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Kariya M, Omoto K, Nomura K, Yonezawa K, Kamikubo H, Nishino T, Inoie T, Rapenne G, Yasuhara K. Lipid cubic phase with an organic-inorganic hybrid structure formed by organoalkoxysilane lipid. Chem Commun (Camb) 2024; 60:2168-2171. [PMID: 38205510 DOI: 10.1039/d3cc05167f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
A lipid cubic phase encompassing a cross-linked siloxane structure was formed by the self-assembly of a synthetic organoalkoxysilane lipid in water. The spontaneous sol-gel reaction of the alkoxysilane moiety on the lipid head group produced an organic-inorganic hybrid material with a double gyroid Ia3d cubic structure.
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Affiliation(s)
- Miki Kariya
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, 630-0192, Japan.
| | - Kenichiro Omoto
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, 630-0192, Japan.
| | - Kaoru Nomura
- Bioorganic Research Institute, Suntory Foundation for Life Sciences, 8-1-1 Seikadai, Seika-cho, Soraku-gun, Kyoto, 619-0284, Japan
| | - Kento Yonezawa
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, 630-0192, Japan.
- Center for Digital Green-innovation, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, 630-0192, Japan
| | - Hironari Kamikubo
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, 630-0192, Japan.
- Center for Digital Green-innovation, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, 630-0192, Japan
| | - Toshio Nishino
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, 630-0192, Japan.
| | - Tomomi Inoie
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, 630-0192, Japan.
| | - Gwénaël Rapenne
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, 630-0192, Japan.
- CEMES-CNRS, Université de Toulouse, CNRS, 29 Rue Marvig, F-31055 Toulouse Cedex 4, France
| | - Kazuma Yasuhara
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, 630-0192, Japan.
- Center for Digital Green-innovation, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, 630-0192, Japan
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2
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Bodkin LN, Krajnak ZA, Dong R, Osuji CO, Gin DL. Cross-linkable, phosphobetaine-based, zwitterionic amphiphiles that form lyotropic bicontinuous cubic phases. SOFT MATTER 2023; 19:3768-3772. [PMID: 37191297 DOI: 10.1039/d3sm00269a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
The design, synthesis, and lyotropic liquid crystal phase behaviour of six cross-linkable, phosphobetaine-based, zwitterionic amphiphiles are described. Two form a QII phase with aq. NH4Cl solution, giving 3D-nanoporous membrane materials that can be used for water desalination and are not susceptible to ion exchange like traditional ionic analogues.
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Affiliation(s)
- Lauren N Bodkin
- Department of Chemistry, University of Colorado, Boulder, CO 80309, USA.
| | - Zachary A Krajnak
- Department of Chemistry, University of Colorado, Boulder, CO 80309, USA.
| | - Ruiqi Dong
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Chinedum O Osuji
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Douglas L Gin
- Department of Chemistry, University of Colorado, Boulder, CO 80309, USA.
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3
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Xu Y, Zhu H, Ding Z, Zhao X, Yin J, Graff B, Gao J, Lalevée J. Distinctive Colorimetric Response of Benzaldehyde Substituted Polydiacetylene Vesicle to Temperature, pH and Organic Amines. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202200216] [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)
- Yangyang Xu
- College of Chemistry and Materials Science Anhui Normal University South Jiuhua Road 189 Wuhu Anhui Province 241002 P. R. China
| | - Haibin Zhu
- College of Chemistry and Materials Science Anhui Normal University South Jiuhua Road 189 Wuhu Anhui Province 241002 P. R. China
| | - Zhaofu Ding
- College of Chemistry and Materials Science Anhui Normal University South Jiuhua Road 189 Wuhu Anhui Province 241002 P. R. China
| | - Xianjun Zhao
- College of Chemistry and Materials Science Anhui Normal University South Jiuhua Road 189 Wuhu Anhui Province 241002 P. R. China
| | - Jiansong Yin
- College of Chemistry and Materials Science Anhui Normal University South Jiuhua Road 189 Wuhu Anhui Province 241002 P. R. China
| | - Bernadette Graff
- CNRS Université de Haute‐Alsace IS2M UMR 7361 Mulhouse F‐68100 France
| | - Jiangang Gao
- School of Chemical and Environmental Engineering Anhui Polytechnic University 8th Beijing Middle Road Wuhu 241000 P. R. China
| | - Jacques Lalevée
- CNRS Université de Haute‐Alsace IS2M UMR 7361 Mulhouse F‐68100 France
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4
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The Journey of 1-Keto-1,2,3,4-Tetrahydrocarbazole Based Fluorophores: From Inception to Implementation. J Fluoresc 2022; 32:2023-2052. [PMID: 35829843 DOI: 10.1007/s10895-022-03004-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 07/01/2022] [Indexed: 10/17/2022]
Abstract
Carbazole is a unique template associated with several biological activities. It is due to the diverse and versatile biological properties of carbazole derivatives that they are of immense interest to the research community. 1-keto-1,2,3,4-tetrahydrocarbazoles are important synthetic intermediates to obtain carbazole derivatives. Several members of this family emit fluorescence on photoexcitation. In the context of biochemical and biophysical research, designing and characterising small molecule environment sensitive fluorophores is extremely significant. This article aims to be a state of the art review with synthetic and photophysical details of a variety of fluorophores based on 1-keto-1,2,3,4-tetrahydrocarbazole skeleton.
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5
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Fu H, Baumgartner R, Song Z, Chen C, Cheng J, Lin Y. Generalized Model of Cooperative Covalent Polymerization: Connecting the Supramolecular Binding Interactions with the Catalytic Behavior. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hailin Fu
- Department of Chemistry and Polymer Program at the Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Ryan Baumgartner
- Department of Materials Science and Engineering and Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Ziyuan Song
- Department of Materials Science and Engineering and Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Chongyi Chen
- Department of Materials Science and Engineering and Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Jianjun Cheng
- Department of Materials Science and Engineering and Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Yao Lin
- Department of Chemistry and Polymer Program at the Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
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6
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Fonseka NM, Arce FT, Christie HS, Aspinwall CA, Saavedra SS. Nanomechanical Properties of Artificial Lipid Bilayers Composed of Fluid and Polymerizable Lipids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:100-111. [PMID: 34968052 DOI: 10.1021/acs.langmuir.1c02098] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Polymerization enhances the stability of a planar supported lipid bilayer (PSLB) but it also changes its chemical and mechanical properties, attenuates lipid diffusion, and may affect the activity of integral membrane proteins. Mixed bilayers composed of fluid lipids and poly(lipids) may provide an appropriate combination of polymeric stability coupled with the fluidity and elasticity needed to maintain the bioactivity of reconstituted receptors. Previously (Langmuir, 2019, 35, 12483-12491) we showed that binary mixtures of the polymerizable lipid bis-SorbPC and the fluid lipid DPhPC form phase-segregated PSLBs composed of nanoscale fluid and poly(lipid) domains. Here we used atomic force microscopy (AFM) to compare the nanoscale mechanical properties of these binary PSLBs with single-component PSLBs. The elastic (Young's) modulus, area compressibility modulus, and bending modulus of bis-SorbPC PSLBs increased upon polymerization. Before polymerization, breakthrough events at forces below 5 nN were observed, but after polymerization, the AFM tip could not penetrate the PSLB up to an applied force of 20 nN. These results are attributed to the polymeric network in poly(bis-SorbPC), which increases the bilayer stiffness and resists compression and bending. In binary DPhPC/poly(bis-SorbPC) PSLBs, the DPhPC domains are less stiff, more compressible, and are less resistant to rupture and bending compared to pure DPhPC bilayers. These differences are attributed to bis-SorbPC monomers and oligomers present in DPhPC domains that disrupt the packing of DPhPC molecules. In contrast, the poly(bis-SorbPC) domains are stiffer and less compressible relative to pure PSLBs; this difference is attributed to DPhPC filling the nm-scale pores in the polymerized domains that are created during bis-SorbPC polymerization. Thus, incomplete phase segregation increases the stability of poly(bis-SorbPC) but has the opposite, detrimental effect for DPhPC. Overall, these results provide guidance for the design of partially polymerized bilayers for technological uses.
