1
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Redondo-Gómez C, Parreira P, Martins MCL, Azevedo HS. Peptide-based self-assembled monolayers (SAMs): what peptides can do for SAMs and vice versa. Chem Soc Rev 2024; 53:3714-3773. [PMID: 38456490 DOI: 10.1039/d3cs00921a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
Self-assembled monolayers (SAMs) represent highly ordered molecular materials with versatile biochemical features and multidisciplinary applications. Research on SAMs has made much progress since the early begginings of Au substrates and alkanethiols, and numerous examples of peptide-displaying SAMs can be found in the literature. Peptides, presenting increasing structural complexity, stimuli-responsiveness, and biological relevance, represent versatile functional components in SAMs-based platforms. This review examines the major findings and progress made on the use of peptide building blocks displayed as part of SAMs with specific functions, such as selective cell adhesion, migration and differentiation, biomolecular binding, advanced biosensing, molecular electronics, antimicrobial, osteointegrative and antifouling surfaces, among others. Peptide selection and design, functionalisation strategies, as well as structural and functional characteristics from selected examples are discussed. Additionally, advanced fabrication methods for dynamic peptide spatiotemporal presentation are presented, as well as a number of characterisation techniques. All together, these features and approaches enable the preparation and use of increasingly complex peptide-based SAMs to mimic and study biological processes, and provide convergent platforms for high throughput screening discovery and validation of promising therapeutics and technologies.
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Affiliation(s)
- Carlos Redondo-Gómez
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-135, Portugal.
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-135, Portugal
| | - Paula Parreira
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-135, Portugal.
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-135, Portugal
| | - M Cristina L Martins
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-135, Portugal.
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-135, Portugal
- ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 4050-313 Porto, Portugal
| | - Helena S Azevedo
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-135, Portugal.
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-135, Portugal
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2
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Forlano N, Bucci R, Contini A, Venanzi M, Placidi E, Gelmi ML, Lettieri R, Gatto E. Non-Conventional Peptide Self-Assembly into a Conductive Supramolecular Rope. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13020333. [PMID: 36678086 PMCID: PMC9867255 DOI: 10.3390/nano13020333] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 01/09/2023] [Accepted: 01/10/2023] [Indexed: 05/27/2023]
Abstract
Structures composed of alternating α and β amino acids can give rise to peculiar secondary structural motifs, which could self-assemble into complex structures of controlled geometries. This work describes the self-assembly properties of an α,β-peptide, containing three units of syn H2-(2-F-Phe)-h-PheGly-OH, able to self-organize on surfaces into a fascinating supramolecular rope. This material was characterized by AFM, electronic conduction and fluorescence measurements. Molecular dynamics simulations showed that this hexapeptide can self-assemble into an antiparallel β-sheet layer, stabilized by intermolecular H-bonds, which, in turn, can self-assemble into many side-by-side layers, due to π-π interactions. As a matter of fact, we demonstrated that in this system, the presence of aromatic residues at the intramolecular interface promoted by the alternation of α,β-amino-acids in the primary sequence, endorses the formation of a super-secondary structure where the aromatic groups are close to each other, conferring to the system good electron conduction properties. This work demonstrates the capability and future potential of designing and fabricating distinctive nanostructures and efficient bioelectronic interfaces based on an α,β-peptide, by controlling structure and interaction processes beyond those obtained with α- or β-peptides alone.
