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de Souza Melchiors M, Ivanov T, Harley I, Sayer C, Araújo PHH, Caire da Silva L, Ferguson CTJ, Landfester K. Membrane Manipulation of Giant Unilamellar Polymer Vesicles with a Temperature-Responsive Polymer. Angew Chem Int Ed Engl 2022; 61:e202207998. [PMID: 35929609 PMCID: PMC9804479 DOI: 10.1002/anie.202207998] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Indexed: 01/05/2023]
Abstract
Understanding the complex behavior and dynamics of cellular membranes is integral to gain insight into cellular division and fusion processes. Bottom-up synthetic cells are as a platform for replicating and probing cellular behavior. Giant polymer vesicles are more robust than liposomal counterparts, as well as having a broad range of chemical functionalities. However, the stability of the membrane can prohibit dynamic processes such as membrane phase separation and division. Here, we present a method for manipulating the membrane of giant polymersomes using a temperature responsive polymer. Upon elevation of temperature deformation and phase separation of the membrane was observed. Upon cooling, the membrane relaxed and became homogeneous again, with infrequent division of the synthetic cells.
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Affiliation(s)
- Marina de Souza Melchiors
- Department of Physical Chemistry of PolymersMax Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany,Department of Chemical Engineering and Food EngineeringFederal University of Santa CatarinaP.O. Box 47688040-900Florianópolis-SCBrazil
| | - Tsvetomir Ivanov
- Department of Physical Chemistry of PolymersMax Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Iain Harley
- Department of Physical Chemistry of PolymersMax Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Claudia Sayer
- Department of Chemical Engineering and Food EngineeringFederal University of Santa CatarinaP.O. Box 47688040-900Florianópolis-SCBrazil
| | - Pedro H. H. Araújo
- Department of Chemical Engineering and Food EngineeringFederal University of Santa CatarinaP.O. Box 47688040-900Florianópolis-SCBrazil
| | - Lucas Caire da Silva
- Department of Physical Chemistry of PolymersMax Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Calum T. J. Ferguson
- Department of Physical Chemistry of PolymersMax Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany,School of ChemistryUniversity of BirminghamEdgbastonBirminghamB15 2TTUK
| | - Katharina Landfester
- Department of Physical Chemistry of PolymersMax Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
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de Souza Melchiors M, Ivanov T, Harley I, Sayer C, Henrique Hermes de Araújo P, Caire da Silva L, Ferguson C, Landfester K. Membrane manipulation of giant unilamellar polymer vesicles with a temperature‐responsive polymer. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Tsvetomir Ivanov
- Max-Planck-Institut fur Polymerforschung Physical Chemistry of Polymers GERMANY
| | - Iain Harley
- Max-Planck-Institut fur Polymerforschung Physical Chemistry of Polymers GERMANY
| | - Claudia Sayer
- Federal University of Santa Catarina: Universidade Federal de Santa Catarina Chemical Engineering and Food Engineering BRAZIL
| | | | - Lucas Caire da Silva
- Max Planck Institute for Polymer Research Physical Chemistry of Polymers Ackermannweg 10 55128 Mainz GERMANY
| | - Calum Ferguson
- Max-Planck-Institut fur Polymerforschung Physical Chemistry of Polymers GERMANY
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Gas-Wetting Alteration by Fluorochemicals and Its Application for Enhancing Gas Recovery in Gas-Condensate Reservoirs: A Review. ENERGIES 2020. [DOI: 10.3390/en13184591] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Gas-wetting alteration is a versatile and effective approach for alleviating liquid-blockage that occurs when the wellbore pressure of a gas-condensate reservoir drops below the dew point. Fluorochemicals are of growing interest in gas-wetting alteration because of their high density of fluorine groups and thermal stability, which can change the reservoir wettability into more favorable conditions for liquids. This review aims to integrate the overlapping research between the current knowledge in organic chemistry and enhanced oil and gas recovery. The difference between wettability alteration and gas-wetting alteration is illustrated, and the methods used to evaluate gas-wetting are summarized. Recent advances in the applications of fluorochemicals for gas-wetting alteration are highlighted. The mechanisms of self-assembling adsorption layers formed by fluorochemicals with different surface morphologies are also reviewed. The factors that affect the gas-wetting performance of fluorochemicals are summarized. Meanwhile, the impacts of gas-wetting alteration on the migration of fluids in the pore throat are elaborated. Furthermore, the Wenzel and Cassie-Baxter theories are often used to describe the wettability model, but they are limited in reflecting the wetting regime of the gas-wetting surface; therefore, a wettability model for gas-wetting is discussed. Considering the promising prospects of gas-wetting alteration, this study is expected to provide insights into the relevance of gas-wetting, surface morphology and fluorochemicals, further exploring the mechanism of flow efficiency improvement of fluids in unconventional oil and gas reservoirs.