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Affiliation(s)
- N Malithi Fonseka
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721, United States
| | - Fernando Teran Arce
- Department of Medicine, University of Arizona, Tucson, Arizona 85721, United States
- Department of Biomedical Engineering, University of Arizona, Tucson, Arizona 85721, United States
| | - Hamish S Christie
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721, United States
| | - Craig A Aspinwall
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721, United States
- BIO5 Institute and Department of Biomedical Engineering, University of Arizona, Tucson, Arizona 85721, United States
| | - S Scott Saavedra
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721, United States
- BIO5 Institute and Department of Biomedical Engineering, University of Arizona, Tucson, Arizona 85721, United States
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7
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Gamma Radiation- and Ultraviolet-Induced Polymerization of Bis(amino acid)fumaramide Gel Assemblies. Polymers (Basel) 2022; 14:polym14010214. [PMID: 35012236 PMCID: PMC8747669 DOI: 10.3390/polym14010214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 12/20/2021] [Accepted: 12/29/2021] [Indexed: 12/04/2022] Open
Abstract
Controlling the polymerization of supramolecular self-assembly through external stimuli holds great potential for the development of responsive soft materials and manipulation at the nanoscale. Vinyl esters of bis(leu or val)fumaramide (1a and 2a) have been found to be gelators of various organic solvents and were applied in this investigation of the influence of organogelators’ self-assembly on solid-state polymerization induced by gamma and ultraviolet irradiation. Here, we report our investigation into the influences of self-assemblies of bis(amino acid vinyl ester)fumaramides on gamma-ray- and ultraviolet-induced polymerization. The gelator molecules self-assembled by non-covalent interactions, mainly through hydrogen bonds between the amide group (CONH) and the carboxyl group (COO), thus forming a gel network. NMR and FTIR spectroscopy were used to investigate and characterize supramolecular gels. TEM and SEM microscopy were used to investigate the morphology of gels and polymers. Morphology studies showed that the gels contained a filamentous structure of nanometer dimensions that was exhaustive in a three-dimensional network. The prepared derivatives contained reactive alkyl groups suitable for carrying out the polymerization reaction initiated by gamma or ultraviolet radiation in the supramolecular aggregates of selected gels. It was found that the polymerization reaction occurred only in the network of the gel and was dependent on the structure of aggregates or the proximity and orientation of double bonds in the gel network. Polymers were formed by the gels exposure to gamma and ultraviolet radiation in toluene, and water/DMF gels with transcripts of their gel structure into polymers. The polymeric material was able to immobilize various solvents by swelling. Furthermore, methyl esters of bis(leu and val)fumaramide (1b and 2b) were synthesized; these compounds showed no gelling properties, and the crystal structure of the valine derivative 2b was determined.
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8
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Li P, Reinhardt MI, Dyer SS, Moore KE, Imran OQ, Gin DL. Effects of structural modification of (alkyldiene-imidazolium bromide)-based gemini monomers on the formation of the lyotropic bicontinuous cubic phase. SOFT MATTER 2021; 17:9259-9263. [PMID: 34636835 DOI: 10.1039/d1sm01100f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Seven homologues of an amphiphilic gemini monomer were synthesized and screened for the ability to form a bicontinuous cubic (Q) lyotropic liquid crystal phase. Four of these homologues form a Q phase with glycerol or water that can be cross-linked with retention of the nanoporous structure, with one exhibiting a well-ordered Q phase with a wider phase window than the parent monomer.
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Affiliation(s)
- Patrick Li
- Department of Chemistry, University of Colorado, Boulder, CO 80309, USA.
| | - Maria I Reinhardt
- Department of Chemistry, University of Colorado, Boulder, CO 80309, USA.
| | - Samantha S Dyer
- Department of Chemistry, University of Colorado, Boulder, CO 80309, USA.
| | - Kara E Moore
- Department of Chemistry, University of Colorado, Boulder, CO 80309, USA.
| | - Omar Q Imran
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT 06510, USA
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Pennsylvania, PA 19104, USA
| | - Douglas L Gin
- Department of Chemistry, University of Colorado, Boulder, CO 80309, USA.
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9
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Imran OQ, Li P, Kim NK, Gin DL, Osuji CO. Stable cross-linked lyotropic gyroid mesophases from single-head/single-tail cross-linkable monomers. Chem Commun (Camb) 2021; 57:10931-10934. [PMID: 34596176 DOI: 10.1039/d1cc04211d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A single-head/single-tail surfactant with a polymerizable group at each end is presented as a new simplified motif for intrinsically cross-linkable, gyroid-phase lyotropic mesogens. The resulting nanoporous polymer networks exhibit excellent structural stability in various solvents and are capable of molecular size discrimination.
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Affiliation(s)
- Omar Q Imran
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT 06510, USA.,Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA.
| | - Patrick Li
- Department of Chemistry, University of Colorado, Boulder, CO 80309, USA
| | - Na Kyung Kim
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA.
| | - Douglas L Gin
- Department of Chemistry, University of Colorado, Boulder, CO 80309, USA
| | - Chinedum O Osuji
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA.
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10
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Mueller A. A Note about Crosslinking Density in Imprinting Polymerization. Molecules 2021; 26:5139. [PMID: 34500573 PMCID: PMC8434133 DOI: 10.3390/molecules26175139] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/16/2021] [Accepted: 08/18/2021] [Indexed: 11/17/2022] Open
Abstract
Imprinting polymerization is an exciting technique since it leads to specific binding sites, which are the basis of a variety of applications, such as sensors, detectors, and catalysts. The specific binding sites are created using templates and then fixing the structure of the binding site with crosslinking. The literature review of imprinting polymerizations shows that the crosslinking density governs the physical properties of the resulting molecularly imprinted polymer (MIP). It is also a factor governing the capacity and the selectivity of MIPs. Reviewing polymer science data and theory, the crosslinking density commonly used in MIP synthesis is unusually high. The data reviewed here suggest that more research is needed to determine the optimal crosslinking density for MIPs.
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Affiliation(s)
- Anja Mueller
- Department of Chemistry and Biochemistry, Central Michigan University, Mount Pleasant, MI 48859, USA
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11
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Ramakanth I, Kolenčík M, Rao MS, Sunil BR, Vijayasree U, Durgababu G, Devi SA, Šebesta M, Siva T. Tuning the Morphology and State of Aggregation of Fullerene C60 using Non-ionic Surfactants. COLLOID JOURNAL 2021. [DOI: 10.1134/s1061933x21040086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Takeuchi H, Ichikawa T. Creation of Gyroid Nanostructured Polymer Films from Lyotropic Liquid Crystals Containing a Polymerizable Ionic Liquid as a Solvent. CHEM LETT 2021. [DOI: 10.1246/cl.210021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hiroaki Takeuchi
- Department of Biotechnology, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Takahiro Ichikawa
- Department of Biotechnology, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
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Abstract
Biological membranes composed of a lipid bilayer and associated proteins work as a platform for highly selective and sensitive detection in nature. Substrate-supported lipid bilayers (SLBs) are a model system of the biological membrane that are mechanically stable, accessible to highly sensitive analytical techniques, and amenable to micro-fabrication, such as patterning. The surface of SLBs can effectively suppress the non-specific binding of proteins, and enhance selective detection by specific interactions. These features render SLBs highly attractive for the development of devices that utilize artificially mimicked cellular functions. Furthermore, SLBs can be combined with nanoscopic spaces, such as nano-channels and nano-pores, that can reduce the detection volume and suppress the non-specific background noise, enhancing the signal-to-background noise (S/B) ratio. SLBs therefore provide promising platforms for a wide range of biomedical and environmental analyses.
