1
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Ghosh R, Singh B, Basu S, Mondal A, Maiti PK, De M. Reversing the Trend: Deciphering Self-Assembly of Unconventional Amphiphiles Having Both Alkyl-Chain and PEG. Chempluschem 2024:e202400147. [PMID: 38623044 DOI: 10.1002/cplu.202400147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 04/15/2024] [Accepted: 04/15/2024] [Indexed: 04/17/2024]
Abstract
In the field of molecular self-assembly, the core of an assembly is always made up of hydrophobic moiety like a long alkyl chain, whereas the outer part has always been a hydrophilic moiety such as poly(ethylene glycol) (PEG), or charged species. Hence, reversing the trend to manifest self-assembled structures with a PEG core and a surface consisting of alkyl chains in aqueous system is incredibly challenging. Herein, we architected a unique class of cationic bolaamphiphiles containing low molecular weight PEG and alkyl chains of different lengths. The bolaamphiphiles spontaneously form vesicles without external stimuli. These vesicles are unprecedented because PEG makes up the vesicle core, while the alkyl chains appear on the vesicles' exterior. Hence, this particular design reverses the usual trend of self-assembly formation. The vesicle size increases with the increase in alkyl chain-length. To our great surprise, we obtained large micelles for longest alkyl-chain amphiphile, which in turn act as a gemini amphiphile. The shift from a particular bolaamphiphile to gemini amphiphile with the variation of alkyl chain is also unexplored. Therefore, this specific class of self-assembled structure would compound a new paradigm in molecular self-assembly and supramolecular chemistry.
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Affiliation(s)
- Rita Ghosh
- Department of Organic Chemistry, Indian Institute of Science, Bengaluru, 560012, India
| | - Bharat Singh
- Department of Physics, Indian Institute of Science, Bengaluru, 560012, India
| | - Subhadip Basu
- Department of Physics, Indian Institute of Science, Bengaluru, 560012, India
| | - Avijit Mondal
- Department of Organic Chemistry, Indian Institute of Science, Bengaluru, 560012, India
| | - Prabal Kumar Maiti
- Department of Physics, Indian Institute of Science, Bengaluru, 560012, India
| | - Mrinmoy De
- Department of Organic Chemistry, Indian Institute of Science, Bengaluru, 560012, India
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2
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Geue N, Winpenny REP, Barran PE. Ion Mobility Mass Spectrometry for Large Synthetic Molecules: Expanding the Analytical Toolbox. J Am Chem Soc 2024; 146:8800-8819. [PMID: 38498971 PMCID: PMC10996010 DOI: 10.1021/jacs.4c00354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/29/2024] [Accepted: 03/01/2024] [Indexed: 03/20/2024]
Abstract
Understanding the composition, structure and stability of larger synthetic molecules is crucial for their design, yet currently the analytical tools commonly used do not always provide this information. In this perspective, we show how ion mobility mass spectrometry (IM-MS), in combination with tandem mass spectrometry, complementary techniques and computational methods, can be used to structurally characterize synthetic molecules, make and predict new complexes, monitor disassembly processes and determine stability. Using IM-MS, we present an experimental and computational framework for the analysis and design of complex molecular architectures such as (metallo)supramolecular cages, nanoclusters, interlocked molecules, rotaxanes, dendrimers, polymers and host-guest complexes.
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Affiliation(s)
- Niklas Geue
- Michael
Barber Centre for Collaborative Mass Spectrometry, Manchester Institute
of Biotechnology, Department of Chemistry, The University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K.
| | - Richard E. P. Winpenny
- Department
of Chemistry, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K.
| | - Perdita E. Barran
- Michael
Barber Centre for Collaborative Mass Spectrometry, Manchester Institute
of Biotechnology, Department of Chemistry, The University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K.
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3
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Wycisk V, Wagner MC, Urner LH. Trends in the Diversification of the Detergentome. Chempluschem 2024; 89:e202300386. [PMID: 37668309 DOI: 10.1002/cplu.202300386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/04/2023] [Accepted: 09/05/2023] [Indexed: 09/06/2023]
Abstract
Detergents are amphiphilic molecules that serve as enabling steps for today's world applications. The increasing diversity of the detergentome is key to applications enabled by detergent science. Regardless of the application, the optimal design of detergents is determined empirically, which leads to failed preparations, and raising costs. To facilitate project planning, here we review synthesis strategies that drive the diversification of the detergentome. Synthesis strategies relevant for industrial and academic applications include linear, modular, combinatorial, bio-based, and metric-assisted detergent synthesis. Scopes and limitations of individual synthesis strategies in context with industrial product development and academic research are discussed. Furthermore, when designing detergents, the selection of molecular building blocks, i. e., head, linker, tail, is as important as the employed synthesis strategy. To facilitate the design of safe-to-use and tailor-made detergents, we provide an overview of established head, linker, and tail groups and highlight selected scopes and limitations for applications. It becomes apparent that most recent contributions to the increasing chemical diversity of detergent building blocks originate from the development of detergents for membrane protein studies. The overview of synthesis strategies and molecular blocks will bring us closer to the ability to predictably design and synthesize optimal detergents for challenging future applications.
