | - Connor W. Coley
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
| | - Milad Abolhasani
- Department of Chemical and Biomolecular Engineering
- North Carolina State University
- Raleigh
- USA
| | | | - Guido Koch
- Novartis Institutes for BioMedical Research
- CH-4056 Basel
- Switzerland
| | - Carsten Spanka
- Novartis Institutes for BioMedical Research
- CH-4056 Basel
- Switzerland
| | | | - Klavs F. Jensen
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
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19
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Kaminski TS, Garstecki P. Controlled droplet microfluidic systems for multistep chemical and biological assays. Chem Soc Rev 2017; 46:6210-6226. [DOI: 10.1039/c5cs00717h] [Citation(s) in RCA: 150] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Droplet microfluidics is a relatively new and rapidly evolving field of science focused on studying the hydrodynamics and properties of biphasic flows at the microscale, and on the development of systems for practical applications in chemistry, biology and materials science.
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Affiliation(s)
- T. S. Kaminski
- Institute of Physical Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | - P. Garstecki
- Institute of Physical Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
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Abolhasani M, Jensen KF. Oscillatory multiphase flow strategy for chemistry and biology. LAB ON A CHIP 2016; 16:2775-2784. [PMID: 27397146 DOI: 10.1039/c6lc00728g] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Continuous multiphase flow strategies are commonly employed for high-throughput parameter screening of physical, chemical, and biological processes as well as continuous preparation of a wide range of fine chemicals and micro/nano particles with processing times up to 10 min. The inter-dependency of mixing and residence times, and their direct correlation with reactor length have limited the adaptation of multiphase flow strategies for studies of processes with relatively long processing times (0.5-24 h). In this frontier article, we describe an oscillatory multiphase flow strategy to decouple mixing and residence times and enable investigation of longer timescale experiments than typically feasible with conventional continuous multiphase flow approaches. We review current oscillatory multiphase flow technologies, provide an overview of the advancements of this relatively new strategy in chemistry and biology, and close with a perspective on future opportunities.
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Affiliation(s)
- Milad Abolhasani
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, 66-342, Cambridge, MA 02139, USA.
| | - Klavs F Jensen
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, 66-342, Cambridge, MA 02139, USA.
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Lestari G, Salari A, Abolhasani M, Kumacheva E. A microfluidic study of liquid-liquid extraction mediated by carbon dioxide. LAB ON A CHIP 2016; 16:2710-2718. [PMID: 27327198 DOI: 10.1039/c6lc00597g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Liquid-liquid extraction is an important separation and purification method; however, it faces a challenge in reducing the energy consumption and the environmental impact of solvent (extractant) recovery. The reversible chemical reactions of switchable solvents (nitrogenous bases) with carbon dioxide (CO2) can be implemented in reactive liquid-liquid extraction to significantly reduce the cost and energy requirements of solvent recovery. The development of new effective switchable solvents reacting with CO2 and the optimization of extraction conditions rely on the ability to evaluate and screen the performance of switchable solvents in extraction processes. We report a microfluidic strategy for time- and labour-efficient studies of CO2-mediated solvent extraction. The platform utilizes a liquid segment containing an aqueous extractant droplet and a droplet of a solution of a switchable solvent in a non-polar liquid, with gaseous CO2 supplied to the segment from both sides. Following the reaction of the switchable solvent with CO2, the solvent becomes hydrophilic and transfers from the non-polar solvent to the aqueous droplet. By monitoring the time-dependent variation in droplet volumes, we determined the efficiency and extraction time for the CO2-mediated extraction of different nitrogenous bases in a broad experimental parameter space. The platform enables a significant reduction in the amount of switchable solvents used in these studies, provides accurate temporal characterization of the liquid-liquid extraction process, and offers the capability of high-throughput screening of switchable solvents.
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Affiliation(s)
- Gabriella Lestari
- Department of Chemical Engineering, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada
| | - Alinaghi Salari
- Department of Chemical Engineering, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada
| | - Milad Abolhasani
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Building 66-525, Cambridge, MA 02139, USA.
| | - Eugenia Kumacheva
- Department of Chemical Engineering, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada and Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, ON M5S 3H6, Canada. and Institute of Biomaterials and Biomedical Engineering, University of Toronto, 164 College Street, Toronto, ON M5S 3G9, Canada
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