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Affiliation(s)
- Kenichi Morigaki
- Biosignal Research Center, Kobe University.,Graduate School of Agricultural Science, Kobe University
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14
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Hall AV, Musa OM, Hood DK, Apperley DC, Yufit DS, Steed JW. Alkali Metal Salts of 10,12-Pentacosadiynoic Acid and Their Dosimetry Applications. CRYSTAL GROWTH & DESIGN 2021. [PMID: 34054354 DOI: 10.1021/acs.cgd.1c00300] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Wide-dose-range 2D radiochromic films for radiotherapy, such as GAFchromic EBT, are based on the lithium salt of 10,12-pentacosadiynoic acid (Li-PCDA) as the photosensitive component. We show that there are two solid forms of Li-PCDA-a monohydrated form A and an anhydrous form B. The form used in commercial GAFchromic films is form A due to its short needle-shaped crystals, which provide favorable coating properties. Form B provides an enhanced photoresponse compared to that of form A, but adopts a long needle crystal morphology, which is difficult to process. The two forms were characterized by powder X-ray diffraction, Fourier transform infrared spectroscopy, CP-MAS 13C solid-state NMR spectroscopy, and thermogravimetric analysis. In sum, these data suggest a chelating bridging bidentate coordination mode for the lithium ions. The sodium salt of PCDA (Na-PCDA) is also reported, which is an ionic cocrystal with a formula of Na+PCDA-·3PCDA. The PCDA and PCDA- ligands display monodentate and bridging bidentate coordination to the sodium ion in contrast to the coordination sphere of the Li-PCDA forms. In contrast to its lithium analogues, Na-PCDA is photostable.
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Affiliation(s)
- Amy V Hall
- Department of Chemistry, Durham University, Lower Mountjoy, Stockton Road, Durham DH1 3LE, U.K
| | - Osama M Musa
- Ashland LLC, 1005 Route 202/206, Bridgewater, New Jersey 08807, United States
| | - David K Hood
- Ashland LLC, 1005 Route 202/206, Bridgewater, New Jersey 08807, United States
| | - David C Apperley
- Department of Chemistry, Durham University, Lower Mountjoy, Stockton Road, Durham DH1 3LE, U.K
| | - Dmitry S Yufit
- Department of Chemistry, Durham University, Lower Mountjoy, Stockton Road, Durham DH1 3LE, U.K
| | - Jonathan W Steed
- Department of Chemistry, Durham University, Lower Mountjoy, Stockton Road, Durham DH1 3LE, U.K
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15
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Hall AV, Yufit DS, Apperley DC, Senak L, Musa OM, Hood DK, Steed JW. The crystal engineering of radiation-sensitive diacetylene cocrystals and salts. Chem Sci 2020; 11:8025-8035. [PMID: 34094171 PMCID: PMC8163068 DOI: 10.1039/d0sc02540b] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 07/18/2020] [Indexed: 01/01/2023] Open
Abstract
In this work we develop photoreactive cocrystals/salts of a commercially-important diacetylene, 10,12-pentacosadiynoic acid (PCDA, 1) and report the first X-ray crystal structures of PCDA based systems. The topochemical reactivity of the system is modified depending on the coformer used and correlates with the structural parameters. Crystallisation of 1 with 4,4'-azopyridine (2), 4,4'-bipyridyl (3), and trans-1,2-bis(4-pyridyl)ethylene (4) results in unreactive 2 : 1 cocrystals or a salt in the case of 4,4'-bipiperidine (5). However, salt formation with morpholine (6), diethylamine (7), and n-butylamine (8), results in highly photoreactive salts 12·7 and 1·8 whose reactivity can be explained using topochemical criteria. The salt 1·6 is also highly photoreactive and is compared to a model morpholinium butanoate salt. Resonance Raman spectroscopy reveals structural details of the photopolymer including its conformational disorder in comparison to less photoactive alkali metal salts and the extent of solid state conversion can be monitored by CP-MAS NMR spectroscopy. We also report an unusual catalysis in which amine evaporation from photopolymerised PCDA ammonium salts effectively acts as a catalyst for polymerisation of PCDA itself. The new photoreactive salts exhibit more reactivity but decreased conjugation compared to the commercial lithium salt and are of considerable practical potential in terms of tunable colours and greater range in UV, X-ray, and γ-ray dosimetry applications.
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Affiliation(s)
- Amy V Hall
- Durham University, Department of Chemistry Lower Mountjoy, Stockton Road Durham DH1 3LE UK
| | - Dmitry S Yufit
- Durham University, Department of Chemistry Lower Mountjoy, Stockton Road Durham DH1 3LE UK
| | - David C Apperley
- Durham University, Department of Chemistry Lower Mountjoy, Stockton Road Durham DH1 3LE UK
| | - Larry Senak
- Ashland LLC 1005 Route 202/206 Bridgewater NJ 08807 USA
| | - Osama M Musa
- Ashland LLC 1005 Route 202/206 Bridgewater NJ 08807 USA
| | - David K Hood
- Ashland LLC 1005 Route 202/206 Bridgewater NJ 08807 USA
| | - Jonathan W Steed
- Durham University, Department of Chemistry Lower Mountjoy, Stockton Road Durham DH1 3LE UK
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16
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Salvati Manni L, Fong WK, Mezzenga R. Lipid-based mesophases as matrices for nanoscale reactions. NANOSCALE HORIZONS 2020; 5:914-927. [PMID: 32322863 DOI: 10.1039/d0nh00079e] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Lipidic mesophases are versatile bioorganic materials that have been effectively employed as nanoscale matrices for membrane protein crystallization, drug delivery and as food emulsifiers over the last 30 years. In this review, the focus is upon studies that have employed non-lamellar lipid mesophases as matrices for organic, inorganic and enzymatic reactions. The ability of lipidic mesophases to incorporate hydrophilic, amphiphilic and hydrophobic molecules, together with the high interfacial area of the lipidic cubic and inverse hexagonal phases has been exploited in heterogeneous catalysis as well as for enzyme immobilization. The unique nanostructure of these mesophases is the driving force behind their ability to act as templates for synthesis, resulting in the creation of highly ordered polymeric and inorganic materials with complex geometries.
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Affiliation(s)
- Livia Salvati Manni
- Department of Health Sciences and Technology, Swiss Federal Institute of Technology in Zurich, 8092 Zurich, Switzerland.
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17
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Schönemann E, Koc J, Aldred N, Clare AS, Laschewsky A, Rosenhahn A, Wischerhoff E. Synthesis of Novel Sulfobetaine Polymers with Differing Dipole Orientations in Their Side Chains, and Their Effects on the Antifouling Properties. Macromol Rapid Commun 2019; 41:e1900447. [DOI: 10.1002/marc.201900447] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 10/29/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Eric Schönemann
- Department of Chemistry Universität Potsdam Karl‐Liebknecht‐Str. 24‐25 14476 Potsdam‐Golm Germany
| | - Julian Koc
- Analytical Chemistry ‐ Biointerfaces Ruhr University Bochum 44780 Bochum Germany
| | - Nick Aldred
- School of Natural and Environmental Sciences Newcastle University Newcastle upon Tyne NE1 7RU UK
| | - Anthony S. Clare
- School of Natural and Environmental Sciences Newcastle University Newcastle upon Tyne NE1 7RU UK
| | - André Laschewsky
- Department of Chemistry Universität Potsdam Karl‐Liebknecht‐Str. 24‐25 14476 Potsdam‐Golm Germany
- Fraunhofer Institute of Applied Polymer Research IAP Geiselbergstr. 69 14476 Potsdam‐Golm Germany
| | - Axel Rosenhahn
- Analytical Chemistry ‐ Biointerfaces Ruhr University Bochum 44780 Bochum Germany
| | - Erik Wischerhoff
- Fraunhofer Institute of Applied Polymer Research IAP 14476 Potsdam‐Golm Germany
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18
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Fonseka M, Liang B, Orosz KS, Jones IW, Hall HK, Christie HS, Aspinwall CA, Saavedra SS. Nanodomain Formation in Planar Supported Lipid Bilayers Composed of Fluid and Polymerized Dienoyl Lipids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:12483-12491. [PMID: 31454251 PMCID: PMC7719349 DOI: 10.1021/acs.langmuir.9b02101] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Polymerization of synthetic phospholipid monomers has been widely used to enhance the stability of lipid membranes in applications such as membrane-based biosensing, where the inherent instability of fluid-phase lipid bilayers can be problematic. However, lipid polymerization typically decreases membrane fluidity, which may be required to maintain the activity of reconstituted integral proteins and peptides. Prior work has shown that a bilayer composed of binary mixtures of poly(lipid) and fluid lipid exhibits enhanced stability and supports the function of incorporated biomolecules. This work examines the structural basis of these findings using planar supported lipid bilayers (PSLBs) composed of binary mixtures of a polymerizable lipid, 1,2-bis[10-(2',4'-hexadienoloxy)decanoyl]-sn-glycero-3-phosphocholine (bis-SorbPC), and a nonpolymerizable lipid, 1,2-diphytanoyl-sn-glycero-3-phosphocholine (DPhPC). Fluorescence recovery after photobleaching (FRAP) measurements showed that long-range lateral diffusion was minimally affected when the poly(lipid) mole ratio was ≤0.7. Atomic force microscopy, used to examine phase segregation in these PSLBs, showed that DPhPC forms a continuous lipid matrix that is 0.2-0.4 nm thicker than the island-like poly(bis-SorbPC) domains, with lateral dimensions of ≤200 nm. The nanoscale phase segregation allows for long-range lateral diffusion of lipid probes in the DPhPC matrix. The combination of fluidity and stability in these materials should make them useful in membrane-based biosensing applications.
