1
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Fortunato A, Hensel RC, Casalini S, Mba M. Self-Assembly and Electrical Conductivity of a New [1]benzothieno[3,2-b][1]-benzothiophene (BTBT)-Peptide Hydrogel. Molecules 2023; 28:molecules28072917. [PMID: 37049680 PMCID: PMC10095725 DOI: 10.3390/molecules28072917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/22/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023] Open
Abstract
The conjugation of small-molecule semiconductors with self-assembling peptides is a powerful tool for the fabrication of supramolecular soft materials for organic electronics and bioelectronics. Herein, we introduced the benchmark organic semiconductor [1]benzothieno[3,2-b][1]-benzothiophene (BTBT) within the structure of a self-assembling amphipathic peptide. The molecular structure of the conjugate was rationally designed to favour π-π stacking between BTBT cores and π-delocalization within the self-assembled architectures. Hydrogels with fibrillar structure were obtained upon self-assembly. Spectroscopic studies confirmed that both hydrogen bonding between peptide segments and π-π stacking between BTBT chromophores are responsible for the formation of the 3D fibrillar network observed by transmission electron microscopy. The hydrogel was successfully deposited on gold interdigitated electrodes and a conductivity up to 1.6 (±0.1) × 10−5 S cm−1 was measured.
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2
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Njenga SM, Wang X, Jiang W, Wan X. Nanostructure Control of a Regioregular Poly(3-alkylthiophene) Using an Oligopeptide Side Chain. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b02739] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Samuel Mirie Njenga
- CAS Key Laboratory of Bio-Based Materials, Qingdao Institute of Bioenergy & Bioprocess Technology, Chinese Academy of Sciences, 189 Songling Road, Qingdao 266101, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Xiao Wang
- CAS Key Laboratory of Bio-Based Materials, Qingdao Institute of Bioenergy & Bioprocess Technology, Chinese Academy of Sciences, 189 Songling Road, Qingdao 266101, People’s Republic of China
| | - Wei Jiang
- National Engineering Research Center for Organic Pollution Control and Resource Reuse, State Key Laboratory of Pollution and Resource Reuse, School of the Environment, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu Province 210093, P. R. China
| | - Xiaobo Wan
- CAS Key Laboratory of Bio-Based Materials, Qingdao Institute of Bioenergy & Bioprocess Technology, Chinese Academy of Sciences, 189 Songling Road, Qingdao 266101, People’s Republic of China
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Chemical & Environmental Engineering, Jianghan University, Wuhan 430056, P. R. China
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3
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Lee T, Panda SS, Tovar JD, Katz HE. Unusually Conductive Organic-Inorganic Hybrid Nanostructures Derived from Bio-Inspired Mineralization of Peptide/Pi-Electron Assemblies. ACS NANO 2020; 14:1846-1855. [PMID: 31999098 DOI: 10.1021/acsnano.9b07911] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Supramolecular materials derived from pi-conjugated peptidic macromolecules are well-established to self-assemble into 1D nanostructures. In the presence of KOH, which was used to more fully dissolve the peptide macromolecules prior to triggering the self-assembly by way of exposure to HCl vapor, we report here an unexpected mineralization of KCl as templated presumably by the glutamic acid residues that were present along the backbone of the peptide macromolecules. In order to decouple the peptidic side chains from the central pi-electron unit, three-carbon spacers were added between them on both sides. The assembled structures that resulted from the collective formation of β-sheets, π-orbital overlaps, and mineralization resulted in highly interconnected dendritic structures under suitable KOH concentrations. Electrical measurements indicated that when well-interconnected, these dendritic structures maintained conductivities comparable to those of metals at around 1800 S/cm. About 50 mA current was measured for 0.5 V/37.5 μm. Varying the gate voltage in a transistor configuration had no effect on the current levels, indicating a conductive instead of a semiconducting pathway. Control experiments without the peptide, measurements of conductivity over time, and conductivity quenching by ammonia suggested the conductivity of these dendritic networks was derived from proton doping of the central π-electron units in a strong acid environment and was facilitated by closely spaced chromophores, as suggested in the literature, leading to facile π-electron transfer along the interconnected dendritic pathways. Our findings suggest that mineralization templated by appropriate amino acids combined with peptide/π-electron self-assembly can lead to highly conductive dendritic macrostructures as well as control of nanowire growth in specific directions.
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Affiliation(s)
- Taein Lee
- Department of Materials Science and Engineering and Department of Chemistry , Johns Hopkins University , 3400 North Charles Street , Baltimore , Maryland 21218 , United States
| | - Sayak Subhra Panda
- Department of Materials Science and Engineering and Department of Chemistry , Johns Hopkins University , 3400 North Charles Street , Baltimore , Maryland 21218 , United States
| | - John D Tovar
- Department of Materials Science and Engineering and Department of Chemistry , Johns Hopkins University , 3400 North Charles Street , Baltimore , Maryland 21218 , United States
| | - Howard E Katz
- Department of Materials Science and Engineering and Department of Chemistry , Johns Hopkins University , 3400 North Charles Street , Baltimore , Maryland 21218 , United States
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4
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Shimizu T, Ding W, Kameta N. Soft-Matter Nanotubes: A Platform for Diverse Functions and Applications. Chem Rev 2020; 120:2347-2407. [PMID: 32013405 DOI: 10.1021/acs.chemrev.9b00509] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Self-assembled organic nanotubes made of single or multiple molecular components can be classified into soft-matter nanotubes (SMNTs) by contrast with hard-matter nanotubes, such as carbon and other inorganic nanotubes. To date, diverse self-assembly processes and elaborate template procedures using rationally designed organic molecules have produced suitable tubular architectures with definite dimensions, structural complexity, and hierarchy for expected functions and applications. Herein, we comprehensively discuss every functions and possible applications of a wide range of SMNTs as bulk materials or single components. This Review highlights valuable contributions mainly in the past decade. Fifteen different families of SMNTs are discussed from the viewpoints of chemical, physical, biological, and medical applications, as well as action fields (e.g., interior, wall, exterior, whole structure, and ensemble of nanotubes). Chemical applications of the SMNTs are associated with encapsulating materials and sensors. SMNTs also behave, while sometimes undergoing morphological transformation, as a catalyst, template, liquid crystal, hydro-/organogel, superhydrophobic surface, and micron size engine. Physical functions pertain to ferro-/piezoelectricity and energy migration/storage, leading to the applications to electrodes or supercapacitors, and mechanical reinforcement. Biological functions involve artificial chaperone, transmembrane transport, nanochannels, and channel reactors. Finally, medical functions range over drug delivery, nonviral gene transfer vector, and virus trap.
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Affiliation(s)
- Toshimi Shimizu
- Nanomaterials Research Institute, Department of Materials and Chemistry , National Institute of Advanced Industrial Science and Technology , Tsukuba Central 5, 1-1-1 Higashi , Tsukuba , Ibaraki 305-8565 , Japan
| | - Wuxiao Ding
- Nanomaterials Research Institute, Department of Materials and Chemistry , National Institute of Advanced Industrial Science and Technology , Tsukuba Central 5, 1-1-1 Higashi , Tsukuba , Ibaraki 305-8565 , Japan
| | - Naohiro Kameta
- Nanomaterials Research Institute, Department of Materials and Chemistry , National Institute of Advanced Industrial Science and Technology , Tsukuba Central 5, 1-1-1 Higashi , Tsukuba , Ibaraki 305-8565 , Japan
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5
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Sabury S, Adams TJ, Kocherga M, Kilbey SM, Walter MG. Synthesis and optoelectronic properties of benzodithiophene-based conjugated polymers with hydrogen bonding nucleobase side chain functionality. Polym Chem 2020. [DOI: 10.1039/d0py00972e] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nucleobase functionalities in conjugated, alternating copolymers participate in interbase hydrogen bonding, which promotes molecular assembly and organization in thin films and enhances optical and electronic properties.
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Affiliation(s)
- Sina Sabury
- Department of Chemistry
- University of Tennessee – Knoxville
- Knoxville
- USA
| | - Tyler J. Adams
- Department of Chemistry
- University of North Carolina – Charlotte
- Charlotte
- USA
| | - Margaret Kocherga
- Department of Chemistry
- University of North Carolina – Charlotte
- Charlotte
- USA
| | - S. Michael Kilbey
- Department of Chemistry
- University of Tennessee – Knoxville
- Knoxville
- USA
- Department of Chemical & Biomolecular Engineering
| | - Michael G. Walter
- Department of Chemistry
- University of North Carolina – Charlotte
- Charlotte
- USA
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6
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Mushtaq I, Akhter Z, Shah FU. Tunable Self-Assembled Nanostructures of Electroactive PEGylated Tetra(Aniline) Based ABA Triblock Structures in Aqueous Medium. Front Chem 2019; 7:518. [PMID: 31403042 PMCID: PMC6669400 DOI: 10.3389/fchem.2019.00518] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 07/08/2019] [Indexed: 01/22/2023] Open
Abstract
PEGylated tetra(aniline) ABA triblock structure PEG-TANI-PEG (2) consisting of tetra(aniline) (TANI) and polyethylene glycol (PEG) was synthesized by coupling the tosylated-PEG to boc-protected NH2/NH2 TANI (1) through a simple nucleophilic substitution reaction. Deprotection of 2 resulted in a leucoemeraldine base state of TANI (2-LEB), which was oxidized to stable emeraldine base (2-EB) state. 2-EB was doped with 1 M HCl to emeraldine salt (2-ES) state. FTIR, 1H and 13C NMR and UV-Vis-NIR spectroscopy, and MS (ESI) was used for structural characterization. The synthesized triblock structure exhibited good electroactivity as confirmed by CV and UV-Vis-NIR spectroscopy. Self-assembling of the triblock structure in aqueous medium was assessed by DLS, TEM, and SEM. Spherical aggregates were observed with variable sizes depicting the effect of concentration and oxidation of 2-LEB. Further, the aggregates showed acid/base sensitivity as evaluated by doping and dedoping of 2-EB with 1 M HCl and 1 M NH4OH, respectively. Future applications in drug delivery and sensors are envisaged for such tunable self-assembled nanostructures in aqueous media.
