1
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Nandi AK. A Review on Self-Assembly Driven Optoelectronic Properties of Polythiophene-Peptide and Polythiophene-Polymer Conjugates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:9385-9405. [PMID: 38682339 DOI: 10.1021/acs.langmuir.4c00713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
Polythiophene (PT) is an important conducting polymer for its outstanding optoelectronic properties. Here, we delineate the self-assembly-driven optoelectronic properties of PT-peptide and PT-polymer conjugates, taking examples from recent literature reports. PT-peptide conjugates made by both covalent and noncovalent approaches are discussed. Poly(3-thiophene acetic acid) (P3TAA) covalently coupled with Gly-Gly-His tripeptide, C-protected and deprotected tripeptide H2N-F-F-V-OMe, etc. exhibits self-assembly-driven absorbance, fluorescence, photocurrent, and electronic properties. Noncovalent PT-peptide conjugates produced via ionic, H-bonding, and π-stacking interactions show tunable morphology and optoelectronic properties by varying the composition of a component. PT conjugated with Alzheimer's disease peptide (KLVFFAE, Aβ16-22) shows enhanced photocatalytic water splitting, cationic PT(CPT-I)-perylene bisimide-appended dipeptide (PBI-DY), and anionic PT-perylene diimide-appended cationic peptide (PBI-NH3+) conjugates and exhibits self-assembly-driven enhanced photoswitching and organic mixed electronic and ionic conductivity (OMEIC) properties. In the PT-polymer conjugates, self-assembly-driven optoelectronic properties of covalently produced PT-random copolymers, PT-block copolymers, PT-graft-random copolymers, and PT-graft-block copolymer conjugates are discussed. The HOMO-LUMO levels of hyperbranched polymers are optimized to obtain better power conversion efficiency (PCE) in the bulk heterojunction (BHJ) solar cell than in linear polymers, and P3TAA-ran-P3HT (43 mol % P3TAA) conjugated with MAPbI3 perovskite exhibits higher PCE (10%) than that with only P3TAA hole-transporting material. In the ampholytic polythiophene (APT), on increasing pH, the morphology changes from the vesicle to fibrillar network for the dethreading of the PT chain, resulting in a red shift of the absorbance peak, an enormous increase in PL intensity, lowering of the charge transfer resistance, and an induction of Warburg impedance for the release of quencher I- ions. The PT-g-(PDMAEMA-co-PGLU-HEM) graft copolymer self-assembles with Con-A lectin, causing fluorescence quenching, and acts as a sensor for Con-A with a LOD of 57 mg/L. Varying sequences of the block copolymer containing pH-responsive PDMAEMA and temperature-responsive PDEGMEM grafted to the PT backbone shows different self-assembly, optical, electronic, and photocurrent properties depending on the proximity and preponderance of the block sequence on the PT backbone.
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Affiliation(s)
- Arun K Nandi
- Polymer Science Unit, School of Materials Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
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2
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González-Sánchez M, Mayoral MJ, Vázquez-González V, Paloncýová M, Sancho-Casado I, Aparicio F, de Juan A, Longhi G, Norman P, Linares M, González-Rodríguez D. Stacked or Folded? Impact of Chelate Cooperativity on the Self-Assembly Pathway to Helical Nanotubes from Dinucleobase Monomers. J Am Chem Soc 2023; 145:17805-17818. [PMID: 37531225 PMCID: PMC10436278 DOI: 10.1021/jacs.3c04773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Indexed: 08/04/2023]
Abstract
Self-assembled nanotubes exhibit impressive biological functions that have always inspired supramolecular scientists in their efforts to develop strategies to build such structures from small molecules through a bottom-up approach. One of these strategies employs molecules endowed with self-recognizing motifs at the edges, which can undergo either cyclization-stacking or folding-polymerization processes that lead to tubular architectures. Which of these self-assembly pathways is ultimately selected by these molecules is, however, often difficult to predict and even to evaluate experimentally. We show here a unique example of two structurally related molecules substituted with complementary nucleobases at the edges (i.e., G:C and A:U) for which the supramolecular pathway taken is determined by chelate cooperativity, that is, by their propensity to assemble in specific cyclic structures through Watson-Crick pairing. Because of chelate cooperativities that differ in several orders of magnitude, these molecules exhibit distinct supramolecular scenarios prior to their polymerization that generate self-assembled nanotubes with different internal monomer arrangements, either stacked or coiled, which lead at the same time to opposite helicities and chiroptical properties.