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Affiliation(s)
- Nicola Forlano
- Department of Chemical Science and Technologies, University of Rome “Tor Vergata”, Via della Ricerca Scientifica, 00133 Roma, Italy
| | - Raffaella Bucci
- Department of Pharmaceutical Sciences, University of Milan, Via Venezian 21, 20133 Milan, Italy
| | - Alessandro Contini
- Department of Pharmaceutical Sciences, University of Milan, Via Venezian 21, 20133 Milan, Italy
| | - Mariano Venanzi
- Department of Chemical Science and Technologies, University of Rome “Tor Vergata”, Via della Ricerca Scientifica, 00133 Roma, Italy
| | - Ernesto Placidi
- Department of Physics, Sapienza University of Rome, P.le Aldo Moro 2, 00185 Rome, Italy
| | - Maria Luisa Gelmi
- Department of Pharmaceutical Sciences, University of Milan, Via Venezian 21, 20133 Milan, Italy
| | - Raffaella Lettieri
- Department of Chemical Science and Technologies, University of Rome “Tor Vergata”, Via della Ricerca Scientifica, 00133 Roma, Italy
| | - Emanuela Gatto
- Department of Chemical Science and Technologies, University of Rome “Tor Vergata”, Via della Ricerca Scientifica, 00133 Roma, Italy
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3
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Stern Bauer T, Yakobi R, Hurevich M, Yitzchaik S, Hayouka Z. Impedimetric Bacterial Detection Using Random Antimicrobial Peptide Mixtures. SENSORS (BASEL, SWITZERLAND) 2023; 23:561. [PMID: 36679359 PMCID: PMC9866871 DOI: 10.3390/s23020561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/19/2022] [Accepted: 12/28/2022] [Indexed: 06/17/2023]
Abstract
The biosensing of bacterial pathogens is of a high priority. Electrochemical biosensors are an important future tool for rapid bacteria detection. A monolayer of bacterial-binding peptides can serve as a recognition layer in such detection devices. Here, we explore the potential of random peptide mixtures (RPMs) composed of phenylalanine and lysine in random sequences and of controlled length, to form a monolayer that can be utilized for sensing. RPMs were found to assemble in a thin and diluted layer that attracts various bacteria. Faradaic electrochemical impedance spectroscopy was used with modified gold electrodes to measure the charge-transfer resistance (RCT) caused due to the binding of bacteria to RPMs. Pseudomonas aeruginosa was found to cause the most prominent increase in RCT compared to other model bacteria. We show that the combination of highly accessible antimicrobial RPMs and electrochemical analysis can be used to generate a new promising line of bacterial biosensors.
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Affiliation(s)
- Tal Stern Bauer
- Institute of Biochemistry, Food Science and Nutrition, Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Ravit Yakobi
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Mattan Hurevich
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Shlomo Yitzchaik
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Zvi Hayouka
- Institute of Biochemistry, Food Science and Nutrition, Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel
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4
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Sondhi P, Neupane D, Bhattarai JK, Demchenko AV, Stine KJ. Facile fabrication of hierarchically nanostructured gold electrode for bio-electrochemical applications. J Electroanal Chem (Lausanne) 2022; 924:116865. [PMID: 36405880 PMCID: PMC9673609 DOI: 10.1016/j.jelechem.2022.116865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Nanoporous gold (NPG) is one of the most extensively investigated nanomaterials owing to its tunable pore size, ease of surface modification, and range of applications from catalysis, actuation, and molecular release to the development of electrochemical sensors. In an effort to improve the usefulness of NPG, a simple and robust method for the fabrication of hierarchical and bimodal nanoporous gold electrodes (hb-NPG) containing both macro-and mesopores is reported using electrochemical alloying and dealloying processes to engineer a bicontinuous solid/void morphology. Scanning electron microscopy (color SEM) images depict the hierarchical pore structure created after the multistep synthesis with an ensemble of tiny pores below 100 nm in size located in ligaments spanning larger pores of several hundred nanometers. Smaller-sized pores are exploited for surface modification, and the network of larger pores aids in molecular transport. Cyclic voltammetry (CV) was used to compare the electrochemically active surface area of the hierarchical bimodal structure with that of the regular unimodal NPG with an emphasis on the critical role of both dealloying and annealing in creating the desired structure. The adsorption of different proteins was followed using UV-vis absorbance measurements of solution depletion revealing the high loading capacity of hb-NPG. The surface coverage of lipoic acid on the hb-NPG was analyzed using thermogravimetric analysis (TGA) and reductive desorption. The roughness factor determinations suggest that the fabricated hb-NPG electrode has tremendous potential for biosensor development by changing the scaling relations between volume and surface area which may lead to improved analytical performance. We have chosen to take advantage of the surface architectures of hb-NPG due to the presence of a large specific surface area for functionalization and rapid transport pathways for faster response. It is shown that the hb-NPG electrode has a higher sensitivity for the amperometric detection of glucose than does an NPG electrode of the same geometric surface area.
