1
|
Sogawa H. Development of chiral functional materials based on natural chiral compounds. Polym J 2022. [DOI: 10.1038/s41428-022-00677-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
2
|
Kar S, Swathi K, Sissa C, Painelli A, Thomas KG. Emergence of Chiroptical Properties in Molecular Assemblies of Phenyleneethynylenes: The Role of Quasi-degenerate Excitations. J Phys Chem Lett 2018; 9:4584-4590. [PMID: 30040428 DOI: 10.1021/acs.jpclett.8b01988] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Chiroptical properties of supramolecular assemblies originate through the asymmetric coupling of molecular transition dipole moments. Herein, we report a joint experimental and theoretical investigation to understand the influence of intermolecular interactions on chiroptical properties, particularly during the early stages of self-assembly. In this regard, phenyleneethynylene-based molecular systems appended with d- and l-isomers of phenylalanine have been synthesized with one as well as two electronic transitions in the spectral region of interest. When self-assembled, these molecules show distinctly different chiroptical properties with the right- and left-handed organizations, guided by the chirality of phenylalanines. The standard exciton approach explains the observation of a bisignated electronic circular dichroism signal in systems with a single transition but fails when applied to systems with two nearby transitions. Here, we present a generalized exciton approach that addresses the unusual chiroptical properties of systems with multiple transitions.
Collapse
Affiliation(s)
- Sabnam Kar
- School of Chemistry , Indian Institute of Science Education and Research Thiruvananthapuram (IISER-TVM) , Trivandrum 695551 , India
| | - K Swathi
- School of Chemistry , Indian Institute of Science Education and Research Thiruvananthapuram (IISER-TVM) , Trivandrum 695551 , India
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale , University of Parma , 43124 Parma , Italy
| | - Cristina Sissa
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale , University of Parma , 43124 Parma , Italy
| | - Anna Painelli
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale , University of Parma , 43124 Parma , Italy
| | - K George Thomas
- School of Chemistry , Indian Institute of Science Education and Research Thiruvananthapuram (IISER-TVM) , Trivandrum 695551 , India
| |
Collapse
|
3
|
Yokoyama A, Saiki T, Masu H, Azumaya I, Yokozawa T. Effect of the α-substituted chiral side chain on the helical conformation of N-substituted poly(p-benzamide). POLYMER 2018. [DOI: 10.1016/j.polymer.2017.11.066] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
4
|
Abou Matar T, Karam P. The Role of Hydrophobicity in the Cellular Uptake of Negatively Charged Macromolecules. Macromol Biosci 2017; 18. [DOI: 10.1002/mabi.201700309] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 11/09/2017] [Indexed: 12/18/2022]
Affiliation(s)
- Tamara Abou Matar
- Department of Chemistry; American University of Beirut; P.O. Box 11-0236 Beirut Lebanon
| | - Pierre Karam
- Department of Chemistry; American University of Beirut; P.O. Box 11-0236 Beirut Lebanon
| |
Collapse
|
5
|
Abstract
Nature makes use of tubular structures for the spatial separation of matter on many different length scales, ranging from the nanometer scale (selective channels based on folded proteins) up to the centimeter scale (blood vessels). Today, polymer chemists and engineers can prepare polymeric tubular structures via a variety of different methods also covering many lengthscales, from nanometers to meters. The synthetic approaches described in this chapter vary significantly from the folding of single polymer chains via the self-assembly of DNA fragments to coordinative metal-organic nanotubes to tubes engineerd from bulk polymers using a range of porous or fibrous templates. While all examples reported in this chapter form tubular structures and thereby mimic their naturally occuring counterparts, it is mainly the engineered tubes that are more straightforward to prepare that also show some bio-inspired function.
