1
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Yao Y, Catalini S, Foggi P, Mezzenga R. Water-lipid interface in lipidic mesophases with excess water. Faraday Discuss 2024; 249:469-484. [PMID: 37786338 PMCID: PMC10845009 DOI: 10.1039/d3fd00118k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Accepted: 06/27/2023] [Indexed: 10/04/2023]
Abstract
This study investigates the influence of excess water on the lipidic mesophase during the phase transition from diamond cubic phase (Pn3̄m) to reverse hexagonal phase (HII). Using a combination of small angle X-ray scattering (SAXS), broadband dielectric spectroscopy (BDS), and Fourier transform infrared (FTIR) techniques, we explore the dynamics of lipids and their interaction with water during phase transition. Our BDS results reveal three relaxation processes originating from lipids, all of which exhibit a kink during the phase transition. With the excess water, these processes accelerate due to the plasticizing effect of water. Additionally, our results demonstrate that the headgroups in the HII phase are more densely packed than those in the Pn3̄m phase, which agrees with the FTIR results. Meanwhile, we investigate the influence of excess water on the lipid headgroups, the H-bond network of water, the lipid tail, and the interface carbonyl group between the head and tail of the lipid molecule. The results indicate that excess water permeates the lipid interface and forms additional hydrogen bonds with the carbonyl groups. As a result, the headgroups are more flexible in a lipidic mesophase with excess water than those in mesophases without excess water.
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Affiliation(s)
- Yang Yao
- Department of Health Sciences and Technology, ETH Zürich, 8092 Zürich, Switzerland.
| | - Sara Catalini
- European Laboratory for Non-Linear Spectroscopy, LENS, 50019 Florence, Italy
- Department of Physic and Geology, University of Perugia, 06123 Perugia, Italy
- CNR-INO, National Research Council-National Institute of Optics, 50125 Florence, Italy
| | - Paolo Foggi
- European Laboratory for Non-Linear Spectroscopy, LENS, 50019 Florence, Italy
- CNR-INO, National Research Council-National Institute of Optics, 50125 Florence, Italy
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06123 Perugia, Italy
| | - Raffaele Mezzenga
- Department of Health Sciences and Technology, ETH Zürich, 8092 Zürich, Switzerland.
- Department of Materials, ETH Zürich, 8093 Zürich, Switzerland
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2
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Züblin P, Zeller A, Moulis C, Remaud-Simeon M, Yao Y, Mezzenga R. Expanding the Enzymatic Polymerization Landscape by Lipid Mesophase Soft Nanoconfinement. Angew Chem Int Ed Engl 2024; 63:e202312880. [PMID: 37962302 DOI: 10.1002/anie.202312880] [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: 08/31/2023] [Revised: 11/13/2023] [Accepted: 11/14/2023] [Indexed: 11/15/2023]
Abstract
Soft nanoconfinement can increase chemical reactivity in nature and has therefore led to considerable interest in transferring this universal feature to artificial biological systems. However, little is known about the underlying principles of soft nanoconfinement responsible for the enhancement of biochemical reactions. Herein we demonstrate how enzymatic polymerization can be expanded, optimized, and engineered when carried out under soft nanoconfinement mediated by lipidic mesophases. By systematically varying the water content in the mesophase and thus the diameter of the confined water nanochannels, we show higher efficiency, turnover rate, and degrees of polymerization as compared to the bulk aqueous solution, all controlled by soft nanoconfinement effects. Furthermore, we exploit the unique properties of unfreezing soft nanoconfined water to perform the first enzymatic polymerization at -20 °C in pure aqueous media. These results underpin lipidic mesophases as a versatile host system for chemical reactions and promote them as an original and unexplored platform for enzymatic polymerization.