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Affiliation(s)
- Malithi Fonseka
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, 85721, USA
| | - Boying Liang
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, 85721, USA
| | - Kristina S. Orosz
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, 85721, USA
| | - Ian W. Jones
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, 85721, USA
| | - H. K. Hall
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, 85721, USA
| | - Hamish S. Christie
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, 85721, USA
| | - Craig A. Aspinwall
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, 85721, USA
- BIO5 Institute and Department of Biomedical Engineering, University of Arizona, Tucson, AZ, 85721, USA
| | - S. Scott Saavedra
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, 85721, USA
- BIO5 Institute and Department of Biomedical Engineering, University of Arizona, Tucson, AZ, 85721, USA
- Author to whom correspondence should be addressed.
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19
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Schönemann E, Laschewsky A, Wischerhoff E, Koc J, Rosenhahn A. Surface Modification by Polyzwitterions of the Sulfabetaine-Type, and Their Resistance to Biofouling. Polymers (Basel) 2019; 11:E1014. [PMID: 31181764 PMCID: PMC6631746 DOI: 10.3390/polym11061014] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 06/04/2019] [Accepted: 06/05/2019] [Indexed: 12/22/2022] Open
Abstract
Films of zwitterionic polymers are increasingly explored for conferring fouling resistance to materials. Yet, the structural diversity of polyzwitterions is rather limited so far, and clear structure-property relationships are missing. Therefore, we synthesized a series of new polyzwitterions combining ammonium and sulfate groups in their betaine moieties, so-called poly(sulfabetaine)s. Their chemical structures were varied systematically, the monomers carrying methacrylate, methacrylamide, or styrene moieties as polymerizable groups. High molar mass homopolymers were obtained by free radical polymerization. Although their solubilities in most solvents were very low, brine and lower fluorinated alcohols were effective solvents in most cases. A set of sulfabetaine copolymers containing about 1 mol % (based on the repeat units) of reactive benzophenone methacrylate was prepared, spin-coated onto solid substrates, and photo-cured. The resistance of these films against the nonspecific adsorption by two model proteins (bovine serum albumin-BSA, fibrinogen) was explored, and directly compared with a set of references. The various polyzwitterions reduced protein adsorption strongly compared to films of poly(nbutyl methacrylate) that were used as a negative control. The poly(sulfabetaine)s showed generally even somewhat higher anti-fouling activity than their poly(sulfobetaine) analogues, though detailed efficacies depended on the individual polymer-protein pairs. Best samples approach the excellent performance of a poly(oligo(ethylene oxide) methacrylate) reference.
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Affiliation(s)
- Eric Schönemann
- Department of Chemistry, University Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam-Golm, Germany.
| | - André Laschewsky
- Department of Chemistry, University Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam-Golm, Germany.
- Fraunhofer Institute of Applied Polymer Research IAP, 14476 Potsdam-Golm, Germany.
| | - Erik Wischerhoff
- Fraunhofer Institute of Applied Polymer Research IAP, 14476 Potsdam-Golm, Germany.
| | - Julian Koc
- Analytical Chemistry - Biointerfaces, Ruhr University Bochum, 44780 Bochum, Germany.
| | - Axel Rosenhahn
- Analytical Chemistry - Biointerfaces, Ruhr University Bochum, 44780 Bochum, Germany.
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20
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Callens M, Beltrami M, D’Agostino E, Pfeiffer H, Verellen D, Paradossi G, Van Den Abeele K. The photopolymerization of DC8,9PC in microbubbles. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.01.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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21
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Xiao Y, Li YM, Wang HY, Zhao YF, Sun L, Zhao B, Zhang X. Investigation of Spontaneous Polycondensation of N-(O, O-Ditetradecyl) Phosphorylalanine in Highly Ordered Films by Ftir Spectroscopy. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/030823404323000521] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Spontaneous polycondensation to polypeptides on both cast films and Langmuir-Blodgett films (LB films) of N-(O, O-ditetradecyl)phosphorylalanine (DNTP-L-Ala) was studied by FTIR transmission spectroscopy.
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Affiliation(s)
- Yi Xiao
- Key Laboratory for Bioorganic Phosphorus Chemistry of Education Ministry, Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Yan-Mei Li
- Key Laboratory for Bioorganic Phosphorus Chemistry of Education Ministry, Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Hai-Yan Wang
- Key Laboratory for Bioorganic Phosphorus Chemistry of Education Ministry, Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Yu-Fen Zhao
- Key Laboratory for Bioorganic Phosphorus Chemistry of Education Ministry, Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Li Sun
- Key Laboratory for Supramolecular Structure and Materials of Education Ministry, College of Chemistry, Jilin University, Changchun 130023, P. R. China
| | - Bing Zhao
- Key Laboratory for Supramolecular Structure and Materials of Education Ministry, College of Chemistry, Jilin University, Changchun 130023, P. R. China
| | - Xi Zhang
- Key Laboratory for Supramolecular Structure and Materials of Education Ministry, College of Chemistry, Jilin University, Changchun 130023, P. R. China
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22
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Laschewsky A, Rosenhahn A. Molecular Design of Zwitterionic Polymer Interfaces: Searching for the Difference. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:1056-1071. [PMID: 30048142 DOI: 10.1021/acs.langmuir.8b01789] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The widespread occurrence of zwitterionic compounds in nature has incited their frequent use in designing biomimetic materials. Therefore, zwitterionic polymers are a thriving field. A particular interest for this particular polymer class has currently focused on their use in establishing neutral, low-fouling surfaces. After highlighting strategies to prepare model zwitterionic surfaces as well as those that are more suitable for practical purposes relying strongly on radical polymerization methods, we present recent efforts to diversify the structure of the hitherto quite limited variety of zwitterionic monomers and of the derived polymers. We identify key structural variables, consider their influence on essential properties such as overall hydrophilicity and long-term stability, and discuss promising targets for the synthesis of new variants.
