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Abstract
This review surveys recent progress towards robust chiral nanostructure fabrication techniques using synthetic helical polymers, the unique inferred properties that these materials possess, and their intricate connection to natural, biological chirality.
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Affiliation(s)
| | - James F. Reuther
- Department of Chemistry
- University of Massachusetts Lowell
- Lowell
- USA
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2
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Seeley JP, Cotlet M, Eagleton AM, Higashiya S, Welch JT. Resonance Energy Transfer in a Genetically Engineered Polypeptide Results in Unanticipated Fluorescence Intensity. Chemistry 2019; 25:961-965. [PMID: 30414202 DOI: 10.1002/chem.201804470] [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: 09/02/2018] [Revised: 11/08/2018] [Indexed: 11/11/2022]
Abstract
The fluorescence intensity of a C-terminal acceptor chromophore, N-(7-dimethylamino-4-methyl coumarin (DACM), increased proportionally with 280 nm irradiation of an increasing number of donor tryptophan residues located on a β-sheet forming polypeptide. The fluorescence intensity of the acceptor chromophore increased even as the length of the β-sheet edge approached 256 Å, well beyond the Förster radius for the tryptophan-acceptor chromophore pair. The folding of the peptides under investigation was verified by circular dichroism (CD) and deep UV resonance Raman experiments. Control experiments showed that the enhancement of DACM fluorescence occurred concomitantly with peptide folding. In other control experiments, the DACM fluorescence intensity of the solutions of tryptophan and DACM did not show any enhancement of DACM fluorescence with increasing tryptophan concentrations. Formation of fibrillar aggregates of the substrate peptides prepared for the fluorescence studies was undetectable by thioflavin T (ThT) fluorescence.
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Affiliation(s)
- Jason P Seeley
- Department of Chemistry, University at Albany, SUNY, 1400 Washington Ave., Albany, NY, 12222, USA
| | - Mircea Cotlet
- Center for Functional Nanomaterials, Brookhaven National Laboratory, 735 Brookhaven Ave., Upton, NY, 11973, USA
| | - Aileen M Eagleton
- Department of Chemistry, University at Albany, SUNY, 1400 Washington Ave., Albany, NY, 12222, USA
| | - Seiichiro Higashiya
- Department of Chemistry, University at Albany, SUNY, 1400 Washington Ave., Albany, NY, 12222, USA
| | - John T Welch
- Department of Chemistry, University at Albany, SUNY, 1400 Washington Ave., Albany, NY, 12222, USA
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3
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Temelli B, Ozasik O, Yüksel D. Synthesis, Spectroscopic Properties, and DFT Calculations of Imine-Bridged meso
-meso
- and β-meso
-Linked Porphyrin-Corrole Dyads. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700896] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Baris Temelli
- Department of Chemistry; Hacettepe University; 06800 Ankara Turkey
| | - Ozgun Ozasik
- Department of Chemistry; Hacettepe University; 06800 Ankara Turkey
| | - Dilek Yüksel
- Department of Chemistry; Hacettepe University; 06800 Ankara Turkey
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4
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Liscio A, Kouroupis-Agalou K, Kovtun A, Gebremedhn E, El Garah M, Rekab W, Orgiu E, Giorgini L, Samorì P, Beljonne D, Palermo V. Exfoliation of Few-Layer Graphene in Volatile Solvents Using Aromatic Perylene Diimide Derivatives as Surfactants. Chempluschem 2016; 82:358-367. [DOI: 10.1002/cplu.201600503] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 11/11/2016] [Indexed: 11/06/2022]
Affiliation(s)
| | | | | | | | - Mohamed El Garah
- ISIS & icFRC; Université de Strasbourg&CNRS; 8 allée Gaspard Monge 67000 Strasbourg France
| | - Wassima Rekab
- ISIS & icFRC; Université de Strasbourg&CNRS; 8 allée Gaspard Monge 67000 Strasbourg France
| | - Emanuele Orgiu
- ISIS & icFRC; Université de Strasbourg&CNRS; 8 allée Gaspard Monge 67000 Strasbourg France
| | - Loris Giorgini
- Dipartimento di Chimica Industriale “Toso Montanari”; Università di Bologna; viale Risorgimento 4 40100 Bologna Italy
| | - Paolo Samorì
- ISIS & icFRC; Université de Strasbourg&CNRS; 8 allée Gaspard Monge 67000 Strasbourg France
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5
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Zinkevich T, Venderbosch B, Jaspers M, Kouwer PHJ, Rowan AE, van Eck ERH, Kentgens APM. Solid-state NMR characterization of tri-ethyleneglycol grafted polyisocyanopeptides. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2016; 54:328-333. [PMID: 26559660 DOI: 10.1002/mrc.4379] [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: 08/13/2015] [Revised: 09/30/2015] [Accepted: 10/09/2015] [Indexed: 06/05/2023]
Abstract