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Affiliation(s)
- Virginia Wycisk
- TU Dortmund University, Department of Chemistry and Chemical Biology, Otto-Hahn-Str. 6, 44227, Dortmund, Germany
| | - Marc-Christian Wagner
- TU Dortmund University, Department of Chemistry and Chemical Biology, Otto-Hahn-Str. 6, 44227, Dortmund, Germany
| | - Leonhard H Urner
- TU Dortmund University, Department of Chemistry and Chemical Biology, Otto-Hahn-Str. 6, 44227, Dortmund, Germany
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4
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DNA/Protein binding and anticancer activity of Zn(II) complexes based on azo-Schiff base ligands. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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5
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Xu Q, Cui Z, Yao J, Li B, Lv P, Shen X, Yu Z, Ge Y, Qi Z. Constitutionally adaptive crown ether-based macrocyclic bolaamphiphile with redox-responsive switching of lower critical solution temperature behaviors. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.05.058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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6
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Kumar Y, Singh VD, Dwivedi BK, Singh NK, Pandey DS. Solid state emissive azo-Schiff base ligands and their Zn( ii) complexes: acidochromism and photoswitching behaviour. NEW J CHEM 2021. [DOI: 10.1039/d0nj03401k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Two novel azo Schiff base ligands L1 and L2 and Zn(ii) complexes C1 and C2 exhibiting reversible acidochromic behavior and photoswitching properties have been described.
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Affiliation(s)
- Yogesh Kumar
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi – 221 005
- India
| | - Vishwa Deepak Singh
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi – 221 005
- India
| | | | - Nikhil Kumar Singh
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi – 221 005
- India
| | - Daya Shankar Pandey
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi – 221 005
- India
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7
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Liu Y, Peng Q, Li Y, Hou H, Li K. A simple strategy for constructing acylhydrazone photochromic system with visible color/emission change and its application in photo-patterning. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.05.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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8
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Parshad B, Prasad S, Bhatia S, Mittal A, Pan Y, Mishra PK, Sharma SK, Fruk L. Non-ionic small amphiphile based nanostructures for biomedical applications. RSC Adv 2020; 10:42098-42115. [PMID: 35516774 PMCID: PMC9058284 DOI: 10.1039/d0ra08092f] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 11/03/2020] [Indexed: 11/21/2022] Open
Abstract
Self-assembly of non-ionic amphiphilic architectures into nanostructures with defined size, shape and morphology has garnered substantial momentum in the recent years due to their extensive applications in biomedicine. The manifestation of a wide range of morphologies such as micelles, vesicles, fibers, tubes, and toroids is thought to be related to the structure of amphiphilic architectures, in particular, the choice of the hydrophilic and hydrophobic parts. In this review, we look at different types of non-ionic small amphiphilic architectures and the factors that influence their self-assembly into various nanostructures in aqueous medium. In particular, we focus on the explored structural parameters that guide the formation of various nanostructures, and the ways these structures can be used in applications ranging from drug delivery to cell imaging.
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Affiliation(s)
- Badri Parshad
- Department of Chemical Engineering and Biotechnology, University of Cambridge Cambridge CB3 0AS UK
| | - Suchita Prasad
- Department of Chemistry, University of Delhi Delhi 110 007 India
| | - Sumati Bhatia
- Institut für Chemie und Biochemie, Freie Universität Berlin Takustraße 3 14195 Berlin Germany
| | - Ayushi Mittal
- Department of Chemistry, University of Delhi Delhi 110 007 India
| | - Yuanwei Pan
- Institut für Chemie und Biochemie, Freie Universität Berlin Takustraße 3 14195 Berlin Germany
| | | | - Sunil K Sharma
- Department of Chemistry, University of Delhi Delhi 110 007 India
| | - Ljiljana Fruk
- Department of Chemical Engineering and Biotechnology, University of Cambridge Cambridge CB3 0AS UK
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9
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Prüfert C, Urban RD, Fischer TG, Villatoro J, Riebe D, Beitz T, Belder D, Zeitler K, Löhmannsröben HG. In situ monitoring of photocatalyzed isomerization reactions on a microchip flow reactor by IR-MALDI ion mobility spectrometry. Anal Bioanal Chem 2020; 412:7899-7911. [PMID: 32918557 PMCID: PMC7550389 DOI: 10.1007/s00216-020-02923-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 08/17/2020] [Accepted: 08/27/2020] [Indexed: 01/21/2023]
Abstract
The visible-light photocatalytic E/Z isomerization of olefins can be mediated by a wide spectrum of triplet sensitizers (photocatalysts). However, the search for the most efficient photocatalysts through screenings in photo batch reactors is material and time consuming. Capillary and microchip flow reactors can accelerate this screening process. Combined with a fast analytical technique for isomer differentiation, these reactors can enable high-throughput analyses. Ion mobility (IM) spectrometry is a cost-effective technique that allows simple isomer separation and detection on the millisecond timescale. This work introduces a hyphenation method consisting of a microchip reactor and an infrared matrix-assisted laser desorption ionization (IR-MALDI) ion mobility spectrometer that has the potential for high-throughput analysis. The photocatalyzed E/Z isomerization of ethyl-3-(pyridine-3-yl)but-2-enoate (E-1) as a model substrate was chosen to demonstrate the capability of this device. Classic organic triplet sensitizers as well as Ru-, Ir-, and Cu-based complexes were tested as catalysts. The ionization efficiency of the Z-isomer is much higher at atmospheric pressure which is due to a higher proton affinity. In order to suppress proton transfer reactions by limiting the number of collisions, an IM spectrometer working at reduced pressure (max. 100 mbar) was employed. This design reduced charge transfer reactions and allowed the quantitative determination of the reaction yield in real time. Among 14 catalysts tested, four catalysts could be determined as efficient sensitizers for the E/Z isomerization of ethyl cinnamate derivative E-1. Conversion rates of up to 80% were achieved in irradiation time sequences of 10 up to 180 s. With respect to current studies found in the literature, this reduces the acquisition times from several hours to only a few minutes per scan.