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Affiliation(s)
- Marina González-Sánchez
- Nanostructured
Molecular Systems and Materials Group, Organic Chemistry Department, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - María J. Mayoral
- Department
of Inorganic Chemistry, Universidad Complutense
de Madrid, 28040 Madrid, Spain
| | - Violeta Vázquez-González
- Nanostructured
Molecular Systems and Materials Group, Organic Chemistry Department, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Markéta Paloncýová
- Division
of Theoretical Chemistry and Biology, School of Engineering Sciences
in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
- Regional
Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký
University Olomouc, 779 00 Olomouc, Czech Republic
| | - Irene Sancho-Casado
- Nanostructured
Molecular Systems and Materials Group, Organic Chemistry Department, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Fátima Aparicio
- Nanostructured
Molecular Systems and Materials Group, Organic Chemistry Department, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Alberto de Juan
- Nanostructured
Molecular Systems and Materials Group, Organic Chemistry Department, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Giovanna Longhi
- Department
of Molecular and Translational Medicine, University of Brescia, Viale Europa 11, 25123 Brescia, Italy
| | - Patrick Norman
- Division
of Theoretical Chemistry and Biology, School of Engineering Sciences
in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Mathieu Linares
- Laboratory
of Organic Electronics and Scientific Visualization Group, ITN, Campus
Norrköping; Swedish e-Science Research Centre (SeRC), Linköping University, 58183 Linköping, Sweden
| | - David González-Rodríguez
- Nanostructured
Molecular Systems and Materials Group, Organic Chemistry Department, Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Institute
for Advanced Research in Chemical Sciences (IAdChem), Universidad
Autónoma de Madrid, 28049 Madrid, Spain
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3
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Arja K, Selegård R, Paloncýová M, Linares M, Lindgren M, Norman P, Aili D, Nilsson KPR. Self-Assembly of Chiro-Optical Materials from Nonchiral Oligothiophene-Porphyrin Derivatives and Random Coil Synthetic Peptides. Chempluschem 2023; 88:e202200262. [PMID: 36173143 DOI: 10.1002/cplu.202200262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/01/2022] [Indexed: 01/04/2023]
Abstract
Biomimetic chiral optoelectronic materials can be utilized in electronic devices, biosensors and artificial enzymes. Herein, this work reports the chiro-optical properties and architectural arrangement of optoelectronic materials generated from self-assembly of initially nonchiral oligothiophene-porphyrin derivatives and random coil synthetic peptides. The photo-physical- and structural properties of the materials were assessed by absorption-, fluorescence- and circular dichroism spectroscopy, as well as dynamic light scattering, scanning electron microscopy and theoretical calculations. The materials display a three-dimensional ordered helical structure and optical activity that are observed due to an induced chirality of the optoelectronic element upon interaction with the peptide. Both these properties are influenced by the chemical composition of the oligothiophene-porphyrin derivative, as well as the peptide sequence. We foresee that our findings will aid in developing self-assembled optoelectronic materials with dynamic architectonical accuracies, as well as offer the possibility to generate the next generation of materials for a variety of bioelectronic applications.
