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Marongiu M, Ha T, Gil-Guerrero S, Garg K, Mandado M, Melle-Franco M, Diez-Perez I, Mateo-Alonso A. Molecular Graphene Nanoribbon Junctions. J Am Chem Soc 2024; 146:3963-3973. [PMID: 38305745 PMCID: PMC10870704 DOI: 10.1021/jacs.3c11340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 12/20/2023] [Accepted: 01/12/2024] [Indexed: 02/03/2024]
Abstract
One of the challenges for the realization of molecular electronics is the design of nanoscale molecular wires displaying long-range charge transport. Graphene nanoribbons are an attractive platform for the development of molecular wires with long-range conductance owing to their unique electrical properties. Despite their potential, the charge transport properties of single nanoribbons remain underexplored. Herein, we report a synthetic approach to prepare N-doped pyrene-pyrazinoquinoxaline molecular graphene nanoribbons terminated with diamino anchoring groups at each end. These terminal groups allow for the formation of stable molecular graphene nanoribbon junctions between two metal electrodes that were investigated by scanning tunneling microscope-based break-junction measurements. The experimental and computational results provide evidence of long-range tunneling charge transport in these systems characterized by a shallow conductance length dependence and electron tunneling through >6 nm molecular backbone.
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Affiliation(s)
- Mauro Marongiu
- POLYMAT, University of the Basque Country UPV/EHU, Avenida de Tolosa 72, 20018 Donostia-San Sebastian, Spain
| | - Tracy Ha
- Department
of Chemistry, Faculty of Natural & Mathematical Sciences, King’s College London, Britannia House, 7 Trinity Street, SE1 1DB London, United Kingdom
| | - Sara Gil-Guerrero
- CICECO—Aveiro
Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Kavita Garg
- Department
of Chemistry, Faculty of Natural & Mathematical Sciences, King’s College London, Britannia House, 7 Trinity Street, SE1 1DB London, United Kingdom
| | - Marcos Mandado
- Department
of Physical Chemistry, University of Vigo, Lagoas-Marcosende s/n, 36310 Vigo, Spain
| | - Manuel Melle-Franco
- CICECO—Aveiro
Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Ismael Diez-Perez
- Department
of Chemistry, Faculty of Natural & Mathematical Sciences, King’s College London, Britannia House, 7 Trinity Street, SE1 1DB London, United Kingdom
| | - Aurelio Mateo-Alonso
- POLYMAT, University of the Basque Country UPV/EHU, Avenida de Tolosa 72, 20018 Donostia-San Sebastian, Spain
- Ikerbasque, Basque
Foundation for Science, 48009 Bilbao, Spain
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2
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Song J, Li Y, Tang H, Qiu C, Lei L, Wang M, Xu H. Application potential of Vaccinium ashei R. for cadmium migration retention in the mining area soil. CHEMOSPHERE 2023; 324:138346. [PMID: 36893865 DOI: 10.1016/j.chemosphere.2023.138346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/28/2023] [Accepted: 03/07/2023] [Indexed: 06/18/2023]
Abstract
Despite numerous reports on phytoremediation of heavy metals contaminated soil, there are few reports on plant retention of heavy metals in the mining area slope. This study was the first of its kind to explore the cadmium (Cd) retention capacity of the blueberry (Vaccinium ashei Reade). Firstly, we investigated the stress response of blueberry to different soil Cd concentrations (1, 5, 10, 15, 20 mg/kg) to assess its potential for phytoremediation by pot experiments. The results showed that the blueberry biomass exposed to 10 and 15 mg/kg Cd was significantly increased compared with the control (1 mg/kg Cd); the blueberry crown increased by 0.40% and 0.34% in 10 and 15 mg/kg Cd-contaminated soil, respectively, compared with control; the blueberry heigh did not even change significantly in each treatment group; the total chlorophyll content, peroxidase and catalase activity of blueberry were enhanced in 5-20 mg/kg Cd treatments. Furthermore, the Cd contents of blueberry in the root, stem and leaf increased significantly as the Cd concentration of soil increased. We found that more Cd accumulated in blueberry root: the bioaccumulation concentration factor was root > stem > leaf for all groups; the residual-Cd (Cd speciation) in soil increased by 3.83%-411.11% in blueberry-planted versus unplanted groups; blueberry improved the Cd-contaminated soil micro-ecological environment including soil organic matter, available K and P, as well as microbial communities. Then, to investigate the effect of blueberry cultivation on Cd migration, we developed a bioretention model and revealed that soil Cd transport along the model slope was significantly weakened by blueberry cultivation, especially at the bottom of the model. In a word, this research suggests a promising method for the phytoremediation of Cd-contaminated soil and the reduction of Cd migration in mining areas.