Collapse
Affiliation(s)
- Samantha Doninelli
- Department of Chemistry, University of Fribourg Chemin du Musée 9 CH-1700 Fribourg Switzerland
| | - Michael Badoux
- Department of Chemistry, University of Fribourg Chemin du Musée 9 CH-1700 Fribourg Switzerland
| | - Andreas F. M. Kilbinger
- Department of Chemistry, University of Fribourg Chemin du Musée 9 CH-1700 Fribourg Switzerland
| |
Collapse
|
6
|
Huang YQ, Zhong YY, Zhang R, Zhao YK, Liu XF, Zhang GW, Fan QL, Wang LH, Huang W. Tuning the backbones and side chains of cationic meta-linked poly(phenylene ethynylene)s: Different conformational modes, tunable light emission, and helical wrapping of multi-walled carbon nanotubes. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.08.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
7
|
Chan K, Yik-Sham Chung C, Wing-Wah Yam V. Parallel folding topology-selective label-free detection and monitoring of conformational and topological changes of different G-quadruplex DNAs by emission spectral changes via FRET of mPPE-Ala-Pt(ii) complex ensemble. Chem Sci 2016; 7:2842-2855. [PMID: 30090278 PMCID: PMC6055111 DOI: 10.1039/c5sc04563k] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 01/05/2016] [Indexed: 12/28/2022] Open
Abstract
The formation of supramolecular assemblies between [Pt(bzimpy-Et){C[triple bond, length as m-dash]CC6H4(CH2NMe3-4)}]Cl2 (1) and mPPE-Ala and the FRET properties of the ensemble have been revealed from the UV-vis absorption, steady-state emission and time-resolved emission decay studies. The two-component mPPE-Ala-1 ensemble has been employed in a "proof-of-principle" concept for label-free detection of G-quadruplex DNAs with the intramolecular propeller parallel folding topology, such as c-myc, in aqueous buffer solution. By the modulation of the aggregation/deaggregation of the polymer-metal complex aggregates and hence the FRET from the mPPE-Ala donor to the aggregated 1 as acceptor, the ensemble has been demonstrated for sensitive and selective label-free detection of c-myc via the monitoring of emission spectral changes of the ensemble. Ratiometric emission of the ensemble at 461 and 662 nm has been shown to distinguish the intramolecular propeller parallel G-quadruplex folding topology of c-myc from other G-quadruplex-forming sequences of different folding topologies, owing to the strong and specific interactions between c-myc and 1 as suggested by the UV-vis absorption and UV melting studies. In addition, the formation of high-order intermolecular multimeric G-quadruplexes from c-myc under molecular crowding conditions has been successfully probed by the ratiometric emission of the ensemble. The conformational and topological transition of human telomeric DNA from the mixed-hybrid form to the intramolecular propeller parallel form, as observed from the circular dichroism spectroscopy, has also been monitored by the ratiometric emission of the ensemble. The ability of the ensemble to detect these conformational and topological transitions of G-quadruplex DNAs has been rationalized by the excellent selectivity and sensitivity of the ensemble towards the intramolecular propeller parallel G-quadruplex DNAs and their high-order intermolecular multimers, which are due to the extra stabilization gained from Pt···Pt and π-π interactions in addition to the electrostatic and hydrophobic interactions found in the polymer-metal complex aggregates.
Collapse
Affiliation(s)
- Kevin Chan
- Institute of Molecular Functional Materials (Areas of Excellence Scheme, University Grants Committee (Hong Kong)) , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , P. R. China .
| | - Clive Yik-Sham Chung
- Institute of Molecular Functional Materials (Areas of Excellence Scheme, University Grants Committee (Hong Kong)) , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , P. R. China .
| | - Vivian Wing-Wah Yam
- Institute of Molecular Functional Materials (Areas of Excellence Scheme, University Grants Committee (Hong Kong)) , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , P. R. China .