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Affiliation(s)
- Katriann Arja
- Division of Chemistry Department of Physics, Chemistry and Biology, Linköping University, 581 83, Linköping, Sweden
| | - Robert Selegård
- Laboratory of Molecular Materials Division of Biophysics and Bioengineering Department of Physics, Chemistry and Biology, Linköping University, 581 83, Linköping, Sweden
| | - Markéta Paloncýová
- Division of Theoretical Chemistry and Biology School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, 106 91, Stockholm, Sweden
- Regional Centre of Advanced Technologies and Materials Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc, 779 00, Olomouc, Czech Republic
| | - Mathieu Linares
- Laboratory of Organic Electronics and Group of Scientific Visualization Department of Science and Technology (ITN), Linköping University, 601 74, Norrköping, Sweden
| | - Mikael Lindgren
- Department of Physics, Norwegian University of Science and Technology, 7491, Trondheim, Norway
| | - Patrick Norman
- Division of Theoretical Chemistry and Biology School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, 106 91, Stockholm, Sweden
| | - Daniel Aili
- Laboratory of Molecular Materials Division of Biophysics and Bioengineering Department of Physics, Chemistry and Biology, Linköping University, 581 83, Linköping, Sweden
| | - K Peter R Nilsson
- Division of Chemistry Department of Physics, Chemistry and Biology, Linköping University, 581 83, Linköping, Sweden
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4
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Bäck M, Selegård R, Todarwal Y, Nyström S, Norman P, Linares M, Hammarström P, Lindgren M, Nilsson KPR. Tyrosine Side-Chain Functionalities at Distinct Positions Determine the Chirooptical Properties and Supramolecular Structures of Pentameric Oligothiophenes. ChemistryOpen 2020; 9:1100-1108. [PMID: 33163327 PMCID: PMC7607451 DOI: 10.1002/open.202000144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 09/23/2020] [Indexed: 11/06/2022] Open
Abstract
Control over the photophysical properties and molecular organization of π-conjugated oligothiophenes is essential to their use in organic electronics. Herein we synthesized and characterized a variety of anionic pentameric oligothiophenes with different substitution patterns of L- or D-tyrosine at distinct positions along the thiophene backbone. Spectroscopic, microscopic, and theoretical studies of L- or D-tyrosine substituted pentameric oligothiophene conjugates revealed the formation of optically active π-stacked self-assembled aggregates under acid conditions. The distinct photophysical characteristics, as well as the supramolecular structures of the assemblies, were highly influenced by the positioning of the L- or D-tyrosine moieties along the thiophene backbone. Overall, the obtained results clearly demonstrate how fundamental changes in the position of the enantiomeric side-chain functionalities greatly affect the optical properties as well as the architecture of the self-assembled supramolecular structures.
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Affiliation(s)
- Marcus Bäck
- Division of Chemistry, Department of Physics, Chemistry and BiologyLinköping University581 83LinköpinSweden
| | - Robert Selegård
- Division of Biophysics and Bioengineering, Department of Physics, Chemistry and BiologyLinköping University581 83LinköpingSweden
| | - Yogesh Todarwal
- Department of Theoretical Chemistry and BiologyKTH Royal Institute of TechnologySE-106 91StockholmSweden
| | - Sofie Nyström
- Division of Chemistry, Department of Physics, Chemistry and BiologyLinköping University581 83LinköpinSweden
| | - Patrick Norman
- Department of Theoretical Chemistry and BiologyKTH Royal Institute of TechnologySE-106 91StockholmSweden
| | - Mathieu Linares
- Laboratory of Organic Electronics, ITNLinköping UniversitySE-601 74NorrköpingSweden
- Scientific Visualization group, ITNLinköping UniversitySE-601 74NorrköpingSweden
- Swedish e-Science Research Center (SeRC)Linköping University581 83LinköpingSweden
| | - Per Hammarström
- Division of Chemistry, Department of Physics, Chemistry and BiologyLinköping University581 83LinköpinSweden
| | - Mikael Lindgren
- Division of Chemistry, Department of Physics, Chemistry and BiologyLinköping University581 83LinköpinSweden
- Department of PhysicsNorwegian University of Science and Technology, Gløshaugen7491TrondheimNorway
| | - K. Peter R. Nilsson
- Division of Chemistry, Department of Physics, Chemistry and BiologyLinköping University581 83LinköpinSweden
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5
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Butina K, Tomac A, Choong FX, Shirani H, Nilsson KPR, Löffler S, Richter-Dahlfors A. Optotracing for selective fluorescence-based detection, visualization and quantification of live S. aureus in real-time. NPJ Biofilms Microbiomes 2020; 6:35. [PMID: 33037198 PMCID: PMC7547713 DOI: 10.1038/s41522-020-00150-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 09/10/2020] [Indexed: 11/09/2022] Open
Abstract
Methods for bacterial detection are needed to advance the infection research and diagnostics. Based on conformation-sensitive fluorescent tracer molecules, optotracing was recently established for dynamic detection and visualization of structural amyloids and polysaccharides in the biofilm matrix of gram-negative bacteria. Here, we extend the use of optotracing for detection of gram-positive bacteria, focussing on the clinically relevant opportunistic human pathogen Staphylococcus aureus. We identify a donor-acceptor-donor-type optotracer, whose binding-induced fluorescence enables real-time detection, quantification, and visualization of S. aureus in monoculture and when mixed with gram-negative Salmonella Enteritidis. An algorithm-based automated high-throughput screen of 1920 S. aureus transposon mutants recognized the cell envelope as the binding target, which was corroborated by super-resolution microscopy of bacterial cells and spectroscopic analysis of purified cell wall components. The binding event was essentially governed by hydrophobic interactions, which permitted custom-designed tuning of the binding selectivity towards S. aureus versus Enterococcus faecalis by appropriate selection of buffer conditions. Collectively this work demonstrates optotracing as an enabling technology relevant for any field of basic and applied research, where visualization and detection of S. aureus is needed.