In aqueous media, ethylene glycol substituted polyisocyanopeptides (PICPs) change their state (undergo a sol-to-gel transition) as a response to temperature. This makes them promising materials for various biomedical applications, for instance, for controlled drug release and non-damaging wound dressing. To utilize PICP in biomedical applications, understanding of the origin of the gelation process is needed, but this is experimentally difficult because of the notoriously low gelator concentration in combination with the slow polymer dynamics in the sample. This paper describes a detailed characterization of the dried state of PICPs by solid-state NMR measurements. Both the (13) C and the (1) H NMR resonances were assigned using a combination of 1D cross-polarization magic angle spinning, 2D (13) C-(1) H heteronuclear correlation spectra and (1) H-(1) H single quantum-double quantum experiments. In addition, the chemical groups involved in dipolar interaction with each other were used to discuss the dynamics and spatial conformation of the polymer. In contrast to other PICP polymers, two resonances for the backbone carbon are observed, which are present in equal amounts. The possible origin of these resonances is discussed in the last section of this work. The data obtained during the current studies will be further used in elucidating mechanisms of the bundling and gelation. A comprehensive picture will make it possible to tailor polymer properties to meet specific needs in different applications. Copyright © 2015 John Wiley & Sons, Ltd.
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Affiliation(s)
- T Zinkevich
- Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalsweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - B Venderbosch
- Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalsweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - M Jaspers
- Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalsweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - P H J Kouwer
- Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalsweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - A E Rowan
- Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalsweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - E R H van Eck
- Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalsweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - A P M Kentgens
- Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalsweg 135, 6525 AJ, Nijmegen, The Netherlands
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6
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Ikai T, Wada Y, Takagi Y, Shinohara KI. Impact of a minority enantiomer on the polymerization of alanine-based isocyanides with an oligothiophene pendant. Polym Chem 2016. [DOI: 10.1039/c6py01351a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A synthetic polymer requiring a long-range homochiral sequence (>50 repeating units) to fold into a helical conformation has been prepared.
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Affiliation(s)
- Tomoyuki Ikai
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Yuya Wada
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Yugaku Takagi
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Ken-ichi Shinohara
- School of Materials Science
- Japan Advanced Institute of Science and Technology
- Nomi 923-1292
- Japan
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7
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Progress in side-chain thiophene-containing polymers: synthesis, properties and applications. Sci China Chem 2015. [DOI: 10.1007/s11426-015-5434-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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8
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Ferrari AC, Bonaccorso F, Fal'ko V, Novoselov KS, Roche S, Bøggild P, Borini S, Koppens FHL, Palermo V, Pugno N, Garrido JA, Sordan R, Bianco A, Ballerini L, Prato M, Lidorikis E, Kivioja J, Marinelli C, Ryhänen T, Morpurgo A, Coleman JN, Nicolosi V, Colombo L, Fert A, Garcia-Hernandez M, Bachtold A, Schneider GF, Guinea F, Dekker C, Barbone M, Sun Z, Galiotis C, Grigorenko AN, Konstantatos G, Kis A, Katsnelson M, Vandersypen L, Loiseau A, Morandi V, Neumaier D, Treossi E, Pellegrini V, Polini M, Tredicucci A, Williams GM, Hong BH, Ahn JH, Kim JM, Zirath H, van Wees BJ, van der Zant H, Occhipinti L, Di Matteo A, Kinloch IA, Seyller T, Quesnel E, Feng X, Teo K, Rupesinghe N, Hakonen P, Neil SRT, Tannock Q, Löfwander T, Kinaret J. Science and technology roadmap for graphene, related two-dimensional crystals, and hybrid systems. NANOSCALE 2015; 7:4598-810. [PMID: 25707682 DOI: 10.1039/c4nr01600a] [Citation(s) in RCA: 991] [Impact Index Per Article: 110.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
We present the science and technology roadmap for graphene, related two-dimensional crystals, and hybrid systems, targeting an evolution in technology, that might lead to impacts and benefits reaching into most areas of society. This roadmap was developed within the framework of the European Graphene Flagship and outlines the main targets and research areas as best understood at the start of this ambitious project. We provide an overview of the key aspects of graphene and related materials (GRMs), ranging from fundamental research challenges to a variety of applications in a large number of sectors, highlighting the steps necessary to take GRMs from a state of raw potential to a point where they might revolutionize multiple industries. We also define an extensive list of acronyms in an effort to standardize the nomenclature in this emerging field.