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Affiliation(s)
- Irrum Mushtaq
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Zareen Akhter
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Faiz Ullah Shah
- Chemistry of Interfaces, Luleå University of Technology, Luleå, Sweden
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7
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Nishitani N, Hirose T, Matsuda K. Self-assembly of photochromic diarylethene-peptide conjugates stabilized by β-sheet formation at the liquid/graphite interface. Chem Commun (Camb) 2019; 55:5099-5102. [PMID: 30968929 DOI: 10.1039/c9cc02093d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two-dimensional (2-D) self-assembly of diarylethene (DAE)-peptide conjugates at the octanoic acid/graphite interface was investigated by scanning tunnelling microscopy (STM). The open-ring isomer of a DAE-peptide conjugate formed a stable 2-D molecular assembly with an antiparallel β-sheet structure. Quantitative analysis of surface coverage depending on concentration revealed a stronger stabilization effect of the oligopeptide than that of the alkyl group with a similar side chain length.
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Affiliation(s)
- Nobuhiko Nishitani
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
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8
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Kale TS, Ardoña HAM, Ertel A, Tovar JD. Torsional Impacts on Quaterthiophene Segments Confined within Peptidic Nanostructures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:2270-2282. [PMID: 30642185 DOI: 10.1021/acs.langmuir.8b03708] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The co-assembly behavior of peptide-π-peptide and peptide-alkyl-peptide triblock molecules that form one-dimensional (1D) nanostructures under acidic, aqueous environments is dependent on the peptide sequence and the torsional constraints imposed within the nanomaterial volume. Although a hydrophilic tripeptide sequence (Asp-Asp-Asp, DDD-) previously promoted isolation/dilution of minority π-electron components in the matrix of aliphatic peptides, a β-sheet promoting sequence (Asp-Val-Val, DVV-) led to blocks of the two components distributed within larger 1D self-assembled nanostructures. Furthermore, torsional restrictions exerted on the oligoaromatic π-electron unit by the self-assembly process can lead to changes in its conformation (for example, planarity), which has ramifications on its functionality within the peptide matrix. Here, we study this impact on thiophene-based π-electron units with inherently different geometries, viz., relatively planar 2,2':5',2″:5″,2‴-quaterthiophene and 3″,4'-dimethyl-2,2':5',2″:5″,2‴-quaterthiophene, which is twisted at the core bithiophene unit due to the presence of two methyl groups. These peptides were co-assembled at 5 and 20 mol % with peptide- n-decyl-peptide triblock molecules, and the resultant assemblies were studied using UV-vis absorption, photoluminescence, and circular dichroism spectroscopies. We found that torsional restriction in dimethylated quaterthiophene units can impact the stacking behavior of these 1D peptide nanoassemblies and have consequences on their photophysical properties. Additionally, these insights help in the understanding of the dependence of the optoelectronic properties of these materials on both the intrinsic conformation of π-units and the geometric constraints imposed by their immediate local environment under aqueous conditions.
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9
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Fagnani DE, Bou Zerdan R, Castellano RK. Synthesis, Optoelectronic Properties, Self-Association, and Base Pairing of Nucleobase-Functionalized Oligothiophenes. J Org Chem 2018; 83:12711-12721. [PMID: 30230836 DOI: 10.1021/acs.joc.8b02138] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Device-relevant π-conjugated oligothiophenes with the canonical nucleobases directly embedded into the π-framework have been designed, synthesized, and characterized. These oligomers offer the ability to tune optoelectronic properties via the intimate merging of the nucleobase molecular electronic structure with base-pairing fidelity. Analysis of their optical and electronic properties in a hydrogen-bond-disrupting solvent (DMF) indicates that the nucleobase identity influences the intrinsic electronic properties of the semiconductors. These differences are supported by DFT calculations which demonstrate that the HOMO/LUMO orbitals are distributed differently for each compound. The solubility and competition between self-association and base pairing in a hydrogen-bond-supporting solvent (chloroform) was studied to better understand the oligomer behavior under conditions relevant for downstream solution processing into thin-film devices. These solution studies reveal that in each case base-pairing is preferred to self-aggregation; the relatively weak heteroassociation of 1A-1U (35 ± 5 M-1) should be amenable to facile solution processing and successive hydrogen bond formation in the solid state, while the strong heteroassociation between 1G and 1C (>104 M-1) should enable assemblies to be preformed in solution. These results are expected to enable the synthesis of more complex π-conjugated architectures and facilitate their extension to optoelectronic devices.
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Affiliation(s)
- Danielle E Fagnani
- Department of Chemistry , University of Florida , P.O. Box 117200, Gainesville , Florida 32611 , United States
| | - Raghida Bou Zerdan
- Department of Chemistry , University of Florida , P.O. Box 117200, Gainesville , Florida 32611 , United States
| | - Ronald K Castellano
- Department of Chemistry , University of Florida , P.O. Box 117200, Gainesville , Florida 32611 , United States
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10
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Townsend EJ, Alotaibi M, Mills BM, Watanabe K, Seddon AM, Faul CFJ. Electroactive Amphiphiles for Addressable Supramolecular Nanostructures. CHEMNANOMAT : CHEMISTRY OF NANOMATERIALS FOR ENERGY, BIOLOGY AND MORE 2018; 4:741-752. [PMID: 31032175 PMCID: PMC6473557 DOI: 10.1002/cnma.201800194] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Indexed: 06/06/2023]
Abstract
In this focus review we aim to highlight an exciting class of materials, electroactive amphiphiles (EAAs). This class of functional amphiphilic molecules has been the subject of sporadic investigations over the last few decades, but little attempt has been made to date to gather or organise these investigations into a logical fashion. Here we attempted to gather the most important contributions, provide a framework in which to discuss them, and, more importantly, point towards the areas where we believe these EAAs will contribute to solving wider scientific problems and open new opportunities. Our discussions cover materials based on low molecular weight ferrocenes, viologens and anilines, as well as examples of polymeric and supramolecular EAAs. With the advances of modern analytical techniques and new tools for modelling and understanding optoelectronic properties, we believe that this area of research is ready for further exploration and exploitation.
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Affiliation(s)
- E. J. Townsend
- School of ChemistryUniversity of BristolCantock's CloseBristolBS8 1TSUK
- Bristol Centre for Functional Nanomaterials H.H. Wills Physics LaboratoryUniversity of BristolTyndall AvenueBristolBS8 1TL
| | - M. Alotaibi
- School of ChemistryUniversity of BristolCantock's CloseBristolBS8 1TSUK
- Chemistry Department Faculty of ScienceKing Abdul Aziz UniversityJeddah, KSA
| | - B. M. Mills
- School of ChemistryUniversity of BristolCantock's CloseBristolBS8 1TSUK
| | - K. Watanabe
- School of ChemistryUniversity of BristolCantock's CloseBristolBS8 1TSUK
- Research Organization of Science and TechnologyRitsumeikan University1-1-1 Noji-higashiKusatsu, Shiga525-8577Japan
| | - A. M. Seddon
- Bristol Centre for Functional Nanomaterials H.H. Wills Physics LaboratoryUniversity of BristolTyndall AvenueBristolBS8 1TL
- School of Physics H.H. Wills Physics LaboratoryUniversity of BristolTyndall AvenueBristolBS8 1TL
| | - C. F. J. Faul
- School of ChemistryUniversity of BristolCantock's CloseBristolBS8 1TSUK
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11
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Lewandowska U, Corra S, Zajaczkowski W, Ochs NAK, Shoshan MS, Tanabe J, Stappert S, Li C, Yashima E, Pisula W, Müllen K, Wennemers H. Positional Isomers of Chromophore-Peptide Conjugates Self-Assemble into Different Morphologies. Chemistry 2018; 24:12623-12629. [PMID: 29893493 DOI: 10.1002/chem.201801545] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 06/08/2018] [Indexed: 11/07/2022]
Abstract
Ordering π-systems into defined supramolecular structures is important for the development of organic functional materials. In recent years, peptides with defined secondary structures and/or self-assembly properties were introduced as powerful tools to order peptide-chromophore conjugates into different morphologies. This work explores whether or not the directionality of peptides can be used to control the self-assembly. The position of the π-system in conjugates between oligoprolines and perylene monoimide (PMI) chromophores was varied by attaching the PMI moiety to the second-to-last residue from the C- and N-termini, respectively. Microscopic and diffraction analysis revealed that the positional isomers form distinctly different supramolecular architectures that extend into the micrometer regime. NMR spectroscopic studies in solution phase allowed correlation of the self-assembly properties with markedly different conformational preferences of the isomeric building blocks. These insights enabled the design of building blocks with predictable self-assembly properties. Thus, the directionality of peptides offers exciting opportunities for controlling the self-assembly and electronic properties of π-systems.
