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Rosso AP, de Oliveira FA, Guégan P, Jager E, Giacomelli FC. Evaluation of polymersome permeability as a fundamental aspect towards the development of artificial cells and nanofactories. J Colloid Interface Sci 2024; 671:88-99. [PMID: 38795537 DOI: 10.1016/j.jcis.2024.05.133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 05/06/2024] [Accepted: 05/18/2024] [Indexed: 05/28/2024]
Abstract
Polymersomes are synthetic vesicles with potential use in healthcare, chemical transformations in confined environment (nanofactories), and in the construction of artificial cells and organelles. In this framework, one of the most important features of such supramolecular structures is the permeability behavior allowing for selective control of mass exchange between the inner and outer compartments. The use of biological and synthetic nanopores in this regard is the most common strategy to impart permeability nevertheless, this typically requires fairly complex strategies to enable porosity. Yet, investigations concerning the permeability of polymer vesicles to different analytes still requires further exploration and, taking these considerations into account, we have detailed investigated the permeability behavior of a variety of polymersomes with regard to different analytes (water, protons, and rhodamine B) which were selected as models for solvents, ions, and small molecules. Polymersomes based on hydrophilic blocks of poly[N-(2-hydroxypropyl)methacrylamide] (PHPMA) or PEO (poly(ethylene oxide)) linked to the non-responsive blocks poly[N-(4-isopropylphenylacetamide)ethyl methacrylate] (PPPhA) or poly(methyl methacrylate) (PMMA), or to the stimuli pH-responsive block poly[2-(diisopropylamino)ethyl methacrylate] (PDPA) have been investigated. Interestingly, the produced PEO-based vesicles are notably larger than the ones produced using PHPMA-containing block copolymers. The experimental results reveal that all the vesicles are inherently permeable to some extent with permeability behavior following exponential profiles. Nevertheless, polymersomes based on PMMA as the hydrophobic component were demonstrated to be the least permeable to the small molecule rhodamine B as well as to water. The synthetic vesicles based on the pH-responsive PDPA block exhibited restrictive and notably slow proton permeability as attributed to partial chain protonation upon acidification of the medium. The dye permeability was evidenced to be much slower than ion or solvent diffusion, and in the case of pH-responsive assemblies, it was demonstrated to also depend on the ionic strength of the environment. These findings are understood to be highly relevant towards polymer selection for the production of synthetic vesicles with selective and time-dependent permeability, and it may thus contribute in advancing biomimicry and nanomedicine.
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Affiliation(s)
- Anabella P Rosso
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil
| | | | - Philippe Guégan
- Equipe Chimie des Polymères, Institut Parisien de Chimie Moléculaire (UMR-CNRS 8232), Sorbonne Université, Paris, France
| | - Eliezer Jager
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Fernando C Giacomelli
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil.
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2
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Jäger E, Černoch P, Vragovic M, Calumby Albuquerque LJ, Sincari V, Heizer T, Jäger A, Kučka J, Janoušková OŠ, Pavlova E, Šefc L, Giacomelli FC. Membrane Permeability and Responsiveness Drive Performance: Linking Structural Features with the Antitumor Effectiveness of Doxorubicin-Loaded Stimuli-Triggered Polymersomes. Biomacromolecules 2024; 25:4192-4202. [PMID: 38917475 PMCID: PMC11238342 DOI: 10.1021/acs.biomac.4c00282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2024]
Abstract
The permeability and responsiveness of polymer membranes are absolutely relevant in the design of polymersomes for cargo delivery. Accordingly, we herein correlate the structural features, permeability, and responsiveness of doxorubicin-loaded (DOX-loaded) nonresponsive and stimuli-responsive polymersomes with their in vitro and in vivo antitumor performance. Polymer vesicles were produced using amphiphilic block copolymers containing a hydrophilic poly[N-(2-hydroxypropyl)methacrylamide] (PHPMA) segment linked to poly[N-(4-isopropylphenylacetamide)ethyl methacrylate] (PPPhA, nonresponsive block), poly[4-(4,4,5,5-tetra-methyl-1,3,2-dioxaborolan-2-yl)benzyl methacrylate] [PbAPE, reactive oxygen species (ROS)-responsive block], or poly[2-(diisopropylamino)ethyl methacrylate] (PDPA, pH-responsive block). The PDPA-based polymersomes demonstrated outstanding biological performance with antitumor activity notably enhanced compared to their counterparts. We attribute this behavior to a fast-triggered DOX release in acidic tumor environments as induced by pH-responsive polymersome disassembly at pH < 6.8. Possibly, an insufficient ROS concentration in the selected tumor model attenuates the rate of ROS-responsive vesicle degradation, whereas the nonresponsive nature of the PPPhA block remarkably impacts the performance of such potential nanomedicines.
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Affiliation(s)
- Eliézer Jäger
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague 162 00, Czech Republic
| | - Peter Černoch
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague 162 00, Czech Republic
| | - Martina Vragovic
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague 162 00, Czech Republic
| | - Lindomar Jose Calumby Albuquerque
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague 162 00, Czech Republic
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo Andre 09280-560, Brazil
| | - Vladimir Sincari
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague 162 00, Czech Republic
| | - Tomáš Heizer
- Center for Advanced Preclinical Imaging (CAPI), First Faculty of Medicine, Charles University, Prague 120 00, Czech Republic
| | - Alessandro Jäger
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague 162 00, Czech Republic
| | - Jan Kučka
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague 162 00, Czech Republic
| | | | - Ewa Pavlova
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague 162 00, Czech Republic
| | - Luděk Šefc
- Center for Advanced Preclinical Imaging (CAPI), First Faculty of Medicine, Charles University, Prague 120 00, Czech Republic
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Hurst PJ, Yoon J, Singh R, Abouchaleh MF, Stewart KA, Sumerlin BS, Patterson JP. Hybrid Photoiniferter and Ring-Opening Polymerization Yields One-Pot Anisotropic Nanorods. Macromol Rapid Commun 2024; 45:e2400100. [PMID: 38520318 DOI: 10.1002/marc.202400100] [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: 02/16/2024] [Revised: 03/18/2024] [Indexed: 03/25/2024]
Abstract
Polymerization-induced self-assembly (PISA) has emerged as a scalable one-pot technique to prepare block copolymer (BCP) nanoparticles. Recently, a PISA process, that results in poly(l-lactide)-b-poly(ethylene glycol) BCP nanoparticles coined ring-opening polymerization (ROP)-induced crystallization-driven self-assembly (ROPI-CDSA), was developed. The resulting nanorods demonstrate a strong propensity for aggregation, resulting in the formation of 2D sheets and 3D networks. This article reports the synthesis of poly(N,N-dimethyl acrylamide)-b-poly(l)-lactide BCP nanoparticles by ROPI-CDSA, utilizing a two-step, one-pot approach. A dual-functionalized photoiniferter is first used for controlled radical polymerization of the acrylamido-based monomer, and the resulting polymer serves as a macroinitiator for organocatalyzed ROP to form the solvophobic polyester block. The resulting nanorods are highly stable and display anisotropy at higher molecular weights (>12k Da) and concentrations (>20% solids) than the previous report. This development expands the chemical scope of ROPI-CDSA BCPs and provides readily accessible nanorods made with biocompatible materials.
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Affiliation(s)
- Paul Joshua Hurst
- Department of Chemistry, University of California, Irvine, Irvine, CA, 92697, USA
| | - Junsik Yoon
- Department of Chemistry, University of California, Irvine, Irvine, CA, 92697, USA
| | - Riya Singh
- Department of Chemistry, University of California, Irvine, Irvine, CA, 92697, USA
| | | | - Kevin A Stewart
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science and Engineering, Department of Chemistry, University of Florida, Gainesville, FL, 32611, USA
| | - Brent S Sumerlin
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science and Engineering, Department of Chemistry, University of Florida, Gainesville, FL, 32611, USA
| | - Joseph P Patterson
- Department of Chemistry, University of California, Irvine, Irvine, CA, 92697, USA
- Department of Materials Science and Engineering, University of California, Irvine, Irvine, CA, 92697, USA
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4
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Xu Q, Wang Y, Zheng Y, Zhu Y, Li Z, Liu Y, Ding M. Polymersomes in Drug Delivery─From Experiment to Computational Modeling. Biomacromolecules 2024; 25:2114-2135. [PMID: 38011222 DOI: 10.1021/acs.biomac.3c00903] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Polymersomes, composed of amphiphilic block copolymers, are self-assembled vesicles that have gained attention as potential drug delivery systems due to their good biocompatibility, stability, and versatility. Various experimental techniques have been employed to characterize the self-assembly behaviors and properties of polymersomes. However, they have limitations in revealing molecular details and underlying mechanisms. Computational modeling techniques have emerged as powerful tools to complement experimental studies and enabled researchers to examine drug delivery mechanisms at molecular resolution. This review aims to provide a comprehensive overview of the state of the art in the field of polymersome-based drug delivery systems, with an emphasis on insights gained from both experimental and computational studies. Specifically, we focus on polymersome morphologies, self-assembly kinetics, fusion and fission, behaviors in flow, as well as drug encapsulation and release mechanisms. Furthermore, we also identify existing challenges and limitations in this rapidly evolving field and suggest possible directions for future research.
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Affiliation(s)
- Qianru Xu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Yiwei Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Yi Zheng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Yuling Zhu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Zifen Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Yang Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Mingming Ding
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
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Matson JB, Steele AQ, Mase JD, Schulz MD. Polymer Characterization by Size-Exclusion Chromatography with Multi-Angle Light Scattering (SEC-MALS): A Tutorial Review. Polym Chem 2024; 15:127-142. [PMID: 39070757 PMCID: PMC11281244 DOI: 10.1039/d3py01181j] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
This tutorial review presents the theory and application of SEC-MALS with minimal equations and a focus on synthetic polymer characterization, serving as an entry point for polymer scientists who want to learn more about SEC-MALS. We discuss the principles of static light scattering, outline its capability to generate absolute weight-average molar mass values, and extend its application to SEC-MALS. Practical elements are emphasized, enabling researchers to appreciate how values forM n , M w , and Đ are determined in an SEC-MALS experiment and how experimental conditions and input values, such as the specific refractive index increment ( d n / d c ), influence the results. Several illustrative SEC-MALS experiments demonstrate the impact of separation quality onM n (as opposed toM w ), the appearance of contaminants in SEC chromatograms from sample preparation, the influence of concentration on data quality, and how polymer topology affects molecular weight characterization in SEC. Finally, we address practical considerations, common issues, and persistent misconceptions.