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Affiliation(s)
- Andrea C Ferrari
- Cambridge Graphene Centre, University of Cambridge, Cambridge, CB3 0FA, UK.
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9
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Spreitler F, Sommer M, Hollfelder M, Thelakkat M, Gekle S, Köhler J. Unravelling the conformations of di-(perylene bisimide acrylate) by combining time-resolved fluorescence-anisotropy experiments and molecular modelling. Phys Chem Chem Phys 2014; 16:25959-68. [DOI: 10.1039/c4cp03064h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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10
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Kim SH, Parquette JR. 1D Self-assembly of Terthiophene (3T)–Naphthalenediimide (NDI) Dyad. CHEM LETT 2014. [DOI: 10.1246/cl.140586] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Se Hye Kim
- Department of Chemistry, The Ohio State University
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11
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Lin NT, Satyanarayana K, Chen CH, Tsai YF, Yu SSF, Chan SI, Luh TY. Controlling the Orientation of Pendants in Two-Dimensional Comb-Like Polymers by Varying Stiffness of Polymeric Backbones. Macromolecules 2014. [DOI: 10.1021/ma5007655] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Nai-Ti Lin
- Department
of Chemistry, National Taiwan University, Taipei, 106 Taiwan
| | | | - Chih-Hsien Chen
- Department
of Chemical Engineering, Feng Chia University, Taichung, 407 Taiwan
| | - Yi-Fang Tsai
- Institute
of Chemistry, Academia Sinica, Nangang, Taipei, 115 Taiwan
| | - Steve Sheng-Fa Yu
- Institute
of Chemistry, Academia Sinica, Nangang, Taipei, 115 Taiwan
| | - Sunney I. Chan
- Institute
of Chemistry, Academia Sinica, Nangang, Taipei, 115 Taiwan
| | - Tien-Yau Luh
- Department
of Chemistry, National Taiwan University, Taipei, 106 Taiwan
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12
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Vincenzo Palermo. Chempluschem 2014; 79:347. [DOI: 10.1002/cplu.201400024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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13
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14
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Yan Y, Zhao YS. Organic nanophotonics: from controllable assembly of functional molecules to low-dimensional materials with desired photonic properties. Chem Soc Rev 2014; 43:4325-40. [PMID: 24695580 DOI: 10.1039/c4cs00098f] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The tutorial review aims to provide an insight into the relationship among opto-functional molecules, controllable assembly, diverse nanostructures and photonic properties, which can further guide the function-oriented design and synthesis of low-dimensional materials for integrated photonic devices.
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Affiliation(s)
- Yongli Yan
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- CAS Key Laboratory of Photochemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing, China
| | - Yong Sheng Zhao
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- CAS Key Laboratory of Photochemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing, China
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15
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Schwartz E, Liégeois V, Koepf M, Bodis P, Cornelissen JJLM, Brocorens P, Beljonne D, Nolte RJM, Rowan AE, Woutersen S, Champagne B. Beta Sheets with a Twist: The Conformation of Helical Polyisocyanopeptides Determined by Using Vibrational Circular Dichroism. Chemistry 2013; 19:13168-74. [DOI: 10.1002/chem.201300073] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Revised: 05/07/2013] [Indexed: 11/10/2022]
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16
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Kervyn S, Fenwick O, Di Stasio F, Shin YS, Wouters J, Accorsi G, Osella S, Beljonne D, Cacialli F, Bonifazi D. Polymorphism, fluorescence, and optoelectronic properties of a borazine derivative. Chemistry 2013; 19:7771-9. [PMID: 23616404 DOI: 10.1002/chem.201204598] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2012] [Indexed: 11/06/2022]
Abstract
We have prepared a new borazine derivative that bears mesityl substituents at the boron centers and displays exceptional chemical stability. Detailed crystallographic and solid-state fluorescence characterizations revealed the existence of several polymorphs, each of which showed different emission profiles. In particular, a bathochromic shift is observed when going from the lower- to the higher-density crystal. Computational investigations of the conformational dynamics of borazine 1 in both the gas phase and in the solid state using molecular dynamics (MD) simulations showed that the conformation of the peripheral aryl groups significantly varies when going from an isolated molecule (in which the rings are able to flip over the 90° barrier at RT) to the crystals (in which the rotation is locked by packing effects), thus generating specific nonsymmetric intermolecular interactions in the different polymorphs. To investigate the optoelectronic properties of these materials by fabrication and characterization of light-emitting diodes (LEDs) and light-emitting electrochemical cells (LECs), borazine 1 was incorporated as the active material in the emissive layer. The current and radiance versus voltage characteristics, as well as the electroluminescence spectra reported here for the first time are encouraging prospects for the engineering of future borazine-based devices.