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Affiliation(s)
- Chris Prüfert
- University of Potsdam, Physical Chemistry, Karl-Liebknecht-Str. 24-25, 14476, Potsdam, Germany.
| | - Raphael David Urban
- Institute of Analytical Chemistry, Leipzig University, Linnéstraße 3, 04103, Leipzig, Germany
| | - Tillmann Georg Fischer
- Institute of Organic Chemistry, Leipzig University, Johannisallee 29, 04103, Leipzig, Germany
| | - José Villatoro
- University of Potsdam, Physical Chemistry, Karl-Liebknecht-Str. 24-25, 14476, Potsdam, Germany
| | - Daniel Riebe
- University of Potsdam, Physical Chemistry, Karl-Liebknecht-Str. 24-25, 14476, Potsdam, Germany
| | - Toralf Beitz
- University of Potsdam, Physical Chemistry, Karl-Liebknecht-Str. 24-25, 14476, Potsdam, Germany
| | - Detlev Belder
- Institute of Analytical Chemistry, Leipzig University, Linnéstraße 3, 04103, Leipzig, Germany
| | - Kirsten Zeitler
- Institute of Organic Chemistry, Leipzig University, Johannisallee 29, 04103, Leipzig, Germany
| | - Hans-Gerd Löhmannsröben
- University of Potsdam, Physical Chemistry, Karl-Liebknecht-Str. 24-25, 14476, Potsdam, Germany.
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10
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Urner LH, Schulze M, Maier YB, Hoffmann W, Warnke S, Liko I, Folmert K, Manz C, Robinson CV, Haag R, Pagel K. A new azobenzene-based design strategy for detergents in membrane protein research. Chem Sci 2020; 11:3538-3546. [PMID: 34109026 PMCID: PMC8152689 DOI: 10.1039/d0sc01022g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 03/09/2020] [Indexed: 12/02/2022] Open
Abstract
Mass spectrometry enables the in-depth structural elucidation of membrane protein complexes, which is of great interest in structural biology and drug discovery. Recent breakthroughs in this field revealed the need for design rules that allow fine-tuning the properties of detergents in solution and gas phase. Desirable features include protein charge reduction, because it helps to preserve native features of protein complexes during transfer from solution into the vacuum of a mass spectrometer. Addressing this challenge, we here present the first systematic gas-phase study of azobenzene detergents. The utility of gas-phase techniques for monitoring light-driven changes of isomer ratios and molecular properties are investigated in detail. This leads to the first azobenzene detergent that enables the native mass spectrometry analysis of membrane proteins and whose charge-reducing properties can be tuned by irradiation with light. More broadly, the presented work outlines new avenues for the high-throughput characterization of supramolecular systems and opens a new design strategy for detergents in membrane protein research.