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Affiliation(s)
- Urszula Lewandowska
- Laboratory of Organic Chemistry, ETH Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
| | - Stefano Corra
- Laboratory of Organic Chemistry, ETH Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
| | | | - Nellie A K Ochs
- Laboratory of Organic Chemistry, ETH Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
| | - Michal S Shoshan
- Laboratory of Organic Chemistry, ETH Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
| | - Junki Tanabe
- Laboratory of Organic Chemistry, ETH Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland.,Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Sebastian Stappert
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Chen Li
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Eiji Yashima
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Wojciech Pisula
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany.,Department of Molecular Physics, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924, Lodz, Poland
| | - Klaus Müllen
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany.,Institute of Physical Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Helma Wennemers
- Laboratory of Organic Chemistry, ETH Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
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12
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López-Andarias A, López-Andarias J, Atienza C, Chichón FJ, Carrascosa JL, Martín N. Tuning Optoelectronic and Chiroptic Properties of Peptide-Based Materials by Controlling the Pathway Complexity. Chemistry 2018. [PMID: 29537693 DOI: 10.1002/chem.201801238] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Supramolecular chemistry has evolved from the traditional focus on thermodynamic on-pathways to the complex study of kinetic off-pathways, which are strongly dependent on environmental conditions. Moreover, the control over pathway complexity allows nanostructures to be obtained that are inaccessible through spontaneous thermodynamic processes. Herein, we present a family of peptide-based π-extended tetrathiafulvalene (exTTF) molecules that show two self-assembly pathways leading to two distinct J-aggregates, namely metastable (M) and thermodynamic (T), with different spectroscopic, chiroptical, and electrochemical behavior. Moreover, cryo-transmission electron microscopy (cryo-TEM) reveals a different morphology for both aggregates and a direct observation of the morphological transformations from tapes to twisted ribbons.
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Affiliation(s)
- Alicia López-Andarias
- Department of Organic Chemistry, University of Complutense of Madrid, Ciudad Universitaria sn, Spain
| | - Javier López-Andarias
- Department of Organic Chemistry, University of Complutense of Madrid, Ciudad Universitaria sn, Spain
| | - Carmen Atienza
- Department of Organic Chemistry, University of Complutense of Madrid, Ciudad Universitaria sn, Spain
| | - Francisco J Chichón
- Spanish National Centre of Biotechnology (CNB), CSIC, E-28049, Madrid, Spain
| | - José L Carrascosa
- Spanish National Centre of Biotechnology (CNB), CSIC, E-28049, Madrid, Spain
| | - Nazario Martín
- Department of Organic Chemistry, University of Complutense of Madrid, Ciudad Universitaria sn, Spain
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13
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Konda M, Maiti S, Jadhav RG, Das AK. Redox-Active Peptide-Functionalized Quinquethiophene-Based Electrochromic π-Gel. Chem Asian J 2018; 13:204-209. [PMID: 29266836 DOI: 10.1002/asia.201701460] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 11/22/2017] [Indexed: 12/13/2022]
Abstract
An electrochromic system based on a self-assembled dipeptide-appended redox-active quinquethiophene π-gel is reported. The designed peptide-quinquethiophene consists of a symmetric bolaamphiphile that has two segments: a redox-active π-conjugated quinquethiophene core for electrochromism, and peptide motif for the involvement of molecular self-assembly. Investigations reveal that self-assembly and electrochromic properties of the π-gel are strongly dependent on the relative orientation of peptidic and quinquethiophene scaffolds in the self-assembly system. The colors of the π-gel film are very stable with fast and controlled switching speed at room temperature.
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Affiliation(s)
- Maruthi Konda
- Department of Chemistry, Indian Institute of Technology Indore, Indore, India
| | - Sayan Maiti
- Department of Chemistry, Indian Institute of Technology Indore, Indore, India
| | - Rohit G Jadhav
- Department of Chemistry, Indian Institute of Technology Indore, Indore, India
| | - Apurba K Das
- Department of Chemistry, Indian Institute of Technology Indore, Indore, India
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14
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Dobitz S, Aronoff MR, Wennemers H. Oligoprolines as Molecular Entities for Controlling Distance in Biological and Material Sciences. Acc Chem Res 2017; 50:2420-2428. [PMID: 28885830 DOI: 10.1021/acs.accounts.7b00340] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Nature utilizes large biomolecules to fulfill tasks that require spatially well-defined arrangements at the molecular level such as electron transfer, ligand-receptor interactions, or catalysis. The creation of synthetic molecules that enable precise control over spacing and functionalization provides opportunities across diverse disciplines. Key requirements of functionalizable oligomeric scaffolds include the specific control of their molecular properties where the correct balance of flexibility and rigidity must be maintained in addition to the prerequisite of defined length. These molecules must ideally be equally applicable in aqueous and organic environments, they must be easy to synthesize in a controlled stepwise fashion, and they must be easily modified with a palette of chemical appendages having diverse functionalities. Oligoproline, a peptidic polymer comprised of repeating units of the amino acid proline, is an ideal platform to meet such challenges. Oligoproline derives its characteristic rigidity and well-defined secondary structure from the innate features of proline. It is the only naturally occurring amino acid that has its side-chain cyclized to its α-amino group, generating often-populated trans and cis conformers around the tertiary amide bonds formed in proline oligomers. Oligoprolines are widely applied to define distance on the molecular level as they are capable of serving as both a "molecular ruler" with a defined length and as a "molecular scaffold" with precisely located and predictably oriented substitutions along the polymeric backbone. Our investigations focus on the use of oligoproline as a molecular scaffold. Toward this end, we have investigated the role of solvent upon helical structure of oligoproline, and the effect that substituents on the pyrrolidine ring and the oligomer termini have on the stability of the helix. We have also further explored the molecular characteristics of oligoproline through spectroscopic and crystallographic methods. All of these structural insights laid the basis for implementation of oligoproline in materials science and chemical biology. Within this Account, we highlight the value of oligoprolines for applications in distinctly different research areas. Toward materials chemistry, we have utilized oligoprolines for the size-controlled generation of noble metal nanoparticles, and to probe the role of spatial preorganization of π-systems for molecular self-assembly. Within the biological realm, we have applied oligoprolines to probe the role of distance on G-protein coupled receptor-mediated ligand uptake by cancerous cells and to investigate the effects of charge preorganization on the efficacy of cationic cell-penetrating peptides.
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Affiliation(s)
- Stefanie Dobitz
- ETH Zürich, Laboratory of Organic Chemistry, D-CHAB, Vladimir-Prelog-Weg 3, CH-8093 Zürich, Switzerland
| | - Matthew R. Aronoff
- ETH Zürich, Laboratory of Organic Chemistry, D-CHAB, Vladimir-Prelog-Weg 3, CH-8093 Zürich, Switzerland
| | - Helma Wennemers
- ETH Zürich, Laboratory of Organic Chemistry, D-CHAB, Vladimir-Prelog-Weg 3, CH-8093 Zürich, Switzerland
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15
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Guo Z, Wang K, Yu P, Wang X, Lan S, Sun K, Yi Y, Li Z. Impact of Linear Alkyl Length on the Assembly of Twisted Perylene Bisimides: From Molecular Arrangement to Nanostructures. Chem Asian J 2017; 12:2827-2833. [DOI: 10.1002/asia.201700984] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 08/18/2017] [Indexed: 12/19/2022]
Affiliation(s)
- Zongxia Guo
- Key Laboratory of Biobased Polymer Materials; Shandong Provincial Education Department; School of Polymer Science and Engineering; Qingdao University of Science and Technology (QUST); Qingdao 266042 P.R. China
| | - Kun Wang
- Key Laboratory of Biobased Polymer Materials; Shandong Provincial Education Department; School of Polymer Science and Engineering; Qingdao University of Science and Technology (QUST); Qingdao 266042 P.R. China
| | - Ping Yu
- Key Laboratory of Biobased Polymer Materials; Shandong Provincial Education Department; School of Polymer Science and Engineering; Qingdao University of Science and Technology (QUST); Qingdao 266042 P.R. China
| | - Xiangnan Wang
- Key Laboratory of Biobased Polymer Materials; Shandong Provincial Education Department; School of Polymer Science and Engineering; Qingdao University of Science and Technology (QUST); Qingdao 266042 P.R. China
| | - Shusha Lan
- Key Laboratory of Biobased Polymer Materials; Shandong Provincial Education Department; School of Polymer Science and Engineering; Qingdao University of Science and Technology (QUST); Qingdao 266042 P.R. China
| | - Kai Sun
- Beijing National Laboratory for Molecular Science (BNLMS); Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P.R. China
| | - Yuanping Yi
- Beijing National Laboratory for Molecular Science (BNLMS); Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P.R. China
| | - Zhibo Li
- Key Laboratory of Biobased Polymer Materials; Shandong Provincial Education Department; School of Polymer Science and Engineering; Qingdao University of Science and Technology (QUST); Qingdao 266042 P.R. China
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16
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Ardoña HAM, Kale TS, Ertel A, Tovar JD. Nonresonant and Local Field Effects in Peptidic Nanostructures Bearing Oligo(p-phenylenevinylene) Units. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:7435-7445. [PMID: 28683194 DOI: 10.1021/acs.langmuir.7b01023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Peptide nanostructures with built-in electronic functions offer a new platform for biomaterial science. In this report, we interrogate the influences of the immediate peptide environment around oligo(p-phenylenevinylene) (OPV3) electronic units embedded within one-dimensional peptide nanostructures on the resulting photophysics as assessed by UV-vis, photoluminescence (PL), and circular dichroism spectroscopies. To do so, we studied peptide-core-peptide molecules where the core was either OPV3 or an aliphatic n-decyl chain. Coassemblies of these molecules wherein the π-core was diluted as a minority component within a majority aliphatic matrix allowed for the variation of interchromophore exciton coupling commonly found in homoassemblies of peptide-OPV3-peptide monomers. Upon coassembly of the peptides, a hydrophilic tripeptide sequence (Asp-Asp-Asp-, DDD-) promoted the dilution/isolation of the peptide-π-peptide molecules in the majority peptide-decyl-peptide matrix whereas a hydrophobic tripeptide sequence (Asp-Val-Val-, DVV-) promoted the formation of self-associated stacks within the nanostructures. We also performed temperature variation studies to induce the reorganization of π-electron units in the spatially constrained n-decyl environment. This study elucidates the nonresonant (e.g., conformational) and local peptide field effects enforced within the internal environment of peptide nanomaterials and how they lead to varied photophysical properties of the embedded π-electron cores. It offers new insights on tuning the optoelectronic properties of these types of materials on the basis of the local electronic and steric environment available within the nanostructures.