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Affiliation(s)
- Palak Sondhi
- Department of Chemistry and Biochemistry, University of Missouri–St. Louis, Saint Louis, MO 63121, USA
| | - Dharmendra Neupane
- Department of Chemistry and Biochemistry, University of Missouri–St. Louis, Saint Louis, MO 63121, USA
| | - Jay K. Bhattarai
- Department of Chemistry and Biochemistry, University of Missouri–St. Louis, Saint Louis, MO 63121, USA
| | | | - Keith J. Stine
- Department of Chemistry and Biochemistry, University of Missouri–St. Louis, Saint Louis, MO 63121, USA
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Abstract
In September 2015, the ONU approved the Global Agenda for Sustainable Development, by which all countries of the world are mobilized to adopt a set of goals to be achieved by 2030. Within these goals, the aim of having a responsible production and consumption, as well as taking climate action, made is necessary to design new eco-friendly materials. Another important UN goal is the possibility for all the countries in the world to access affordable energy. The most promising and renewable energy source is solar energy. Current solar cells use non-biodegradable substrates, which generally contribute to environmental pollution at the end of their life cycles. Therefore, the production of green and biodegradable electronic devices is a great challenge, prompted by the need to find sustainable alternatives to the current materials, particularly in the field of dye-sensitized solar cells. Within the green alternatives, biopolymers extracted from biomass, such as polysaccharides and proteins, represent the most promising materials in view of a circular economy perspective. In particular, peptides, due to their stability, good self-assembly properties, and ease of functionalization, may be good candidates for the creation of dye sensitized solar cell (DSSC) technology. This work shows an overview of the use of peptides in DSSC. Peptides, due to their unique self-assembling properties, have been used both as dyes (mimicking natural photosynthesis) and as templating materials for TiO2 morphology. We are just at the beginning of the exploitation of these promising biomolecules, and a great deal of work remains to be done.
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6
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Sakurai Y, Sawada T, Serizawa T. Phosphorylase-catalyzed synthesis and self-assembled structures of cellulose oligomers in the presence of protein denaturants. Polym J 2021. [DOI: 10.1038/s41428-021-00592-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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7
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Biondi B, Cardena R, Bisello A, Schiesari R, Cerveson L, Facci M, Rancan M, Formaggio F, Santi S. Flat, Ferrocenyl‐Conjugated Peptides: A Combined Electrochemical and Spectroscopic Study. ChemElectroChem 2021. [DOI: 10.1002/celc.202100597] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Barbara Biondi
- Institute of Biomolecular Chemistry Padova Unit, CNR via Marzolo 1 35131 Padova Italy
| | - Roberta Cardena
- Department of Chemical Sciences University of Padova via Marzolo 1 35131 Padova Italy
| | - Annalisa Bisello
- Department of Chemical Sciences University of Padova via Marzolo 1 35131 Padova Italy
| | - Renato Schiesari
- Department of Chemical Sciences University of Padova via Marzolo 1 35131 Padova Italy
| | - Laura Cerveson
- Department of Chemical Sciences University of Padova via Marzolo 1 35131 Padova Italy
| | - Martino Facci
- Department of Chemical Sciences University of Padova via Marzolo 1 35131 Padova Italy
| | - Marzio Rancan
- Institute of Condensed Matter Chemistry and Technologies for Energy (ICMATE), CNR Via Marzolo, 1 35131 Padova Italy
| | - Fernando Formaggio
- Institute of Biomolecular Chemistry Padova Unit, CNR via Marzolo 1 35131 Padova Italy
- Department of Chemical Sciences University of Padova via Marzolo 1 35131 Padova Italy
| | - Saverio Santi