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Affiliation(s)
- Leonhard H Urner
- Institute of Chemistry and Biochemistry, Freie Universität Berlin Arnimallee 22 14195 Berlin Germany
- Department of Molecular Physics, Fritz Haber Institute of the Max Planck Society Faradayweg 4-6 14195 Berlin Germany
- Physical and Theoretical Chemistry Laboratory, University of Oxford South Parks Road OX13QZ Oxford UK
| | - Maiko Schulze
- Institute of Chemistry and Biochemistry, Freie Universität Berlin Arnimallee 22 14195 Berlin Germany
| | - Yasmine B Maier
- Institute of Chemistry and Biochemistry, Freie Universität Berlin Arnimallee 22 14195 Berlin Germany
| | - Waldemar Hoffmann
- Institute of Chemistry and Biochemistry, Freie Universität Berlin Arnimallee 22 14195 Berlin Germany
- Department of Molecular Physics, Fritz Haber Institute of the Max Planck Society Faradayweg 4-6 14195 Berlin Germany
| | - Stephan Warnke
- Department of Molecular Physics, Fritz Haber Institute of the Max Planck Society Faradayweg 4-6 14195 Berlin Germany
| | - Idlir Liko
- Physical and Theoretical Chemistry Laboratory, University of Oxford South Parks Road OX13QZ Oxford UK
| | - Kristin Folmert
- Institute of Chemistry and Biochemistry, Freie Universität Berlin Arnimallee 22 14195 Berlin Germany
| | - Christian Manz
- Institute of Chemistry and Biochemistry, Freie Universität Berlin Arnimallee 22 14195 Berlin Germany
| | - Carol V Robinson
- Physical and Theoretical Chemistry Laboratory, University of Oxford South Parks Road OX13QZ Oxford UK
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin Arnimallee 22 14195 Berlin Germany
| | - Kevin Pagel
- Institute of Chemistry and Biochemistry, Freie Universität Berlin Arnimallee 22 14195 Berlin Germany
- Department of Molecular Physics, Fritz Haber Institute of the Max Planck Society Faradayweg 4-6 14195 Berlin Germany
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11
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Urner LH, Liko I, Yen HY, Hoi KK, Bolla JR, Gault J, Almeida FG, Schweder MP, Shutin D, Ehrmann S, Haag R, Robinson CV, Pagel K. Modular detergents tailor the purification and structural analysis of membrane proteins including G-protein coupled receptors. Nat Commun 2020; 11:564. [PMID: 31992701 PMCID: PMC6987200 DOI: 10.1038/s41467-020-14424-8] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 12/19/2019] [Indexed: 01/29/2023] Open
Abstract
Detergents enable the purification of membrane proteins and are indispensable reagents in structural biology. Even though a large variety of detergents have been developed in the last century, the challenge remains to identify guidelines that allow fine-tuning of detergents for individual applications in membrane protein research. Addressing this challenge, here we introduce the family of oligoglycerol detergents (OGDs). Native mass spectrometry (MS) reveals that the modular OGD architecture offers the ability to control protein purification and to preserve interactions with native membrane lipids during purification. In addition to a broad range of bacterial membrane proteins, OGDs also enable the purification and analysis of a functional G-protein coupled receptor (GPCR). Moreover, given the modular design of these detergents, we anticipate fine-tuning of their properties for specific applications in structural biology. Seen from a broader perspective, this represents a significant advance for the investigation of membrane proteins and their interactions with lipids. Detergents are indispensable reagents in membrane protein structural biology. Here, L. H. Urner and co-workers introduce oligoglycerol detergents (OGDs) and use native mass spectrometry to show how interactions of membrane proteins with native membrane lipids can be preserved during purification.
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Affiliation(s)
- Leonhard H Urner
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195, Berlin, Germany.,Physical and Theoretical Chemistry Laboratory, University of Oxford, Oxford, OX1 3QZ, UK
| | - Idlir Liko
- Physical and Theoretical Chemistry Laboratory, University of Oxford, Oxford, OX1 3QZ, UK.,OMass Therapeutics, The Schrödinger Building, Heatley Road, The Oxford Science Park, Oxford, OX4 4GE, UK
| | - Hsin-Yung Yen
- Physical and Theoretical Chemistry Laboratory, University of Oxford, Oxford, OX1 3QZ, UK.,OMass Therapeutics, The Schrödinger Building, Heatley Road, The Oxford Science Park, Oxford, OX4 4GE, UK
| | - Kin-Kuan Hoi
- Physical and Theoretical Chemistry Laboratory, University of Oxford, Oxford, OX1 3QZ, UK
| | - Jani Reddy Bolla
- Physical and Theoretical Chemistry Laboratory, University of Oxford, Oxford, OX1 3QZ, UK
| | - Joseph Gault
- Physical and Theoretical Chemistry Laboratory, University of Oxford, Oxford, OX1 3QZ, UK
| | - Fernando Gonçalves Almeida
- OMass Therapeutics, The Schrödinger Building, Heatley Road, The Oxford Science Park, Oxford, OX4 4GE, UK
| | - Marc-Philip Schweder
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195, Berlin, Germany
| | - Denis Shutin
- Physical and Theoretical Chemistry Laboratory, University of Oxford, Oxford, OX1 3QZ, UK
| | - Svenja Ehrmann
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195, Berlin, Germany
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195, Berlin, Germany.
| | - Carol V Robinson
- Physical and Theoretical Chemistry Laboratory, University of Oxford, Oxford, OX1 3QZ, UK.
| | - Kevin Pagel
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195, Berlin, Germany. .,Department of Molecular Physics, Fritz Haber Institute of the Max Planck Society, 14195, Berlin, Germany.