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Affiliation(s)
- Herdeline Ann M Ardoña
- Department of Chemistry, Krieger School of Arts and Sciences, ‡Institute for NanoBioTechnology, and §Department of Materials Science and Engineering, Whiting School of Engineering, Johns Hopkins University , 3400 N. Charles Street, Baltimore, Maryland 21218, United States
| | - Tejaswini S Kale
- Department of Chemistry, Krieger School of Arts and Sciences, ‡Institute for NanoBioTechnology, and §Department of Materials Science and Engineering, Whiting School of Engineering, Johns Hopkins University , 3400 N. Charles Street, Baltimore, Maryland 21218, United States
| | - Alyssa Ertel
- Department of Chemistry, Krieger School of Arts and Sciences, ‡Institute for NanoBioTechnology, and §Department of Materials Science and Engineering, Whiting School of Engineering, Johns Hopkins University , 3400 N. Charles Street, Baltimore, Maryland 21218, United States
| | - John D Tovar
- Department of Chemistry, Krieger School of Arts and Sciences, ‡Institute for NanoBioTechnology, and §Department of Materials Science and Engineering, Whiting School of Engineering, Johns Hopkins University , 3400 N. Charles Street, Baltimore, Maryland 21218, United States
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17
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Spicer CD, Booth MA, Mawad D, Armgarth A, Nielsen CB, Stevens MM. Synthesis of Hetero-bifunctional, End-Capped Oligo-EDOT Derivatives. Chem 2017; 2:125-138. [PMID: 28149959 PMCID: PMC5268340 DOI: 10.1016/j.chempr.2016.12.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 11/09/2016] [Accepted: 12/09/2016] [Indexed: 11/17/2022]
Abstract
Conjugated oligomers of 3,4-ethylenedioxythiophene (EDOT) are attractive materials for tissue engineering applications and as model systems for studying the properties of the widely used polymer poly(3,4-ethylenedioxythiophene). We report here the facile synthesis of a series of keto-acid end-capped oligo-EDOT derivatives (n = 2-7) through a combination of a glyoxylation end-capping strategy and iterative direct arylation chain extension. Importantly, these structures not only represent the longest oligo-EDOTs reported but are also bench stable, in contrast to previous reports on such oligomers. The constructs reported here can undergo subsequent derivatization for integration into higher-order architectures, such as those required for tissue engineering applications. The synthesis of hetero-bifunctional constructs, as well as those containing mixed-monomer units, is also reported, allowing further complexity to be installed in a controlled manner. Finally, we describe the optical and electrochemical properties of these oligomers and demonstrate the importance of the keto-acid in determining their characteristics.
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Affiliation(s)
- Christopher D. Spicer
- Departments of Materials and Bioengineering, Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Marsilea A. Booth
- Departments of Materials and Bioengineering, Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Damia Mawad
- Departments of Materials and Bioengineering, Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Astrid Armgarth
- Departments of Materials and Bioengineering, Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Christian B. Nielsen
- Materials Research Institute and School of Biological and Chemical Sciences, Queen Mary University of London, London E1 4NS, UK
| | - Molly M. Stevens
- Departments of Materials and Bioengineering, Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK
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18
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Guo Z, Wang K, Yu P, Zhang S, Sun K, Li Z. Role of intrinsic hydrogen bonds in the assembly of perylene imide derivatives in solution and at the liquid–solid interface. Phys Chem Chem Phys 2017; 19:23007-23014. [DOI: 10.1039/c7cp04928e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The impact of hydrogen bond formation on the supramolecular assembly of two perylene imide-based derivatives was systematically investigated.
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Affiliation(s)
- Zongxia Guo
- Key Laboratory of Biobased Polymer Materials
- Shandong Provincial Education Department
- School of Polymer Science and Engineering
- Qingdao University of Science and Technology (QUST)
- Qingdao 266042
| | - Kun Wang
- Key Laboratory of Biobased Polymer Materials
- Shandong Provincial Education Department
- School of Polymer Science and Engineering
- Qingdao University of Science and Technology (QUST)
- Qingdao 266042
| | - Ping Yu
- Key Laboratory of Biobased Polymer Materials
- Shandong Provincial Education Department
- School of Polymer Science and Engineering
- Qingdao University of Science and Technology (QUST)
- Qingdao 266042
| | - Shengyue Zhang
- Key Laboratory of Biobased Polymer Materials
- Shandong Provincial Education Department
- School of Polymer Science and Engineering
- Qingdao University of Science and Technology (QUST)
- Qingdao 266042
| | - Kai Sun
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Zhibo Li
- Key Laboratory of Biobased Polymer Materials
- Shandong Provincial Education Department
- School of Polymer Science and Engineering
- Qingdao University of Science and Technology (QUST)
- Qingdao 266042
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19
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Kale TS, Tovar JD. Regulation of peptide-π-peptide nanostructure bundling: the impact of ‘cruciform’ π-electron segments. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.07.064] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Hsu SM, Wu FY, Cheng H, Huang YT, Hsieh YR, Tseng DTH, Yeh MY, Hung SC, Lin HC. Functional Supramolecular Polymers: A Fluorescent Microfibrous Network in a Supramolecular Hydrogel for High-Contrast Live Cell-Material Imaging in 3D Environments. Adv Healthc Mater 2016; 5:2406-12. [PMID: 27390271 DOI: 10.1002/adhm.201600342] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Revised: 05/20/2016] [Indexed: 12/21/2022]
Abstract
A new bottom-up strategy based on aromatic peptide amphiphile is developed for a high-contrast visualization of 3D live cell-material imaging-something that has been difficult to achieve previously because of the problems associated with the diffraction of light by the nanosized peptide materials and the aggregation-caused quenching of aggregated π-conjugated fluorophores in the nanostructures. This study reports an example of a novel supramolecular hydrogelator, naphthaleneimide-phenylalanine (NI-Phe), which forms a self-supporting hydrogel displaying a unique microfibrous network and promising aggregation-induced emission characteristics at pH 7.4. The storage modulus of the NI-Phe gel supports the mass of a cell for 3D cell culturing. This work illustrates a new dopant-free supramolecular approach, complementary to well-established doping procedures that should facilitate the development of live cell imaging in 3D scaffolding materials.