- Department of Chemical Sciences University of Padova via Marzolo 1 35131 Padova Italy
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8
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Kubitzky S, Venanzi M, Biondi B, Lettieri R, De Zotti M, Gatto E. A pH-Induced Reversible Conformational Switch Able to Control the Photocurrent Efficiency in a Peptide Supramolecular System. Chemistry 2021; 27:2810-2817. [PMID: 33107646 DOI: 10.1002/chem.202004527] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Indexed: 11/06/2022]
Abstract
External stimuli are potent tools that Nature uses to control protein function and activity. For instance, during viral entry and exit, pH variations are known to trigger large protein conformational changes. In Nature, also the electron transfer (ET) properties of ET proteins are influenced by pH-induced conformational changes. In this work, a pH-controlled, reversible 310 -helix to α-helix conversion (from acidic to highly basic pH values and vice versa) of a peptide supramolecular system built on a gold surface is described. The effect of pH on the ability of the peptide SAM to generate a photocurrent was investigated, with particular focus on the effect of the pH-induced conformational change on photocurrent efficiency. The films were characterized by electrochemical and spectroscopic techniques, and were found to be very stable over time, also in contact with a solution. They were also able to generate current under illumination, with an efficiency that is the highest recorded so far with biomolecular systems.
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Affiliation(s)
- Sascha Kubitzky
- Faculty of Engineering and Natural Sciences, Technische Hochschule Wildau, Wildau, 15745, Germany
| | - Mariano Venanzi
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, 00133, Rome, Italy
| | - Barbara Biondi
- Institute of Biomolecular Chemistry, Padova Unit, CNR, Department of Chemistry, University of Padova, 35131, Padova, Italy
| | - Raffaella Lettieri
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, 00133, Rome, Italy
| | - Marta De Zotti
- Institute of Biomolecular Chemistry, Padova Unit, CNR, Department of Chemistry, University of Padova, 35131, Padova, Italy
| | - Emanuela Gatto
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, 00133, Rome, Italy
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9
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Piccoli JP, Soares AC, Oliveira ON, Cilli EM. Nanostructured functional peptide films and their application in C-reactive protein immunosensors. Bioelectrochemistry 2020; 138:107692. [PMID: 33291002 DOI: 10.1016/j.bioelechem.2020.107692] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 10/25/2020] [Accepted: 10/27/2020] [Indexed: 12/31/2022]
Abstract
Peptides with an active redox molecule are incorporated into nanostructured films for electrochemical biosensors with stable and controllable physicochemical properties. In this study, we synthesized three ferrocene (Fc)-containing peptides with the sequence Fc-Glu-(Ala)n-Cys-NH2, which could form self-assembled monolayers on gold and be attached to antibodies. The peptide with two alanines (n = 2) yielded the immunosensor with the highest performance in detecting C-reactive protein (CRP), a biomarker of inflammation. Using electrochemical impedance-derived capacitive spectroscopy, the limit of detection was 240 pM with a dynamic range that included clinically relevant CRP concentrations. With a combination of electrochemical methods and polarization-modulated infrared reflection-absorption spectroscopy, we identified the chemical groups involved in the antibody-CRP interaction, and were able to relate the highest performance for the peptide with n = 2 to chain length and efficient packing in the organized films. These strategies to design peptides and methods to fabricate the immunosensors are generic, and can be applied to other types of biosensors, including in low cost platforms for point-of-care diagnostics.