| |
Collapse
|
8
|
Chan K, Chung CY, Yam VW. Conjugated Polyelectrolyte‐Induced Self‐Assembly of Alkynylplatinum(II) 2,6‐Bis(benzimidazol‐2′‐yl)pyridine Complexes. Chemistry 2015; 21:16434-47. [DOI: 10.1002/chem.201501804] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Kevin Chan
- Institute of Molecular Functional Materials (Areas of Excellence Scheme, University Grants Committee (Hong Kong)) and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong (P. R. China)
| | - Clive Yik‐Sham Chung
- Institute of Molecular Functional Materials (Areas of Excellence Scheme, University Grants Committee (Hong Kong)) and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong (P. R. China)
| | - Vivian Wing‐Wah Yam
- Institute of Molecular Functional Materials (Areas of Excellence Scheme, University Grants Committee (Hong Kong)) and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong (P. R. China)
| |
Collapse
|
9
|
Suzuki S, Matsuura K, Nakazono K, Takata T. Effect of a side chain rotaxane structure on the helix-folding of poly(m-phenylene diethynylene). Polym J 2014. [DOI: 10.1038/pj.2014.4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
10
|
Zhu X, Yang J, Schanze KS. Conjugated polyelectrolytes with guanidinium side groups. Synthesis, photophysics and pyrophosphate sensing. Photochem Photobiol Sci 2014; 13:293-300. [DOI: 10.1039/c3pp50288k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
11
|
Sogawa H, Miyagi Y, Shiotsuki M, Sanda F. Synthesis of Novel Optically Active Poly(phenyleneethynylene–aryleneethynylene)s Bearing Hydroxy Groups. Examination of the Chiroptical Properties and Conjugation Length. Macromolecules 2013. [DOI: 10.1021/ma401730e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hiromitsu Sogawa
- Department
of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura Campus, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yu Miyagi
- Department
of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura Campus, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Masashi Shiotsuki
- Molecular
Engineering Institute, Kinki University, Kayanomori, Iizuka, Fukuoka 820-8555, Japan
| | - Fumio Sanda
- Department
of Chemistry and Materials Engineering, Faculty of Chemistry, Materials
and Bioengineering, Kansai University, 3-3-35 Yamate-cho, Suita, Osaka 564-8680, Japan
| |
Collapse
|
12
|
Sogawa H, Shiotsuki M, Hirao T, Haino T, Sanda F. Synthesis of Optically Active Poly(m-phenyleneethynylene–aryleneethynylene)s Bearing Hydroxy Groups and Examination of the Higher Order Structures. Macromolecules 2013. [DOI: 10.1021/ma4017295] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hiromitsu Sogawa
- Department of Polymer Chemistry, Graduate
School of Engineering, Kyoto University, Katsura
Campus, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Masashi Shiotsuki
- Molecular
Engineering Institute, Kinki University, Kayanomori, Iizuka, Fukuoka 820-8555, Japan
| | - Takehiro Hirao
- Graduate
School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Takeharu Haino
- Graduate
School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Fumio Sanda
- Department
of Chemistry and Materials Engineering, Faculty of Chemistry, Materials
and Bioengineering, Kansai University, 3-3-35 Yamate-cho, Suita, Osaka 564-8680, Japan
| |
Collapse
|
13
|
Divya KP, Sreejith S, Suresh CH, Philips DS, Ajayaghosh A. Chain Folding Controlled by an Isomeric Repeat Unit: Helix Formation versus Random Aggregation in Acetylene-Bridged Carbazole-Bipyridine Co-Oligomers. Chem Asian J 2013; 8:1579-86. [DOI: 10.1002/asia.201300132] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Indexed: 11/06/2022]
|
14
|
Yong X, Wan W, Su M, You W, Lu X, Yan Y, Qu J, Liu R, Masuda T. Thiourea-functionalized poly(phenyleneethynylene): fluorescent chemosensors for anions and cations. Polym Chem 2013. [DOI: 10.1039/c3py00359k] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
15
|
Danesh CD, Starkweather NS, Zhang S. In Situ Study of Dynamic Conformational Transitions of a Water-Soluble Poly(3-hexylthiophene) Derivative by Surfactant Complexation. J Phys Chem B 2012; 116:12887-94. [DOI: 10.1021/jp307728r] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Cameron D. Danesh
- Department of Chemistry and Biochemistry, California Polytechnic State University, San Luis Obispo,
California 93407, United States
| | - Nathan S. Starkweather
- Department of Chemistry and Biochemistry, California Polytechnic State University, San Luis Obispo,
California 93407, United States
| | - Shanju Zhang
- Department of Chemistry and Biochemistry, California Polytechnic State University, San Luis Obispo,
California 93407, United States
| |
Collapse
|
16
|
Cantin K, Lafleur-Lambert A, Dufour P, Morin JF. Studies Toward the Synthesis of Phenylacetylene Macrocycle Based Rotaxane Precursors as Building Blocks for Organic Nanotubes. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200655] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