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Affiliation(s)
- John B Matson
- Virginia Tech, Department of Chemistry and Macromolecules Innovation Institute
| | - Anna Q Steele
- Virginia Tech, Department of Chemistry and Macromolecules Innovation Institute
| | - Jonathan D Mase
- Virginia Tech, Department of Chemistry and Macromolecules Innovation Institute
| | - Mirchael D Schulz
- Virginia Tech, Department of Chemistry and Macromolecules Innovation Institute
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Lim J, Matsuoka H, Kinoshita Y, Yusa SI, Saruwatari Y. The Effect of Block Ratio and Structure on the Thermosensitivity of Double and Triple Betaine Block Copolymers. Molecules 2024; 29:390. [PMID: 38257304 PMCID: PMC10820771 DOI: 10.3390/molecules29020390] [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: 10/01/2023] [Revised: 12/29/2023] [Accepted: 01/05/2024] [Indexed: 01/24/2024] Open
Abstract
AB-type and BAB-type betaine block copolymers composed of a carboxybetaine methacrylate and a sulfobetaine methacrylate, PGLBT-b-PSPE and PSPE-b-PGLBT-b-PSPE, respectively, were synthesized by one-pot RAFT polymerization. By optimizing the concentration of the monomer, initiator, and chain transfer agent, block extension with precise ratio control was enabled and a full conversion (~99%) of betaine monomers was achieved at each step. Two sets (total degree of polymerization: ~300 and ~600) of diblock copolymers having four different PGLBT:PSPE ratios were prepared to compare the influence of block ratio and molecular weight on the temperature-responsive behavior in aqueous solution. A turbidimetry and dynamic light scattering study revealed a shift to higher temperatures of the cloud point and micelle formation by increasing the ratio of PSPE, which exhibit upper critical solution temperature (UCST) behavior. PSPE-dominant diblocks created spherical micelles stabilized by PGLBT motifs, and the transition behavior diminished by decreasing the PSPE ratio. No particular change was found in the diblocks that had an identical AB ratio. This trend reappeared in the other set whose entire molecular weight approximately doubled, and each transition point was not recognizably impacted by the total molecular weight. For triblocks, the PSPE double ends provided a higher probability of interchain attractions and resulted in a more turbid solution at higher temperatures, compared to the diblocks which had similar block ratios and molecular weights. The intermediates assumed as network-like soft aggregates eventually rearranged to monodisperse flowerlike micelles. It is expected that the method for obtaining well-defined betaine block copolymers, as well as the relationship of the block ratio and the chain conformation to the temperature-responsive behavior, will be helpful for designing betaine-based polymeric applications.
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Affiliation(s)
- Jongmin Lim
- Department of Polymer Chemistry, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan;
| | - Hideki Matsuoka
- Department of Polymer Chemistry, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan;
| | - Yusuke Kinoshita
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji 671-2280, Hyogo, Japan; (Y.K.); (S.-i.Y.)
| | - Shin-ichi Yusa
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji 671-2280, Hyogo, Japan; (Y.K.); (S.-i.Y.)
| | - Yoshiyuki Saruwatari
- Osaka Organic Chemical Industry Ltd., 7-20 Azuchi-machi, 1chome, Chuo-ku, Osaka 541-0052, Japan;
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7
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Korpanty J, Gianneschi NC. Exploration of Organic Nanomaterials with Liquid-Phase Transmission Electron Microscopy. Acc Chem Res 2023; 56:2298-2312. [PMID: 37580021 DOI: 10.1021/acs.accounts.3c00211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
ConspectusOrganic, soft materials with solution-phase nanoscale structures, such as emulsions, hydrogels, and thermally responsive materials, are inherently difficult to directly image via dry state and cryogenic-transmission electron microscopy (TEM). Therefore, we lack a routine microscopy method with sufficient resolution that can, in tandem with scattering techniques, probe the morphology and dynamics of these and many related systems. These challenges motivate liquid cell (LC) TEM method development, aimed at making the technique generally available and routine. To date, the field has been and continues to be dominantly focused on analyzing solution-phase inorganic materials. These mostly metallic nanoparticles have been studied at electron fluxes that can allow for high-resolution imaging, in the range of hundreds to thousands of e- Å-2 s-1. Despite excellent contrast, in these cases, one often contends with knock-on damage, direct radiolysis, and sensitization of the solvent by virtue of enhanced secondary electron production by the impinging electron beam. With an interest in soft materials, we face both related and distinct challenges, especially in achieving a high-enough contrast within solvated liquid cells. Additionally, we must be aware of artifacts associated with high-flux imaging conditions in terms of direct radiolysis of the solvent and the sensitive materials themselves. Regardless, with care, it has become possible to gain real insight into both static and dynamic organic nanomaterials in solution. This is due, in large part, to key advances that have been made, including improved sample preparation protocols, image capture technologies, and image analysis, which have allowed LCTEM to have utility. To enable solvated soft matter characterization by LCTEM, a generalizable multimodal workflow was developed by leveraging both experimental and theoretical precedents from across the LCTEM field and adjacent works concerned with solution radiolysis and nanoparticle tracking analyses. This workflow consists of (1) modeling electron beam-solvent interactions, (2) studying electron beam-sample interactions via LCTEM coupled with post-mortem analysis, (3) the construction of "damage plots" displaying sample integrity under varied imaging and sample conditions, (4) optimized LCTEM imaging, (5) image processing, and (6) correlative analysis via X-ray or light scattering. In this Account, we present this outlook and the challenges we continue to overcome in the direct imaging of dynamic solvated nanoscale soft materials.
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Affiliation(s)
- Joanna Korpanty
- Department of Chemistry, International Institute for Nanotechnology, Chemistry of Life Processes Institute, Simpson Querrey Institute, Lurie Cancer Center, Northwestern University, Evanston, Illinois 60208, United States
| | - Nathan C Gianneschi
- Department of Chemistry, International Institute for Nanotechnology, Chemistry of Life Processes Institute, Simpson Querrey Institute, Lurie Cancer Center, Northwestern University, Evanston, Illinois 60208, United States
- Department of Materials Science & Engineering, Department of Biomedical Engineering and Department of Pharmacology, Northwestern University, Evanston, Illinois 60208, United States
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Korpanty J, Wang C, Gianneschi NC. Upper critical solution temperature polymer assemblies via variable temperature liquid phase transmission electron microscopy and liquid resonant soft X-ray scattering. Nat Commun 2023; 14:3441. [PMID: 37301949 DOI: 10.1038/s41467-023-38781-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Accepted: 05/15/2023] [Indexed: 06/12/2023] Open
Abstract
Here, we study the upper critical solution temperature triggered phase transition of thermally responsive poly(ethylene glycol)-block-poly(ethylene glycol) methyl ether acrylate-co-poly(ethylene glycol) phenyl ether acrylate-block-polystyrene nanoassemblies in isopropanol. To gain mechanistic insight into the organic solution-phase dynamics of the upper critical solution temperature polymer, we leverage variable temperature liquid-cell transmission electron microscopy correlated with variable temperature liquid resonant soft X-ray scattering. Heating above the upper critical solution temperature triggers a reduction in particle size and a morphological transition from a spherical core shell particle with a complex, multiphase core to a micelle with a uniform core and Gaussian polymer chains attached to the surface. These correlated solution phase methods, coupled with mass spectral validation and modeling, provide unique insight into these thermoresponsive materials. Moreover, we detail a generalizable workflow for studying complex, solution-phase nanomaterials via correlative methods.
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Affiliation(s)
- Joanna Korpanty
- Department of Chemistry, International Institute for Nanotechnology, Chemistry of Life Processes Institute, Simpson Querrey Institute, Northwestern University, Evanston, IL, 60208, USA
| | - Cheng Wang
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA
| | - Nathan C Gianneschi
- Department of Chemistry, International Institute for Nanotechnology, Chemistry of Life Processes Institute, Simpson Querrey Institute, Northwestern University, Evanston, IL, 60208, USA.
- Department of Materials Science & Engineering, Northwestern University, Evanston, IL, 60208, USA.
- Department of Biomedical Engineering and Department of Pharmacology, Northwestern University, Evanston, IL, 60208, USA.
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Tian J, Xie SH, Borucu U, Lei S, Zhang Y, Manners I. High-resolution cryo-electron microscopy structure of block copolymer nanofibres with a crystalline core. NATURE MATERIALS 2023:10.1038/s41563-023-01559-4. [PMID: 37217702 DOI: 10.1038/s41563-023-01559-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 04/18/2023] [Indexed: 05/24/2023]
Abstract
Seeded growth of crystallizable block copolymers and π-stacking molecular amphiphiles in solution using living crystallization-driven self-assembly is an emerging route to fabricate uniform one-dimensional and two-dimensional core-shell micellar nanoparticles of controlled size with a range of potential applications. Although experimental evidence indicates that the crystalline core of these nanomaterials is highly ordered, a direct observation of their crystal lattice has not been successful. Here we report the high-resolution cryo-transmission electron microscopy studies of vitrified solutions of nanofibres made from a crystalline core of poly(ferrocenyldimethylsilane) (PFS) and a corona of polysiloxane grafted with 4-vinylpyridine groups. These studies show that poly(ferrocenyldimethylsilane) chains pack in an 8-nm-diameter core lattice with two-dimensional pseudo-hexagonal symmetry that is coated by a 27 nm 4-vinylpyridine corona with a 3.5 nm distance between each 4-vinylpyridine strand. We combine this structural information with a molecular modelling analysis to propose a detailed molecular model for solvated poly(ferrocenyldimethylsilane)-b-4-vinylpyridine nanofibres.