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Affiliation(s)
- Julia P Piccoli
- São Carlos Institute of Physics, University of São Paulo, 13566-590 São Carlos - SP, Brazil
| | - Andrey C Soares
- São Carlos Institute of Physics, University of São Paulo, 13566-590 São Carlos - SP, Brazil; Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, 13560-970 São Carlos - SP, Brazil
| | - Osvaldo N Oliveira
- São Carlos Institute of Physics, University of São Paulo, 13566-590 São Carlos - SP, Brazil.
| | - Eduardo M Cilli
- Institute of Chemistry, São Paulo State University, 14800-060 Araraquara - SP, Brazil.
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10
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Pang X, Li W, Landwehr E, Yuan Y, Wang W, Azevedo HS. Mimicking the endothelial glycocalyx through the supramolecular presentation of hyaluronan on patterned surfaces. Faraday Discuss 2019; 219:168-182. [DOI: 10.1039/c9fd00015a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Self-assembled monolayers of hyaluronan (HA)-binding peptide allow immobilization of HA for studying the function of the endothelial glycocalyx.
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Affiliation(s)
- Xinqing Pang
- School of Engineering and Materials Science
- Queen Mary University of London
- London E1 4NS
- UK
- Institute of Bioengineering
| | - Weiqi Li
- School of Engineering and Materials Science
- Queen Mary University of London
- London E1 4NS
- UK
- Institute of Bioengineering
| | - Eliane Landwehr
- Department of Chemistry
- University of Konstanz
- Konstanz 78464
- Germany
| | - Yichen Yuan
- School of Engineering and Materials Science
- Queen Mary University of London
- London E1 4NS
- UK
- Institute of Bioengineering
| | - Wen Wang
- School of Engineering and Materials Science
- Queen Mary University of London
- London E1 4NS
- UK
- Institute of Bioengineering
| | - Helena S. Azevedo
- School of Engineering and Materials Science
- Queen Mary University of London
- London E1 4NS
- UK
- Institute of Bioengineering
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11
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Piccoli J, Hein R, El-Sagheer AH, Brown T, Cilli EM, Bueno PR, Davis JJ. Redox Capacitive Assaying of C-Reactive Protein at a Peptide Supported Aptamer Interface. Anal Chem 2018; 90:3005-3008. [PMID: 29411973 DOI: 10.1021/acs.analchem.7b05374] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Electrochemical immunosensors offer much in the potential translation of a lab based sensing capability to a useful "real world" platform. In previous work we have introduced an impedance-derived electrochemical capacitance spectroscopic analysis as supportive of a reagentless means of reporting on analyte target capture at suitably prepared mixed-component redox-active, antibody-modified interfaces. Herein we directly integrate receptive aptamers into a redox charging peptide support in enabling a label-free low picomolar analytical assay for C-reactive protein with a sensitivity that significantly exceeds that attainable with an analogous antibody interface.
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Affiliation(s)
- Julia Piccoli
- Institute of Chemistry , São Paulo State University (UNESP) , 14800-900 , Araraquara , São Paulo , Brazil
| | - Robert Hein
- Department of Chemistry , University of Oxford , South Parks Road , Oxford OX1 3QZ , U.K
| | - Afaf H El-Sagheer
- Department of Chemistry , University of Oxford , South Parks Road , Oxford OX1 3QZ , U.K.,Chemistry Branch, Department of Science and Mathematics, Faculty of Petroleum and Mining Engineering , Suez University , Suez 43721 , Egypt
| | - Tom Brown
- Department of Chemistry , University of Oxford , South Parks Road , Oxford OX1 3QZ , U.K
| | - Eduardo M Cilli
- Institute of Chemistry , São Paulo State University (UNESP) , 14800-900 , Araraquara , São Paulo , Brazil
| | - Paulo R Bueno
- Institute of Chemistry , São Paulo State University (UNESP) , 14800-900 , Araraquara , São Paulo , Brazil
| | - Jason J Davis
- Department of Chemistry , University of Oxford , South Parks Road , Oxford OX1 3QZ , U.K
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12