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Affiliation(s)
- Karen Butina
- AIMES-Center for the Advancement of Integrated Medical and Engineering Sciences at Karolinska Institutet and KTH Royal Institute of Technology, Stockholm, Sweden.,Department of Neuroscience, Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Ana Tomac
- AIMES-Center for the Advancement of Integrated Medical and Engineering Sciences at Karolinska Institutet and KTH Royal Institute of Technology, Stockholm, Sweden.,Department of Neuroscience, Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Ferdinand X Choong
- AIMES-Center for the Advancement of Integrated Medical and Engineering Sciences at Karolinska Institutet and KTH Royal Institute of Technology, Stockholm, Sweden.,Department of Neuroscience, Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Hamid Shirani
- Department of Chemistry, IFM, Linköping University, SE-581 83, Linköping, Sweden
| | - K Peter R Nilsson
- AIMES-Center for the Advancement of Integrated Medical and Engineering Sciences at Karolinska Institutet and KTH Royal Institute of Technology, Stockholm, Sweden.,Department of Chemistry, IFM, Linköping University, SE-581 83, Linköping, Sweden
| | - Susanne Löffler
- AIMES-Center for the Advancement of Integrated Medical and Engineering Sciences at Karolinska Institutet and KTH Royal Institute of Technology, Stockholm, Sweden.,Department of Neuroscience, Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Agneta Richter-Dahlfors
- AIMES-Center for the Advancement of Integrated Medical and Engineering Sciences at Karolinska Institutet and KTH Royal Institute of Technology, Stockholm, Sweden. .,Department of Neuroscience, Karolinska Institutet, SE-171 77, Stockholm, Sweden.
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6
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Sinsinbar G, Gudlur S, Wood SE, Ammanath G, Yildiz HU, Alagappan P, Mrksich M, Liedberg B. Outer‐Membrane Protease (OmpT) Based
E. coli
Sensing with Anionic Polythiophene and Unlabeled Peptide Substrate. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008444] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Gaurav Sinsinbar
- Centre for Biomimetic Sensor Science School of Materials Science Engineering Nanyang Technological University 50 Nanyang Drive Singapore 637553 Singapore
| | - Sushanth Gudlur
- Centre for Biomimetic Sensor Science School of Materials Science Engineering Nanyang Technological University 50 Nanyang Drive Singapore 637553 Singapore
| | - Sarah E. Wood
- Departments of Chemistry and Biomedical Engineering Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Gopal Ammanath
- Centre for Biomimetic Sensor Science School of Materials Science Engineering Nanyang Technological University 50 Nanyang Drive Singapore 637553 Singapore
| | - Hakan U. Yildiz
- Department of Chemistry Izmir Institute of Technology Urla 35430 Izmir Turkey
| | - Palaniappan Alagappan
- Centre for Biomimetic Sensor Science School of Materials Science Engineering Nanyang Technological University 50 Nanyang Drive Singapore 637553 Singapore
| | - Milan Mrksich
- Departments of Chemistry and Biomedical Engineering Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Bo Liedberg
- Centre for Biomimetic Sensor Science School of Materials Science Engineering Nanyang Technological University 50 Nanyang Drive Singapore 637553 Singapore
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7
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Sinsinbar G, Gudlur S, Wood SE, Ammanath G, Yildiz HU, Alagappan P, Mrksich M, Liedberg B. Outer-Membrane Protease (OmpT) Based E. coli Sensing with Anionic Polythiophene and Unlabeled Peptide Substrate. Angew Chem Int Ed Engl 2020; 59:18068-18077. [PMID: 32618102 DOI: 10.1002/anie.202008444] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Indexed: 01/07/2023]
Abstract