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Affiliation(s)
- Jianjincang Song
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, PR China
| | - Yongyun Li
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, PR China
| | - Hao Tang
- Ecological Protection and Development Research Institute of Aba Tibetan and Qiang Autonomous Prefecture, Aba, 623000, Sichuan, PR China
| | - Chengshu Qiu
- College of Chemistry and Life Science, Chengdu Normal University, Chengdu, 61130, Sichuan, PR China
| | - Ling Lei
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, PR China
| | - Maolin Wang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, PR China
| | - Heng Xu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, PR China.
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3
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Atkinson JT, Chavez MS, Niman CM, El-Naggar MY. Living electronics: A catalogue of engineered living electronic components. Microb Biotechnol 2023; 16:507-533. [PMID: 36519191 PMCID: PMC9948233 DOI: 10.1111/1751-7915.14171] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 09/26/2022] [Accepted: 11/01/2022] [Indexed: 12/23/2022] Open
Abstract
Biology leverages a range of electrical phenomena to extract and store energy, control molecular reactions and enable multicellular communication. Microbes, in particular, have evolved genetically encoded machinery enabling them to utilize the abundant redox-active molecules and minerals available on Earth, which in turn drive global-scale biogeochemical cycles. Recently, the microbial machinery enabling these redox reactions have been leveraged for interfacing cells and biomolecules with electrical circuits for biotechnological applications. Synthetic biology is allowing for the use of these machinery as components of engineered living materials with tuneable electrical properties. Herein, we review the state of such living electronic components including wires, capacitors, transistors, diodes, optoelectronic components, spin filters, sensors, logic processors, bioactuators, information storage media and methods for assembling these components into living electronic circuits.
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Affiliation(s)
- Joshua T Atkinson
- Department of Physics and Astronomy, University of Southern California, Los Angeles, California, USA
| | - Marko S Chavez
- Department of Physics and Astronomy, University of Southern California, Los Angeles, California, USA
| | - Christina M Niman
- Department of Physics and Astronomy, University of Southern California, Los Angeles, California, USA
| | - Mohamed Y El-Naggar
- Department of Physics and Astronomy, University of Southern California, Los Angeles, California, USA.,Department of Biological Sciences, University of Southern California, Los Angeles, California, USA.,Department of Chemistry, University of Southern California, Los Angeles, California, USA
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4
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Lee S, M Silva S, Caballero Aguilar LM, Eom T, Moulton SE, Shim BS. Biodegradable bioelectronics for biomedical applications. J Mater Chem B 2022; 10:8575-8595. [PMID: 36214325 DOI: 10.1039/d2tb01475k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Biodegradable polymers have been widely used in tissue engineering with the potential to be replaced by regenerative tissue. While conventional bionic interfaces are designed to be implanted in living tissue and organs permanently, biocompatible and biodegradable electronic materials are now progressing a paradigm shift towards transient and regenerative bionic engineering. For example, biodegradable bioelectronics can monitor physiologies in a body, transiently rehabilitate disease symptoms, and seamlessly form regenerative interfaces from synthetic electronic devices to tissues by reducing inflammatory foreign-body responses. Conventional electronic materials have not readily been considered biodegradable. However, several strategies have been adopted for designing electroactive and biodegradable materials systems: (1) conductive materials blended with biodegradable components, (2) molecularly engineered conjugated polymers with biodegradable moieties, (3) naturally derived conjugated biopolymers, and (4) aqueously dissolvable metals with encapsulating layers. In this review, we endeavor to present the technical bridges from electrically active and biodegradable material systems to edible and biodegradable electronics as well as transient bioelectronics with pre-clinical bio-instrumental applications, including biodegradable sensors, neural and tissue engineering, and intelligent drug delivery systems.