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Affiliation(s)
- Jia Tian
- Department of Chemistry, University of Victoria, Victoria, British Columbia, Canada
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Song-Hai Xie
- Department of Chemistry, Fudan University, Shanghai, China
| | - Ufuk Borucu
- GW4 Facility for High-Resolution Electron Cryo-Microscopy, University of Bristol, Bristol, UK
| | - Shixing Lei
- Department of Chemistry, University of Victoria, Victoria, British Columbia, Canada
| | - Yifan Zhang
- Department of Chemistry, University of Victoria, Victoria, British Columbia, Canada
| | - Ian Manners
- Department of Chemistry, University of Victoria, Victoria, British Columbia, Canada.
- Centre for Advanced Materials and Related Technology (CAMTEC), University of Victoria, Victoria, British Columbia, Canada.
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Fielden SDP, Derry MJ, Miller AJ, Topham PD, O'Reilly RK. Triggered Polymersome Fusion. J Am Chem Soc 2023; 145:5824-5833. [PMID: 36877655 PMCID: PMC10021019 DOI: 10.1021/jacs.2c13049] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
The contents of biological cells are retained within compartments formed of phospholipid membranes. The movement of material within and between cells is often mediated by the fusion of phospholipid membranes, which allows mixing of contents or excretion of material into the surrounding environment. Biological membrane fusion is a highly regulated process that is catalyzed by proteins and often triggered by cellular signaling. In contrast, the controlled fusion of polymer-based membranes is largely unexplored, despite the potential application of this process in nanomedicine, smart materials, and reagent trafficking. Here, we demonstrate triggered polymersome fusion. Out-of-equilibrium polymersomes were formed by ring-opening metathesis polymerization-induced self-assembly and persist until a specific chemical signal (pH change) triggers their fusion. Characterization of polymersomes was performed by a variety of techniques, including dynamic light scattering, dry-state/cryogenic-transmission electron microscopy, and small-angle X-ray scattering (SAXS). The fusion process was followed by time-resolved SAXS analysis. Developing elementary methods of communication between polymersomes, such as fusion, will prove essential for emulating life-like behaviors in synthetic nanotechnology.
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Affiliation(s)
- Stephen D P Fielden
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Matthew J Derry
- Aston Advanced Materials Research Centre, Aston University, Birmingham B4 7ET, UK
| | - Alisha J Miller
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Paul D Topham
- Aston Advanced Materials Research Centre, Aston University, Birmingham B4 7ET, UK
| | - Rachel K O'Reilly
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
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11
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Diaz-Baca JA, Fatehi P. Temperature responsive crosslinked starch-kraft lignin macromolecule. Carbohydr Polym 2023; 313:120846. [PMID: 37182932 DOI: 10.1016/j.carbpol.2023.120846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 03/15/2023] [Accepted: 03/21/2023] [Indexed: 03/30/2023]
Abstract
Starch is a natural polymer with a relatively simple structure and limited solubility in water. Kraft lignin (KL) is a complex biopolymer obtained as a by-product from the delignification of wood and grasses. The present work reports developing a temperature-responsive high molecular weight macromolecule from crosslinking KL and starch (KLS). The NMR and XPS analyses quantified the changes in the aromatic and anhydroglucose units of KL and starch, observing a higher content of C-O-C bonds, which confirms the presence of glycerol ether cross-linkages between starch and KL in KLS. The rheological analysis of KLS dispersions revealed the formation of a thermo-responsive structured network. The temperature-dependent water solubility and rheological characteristics of KLS were related to the presence of hydrophilic starch chains, crosslinking degree, and physicochemical characteristics of KL. The incorporation of KL and ether crosslinks increased the thermal stability of KLS. Because of its multiple functional groups and large molecular weight (3.6-4.2 × 105 g/mol) that was arranged in an extended globular shape, KLS-5 formed a gel-like structure after a heating-cooling treatment. Overall, the results confirmed that incorporating lignin in starch would fabricate sustainable materials with potentially altered applications, such as temperature-responsive hydrogels and films.
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12
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Eivgi O, Ravenscroft AC, Blum SA. Imaging Block-Selective Copolymer Solvation. J Am Chem Soc 2023; 145:2058-2063. [PMID: 36689735 DOI: 10.1021/jacs.2c12576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Understanding individual-block solvation in self-assembled block copolymer systems is experimentally difficult, but this solvation underpins the assembly and disassembly observed at the bulk scale. Here, covalently attached viscosity-sensitive molecular rotors for fluorescence lifetime imaging microscopy uncover and quantitatively elucidate previously undisclosed differential block-selective responses toward solvation changes upon addition of DMSO and THF to self-assembled ROMP-based amphiphilic block copolymers. The sensitivity of this method provides unique information on block-selective solvent-triggered assembly and disassembly mechanisms, revealing behaviors invisible to or with superior sensitivity to traditional 1H NMR spectroscopy. These experiments demonstrate an analytical method and provide a granular mechanistic understanding, both suitable for fine tuning block copolymer assembly and disassembly processes.
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Affiliation(s)
- Or Eivgi
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, United States
| | - Alexis C Ravenscroft
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, United States
| | - Suzanne A Blum
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, United States
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13
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Courtine C, Hamouda I, Pearson S, Billon L, Lavedan P, Ladeira S, Micheau JC, Pimienta V, Nicol E, Lauth de Viguerie N, Mingotaud AF. Photoswitchable assembly of long-lived azobenzenes in water using visible light. J Colloid Interface Sci 2023; 629:670-684. [DOI: 10.1016/j.jcis.2022.08.191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/30/2022] [Accepted: 08/31/2022] [Indexed: 11/28/2022]
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14
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Belkhir K, Cerlati O, Heaugwane D, Tosi A, Benkhaled BT, Brient PL, Chatard C, Graillot A, Catrouillet S, Balor S, Goudounèche D, Payré B, Laborie P, Lim JH, Putaux JL, Vicendo P, Gibot L, Lonetti B, Mingotaud AF, Lapinte V. Synthesis and Self-Assembly of UV-Cross-Linkable Amphiphilic Polyoxazoline Block Copolymers: Importance of Multitechnique Characterization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:16144-16155. [PMID: 36516233 DOI: 10.1021/acs.langmuir.2c02896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
In the nanomedicine field, there is a need to widen the availability of nanovectors to compensate for the increasingly reported side effects of poly(ethene glycol). Nanovectors enabling cross-linking can further optimize drug delivery. Cross-linkable polyoxazolines are therefore relevant candidates to address these two points. Here we present the synthesis of coumarin-functionalized poly(2-alkyl-2-oxazoline) block copolymers, namely, poly(2-methyl-2-oxazoline)-block-poly(2-phenyl-2-oxazoline) and poly(2-methyl-2-oxazoline)-block-poly(2-butyl-2-oxazoline). The hydrophilic ratio and molecular weights were varied in order to obtain a range of possible behaviors. Their self-assembly after nanoprecipitation or film rehydration was examined. The resulting nano-objects were fully characterized by transmission electron microscopy (TEM), cryo-TEM, multiple-angle dynamic and static light scattering. In most cases, the formation of polymer micelles was observed, as well as, in some cases, aggregates, which made characterization more difficult. Cross-linking was performed under UV illumination in the presence of a coumarin-bearing cross-linker based on polymethacrylate derivatives. Addition of the photo-cross-linker and cross-linking resulted in better-defined objects with improved stability in most cases.
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Affiliation(s)
- Kedafi Belkhir
- ICGM, Université de Montpellier, CNRS, ENSCM, 34090Montpellier, France
| | - Orélia Cerlati
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 Route de Narbonne, 31062Toulouse cedex 9, France
| | - Diana Heaugwane
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 Route de Narbonne, 31062Toulouse cedex 9, France
| | - Alice Tosi
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 Route de Narbonne, 31062Toulouse cedex 9, France
| | | | | | - Camille Chatard
- Specific Polymers, 150 Avenue des Cocardières, 34160Castries, France
| | - Alain Graillot
- Specific Polymers, 150 Avenue des Cocardières, 34160Castries, France
| | - Sylvain Catrouillet
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 Route de Narbonne, 31062Toulouse cedex 9, France
| | - Stéphanie Balor
- METi Platform, Université Paul Sabatier, 118 Route de Narbonne, 31062Toulouse cedex, France
| | - Dominique Goudounèche
- CMEAB Université Toulouse III - Paul Sabatier, 133 Route de Narbonne, 31062Toulouse cedex, France
| | - Bruno Payré
- CMEAB Université Toulouse III - Paul Sabatier, 133 Route de Narbonne, 31062Toulouse cedex, France
| | - Pascale Laborie
- Technopolym, Institut de Chimie de Toulouse ICT-UAR 2599, Université Toulouse 3 - Paul Sabatier, 118 Route de Narbonne, 31062Toulouse cedex 9, France
| | - Jia-Hui Lim
- Université Grenoble Alpes, CNRS, CERMAV, F-38000Grenoble, France
| | - Jean-Luc Putaux
- Université Grenoble Alpes, CNRS, CERMAV, F-38000Grenoble, France
| | - Patricia Vicendo
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 Route de Narbonne, 31062Toulouse cedex 9, France
| | - Laure Gibot
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 Route de Narbonne, 31062Toulouse cedex 9, France
| | - Barbara Lonetti
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 Route de Narbonne, 31062Toulouse cedex 9, France
| | - Anne-Françoise Mingotaud
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 Route de Narbonne, 31062Toulouse cedex 9, France
| | - Vincent Lapinte
- ICGM, Université de Montpellier, CNRS, ENSCM, 34090Montpellier, France
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15
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Ultrasonic Film Rehydration Synthesis of Mixed Polylactide Micelles for Enzyme-Resistant Drug Delivery Nanovehicles. Polymers (Basel) 2022; 14:polym14194013. [PMID: 36235958 PMCID: PMC9571646 DOI: 10.3390/polym14194013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 09/15/2022] [Accepted: 09/20/2022] [Indexed: 11/19/2022] Open
Abstract
A facile technique for the preparation of mixed polylactide micelles from amorphous poly-D,L-lactide-block-polyethyleneglycol and crystalline amino-terminated poly-L-lactide is described. In comparison to the classical routine solvent substitution method, the ultrasonication assisted formation of polymer micelles allows shortening of the preparation time from several days to 15–20 min. The structure and morphology of mixed micelles were analyzed with the assistance of electron microscopy, dynamic and static light scattering and differential scanning calorimetery. The resulting polymer micelles have a hydrodynamic radius of about 150 nm and a narrow size distribution. The average molecular weight of micelles was found to be 2.1 × 107 and the aggregation number was calculated to be 6000. The obtained biocompatible particles were shown to possess low cytotoxicity, high colloid stability and high stability towards enzymatic hydrolysis. The possible application of mixed polylactide micelles as drug delivery vehicles was studied for the antitumor hydrophobic drug paclitaxel. The lethal concentration (LC50) of paclitaxel encapsulated in polylactide micelles was found to be 42 ± 4 µg/mL—a value equal to the LC50 of paclitaxel in the commercial drug Paclitaxel-Teva.