17
|
Feng F, Lee SH, Schanze KS. "Light Switch" Effect Upon Binding of Ru-dppz to Water-Soluble Conjugated Polyelectrolyte Dendrimers. J Phys Chem Lett 2012; 3:1707-1710. [PMID: 26285732 DOI: 10.1021/jz3005738] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report the "light switch" effect of [Ru(bpy)2(dppz)](2+) (where bpy = 2,2'-bipyridine and dppz = dipyrido[3,2-a:2',3'-c] phenazine, Ru-dppz) in the presence of anionic conjugated polyelectrolyte dendrimers (CPDs). The metal-to-ligand charge-transfer luminescence from Ru-dppz is efficient in the presence of CPD because the complex is shielded from water by binding to the hydrophobic dendrimer core.
Collapse
Affiliation(s)
- Fude Feng
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Seoung Ho Lee
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Kirk S Schanze
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| |
Collapse
|
18
|
Wu D, Feng F, Xie D, Chen Y, Tan W, Schanze KS. Helical Conjugated Polyelectrolyte Aggregation Induced by Biotin-Avidin Interaction. J Phys Chem Lett 2012; 3:1711-5. [PMID: 26285733 DOI: 10.1021/jz300452t] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Fluorescence correlation spectroscopy (FCS) is applied to demonstrate avidin-induced cross-linking in a system consisting of a helical anionic conjugated polyelectrolyte (P1) and a biotin-tetramethylrhodamine (TMR) conjugate (2). In a previous study, we used fluorescence spectroscopy to demonstrate that 2 binds to P1 via intercalation of the TMR chromophore into the P1 helix. Addition of avidin to the P1/2 complex induces little change in the fluorescence of the system; however, FCS reveals a remarkable increase in the diffusion time of the P1/2 complex in the presence of avidin. This change is attributed to supramolecular polymer aggregates produced by cross-link formation between the biotin unit of intercalated 2 and avidin. Atomic force microscopy imaging provides evidence supporting the existence of these aggregates. The highly sensitive FCS method is used to develop a novel sensor for the biotin-avidin interaction, with a detection limit of <100 pM for avidin.
Collapse
Affiliation(s)
- Danlu Wu
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Fude Feng
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Dongping Xie
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Yan Chen
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Weihong Tan
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Kirk S Schanze
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| |
Collapse
|
19
|
Abe H, Makida H, Inouye M. Development of convergent synthetic method for saccharide-linked ethynylpyridine foldamers by Huisgen reaction. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.02.069] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
20
|
Hashimoto A, Sogawa H, Shiotsuki M, Sanda F. Stabilization of higher-order structure of poly(phenyleneethynylene)s by metathesis polymerization at the side chains. POLYMER 2012. [DOI: 10.1016/j.polymer.2012.04.028] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
21
|
Banno M, Yamaguchi T, Nagai K, Kaiser C, Hecht S, Yashima E. Optically Active, Amphiphilic Poly(meta-phenylene ethynylene)s: Synthesis, Hydrogen-Bonding Enforced Helix Stability, and Direct AFM Observation of Their Helical Structures. J Am Chem Soc 2012; 134:8718-28. [DOI: 10.1021/ja303204m] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Motonori Banno
- Department of Molecular Design
and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Tomoko Yamaguchi
- Department of Molecular Design
and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Kanji Nagai
- Department of Molecular Design
and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Christian Kaiser
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse
2, 12489 Berlin, Germany
| | - Stefan Hecht
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse
2, 12489 Berlin, Germany
| | - Eiji Yashima
- Department of Molecular Design
and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya, 464-8603, Japan
| |
Collapse
|
22
|
Suzuki S, Ishiwari F, Nakazono K, Takata T. Reversible helix-random coil transition of poly(m-phenylenediethynylene) by a rotaxane switch. Chem Commun (Camb) 2012; 48:6478-80. [PMID: 22453762 DOI: 10.1039/c2cc18116a] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Pendant rotaxane switch-tethering poly(m-phenylene diethynylene) was synthesized by the polyoxidative coupling of a rotaxane containing an axle-terminal m-diethynylbenzene group and an optically active crown ether. The reversible helix-random coil transition of the polymer was successfully performed by the positional switching of the rotaxane wheel.