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Affiliation(s)
- André Laschewsky
- Institut für Chemie, Universität Potsdam , Karl-Liebknechtstr. 24-25 , 14476 Potsdam-Golm , Germany
- Fraunhofer Institute for Applied Polymer Research IAP , Geiselbergstr. 69 , 14476 Potsdam-Golm , Germany
| | - Axel Rosenhahn
- Analytische Chemie-Biogrenzflächen , Ruhr-Universität Bochum , Universitätsstr. 150 NC , 44801 Bochum , Germany
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23
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Sen S, Paul BK, Guchhait N. Interaction of a phenazinium-based photosensitizer with surface active ionic liquid micelles: Investigating the effect of cyclodextrins on SAIL micelles. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.11.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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24
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Jia X, Zhu M, Bian Q, Yue B, Zhuang Y, Wu B, Yu L, Ding J, Zhang J, Zhu L. Precisely Controlling Dimerization and Trimerization in Topochemical Reaction Templated by Biomacromolecules. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01824] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaoyong Jia
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, P. R. China
| | - Mingjie Zhu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, P. R. China
| | - Qiao Bian
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, P. R. China
| | - Bingbing Yue
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, P. R. China
| | - Yaping Zhuang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, P. R. China
| | - Bin Wu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, P. R. China
| | - Lin Yu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, P. R. China
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, P. R. China
| | - Junji Zhang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science & Technology, Shanghai 200237, P. R. China
| | - Liangliang Zhu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, P. R. China
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25
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Kumar A, Pisula W, Müllen K. Molecular self-assembly and morphology induction in high-performance aromatic phosphonated block copolymers. J Appl Polym Sci 2018. [DOI: 10.1002/app.46750] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Avneesh Kumar
- Institute of Organic Chemistry; Technical University of Darmstadt, Alarich-Weiss-Street 4; Darmstadt 64287 Germany
| | - Wojciech Pisula
- Department of Molecular Physics, Faculty of Chemistry; Lodz University of Technology, Zeromskiego 116; 90-924 Lodz Poland
- Max Planck Institute for Polymer Research, Ackermannweg 10; Mainz 55128 Germany
| | - Klaus Müllen
- Max Planck Institute for Polymer Research, Ackermannweg 10; Mainz 55128 Germany
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26
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Chun MJ, Choi YK, Ahn DJ. Formation of nanopores in DiynePC-DPPC complex lipid bilayers triggered by on-demand photo-polymerization. RSC Adv 2018; 8:27988-27994. [PMID: 35542696 PMCID: PMC9084258 DOI: 10.1039/c8ra04908d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 07/20/2018] [Indexed: 11/21/2022] Open
Abstract
Vesicles have unique characteristics that enable the release of drugs as well as encapsulation while maintaining biocompatibility. A photo-polymerizable liposome composed of 1,2-bis(10,12-tricosadiynoyl)-sn-glycero-3-phosphocholine (23:2 DiynePC) has been investigated as vehicles for triggered delivery of drugs to cells. In this study, we confirmed for the first time that supported lipid bilayers (SLBs) prepared with a 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC)/DiynePC mixture generated pores ca. 100-300 nm in size on the membrane after UV polymerization. This direct observation was done by analyzing the SLBs formed with the DPPC/DiynePC mixture by employing atomic force microscopy (AFM) in a liquid environment. However, photo-polymerization did not occur in the 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC)/DiynePC mixed bilayer and pores were not formed. A theoretical study was performed to explore the phase behavior of the lipid mixtures. A coarse-grained model of DiynePC was developed that is comparable with the Martini force field; the parameters were validated against atomistic simulations. Transition from fluidic to gel phase was observed only when DiynePC was mixed with DPPC, whereas the DOPC mixture remained fluidic over the entire domain. This implies a correlation between the formation of DiynePC-rich gel phase domains and the generation of pores after polymerization. The size of the pores were found to be controlled by the amount of polymerizable lipid which results in higher release rate of encapsulated calcein from the vesicles with larger pores.
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Affiliation(s)
- Min Jung Chun
- Department of Chemical and Biological Engineering, Korea University Seoul 02841 Republic of Korea
| | - Yeol Kyo Choi
- Department of Chemical and Biological Engineering, Korea University Seoul 02841 Republic of Korea
| | - Dong June Ahn
- Department of Chemical and Biological Engineering, Korea University Seoul 02841 Republic of Korea
- KU-KIST Graduate School of Converging Science and Technology, Korea University Seoul 02841 Republic of Korea
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27
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Kumar A, Hertel B, Müllen K. Self-Assembly and Responsive Behavior of Poly(peptide)-Based Copolymers. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201800101] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Avneesh Kumar
- Institute of Organic Chemistry; Technical University of Darmstadt; L2/02, Room No. 554, Alarich-Weiss-Str. 4 Darmstadt 64287 Germany
| | - Brigitte Hertel
- Institute of Biology; TU Darmstadt; Schnittspahnstrasse 3 64287 Darmstadt Germany
| | - Klaus Müllen
- Max Planck Institute for Polymer ResearchMainz; Ackermannweg 10 55128 Mainz Germany
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28
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Chakraborty S, Ramkumar SG, Ramakrishnan S. Amphiphilic Double-Brush Polymers Based on Itaconate Diesters. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00815] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Saheli Chakraborty
- Department of Inorganic and
Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - S. G. Ramkumar
- Department of Inorganic and
Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - S. Ramakrishnan
- Department of Inorganic and
Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
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29
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Proton conductive polymers obtained by in-situ polymerization of a mesomorphic benzimidazole monomer in smectic A, nematic and isotropic phases. REACT FUNCT POLYM 2017. [DOI: 10.1016/j.reactfunctpolym.2017.04.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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30
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Sahiner N, Demirci S. Can PEI microgels become biocompatible upon betainization? MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 77:642-648. [PMID: 28532075 DOI: 10.1016/j.msec.2017.03.285] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 03/30/2017] [Indexed: 10/19/2022]
Abstract
Polyethylene imine (PEI) microgels prepared via micro emulsion polymerization technique were treated with 1,3-propane sultone to obtained betainized PEI (b-PEI) microgels. The betainization reaction generated zwitterions on PEI microgel that are positive charges from quarternized amine groups of PEI, and the newly formed negative charges from SO3- groups from the modifying agent, 1,3-propane sultone offered interesting properties. The smaller size of b-PEI microgels that are obtained by simple filtration were increased with betainization from 512±14 to 1114±86nm. Also, the betainization of PEI microgel provided negative zeta potential values at high pH values as 9, 10, 11, and 12. Moreover, the b-PEI microgels render more effective dye absorption capabilities for anionic or cationic organic dyes such as Methyl Orange (MO) and Methylene Blue (MB) separately with the significant increase dye adsorption capacity of 354±31 and 274±19mg/g respectively. Moreover, antibacterial properties of b-PEI microgels tested on the E. coli ATCC 8739 and S. aureus ATCC 6538 were diminished whereas bare PEI has low MIC and MBC values (strong antibacterial properties). Interestingly, the PEI microgels known for their strong antibacterial and toxic nature found to be biocompatible upon betainization reaction. The biocompatibility test were carried with WST-1 tests and double staining methods. The cytotoxicity, apoptotic and necrotic cell tests were shown that PEI microgels induce no cytotoxicity up to 400μg/mL whereas PEI microgels possessed 50% toxicity at this concentration, suggesting that b-PEI microgels become biocompatible upon betainization with, 3-propane sultone.
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Affiliation(s)
- Nurettin Sahiner
- Faculty of Science & Arts, Chemistry Department, Canakkale Onsekiz Mart University, Terzioglu Campus, 17100 Canakkale, Turkey; Nanoscience and Technology Research and Application Center (NANORAC), Canakkale Onsekiz Mart University, Terzioglu Campus, 17100 Canakkale, Turkey.
| | - Sahin Demirci
- Faculty of Science & Arts, Chemistry Department, Canakkale Onsekiz Mart University, Terzioglu Campus, 17100 Canakkale, Turkey
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31
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Mane SR, Sathyan A, Shunmugam R. Synthesis of Norbornene Derived Helical Copolymer by Simple Molecular Marriage Approach to Produce Smart Nanocarrier. Sci Rep 2017; 7:44857. [PMID: 28327656 PMCID: PMC5361182 DOI: 10.1038/srep44857] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 02/14/2017] [Indexed: 12/28/2022] Open
Abstract
A novel library of norbornene derived helical copolymer has been synthesized through the coupling of two homopolymers via Molecular Marriage Approach. The helicity is governed by the non-covalent interactions like hydrogen bonding, π-π stacking and the influence of hydrophobic and hydrophilic motifs. The detailed characterization of the copolymer (Copoly 1) has been provided and the super structures are confirmed through dynamic light scattering (DLS), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The observed size of the aggregates was about 200 nm. The density functional theory (DFT) is favorably supported for the formation of proposed structure of Copoly 1. Circular dichroism (CD) measurement has confirmed the one handed helical structure of the copolymer. Reservoir capability of this pH responsive polymer (Copoly 1) to encapsulate anti-cancer drug doxorubicin (DOX) warrants its potential applications in the field of bio-medical sciences.