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Affiliation(s)
- Seunghyeon Lee
- Program in Biomedical Science & Engineering, Inha University, 100, Inha-ro, Michuhol-gu, Incheon, Republic of Korea. .,Department of Chemical Engineering, Inha University, 100, Inha-ro, Michuhol-gu, Incheon, Republic of Korea
| | - Saimon M Silva
- ARC Centre of Excellence for Electromaterials Science, School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Melbourne, Victoria 3122, Australia.,Iverson Health Innovation Research Institute, Swinburne University of Technology, Melbourne, Victoria 3122, Australia. .,The Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Melbourne, Victoria 3065, Australia
| | - Lilith M Caballero Aguilar
- ARC Centre of Excellence for Electromaterials Science, School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Melbourne, Victoria 3122, Australia.,Iverson Health Innovation Research Institute, Swinburne University of Technology, Melbourne, Victoria 3122, Australia. .,The Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Melbourne, Victoria 3065, Australia
| | - Taesik Eom
- Program in Biomedical Science & Engineering, Inha University, 100, Inha-ro, Michuhol-gu, Incheon, Republic of Korea. .,Department of Chemical Engineering, Inha University, 100, Inha-ro, Michuhol-gu, Incheon, Republic of Korea
| | - Simon E Moulton
- ARC Centre of Excellence for Electromaterials Science, School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Melbourne, Victoria 3122, Australia.,Iverson Health Innovation Research Institute, Swinburne University of Technology, Melbourne, Victoria 3122, Australia. .,The Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Melbourne, Victoria 3065, Australia
| | - Bong Sup Shim
- Program in Biomedical Science & Engineering, Inha University, 100, Inha-ro, Michuhol-gu, Incheon, Republic of Korea. .,Department of Chemical Engineering, Inha University, 100, Inha-ro, Michuhol-gu, Incheon, Republic of Korea
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5
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Tao S, Zhang Q, Vezzoli A, Zhao C, Zhao C, Higgins SJ, Smogunov A, Dappe YJ, Nichols RJ, Yang L. Electrochemical gating for single-molecule electronics with hybrid Au|graphene contacts. Phys Chem Chem Phys 2022; 24:6836-6844. [PMID: 35244656 DOI: 10.1039/d1cp05486d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The single-molecular conductance of a redox active viologen molecular bridge between Au|graphene electrodes has been studied in an electrochemical gating configuration in an ionic liquid medium. A clear "off-on-off" conductance switching behaviour has been achieved through gating of the redox state when the electrochemical potential is swept. The Au|viologen|graphene junctions show single-molecule conductance maxima centred close to the equilibrium redox potentials for both reduction steps. The peak conductance of Au|viologen|graphene junctions during the first reduction is significantly higher than that of previously measured Au|viologen|Au junctions. This shows that even though the central viologen moiety is not directly linked to the enclosing electrodes, substituting one gold contact for a graphene one nevertheless has a significant impact on junction conductance values. The experimental data was compared against two theoretical models, namely a phase coherent tunnelling and an incoherent "hopping" model. The former is a simple gating monoelectronic model within density functional theory (DFT) which discloses the charge state evolution of the molecule with electrode potential. The latter model is the collective Kuznetsov Ulstrup model for 2-step sequential charge transport through the redox centre in the adiabatic limit. The comparison of both models to the experimental data is discussed for the first time. This work opens perspectives for graphene-based molecular transistors with more effective gating and fundamental understanding of electrochemical electron transfer at the single molecular level.