Collapse
Affiliation(s)
- Sakiko Suzuki
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology, 2-12-1 (H-126), O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | | | | | | |
Collapse
|
23
|
Wu X, Xu B, Tong H, Wang L. Meta-linked and para-linked water-soluble poly(arylene ethynylene)s with amino acid side chains: Effects of different linkage on Hg2+ ion sensing properties in aqueous media. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.25914] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
24
|
Cao J, Kline M, Chen Z, Luan B, Lv M, Zhang W, Lian C, Wang Q, Huang Q, Wei X, Deng J, Zhu J, Gong B. Preparation and helical folding of aromatic polyamides. Chem Commun (Camb) 2012; 48:11112-4. [DOI: 10.1039/c2cc35886g] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
25
|
Synthesis and characterization of optically active poly(phenylene-ethynylene)s containing chiral oxazoline derivatives. Polym J 2011. [DOI: 10.1038/pj.2011.129] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
26
|
Xie D, Parthasarathy A, Schanze KS. Aggregation-induced amplified quenching in conjugated polyelectrolytes with interrupted conjugation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:11732-11736. [PMID: 21861519 DOI: 10.1021/la202122p] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A pair of anionic conjugated polyelectrolytes that contain three-ring (phenylene ethynylene) units linked by a single -CH(2)- or -O- tether (P1 and P2, respectively) are studied. The linkers serve to interrupt the π conjugation along the polymer backbone. Fluorescence spectroscopy reveals that P2 forms a fluorescent aggregate in methanol and water; however, the fluorescence of P1 is much weaker in water, and P1 exhibits only weak aggregate fluorescence. Fluorescence quenching of the polymers was examined using methyl viologen (MV(2+)) as a cationic quencher. P1 shows only a weak amplified quenching effect, with a Stern-Volmer quenching constant of K(SV) ≈ 6 × 10(5) M(-1) in methanol. Interestingly, for P2 in methanol, the aggregate emission is strongly quenched with K(SV) ≈ 5 × 10(6) M(-1), which is comparable to the highest quenching efficiency observed for fully π-conjugated polyelectrolytes. By contrast, the monomer emission is quenched much less efficiently, with K(SV) ≈ 2 × 10(5) M(-1). The results are explained by a model in which -O- linked polymer P2 is able to fold into a helical conformation in solution, which facilitates the formation of extended π-stacked aggregates allowing long-distance exciton transport.