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Affiliation(s)
- Shu-Min Hsu
- Department of Materials Science and Engineering; National Chiao Tung University; Hsinchu 30010 Taiwan
| | - Fang-Yi Wu
- Department of Materials Science and Engineering; National Chiao Tung University; Hsinchu 30010 Taiwan
| | - Hsun Cheng
- Department of Materials Science and Engineering; National Chiao Tung University; Hsinchu 30010 Taiwan
| | - Yu-Tang Huang
- Department of Materials Science and Engineering; National Chiao Tung University; Hsinchu 30010 Taiwan
| | - Yi-Ru Hsieh
- Department of Materials Science and Engineering; National Chiao Tung University; Hsinchu 30010 Taiwan
| | - Dion Tzu-Huan Tseng
- Department of Materials Science and Engineering; National Chiao Tung University; Hsinchu 30010 Taiwan
| | - Mei-Yu Yeh
- Integrative Stem Cell Center; China Medical University Hospital; Taichung 40447 Taiwan
- Graduate Institute of Basic Medical Science; China Medical University; Taichung 40402 Taiwan
| | - Shih-Chieh Hung
- Integrative Stem Cell Center; China Medical University Hospital; Taichung 40447 Taiwan
- Graduate Institute of Clinical Medical Science; China Medical University; Taichung 40402 Taiwan
| | - Hsin-Chieh Lin
- Department of Materials Science and Engineering; National Chiao Tung University; Hsinchu 30010 Taiwan
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21
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Cai Z, Li L, Lo WY, Zhao D, Wu Q, Zhang N, Su YA, Chen W, Yu L. Controlled Self-Assembly of Cyclophane Amphiphiles: From 1D Nanofibers to Ultrathin 2D Topological Structures. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00860] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhengxu Cai
- Department
of Chemistry and the James Franck Institute, The University of Chicago, 929 E 57th Street, Chicago, Illinois 60637, United States
| | - Lianwei Li
- Department
of Chemistry and the James Franck Institute, The University of Chicago, 929 E 57th Street, Chicago, Illinois 60637, United States
| | - Wai-Yip Lo
- Department
of Chemistry and the James Franck Institute, The University of Chicago, 929 E 57th Street, Chicago, Illinois 60637, United States
| | - Donglin Zhao
- Department
of Chemistry and the James Franck Institute, The University of Chicago, 929 E 57th Street, Chicago, Illinois 60637, United States
| | - Qinghe Wu
- Department
of Chemistry and the James Franck Institute, The University of Chicago, 929 E 57th Street, Chicago, Illinois 60637, United States
| | - Na Zhang
- Department
of Chemistry and the James Franck Institute, The University of Chicago, 929 E 57th Street, Chicago, Illinois 60637, United States
| | - Yu-An Su
- Materials
Science Division, Argonne National Laboratory, 9700 Cass Avenue, Lemont, Illinois 60439, United States
| | - Wei Chen
- Materials
Science Division, Argonne National Laboratory, 9700 Cass Avenue, Lemont, Illinois 60439, United States
- Institute
for Molecular Engineering, The University of Chicago, 5640 South
Ellis Avenue, Chicago, Illinois 60637, United States
| | - Luping Yu
- Department
of Chemistry and the James Franck Institute, The University of Chicago, 929 E 57th Street, Chicago, Illinois 60637, United States
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22
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Lewandowska U, Zajaczkowski W, Pisula W, Ma Y, Li C, Müllen K, Wennemers H. Effect of Structural Modifications on the Self-Assembly of Oligoprolines Conjugated with Sterically Demanding Chromophores. Chemistry 2016; 22:3804-9. [PMID: 26891419 DOI: 10.1002/chem.201504952] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Indexed: 12/14/2022]
Abstract
Conjugates between oligoprolines and sterically demanding perylene monoimides (PMIs) form hierarchical supramolecular self-assemblies. The influence of the length and stereochemistry at the attachment site between the peptide backbone and the chromophore on the self-assembly properties of the conjugates was explored. Comparison between oligoprolines bearing 4R- or 4S-configured azidoprolines (Azp) for the conjugation with the PMIs revealed that diastereoisomers with 4R configuration guide the self-assembly consistently better than conjugates with 4S configuration. Elongating the peptide chain beyond nine proline residues or introducing structural "errors", by altering the absolute configuration of one stereogenic center at the outside of the functionalizable oligoproline helix, lowered the efficacy of self-assembly significantly, both in solution phase and in the solid state. The results showed how subtle structural modifications allow for tuning the self-assembly of chromophores and provided further design principles for the development of peptide-chromophore conjugates into nanostructured materials.
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Affiliation(s)
- Urszula Lewandowska
- Laboratory of Organic Chemistry, ETH Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
| | | | - Wojciech Pisula
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany.,Department of Molecular Physics, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924, Lodz, Poland
| | - Yingjie Ma
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Chen Li
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Klaus Müllen
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany.
| | - Helma Wennemers
- Laboratory of Organic Chemistry, ETH Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland.
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23
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Krieg E, Bastings MMC, Besenius P, Rybtchinski B. Supramolecular Polymers in Aqueous Media. Chem Rev 2016; 116:2414-77. [DOI: 10.1021/acs.chemrev.5b00369] [Citation(s) in RCA: 527] [Impact Index Per Article: 65.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
| | | | - Pol Besenius
- Institute
of Organic Chemistry, Johannes Gutenberg-Universität Mainz, Mainz 55128, Germany
| | - Boris Rybtchinski
- Department
of Organic Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
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24
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Schmid S, Ng DYW, Mena-Osteritz E, Wu Y, Weil T, Bäuerle P. Self-assembling oligothiophene–bolaamphiphiles for loading and controlled release of doxorubicin into living cells. Chem Commun (Camb) 2016; 52:3235-8. [DOI: 10.1039/c5cc08483k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Symmetric mannose-functionalized oligothiophenes for efficient transport and release of the anti-tumour drug doxorubicin.
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Affiliation(s)
- S. Schmid
- Institute of Organic Chemistry II and Advanced Materials
- University of Ulm
- 89081 Ulm
- Germany
| | - D. Y. W. Ng
- Institute of Organic Chemistry III/Macromolecular Chemistry
- University of Ulm
- 89081 Ulm
- Germany
| | - E. Mena-Osteritz
- Institute of Organic Chemistry II and Advanced Materials
- University of Ulm
- 89081 Ulm
- Germany
| | - Y. Wu
- Institute of Organic Chemistry III/Macromolecular Chemistry
- University of Ulm
- 89081 Ulm
- Germany
| | - T. Weil
- Institute of Organic Chemistry III/Macromolecular Chemistry
- University of Ulm
- 89081 Ulm
- Germany
| | - P. Bäuerle
- Institute of Organic Chemistry II and Advanced Materials
- University of Ulm
- 89081 Ulm
- Germany
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25
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Besar K, Ardoña HAM, Tovar JD, Katz HE. Demonstration of Hole Transport and Voltage Equilibration in Self-Assembled π-Conjugated Peptide Nanostructures Using Field-Effect Transistor Architectures. ACS NANO 2015; 9:12401-12409. [PMID: 26554697 DOI: 10.1021/acsnano.5b05752] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
π-Conjugated peptide materials are attractive for bioelectronics due to their unique photophysical characteristics, biofunctional interfaces, and processability under aqueous conditions. In order to be relevant for electrical applications, these types of materials must be able to support the passage of current and the transmission of applied voltages. Presented herein is an investigation of both the current and voltage transmission activities of one-dimensional π-conjugated peptide nanostructures. Observations of the nanostructures as both semiconducting and gate layers in organic field-effect transistors (OFETs) were made, and the effect of systematic changes in amino acid composition on the semiconducting/conducting functionality of the nanostructures was investigated. These molecular variations directly impacted the hole mobility values observed for the nanomaterial active layers over 3 orders of magnitude (∼0.02 to 5 × 10(-5) cm(2) V(-1) s(-1)) when the nanostructures had quaterthiophene cores and the assembled peptide materials spanned source and drain electrodes. Peptides without the quaterthiophene core were used as controls and did not show field-effect currents, verifying that the transport properties of the nanostructures rely on the semiconducting behavior of the π-electron core and not just ionic rearrangements. We also showed that the nanomaterials could act as gate electrodes and assessed the effect of varying the gate dielectric layer thickness in devices where the conventional organic semiconductor pentacene spanned the source and drain electrodes in a top-contact OFET, showing an optimum performance with 35-40 nm dielectric thickness. This study shows that these peptides that self-assemble in aqueous environments can be used successfully to transmit electronic signals over biologically relevant distances.