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Affiliation(s)
- Patrick Züblin
- Department of Health Sciences and Technology, ETH Zürich, Schmelzbergstrasse 9, 8092, Zürich, Switzerland
| | - Adrian Zeller
- Department of Health Sciences and Technology, ETH Zürich, Schmelzbergstrasse 9, 8092, Zürich, Switzerland
| | - Claire Moulis
- TBI, Université de Toulouse, CNRS, INRAE, INSA, 135 Av. de Rangueil, 31400, Toulouse, France
| | - Magali Remaud-Simeon
- TBI, Université de Toulouse, CNRS, INRAE, INSA, 135 Av. de Rangueil, 31400, Toulouse, France
| | - Yang Yao
- Department of Health Sciences and Technology, ETH Zürich, Schmelzbergstrasse 9, 8092, Zürich, Switzerland
| | - Raffaele Mezzenga
- Department of Health Sciences and Technology, ETH Zürich, Schmelzbergstrasse 9, 8092, Zürich, Switzerland
- Department of Materials, ETH Zürich, Wolfgang-Pauli-Strasse 10, 8093, Zürich, Switzerland
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3
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Yi H, Almatrafi E, Ma D, Huo X, Qin L, Li L, Zhou X, Zhou C, Zeng G, Lai C. Spatial confinement: A green pathway to promote the oxidation processes for organic pollutants removal from water. WATER RESEARCH 2023; 233:119719. [PMID: 36801583 DOI: 10.1016/j.watres.2023.119719] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 11/27/2022] [Accepted: 02/04/2023] [Indexed: 06/18/2023]
Abstract
Organic pollutants removal from water is pressing owing to the great demand for clean water. Oxidation processes (OPs) are the commonly used method. However, the efficiency of most OPs is limited owing to the poor mass transfer process. Spatial confinement is a burgeoning way to solve this limitation by use of nanoreactor. Spatial confinement in OPs would (i) alter the transport characteristics of protons and charges; (ii) bring about molecular orientation and rearrangement; (iii) cause the dynamic redistribution of active sites in catalyst and reduce the entropic barrier that is high in unconfined space. So far, spatial confinement has been utilized for various OPs, such as Fenton, persulfate, and photocatalytic oxidation. A comprehensive summary and discussion on the fundamental mechanisms of spatial confinement mediated OPs is needed. Herein, the application, performance and mechanisms of spatial confinement mediated OPs are overviewed firstly. Subsequently, the features of spatial confinement and their effects on OPs are discussed in detail. Furthermore, environmental influences (including environmental pH, organic matter and inorganic ions) are studied with analyzing their intrinsic connection with the features of spatial confinement in OPs. Lastly, challenges and future development direction of spatial confinement mediated OPs are proposed.
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Affiliation(s)
- Huan Yi
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, P.R. China; Center of Research Excellence in Renewable Energy and Power Systems, Center of Excellence in Desalination Technology, Department of Mechanical Engineering, Faculty of Engineering-Rabigh, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Eydhah Almatrafi
- Center of Research Excellence in Renewable Energy and Power Systems, Center of Excellence in Desalination Technology, Department of Mechanical Engineering, Faculty of Engineering-Rabigh, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Dengsheng Ma
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, P.R. China
| | - Xiuqing Huo
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, P.R. China
| | - Lei Qin
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, P.R. China
| | - Ling Li
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, P.R. China
| | - Xuerong Zhou
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, P.R. China
| | - Chengyun Zhou
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, P.R. China; Center of Research Excellence in Renewable Energy and Power Systems, Center of Excellence in Desalination Technology, Department of Mechanical Engineering, Faculty of Engineering-Rabigh, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, P.R. China; Center of Research Excellence in Renewable Energy and Power Systems, Center of Excellence in Desalination Technology, Department of Mechanical Engineering, Faculty of Engineering-Rabigh, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.
| | - Cui Lai
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, P.R. China; Center of Research Excellence in Renewable Energy and Power Systems, Center of Excellence in Desalination Technology, Department of Mechanical Engineering, Faculty of Engineering-Rabigh, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.
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4
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Interplay of Hydropathy and Heterogeneous Diffusion in the Molecular Transport within Lamellar Lipid Mesophases. Pharmaceutics 2023; 15:pharmaceutics15020573. [PMID: 36839895 PMCID: PMC9959094 DOI: 10.3390/pharmaceutics15020573] [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: 12/14/2022] [Revised: 01/18/2023] [Accepted: 02/03/2023] [Indexed: 02/11/2023] Open
Abstract
Lipid mesophases are being intensively studied as potential candidates for drug-delivery purposes. Extensive experimental characterization has unveiled a wide palette of release features depending on the nature of the host lipids and of the guest molecule, as well as on the environmental conditions. However, only a few simulation works have addressed the matter, which hampers a solid rationalization of the richness of outcomes observed in experiments. Particularly, to date, there are no theoretical works addressing the impact of hydropathy on the transport of a molecule within lipid mesophases, despite the significant fraction of hydrophobic molecules among currently-available drugs. Similarly, the high heterogeneity of water mobility in the nanoscopic channels within lipid mesophases has also been neglected. To fill this gap, we introduce here a minimal model to account for these features in a lamellar geometry, and systematically study the role played by hydropathy and water-mobility heterogeneity by Brownian-dynamics simulations. We unveil a fine interplay between the presence of free-energy barriers, the affinity of the drug for the lipids, and the reduced mobility of water in determining the net molecular transport. More in general, our work is an instance of how multiscale simulations can be fruitfully employed to assist experiments in release systems based on lipid mesophases.