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Affiliation(s)
- Simon Kervyn
- Department of Chemistry and Namur Research College (NARC), University of Namur (UNamur), Rue de Bruxelles 61, Namur, 5000, Belgium
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17
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Tu S, Kim SH, Joseph J, Modarelli DA, Parquette JR. Proton-Coupled Self-Assembly of a Porphyrin-Naphthalenediimide Dyad. Chemphyschem 2013; 14:1609-17. [DOI: 10.1002/cphc.201300023] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Revised: 02/27/2013] [Indexed: 11/07/2022]
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18
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van Buul AM, Schwartz E, Brocorens P, Koepf M, Beljonne D, Maan JC, Christianen PCM, Kouwer PHJ, Nolte RJM, Engelkamp H, Blank K, Rowan AE. Stiffness versus architecture of single helical polyisocyanopeptides. Chem Sci 2013. [DOI: 10.1039/c3sc50552a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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19
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Yang YS, Yasuda T, Kakizoe H, Mieno H, Kino H, Tateyama Y, Adachi C. High performance organic field-effect transistors based on single-crystal microribbons and microsheets of solution-processed dithieno[3,2-b:2′,3′-d]thiophene derivatives. Chem Commun (Camb) 2013; 49:6483-5. [DOI: 10.1039/c3cc42114g] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Nguyen MH, Yip JHK. Platinum-Conjugated Homo- and Heterobichromophoric Complexes of Tetracene and Pentacene. Organometallics 2012. [DOI: 10.1021/om300815b] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Minh-Hai Nguyen
- Department of Chemistry, National University of Singapore, 3
Science Drive 3, Singapore 117543
| | - John H. K. Yip
- Department of Chemistry, National University of Singapore, 3
Science Drive 3, Singapore 117543
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21
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López-Duarte I, Martínez-Díaz MV, Schwartz E, Koepf M, Kouwer PHJ, Rowan AE, Nolte RJM, Torres T. Postfunctionalization of Helical Polyisocyanopeptides with Phthalocyanine Chromophores by “Click Chemistry”. Chempluschem 2012. [DOI: 10.1002/cplu.201200087] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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22
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Yagai S, Usui M, Seki T, Murayama H, Kikkawa Y, Uemura S, Karatsu T, Kitamura A, Asano A, Seki S. Supramolecularly Engineered Perylene Bisimide Assemblies Exhibiting Thermal Transition from Columnar to Multilamellar Structures. J Am Chem Soc 2012; 134:7983-94. [DOI: 10.1021/ja302574b] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Shiki Yagai
- Department of Applied Chemistry & Biochemistry, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- CREST, Japan Science and Technology Agency (JST), 1-33 Yayoi-cho, Inage-ku,
Chiba 263-8522, Japan
| | - Mari Usui
- Department of Applied Chemistry & Biochemistry, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Tomohiro Seki
- Department of Applied Chemistry & Biochemistry, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Haruno Murayama
- Office
of Society-Academia Collaboration
for Innovation, Kyoto University, Yoshida-Honmachi,
Sakyo-ku, Kyoto 606-8501, Japan
| | - Yoshihiro Kikkawa
- National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8562, Japan
| | - Shinobu Uemura
- Department of Applied Chemistry & Biochemistry, Graduate School of Science and Technology, Kumamoto University, Kurokami 2-39-1, Kumamoto 860-8555, Japan
| | - Takashi Karatsu
- Department of Applied Chemistry & Biochemistry, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Akihide Kitamura
- Department of Applied Chemistry & Biochemistry, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Atsushi Asano
- Department of Applied Chemistry,
Graduate
School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Shu Seki
- Department of Applied Chemistry,
Graduate
School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
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23