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12
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Litinas I, Koutselos AD. Structure Distribution of Gaseous Ions in Strong Electrostatic Fields. J Phys Chem A 2019; 123:5683-5691. [PMID: 31250648 DOI: 10.1021/acs.jpca.9b03441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In drift tube experiments, where ions move in gases under the action of an electrostatic field, collision excitation is implemented for the study of the energy partitioning in the molecular degrees of freedom and the corresponding relaxation rates when the excitation is turned off. In the case of flexible ions, the vibration modes related to metastable molecular structures have been activated in ion mobility spectrometry and their population has been probed with respect to the field strength and the gas temperature. Here, we study the angular vibrational excitation and relaxation of such systems by examining the motion of molecular ions with one bending mode at strong fields using a nonequilibrium molecular dynamics simulation method. The relatively stable structures are introduced through the use of an intramolecular angular potential with minima at the position of the most stable conformations. We calculate the first few moments of the velocity and angular velocity distribution functions as well as the distribution of the conformers, and find that they follow unified curves when plotted with respect to the relative ion-atom collision energy. At high field strengths, the angular vibration is excited and a portion of the ions interchanges conformations continuously in time with the populations of the molecular structures to attain limiting values. In addition, orientational alignment, with the perpendicular angular momentum being greater than the one parallel to the field, is observed. Our observations, although based on a specific system, must be rather general for the case of large flexible molecular ions.
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Affiliation(s)
- Iraklis Litinas
- Department of Chemistry, Physical Chemistry Laboratory , National and Kapodistrian University of Athens , Panepistimiopolis, 15771 Athens , Greece
| | - Andreas D Koutselos
- Department of Chemistry, Physical Chemistry Laboratory , National and Kapodistrian University of Athens , Panepistimiopolis, 15771 Athens , Greece
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13
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Urner LH, Schade B, Schulze M, Folmert K, Haag R, Pagel K. Switchable Solubility of Azobenzene-Based Bolaamphiphiles. Chemphyschem 2019; 20:1690-1697. [PMID: 31074563 DOI: 10.1002/cphc.201900334] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 05/08/2019] [Indexed: 11/05/2022]
Abstract
The ability to design amphiphiles with predictable solubility properties is of everlasting interest in supramolecular chemistry. Relevant structural parameters include the hydrophobic-hydrophilic balance and structural flexibility. In this work, we investigate the water solubility of azobenzene-based triglycerol bolaamphiphiles (TGBAs). In particular, we analyzed the structural effects of backbone hydrophobicity, flexibility, and cis/trans isomerization on the water solubility of a subset of five TGBAs. This leads to the first example of a non-ionic bolaamphiphile whose water solubility can be changed by irradiation with light. The underlying kinetics were monitored using liquid chromatography and a closer analysis of the underlying aggregation processes provides a mechanistic understanding of the light-driven dissolution process. We anticipate that the results obtained will help to engineer bolaamphiphiles with predictable solution properties in the future.
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Affiliation(s)
- Leonhard H Urner
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Takustraße 3, 14195, Berlin, Germany
| | - Boris Schade
- Freie Universität Berlin Institute of Chemistry and Biochemistry, Research Center of Electron Microscopy, 14195, Berlin, Germany
| | - Maiko Schulze
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Takustraße 3, 14195, Berlin, Germany
| | - Kristin Folmert
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Takustraße 3, 14195, Berlin, Germany
| | - Rainer Haag
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Takustraße 3, 14195, Berlin, Germany
| | - Kevin Pagel
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Takustraße 3, 14195, Berlin, Germany.,Fritz Haber Institute of the Max Planck Society, Department of Molecular Physics, Faradayweg 4-6, Berlin, Germany
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14