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Affiliation(s)
- Shuhui Tao
- Department of Chemistry, Xi'an-Jiaotong Liverpool University, Suzhou, 215123, China. .,Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, UK
| | - Qian Zhang
- Department of Chemistry, Xi'an-Jiaotong Liverpool University, Suzhou, 215123, China. .,Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, UK
| | - Andrea Vezzoli
- Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, UK
| | - Cezhou Zhao
- Department of Electrical and Electronic Engineering, Xi'an-Jiaotong Liverpool University, Suzhou, 215123, China
| | - Chun Zhao
- Department of Electrical and Electronic Engineering, Xi'an-Jiaotong Liverpool University, Suzhou, 215123, China
| | - Simon J Higgins
- Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, UK
| | - Alexander Smogunov
- SPEC, CEA, CNRS, Université Paris-Saclay, CEA Saclay 91191 Gif-sur-Yvette Cedex, France
| | - Yannick J Dappe
- SPEC, CEA, CNRS, Université Paris-Saclay, CEA Saclay 91191 Gif-sur-Yvette Cedex, France
| | - Richard J Nichols
- Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, UK
| | - Li Yang
- Department of Chemistry, Xi'an-Jiaotong Liverpool University, Suzhou, 215123, China. .,Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, UK
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6
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STM studies of electron transfer through single molecules at electrode-electrolyte interfaces. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Lee HJ, Cho SJ, Kang H, He X, Yoon HJ. Achieving Ultralow, Zero, and Inverted Tunneling Attenuation Coefficients in Molecular Wires with Extended Conjugation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2005711. [PMID: 33543557 DOI: 10.1002/smll.202005711] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/22/2020] [Indexed: 06/12/2023]
Abstract
Molecular tunnel junctions are organic devices miniaturized to the molecular scale. They serve as a versatile toolbox that can systematically examine charge transport behaviors at the atomic level. The electrical conductance of the molecular wire that bridges the two electrodes in a junction is significantly influenced by its chemical structure, and an intrinsically poor conductance is a major barrier for practical applications toward integrating individual molecules into electronic circuitry. Therefore, highly conjugated molecular wires are attractive as active components for the next-generation electronic devices, owing to the narrow highest occupied molecular orbital-lowest occupied molecular orbital gaps provided by their extended π-building blocks. This article aims to highlight the significance of highly conductive molecular wires in molecular electronics, the structures of which are inspired from conductive organic polymers, and presents a body of discussion on molecular wires exhibiting ultralow, zero, or inverted attenuation of tunneling probability at different lengths, along with future directions.
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Affiliation(s)
- Hyun Ju Lee
- Department of Chemistry, Korea University, Seoul, 02841, South Korea
| | - Soo Jin Cho
- Department of Chemistry, Korea University, Seoul, 02841, South Korea
| | - Hungu Kang
- Department of Chemistry, Korea University, Seoul, 02841, South Korea
| | - Xin He
- Department of Chemistry, Korea University, Seoul, 02841, South Korea
| | - Hyo Jae Yoon
- Department of Chemistry, Korea University, Seoul, 02841, South Korea
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8
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Xu W, Leary E, Hou S, Sangtarash S, González MT, Rubio‐Bollinger G, Wu Q, Sadeghi H, Tejerina L, Christensen KE, Agraït N, Higgins SJ, Lambert CJ, Nichols RJ, Anderson HL. Unusual Length Dependence of the Conductance in Cumulene Molecular Wires. Angew Chem Int Ed Engl 2019; 58:8378-8382. [PMID: 31026371 PMCID: PMC6563095 DOI: 10.1002/anie.201901228] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 04/22/2019] [Indexed: 01/29/2023]
Abstract
Cumulenes are sometimes described as "metallic" because an infinitely long cumulene would have the band structure of a metal. Herein, we report the single-molecule conductance of a series of cumulenes and cumulene analogues, where the number of consecutive C=C bonds in the core is n=1, 2, 3, and 5. The [n]cumulenes with n=3 and 5 have almost the same conductance, and they are both more conductive than the alkene (n=1). This is remarkable because molecular conductance normally falls exponentially with length. The conductance of the allene (n=2) is much lower, because of its twisted geometry. Computational simulations predict a similar trend to the experimental results and indicate that the low conductance of the allene is a general feature of [n]cumulenes where n is even. The lack of length dependence in the conductance of [3] and [5]cumulenes is attributed to the strong decrease in the HOMO-LUMO gap with increasing length.