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Caruso M, Gatto E, Palleschi A, Morales P, Scarselli M, Casaluci S, Quatela A, Di Carlo A, Venanzi M. A bioinspired dye sensitized solar cell based on a rhodamine-functionalized peptide immobilized on nanocrystalline TiO 2. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2017.07.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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13
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Venanzi M, Gatto E, Formaggio F, Toniolo C. The importance of being Aib. Aggregation and self-assembly studies on conformationally constrained oligopeptides. J Pept Sci 2017; 23:104-116. [DOI: 10.1002/psc.2956] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 11/30/2016] [Accepted: 12/01/2016] [Indexed: 12/23/2022]
Affiliation(s)
- Mariano Venanzi
- Department of Chemical Sciences and Technologies and Centre for Nanoscience, Nanotechnology and Advanced Instrumentation; University of Rome ‘Tor Vergata’; 00133 Rome Italy
| | - Emanuela Gatto
- Department of Chemical Sciences and Technologies and Centre for Nanoscience, Nanotechnology and Advanced Instrumentation; University of Rome ‘Tor Vergata’; 00133 Rome Italy
| | - Fernando Formaggio
- ICB, Padova Unit, CNR, Department of Chemistry; University of Padova; 35131 Padova Italy
| | - Claudio Toniolo
- ICB, Padova Unit, CNR, Department of Chemistry; University of Padova; 35131 Padova Italy
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14
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Gobbo P, Antonello S, Guryanov I, Polo F, Soldà A, Zen F, Maran F. Dipole Moment Effect on the Electrochemical Desorption of Self-Assembled Monolayers of 310-Helicogenic Peptides on Gold. ChemElectroChem 2016. [DOI: 10.1002/celc.201600573] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Pierangelo Gobbo
- Department of Chemistry; University of Padova; Via Marzolo 1 35131 Padova Italy
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | - Sabrina Antonello
- Department of Chemistry; University of Padova; Via Marzolo 1 35131 Padova Italy
| | - Ivan Guryanov
- Department of Chemistry; University of Padova; Via Marzolo 1 35131 Padova Italy
- Institute of Chemistry; St. Petersburg State University, 26 Universitetskij Pr.; 198504 Saint-Petersburg Russia
| | - Federico Polo
- Department of Chemistry; University of Padova; Via Marzolo 1 35131 Padova Italy
- National Cancer Institute-Centro di Riferimento Oncologico; Via Franco Gallini 2 33081 Aviano Italy
| | - Alice Soldà
- Department of Chemistry; University of Padova; Via Marzolo 1 35131 Padova Italy
- Department of Chemistry; University of Bologna; Via Selmi 2 40126 Bologna Italy
| | - Federico Zen
- Department of Chemistry; University of Padova; Via Marzolo 1 35131 Padova Italy
- School of Chemistry; Trinity College Dublin, College Green; Dublin 2 Ireland
| | - Flavio Maran
- Department of Chemistry; University of Padova; Via Marzolo 1 35131 Padova Italy
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15
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Yu J, Horsley JR, Abell AD. Turning electron transfer ‘on-off’ in peptides through side-bridge gating. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.05.067] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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16
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Piccoli JP, Santos A, Santos-Filho NA, Lorenzón EN, Cilli EM, Bueno PR. The self-assembly of redox active peptides: Synthesis and electrochemical capacitive behavior. Biopolymers 2016; 106:357-67. [DOI: 10.1002/bip.22815] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 12/16/2015] [Accepted: 01/14/2016] [Indexed: 01/18/2023]
Affiliation(s)
- Julia P. Piccoli
- Department of Biochemistry and Technological Chemistry; , Institute of Chemistry, UNESP-Univ Estadual Paulista; São Paulo Brazil
| | - Adriano Santos
- Department of Physical Chemistry; Nanobionics Research Group, Institute of Chemistry, UNESP-Univ Estadual Paulista; São Paulo Brazil
| | - Norival A. Santos-Filho
- Department of Biochemistry and Technological Chemistry; , Institute of Chemistry, UNESP-Univ Estadual Paulista; São Paulo Brazil