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Zhang S, Hedtke T, Wang L, Wang X, Cao T, Elimelech M, Kim JH. Engineered Nanoconfinement Accelerating Spontaneous Manganese-Catalyzed Degradation of Organic Contaminants. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:16708-16715. [PMID: 34852199 DOI: 10.1021/acs.est.1c06551] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Manganese(III/IV) oxide minerals are known to spontaneously degrade organic pollutants in nature. However, the kinetics are too slow to be useful for engineered water treatment processes. Herein, we demonstrate that nanoscale Mn3O4 particles under nanoscale spatial confinement (down to 3-5 nm) can significantly accelerate the kinetics of pollutant degradation, nearly 3 orders of magnitude faster compared to the same reaction in the unconfined bulk phase. We first employed an anodized aluminum oxide scaffold with uniform channel dimensions for experimental and computational studies. We found that the observed kinetic enhancement resulted from the increased surface area of catalysts exposed to the reaction, as well as the increased local proton concentration at the Mn3O4 surface and subsequent acceleration of acid-catalyzed reactions even at neutral pH in bulk. We further demonstrate that a reactive Mn3O4-functionalized ceramic ultrafiltration membrane, a more suitable scaffold for realistic water treatment, achieved nearly complete removal of various phenolic and aniline pollutants, operated under a common ultrafiltration water flux. Our findings mark an important advance toward the development of catalytic membranes that can degrade pollutants in addition to their intrinsic function as a physical separation barrier, especially since they are based on accelerating natural catalytic pathways that do not require any chemical addition.
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Affiliation(s)
- Shuo Zhang
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Ave, New Haven, Connecticut 06511, United States
| | - Tayler Hedtke
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Ave, New Haven, Connecticut 06511, United States
| | - Li Wang
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Ave, New Haven, Connecticut 06511, United States
| | - Xiaoxiong Wang
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Ave, New Haven, Connecticut 06511, United States
| | - Tianchi Cao
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Ave, New Haven, Connecticut 06511, United States
| | - Menachem Elimelech
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Ave, New Haven, Connecticut 06511, United States
| | - Jae-Hong Kim
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Ave, New Haven, Connecticut 06511, United States
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6
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Yao Y, Catalini S, Kutus B, Hunger J, Foggi P, Mezzenga R. Probing Water State during Lipidic Mesophases Phase Transitions. Angew Chem Int Ed Engl 2021; 60:25274-25280. [PMID: 34558162 PMCID: PMC9298331 DOI: 10.1002/anie.202110975] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/16/2021] [Indexed: 11/30/2022]
Abstract
We investigate the static and dynamic states of water network during the phase transitions from double gyroid ( I a 3 ‾ d ) to double diamond ( P n 3 ‾ m ) bicontinuous cubic phases and from the latter to the reverse hexagonal (HII ) phase in monolinolein based lipidic mesophases by combining FTIR and broadband dielectric spectroscopy (BDS). In both cubic(s) and HII phase, two dynamically different fractions of water are detected and attributed to bound and interstitial free water. The dynamics of the two water fractions are all slower than bulk water due to the hydrogen-bonds between water molecules and the lipid's polar headgroups and to nanoconfinement. Both FTIR and BDS results suggest that a larger fraction of water is hydrogen-bonded to the headgroup of lipids in the HII phase at higher temperature than in the cubic phase at lower temperature via H-bonds, which is different from the common expectation that the number of H-bonds should decrease with increase of temperature. These findings are rationalized by considering the topological ratio of interface/volume of the two mesophases.