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Affiliation(s)
- Wenjun Xu
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryOxfordOX1 3TAUK
| | - Edmund Leary
- Department of ChemistryDonnan and Robert Robinson LaboratoriesUniversity of LiverpoolLiverpoolL69 7ZDUK
- Surface Science Research CentreUniversity of LiverpoolOxford StreetLiverpoolL69 3BXUK
| | - Songjun Hou
- Department of PhysicsLancaster UniversityLancasterLA1 4YWUK
| | | | - M. Teresa González
- Instituto Madrileño de Estudios Avanzados (IMDEA)Calle Faraday 9, Campus Universitario de Cantoblanco28049MadridSpain
| | - Gabino Rubio‐Bollinger
- Departamento de Física de la Materia CondensadaIFIMAC and Instituto “Nicolás Cabrera”Universidad Autónoma de Madrid28049MadridSpain
| | - Qingqing Wu
- Department of PhysicsLancaster UniversityLancasterLA1 4YWUK
| | - Hatef Sadeghi
- Department of PhysicsLancaster UniversityLancasterLA1 4YWUK
| | - Lara Tejerina
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryOxfordOX1 3TAUK
| | | | - Nicolás Agraït
- Instituto Madrileño de Estudios Avanzados (IMDEA)Calle Faraday 9, Campus Universitario de Cantoblanco28049MadridSpain
- Departamento de Física de la Materia CondensadaIFIMAC and Instituto “Nicolás Cabrera”Universidad Autónoma de Madrid28049MadridSpain
| | - Simon J. Higgins
- Department of ChemistryDonnan and Robert Robinson LaboratoriesUniversity of LiverpoolLiverpoolL69 7ZDUK
| | | | - Richard J. Nichols
- Department of ChemistryDonnan and Robert Robinson LaboratoriesUniversity of LiverpoolLiverpoolL69 7ZDUK
- Surface Science Research CentreUniversity of LiverpoolOxford StreetLiverpoolL69 3BXUK
| | - Harry L. Anderson
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryOxfordOX1 3TAUK
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9
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Xu W, Leary E, Hou S, Sangtarash S, González MT, Rubio‐Bollinger G, Wu Q, Sadeghi H, Tejerina L, Christensen KE, Agraït N, Higgins SJ, Lambert CJ, Nichols RJ, Anderson HL. Unusual Length Dependence of the Conductance in Cumulene Molecular Wires. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901228] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Wenjun Xu
- Department of ChemistryUniversity of OxfordChemistry Research Laboratory Oxford OX1 3TA UK
| | - Edmund Leary
- Department of ChemistryDonnan and Robert Robinson LaboratoriesUniversity of Liverpool Liverpool L69 7ZD UK
- Surface Science Research CentreUniversity of Liverpool Oxford Street Liverpool L69 3BX UK
| | - Songjun Hou
- Department of PhysicsLancaster University Lancaster LA1 4YW UK
| | - Sara Sangtarash
- Department of PhysicsLancaster University Lancaster LA1 4YW UK
| | - M. Teresa González
- Instituto Madrileño de Estudios Avanzados (IMDEA) Calle Faraday 9, Campus Universitario de Cantoblanco 28049 Madrid Spain
| | - Gabino Rubio‐Bollinger
- Departamento de Física de la Materia CondensadaIFIMAC and Instituto “Nicolás Cabrera”Universidad Autónoma de Madrid 28049 Madrid Spain
| | - Qingqing Wu
- Department of PhysicsLancaster University Lancaster LA1 4YW UK
| | - Hatef Sadeghi
- Department of PhysicsLancaster University Lancaster LA1 4YW UK
| | - Lara Tejerina
- Department of ChemistryUniversity of OxfordChemistry Research Laboratory Oxford OX1 3TA UK
| | - Kirsten E. Christensen
- Department of ChemistryUniversity of OxfordChemistry Research Laboratory Oxford OX1 3TA UK
| | - Nicolás Agraït
- Instituto Madrileño de Estudios Avanzados (IMDEA) Calle Faraday 9, Campus Universitario de Cantoblanco 28049 Madrid Spain
- Departamento de Física de la Materia CondensadaIFIMAC and Instituto “Nicolás Cabrera”Universidad Autónoma de Madrid 28049 Madrid Spain
| | - Simon J. Higgins
- Department of ChemistryDonnan and Robert Robinson LaboratoriesUniversity of Liverpool Liverpool L69 7ZD UK
| | | | - Richard J. Nichols
- Department of ChemistryDonnan and Robert Robinson LaboratoriesUniversity of Liverpool Liverpool L69 7ZD UK
- Surface Science Research CentreUniversity of Liverpool Oxford Street Liverpool L69 3BX UK
| | - Harry L. Anderson
- Department of ChemistryUniversity of OxfordChemistry Research Laboratory Oxford OX1 3TA UK
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10