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16
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Blackman LD, Sutherland TD, De Barro PJ, Thissen H, Locock KES. Addressing a future pandemic: how can non-biological complex drugs prepare us for antimicrobial resistance threats? MATERIALS HORIZONS 2022; 9:2076-2096. [PMID: 35703580 DOI: 10.1039/d2mh00254j] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Loss of effective antibiotics through antimicrobial resistance (AMR) is one of the greatest threats to human health. By 2050, the annual death rate resulting from AMR infections is predicted to have climbed from 1.27 million per annum in 2019, up to 10 million per annum. It is therefore imperative to preserve the effectiveness of both existing and future antibiotics, such that they continue to save lives. One way to conserve the use of existing antibiotics and build further contingency against resistant strains is to develop alternatives. Non-biological complex drugs (NBCDs) are an emerging class of therapeutics that show multi-mechanistic antimicrobial activity and hold great promise as next generation antimicrobial agents. We critically outline the focal advancements for each key material class, including antimicrobial polymer materials, carbon nanomaterials, and inorganic nanomaterials, and highlight the potential for the development of antimicrobial resistance against each class. Finally, we outline remaining challenges for their clinical translation, including the need for specific regulatory pathways to be established in order to allow for more efficient clinical approval and adoption of these new technologies.
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Affiliation(s)
- Lewis D Blackman
- CSIRO Manufacturing, Research Way, Clayton, VIC 3168, Australia.
| | - Tara D Sutherland
- CSIRO Health & Biosecurity, Clunies Ross Street, Black Mountain, ACT 2601, Australia
| | - Paul J De Barro
- CSIRO Health & Biosecurity, Boggo Road, Dutton Park, QLD 4102, Australia
| | - Helmut Thissen
- CSIRO Manufacturing, Research Way, Clayton, VIC 3168, Australia.
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17
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Eivgi O, Blum SA. Real-Time Polymer Viscosity-Catalytic Activity Relationships on the Microscale. J Am Chem Soc 2022; 144:13574-13585. [PMID: 35866383 DOI: 10.1021/jacs.2c03711] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Polymer growth induces physical changes to catalyst microenvironments. Here, these physical changes are quantified in real time and are found to influence microscale chemical catalysis and the polymerization rate. By developing a method to "peer into" optically transparent living-polymer particles, simultaneous imaging of both viscosity changes and chemical activity was achieved for the first time with high spatiotemporal resolution through a combination of fluorescence intensity microscopy and fluorescence lifetime imaging microscopy techniques. Specifically, an increase in microenvironment viscosity led to a corresponding local decrease in the catalytic molecular ruthenium ring-opening metathesis polymerization rate, plausibly by restricting diffusional access to active catalytic centers. Consistent with this diffusional-access model, these viscosity changes were found to be monomer-dependent, showing larger changes in microenvironment viscosity in cross-linked polydicyclopentadiene compared to non-crosslinked polynorbornene. The sensitivity and high spatial resolution of the imaging technique revealed significant variations in microviscosities between different particles and subparticle regions. These revealed spatial heterogeneities would not be observable through alternative ensemble analytical techniques that provide sample-averaged measurements. The observed spatial heterogeneities provide a physical mechanism for variation in catalytic chemical activity on the microscale that may accumulate and lead to nonhomogeneous polymer properties on the bulk scale.
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Affiliation(s)
- Or Eivgi
- Department of Chemistry, University of California, Irvine, Irvine California 92697-2025, United States
| | - Suzanne A Blum
- Department of Chemistry, University of California, Irvine, Irvine California 92697-2025, United States
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18
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Hossain MS, Zhang Z, Ashok S, Jenks AR, Lynch CJ, Hougland JL, Mozhdehi D. Temperature-Responsive Nano-Biomaterials from Genetically Encoded Farnesylated Disordered Proteins. ACS APPLIED BIO MATERIALS 2022; 5:1846-1856. [PMID: 35044146 PMCID: PMC9115796 DOI: 10.1021/acsabm.1c01162] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Accepted: 01/06/2022] [Indexed: 11/30/2022]
Abstract
Despite broad interest in understanding the biological implications of protein farnesylation in regulating different facets of cell biology, the use of this post-translational modification to develop protein-based materials and therapies remains underexplored. The progress has been slow due to the lack of accessible methodologies to generate farnesylated proteins with broad physicochemical diversities rapidly. This limitation, in turn, has hindered the empirical elucidation of farnesylated proteins' sequence-structure-function rules. To address this gap, we genetically engineered prokaryotes to develop operationally simple, high-yield biosynthetic routes to produce farnesylated proteins and revealed determinants of their emergent material properties (nano-aggregation and phase-behavior) using scattering, calorimetry, and microscopy. These outcomes foster the development of farnesylated proteins as recombinant therapeutics or biomaterials with molecularly programmable assembly.
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Affiliation(s)
- Md. Shahadat Hossain
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
| | - Zhe Zhang
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
| | - Sudhat Ashok
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
| | - Ashley R. Jenks
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
| | - Christopher J. Lynch
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
| | - James L. Hougland
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
- Department
of Biology, Syracuse University, Syracuse, New York 13244, United States
- BioInspired
Syracuse: Institute for Material and Living Systems, Syracuse University, Syracuse, New York 13244, United States
| | - Davoud Mozhdehi
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
- Department
of Biology, Syracuse University, Syracuse, New York 13244, United States
- Department
of Biomedical and Chemical Engineering, Syracuse University, Syracuse, New York 13244, United States
- BioInspired
Syracuse: Institute for Material and Living Systems, Syracuse University, Syracuse, New York 13244, United States
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19
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de Oliveira FA, Albuquerque LJC, Castro CE, Riske KA, Bellettini IC, Giacomelli FC. Reduced cytotoxicity of nanomaterials driven by nano-bio interactions: Case study of single protein coronas enveloping polymersomes. Colloids Surf B Biointerfaces 2022; 213:112387. [PMID: 35151044 DOI: 10.1016/j.colsurfb.2022.112387] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 01/28/2022] [Accepted: 01/30/2022] [Indexed: 11/12/2022]
Abstract
The protein adsorption onto poly(acrylic acid)-block-polystyrene (PAA22-b-PS144) polymersomes has been investigated with regard to structural features, thermodynamic aspects and biological consequences. The light scattering measurements revealed the formation of protein coronas enveloping the polymeric capsules regardless of the chemical nature of the biomacromolecules. The experiments were conducted by using lysozyme, immunoglobulin G - IgG and bovine serum albumin - BSA as model proteins due to their differences concerning size and residual surface charge at physiological pH. The protein adsorption was further confirmed by isothermal titration calorimetry, and the experimental data suggest that the phenomenon is mainly governed by hydrogen bonding and van der Waals interactions. The pre-existing protein layer via the pre-incubation in protein environments notably attenuates the cytotoxicity of the nanomaterial compared to the pristine counterparts. This approach can possibly be extended to different types of assemblies when intermolecular interactions are able to induce protein adsorption and the development of protein coronas around nanoparticles. Such fairly simple method may be convenient to engineer safer nanomaterials towards a variety of biomedical applications when the nanotoxicity is an issue. Additionally, the strategy can possibly be used to tailor the surface properties of nanoparticles by adsorbing specific proteins for targeting purposes.
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Affiliation(s)
| | | | - Carlos E Castro
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil
| | - Karin A Riske
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Ismael C Bellettini
- Departamento de Ciências Exatas e Educação, Universidade Federal de Santa Catarina, Blumenau, Brazil
| | - Fernando C Giacomelli
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil.
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20
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Xu Z, Shan G, Hao N, Li L, Lan T, Dong Y, Wen J, Tian R, Zhang Y, Jiang L, Sui X. Structure remodeling of soy protein-derived amyloid fibrils mediated by epigallocatechin-3-gallate. Biomaterials 2022; 283:121455. [DOI: 10.1016/j.biomaterials.2022.121455] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 02/18/2022] [Accepted: 03/03/2022] [Indexed: 12/18/2022]
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21
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Hamta A, Ashtiani FZ, Karimi M, Moayedfard S. Asymmetric block copolymer membrane fabrication mechanism through self-assembly and non-solvent induced phase separation (SNIPS) process. Sci Rep 2022; 12:771. [PMID: 35031674 PMCID: PMC8760277 DOI: 10.1038/s41598-021-04759-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 12/30/2021] [Indexed: 01/08/2023] Open
Abstract
In this paper, the concept of the functional mechanism of copolymer membrane formation is explained and analyzed from the theoretical and experimental points of view. To understand the phase inversion process and control the final membrane morphology, styrene-acrylonitrile copolymer (SAN) membrane morphology through the self-assembly phenomena is investigated. Since the analysis of the membrane morphology requires the study of both thermodynamic and kinetic parameters, the effect of different membrane formation conditions is investigated experimentally; In order to perceive the formation mechanism of the extraordinary structure membrane, a thermodynamic hypothesis is also developed based on the hydrophilic coil migration to the membrane surface. This hypothesis is analyzed according to Hansen Solubility Parameters and proved using EDX, SAXS, and contact angle analysis of SAN25. Moreover, the SAN30 membrane is fabricated under different operating conditions to evaluate the possibility of morphological prediction based on the developed hypothesis.