| | - Esteban N. Lorenzón
- Department of Biochemistry and Technological Chemistry; , Institute of Chemistry, UNESP-Univ Estadual Paulista; São Paulo Brazil
| | - Eduardo M. Cilli
- Department of Biochemistry and Technological Chemistry; , Institute of Chemistry, UNESP-Univ Estadual Paulista; São Paulo Brazil
| | - Paulo R. Bueno
- Department of Physical Chemistry; Nanobionics Research Group, Institute of Chemistry, UNESP-Univ Estadual Paulista; São Paulo Brazil
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17
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Longo E, Wright K, Caruso M, Gatto E, Palleschi A, Scarselli M, De Crescenzi M, Crisma M, Formaggio F, Toniolo C, Venanzi M. Peptide flatlandia: a new-concept peptide for positioning of electroactive probes in proximity to a metal surface. NANOSCALE 2015; 7:15495-15506. [PMID: 26274368 DOI: 10.1039/c5nr03549j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A helical hexapeptide was designed to link in a rigid parallel orientation to a gold surface. The peptide sequence of the newly synthesized compound is characterized by the presence of two 4-amino-1,2-dithiolane-4-carboxylic acid (Adt) residues (positions 1 and 4) to promote a bidentate interaction with the gold surface, two L-Ala residues (positions 2 and 5) and two-aminoisobutyric acid (Aib) residues (positions 3 and 6) to favor a high population of the 310-helix conformation. Furthermore, a ferrocenoyl (Fc) probe was inserted at the N-terminus to investigate the electronic conduction properties of the peptide. X-Ray photoelectron spectroscopy and scanning tunneling microscopy techniques were used to characterize the binding of the peptide to the gold surface and the morphology of the peptide layer, respectively. Several electrochemical (cyclic voltammetry, chronoamperometry, square wave voltammetry) techniques were applied to analyze the electrochemical activity of the Fc probe, along with the influence of the peptide 3D-structure and the peptide layer morphology on electron transfer processes.
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Affiliation(s)
- Edoardo Longo
- ICB, Padova Unit, CNR, Department of Chemistry, University of Padova, 35131 Padova, Italy
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Santos A, Piccoli JP, Santos-Filho NA, Cilli EM, Bueno PR. Redox-tagged peptide for capacitive diagnostic assays. Biosens Bioelectron 2015; 68:281-287. [DOI: 10.1016/j.bios.2014.12.059] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2014] [Revised: 12/29/2014] [Accepted: 12/30/2014] [Indexed: 11/16/2022]
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Ariga K, Yamauchi Y, Rydzek G, Ji Q, Yonamine Y, Wu KCW, Hill JP. Layer-by-layer Nanoarchitectonics: Invention, Innovation, and Evolution. CHEM LETT 2014. [DOI: 10.1246/cl.130987] [Citation(s) in RCA: 763] [Impact Index Per Article: 76.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Katsuhiko Ariga
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS)
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST)
| | - Yusuke Yamauchi
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS)
- Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST)
- Faculty of Science and Engineering, Waseda University
| | - Gaulthier Rydzek
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS)
| | - Qingmin Ji
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS)
| | - Yusuke Yonamine
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS)
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST)
| | - Kevin C.-W. Wu
- Department of Chemical Engineering, National Taiwan University
| | - Jonathan P. Hill
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS)
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST)
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Gatto E, Quatela A, Caruso M, Tagliaferro R, De Zotti M, Formaggio F, Toniolo C, Di Carlo A, Venanzi M. Mimicking Nature: A Novel Peptide-based Bio-inspired Approach for Solar Energy Conversion. Chemphyschem 2013; 15:64-8. [DOI: 10.1002/cphc.201300901] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Indexed: 11/08/2022]
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