Collapse
Affiliation(s)
- Dongping Xie
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, USA
| | | | | |
Collapse
|
27
|
Sogawa H, Shiotsuki M, Matsuoka H, Sanda F. Synthesis, Chiroptical Properties, and Photoresponsiveness of Optically Active Poly(m-phenyleneethynylene)s Containing Azobenzene Moieties. Macromolecules 2011. [DOI: 10.1021/ma200281e] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hiromitsu Sogawa
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura Campus, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Masashi Shiotsuki
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura Campus, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Hideki Matsuoka
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura Campus, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Fumio Sanda
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura Campus, Nishikyo-ku, Kyoto 615-8510, Japan
| |
Collapse
|
28
|
Cantin K, Rondeau-Gagné S, Néabo JR, Daigle M, Morin JF. H-Bonding-driven gel formation of a phenylacetylene macrocycle. Org Biomol Chem 2011; 9:4440-3. [DOI: 10.1039/c1ob05441d] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
29
|
Ji E, Wu D, Schanze KS. Intercalation-FRET biosensor with a helical conjugated polyelectrolyte. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:14427-14429. [PMID: 20726613 DOI: 10.1021/la1030334] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A biotin-tetramethylrhodamine (biotin-TMR) quencher-ligand interacts with a (phenylene-ethynylene) based helical conjugated polyelectrolyte (poly-1) via intercalation of the TMR unit into the helix. The interaction is signaled by efficient fluorescence resonance energy transfer (FRET) from the polymer to the TMR chromophore. Avidin addition to the poly-1/biotin-TMR intercalation complex does not interrupt FRET, instead resulting in the formation of avidin-biotin "cross-links". Mixing of biotin-TMR with avidin prior to addition of the polymer efficiently disrupts the FRET signal, giving rise to a sensor with a detection limit of 100 pM for avidin. Study of the FRET response as a function of biotin-TMR and avidin concentration affords insight into the interaction of the protein with the poly-1/biotin-TMR intercalation complex.
Collapse
Affiliation(s)
- Eunkyung Ji
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, USA
| | | | | |
Collapse
|
30
|
Liu R, Sogawa H, Shiotsuki M, Masuda T, Sanda F. Tyrosine-based poly(m-phenyleneethynylene-p-phenyleneethynylene)s. Helix folding and responsiveness to a base. POLYMER 2010. [DOI: 10.1016/j.polymer.2010.03.048] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
31
|
Ni BB, Yan Q, Ma Y, Zhao D. Recent advances in arylene ethynylene folding systems: Toward functioning. Coord Chem Rev 2010. [DOI: 10.1016/j.ccr.2010.02.004] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
32
|
Divya KP, Sreejith S, Suresh CH, Ajayaghosh A. Conformational control in a bipyridine linked π-conjugated oligomer: cation mediated helix unfolding and refolding. Chem Commun (Camb) 2010; 46:8392-4. [DOI: 10.1039/c0cc03287e] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
33
|
Yashima E, Maeda K, Iida H, Furusho Y, Nagai K. Helical Polymers: Synthesis, Structures, and Functions. Chem Rev 2009; 109:6102-211. [PMID: 19905011 DOI: 10.1021/cr900162q] [Citation(s) in RCA: 1261] [Impact Index Per Article: 84.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Eiji Yashima
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan, and Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Katsuhiro Maeda
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan, and Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Hiroki Iida
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan, and Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Yoshio Furusho
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan, and Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Kanji Nagai
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan, and Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| |
Collapse
|
34
|
Jiang H, Taranekar P, Reynolds JR, Schanze KS. Conjugated polyelectrolytes: synthesis, photophysics, and applications. Angew Chem Int Ed Engl 2009; 48:4300-16. [PMID: 19444838 DOI: 10.1002/anie.200805456] [Citation(s) in RCA: 499] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Organic optoelectronic polymers have evolved to the point where fine structural control of the conjugated main chain, coupled with solubilizing and property-modifying pendant substituents, provides an entirely new class of materials. Conjugated polyelectrolytes (CPEs) provide a unique set of properties, including water solubility and processability, main-chain-controlled exciton and charge transport, variable band gap light absorption and fluorescence, ionic interactions, and aggregation phenomena. These characteristics allow these materials to be considered for use in applications ranging from light-emitting diodes and electrochromic color-changing displays, to photovoltaic devices and photodetectors, along with chemical and biological sensors. This Review describes the evolution of CPE structures from simple polymers to complex materials, describes numerous photophysical aspects, including amplified quenching in macromolecules and aggregates, and illustrates how the physical and electronic properties lead to useful applications in devices.