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Affiliation(s)
- Afshin Hamta
- Department of Chemical Engineering, Amirkabir University of Technology, No. 424, Hafez Ave, Tehran, Iran
| | - Farzin Zokaee Ashtiani
- Department of Chemical Engineering, Amirkabir University of Technology, No. 424, Hafez Ave, Tehran, Iran.
| | - Mohammad Karimi
- Department of Textile Engineering, Amirkabir University of Technology, No. 424, Hafez Ave, Tehran, Iran
| | - Sareh Moayedfard
- Department of Chemical Engineering, Amirkabir University of Technology, No. 424, Hafez Ave, Tehran, Iran
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22
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Kim D, Honda H, Matsuoka H, Yusa SI, Saruwatari Y. Morphology transition of polyion complex (PIC) micelles with carboxybetaine as a shell induced at different block ratios and their pH-responsivity. Colloid Polym Sci 2022. [DOI: 10.1007/s00396-021-04921-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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23
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Arsenie LV, Semsarilar M, Brendel JC, Lacroix-Desmazes P, Ladmiral V, Catrouillet S. Supramolecular co-assembly of water-soluble nucleobase-containing copolymers: bioinspired synthetic platforms towards new biomimetic materials. Polym Chem 2022. [DOI: 10.1039/d2py00872f] [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
This study presents the development of new co-assembled copolymers architectures at physiological pH (pH=7.4) formed via H-bonds between complementary nucleobase-containing copolymers. Well-defined hydrophilic copolymers were synthesised by RAFT polymerisation: statistical...
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24
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Yang T, Liu D, Zhou P. Temperature-dependent dissociation of human micellar β-casein: Implications of its phosphorylation degrees and casein micelle structures. Food Chem 2021; 376:131935. [PMID: 34968916 DOI: 10.1016/j.foodchem.2021.131935] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 12/04/2021] [Accepted: 12/20/2021] [Indexed: 01/14/2023]
Abstract
Temperature-dependent dissociation of human micellar β-casein regarding its phosphorylation degrees and micelle structures were studied. Human milk was fractionated at 25 °C into soluble (S-25 °C) and micellar (M-25 °C) fractions, and the latter was fractionated at 4 °C into soluble (S-4 °C) and micellar (M-4 °C) fractions. β-casein ratios among S-25 °C, S-4 °C and M-4 °C were 19%, 59% and 22%. β-casein isoforms were predominated by 0-P, 1-P and 2-P in S-25 °C, by 0-P, 1-P, 2-P and 4-P in S-4 °C, and by 0-P in M-4 °C. For micelles remained after dissociation of β-casein and calcium, the size increased, molar mass decreased, morphologies were maintained, and internal protein inhomogeneities disappeared, compared with micelles in M-25 °C. β-casein isoforms with lower phosphorylation degrees may form a frame mainly through hydrophobic interactions, attached with more highly phosphorylated isoforms and colloidal calcium phosphate via calcium bridges for forming human micelle.
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Affiliation(s)
- Tingting Yang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China
| | - Dasong Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China.
| | - Peng Zhou
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China.
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25
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Geng W, Ye Z, Zheng Z, Gao J, Li J, Shah MR, Xiao L, Guo D. Supramolecular Bioimaging through Signal Amplification by Combining Indicator Displacement Assay with Förster Resonance Energy Transfer. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Wen‐Chao Geng
- College of Chemistry Key Laboratory of Functional Polymer Materials (Ministry of Education) State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 3 00071 China
| | - Zhongju Ye
- State Key Laboratory of Medicinal Chemical Biology Tianjin Key Laboratory of Biosensing and Molecular Recognition College of Chemistry Nankai University Tianjin 300071 China
| | - Zhe Zheng
- College of Chemistry Key Laboratory of Functional Polymer Materials (Ministry of Education) State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 3 00071 China
| | - Jie Gao
- College of Chemistry Key Laboratory of Functional Polymer Materials (Ministry of Education) State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 3 00071 China
| | - Juan‐Juan Li
- College of Chemistry Key Laboratory of Functional Polymer Materials (Ministry of Education) State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 3 00071 China
| | - Muhammad Raza Shah
- H.E.J. Research Institute of Chemistry International Center for Chemical and Biological Sciences Karachi University Karachi 74200 Pakistan
| | - Lehui Xiao
- State Key Laboratory of Medicinal Chemical Biology Tianjin Key Laboratory of Biosensing and Molecular Recognition College of Chemistry Nankai University Tianjin 300071 China
| | - Dong‐Sheng Guo
- College of Chemistry Key Laboratory of Functional Polymer Materials (Ministry of Education) State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 3 00071 China
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26
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Affiliation(s)
- Ping Wei
- Department of Orthopedics, Shanghai Tenth People’s Hospital, Tongji University, 301 Middle Yanchang Road, Shanghai 200072, China
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Erik Jan Cornel
- Department of Orthopedics, Shanghai Tenth People’s Hospital, Tongji University, 301 Middle Yanchang Road, Shanghai 200072, China
| | - Jianzhong Du
- Department of Orthopedics, Shanghai Tenth People’s Hospital, Tongji University, 301 Middle Yanchang Road, Shanghai 200072, China
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
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27
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Vrbata D, Kereiche S, Kalíková K, Uchman M. Stimuli-responsive multifunctional micelles of ABC vs. ACB triblock terpolymers using reversible covalent bonding of phenylboronic acid: controlled synthesis, self-assembly and model drug release. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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28
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Rizvi A, Mulvey JT, Carpenter BP, Talosig R, Patterson JP. A Close Look at Molecular Self-Assembly with the Transmission Electron Microscope. Chem Rev 2021; 121:14232-14280. [PMID: 34329552 DOI: 10.1021/acs.chemrev.1c00189] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Molecular self-assembly is pervasive in the formation of living and synthetic materials. Knowledge gained from research into the principles of molecular self-assembly drives innovation in the biological, chemical, and materials sciences. Self-assembly processes span a wide range of temporal and spatial domains and are often unintuitive and complex. Studying such complex processes requires an arsenal of analytical and computational tools. Within this arsenal, the transmission electron microscope stands out for its unique ability to visualize and quantify self-assembly structures and processes. This review describes the contribution that the transmission electron microscope has made to the field of molecular self-assembly. An emphasis is placed on which TEM methods are applicable to different structures and processes and how TEM can be used in combination with other experimental or computational methods. Finally, we provide an outlook on the current challenges to, and opportunities for, increasing the impact that the transmission electron microscope can have on molecular self-assembly.
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Affiliation(s)
- Aoon Rizvi
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, United States
| | - Justin T Mulvey
- Department of Materials Science and Engineering, University of California, Irvine, Irvine, California 92697-2025, United States
| | - Brooke P Carpenter
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, United States
| | - Rain Talosig
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, United States
| | - Joseph P Patterson
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, United States
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29
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Geng WC, Ye Z, Zheng Z, Gao J, Li JJ, Shah MR, Xiao L, Guo DS. Supramolecular Bioimaging through Signal Amplification by Combining Indicator Displacement Assay with Förster Resonance Energy Transfer. Angew Chem Int Ed Engl 2021; 60:19614-19619. [PMID: 34263514 DOI: 10.1002/anie.202104358] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 07/10/2021] [Indexed: 11/06/2022]
Abstract
Fluorescent chemosensors are powerful imaging tools in the fields of life sciences and engineering. Based on the principle of supramolecular chemistry, indicator displacement assay (IDA) provides an alternative approach for constructing and optimizing chemosensors, which has the advantages of simplicity, tunability, and modularity. However, the application of IDA in bioimaging continues to face a series of challenges, including interfering signals, background noise, and inconsistent spatial location. Accordingly, we herein report a supramolecular bioimaging strategy of Förster resonance energy transfer (FRET)-assisted IDA by employing macrocyclic amphiphiles as the operating platform. By merging FRET with IDA, the limitations of IDA in bioimaging were addressed. As a proof of concept, the study achieved mitochondria-targeted imaging of adenosine triphosphate in live cells with signal amplification. This study opens a non-covalent avenue for bioimaging with advancements in tunability, generality, and simplicity, apart from the covalent approach.
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Affiliation(s)
- Wen-Chao Geng
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 3, 00071, China
| | - Zhongju Ye
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Zhe Zheng
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 3, 00071, China
| | - Jie Gao
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 3, 00071, China
| | - Juan-Juan Li
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 3, 00071, China
| | - Muhammad Raza Shah
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, Karachi University, Karachi, 74200, Pakistan
| | - Lehui Xiao
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Dong-Sheng Guo
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 3, 00071, China
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Karayianni M, Pispas S. Block copolymer solution self‐assembly: Recent advances, emerging trends, and applications. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210430] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Maria Karayianni
- Theoretical and Physical Chemistry Institute National Hellenic Research Foundation Athens Greece
| | - Stergios Pispas
- Theoretical and Physical Chemistry Institute National Hellenic Research Foundation Athens Greece
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31
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Huang S, Song Y, He Z, Zhang JR, Zhu JJ. Self-assembled nanomaterials for biosensing and therapeutics: recent advances and challenges. Analyst 2021; 146:2807-2817. [PMID: 33949425 DOI: 10.1039/d1an00077b] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Self-assembled nanomaterials (SANs) exhibit designable biofunctions owing to their tunable nanostructures and modifiable surface. Various constituent units and multi-dimensional structures of SANs provide unlimited possibilities for numerous applications. This review emphasizes the recent development of SANs in the fields of biosensing, bioimaging, and nano-drug engineering. The unit type, design concepts, material advantages, assembly driving force, nanostructure effects, drug loading performance, etc. are discussed and summarized. Finally, we briefly summarize how to assemble unique nanomaterials and point out the key challenges in this field.