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Jose J, Rajamani AR, Anandaram S, Jose SP, Peter SC, P B S. Photophysical and Electrochemical Studies of Anchored Chromium (III) Complex on Reduced Graphene Oxide via Diazonium Chemistry. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Jemini Jose
- Department of ChemistryCHRIST (Deemed to be University) Bengaluru 560029 India
| | - Athimotlu Raju Rajamani
- New Chemistry Unit, School of Advanced MaterialsJawaharlal Nehru Centre for Advanced Scientific Research Jakkur Bengaluru 560064 India
| | - Sreekanth Anandaram
- Department of ChemistryNational Institute of Technology Tiruchirappalli 620015 India
| | - Sujin P. Jose
- School of PhysicsMadurai Kamaraj University Madurai 625021 India
| | - Sebastian C. Peter
- New Chemistry Unit, School of Advanced MaterialsJawaharlal Nehru Centre for Advanced Scientific Research Jakkur Bengaluru 560064 India
| | - Sreeja P B
- Department of ChemistryCHRIST (Deemed to be University) Bengaluru 560029 India
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15
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Galanti A, Santoro J, Mannancherry R, Duez Q, Diez-Cabanes V, Valášek M, De Winter J, Cornil J, Gerbaux P, Mayor M, Samorì P. A New Class of Rigid Multi(azobenzene) Switches Featuring Electronic Decoupling: Unravelling the Isomerization in Individual Photochromes. J Am Chem Soc 2019; 141:9273-9283. [DOI: 10.1021/jacs.9b02544] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Agostino Galanti
- Université de Strasbourg, CNRS, ISIS UMR 7006, 8 allée Gaspard Monge, 67000 Strasbourg, France
| | - Jasmin Santoro
- Karlsruhe Institute of Technology KIT, Institute of Nanotechnology, P.O. Box
3640, 76021 Karlsruhe, Germany
| | - Rajesh Mannancherry
- Department of Chemistry, University of Basel, St. Johannsring 19, 4056 Basel, Switzerland
| | - Quentin Duez
- Organic Synthesis and Mass Spectrometry Laboratory, University of Mons, Place du Parc 20, 7000 Mons, Belgium
| | - Valentin Diez-Cabanes
- Laboratory for Chemistry of Novel Materials, University of Mons, Place du Parc 20, 7000 Mons, Belgium
| | - Michal Valášek
- Karlsruhe Institute of Technology KIT, Institute of Nanotechnology, P.O. Box
3640, 76021 Karlsruhe, Germany
| | - Julien De Winter
- Organic Synthesis and Mass Spectrometry Laboratory, University of Mons, Place du Parc 20, 7000 Mons, Belgium
| | - Jérôme Cornil
- Laboratory for Chemistry of Novel Materials, University of Mons, Place du Parc 20, 7000 Mons, Belgium
| | - Pascal Gerbaux
- Organic Synthesis and Mass Spectrometry Laboratory, University of Mons, Place du Parc 20, 7000 Mons, Belgium
| | - Marcel Mayor
- Karlsruhe Institute of Technology KIT, Institute of Nanotechnology, P.O. Box
3640, 76021 Karlsruhe, Germany
- Department of Chemistry, University of Basel, St. Johannsring 19, 4056 Basel, Switzerland
- Lehn Institute of Functional Materials (LFM), School of Chemistry, Sun Yat-Sen University (SYSU), Guangzhou 510275, China
| | - Paolo Samorì
- Université de Strasbourg, CNRS, ISIS UMR 7006, 8 allée Gaspard Monge, 67000 Strasbourg, France
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16
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Wollschläger JM, Schalley CA. Ion Mobility Mass Spectrometric Investigation on the Photoisomerization of a 4,4’‐Diamidoazobenzene Model. CHEMPHOTOCHEM 2019. [DOI: 10.1002/cptc.201800251] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Jan M. Wollschläger
- Institut für Chemie und Biochemie der Freien Universität Berlin Takustr 3 14195 Berlin Germany
| | - Christoph A. Schalley
- Institut für Chemie und Biochemie der Freien Universität Berlin Takustr 3 14195 Berlin Germany
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17
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Rashmi, Singh AK, Achazi K, Schade B, Böttcher C, Haag R, Sharma SK. Synthesis of non-ionic bolaamphiphiles and study of their self-assembly and transport behaviour for drug delivery applications. RSC Adv 2018; 8:31777-31782. [PMID: 35548236 PMCID: PMC9085746 DOI: 10.1039/c8ra05921g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 08/27/2018] [Indexed: 11/21/2022] Open
Abstract
A series of four bolaamphiphiles with different hydrophilic units has been synthesised. All the amphiphiles were well characterised from their physiochemical data. The aggregation tendency of newly synthesised amphiphiles was studied using fluorescence spectroscopy, dynamic light scattering (DLS), and cryogenic electron microscopy (cryo-TEM). Furthermore, their application as nanocarriers for hydrophobic guests was demonstrated by using two established standards, i.e. the dye Nile red and the drug nimodipine. A cytotoxicity and cellular uptake study has been carried out using A549 cells. Due to the presence of an ester linkage in PEG based bolaamphiphiles, a drug release study was performed in the presence of an immobilized enzyme Novozym-435 (a lipase).