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Affiliation(s)
- Kalpana Besar
- Department of Materials Science and Engineering, Whiting School of Engineering, ‡Department of Chemistry, Krieger School of Arts and Sciences, and §Institute of NanoBioTechnology, Johns Hopkins University , 3400 N. Charles Street, Baltimore, Maryland 21218 United States
| | - Herdeline Ann M Ardoña
- Department of Materials Science and Engineering, Whiting School of Engineering, ‡Department of Chemistry, Krieger School of Arts and Sciences, and §Institute of NanoBioTechnology, Johns Hopkins University , 3400 N. Charles Street, Baltimore, Maryland 21218 United States
| | - John D Tovar
- Department of Materials Science and Engineering, Whiting School of Engineering, ‡Department of Chemistry, Krieger School of Arts and Sciences, and §Institute of NanoBioTechnology, Johns Hopkins University , 3400 N. Charles Street, Baltimore, Maryland 21218 United States
| | - Howard E Katz
- Department of Materials Science and Engineering, Whiting School of Engineering, ‡Department of Chemistry, Krieger School of Arts and Sciences, and §Institute of NanoBioTechnology, Johns Hopkins University , 3400 N. Charles Street, Baltimore, Maryland 21218 United States
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26
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Bell OA, Wu G, Haataja JS, Brömmel F, Fey N, Seddon AM, Harniman R, Richardson RM, Ikkala O, Zhang X, Faul CFJ. Self-Assembly of a Functional Oligo(Aniline)-Based Amphiphile into Helical Conductive Nanowires. J Am Chem Soc 2015; 137:14288-94. [PMID: 26496508 PMCID: PMC4694622 DOI: 10.1021/jacs.5b06892] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Indexed: 01/09/2023]
Abstract
A tetra(aniline)-based cationic amphiphile, TANI-NHC(O)C5H10N(CH3)3(+)Br(-) (TANI-PTAB) was synthesized, and its emeraldine base (EB) state was found to self-assemble into nanowires in aqueous solution. The observed self-assembly is described by an isodesmic model, as shown by temperature-dependent UV-vis investigations. Linear dichroism (LD) studies, combined with computational modeling using time-dependent density functional theory (TD-DFT), suggests that TANI-PTAB molecules are ordered in an antiparallel arrangement within nanowires, with the long axis of TANI-PTAB arranged perpendicular to the nanowire long axis. Addition of either S- or R- camphorsulfonic acid (CSA) to TANI-PTAB converted TANI to the emeraldine salt (ES), which retained the ability to form nanowires. Acid doping of TANI-PTAB had a profound effect on the nanowire morphology, as the CSA counterions' chirality translated into helical twisting of the nanowires, as observed by circular dichroism (CD). Finally, the electrical conductivity of CSA-doped helical nanowire thin films processed from aqueous solution was 2.7 mS cm(-1). The conductivity, control over self-assembled 1D structure and water-solubility demonstrate these materials' promise as processable and addressable functional materials for molecular electronics, redox-controlled materials and sensing.
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Affiliation(s)
| | - Guanglu Wu
- Key
Laboratory of Organic Optoelectronics & Molecular Engineering,
Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Johannes S. Haataja
- Aalto
University, Department of Applied Physics,
Molecular Materials, FIN-00076 Espoo, Finland
| | | | - Natalie Fey
- School
of Chemistry, University of Bristol, Bristol BS8 1TS, U.K.
| | - Annela M. Seddon
- H.
H. Wills Physics Laboratory, University
of Bristol, Tyndall Avenue, Bristol BS8 1TL, United Kingdom
- Bristol
Centre for Functional Nanomaterials, Nanoscience and Quantum Information
Building, University of Bristol, Tyndall Avenue, Bristol BS8 1FD, United
Kingdom
| | | | - Robert M. Richardson
- H.
H. Wills Physics Laboratory, University
of Bristol, Tyndall Avenue, Bristol BS8 1TL, United Kingdom
| | - Olli Ikkala
- Aalto
University, Department of Applied Physics,
Molecular Materials, FIN-00076 Espoo, Finland
| | - Xi Zhang
- Key
Laboratory of Organic Optoelectronics & Molecular Engineering,
Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Charl F. J. Faul
- School
of Chemistry, University of Bristol, Bristol BS8 1TS, U.K.
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27
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Ardoña HAM, Tovar JD. Peptide π-Electron Conjugates: Organic Electronics for Biology? Bioconjug Chem 2015; 26:2290-302. [DOI: 10.1021/acs.bioconjchem.5b00497] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Herdeline Ann M. Ardoña
- Department of Chemistry, ‡Institute for NanoBioTechnology, and §Department of Materials
Science and
Engineering, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218 United States
| | - John D. Tovar
- Department of Chemistry, ‡Institute for NanoBioTechnology, and §Department of Materials
Science and
Engineering, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218 United States
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28
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Zhu Y, Liu T, Ma W, Zhang D, Zhang N, Chen L, Liu X, Qiu G. Biomolecule-assisted Hydrothermal Synthesis and Electrochemical Properties of Copper Sulfide Hollow Spheres. CHEM LETT 2015. [DOI: 10.1246/cl.150448] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yanjun Zhu
- Department of Inorganic Materials, Central South University
| | - Tao Liu
- Department of Inorganic Materials, Central South University
| | - Wei Ma
- Department of Inorganic Materials, Central South University
| | - Dan Zhang
- Department of Inorganic Materials, Central South University
| | - Ning Zhang
- School of Materials Science and Engineering, Central South University
| | - Limiao Chen
- Department of Inorganic Materials, Central South University
| | - Xiaohe Liu
- Department of Inorganic Materials, Central South University
- School of Materials Science and Engineering, Central South University
- State Key Laboratory of Powder Metallurgy, Central South University
| | - Guanzhou Qiu
- Department of Inorganic Materials, Central South University
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29
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Tovar JD. Peptide Nanostructures with π-Ways: Photophysical Consequences of Peptide/π-Electron Molecular Self-Assembly. Isr J Chem 2015. [DOI: 10.1002/ijch.201400161] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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30
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Bou Zerdan R, Cohn P, Puodziukynaite E, Baker MB, Voisin M, Sarun C, Castellano RK. Synthesis, optical properties, and electronic structures of nucleobase-containing π-conjugated oligomers. J Org Chem 2015; 80:1828-40. [PMID: 25581330 DOI: 10.1021/jo502773g] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The molecular recognition properties of the nucleobases instruct the formation of complex three-dimensional architectures in natural and synthetic systems; relatively unexplored is their use as building blocks for π-conjugated materials where they might mutually tune electronic and supramolecular structures. Toward this goal, an introductory set (1a-d and 2a-d) of six purine-terminated and two pyrimidine-terminated π-conjugated oligomers has been synthesized and used to develop experimental electronic and photophysical structure-property trends. Unlike 2,2':5',2″-terthiophene (TTT) derivatives 2a-d, intramolecular charge transfer dominates oligomers 1a-d bearing a 4,7-bisthienylbenzothiadiazole (TBT) spacer due to the strong electron-accepting ability of its benzothiadiazole (BTD) ring. The resulting donor-acceptor-donor systems feature lower HOMO-LUMO gaps than the terthiophene-linked nucleobases (ΔE(g) ∼ 1.8 eV vs 2.4 eV based on electrochemical measurements), and the lowest so far for π-conjugated molecules that include nucleobases within the π-framework. Experiments reveal a dependence of photophysical and electronic structure on the nature of the nucleobase and are in good agreement with theoretical calculations performed at the B3LYP/6-31+G** level. Overall, the results show how nucleobase heterocycles can be installed within π-systems to tune optical and electronic properties. Future work will evaluate the consequences of these information-rich components on supramolecular π-conjugated structure.
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Affiliation(s)
- Raghida Bou Zerdan
- Department of Chemistry, University of Florida , P.O. Box 117200, Gainesville, Florida 32611, United States
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Pandeeswar M, Khare H, Ramakumar S, Govindaraju T. Crystallographic insight-guided nanoarchitectonics and conductivity modulation of an n-type organic semiconductor through peptide conjugation. Chem Commun (Camb) 2015; 51:8315-8. [DOI: 10.1039/c5cc01996f] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Crystallographic insight-guided and bio-inspired molecular nanoarchitectonics of an n-type organic semiconductor is described to understand the structure–property correlation, for modulation of functional properties.
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Affiliation(s)
- M. Pandeeswar
- Bioorganic Chemistry Laboratory
- New Chemistry Unit
- Jawaharlal Nehru Centre for Advanced Scientific Research
- Bengaluru 560064
- India
| | | | | | - T. Govindaraju
- Bioorganic Chemistry Laboratory
- New Chemistry Unit
- Jawaharlal Nehru Centre for Advanced Scientific Research
- Bengaluru 560064
- India
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32
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Zhou Z, Zhu W, Liao J, Huang S, Chen J, He T, Tan G, Ning C. Chondroitin sulphate-guided construction of polypyrrole nanoarchitectures. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 48:172-8. [PMID: 25579911 DOI: 10.1016/j.msec.2014.11.070] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Revised: 10/30/2014] [Accepted: 11/28/2014] [Indexed: 01/01/2023]
Abstract
Nanospheres, nanocones, and nanowires are three typical polypyrrole (PPy) nanoarchitectures and electrochemically polymerized with the dope of chondroitin sulphate (CS) in this study. CS, a functional biomacromolecule, guides the formation of PPy nanoarchitectures as the dopant and morphology-directing agent. Combined with our previous reported other PPy nanoarchitectures (such as nanotube arrays and nanowires), this work further proposed the novel mechanism of the construction of PPy/CS nanoarchitectures with the synergistic effect of CS molecular chains structure and the steric hindrance. Compared to the undoped PPy, MC3T3-E1 cells with PPy/CS nanoarchitectures possessed stronger proliferation and osteogenic differentiation capability. This suggests that PPy/CS nanoarchitectures have appropriate biocompatibility. Altogether, the nanoarchitectured PPy/CS may find application in the regeneration of bone defect.
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Affiliation(s)
- Zhengnan Zhou
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Wenjun Zhu
- Department of Prosthodontics, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Jingwen Liao
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Shishu Huang
- State Key Laboratory of Oral Diseases, West China College of Stomatology, Sichuan University, China; Department of Orthopaedics and Traumatology, The University of Hong Kong, China
| | - Junqi Chen
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Tianrui He
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Guoxin Tan
- Faculty of Light and Chemical, Guangdong University of Technology, Guangzhou 510006, China.
| | - Chengyun Ning
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China.