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Melucci M, Durso M, Zambianchi M, Treossi E, Xia ZY, Manet I, Giambastiani G, Ortolani L, Morandi V, De Angelis F, Palermo V. Graphene–organic hybrids as processable, tunable platforms for pH-dependent photoemission, obtained by a new modular approach. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm33349j] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Sun Y, He C, Sun K, Li Y, Dong H, Wang Z, Li Z. Fine-tuned nanostructures assembled from L-lysine-functionalized perylene bisimides. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:11364-11371. [PMID: 21823641 DOI: 10.1021/la202107r] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Controllable nanostructures with tunable dimensions were obtained via self-assembly of CBZ-L-lysine-functionalized tetrachloroperylene bisimides (4ClPBI-Lys). Depending on the nature of substitute, solvent polarity, and sample concentration, 4ClPBI-Lys could form nanosphere, nanowire, nanobelt, and nanosheet, which were found to have different degree of molecular ordering. The effects of substitution position with respect to L-lysine on 4ClPBI were also explored in terms of assembly nanostructures. Hydrogen bonding was important to promote formation of long-range ordering. The nanostructures of different assemblies were characterized using SEM, TEM, XRD, UV-vis, and FTIR spectroscopy. For each obtained supramolecular assembly, we also found that the molecular packing motif ultimately determined the corresponding devices' electronic properties.
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Affiliation(s)
- Yan Sun
- Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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25
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Liscio A, Palermo V, Fenwick O, Braun S, Müllen K, Fahlman M, Cacialli F, Samorí P. Local surface potential of π-conjugated nanostructures by Kelvin probe force microscopy: effect of the sampling depth. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2011; 7:634-639. [PMID: 21280210 DOI: 10.1002/smll.201001770] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2010] [Indexed: 05/30/2023]
Abstract
Kelvin probe force microscopy (KPFM) is usually applied to map the local surface potential of nanostructured materials at surfaces and interfaces. KPFM is commonly defined as a 'surface technique', even if this assumption is not fully justified. However, a quantification of the surface sensitivity of this technique is crucial to explore electrical properties at the nanoscale. Here a versatile 3D model is presented which provides a quantitative explanation of KPFM results, taking into account the vertical structure of the sample. The model is tested on nanostructured films obtained from two relevant semiconducting systems for field-effect transistor and solar cell applications showing different interfacial properties, i.e., poly(3-hexylthiophene) (P3HT) and perylene-bis-dicarboximide (PDI). These findings are especially important since they enable quantitative determination of the local surface potential of conjugated nanostructures, and thereby pave the way towards optimization of the electronic properties of nanoscale architectures for organic electronic applications.
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Affiliation(s)
- Andrea Liscio
- Instituto per la Sintesi Organica e la Fotoreattività-Consiglio, Nazionale delle Ricerche, Via Gobetti 101, I-40129 Bologna, Italy
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26
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Zhou H, Johnson AT, Wiest O, Zhang L. Incorporation of porphyrin acetylides into duplexes of the simplified nucleic acid GNA. Org Biomol Chem 2011; 9:2840-9. [PMID: 21365112 DOI: 10.1039/c0ob00439a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A porphyrin-acetylide-modified GNA (glycol nucleic acid) phosphoramidite building block was synthesized in an economical fashion starting from (S)-glycidyl-4,4'- dimethoxytrityl ether in just 4 steps with an overall yield of 48%. The porphyrin acetylide nucleotide was incorporated into GNA duplexes opposite ethylene glycol abasic sites and the duplexes were analyzed by UV-melting, UV-vis, fluorescence spectroscopy, and circular dichroism. The modified GNA duplexes display lower thermal stabilities, however, the stabilities of the duplexes can be modulated by the incorporation of Zn(2+) (further destabilization) or Ni(2+) (stabilization relative to the uncomplexed porphyrin). Uncomplexed as well as Ni(2+)-coordinated porphyrins intercalate into the GNA duplex whereas Zn(2+)-coordinated porphyrins are most likely located outside the base stack. Adjacent porphyrins in opposite strands of GNA duplexes show an electronic interaction with each other which might be exploited in the future for the design of photoelectrical devices.