E. coli and Salmonella are two of the most common bacterial pathogens involved in foodborne and waterborne related deaths. Hence, it is critical to develop rapid and sensitive detection strategies for near-outbreak applications. Reported is a simple and specific assay to detect as low as 1 CFU mL-1 of E. coli in water within 6 hours by targeting the bacteria's surface protease activity. The assay relies on polythiophene acetic acid (PTAA) as an optical reporter and a short unlabeled peptide (LL37FRRV ) previously optimized as a substrate for OmpT, an outer-membrane protease on E. coli. LL37FRRV interacts with PTAA to enhance its fluorescence while also inducing the formation of a helical PTAA-LL37FRRV construct, as confirmed by circular dichroism. However, in the presence of E. coli LL37FRRV is cleaved and can no longer affect the conformations and optical properties of PTAA. This ability to distinguish between an intact and cleaved peptide was investigated in detail using LL37FRRV sequence variants.
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Affiliation(s)
- Gaurav Sinsinbar
- Centre for Biomimetic Sensor Science, School of Materials Science Engineering, Nanyang Technological University, 50 Nanyang Drive, Singapore, 637553, Singapore
| | - Sushanth Gudlur
- Centre for Biomimetic Sensor Science, School of Materials Science Engineering, Nanyang Technological University, 50 Nanyang Drive, Singapore, 637553, Singapore
| | - Sarah E Wood
- Departments of Chemistry and Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Gopal Ammanath
- Centre for Biomimetic Sensor Science, School of Materials Science Engineering, Nanyang Technological University, 50 Nanyang Drive, Singapore, 637553, Singapore
| | - Hakan U Yildiz
- Department of Chemistry, Izmir Institute of Technology, Urla, 35430, Izmir, Turkey
| | - Palaniappan Alagappan
- Centre for Biomimetic Sensor Science, School of Materials Science Engineering, Nanyang Technological University, 50 Nanyang Drive, Singapore, 637553, Singapore
| | - Milan Mrksich
- Departments of Chemistry and Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Bo Liedberg
- Centre for Biomimetic Sensor Science, School of Materials Science Engineering, Nanyang Technological University, 50 Nanyang Drive, Singapore, 637553, Singapore
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8
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Yakeya D, Yoshida Y, Endo T. Phosgene-free and Chemoselective Synthesis of Novel Polyureas from Activated l-Lysine with Diphenyl Carbonate. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01039] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Daisuke Yakeya
- Molecular Engineering Institute, Kyushu Institute of Technology, 1-1 Sensui-cho, Tobata-ku, Kitakyushu-shi, Fukuoka 804-8550, Japan
| | - Yoshiaki Yoshida
- Molecular Engineering Institute, Kyushu Institute of Technology, 1-1 Sensui-cho, Tobata-ku, Kitakyushu-shi, Fukuoka 804-8550, Japan
| | - Takeshi Endo
- Molecular Engineering Institute, Kyushu Institute of Technology, 1-1 Sensui-cho, Tobata-ku, Kitakyushu-shi, Fukuoka 804-8550, Japan
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9
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Panda SS, Shmilovich K, Ferguson AL, Tovar JD. Computationally Guided Tuning of Amino Acid Configuration Influences the Chiroptical Properties of Supramolecular Peptide-π-Peptide Nanostructures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:6782-6792. [PMID: 32491857 DOI: 10.1021/acs.langmuir.0c00961] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Self-assembled supramolecular materials derived from peptidic macromolecules with π-conjugated building blocks are of enormous interest because of their aqueous solubility and biocompatibility. The design rules to achieve tailored optoelectronic properties from these types of materials can be guided by computation and virtual screening rather than intuition-based experimental trial-and-error. Using machine learning, we reported previously that the supramolecular chirality in self-assembled aggregates from VEVAG-π-GAVEV type peptidic materials was most strongly influenced by hydrogen bonding and hydrophobic packing of the alanine and valine residues. Herein, we build upon this idea to demonstrate through molecular-level experimental characterization and all-atom molecular modeling that varying the stereogenic centers of these residues has a profound impact on the optoelectronic properties of the supramolecular aggregates, whereas the variation of stereogenic centers of other residues has only nominal influence on these properties. This study highlights the synergy between computational and experimental insight relevant to the control of chiroptical or other electronic properties associated with supramolecular materials.