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Affiliation(s)
- Shivshankar R. Mane
- Polymer Research Centre, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata (IISER-K), Mohanpur 741246, Kolkata, India
| | - Ashlin Sathyan
- Polymer Research Centre, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata (IISER-K), Mohanpur 741246, Kolkata, India
| | - Raja Shunmugam
- Polymer Research Centre, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata (IISER-K), Mohanpur 741246, Kolkata, India
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32
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Hamasaka G, Muto T, Andoh Y, Fujimoto K, Kato K, Takata M, Okazaki S, Uozumi Y. Detailed Structural Analysis of a Self-Assembled Vesicular Amphiphilic NCN-Pincer Palladium Complex by Using Wide-Angle X-Ray Scattering and Molecular Dynamics Calculations. Chemistry 2017; 23:1291-1298. [PMID: 27739119 DOI: 10.1002/chem.201603494] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2016] [Indexed: 11/09/2022]
Abstract
Wide-angle X-ray scattering experiments and all-atomistic molecular dynamics calculations were performed to elucidate the detailed structure of bilayer vesicles constructed by self-assembly of an amphiphilic palladium NCN-pincer complex. We found an excellent agreement between the experimental and calculated X-ray spectra, and between the membrane thickness determined from a TEM image and that calculated from an electron-density profile, which indicated that the calculated structure was highly reliable. The analysis of the simulated bilayer structure showed that in general the membrane was softer than other phospholipid bilayer membranes. In this bilayer assemblage, the degree of alignment of complex molecules in the bilayer membrane was quite low. An analysis of the electron-density profile shows that the bilayer assemblage contains a space through which organic molecules can exit. Furthermore, the catalytically active center is near this space and is easily accessible by organic molecules, which permits the bilayer membrane to act as a nanoreactor. The free energy of permeation of water through the bilayer membrane of the amphiphilic complex was 12 kJ mol-1 , which is much lower than that for phospholipid bilayer membranes in general. Organic molecules are expected to pass though the bilayer membrane. The self-assembled vesicles were shown to be catalytically active in a Miyaura-Michael reaction in water.
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Affiliation(s)
- Go Hamasaka
- Institute for Molecular Science, Myodaiji, Okazaki, 444-8787, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Myodaiji, Okazaki, 444-8787, Japan
| | - Tsubasa Muto
- Institute for Molecular Science, Myodaiji, Okazaki, 444-8787, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Myodaiji, Okazaki, 444-8787, Japan
| | - Yoshimichi Andoh
- High-Performance Computation Section, Center for Computational Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Kazushi Fujimoto
- Department of Applied Chemistry, Faculty of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Kenichi Kato
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, 679-5148, Japan
| | - Masaki Takata
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, 679-5148, Japan
| | - Susumu Okazaki
- Department of Applied Chemistry, Faculty of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Yasuhiro Uozumi
- Institute for Molecular Science, Myodaiji, Okazaki, 444-8787, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Myodaiji, Okazaki, 444-8787, Japan.,RIKEN Center for Sustainable Resource Science, Wako, 351-0198, Japan.,JST-CREST and JST-ACCEL, Myodaiji, Okazaki, 444-8787, Japan
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33
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Kim H, Ryu JH, Kim HK, Chang JY. A versatile platform for lanthanide(iii)-containing organogelators: fabrication of the Er(iii)-incorporated polymer nanocomposite from an organogel template. NEW J CHEM 2017. [DOI: 10.1039/c7nj02221b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An Er(iii)-containing polymer nanocomposite that showed an enhanced NIR emission was prepared from an organogel template via post-gelation polymerisation.
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Affiliation(s)
- Hyungwoo Kim
- School of Polymer Science and Engineering
- Chonnam National University
- Gwangju 61186
- Korea
| | - Jung Ho Ryu
- Department of Advanced Materials Chemistry and WCU Center for Next Generation Photovoltaic Systems
- Korea University
- Jochiwon
- Republic of Korea
| | - Hwan Kyu Kim
- Department of Advanced Materials Chemistry and WCU Center for Next Generation Photovoltaic Systems
- Korea University
- Jochiwon
- Republic of Korea
| | - Ji Young Chang
- Department of Materials Science and Engineering
- College of Engineering
- Seoul National University
- Seoul 08826
- Korea
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34
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Robertson LA, Gin DL. Effect of an n-Alkoxy-2,4-hexadiene Polymerizable Tail System on the Mesogenic Properties and Cross-Linking of Mono-Imidazolium-Based Ionic Liquid Crystal Monomers. ACS Macro Lett 2016; 5:844-848. [PMID: 35614758 DOI: 10.1021/acsmacrolett.6b00315] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We demonstrate that an ether-based n-alkoxy-2,4-hexadiene polymerizable tail system is an effective and modular alternative to traditional ester-based polymerizable tail groups (i.e., acrylate, methacrylate, sorbate) and alkyl-1,3-diene tails for the design of radically polymerized ionic liquid crystal (ILC) monomers. Several series of nonsymmetric 1-vinylimidazolium-bromide-based ILC monomers containing these different polymerizable tail systems were synthesized and compared for their ability to form thermotropic liquid crystal (TLC) phases and to be photo-cross-linked with TLC phase retention. The n-alkoxy-2,4-hexadiene tail system was found to be more favorable/conducive to TLC phase formation than acrylate, methacrylate, and sorbate tails. It was more similar to the alkyl-1,3-diene tail system in terms of its more favorable effect on TLC behavior; however, it is more modular/easier to synthesize, more resistant to thermal Diels-Alder side reaction, and more isomerically pure, making it better for ILC monomer design. Also, the n-alkoxy-2,4-hexadiene tail system was found to be very amenable to radical photo-cross-linking with TLC phase retention. To demonstrate this feature, an example cross-linkable ILC monomer with this tail system was synthesized and polymerized in the smectic A TLC phase, and the monomer and polymerized material were characterized for their ionic conductivity behavior.
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Affiliation(s)
- Lily A. Robertson
- Department of Chemistry
and Biochemistry and ‡Department of Chemical and Biological
Engineering, University of Colorado, Boulder, Colorado 80309, United States
| | - Douglas L. Gin
- Department of Chemistry
and Biochemistry and ‡Department of Chemical and Biological
Engineering, University of Colorado, Boulder, Colorado 80309, United States
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35
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Zhao Y. Surface-Cross-Linked Micelles as Multifunctionalized Organic Nanoparticles for Controlled Release, Light Harvesting, and Catalysis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:5703-13. [PMID: 27181610 PMCID: PMC4907858 DOI: 10.1021/acs.langmuir.6b01162] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 05/05/2016] [Indexed: 05/30/2023]
Abstract
Surfactant micelles are dynamic entities with a rapid exchange of monomers. By "clicking" tripropargylammonium-containing surfactants with diazide cross-linkers, we obtained surface-cross-linked micelles (SCMs) that could be multifunctionalized for different applications. They triggered membrane fusion through tunable electrostatic interactions with lipid bilayers. Antenna chromophores could be installed on them to create artificial light-harvesting complexes with efficient energy migration among tens to hundreds of chromophores. When cleavable cross-linkers were used, the SCMs could break apart in response to redox or pH signals, ejecting entrapped contents quickly as a result of built-in electrostatic stress. They served as caged surfactants whose surface activity was turned on by environmental stimuli. They crossed cell membranes readily. Encapsulated fluorophores showed enhanced photophysical properties including improved quantum yields and greatly expanded Stokes shifts. Catalytic groups could be installed on the surface or in the interior, covalently attached or physically entrapped. As enzyme mimics, the SCMs enabled rational engineering of the microenvironment around the catalysts to afford activity and selectivity not possible with conventional catalysts.
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Affiliation(s)
- Yan Zhao
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States
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36
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Goossens K, Lava K, Bielawski CW, Binnemans K. Ionic Liquid Crystals: Versatile Materials. Chem Rev 2016; 116:4643-807. [PMID: 27088310 DOI: 10.1021/cr400334b] [Citation(s) in RCA: 426] [Impact Index Per Article: 53.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This Review covers the recent developments (2005-2015) in the design, synthesis, characterization, and application of thermotropic ionic liquid crystals. It was designed to give a comprehensive overview of the "state-of-the-art" in the field. The discussion is focused on low molar mass and dendrimeric thermotropic ionic mesogens, as well as selected metal-containing compounds (metallomesogens), but some references to polymeric and/or lyotropic ionic liquid crystals and particularly to ionic liquids will also be provided. Although zwitterionic and mesoionic mesogens are also treated to some extent, emphasis will be directed toward liquid-crystalline materials consisting of organic cations and organic/inorganic anions that are not covalently bound but interact via electrostatic and other noncovalent interactions.