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Affiliation(s)
- Rashmi
- Department of Chemistry, University of Delhi Delhi 110 007 India +91-11-27666646
| | - Abhishek K Singh
- Department of Chemistry, University of Delhi Delhi 110 007 India +91-11-27666646
| | - Katharina Achazi
- Institut für Chemie und Biochemie, Freie Universität Berlin Takustraße 3 14195 Berlin Germany +49-30-838-452633 +49-30-838-52633
| | - Boris Schade
- Forschungszentrum für Elektronenmikroskopie, Institut für Chemie und Biochemie, Freie Universität Berlin Fabeckstraße 36a 14195 Berlin Germany
| | - Christoph Böttcher
- Forschungszentrum für Elektronenmikroskopie, Institut für Chemie und Biochemie, Freie Universität Berlin Fabeckstraße 36a 14195 Berlin Germany
| | - Rainer Haag
- Institut für Chemie und Biochemie, Freie Universität Berlin Takustraße 3 14195 Berlin Germany +49-30-838-452633 +49-30-838-52633
| | - Sunil K Sharma
- Department of Chemistry, University of Delhi Delhi 110 007 India +91-11-27666646
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18
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Schröder HV, Wollschläger JM, Schalley CA. Redox-controlled self-inclusion of a lasso-type pseudo[1]rotaxane. Chem Commun (Camb) 2017; 53:9218-9221. [PMID: 28766588 DOI: 10.1039/c7cc05259f] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The self-inclusion behavior of a tetrathiafulvalene-containing lasso-type pseudo[1]rotaxane can be reversibly switched between threaded and non-threaded states by redox-stimuli. The switching mechanism was investigated by cyclic voltammetry in solution and monitored by ion mobility mass spectrometry in the gas phase.
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Affiliation(s)
- Hendrik V Schröder
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany.
| | - Jan M Wollschläger
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany.
| | - Christoph A Schalley
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany.
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19
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Yin JF, Hu Y, Wang DG, Yang L, Jin Z, Zhang Y, Kuang GC. Cucurbit[8]uril-Based Water-Soluble Supramolecular Dendronized Polymer: Evidence from Single Polymer Chain Morphology and Force Spectroscopy. ACS Macro Lett 2017; 6:139-143. [PMID: 35632883 DOI: 10.1021/acsmacrolett.6b00973] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A novel water-soluble supramolecular dendronized polymer (SDP) was prepared through cucurbit[8]uril (CB[8])-naphthalene host-guest interaction. The composition ratio between BDP and CB[8] of as-prepared luminescent supramolecular polymer was confirmed by 1H NMR technique and mass spectrometry. In addition, atomic force microscopy (AFM) images showing the polymer chain length up to 150 nm and height up to 1.75 nm unambiguously demonstrate the supramolecular polymer formation. This work might be useful for designing other main chain supramolecular dendronized polymers.
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Affiliation(s)
| | - Yi Hu
- Key
Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation
Center of Chemistry for Life Sciences, School of Chemistry and Chemical
Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
| | | | | | - Zhong Jin
- Key
Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation
Center of Chemistry for Life Sciences, School of Chemistry and Chemical
Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
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20
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Oh SW, Baek JM, Kim SH, Yoon TH. Optical and electrical switching of cholesteric liquid crystals containing azo dye. RSC Adv 2017. [DOI: 10.1039/c7ra01507k] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We propose an optically and electrically switchable cholesteric liquid crystal (ChLC) cell doped with a push–pull azo dye.
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Affiliation(s)
- Seung-Won Oh
- Department of Electronics Engineering
- Pusan National University
- Busan 46241
- Korea
| | - Jong-Min Baek
- Department of Electronics Engineering
- Pusan National University
- Busan 46241
- Korea
| | - Sang-Hyeok Kim
- Department of Electronics Engineering
- Pusan National University
- Busan 46241
- Korea
| | - Tae-Hoon Yoon
- Department of Electronics Engineering
- Pusan National University
- Busan 46241
- Korea
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21
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Mun G, Choi H, Im N, Ahn J, Park J, Seo H, Choi Y, Lee JH, Jung JH. Retracted Article: Spatially resolved mechanical properties of photo-responsive azobenzene-based supramolecular gels. RSC Adv 2017. [DOI: 10.1039/c7ra03797j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The mechanical properties of azobenzene-based gelators were finely controlled by UV irradiation.