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Affiliation(s)
- Shan Huang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China.
| | - Yuexin Song
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China.
| | - Zhimei He
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China.
| | - Jian-Rong Zhang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China.
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China.
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32
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Vu KB, Phung TK, Tran TT, Mugemana C, Giang HN, Nhi TLP. Polystyrene nanoparticles prepared by nanoprecipitation: A recyclable template for fabricating hollow silica. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.02.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Vena MP, de Moor D, Ianiro A, Tuinier R, Patterson JP. Kinetic state diagrams for a highly asymmetric block copolymer assembled in solution. SOFT MATTER 2021; 17:1084-1090. [PMID: 33289775 DOI: 10.1039/d0sm01596b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Polymer self-assembly is used to form nanomaterials with a wide range of structures. While self-assembly of polymers in bulk has been thoroughly explored, the same process in solution remains widely used but partially unresolved, due to the formation of structures which are often kinetically trapped. In this paper we report kinetic state diagrams of polystyrene-b-poly(ethylene oxide) block copolymer in water by changing the solvent-switch assembly conditions. We study 36 different conditions for a single block copolymer, exploring three parameters: polymer concentration, temperature and rate addition of selective solvent. The data shows that polymer concentration plays an important role in determining which morphologies are accessible within a given set of experimental parameters and provides evidence that vesicles can evolve into particles with complex internal structures, supportive of recent mechanistic studies. Most importantly, the data shows a complex relationship between all parameters and the resulting kinetically trapped morphologies indicating that combined in situ and ex situ studies are required to gain a fundamental understanding of kinetically controlled block copolymer assembly processes.
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Affiliation(s)
- M Paula Vena
- Laboratory of Physical Chemistry, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
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Parent LR, Gnanasekaran K, Korpanty J, Gianneschi NC. 100th Anniversary of Macromolecular Science Viewpoint: Polymeric Materials by In Situ Liquid-Phase Transmission Electron Microscopy. ACS Macro Lett 2021; 10:14-38. [PMID: 35548998 DOI: 10.1021/acsmacrolett.0c00595] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A century ago, Hermann Staudinger proposed the macromolecular theory of polymers, and now, as we enter the second century of polymer science, we face a different set of opportunities and challenges for the development of functional soft matter. Indeed, many fundamental questions remain open, relating to physical structures and mechanisms of phase transformations at the molecular and nanoscale. In this Viewpoint, we describe efforts to develop a dynamic, in situ microscopy tool suited to the study of polymeric materials at the nanoscale that allows for direct observation of discrete structures and processes in solution, as a complement to light, neutron, and X-ray scattering methods. Liquid-phase transmission electron microscopy (LPTEM) is a nascent in situ imaging technique for characterizing and examining solvated nanomaterials in real time. Though still under development, LPTEM has been shown to be capable of several modes of imaging: (1) imaging static solvated materials analogous to cryo-TEM, (2) videography of nanomaterials in motion, (3) observing solutions or nanomaterials undergoing physical and chemical transformations, including synthesis, assembly, and phase transitions, and (4) observing electron beam-induced chemical-materials processes. Herein, we describe opportunities and limitations of LPTEM for polymer science. We review the basic experimental platform of LPTEM and describe the origin of electron beam effects that go hand in hand with the imaging process. These electron beam effects cause perturbation and damage to the sample and solvent that can manifest as artefacts in images and videos. We describe sample-specific experimental guidelines and outline approaches to mitigate, characterize, and quantify beam damaging effects. Altogether, we seek to provide an overview of this nascent field in the context of its potential to contribute to the advancement of polymer science.
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Affiliation(s)
- Lucas R. Parent
- Innovation Partnership Building, The University of Connecticut, Storrs, Connecticut 06269, United States
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Černoch P, Jager A, Černochová Z, Sincari V, Albuquerque LJC, Konefal R, Pavlova E, Giacomelli FC, Jager E. Engineering of pH-triggered nanoplatforms based on novel poly(2-methyl-2-oxazoline)-b-poly[2-(diisopropylamino)ethyl methacrylate] diblock copolymers with tunable morphologies for biomedical applications. Polym Chem 2021. [DOI: 10.1039/d1py00141h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
CROP and RAFT polymerization was used to produce PMeOxm-b-PDPAn block copolymers. The microfluid technique enabled the manufacturing of pH-triggered nanoplatforms with different morphologies as driven by the overall molecular weight of the chains.
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Affiliation(s)
- Peter Černoch
- Institute of Macromolecular Chemistry
- Czech Academy of Sciences
- 16206 Prague
- Czech Republic
| | - Alessandro Jager
- Institute of Macromolecular Chemistry
- Czech Academy of Sciences
- 16206 Prague
- Czech Republic
| | - Zulfiya Černochová
- Institute of Macromolecular Chemistry
- Czech Academy of Sciences
- 16206 Prague
- Czech Republic
| | - Vladimir Sincari
- Institute of Macromolecular Chemistry
- Czech Academy of Sciences
- 16206 Prague
- Czech Republic
| | | | - Rafal Konefal
- Institute of Macromolecular Chemistry
- Czech Academy of Sciences
- 16206 Prague
- Czech Republic
| | - Ewa Pavlova
- Institute of Macromolecular Chemistry
- Czech Academy of Sciences
- 16206 Prague
- Czech Republic
| | - Fernando C. Giacomelli
- Centro de Ciências Naturais e Humanas
- Universidade Federal do ABC
- Santo André 09210-580
- Brazil
| | - Eliezer Jager
- Institute of Macromolecular Chemistry
- Czech Academy of Sciences
- 16206 Prague
- Czech Republic
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36
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Huo H, Liu J, Kannan S, Chen L, Zhao Y, Zhang L, Chang G, Zhang Q, Liu F. Multicompartment Nanoparticles Bearing Hydrophilic/Hydrophobic Subdomains by Self-Assembly of Star Polymers in Aqueous Solution. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c02213] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Haohui Huo
- State Key Laboratory for Mechanical Behaviour of Materials, Shaanxi International Research Center for Soft Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Jie Liu
- State Key Laboratory for Mechanical Behaviour of Materials, Shaanxi International Research Center for Soft Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Senthil Kannan
- State Key Laboratory for Mechanical Behaviour of Materials, Shaanxi International Research Center for Soft Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Long Chen
- State Key Laboratory for Mechanical Behaviour of Materials, Shaanxi International Research Center for Soft Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Yimin Zhao
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Lei Zhang
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Gang Chang
- Instrumental Analysis Center, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Qilu Zhang
- State Key Laboratory for Mechanical Behaviour of Materials, Shaanxi International Research Center for Soft Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Feng Liu
- State Key Laboratory for Mechanical Behaviour of Materials, Shaanxi International Research Center for Soft Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
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37
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Klein T, Ulrich HF, Gruschwitz FV, Kuchenbrod MT, Takahashi R, Hoeppener S, Nischang I, Sakurai K, Brendel JC. Overcoming the Necessity of a Lateral Aggregation in the Formation of Supramolecular Polymer Bottlebrushes in Water. Macromol Rapid Commun 2020; 42:e2000585. [PMID: 33274820 DOI: 10.1002/marc.202000585] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 11/12/2020] [Indexed: 12/31/2022]
Abstract
The assembly of supramolecular polymer bottlebrushes in aqueous systems is, in most cases, associated with a lateral aggregation of the supramolecular building blocks in addition to their axial stacking. Here, it is demonstrated that this limitation can be overcome by attaching three polymer chains to a central supramolecular unit that possesses a sufficiently high number of hydrogen bonding units to compensate for the increased steric strain. Therefore, a 1,3,5-benzenetrisurea-polyethylene oxide conjugate is modified with different peptide units located next to the urea groups which should facilitate self-assembly in water. For a single amino acid per arm, spherical micelles are obtained for all three tested amino acids (alanine, leucine, and phenylalanine) featuring different hydrophobicities. Only a slight increase in size and solution stability of spherical micelles is observed with increasing hydrophobicity of amino acid unit. In contrast, introducing two amino acid units per arm and thus increasing the number of hydrogen bonds per unimer molecule results in the formation of cylindrical structures, that is, supramolecular polymer bottlebrushes, despite a suppressed lateral aggregation. Consequently, it can be concluded that the number of hydrogen bonds has a more profound impact on the resulting solution morphology than the hydrophobicity of the amino acid unit.