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Affiliation(s)
- Yang Yao
- Department of Health Sciences and TechnologyETH ZürichSchmelzbergstrasse 98092ZürichSwitzerland
| | - Sara Catalini
- European Laboratory for Non-Linear Spectroscopy, LENSVia Nello Carrara 150019FlorenceItaly
| | - Bence Kutus
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Johannes Hunger
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Paolo Foggi
- European Laboratory for Non-Linear Spectroscopy, LENSVia Nello Carrara 150019FlorenceItaly
- Department of ChemistryUniversity of PerugiaVia Elce di Sotto 806123PerugiaItaly
| | - Raffaele Mezzenga
- Department of Health Sciences and TechnologyETH ZürichSchmelzbergstrasse 98092ZürichSwitzerland
- Department of MaterialsETH ZürichWolfgang-Pauli-Strasse 108093ZürichSwitzerland
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7
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Yao Y, Catalini S, Kutus B, Hunger J, Foggi P, Mezzenga R. Probing Water State during Lipidic Mesophases Phase Transitions. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202110975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yang Yao
- Department of Health Sciences and Technology ETH Zürich Schmelzbergstrasse 9 8092 Zürich Switzerland
| | - Sara Catalini
- European Laboratory for Non-Linear Spectroscopy, LENS Via Nello Carrara 1 50019 Florence Italy
| | - Bence Kutus
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
| | - Johannes Hunger
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
| | - Paolo Foggi
- European Laboratory for Non-Linear Spectroscopy, LENS Via Nello Carrara 1 50019 Florence Italy
- Department of Chemistry University of Perugia Via Elce di Sotto 8 06123 Perugia Italy
| | - Raffaele Mezzenga
- Department of Health Sciences and Technology ETH Zürich Schmelzbergstrasse 9 8092 Zürich Switzerland
- Department of Materials ETH Zürich Wolfgang-Pauli-Strasse 10 8093 Zürich Switzerland
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8
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Zhou T, Yao Y, Zhang Q, Mezzenga R. Cryogenic activity and stability of benzaldehyde lyase enzyme in lipidic mesophases-nanoconfined water. Chem Commun (Camb) 2021; 57:5650-5653. [PMID: 33972973 DOI: 10.1039/d1cc01315g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Phytantriol-based lipidic mesophases (LMs) are introduced as a platform for cryoenzymology, which relies on the presence of liquid water in LMs at subzero temperatures. After incorporation into LMs, the model enzyme Benzaldehyde lyase (BAL) shows high cryogenic stability and activity. In contrast, BAL in bulk solution undergoes significant secondary structural transitions caused by low temperatures (cold denaturation), demonstrating the potential of this approach to enable in meso cryoenzymology.
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Affiliation(s)
- Tao Zhou
- Department of Health Sciences and Technology, ETH Zürich, 8092 Zurich, Switzerland.
| | - Yang Yao
- Department of Health Sciences and Technology, ETH Zürich, 8092 Zurich, Switzerland.
| | - Qin Zhang
- Department of Health Sciences and Technology, ETH Zürich, 8092 Zurich, Switzerland. and Institut des Sciences et Ingénierie Chimiques, EPFL, 1015 Lausanne, Switzerland
| | - Raffaele Mezzenga
- Department of Health Sciences and Technology, ETH Zürich, 8092 Zurich, Switzerland. and Department of Materials, ETH Zurich, 8093 Zürich, Switzerland
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9
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Yao Y, Zhou T, Färber R, Grossner U, Floudas G, Mezzenga R. Designing cryo-enzymatic reactions in subzero liquid water by lipidic mesophase nanoconfinement. NATURE NANOTECHNOLOGY 2021; 16:802-810. [PMID: 33941918 DOI: 10.1038/s41565-021-00893-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 03/10/2021] [Indexed: 06/12/2023]
Abstract
Cryo-enzymology provides the possibility to develop unconventional biological reactions and detect intermediates in ultrafast enzymatic catalysis processes, but also illuminates the understanding of life principles in extremely cold environments. The scarcity of biological or biomimetic host systems that provide liquid water at subzero temperatures inhibits the prosperity of cryo-enzymology. Here we introduce cryo-enzymatic reactions in subzero water nanoconfined within lipid mesophases formed by conventional lipids. We show that the enzymatic reactions that ensue outperform the homologue catalytic processes run at standard temperatures. We use phytantriol-based lipidic mesophases (LMPs), within which water remains in the liquid state down to -120 °C, and combine crystallization and dynamic studies of the confined water to provide a fundamental understanding of the physical status of water at subzero temperatures, which sets the stage for cryo-enzymatic reactions in these environments. In the model horseradish peroxidase oxidization, the cation free-radical product is stabilized in LMPs at -20 °C, in contrast to the fast-consuming reactions at temperatures above 0 °C. Furthermore, the LMP system also supports the cascade reaction and lipase reaction at subzero temperatures, at which enzymatic reactions with both hydrophilic and hydrophobic substrates are successfully carried out. Our designed LMP system opens access to the nature of confined water in the biomimetic environment and provides a platform for low-temperature biomacromolecule reconstitution and the cryogenic control of enzymatic reactions in bionanotechnology.