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Affiliation(s)
- Karel Goossens
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS) , Ulsan 689-798, Republic of Korea.,Department of Chemistry, KU Leuven , Celestijnenlaan 200F, P.O. Box 2404, B-3001 Heverlee, Belgium
| | - Kathleen Lava
- Department of Chemistry, KU Leuven , Celestijnenlaan 200F, P.O. Box 2404, B-3001 Heverlee, Belgium.,Department of Organic and Macromolecular Chemistry, Ghent University , Krijgslaan 281 S4, B-9000 Ghent, Belgium
| | - Christopher W Bielawski
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS) , Ulsan 689-798, Republic of Korea.,Department of Chemistry and Department of Energy Engineering, Ulsan National Institute of Science and Technology (UNIST) , Ulsan 689-798, Republic of Korea
| | - Koen Binnemans
- Department of Chemistry, KU Leuven , Celestijnenlaan 200F, P.O. Box 2404, B-3001 Heverlee, Belgium
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Orosz KS, Jones IW, Keogh JP, Smith CM, Griffin KR, Xu J, Comi TJ, Hall HK, Saavedra SS. Photopolymerization of Dienoyl Lipids Creates Planar Supported Poly(lipid) Membranes with Retained Fluidity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:1577-84. [PMID: 26794208 PMCID: PMC4755918 DOI: 10.1021/acs.langmuir.5b03437] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Polymerization of substrate-supported bilayers composed of dienoylphosphatidylcholine (PC) lipids is known to greatly enhance their chemical and mechanical stability; however, the effects of polymerization on membrane fluidity have not been investigated. Here planar supported lipid bilayers (PSLBs) composed of dienoyl PCs on glass substrates were examined to assess the degree to which UV-initiated polymerization affects lateral lipid mobility. Fluorescence recovery after photobleaching (FRAP) was used to measure the diffusion coefficients (D) and mobile fractions of rhodamine-DOPE in unpolymerized and polymerized PSLBs composed of bis-sorbyl phosphatidylcholine (bis-SorbPC), mono-sorbyl-phosphatidylcholine (mono-SorbPC), bis-dienoyl-phosphatidylcholine (bis-DenPC), and mono-dienoyl phosphatidylcholine (mono-DenPC). Polymerization was performed in both the Lα and Lβ phase for each lipid. In all cases, polymerization reduced membrane fluidity; however, measurable lateral diffusion was retained which is attributed to a low degree of polymerization. The D values for sorbyl lipids were less than those of the denoyl lipids; this may be a consequence of the distal location of polymerizable group in the sorbyl lipids which may facilitate interleaflet bonding. The D values measured after polymerization were 0.1-0.8 of those measured before polymerization, a range that corresponds to fluidity intermediate between that of a Lα phase and a Lβ phase. This D range is comparable to ratios of D values reported for liquid-disordered (Ld) and liquid-ordered (Lo) lipid phases and indicates that the effect of UV polymerization on lateral diffusion in a dienoyl PSLB is similar to the transition from a Ld phase to a Lo phase. The partial retention of fluidity in UV-polymerized PSLBs, their enhanced stability, and the activity of incorporated transmembrane proteins and peptides is discussed.
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Affiliation(s)
- Kristina S. Orosz
- Department of Chemistry and Biochemistry, University of Arizona, 1306 East University Boulevard, Tucson, AZ 85721
| | - Ian W. Jones
- Department of Chemistry and Biochemistry, University of Arizona, 1306 East University Boulevard, Tucson, AZ 85721
| | - John P. Keogh
- Department of Chemistry and Biochemistry, University of Arizona, 1306 East University Boulevard, Tucson, AZ 85721
| | - Christopher M. Smith
- Department of Chemistry and Biochemistry, University of Arizona, 1306 East University Boulevard, Tucson, AZ 85721
| | - Kaitlyn R. Griffin
- Department of Chemistry and Biochemistry, University of Arizona, 1306 East University Boulevard, Tucson, AZ 85721
| | - Juhua Xu
- Department of Chemistry and Biochemistry, University of Arizona, 1306 East University Boulevard, Tucson, AZ 85721
| | - Troy J. Comi
- Department of Chemistry and Biochemistry, University of Arizona, 1306 East University Boulevard, Tucson, AZ 85721
| | - H. K. Hall
- Department of Chemistry and Biochemistry, University of Arizona, 1306 East University Boulevard, Tucson, AZ 85721
| | - S. Scott Saavedra
- Department of Chemistry and Biochemistry, University of Arizona, 1306 East University Boulevard, Tucson, AZ 85721
- BIO5 Institute, University of Arizona, 1306 East University Boulevard, Tucson, AZ 85721
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38
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Zou H, Sun H, Wang L, Zhao L, Li J, Dong Z, Luo Q, Xu J, Liu J. Construction of a smart temperature-responsive GPx mimic based on the self-assembly of supra-amphiphiles. SOFT MATTER 2016; 12:1192-1199. [PMID: 26616916 DOI: 10.1039/c5sm02074c] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Glutathione peroxidase (GPx) is a major defense against hydroperoxides as a kind of seleno-enzyme that protects cells from oxidative damage. A supramolecular vesicle with controllable GPx activity and morphology has been successfully constructed by the self-assembly of supra-amphiphiles formed by host-guest recognition between cyclodextrin and adamantane derivatives. By introducing thermosensitive poly(N-isopropylacrylamide) (PNIPAM) scaffolds and the catalytic moiety selenium into adamantane and cyclodextrin, respectively, the complex of catalysis-functionalized cyclodextrin with thermosensitivity-functionalized adamantane directed the formation of a supramolecular vesicle which acted as a GPx mimic at 37 °C. The self-assembled nanoenzyme exhibited an obvious temperature responsive characteristic and high GPx-like catalytic activity promoting the reduction of hydrogen peroxide (H2O2) with glutathione (GSH) as the reducing substrate at 37 °C. However, the vesicle disassembled when the temperature decreased to 25 °C due to the transition of PNIPAM between the coil and the globule. Interestingly, the catalytic activity changed along with the transformation of morphologies. The vesicle structure self-assembled at 37 °C provided the favorable microenvironment for the enzymatic reaction, hence we successfully developed a temperature-responsive nanoenzyme model. Moreover, the catalytic activity of the thermosensitive GPx mimic exhibited excellent reversibility and typical saturation kinetics behaviour similar to a natural enzyme catalyst. It is assumed that the proposed GPx model not only has remarkable advantages such as easy functionalization and facile preparation but also provided a new way to develop intelligent responsive materials.
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Affiliation(s)
- Huixin Zou
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China.
| | - Hongcheng Sun
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China.
| | - Liang Wang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China.
| | - Linlu Zhao
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China.
| | - Jiaxi Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China.
| | - Zeyuan Dong
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China.
| | - Quan Luo
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China.
| | - Jiayun Xu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China.
| | - Junqiu Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China.
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39
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Baek S, Dinh Phan M, Lee J, Shin K. Packing effects on polymerization of diacetylene lipids in liposomes and monolayers matrices. Polym J 2016. [DOI: 10.1038/pj.2015.136] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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40
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Ikeda A, Ashizawa K, Tsuchiya Y, Ueda M, Sugikawa K. Formation of lipid membrane-incorporated small π-molecules bearing hydrophilic groups. RSC Adv 2016. [DOI: 10.1039/c6ra18635a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Lipid membrane-incorporated π-conjugated guest molecules (LMIGs) have been classified into four categories, including stable LMIGs, the precipitation or dissolution of some of the guest molecules from the LMIGs and the formation of small aggregates.