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Kirillova A, Marschelke C, Synytska A. Hybrid Janus Particles: Challenges and Opportunities for the Design of Active Functional Interfaces and Surfaces. ACS APPLIED MATERIALS & INTERFACES 2019; 11:9643-9671. [PMID: 30715834 DOI: 10.1021/acsami.8b17709] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Janus particles are a unique class of multifunctional patchy particles combining two dissimilar chemical or physical functionalities at their opposite sides. The asymmetry characteristic for Janus particles allows them to self-assemble into sophisticated structures and materials not attainable by their homogeneous counterparts. Significant breakthroughs have recently been made in the synthesis of Janus particles and the understanding of their assembly. Nevertheless, the advancement of their applications is still a challenging field. In this Review, we highlight recent developments in the use of Janus particles as building blocks for functional materials. We provide a brief introduction into the synthetic strategies for the fabrication of JPs and their properties and assembly, outlining the existing challenges. The focus of this Review is placed on the applications of Janus particles for active interfaces and surfaces. Active functional interfaces are created owing to the stabilization efficiency of Janus particles combined with their capability for interface structuring and functionalizing. Moreover, Janus particles can be employed as building blocks to fabricate active functional surfaces with controlled chemical and topographical heterogeneity. Ultimately, we will provide implications for the rational design of multifunctional materials based on Janus particles.
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Affiliation(s)
- Alina Kirillova
- Department of Mechanical Engineering and Materials Science, Edmund T. Pratt Jr. School of Engineering , Duke University , Durham , North Carolina 27708 , United States
| | - Claudia Marschelke
- Leibniz-Institut für Polymerforschung Dresden e.V. , Hohe Strasse 6 , 01069 Dresden , Germany
- Fakultät Mathematik und Naturwissenschaften , Technische Universität Dresden , 01062 Dresden , Germany
| | - Alla Synytska
- Leibniz-Institut für Polymerforschung Dresden e.V. , Hohe Strasse 6 , 01069 Dresden , Germany
- Fakultät Mathematik und Naturwissenschaften , Technische Universität Dresden , 01062 Dresden , Germany
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Wang L, Pan M, Song S, Zhu L, Yuan J, Liu G. Intriguing Morphology Evolution from Noncrosslinked Poly(tert-butyl acrylate) Seeds with Polar Functional Groups in Soap-Free Emulsion Polymerization of Styrene. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:7829-40. [PMID: 27389855 DOI: 10.1021/acs.langmuir.6b01179] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Herein, we demonstrate a facile approach to prepare anisotropic poly(tert-butyl acrylate)/polystyrene (PtBA/PS) composite particles with controllable morphologies by soap-free seeded emulsion polymerization (SSEP). In the first step, noncrosslinked PtBA seeds with self-stabilizing polar functional groups (e.g., ester groups and radicals) are synthesized by soap-free emulsion polymerization. During the subsequent SSEP of styrene (St), PS bulges are nucleated on the PtBA seeds due to the microphase separation confined in the latex particles. The morphology evolution of PtBA/PS composite particles is tailored by varying the monomer/seed feed ratio, polymerization time, and polymerization temperature. Many intriguing morphologies, including hamburger-like, litchi-like, mushroom-like, strawberry-like, bowl-like, and snowman-like, have been acquired for PtBA/PS composite particles. The polar groups on the PtBA seed surface greatly influence the formation and further merging of PS/St bulges during the polymerization. A possible formation mechanism is proposed on the basis of experimental results. These complex composite particles are promising for applications in superhydrophobic coatings.
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Affiliation(s)
- Lu Wang
- Institute of Polymer Science and Engineering, Hebei University of Technology , Tianjin 300130, P. R. China
| | - Mingwang Pan
- Institute of Polymer Science and Engineering, Hebei University of Technology , Tianjin 300130, P. R. China
| | - Shaofeng Song
- Institute of Polymer Science and Engineering, Hebei University of Technology , Tianjin 300130, P. R. China
| | - Lei Zhu
- Department of Macromolecular Science and Engineering, Case Western Reserve University , Cleveland, Ohio 44106-7202, United States
| | - Jinfeng Yuan
- Institute of Polymer Science and Engineering, Hebei University of Technology , Tianjin 300130, P. R. China
| | - Gang Liu
- Institute of Polymer Science and Engineering, Hebei University of Technology , Tianjin 300130, P. R. China
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Abstract
Janus particles, named after the two-faced Roman god Janus, have different surface makeups, structures or compartments on two sides. This review highlights recent advances in employing Janus particles as novel analytical tools for live cell imaging and biosensing. Unlike conventional particles used in analytical science, two-faced Janus particles provide asymmetry and directionality, and can combine different or even incompatible properties within a single particle. The broken symmetry enables imaging and quantification of rotational dynamics, revealing information beyond what traditional measurements offer. The spatial segregation of molecules on the surface of a single particle also allows analytical functions that would otherwise interfere with each other to be decoupled, opening up opportunities for novel multimodal analytical methods. We summarize here the development of Janus particles, a few general methods for their fabrication and, more importantly, the emerging and novel applications of Janus particles as multi-functional imaging probes and sensors.