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Affiliation(s)
- Yang Yao
- Department of Health Sciences and Technology, ETH Zürich, Zürich, Switzerland
| | - Tao Zhou
- Department of Health Sciences and Technology, ETH Zürich, Zürich, Switzerland
| | - Raphael Färber
- High Voltage Laboratory, ETH Zürich, Zürich, Switzerland
| | - Ulrike Grossner
- Advanced Power Semiconductor Laboratory, ETH Zürich, Zürich, Switzerland
| | - George Floudas
- Max Planck Institute for Polymer Research, Mainz, Germany
- Department of Physics, University of Ioannina, Ioannina, Greece
| | - Raffaele Mezzenga
- Department of Health Sciences and Technology, ETH Zürich, Zürich, Switzerland.
- Department of Materials, ETH Zürich, Zürich, Switzerland.
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10
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Salvati Manni L, Duss M, Assenza S, Boyd BJ, Landau EM, Fong WK. Enzymatic hydrolysis of monoacylglycerols and their cyclopropanated derivatives: Molecular structure and nanostructure determine the rate of digestion. J Colloid Interface Sci 2021; 588:767-775. [PMID: 33309146 DOI: 10.1016/j.jcis.2020.11.110] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/16/2020] [Accepted: 11/26/2020] [Indexed: 12/31/2022]
Abstract
Colloidal lipidic particles with different space groups and geometries (mesosomes) are employed in the development of new nanosystems for the oral delivery of drugs and nutrients. Understanding of the enzymatic digestion rate of these particles is key to the development of novel formulations. In this work, the molecular structure of the lipids has been systematically tuned to examine the effect on their self-assembly and digestion rate. The kinetic and phase changes during the lipase-catalysed hydrolysis of mesosomes formed by four synthetic cyclopropanated lipids and their cis-unsaturated analogues were monitored by dynamic small angle X-ray scattering and acid/base titration. It was established that both the phase behaviour and kinetics of the hydrolysis are greatly affected by small changes in the molecular structure of the lipid as well as by the internal nanostructure of the colloidal particles.
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Affiliation(s)
- Livia Salvati Manni
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland; School of Chemistry and University of Sydney Nano Institute, The University of Sydney, NSW 2006, Australia.
| | - Michael Duss
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland; Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, Canada
| | - Salvatore Assenza
- Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, E-28049 Madrid, Spain; Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, E-28049 Madrid, Spain
| | - Ben J Boyd
- Drug Delivery, Disposition and Dynamics and ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Ehud M Landau
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland.
| | - Wye-Khay Fong
- Discipline of Chemistry, School of Environmental and Life Sciences, University of Newcastle, Callaghan 2308, NSW, Australia.
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11
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Lai X, Ding Y, Wu CM, Chen X, Jiang JH, Hsu HY, Wang Y, Le Brun AP, Song J, Han ML, Li J, Shen HH. Phytantriol-Based Cubosome Formulation as an Antimicrobial against Lipopolysaccharide-Deficient Gram-Negative Bacteria. ACS APPLIED MATERIALS & INTERFACES 2020; 12:44485-44498. [PMID: 32942850 DOI: 10.1021/acsami.0c13309] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Treatment of multidrug-resistant (MDR) bacterial infections increasingly relies on last-line antibiotics, such as polymyxins, with the urgent need for discovery of new antimicrobials. Nanotechnology-based antimicrobials have gained significant importance to prevent the catastrophic emergence of MDR over the past decade. In this study, phytantriol-based nanoparticles, named cubosomes, were prepared and examined in vitro by minimum inhibitory concentration (MIC) and time-kill assays against Gram-negative bacteria: Acinetobacter baumannii, Klebsiella pneumoniae, and Pseudomonas aeruginosa. Phytantriol-based cubosomes were highly bactericidal against polymyxin-resistant, lipopolysaccharide (LPS)-deficient A. baumannii strains. Small-angle neutron scattering (SANS) was employed to understand the structural changes in biomimetic membranes that replicate the composition of these LPS-deficient strains upon treatment with cubosomes. Additionally, to further understand the membrane-cubosome interface, neutron reflectivity (NR) was used to investigate the interaction of cubosomes with model bacterial membranes on a solid support. These results reveal that cubosomes might be a new strategy for combating LPS-deficient Gram-negative pathogens.