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Affiliation(s)
| | - Kirill Shmilovich
- Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637, United States
| | - Andrew L Ferguson
- Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637, United States
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10
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Panda SS, Shmilovich K, Ferguson AL, Tovar JD. Controlling Supramolecular Chirality in Peptide-π-Peptide Networks by Variation of the Alkyl Spacer Length. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:14060-14073. [PMID: 31566986 DOI: 10.1021/acs.langmuir.9b02683] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Self-assembled supramolecular organic materials with π-functionalities are of great interest because of their applications as biocompatible nanoelectronics. A detailed understanding of molecular parameters to modulate the formation of hierarchical structures can inform design principles for materials with engineered optical and electronic properties. In this work, we combine molecular-level characterization techniques with all-atom molecular simulations to investigate the subtle relationship between the chemical structure of peptide-π-peptide molecules and the emergent supramolecular chirality of their spontaneously self-assembled nanoaggregates. We demonstrate through circular dichroism measurements that we can modulate the chirality by incorporating alkyl spacers of various lengths in between the peptides and thienylene-phenylene π-system chromophores: even numbers of alkyl carbons in the spacer units (0, 2) induce M-type helical character whereas odd numbers (1, 3) induce P-type. Corroborating molecular dynamics simulations and explicating machine learning analysis techniques identify hydrogen bonding and hydrophobic packing to be the principal discriminants of the observed chirality switches. Our results present a molecular-level design rule to engineer chirality into optically and electronically active nanoaggregates of these peptidic building blocks by exploiting systematic variations in the alkyl spacer length.
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Affiliation(s)
| | - Kirill Shmilovich
- Pritzker School of Molecular Engineering , University of Chicago , 5640 South Ellis Avenue , Chicago , Illinois 60637 , United States
| | - Andrew L Ferguson
- Pritzker School of Molecular Engineering , University of Chicago , 5640 South Ellis Avenue , Chicago , Illinois 60637 , United States
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11
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Fossépré M, Trévisan ME, Cyriaque V, Wattiez R, Beljonne D, Richeter S, Clément S, Surin M. Detection of the Enzymatic Cleavage of DNA through Supramolecular Chiral Induction to a Cationic Polythiophene. ACS APPLIED BIO MATERIALS 2019; 2:2125-2136. [DOI: 10.1021/acsabm.9b00123] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Mathieu Fossépré
- Laboratory for Chemistry of Novel Materials, Centre of Innovation and Research in Materials and Polymers (CIRMAP), University of Mons (UMONS), 20 Place du Parc, Mons B-7000, Belgium
| | - Marie E. Trévisan
- Laboratory for Chemistry of Novel Materials, Centre of Innovation and Research in Materials and Polymers (CIRMAP), University of Mons (UMONS), 20 Place du Parc, Mons B-7000, Belgium
| | - Valentine Cyriaque
- Proteomics and Microbiology Lab, Research Institute for Biosciences, University of Mons (UMONS), Avenue du Champs de Mars 6, Mons 7000, Belgium
| | - Ruddy Wattiez
- Proteomics and Microbiology Lab, Research Institute for Biosciences, University of Mons (UMONS), Avenue du Champs de Mars 6, Mons 7000, Belgium
| | - David Beljonne
- Laboratory for Chemistry of Novel Materials, Centre of Innovation and Research in Materials and Polymers (CIRMAP), University of Mons (UMONS), 20 Place du Parc, Mons B-7000, Belgium
| | - Sébastien Richeter
- Institut Charles Gerhardt ICGM, UMR 5253 CNRS-ENSCM-UM, Université de Montpellier, CC1701 Place Eugène Bataillon, Montpellier Cedex 05F-34095, France
| | - Sébastien Clément
- Institut Charles Gerhardt ICGM, UMR 5253 CNRS-ENSCM-UM, Université de Montpellier, CC1701 Place Eugène Bataillon, Montpellier Cedex 05F-34095, France
| | - Mathieu Surin