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Affiliation(s)
- Yi Yi
- Department of Chemistry, Indiana University, Bloomington, IN 47405, USA.
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Lu C, Urban MW. One-Step Synthesis of Amphiphilic Ultrahigh Molecular Weight Block Copolymers by Surfactant-Free Heterogeneous Radical Polymerization. ACS Macro Lett 2015; 4:1317-1320. [PMID: 35614775 DOI: 10.1021/acsmacrolett.5b00745] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Ultrahigh molecular weight (>106 g/mol) amphiphilic block copolymers were synthesized using one-step surfactant-free heterogeneous radical polymerization (SFHRP). The polymerization initially involves formation of water-soluble homopolymer blocks, followed by copolymerization of a hydrophobic monomer, resulting in ultrahigh molecular weight block copolymers. Facilitating heterogeneous reaction conditions and continuous supply of an initiator controls the process. Using this synthetic approach, we synthesized amphiphilic block copolymers of poly(2-(N,N-dimethylamino)ethyl methacrylate)-block-poly(n-butyl acrylate) (pDMAEMA-b-pnBA), pDMAEMA-block-p(tert-butyl acrylate) (pDMAEMA-b-tBA), and pDMAEMA-block-polystyrene (pDMAEMA-b-pSt) with molecular weights of 1.98 × 106, 1.18 × 106, and 0.91 × 106 g/mol, respectively. These ultrahigh molecular weight block copolymers can self-assemble in nonpolar solvents to form thermochromic inverse polymeric micelles as well as other shapes and exhibit many potential applications.
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Affiliation(s)
- Chunliang Lu
- Department
of Materials Science
and Engineering, Center for Optical Materials and Engineering Technologies
(COMSET), Clemson University, Clemson, South Carolina 29634-0915, United States
| | - Marek W. Urban
- Department
of Materials Science
and Engineering, Center for Optical Materials and Engineering Technologies
(COMSET), Clemson University, Clemson, South Carolina 29634-0915, United States
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Ku KH, Kim Y, Yi GR, Jung YS, Kim BJ. Soft Patchy Particles of Block Copolymers from Interface-Engineered Emulsions. ACS NANO 2015; 9:11333-41. [PMID: 26469295 DOI: 10.1021/acsnano.5b05058] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
We report a simple and practical method for creating colloidal patchy particles with a variety of three-dimensional shapes via the evaporation-induced assembly of polystyrene-b-poly(4-vinylpyridine) (PS-b-P4VP) block copolymer (BCP) in an oil-in-water emulsion. Depending on the particle volume, a series of patchy particles in the shapes of snowmen, dumbbells, triangles, tetrahedra, and raspberry can be prepared, which are then precisely tuned by modulating the interfacial interaction at the particle/water interface using a mixture of two different surfactants. Moreover, for a given interfacial interaction, the stretching penalty of the BCPs in the patchy particles can be systematically controlled by adding P4VP homopolymers, which decreases the number of patches of soft particles from multiple patches to a single patch but increases the size of the patch. Calculations based on the strong segregation theory supported the experimental observation of various soft patchy particles and identified the underlying principles of their formation with tunable 3D structures.
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Affiliation(s)
| | | | - Gi-Ra Yi
- School of Chemical Engineering, Sungkyunkwan University , Suwon 440-746, Republic of Korea
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Wang F, Liu H, Zhang J, Zhou X, Zhang X. Synthesis of snowman‐like magnetic/nonmagnetic nanocomposite asymmetric particles via seeded emulsion polymerization initiated by γ‐ray radiation. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26274] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Feng‐Wei Wang
- Department of Polymer Science and Engineering, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Hua‐Rong Liu
- Department of Polymer Science and Engineering, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jin‐De Zhang
- Department of Polymer Science and Engineering, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xiang‐Tian Zhou
- Department of Polymer Science and Engineering, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xing‐Yuan Zhang
- Department of Polymer Science and Engineering, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
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