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Gunasekaran S, Hernangómez-Pérez D, Davydenko I, Marder S, Evers F, Venkataraman L. Near Length-Independent Conductance in Polymethine Molecular Wires. NANO LETTERS 2018; 18:6387-6391. [PMID: 30187756 DOI: 10.1021/acs.nanolett.8b02743] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Polymethine dyes are linear π-conjugated compounds with an odd number of carbons that display a much greater delocalization in comparison to polyenes that have an even number of carbon atoms in their main chain. Herein, we perform scanning tunneling microscope based break-junction measurements on a series of three cyanine dyes of increasing length. We demonstrate, at the single molecule level, that these short chain polymethine systems exhibit a substantially smaller decay in conductance with length (attenuation factor β = 0.04 Å-1) compared to traditional polyenes (β ≈ 0.2 Å-1). Furthermore, we show that by changing solvent we are able to shift the β value, demonstrating a remarkable negative β value, with conductance increasing with molecular length. First principle calculations provide support for the experimentally observed near-uniform length dependent conductance and further suggest that the variations in β with solvent are due to solvent-induced changes in the alignment of the frontier molecular orbitals relative to the Fermi energy of the leads. A simplified Hückel model suggests that the smaller decay in conductance correlates with the smaller degree of bond order alternation present in polymethine compounds compared to polyenes. These findings may enable the design of molecular wires without a length-dependent decay for efficient electron transport at the nanoscale.
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Affiliation(s)
- Suman Gunasekaran
- Department of Chemistry , Columbia University , New York , New York 10027 , United States
| | | | - Iryna Davydenko
- School of Chemistry and Biochemistry and Center for Organic Photonics and Electronics , Georgia Institute of Technology , Atlanta , Georgia 30332-0400 , United States
| | - Seth Marder
- School of Chemistry and Biochemistry and Center for Organic Photonics and Electronics , Georgia Institute of Technology , Atlanta , Georgia 30332-0400 , United States
| | - Ferdinand Evers
- Institute of Theoretical Physics , University of Regensburg , 93040 Regensburg , Germany
| | - Latha Venkataraman
- Department of Chemistry , Columbia University , New York , New York 10027 , United States
- Department of Applied Physics and Applied Mathematics , Columbia University , New York , New York 10027 , United States
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11
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Méndez-Ardoy A, Markandeya N, Li X, Tsai YT, Pecastaings G, Buffeteau T, Maurizot V, Muccioli L, Castet F, Huc I, Bassani DM. Multi-dimensional charge transport in supramolecular helical foldamer assemblies. Chem Sci 2017; 8:7251-7257. [PMID: 29147547 PMCID: PMC5633016 DOI: 10.1039/c7sc03341a] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 09/04/2017] [Indexed: 11/21/2022] Open
Abstract
Aromatic foldamers are bioinspired architectures whose potential use in materials remains largely unexplored. Here we report our investigation of vertical and horizontal charge transport over long distances in helical oligo-quinolinecarboxamide foldamers organized as single monolayers on Au or SiO2. Conductive atomic force microscopy showed that vertical conductivity is efficient and that it displays a low attenuation with foldamer length (0.06 Å-1). In contrast, horizontal charge transport is found to be negligible, demonstrating the strong anisotropy of foldamer monolayers. Kinetic Monte Carlo calculations were used to probe the mechanism of charge transport in these helical molecules and revealed the presence of intramolecular through-space charge transfer integrals approaching those found in pentacene and rubrene crystals, in line with experimental results. Kinetic Monte Carlo simulations of charge hopping along the foldamer chain evidence the strong contribution of multiple 1D and 3D pathways in these architectures and their dependence on conformational order. These findings show that helical foldamer architectures may provide a route for achieving charge transport over long distance by combining multiple charge transport pathways.