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Affiliation(s)
- Hui Zhou
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Straße, D-35032, Marburg, Germany
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Marangoni T, Mezzasalma SA, Llanes-Pallas A, Yoosaf K, Armaroli N, Bonifazi D. Thermosolutal self-organization of supramolecular polymers into nanocraters. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:1513-1523. [PMID: 21254759 DOI: 10.1021/la104276y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The ability of two complementary molecular modules bearing H-bonding uracilic and 2,6-(diacetylamino)pyridyl moieties to self-assemble and self-organize into submicrometer morphologies has been investigated by means of spectroscopic, thermogravimetric, and microscopic methods. Using uracilic (3)N-BOC-protected modules, it has been possible to thermally trigger the self-assembly/self-organization process of the two molecular modules, inducing the formation of objects on a mica surface that exhibit crater-like morphology and a very homogeneous size distribution. Confirmation of the presence of the hydrogen-bonding-driven self-assembly/self-organization process in solution was obtained by variable-temperature (VT) steady-state UV-vis absorption and emission measurements. The variation of the geometric and spatial features of the morphologies was monitored at different T by means of atomic force microscopy (AFM) and was interpreted by a nonequilibrium diffusion model for two chemical species in solution. The formation of nanostructures turned out to be affected by the solid substrate (molecular interactions at a solid-liquid interface), by the matter-momentum transport in solution (solute diffusivity D(0) and solvent kinematic viscosity ν), and the thermally dependent cleavage reaction of the BOC functions (T-dependent differential weight loss, θ = θ(Τ)) in a T interval extrapolated to ∼60 K. A scaling function, f = f (νD(0), ν/D(0), θ), relying on the onset condition of a concentration-driven thermosolutal instability has been established to simulate the T-dependent behavior of the structural dimension (i.e., height and radius) of the self-organized nanostructures as ⟨h⟩ ≈ f (T) and ⟨r⟩ ≈ 1/f (T).
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Affiliation(s)
- Tomas Marangoni
- Dipartimento di Scienze Farmaceutiche and UdR INSTM, Università di Trieste, Trieste, Italy
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Gibson HW, Jones JW, Zakharov LN, Rheingold AL, Slebodnick C. Complexation Equilibria Involving Salts in Non‐Aqueous Solvents: Ion Pairing and Activity Considerations. Chemistry 2011; 17:3192-206. [DOI: 10.1002/chem.201002522] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2010] [Indexed: 11/12/2022]
Affiliation(s)
- Harry W. Gibson
- Department of Chemistry, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061‐0212 (USA)
| | - Jason W. Jones
- Department of Chemistry, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061‐0212 (USA)
- Present address: E.I. duPont de Nemours and Company, Wilmington, DE 19880‐0402 (USA)
| | - Lev N. Zakharov
- Department of Chemistry, University of Delaware, Newark, DE 19716 (USA)
- Present address: X‐ray Crystallography Facility, University of Oregon, Eugene, Oregon 97403 (USA)
| | - Arnold L. Rheingold
- Department of Chemistry, University of Delaware, Newark, DE 19716 (USA)
- Present address: Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093 (USA)
| | - Carla Slebodnick
- Department of Chemistry, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061‐0212 (USA)
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Gowda CM, Vasconcelos F, Schwartz E, van Eck ERH, Marsman M, Cornelissen JJLM, Rowan AE, de Wijs GA, Kentgens APM. Hydrogen bonding and chemical shift assignments in carbazole functionalized isocyanides from solid-state NMR and first-principles calculations. Phys Chem Chem Phys 2011; 13:13082-95. [DOI: 10.1039/c1cp20304e] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Schwartz E, Koepf M, Kitto HJ, Nolte RJM, Rowan AE. Helical poly(isocyanides): past, present and future. Polym Chem 2011. [DOI: 10.1039/c0py00246a] [Citation(s) in RCA: 201] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Chen L, Revel S, Morris K, Adams DJ. Energy transfer in self-assembled dipeptide hydrogels. Chem Commun (Camb) 2010; 46:4267-9. [DOI: 10.1039/c003052j] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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