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Affiliation(s)
- Xiangfeng Lai
- Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Yue Ding
- Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton, Victoria 3800, Australia
- Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria 3800, Australia
| | - Chun-Ming Wu
- Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, New South Wales 2232, Australia
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Xiaoyu Chen
- Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Jhih-Hang Jiang
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, Victoria 3800, Australia
| | - Hsien-Yi Hsu
- School of Energy and Environment & Department of Materials Science and Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong, China
- Shenzhen Research Institute of City University of Hong Kong, Shenzhen 518057, China
| | - Yajun Wang
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325027, Zhejiang, China
| | - Anton P Le Brun
- Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, New South Wales 2232, Australia
| | - Jiangning Song
- Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria 3800, Australia
| | - Mei-Ling Han
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, Victoria 3800, Australia
| | - Jian Li
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, Victoria 3800, Australia
| | - Hsin-Hui Shen
- Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton, Victoria 3800, Australia
- Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria 3800, Australia
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12
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Vallooran JJ, Duss M, Ansorge P, Mezzenga R, Landau EM. Stereochemical Purity Can Induce a New Crystalline Mesophase in Phytantriol Lipids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:9132-9141. [PMID: 32654490 DOI: 10.1021/acs.langmuir.0c01344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The impact of stereochemical purity of lipids on their self-assembly behavior is critical for establishing their true phase behavior from their commercial counterparts, which often contains stereoisomeric mixtures and other impurities. Here, stereochemically pure phytantriol (PT), (3,7,11,15-tetramethylhexadecane-1,2,3-triol) was synthesized from the natural trans-phytol and its thermotropic and lyotropic phase behavior in water investigated by small-angle X-ray scattering (SAXS), polarized optical microscopy (POM), and differential scanning calorimetry (DSC). These chemically pure lipids contain two chiral centers at the hydrophilic head group region and two chiral centers at the lipophilic tail region, allowing us to address the question of whether the molecular stereochemistry is related to the macroscopic phase behavior of phytantriol. In contrast to its commercial stereoisomeric mixtures, which form an isotropic micellar phase, neat (2S,3S,7R,11R)-3,7,11,15-tetramethylhexadecane-1,2,3-triol (S,S-PT) shows a smectic lamellar phase at room temperature, whereas (2R,3R,7R,11R)-3,7,11,15-tetramethylhexadecane-1,2,3-triol (R,R-PT) forms solid crystals. The lyotropic phase behavior of R,R-PT appears to be identical to that of the previously reported commercial stereoisomeric PT mixtures. In contrast, S,S-PT exhibits a different phase behavior. A lamellar crystalline phase (Lc) is formed instead of an isotropic micellar phase at a low water content, which also coexisted with other phases at low temperature. Subtle change in the shape of the diastereomers leads to variable steric interactions and subsequently affects the packing of the lipids at the molecular level, thereby influencing its self-assembling behavior. Finally, lipidic cubic phase crystallization of the membrane protein bacteriorhodopsin yielded a larger number of microcrystals with a higher average crystal length from S,S-PT than from commercial PT, suggesting faster nucleation.
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Affiliation(s)
- Jijo J Vallooran
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Michael Duss
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Philipp Ansorge
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Raffaele Mezzenga
- Department of Health Sciences & Technology, ETH Zurich, Schmelzbergstrasse 9, 8092 Zürich, Switzerland
| | - Ehud M Landau
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
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Salvati Manni L, Fong WK, Mezzenga R. Lipid-based mesophases as matrices for nanoscale reactions. NANOSCALE HORIZONS 2020; 5:914-927. [PMID: 32322863 DOI: 10.1039/d0nh00079e] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Lipidic mesophases are versatile bioorganic materials that have been effectively employed as nanoscale matrices for membrane protein crystallization, drug delivery and as food emulsifiers over the last 30 years. In this review, the focus is upon studies that have employed non-lamellar lipid mesophases as matrices for organic, inorganic and enzymatic reactions. The ability of lipidic mesophases to incorporate hydrophilic, amphiphilic and hydrophobic molecules, together with the high interfacial area of the lipidic cubic and inverse hexagonal phases has been exploited in heterogeneous catalysis as well as for enzyme immobilization. The unique nanostructure of these mesophases is the driving force behind their ability to act as templates for synthesis, resulting in the creation of highly ordered polymeric and inorganic materials with complex geometries.