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Affiliation(s)
- Tobias Klein
- T. Klein, H. F. Ulrich, F. V. Gruschwitz, M. T. Kuchenbrod, Dr. S. Hoeppener, Dr. I. Nischang, Dr. J. C. Brendel, Friedrich Schiller University Jena, Humboldtstraße 10, 07743, Jena, Germany.,T. Klein, H. F. Ulrich, F. V. Gruschwitz, M. T. Kuchenbrod, Dr. S. Hoeppener, Dr. I. Nischang, Dr. J. C. Brendel, Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Hans F Ulrich
- T. Klein, H. F. Ulrich, F. V. Gruschwitz, M. T. Kuchenbrod, Dr. S. Hoeppener, Dr. I. Nischang, Dr. J. C. Brendel, Friedrich Schiller University Jena, Humboldtstraße 10, 07743, Jena, Germany.,T. Klein, H. F. Ulrich, F. V. Gruschwitz, M. T. Kuchenbrod, Dr. S. Hoeppener, Dr. I. Nischang, Dr. J. C. Brendel, Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Franka V Gruschwitz
- T. Klein, H. F. Ulrich, F. V. Gruschwitz, M. T. Kuchenbrod, Dr. S. Hoeppener, Dr. I. Nischang, Dr. J. C. Brendel, Friedrich Schiller University Jena, Humboldtstraße 10, 07743, Jena, Germany.,T. Klein, H. F. Ulrich, F. V. Gruschwitz, M. T. Kuchenbrod, Dr. S. Hoeppener, Dr. I. Nischang, Dr. J. C. Brendel, Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Maren T Kuchenbrod
- T. Klein, H. F. Ulrich, F. V. Gruschwitz, M. T. Kuchenbrod, Dr. S. Hoeppener, Dr. I. Nischang, Dr. J. C. Brendel, Friedrich Schiller University Jena, Humboldtstraße 10, 07743, Jena, Germany.,T. Klein, H. F. Ulrich, F. V. Gruschwitz, M. T. Kuchenbrod, Dr. S. Hoeppener, Dr. I. Nischang, Dr. J. C. Brendel, Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Rintaro Takahashi
- Dr. R. Takahashi, Prof. K. Sakurai, University of Kitakyushu, 1-1 Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka, 808-0135, Japan
| | - Stephanie Hoeppener
- T. Klein, H. F. Ulrich, F. V. Gruschwitz, M. T. Kuchenbrod, Dr. S. Hoeppener, Dr. I. Nischang, Dr. J. C. Brendel, Friedrich Schiller University Jena, Humboldtstraße 10, 07743, Jena, Germany.,T. Klein, H. F. Ulrich, F. V. Gruschwitz, M. T. Kuchenbrod, Dr. S. Hoeppener, Dr. I. Nischang, Dr. J. C. Brendel, Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Ivo Nischang
- T. Klein, H. F. Ulrich, F. V. Gruschwitz, M. T. Kuchenbrod, Dr. S. Hoeppener, Dr. I. Nischang, Dr. J. C. Brendel, Friedrich Schiller University Jena, Humboldtstraße 10, 07743, Jena, Germany.,T. Klein, H. F. Ulrich, F. V. Gruschwitz, M. T. Kuchenbrod, Dr. S. Hoeppener, Dr. I. Nischang, Dr. J. C. Brendel, Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Kazuo Sakurai
- Dr. R. Takahashi, Prof. K. Sakurai, University of Kitakyushu, 1-1 Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka, 808-0135, Japan
| | - Johannes C Brendel
- T. Klein, H. F. Ulrich, F. V. Gruschwitz, M. T. Kuchenbrod, Dr. S. Hoeppener, Dr. I. Nischang, Dr. J. C. Brendel, Friedrich Schiller University Jena, Humboldtstraße 10, 07743, Jena, Germany.,T. Klein, H. F. Ulrich, F. V. Gruschwitz, M. T. Kuchenbrod, Dr. S. Hoeppener, Dr. I. Nischang, Dr. J. C. Brendel, Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
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38
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SAXS methods for investigating macromolecular and self-assembled polyelectrolyte complexes. Methods Enzymol 2020; 646:223-259. [PMID: 33453927 DOI: 10.1016/bs.mie.2020.09.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Polyelectrolyte complexation is driven by associative interactions between oppositely charged polyelectrolytes, resulting in formation of a macroscopic polymer dense phase and a polymer dilute phase with applications in coatings, adhesives, and purification membranes. Beyond macroscale phase separation, precision polymer synthesis has enabled further development of polyelectrolyte complex (PEC)-based self-assembled micelles and hydrogels with applications in biotechnology. Interestingly, it has been suggested that mechanisms similar to polyelectrolyte complexation drive formation of biological condensates that play an indispensable role in cellular biogenesis. The formation pathways and functionality of these complex materials is dependent on the physical properties that are built into polymer structure and the resulting physical conformation in the dilute and dense phase. Scattering techniques have enabled in situ investigation of structure-function relationships in PEC materials that may address unresolved biophysical questions in cellular processes as well as catalyze the development of novel materials for diverse applications. We describe preparation of PEC materials with controlled polymer characteristics (length, blockiness, charge density), small-angle X-ray scattering (SAXS) techniques employed to probe appropriate length scales, and the data analysis routines from a practical standpoint for new users. This article deals with bulk complexes and not with the related, important and interesting area of non-equilibrium layer-by-layer assembly of polyelectrolytes.
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39
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da Silva LC, Borges AC, de Oliveira MG, de Farias MA. Visualization of supramolecular structure of Pluronic F127 micellar hydrogels using cryo-TEM. MethodsX 2020; 7:101084. [PMID: 33102155 PMCID: PMC7578745 DOI: 10.1016/j.mex.2020.101084] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 09/25/2020] [Indexed: 01/24/2023] Open
Abstract
Visualization of individual Pluronic® F127 micelles in hydrogels. Supramolecular structure evolution of micellar hydrogels as a function of concentration. Plunge-freezing of high viscosity solutions.
Pluronic® F127 micellar hydrogels are of growing interest to the biomedical field due to their versatility as drug delivery systems. Pluronic® F127 is a symmetric and amphiphilic triblock copolymer which in aqueous medium self-assembles into micelles that pack togetherwith increasing temperature or concentration, leading to non-flowable hydrogels. The microstructure of these hydrogels is usually investigated by small-angle X-ray scattering, which is not a readily available technique. Conversely, cryo-TEM is a widespread technique used for investigating the morphology of aqueous systems. In the case of Pluronic® F127 micellar systems, the elevated viscosity poses a significant challenge for specimen preparation and, consequently, for cryo-TEM observation. Herein, we show a trustworthy, inexpensive and readily available methodology for preparing specimens of highly viscous micellar solutions and non-flowable hydrogels using an automated vitrification system. With this methodology we were able to visualize not only the morphology of individual Pluronic® F127 micelles -but also the supramolecular structure evolution as a function of concentration. This methodology opens up a wide range of opportunities for hydrogel characterization, although additional systematic studies might be required in order to optimize and replicate it for similar systems.
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Affiliation(s)
- Laura C.E. da Silva
- Institute of Chemistry, University of Campinas, UNICAMP, 13083-970 Campinas, SP, Brazil
| | - Antonio C. Borges
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM),13083-970 Campinas, SP, Brazil
| | | | - Marcelo A. de Farias
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM),13083-970 Campinas, SP, Brazil
- Corresponding author.
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40
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Lebedeva M, Palmieri E, Kukura P, Fletcher SP. Emergence and Rearrangement of Dynamic Supramolecular Aggregates Visualized by Interferometric Scattering Microscopy. ACS NANO 2020; 14:11160-11168. [PMID: 32790332 PMCID: PMC7513470 DOI: 10.1021/acsnano.0c02414] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Studying dynamic self-assembling systems in their native environment is essential for understanding the mechanisms of self-assembly and thereby exerting full control over these processes. Traditional ensemble-based analysis methods often struggle to reveal critical features of the self-assembly that occur at the single particle level. Here, we describe a label-free single-particle assay to visualize real-time self-assembly in aqueous solutions by interferometric scattering microscopy. We demonstrate how the assay can be applied to biphasic reactions yielding micellar or vesicular aggregates, detecting the onset of aggregate formation, quantifying the kinetics at the single particle level, and distinguishing sigmoidal and exponential growth of aggregate populations. Furthermore, we can follow the evolution in aggregate size in real time, visualizing the nucleation stages of the self-assembly processes and record phenomena such as incorporation of oily components into the micelle or vesicle lumen.
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41
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Hurst PJ, Rakowski AM, Patterson JP. Ring-opening polymerization-induced crystallization-driven self-assembly of poly-L-lactide-block-polyethylene glycol block copolymers (ROPI-CDSA). Nat Commun 2020; 11:4690. [PMID: 32943622 PMCID: PMC7499262 DOI: 10.1038/s41467-020-18460-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 08/21/2020] [Indexed: 12/24/2022] Open
Abstract
The self-assembly of block copolymers into 1D, 2D and 3D nano- and microstructures is of great interest for a wide range of applications. A key challenge in this field is obtaining independent control over molecular structure and hierarchical structure in all dimensions using scalable one-pot chemistry. Here we report on the ring opening polymerization-induced crystallization-driven self-assembly (ROPI-CDSA) of poly-L-lactide-block-polyethylene glycol block copolymers into 1D, 2D and 3D nanostructures. A key feature of ROPI-CDSA is that the polymerization time is much shorter than the self-assembly relaxation time, resulting in a non-equilibrium self-assembly process. The self-assembly mechanism is analyzed by cryo-transmission electron microscopy, wide-angle x-ray scattering, Fourier transform infrared spectroscopy, and turbidity studies. The analysis revealed that the self-assembly mechanism is dependent on both the polymer molecular structure and concentration. Knowledge of the self-assembly mechanism enabled the kinetic trapping of multiple hierarchical structures from a single block copolymer.
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Affiliation(s)
- Paul J Hurst
- Department of Chemistry, University of California, Irvine, Irvine, CA, 92697-2025, USA
| | - Alexander M Rakowski
- Department of Chemistry, University of California, Irvine, Irvine, CA, 92697-2025, USA
| | - Joseph P Patterson
- Department of Chemistry, University of California, Irvine, Irvine, CA, 92697-2025, USA.
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Massi L, Najer A, Chapman R, Spicer CD, Nele V, Che J, Booth MA, Doutch JJ, Stevens MM. Tuneable peptide cross-linked nanogels for enzyme-triggered protein delivery. J Mater Chem B 2020; 8:8894-8907. [PMID: 33026394 DOI: 10.1039/d0tb01546f] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Many diseases are associated with the dysregulated activity of enzymes, such as matrix metalloproteinases (MMPs). This dysregulation can be leveraged in drug delivery to achieve disease- or site-specific cargo release. Self-assembled polymeric nanoparticles are versatile drug carrier materials due to the accessible diversity of polymer chemistry. However, efficient loading of sensitive cargo, such as proteins, and introducing functional enzyme-responsive behaviour remain challenging. Herein, peptide-crosslinked, temperature-sensitive nanogels for protein delivery were designed to respond to MMP-7, which is overexpressed in many pathologies including cancer and inflammatory diseases. The incorporation of N-cyclopropylacrylamide (NCPAM) into N-isopropylacrylamide (NIPAM)-based copolymers enabled us to tune the polymer lower critical solution temperature from 33 to 44 °C, allowing the encapsulation of protein cargo and nanogel-crosslinking at slightly elevated temperatures. This approach resulted in nanogels that were held together by MMP-sensitive peptides for enzyme-specific protein delivery. We employed a combination of cryogenic transmission electron microscopy (cryo-TEM), dynamic light scattering (DLS), small angle neutron scattering (SANS), and fluorescence correlation spectroscopy (FCS) to precisely decipher the morphology, self-assembly mechanism, enzyme-responsiveness, and model protein loading/release properties of our nanogel platform. Simple variation of the peptide linker sequence and combining multiple different crosslinkers will enable us to adjust our platform to target specific diseases in the future.