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Affiliation(s)
- Atsushi Ikeda
- Department of Applied Chemistry
- Graduate School of Engineering
- Hiroshima University
- Higashi-Hiroshima 739-8527
- Japan
| | - Kengo Ashizawa
- Department of Applied Chemistry
- Graduate School of Engineering
- Hiroshima University
- Higashi-Hiroshima 739-8527
- Japan
| | - Yuki Tsuchiya
- Department of Applied Chemistry
- Graduate School of Engineering
- Hiroshima University
- Higashi-Hiroshima 739-8527
- Japan
| | - Masafumi Ueda
- Department of Applied Chemistry
- Graduate School of Engineering
- Hiroshima University
- Higashi-Hiroshima 739-8527
- Japan
| | - Kouta Sugikawa
- Department of Applied Chemistry
- Graduate School of Engineering
- Hiroshima University
- Higashi-Hiroshima 739-8527
- Japan
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41
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Yang J, Shao L, Yu G. Construction of pillar[6]arene-based CO2 and UV dual-responsive supra-amphiphile and application in controlled self-assembly. Chem Commun (Camb) 2016; 52:3211-4. [DOI: 10.1039/c5cc10617f] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A gas and photo dual-responsive host–guest recognition was established in an aqueous medium. This recognition motif was further applied for the construction of a supra-amphiphile, which reversibly self-assembled into vesicles upon UV/vis irradiation or bubbling with N2/CO2.
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Affiliation(s)
- Jie Yang
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Li Shao
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Guocan Yu
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
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42
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Ikeda A, Funada R, Sugikawa K. Different stabilities of liposomes containing saturated and unsaturated lipids toward the addition of cyclodextrins. Org Biomol Chem 2016; 14:5065-72. [PMID: 27181919 DOI: 10.1039/c6ob00535g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The liposomal collapse resulting from the addition of heptakis(2,6-di-O-methyl)cyclodextrin was more difficult to observe in the presence of unsaturated lipids compared to saturated lipids.
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Affiliation(s)
- Atsushi Ikeda
- Department of Applied Chemistry
- Graduate School of Engineering
- Hiroshima University
- Higashi-Hiroshima 739-8527
- Japan
| | - Rikushi Funada
- Department of Applied Chemistry
- Graduate School of Engineering
- Hiroshima University
- Higashi-Hiroshima 739-8527
- Japan
| | - Kouta Sugikawa
- Department of Applied Chemistry
- Graduate School of Engineering
- Hiroshima University
- Higashi-Hiroshima 739-8527
- Japan
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43
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Monitoring the Competence of a New Keto-tetrahydrocarbazole Based Fluorosensor Under Homogeneous, Micro-Heterogeneous and Serum Albumin Environments. J Fluoresc 2015; 25:1931-49. [PMID: 26489935 DOI: 10.1007/s10895-015-1685-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 09/28/2015] [Indexed: 10/22/2022]
Abstract
We present here a detailed photophysical study of a recently synthesised fluorophore 8-methyl-8,9-dihydro-5H-[1,3]dioxolo[4,5-b]carbazol-6(7H)-one. This is a synthetic precursor of bio-active carbazole skeleton Clausenalene. Spectroscopic investigation of the fluorophore has been carried out in different protic and aprotic solvents, as well as in binary solvent mixtures, using absorption, steady-state and time-resolved fluorescence techniques. This fluorophore is particularly responsive to the hydrogen bonding nature as well as polarity of the solvent molecules. When considered in micelles and β-cyclodextrin, this behaves as a reporter of its immediate microenvironment. Steady state and time resolved fluorometric and circular dichroism techniques have been used to explore the binding interaction of the fluorophore with transport proteins, bovine serum albumin and human serum albumin. The probable binding sites of the fluorophore in the proteinous environments have been evaluated from fluorescence resonance energy transfer study. Laser flash photolysis experiments also have been performed to observe the triplet excited state interaction between the fluorophore and albumin proteins.
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44
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Uda RM, Nishimoto N, Yamamoto M. Inter-vesicle polymerization using nonionic oxyethylene-hydrogenated castor oil. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.04.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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45
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Peng S, Wang K, Guo DS, Liu Y. Supramolecular polymeric vesicles formed by p-sulfonatocalix[4]arene and chitosan with multistimuli responses. SOFT MATTER 2015; 11:290-296. [PMID: 25408541 DOI: 10.1039/c4sm02170c] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Supramolecular polymeric vesicles are constructed by the complexation of p-sulfonatocalix[4]arene and chitosan, where the multivalent electrostatic interactions between the anionic sulfonate tetramer and cationic polyammoniums served as the dominant driving force. The supra-amphiphilic assemblies are disassembled upon exposure to a pH stimulus since the partial deprotonation of chitosan accompanied by a pH increase. Adding a competitive guest can also disrupt the assembly, representing the host-guest inclusion response. Interestingly, an abnormal temperature-response is observed, possibly as a result of the temperature-directed fusion process.
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Affiliation(s)
- Shu Peng
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, P. R. China.
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46
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Sakurai F, Hamasaka G, Uozumi Y. Development of an aquacatalytic system based on the formation of vesicles of an amphiphilic palladium NNC-pincer complex. Dalton Trans 2015; 44:7828-34. [DOI: 10.1039/c5dt00434a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two amphiphilic palladium NNC-pincer complexes bearing hydrophilic tri(ethylene glycol) chains and hydrophobic dodecyl chains were designed and prepared for the development of a new aquacatalytic system.
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Affiliation(s)
- Fumie Sakurai
- Institute for Molecular Science
- Okazaki 444-8787
- Japan
- SOKENDAI (The Graduate University for Advanced Studies)
- Okazaki 444-8787
| | - Go Hamasaka
- Institute for Molecular Science
- Okazaki 444-8787
- Japan
- SOKENDAI (The Graduate University for Advanced Studies)
- Okazaki 444-8787
| | - Yasuhiro Uozumi
- Institute for Molecular Science
- Okazaki 444-8787
- Japan
- SOKENDAI (The Graduate University for Advanced Studies)
- Okazaki 444-8787
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47
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Ikeda A, Iwata N, Hino S, Mae T, Tsuchiya Y, Sugikawa K, Hirao T, Haino T, Ohara K, Yamaguchi K. Liposome collapse resulting from an allosteric interaction between 2,6-dimethyl-β-cyclodextrins and lipids. RSC Adv 2015. [DOI: 10.1039/c5ra14970c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The addition of a large excess of heptakis(2,6-di-O-methyl)-β-cyclodextrin (DMe-β-CDx) led to the collapse of several liposomes via the formation of water-soluble lipid–DMe-β-CDx complex with allosteric interactions.
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48
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Peng S, Gao J, Liu Y, Guo DS. Facile fabrication of cross-linked vesicle via “surface clicking” of calixarene-based supra-amphiphiles. Chem Commun (Camb) 2015; 51:16557-60. [DOI: 10.1039/c5cc05170c] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A cross-linked binary vesicle was constructed by calixarene-induced aggregation followed by a “click” reaction, showing improved performance over a dynamic vesicle.
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Affiliation(s)
- Shu Peng
- Department of Chemistry
- State Key Laboratory of Elemento-Organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering
- Nankai University
- Tianjin 300071
| | - Jie Gao
- Department of Chemistry
- State Key Laboratory of Elemento-Organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering
- Nankai University
- Tianjin 300071
| | - Yu Liu
- Department of Chemistry
- State Key Laboratory of Elemento-Organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering
- Nankai University
- Tianjin 300071
| | - Dong-Sheng Guo
- Department of Chemistry
- State Key Laboratory of Elemento-Organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering
- Nankai University
- Tianjin 300071
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49
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Lee LC, Xiao C, Huang W, Zhao Y. Palladium–gold bimetallic nanoparticle catalysts prepared by “controlled release” from metal-loaded interfacially cross-linked reverse micelles. NEW J CHEM 2015. [DOI: 10.1039/c4nj01905a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bimetallic Pd–Au nanoparticles prepared by a novel method were active catalysts for green oxidation of alcohol in water.
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Affiliation(s)
- Li-Chen Lee
- Department of Chemistry
- Iowa State University
- Ames
- USA
| | | | - Wenyu Huang
- Department of Chemistry
- Iowa State University
- Ames
- USA
| | - Yan Zhao
- Department of Chemistry
- Iowa State University
- Ames
- USA
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50
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Banno T, Kazayama Y, Toyota T. Giant Vesicle Formation of Novel Polymerizable Amphiphile Associated with Its Polymerization and Hydrolysis in Water. CHEM LETT 2014. [DOI: 10.1246/cl.140635] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Taisuke Banno
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo
| | - Yuki Kazayama
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo
| | - Taro Toyota
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo
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