Collapse
Affiliation(s)
- Hui Jiang
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, FL 32611-7200, USA
| | | | | | | |
Collapse
|
35
|
Wang Y, Li F, Han Y, Wang F, Jiang H. Folding and Aggregation of Cationic Oligo(aryl-triazole)s in Aqueous Solution. Chemistry 2009; 15:9424-33. [DOI: 10.1002/chem.200900546] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
36
|
Liu R, Shiotsuki M, Masuda T, Sanda F. Synthesis and Chiroptical Properties of Hydroxyphenylglycine-Based Poly(m-phenyleneethynylene-p-phenyleneethynylene)s. Macromolecules 2009. [DOI: 10.1021/ma900910k] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ruiyuan Liu
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura Campus, Kyoto 615-8510, Japan
| | - Masashi Shiotsuki
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura Campus, Kyoto 615-8510, Japan
| | - Toshio Masuda
- Faculty of Engineering, Department of Environmental and Biological Chemistry, Fukui University of Technology, 3-6-1 Gakuen, Fukui 910-8505, Japan
| | - Fumio Sanda
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura Campus, Kyoto 615-8510, Japan
| |
Collapse
|
37
|
Jiang H, Taranekar P, Reynolds J, Schanze K. Konjugierte Polyelektrolyte: Synthese, Photophysik und Anwendungen. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200805456] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
38
|
Liu R, Sanda F, Masuda T. Synthesis of Helical Poly(Phenyleneethynylene-Pyromellitic Diimide)s and the Responsiveness of the Helicity to Solvents, Heat, and pH. MACROMOL CHEM PHYS 2009. [DOI: 10.1002/macp.200800503] [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]
|
39
|
Naidu VR, Kim MC, Suk JM, Kim HJ, Lee M, Sim E, Jeong KS. Biased Helical Folding of Chiral Oligoindole Foldamers. Org Lett 2008; 10:5373-6. [DOI: 10.1021/ol8022243] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Min Cheol Kim
- Department of Chemistry, Yonsei University, Seoul-120-749 Korea
| | - Jae-min Suk
- Department of Chemistry, Yonsei University, Seoul-120-749 Korea
| | - Ho-Joong Kim
- Department of Chemistry, Yonsei University, Seoul-120-749 Korea
| | - Myongsoo Lee
- Department of Chemistry, Yonsei University, Seoul-120-749 Korea
| | - Eunji Sim
- Department of Chemistry, Yonsei University, Seoul-120-749 Korea
| | - Kyu-Sung Jeong
- Department of Chemistry, Yonsei University, Seoul-120-749 Korea
| |
Collapse
|
40
|
Abe H, Murayama D, Kayamori F, Inouye M. Saccharide-Linked Ethynylpyridine Oligomers: Primary Structures Encode Chiral Helices. Macromolecules 2008. [DOI: 10.1021/ma801470r] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hajime Abe
- Graduate School of Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan, and PRESTO, JST, Tokyo 102-0075, Japan
| | - Daisuke Murayama
- Graduate School of Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan, and PRESTO, JST, Tokyo 102-0075, Japan
| | - Fumihiro Kayamori
- Graduate School of Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan, and PRESTO, JST, Tokyo 102-0075, Japan
| | - Masahiko Inouye
- Graduate School of Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan, and PRESTO, JST, Tokyo 102-0075, Japan
| |
Collapse
|
41
|
Liu R, Sanda F, Masuda T. Synthesis and Properties of Glutamic Acid-Derived Optically Active Phenyleneethynylene-Based Helical Polymers. Macromolecules 2008. [DOI: 10.1021/ma800674f] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ruiyuan Liu
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura Campus, Kyoto 615-8510, Japan
| | - Fumio Sanda
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura Campus, Kyoto 615-8510, Japan
| | - Toshio Masuda
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura Campus, Kyoto 615-8510, Japan
| |
Collapse
|