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Affiliation(s)
- Lucia Massi
- Department of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK.
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A universal approach for the synthesis of mesoporous gold, palladium and platinum films for applications in electrocatalysis. Nat Protoc 2020; 15:2980-3008. [PMID: 32839575 DOI: 10.1038/s41596-020-0359-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 05/20/2020] [Indexed: 01/10/2023]
Abstract
High-surface-area mesoporous materials expose abundant functional sites for improved performance in applications such as gas storage/separation, catalysis, and sensing. Recently, soft templates composed of amphiphilic surfactants and block copolymers have been used to introduce mesoporosity in various materials, including metals, metal oxides and carbonaceous compounds. In particular, mesoporous metals are attractive in electrocatalysis because their porous networks expose numerous unsaturated atoms on high-index facets that are highly active in catalysis. In this protocol, we describe how to create mesoporous metal films composed of gold, palladium, or platinum using block copolymer micelle templates. The amphiphilic block copolymer micelles are the sacrificial templates and generate uniform structures with tunable pore sizes in electrodeposited metal films. The procedure describes the electrodeposition in detail, including parameters such as micelle diameters, deposition potentials, and deposition times to ensure reproducibility. The micelle diameters can be controlled by swelling the micelles with different solvent mixtures or by using block copolymer micelles with different molecular weights. The deposition potentials and deposition times allow further control of the mesoporous structure and its thickness, respectively. Procedures for example applications are included: glucose oxidation, ethanol oxidation and methanol oxidation reactions. The synthetic methods for preparation of mesoporous metal films will take ~4 h; the subsequent electrochemical tests will take ~5 h for glucose sensing and ~3 h for alcohol oxidation reaction.
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Hu XY, Gao J, Chen FY, Guo DS. A host-guest drug delivery nanosystem for supramolecular chemotherapy. J Control Release 2020; 324:124-133. [DOI: 10.1016/j.jconrel.2020.05.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 05/01/2020] [Accepted: 05/04/2020] [Indexed: 01/15/2023]
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Chen S, Qin J, Du J. Two Principles for Polymersomes with Ultrahigh Biomacromolecular Loading Efficiencies: Acid-Induced Adsorption and Affinity-Enhanced Attraction. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00252] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Shuai Chen
- Department of Orthopedics, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, 301 Middle Yanchang Road, Shanghai 200072, China
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Jianglei Qin
- College of Chemistry and Environmental Science, Hebei University, 180 East Wusi Road, Baoding 071002, China
| | - Jianzhong Du
- Department of Orthopedics, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, 301 Middle Yanchang Road, Shanghai 200072, China
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
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Carmean RN, Sims MB, Figg CA, Hurst PJ, Patterson JP, Sumerlin BS. Ultrahigh Molecular Weight Hydrophobic Acrylic and Styrenic Polymers through Organic-Phase Photoiniferter-Mediated Polymerization. ACS Macro Lett 2020; 9:613-618. [PMID: 35648494 DOI: 10.1021/acsmacrolett.0c00203] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
As many physical properties of polymers scale with molecular weight, the ability to achieve polymers of nearly inaccessibly high molecular weight provides an opportunity to probe the upper size limit of macromolecular phenomena. Yet many of the most stimulating macromolecular designs remain out of reach of current ultrahigh molecular weight (UHMW) polymer synthetic approaches. Herein, we show that UHMW polymers of diverse composition can be achieved by irradiation of thiocarbonylthio photoiniferters with long-wave ultraviolet or visible light in concentrated organic solution. This facile photopolymerization strategy is general to acrylic-, acrylamido-, methacrylic-, and styrenic-based monomers, enabling the synthesis of well-defined macromolecules with molecular weights in excess of 106 g/mol. The high chain-end fidelity afforded by photoiniferter polymerization conditions facilitated the design of UHMW amphiphilic block copolymers, which were found to self-assemble into micellar morphologies up to 200 nm in diameter.
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Affiliation(s)
- R. Nicholas Carmean
- George and Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science and Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Michael B. Sims
- George and Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science and Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - C. Adrian Figg
- George and Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science and Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Paul J. Hurst
- Department of Chemistry, University of California−Irvine, 1102 Natural Sciences II, Irvine, California 92697, United States
| | - Joseph P. Patterson
- Department of Chemistry, University of California−Irvine, 1102 Natural Sciences II, Irvine, California 92697, United States
| | - Brent S. Sumerlin
- George and Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science and Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
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Kang Y, Henzie J, Gu H, Na J, Fatehmulla A, Shamsan BSA, Aldhafiri AM, Farooq WA, Bando Y, Asahi T, Jiang B, Li H, Yamauchi Y. Mesoporous Metal-Metalloid Amorphous Alloys: The First Synthesis of Open 3D Mesoporous Ni-B Amorphous Alloy Spheres via a Dual Chemical Reduction Method. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1906707. [PMID: 32022431 DOI: 10.1002/smll.201906707] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/27/2019] [Indexed: 06/10/2023]
Abstract
Selective hydrogenation of nitriles is an industrially relevant synthetic route for the preparation of primary amines. Amorphous metal-boron alloys have a tunable, glass-like structure that generates a high concentration of unsaturated metal surface atoms that serve as active sites in hydrogenation reactions. Here, a method to create nanoparticles composed of mesoporous 3D networks of amorphous nickel-boron (Ni-B) alloy is reported. The hydrogenation of benzyl cyanide to β-phenylethylamine is used as a model reaction to assess catalytic performance. The mesoporous Ni-B alloy spheres have a turnover frequency value of 11.6 h-1 , which outperforms non-porous Ni-B spheres with the same composition. The bottom-up synthesis of mesoporous transition metal-metalloid alloys expands the possible reactions that these metal architectures can perform while simultaneously incorporating more Earth-abundant catalysts.
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Affiliation(s)
- Yunqing Kang
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai, 200234, China
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
- Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo, 169-8555, Japan
| | - Joel Henzie
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Huajun Gu
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai, 200234, China
| | - Jongbeom Na
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
- School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Amanullah Fatehmulla
- Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia
| | - Belqes Saeed A Shamsan
- Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia
| | - Abdullah M Aldhafiri
- Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia
| | - W Aslam Farooq
- Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia
| | - Yoshio Bando
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
- Institute of Molecular Plus, Tianjin University, No. 11 Building, No. 92 Weijin Road, Nankai District, Tianjin, 300072, P. R. China
- Australian Institute for Innovative Materials (AIIM), University of Wollongong, Squires Way, North Wollongong, NSW, 2500, Australia
| | - Toru Asahi
- Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo, 169-8555, Japan
| | - Bo Jiang
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Hexing Li
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai, 200234, China
- Shanghai University of Electric Power, Shanghai, 200062, China
| | - Yusuke Yamauchi
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
- School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD, 4072, Australia
- Department of Plant & Environmental New Resources, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do, 446-701, Republic of Korea
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48
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Mukherjee A, Pal DS, Kar H, Ghosh S. Confined supramolecular polymers in water with exceptional stability, photoluminescence and chiroptical properties. Polym Chem 2020. [DOI: 10.1039/d0py01329c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lipid-encased chiral supramolecular polymer nanorods (SPNRs), synthesized by the nanoprecipitation method in water from a hydrophobic naphthalene-diimide derivative, exhibit excellent thermal stability, intense fluorescence and strong CPL.
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Affiliation(s)
- Anurag Mukherjee
- School of Applied and Interdisciplinary Sciences
- Indian Association for the Cultivation of Science
- Kolkata
- India
| | - Deep Sankar Pal
- School of Applied and Interdisciplinary Sciences
- Indian Association for the Cultivation of Science
- Kolkata
- India
| | - Haridas Kar
- School of Applied and Interdisciplinary Sciences
- Indian Association for the Cultivation of Science
- Kolkata
- India
| | - Suhrit Ghosh
- School of Applied and Interdisciplinary Sciences
- Indian Association for the Cultivation of Science
- Kolkata
- India
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49
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Biais P, Colombani O, Bouteiller L, Stoffelbach F, Rieger J. Unravelling the formation of BAB block copolymer assemblies during PISA in water. Polym Chem 2020. [DOI: 10.1039/d0py00422g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
BAB triblock copolymers prepared by PISA in water self-assemble into a transient network of bridged micelles. The slowdown of the exchange of B blocks between micelles during PISA is highlighted as well as the parameters affecting the polymerization.
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Affiliation(s)
- Pauline Biais
- Sorbonne Université
- CNRS
- Institut Parisien de Chimie Moléculaire
- UMR 8232
- 75252 Paris Cedex 05
| | - Olivier Colombani
- Institut des Molécules et Matériaux du Mans (IMMM)
- UMR 6283 CNRS Le Mans Université
- Avenue Olivier Messiaen
- 72085 Le Mans Cedex 9
- France
| | - Laurent Bouteiller
- Sorbonne Université
- CNRS
- Institut Parisien de Chimie Moléculaire
- UMR 8232
- 75252 Paris Cedex 05
| | - François Stoffelbach
- Sorbonne Université
- CNRS
- Institut Parisien de Chimie Moléculaire
- UMR 8232
- 75252 Paris Cedex 05
| | - Jutta Rieger
- Sorbonne Université
- CNRS
- Institut Parisien de Chimie Moléculaire
- UMR 8232
- 75252 Paris Cedex 05
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Klein T, Ulrich HF, Gruschwitz FV, Kuchenbrod MT, Takahashi R, Fujii S, Hoeppener S, Nischang I, Sakurai K, Brendel JC. Impact of amino acids on the aqueous self-assembly of benzenetrispeptides into supramolecular polymer bottlebrushes. Polym Chem 2020. [DOI: 10.1039/d0py01185a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The choice of the amino acid unit in benzenetrispeptide-PEO conjugates allows to fine-tune the self-assembly strength and to control the resulting solution morphologies in water.
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