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Wall BD, Zhou Y, Mei S, Ardoña HAM, Ferguson AL, Tovar JD. Variation of formal hydrogen-bonding networks within electronically delocalized π-conjugated oligopeptide nanostructures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:11375-11385. [PMID: 25181015 DOI: 10.1021/la501999g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This photophysical study characterizes the generality of intermolecular electronic interactions present within nanomaterials derived from self-assembling oligopeptides with embedded π-conjugated oligophenylenevinylene (OPV) subunits stilbene and distyrylbenzene that in principle present two distinct β-sheet motifs. Two different synthetic approaches led to oligopeptides that upon self-assembly are expected to self-assemble into multimeric aggregates stabilized by β-sheet-like secondary structures. The target molecules express either two C-termini linked to the central OPV core (symmetric peptides) or the more common N-termini to C-termini polarity typical of natural oligopeptides (nonsymmetric peptides). Both peptide secondary structures were shown to form extended 1-D peptide aggregates with intimate intermolecular π-electron interactions. Differences in length of the π-conjugated OPV segments resulted in differing extents of intermolecular interactions and the resulting photophysics. The peptides containing the shorter stilbene (OPV2) units showed little ground state interactions and resulted in excimeric emission, while the longer distyrylbenzene (OPV3) peptides had different ground state interactions between adjacent π-conjugated subunits resulting in either perturbed electronic properties arising from exciton coupling or excimer-like excited states. Molecular dynamics simulations of nascent aggregate formation predict peptide dimerization to be a spontaneous process, possessing thermodynamic driving potentials in the range 2-6 kcal/mol for the four molecules considered. Antiparallel stacking of the peptides containing an OPV3 subunit is thermodynamically favored over the parallel orientation, whereas both arrangements are equally favored for the peptides containing an OPV2 subunit. This study validates the generality of peptide-π-peptide self-assembly to provide electronically delocalized supramolecular structures and suggests flexibility in peptide sequence design as a way to tune the material properties of π-conjugated supramolecular polymers.
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Affiliation(s)
- Brian D Wall
- Department of Chemistry, Krieger School of Arts and Sciences, ‡Institute of NanoBioTechnology, and §Department of Materials Science and Engineering, Whiting School of Engineering, Johns Hopkins University , 3400 N. Charles St., Baltimore, Maryland 21218, United States
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Guo Z, Gong R, Mu Y, Wang X, Wan X. Oligopeptide-Assisted Self-Assembly of Oligothiophenes: Co-Assembly and Chirality Transfer. Chem Asian J 2014; 9:3245-50. [DOI: 10.1002/asia.201402646] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Indexed: 10/24/2022]
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Noh J, Kim D, Jang G, Kim J, Heo MB, Lee NE, Kim CY, Lee E, Kim YJ, Lim YT, Lee TS. Fabrication, biofunctionalization, and simultaneous multicolor emission of hybrid “dots-on-spheres” structures for specific targeted imaging of cancer cells. RSC Adv 2014. [DOI: 10.1039/c4ra08587f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Maione S, Fabregat G, Del Valle LJ, Ballano G, Cativiela C, Alemán C. Electro-biocompatibility of conjugates designed by chemical similarity. J Pept Sci 2014; 20:537-46. [DOI: 10.1002/psc.2660] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Revised: 05/05/2014] [Accepted: 05/06/2014] [Indexed: 01/05/2023]
Affiliation(s)
- Silvana Maione
- Departament d'Enginyeria Química, E. T. S. d'Enginyers Industrials; Universitat Politècnica de Catalunya; Diagonal 647 08028 Barcelona Spain
- Center for Research in Nano-engineering; Universitat Politècnica de Catalunya; Campus Sud, Edifici C', C/Pasqual i Vila s/n Barcelona E-08028 Spain
| | - Georgina Fabregat
- Departament d'Enginyeria Química, E. T. S. d'Enginyers Industrials; Universitat Politècnica de Catalunya; Diagonal 647 08028 Barcelona Spain
- Center for Research in Nano-engineering; Universitat Politècnica de Catalunya; Campus Sud, Edifici C', C/Pasqual i Vila s/n Barcelona E-08028 Spain
| | - Luis J. Del Valle
- Departament d'Enginyeria Química, E. T. S. d'Enginyers Industrials; Universitat Politècnica de Catalunya; Diagonal 647 08028 Barcelona Spain
- Center for Research in Nano-engineering; Universitat Politècnica de Catalunya; Campus Sud, Edifici C', C/Pasqual i Vila s/n Barcelona E-08028 Spain
| | - Gema Ballano
- Department of Organic Chemistry, ISQCH; University of Zaragoza-CSIC; 50009 Zaragoza Spain
| | - Carlos Cativiela
- Department of Organic Chemistry, ISQCH; University of Zaragoza-CSIC; 50009 Zaragoza Spain
| | - Carlos Alemán
- Departament d'Enginyeria Química, E. T. S. d'Enginyers Industrials; Universitat Politècnica de Catalunya; Diagonal 647 08028 Barcelona Spain
- Center for Research in Nano-engineering; Universitat Politècnica de Catalunya; Campus Sud, Edifici C', C/Pasqual i Vila s/n Barcelona E-08028 Spain
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Wall BD, Zacca AE, Sanders AM, Wilson WL, Ferguson AL, Tovar JD. Supramolecular polymorphism: tunable electronic interactions within π-conjugated peptide nanostructures dictated by primary amino acid sequence. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:5946-5956. [PMID: 24802289 DOI: 10.1021/la500222y] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We present a systematic study of the photophysical properties of one-dimensional electronically delocalized nanostructures assembled from π-conjugated subunits embedded within oligopeptide backbones. The nature of the excited states within these nanostructures is studied as a function of primary amino acid sequence utilizing steady-state and time-resolved spectroscopies, and their atomistic structure is probed by molecular simulation. Variations introduced into the amino acid side chains at specific residue locations along the molecular peptide backbone lead to pronounced changes in the observed photophysical behavior of the fibrillar structures (spanning H-like excitonic coupling and disordered excimeric coupling) that arise from subtle changes in the π-stacking within them. These results indicate that residue modification-in terms of relative size, solvation properties, and with respect to the distance from the central π-electron core-enables the ability to tune chromophore packing and the resulting photophysics of supramolecular assemblies of π-conjugated bioelectronic materials in a rational and systematic manner.
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Affiliation(s)
- Brian D Wall
- Department of Chemistry, Krieger School of Arts and Sciences, Johns Hopkins University , 3400 N. Charles St., Baltimore, Maryland 21218, United States
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38
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Kamps AC, Cativo MHM, Chen XJ, Park SJ. Self-Assembly of DNA-Coupled Semiconducting Block Copolymers. Macromolecules 2014. [DOI: 10.1021/ma500509u] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Amanda C. Kamps
- Department
of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Ma. Helen M. Cativo
- Department
of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Xi-Jun Chen
- Department
of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - So-Jung Park
- Department
of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Department
of Chemistry and Nano Science, Global Top 5 Program, Ewha Womans University, 52 Ewhayeodae-gil,
Seodaemun-gu, Seoul 120-750, Korea
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39
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Jiang BP, Guo DS, Liu YC, Wang KP, Liu Y. Photomodulated fluorescence of supramolecular assemblies of sulfonatocalixarenes and tetraphenylethene. ACS NANO 2014; 8:1609-1618. [PMID: 24467338 DOI: 10.1021/nn405923b] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Self-assembled fluorescent nanoparticles responding to specific stimuli are highly appealing for applications such as labels, probes, memory devices, and logic gates. However, organic analogues are challenging to prepare, due to unfavorable aggregation-caused quenching. We herein report the preparation of self-assembled fluorescent organic nanoparticles in water by means of calixarene-induced aggregation of a tetraphenylethene derivative (QA-TPE) mediated by p-sulfonatocalix[4]arenes. The self-assembled nanoparticles showed interesting photoswitching behaviors, and the fluorescence output of the generated nanoparticles was opposite to that of free QA-TPE both before and after irradiation. Free QA-TPE is nonfluorescent, owing to intramolecular rotations of the phenyl rings. In contrast, the self-assembled nanoparticles that formed upon complexation of QA-TPE with p-sulfonatocalix[4]arene exhibited aggregation-induced emission fluorescence (λ(em) = 480 nm, Φ = 14%), as a result of the inhibition of rotations. Upon UV light irradiation, free QA-TPE was cyclized to the corresponding diphenylphenanthrene, which showed typical fluorescence of a π-conjugated system (λ(em) = 385 nm, Φ = 9.3%), whereas the nanoparticles were nonfluorescent upon irradiation due to the aggregation-caused quenching. In effect, this system allows programmed modulation of TPE fluorescence at two different emission wavelengths by means of host-guest complexation and irradiation. Relative to a single-mode stimulus-responsive system, our new developed system of highly integrated modes into a single molecular unit that can exhibit modulation of fluorescence by multiple stimulus is expected to be more adaptable for practical applications and to show enhanced multifunctionality.