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Affiliation(s)
- Gyuri Mun
- Department of Chemistry and Research Institute of Natural Sciences
- Gyeongsang National University
- Jinju 660-701
- Korea
| | - Heekyoung Choi
- Department of Chemistry and Research Institute of Natural Sciences
- Gyeongsang National University
- Jinju 660-701
- Korea
| | - Nayoung Im
- Department of Chemistry and Research Institute of Natural Sciences
- Gyeongsang National University
- Jinju 660-701
- Korea
| | - Junho Ahn
- Department of Chemistry and Research Institute of Natural Sciences
- Gyeongsang National University
- Jinju 660-701
- Korea
| | - Jaehyeon Park
- Department of Chemistry and Research Institute of Natural Sciences
- Gyeongsang National University
- Jinju 660-701
- Korea
| | - Hyowon Seo
- Department of Chemistry and Research Institute of Natural Sciences
- Gyeongsang National University
- Jinju 660-701
- Korea
| | - Yeonweon Choi
- Department of Chemistry and Research Institute of Natural Sciences
- Gyeongsang National University
- Jinju 660-701
- Korea
| | - Ji Ha Lee
- Department of Chemistry and Research Institute of Natural Sciences
- Gyeongsang National University
- Jinju 660-701
- Korea
- Department of Chemistry and Biochemistry
| | - Jong Hwa Jung
- Department of Chemistry and Research Institute of Natural Sciences
- Gyeongsang National University
- Jinju 660-701
- Korea
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22
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Bull JN, Scholz MS, Coughlan NJA, Kawai A, Bieske EJ. Monitoring Isomerization of Molecules in Solution Using Ion Mobility Mass Spectrometry. Anal Chem 2016; 88:11978-11981. [DOI: 10.1021/acs.analchem.6b04000] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- James N. Bull
- School
of Chemistry, University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Michael S. Scholz
- School
of Chemistry, University of Melbourne, Melbourne, Victoria 3010, Australia
| | | | - Akio Kawai
- Department
of Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, Ohokayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Evan J. Bieske
- School
of Chemistry, University of Melbourne, Melbourne, Victoria 3010, Australia
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23
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Xiao X, Miller LL, Bernstein R, Hochrein JM. Thermal degradation of β-carotene studied by ion mobility atmospheric solid analysis probe mass spectrometry: full product pattern and selective ionization enhancement. JOURNAL OF MASS SPECTROMETRY : JMS 2016; 51:309-314. [PMID: 27041662 DOI: 10.1002/jms.3755] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 01/26/2016] [Accepted: 02/02/2016] [Indexed: 06/05/2023]
Abstract
Atmospheric solid analysis probe mass spectrometry has the capability of capturing full product patterns simultaneously including both volatile and semi-volatile compounds produced at elevated temperatures. Real-time low-energy collision-induced fragmentation combined with ion mobility separations enables rapid identification of the chemical structures of products. We present here for the first time the recognition of full product patterns resulting from the thermal degradation of β-carotene at temperatures up to 600 °C. Solvent vapor-induced ionization enhancement is observed, which reveals parallel thermal dissociation processes that lead to even- and odd-numbered mass products. The drift-time distributions of high mass products, along with β-carotene, were monitored with temperature, showing multiple conformations that are associated with the presence of two β-rings. Products of masses 346/347, however, show a single conformation distribution, which indicates the separation of two β-rings resulting from the direct bond scission at the polyene hydrocarbon chain. The thermal degradation pathways are evaluated and discussed.
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Affiliation(s)
- Xiaoyin Xiao
- Sandia National Laboratories, Albuquerque, NM, USA
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24
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Abstract
Dendritic molecules are an exciting research topic because of their highly branched architecture, multiple functional groups on the periphery, and very pertinent features for various applications. Self-assembling dendritic amphiphiles have produced different nanostructures with unique morphologies and properties. Since their self-assembly in water is greatly relevant for biomedical applications, researchers have been looking for a way to rationally design dendritic amphiphiles for the last few decades. We review here some recent developments from investigations on the self-assembly of dendritic amphiphiles into various nanostructures in water on the molecular level. The main content of the review is divided into sections according to the different nanostructure morphologies resulting from the dendritic amphiphiles' self-assembly. Finally, we conclude with some remarks that highlight the self-assembling features of these dendritic amphiphiles.
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Affiliation(s)
- Bala N S Thota
- Institute of Chemistry and Biochemistry, Freie Universität Berlin , Berlin 14195, Germany
| | - Leonhard H Urner
- Institute of Chemistry and Biochemistry, Freie Universität Berlin , Berlin 14195, Germany
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin , Berlin 14195, Germany
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25
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Kim DY, Lee SA, Kim H, Min Kim S, Kim N, Jeong KU. An azobenzene-based photochromic liquid crystalline amphiphile for a remote-controllable light shutter. Chem Commun (Camb) 2015; 51:11080-3. [DOI: 10.1039/c5cc02834e] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
By considering intramolecular conformations and intermolecular interactions, a photochromic liquid crystalline amphiphile is synthesized for a remote-controllable light shutter.
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Affiliation(s)
- Dae-Yoon Kim
- Polymer Materials Fusion Research Center & Department of Polymer-Nano Science and Technology
- Chonbuk National University
- Jeonju
- Korea
| | - Sang-A Lee
- Polymer Materials Fusion Research Center & Department of Polymer-Nano Science and Technology
- Chonbuk National University
- Jeonju
- Korea
| | - Huisu Kim
- Polymer Materials Fusion Research Center & Department of Polymer-Nano Science and Technology
- Chonbuk National University
- Jeonju
- Korea
| | - Soo Min Kim
- Soft Innovative Materials Research Center
- Institute of Advanced Composite Materials
- Korea Institute of Science and Technology
- Jeollabuk-do
- Republic of Korea
| | - Namil Kim
- Smart Materials R&D Center
- Korea Automotive Technology Institute
- Cheonan
- Korea
| | - Kwang-Un Jeong
- Polymer Materials Fusion Research Center & Department of Polymer-Nano Science and Technology
- Chonbuk National University
- Jeonju
- Korea
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