- Laboratory for Chemistry of Novel Materials, Centre of Innovation and Research in Materials and Polymers (CIRMAP), University of Mons (UMONS), 20 Place du Parc, Mons B-7000, Belgium
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12
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Rouhbakhsh Z, Aili D, Martinsson E, Svärd A, Bäck M, Housaindokht MR, Nilsson KPR, Selegård R. Self-Assembly of a Structurally Defined Chiro-Optical Peptide-Oligothiophene Hybrid Material. ACS OMEGA 2018; 3:15066-15075. [PMID: 31458172 PMCID: PMC6643387 DOI: 10.1021/acsomega.8b02153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 10/12/2018] [Indexed: 06/10/2023]
Abstract
Conducting polymers are routinely used in optoelectronic biomaterials, but large polymer polydispersity and poor aqueous compatibility complicate integration with biomolecular templates and development of discrete and defined supramolecular complexes. Herein, we report on a chiro-optical hybrid material generated by the self-assembly of an anionic peptide and a chemically defined cationic pentameric thiophene in aqueous environment. The peptide acts as a stereochemical template for the thiophene and adopts an α-helical conformation upon association, inducing optical activity in the thiophene π-π* transition region. Theoretical calculations confirm the experimentally observed induced structural changes and indicate the importance of electrostatic interactions in the complex. The association process is also probed at the substrate-solvent interface using peptide-functionalized gold nanoparticles, indicating that the peptide can also act as a scaffold when immobilized, resulting in structurally well-defined supramolecular complexes. The hybrid complex could rapidly be assembled, and the kinetics of the formation could be monitored by utilizing the local surface plasmon resonance originating from the gold nanoparticles. We foresee that these findings will aid in designing novel hybrid materials and provide a possible route for the development of functional optoelectronic interfaces for both biomaterials and energy harvesting applications.
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Affiliation(s)
- Zeinab Rouhbakhsh
- Laboratory
of Molecular Materials, Division of Molecular Physics,
Department of Physics, Chemistry and Biology, and Division of Chemistry, Department
of Physics, Chemistry and Biology, Linköping
University, 581 83 Linköping, Sweden
- Biophysical
Chemistry Laboratory, Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, 91775-1436 Mashhad, Iran
| | - Daniel Aili
- Laboratory
of Molecular Materials, Division of Molecular Physics,
Department of Physics, Chemistry and Biology, and Division of Chemistry, Department
of Physics, Chemistry and Biology, Linköping
University, 581 83 Linköping, Sweden
| | - Erik Martinsson
- Laboratory
of Molecular Materials, Division of Molecular Physics,
Department of Physics, Chemistry and Biology, and Division of Chemistry, Department
of Physics, Chemistry and Biology, Linköping
University, 581 83 Linköping, Sweden
| | - Anna Svärd
- Laboratory
of Molecular Materials, Division of Molecular Physics,
Department of Physics, Chemistry and Biology, and Division of Chemistry, Department
of Physics, Chemistry and Biology, Linköping
University, 581 83 Linköping, Sweden
| | - Marcus Bäck
- Laboratory
of Molecular Materials, Division of Molecular Physics,
Department of Physics, Chemistry and Biology, and Division of Chemistry, Department
of Physics, Chemistry and Biology, Linköping
University, 581 83 Linköping, Sweden
| | - Mohammad R. Housaindokht
- Biophysical
Chemistry Laboratory, Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, 91775-1436 Mashhad, Iran
| | - K. Peter R. Nilsson
- Laboratory
of Molecular Materials, Division of Molecular Physics,
Department of Physics, Chemistry and Biology, and Division of Chemistry, Department
of Physics, Chemistry and Biology, Linköping
University, 581 83 Linköping, Sweden
| | - Robert Selegård
- Laboratory
of Molecular Materials, Division of Molecular Physics,
Department of Physics, Chemistry and Biology, and Division of Chemistry, Department
of Physics, Chemistry and Biology, Linköping
University, 581 83 Linköping, Sweden
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