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Affiliation(s)
- Bang-Ping Jiang
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University , Tianjin 300071, People's Republic of China
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40
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Pandeeswar M, Khare H, Ramakumar S, Govindaraju T. Biomimetic molecular organization of naphthalene diimide in the solid state: tunable (chiro-) optical, viscoelastic and nanoscale properties. RSC Adv 2014. [DOI: 10.1039/c3ra47257d] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Biomimetic molecular organization of naphthalene diimide in the solid state: tunable (chiro-) optical, viscoelastic and nanoscale properties.
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Affiliation(s)
- M. Pandeeswar
- Bioorganic Chemistry Laboratory
- New Chemistry Unit
- Jawaharlal Nehru Centre for Advanced Scientific Research
- Bangalore 560064, India
| | | | | | - T. Govindaraju
- Bioorganic Chemistry Laboratory
- New Chemistry Unit
- Jawaharlal Nehru Centre for Advanced Scientific Research
- Bangalore 560064, India
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41
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Sanders AM, Tovar JD. Solid-phase Pd-catalysed cross-coupling methods for the construction of π-conjugated peptide nanomaterials. Supramol Chem 2013. [DOI: 10.1080/10610278.2013.852675] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Allix M. Sanders
- Department of Chemistry, Johns Hopkins University, Baltimore, MD 21218, USA
| | - John D. Tovar
- Department of Chemistry, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Institute for NanoBiotechnology, Johns Hopkins University, Baltimore, MD 21218, USA
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42
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Guo Z, Song Y, Gong R, Mu Y, Jiang Y, Li M, Wan X. Assembly of peptide–thiophene conjugates: the influence of peptide content and location. Supramol Chem 2013. [DOI: 10.1080/10610278.2013.844810] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Zongxia Guo
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, P. R. China
| | - Yubao Song
- Department of Chemistry, Qingdao University of Science and Technology, 53 Zhengzhou Road, Qingdao, Shandong Province 266042, P. R. China
| | - Ruiying Gong
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, P. R. China
| | - Youbing Mu
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, P. R. China
| | - Yi Jiang
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, P. R. China
| | - Ming Li
- Department of Chemistry, Qingdao University of Science and Technology, 53 Zhengzhou Road, Qingdao, Shandong Province 266042, P. R. China
| | - Xiaobo Wan
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, P. R. China
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43
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Abstract
Peptide self-assembly is a powerful method to create functional nanoscale materials such as optoelectronically relevant organic nanostructures. The enormous potential that may come from bringing π-conjugated electronic function into biological environments is poised to impact cell and tissue engineering, biosensors, and related biomedical applications. However, very little synthetic guidance is available with respect to uniting these two different materials sets in a generally applicable manner. In this Account, I describe my group's work to synthesize and assemble peptidic nanostructures built around organic electronic elements. The Account begins with a very brief background to the area of supramolecular electronics, followed by a description of areas where these nanomaterials could be useful in biology. I then discuss the synthetic approaches that we utilized to embed a variety of π-electron units directly within peptide backbones. A key supramolecular challenge with respect to subsequent self-assembly of these new molecules is balancing electrostatic contributions within the resulting nanomaterials, because the suitable geometries for stabilizing peptide assemblies may not necessarily correspond to those suitable for maximizing intermolecular π-electron interactions. Regardless of the respective magnitudes of these two major influences, the assembly paradigm is fairly robust. Variation of the π-electron units and the peptide sequences that make up the "peptide-π-peptide" triblock molecules consistently leads to fairly uniform tape-like nanostructures that maintain strong electronic coupling among the component π-electron units. We explored a diverse range of π-electron units spanning fluorescent oligo(phenylene vinylene)s, electron-accepting rylene diimides, and hole-transporting oligothiophenes. I then describe the characterization of the nanomaterials that form after molecular self-assembly in order to understand their internal structures, electronic interactions, and morphologies as existing within self-supporting hydrogel matrices. I also describe how a facile shearing process provided globally aligned macroscopic collections of one-dimensional electronic fibrils in hydrogel matrices. These general assembly processes influence intermolecular π-stacking among the embedded chromophores, and the assemblies themselves can facilitate the covalent cross-linking and polymerization (for example, of reactive diyne units). The latter offers an exciting possibility to create peptidic nanostructures comprised of single polymer chains. Finally, I discuss electronic properties as manifested in the interactions of transition dipoles within the nanomaterials and electrical properties resulting from field-effect gating. The ability to tune the observable electrical properties of the nanostructures externally will allow for their transition to in vitro or in vivo platforms as a powerful new approach to regulating biological interactions at the nanoscale.
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Affiliation(s)
- John D. Tovar
- Department of Chemistry, Department of Materials Science and Engineering, and Institute for NanoBioTechnology Johns Hopkins University 3400 North Charles Street (NCB 316), Baltimore, Maryland 21218, United States
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44
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Chabre YM, Roy R. Multivalent glycoconjugate syntheses and applications using aromatic scaffolds. Chem Soc Rev 2013; 42:4657-708. [PMID: 23400414 DOI: 10.1039/c3cs35483k] [Citation(s) in RCA: 200] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Glycan-protein interactions are of utmost importance in several biological phenomena. Although the variety of carbohydrate residues in mammalian cells is limited to less than a dozen different sugars, their spatial topographical presentation in what is now associated as the "glycocodes" provides the fundamental keys for specific and high affinity "lock-in" recognition events associated with a wide range of pathologies. Toward deciphering our understanding of these glycocodes, chemists have developed new creative tools that included dendrimer chemistry in order to provide monodisperse multivalent glycoconjugates. This review provides a survey of the numerous aromatic architectures generated for the multivalent presentation of relevant carbohydrates using covalent attachment or supramolecular self-assemblies. The basic concepts toward their controlled syntheses will be described using modern synthetic procedures with a particular emphasis on powerful organometallic methodologies. The large variety of dendritic aromatic scaffolds, together with a brief survey of their unique biophysical and biological properties will be critically reviewed. The distinctiveness of the resulting multivalent glycoarchitectures, encompassing glycoclusters, glycodendrimers and molecularly defined self-assemblies, in forming well organized cross-linked lattices with multivalent carbohydrate binding proteins (lectins) together with their photophysical, medical, and imaging properties will also be briefly highlighted. The topic will be presented in increasing order of aromatic backbone complexities and will end with fullerenes together with self-assembled nanostructures, thus complementing the various scaffolds described in this special thematic issue dedicated to multivalent glycoscience.
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Affiliation(s)
- Yoann M Chabre
- Pharmaqam - Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888, Succ. Centre-ville, Montréal, Québec, Canada H3C 3P8
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45
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Cheng X, Gao H, Tan X, Yang X, Prehm M, Ebert H, Tschierske C. Transition between triangular and square tiling patterns in liquid-crystalline honeycombs formed by tetrathiophene-based bolaamphiphiles. Chem Sci 2013. [DOI: 10.1039/c3sc50664a] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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46
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Bu W, Gao H, Tan X, Dong X, Cheng X, Prehm M, Tschierske C. A bolaamphiphilic sexithiophene with liquid crystalline triangular honeycomb phase. Chem Commun (Camb) 2013; 49:1756-8. [DOI: 10.1039/c3cc38859j] [Citation(s) in RCA: 25] [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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47
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Schmid S, Mishra A, Wunderlin M, Bäuerle P. Mannose-functionalized dendritic oligothiophenes: synthesis, characterizations and studies on their interaction with Concanavalin A. Org Biomol Chem 2013; 11:5656-65. [DOI: 10.1039/c3ob41113c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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48
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Bhatt MP, Sista P, Hao J, Hundt N, Biewer MC, Stefan MC. Electronic properties-morphology correlation of a rod-rod semiconducting liquid crystalline block copolymer containing poly(3-hexylthiophene). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:12762-12770. [PMID: 22889166 DOI: 10.1021/la301731w] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The influence of the solvent and annealing temperature on the field-effect mobilities and morphologies of poly(3-hexylthiophene)-b-poly(γ-benzyl-L-glutamate) (P3HT-b-PBLG) rod-rod diblock copolymer has been investigated. Thin film X-ray diffraction studies show peaks originating from both P3HT and PBLG indicating that the crystalline nature of both the blocks is conserved after the formation of the block copolymer. It has been observed that the field-effect mobilities of the diblock copolymer are independent of the annealing temperatures for thin films deposited from both 1,2,4-trichlorobenzene and chloroform solvents. The correlation between the field-effect mobility and morphology indicates that the P3HT block self-assembles at the surface SiO(2) dielectric.
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Affiliation(s)
- Mahesh P Bhatt
- Department of Chemistry, University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States
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49
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Shao H, Gao M, Kim SH, Jaroniec CP, Parquette JR. Aqueous self-assembly of L-lysine-based amphiphiles into 1D n-type nanotubes. Chemistry 2012; 17:12882-5. [PMID: 22167876 DOI: 10.1002/chem.201102616] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hui Shao
- The Dow Chemical Company, Core R&D, Building 1712, Midland, MI 48674, USA
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50
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Paczesny J, Sozański K, Żywociński A, Hołyst R, Glettner B, Kieffer R, Tschierske C, Nikiforov K, Pociecha D, Górecka E. Spontaneous self-assembly of partially fluorinated bolaamphiphiles into ordered layered structures. Phys Chem Chem Phys 2012; 14:14365-73. [DOI: 10.1039/c2cp41970j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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