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Affiliation(s)
- Livia Salvati Manni
- Department of Health Sciences and Technology, Swiss Federal Institute of Technology in Zurich, 8092 Zurich, Switzerland.
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Desmons S, Fauré R, Bontemps S. Formaldehyde as a Promising C1 Source: The Instrumental Role of Biocatalysis for Stereocontrolled Reactions. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03128] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Sarah Desmons
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, France
- TBI, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France
| | - Régis Fauré
- TBI, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France
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Tosi F, Stuart MCA, Smit H, Chen J, Feringa BL. Reorganization from Kinetically Stable Aggregation States to Thermodynamically Stable Nanotubes of BINOL-Derived Amphiphiles in Water. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:11821-11828. [PMID: 31424218 PMCID: PMC6740276 DOI: 10.1021/acs.langmuir.9b01989] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 08/14/2019] [Indexed: 06/10/2023]
Abstract
The synthesis and self-assembly behavior of newly designed BINOL-based amphiphiles is presented. With minor structural modifications, the aggregation of these amphiphiles could be successfully tuned to form different types of assemblies in water, ranging from vesicles to cubic structures. Simple sonication induced the rearrangement of different kinetically stable aggregates into thermodynamically stable self-assembled nanotubes, as observed by cryo-TEM.
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Affiliation(s)
- Filippo Tosi
- Stratingh
Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Marc C. A. Stuart
- Stratingh
Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
- Groningen
Biomolecular Sciences and Biotechnology Institute, University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
| | - Hans Smit
- Stratingh
Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Jiawen Chen
- Stratingh
Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Ben L. Feringa
- Stratingh
Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
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Vallooran JJ, Assenza S, Mezzenga R. Spatiotemporal Control of Enzyme‐Induced Crystallization Under Lyotropic Liquid Crystal Nanoconfinement. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jijo J. Vallooran
- Department of Health Science and TechnologyETH Zurich Schmelzbergstrasse 9 8092 Zürich Switzerland
- Department of ChemistryUniversity of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Salvatore Assenza
- Department of Health Science and TechnologyETH Zurich Schmelzbergstrasse 9 8092 Zürich Switzerland
| | - Raffaele Mezzenga
- Department of Health Science and TechnologyETH Zurich Schmelzbergstrasse 9 8092 Zürich Switzerland
- Department of MaterialsETH Zurich Wolfgang-Pauli-Strasse 10 8093 Zurich Switzerland
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17
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Vallooran JJ, Assenza S, Mezzenga R. Spatiotemporal Control of Enzyme‐Induced Crystallization Under Lyotropic Liquid Crystal Nanoconfinement. Angew Chem Int Ed Engl 2019; 58:7289-7293. [DOI: 10.1002/anie.201901078] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 03/19/2019] [Indexed: 11/08/2022]
Affiliation(s)
- Jijo J. Vallooran
- Department of Health Science and TechnologyETH Zurich Schmelzbergstrasse 9 8092 Zürich Switzerland
- Department of ChemistryUniversity of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Salvatore Assenza
- Department of Health Science and TechnologyETH Zurich Schmelzbergstrasse 9 8092 Zürich Switzerland
| | - Raffaele Mezzenga
- Department of Health Science and TechnologyETH Zurich Schmelzbergstrasse 9 8092 Zürich Switzerland
- Department of MaterialsETH Zurich Wolfgang-Pauli-Strasse 10 8093 Zurich Switzerland
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Zhou T, Vallooran JJ, Mezzenga R. Supramolecular chirality and crystallization from biocatalytic self-assembly in lipidic cubic mesophases. NANOSCALE 2019; 11:5891-5895. [PMID: 30874704 DOI: 10.1039/c8nr09671f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Biocatalytic self-assembly in a nanoconfined environment is widely used in nature to construct complex structures that endow special characteristics to life. There is tremendous interest in mimicking such bottom-up processes to fabricate functional materials. In this study, we have investigated a novel biomimetic scaffold based on lipidic cubic mesophases (LCMs), which provide a special nanoconfined environment for biocatalytic self-assembly and subsequent formation of organic crystals. (R)-Benzoin generated in situ from benzaldehyde in a reaction catalyzed by the enzyme benzaldehyde lyase (BAL) exhibits - when confined within LCMs - enhanced chirality compared to (R)-benzoin in solution or (R)-benzoin-doped LCMs. We infer that a metastable state is formed under kinetic control that displays enhanced supramolecular chirality. As they age, these metastable structures can further grow into thermodynamically stable crystals. The biomimetic, nanoconfined environment provided by the LCMs plays a key role in the development of supramolecular chirality and subsequent crystallization.
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Affiliation(s)
- Tao Zhou
- Department of Health Science and Technology, ETH Zurich, Schmelzbergstrasse 9, 8092 Zürich, Switzerland.
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Duss M, Vallooran JJ, Salvati Manni L, Kieliger N, Handschin S, Mezzenga R, Jessen HJ, Landau EM. Lipidic Mesophase-Embedded Palladium Nanoparticles: Synthesis and Tunable Catalysts in Suzuki-Miyaura Cross-Coupling Reactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:120-127. [PMID: 30517017 DOI: 10.1021/acs.langmuir.8b02905] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Lipidic cubic phases (LCPs) can reduce Pd2+ salts to palladium nanoparticles (PdNPs) of ∼5 nm size in their confined water channels under mild conditions. The resulting PdNP-containing LCPs were used as nanoreactor scaffolds to catalyze Suzuki-Miyaura cross-coupling reactions in the aqueous channels of the mesophase. To turn on catalysis, PdNP-containing LCPs were activated by swelling the aqueous channels of the lipidic framework, thereby enabling diffusion of the water-soluble substrates to the catalysts. The mesophases play a threefold role: they act as reducing agents for Pd2+, as limiting templates for their growth, and as support. The system was characterized and investigated by small-angle X-ray scattering (SAXS), cryo-transmission electron microscopy, dynamic light scattering, and nuclear magnetic resonance. Bulk LCPs and three dispersed palladium/lipid hybrid nanoparticle types were applied in the catalysis. The latter-liposomes, hexosomes, and cubosomes-can be obtained by design through combination of lipids and additives. The Suzuki-Miyaura cross-coupling of 5-iodo-2'-deoxyuridine and phenylboronic acid was used as a model reaction to study these systems. Bulk Pd-LCPs deliver the Suzuki-Miyaura product in 24 h in conversions up to 98% at room temperature, whereas with palladium/lipid dispersions at 40 °C, 68% of the starting material was transformed to the product after 72 h.
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Affiliation(s)
- Michael Duss
- Department of Chemistry , University of Zurich , Winterthurerstrasse 190 , 8057 Zürich , Switzerland
| | - Jijo J Vallooran
- Department of Chemistry , University of Zurich , Winterthurerstrasse 190 , 8057 Zürich , Switzerland
| | - Livia Salvati Manni
- Department of Chemistry , University of Zurich , Winterthurerstrasse 190 , 8057 Zürich , Switzerland
- Department of Health Science & Technology , ETH Zurich , Schmelzbergstrasse 9 , 8092 Zürich , Switzerland
| | - Nicole Kieliger
- Department of Chemistry , University of Zurich , Winterthurerstrasse 190 , 8057 Zürich , Switzerland
| | - Stephan Handschin
- Department of Health Science & Technology , ETH Zurich , Schmelzbergstrasse 9 , 8092 Zürich , Switzerland
| | - Raffaele Mezzenga
- Department of Health Science & Technology , ETH Zurich , Schmelzbergstrasse 9 , 8092 Zürich , Switzerland
| | - Henning J Jessen
- Institute of Organic Chemistry , Albert-Ludwigs-University of Freiburg , Albertstrasse 21 , 79104 Freiburg i. B. , Germany
| | - Ehud M Landau
- Department of Chemistry , University of Zurich , Winterthurerstrasse 190 , 8057 Zürich , Switzerland
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Serrano-Luginbühl S, Ruiz-Mirazo K, Ostaszewski R, Gallou F, Walde P. Soft and dispersed interface-rich aqueous systems that promote and guide chemical reactions. Nat Rev Chem 2018. [DOI: 10.1038/s41570-018-0042-6] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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