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Affiliation(s)
- Alejandro Méndez-Ardoy
- Univ. Bordeaux CNRS UMR 5255 ISM , 351, Cours de la Libération , 33405 Talence , France .
| | - Nagula Markandeya
- Univ. Bordeaux CNRS UMR 5248 CBMN , 2 rue Escarpit , 33600 Pessac , France .
| | - Xuesong Li
- Univ. Bordeaux CNRS UMR 5248 CBMN , 2 rue Escarpit , 33600 Pessac , France .
| | - Yu-Tang Tsai
- Univ. Bordeaux CNRS UMR 5255 ISM , 351, Cours de la Libération , 33405 Talence , France .
| | - Gilles Pecastaings
- Inst. Polytechnique de Bordeaux CNRS UMR 5629 LCPO , 16, Av. Pey-Berland , 33600 Pessac , France
| | - Thierry Buffeteau
- Univ. Bordeaux CNRS UMR 5255 ISM , 351, Cours de la Libération , 33405 Talence , France .
| | - Victor Maurizot
- Univ. Bordeaux CNRS UMR 5248 CBMN , 2 rue Escarpit , 33600 Pessac , France .
| | - Luca Muccioli
- Univ. Bordeaux CNRS UMR 5255 ISM , 351, Cours de la Libération , 33405 Talence , France .
| | - Frédéric Castet
- Univ. Bordeaux CNRS UMR 5255 ISM , 351, Cours de la Libération , 33405 Talence , France .
| | - Ivan Huc
- Univ. Bordeaux CNRS UMR 5248 CBMN , 2 rue Escarpit , 33600 Pessac , France .
| | - Dario M Bassani
- Univ. Bordeaux CNRS UMR 5255 ISM , 351, Cours de la Libération , 33405 Talence , France .
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13
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Ozawa H, Baghernejad M, Al-Owaedi OA, Kaliginedi V, Nagashima T, Ferrer J, Wandlowski T, García-Suárez VM, Broekmann P, Lambert CJ, Haga MA. Synthesis and Single-Molecule Conductance Study of Redox-Active Ruthenium Complexes with Pyridyl and Dihydrobenzo[b]thiophene Anchoring Groups. Chemistry 2016; 22:12732-40. [PMID: 27472889 DOI: 10.1002/chem.201600616] [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: 02/09/2016] [Indexed: 11/12/2022]
Abstract
The ancillary ligands 4'-(4-pyridyl)-2,2':6',2''-terpyridine and 4'-(2,3-dihydrobenzo[b]thiophene)-2,2'-6',2"-terpyridine were used to synthesize two series of mono- and dinuclear ruthenium complexes differing in their lengths and anchoring groups. The electrochemical and single-molecular conductance properties of these two series of ruthenium complexes were studied experimentally by means of cyclic voltammetry and the scanning tunneling microscopy-break junction technique (STM-BJ) and theoretically by means of density functional theory (DFT). Cyclic voltammetry data showed clear redox peaks corresponding to both the metal- and ligand-related redox reactions. Single-molecular conductance demonstrated an exponential decay of the molecular conductance with the increase in molecular length for both the series of ruthenium complexes, with decay constants of βPY =2.07±0.1 nm(-1) and βBT =2.16±0.1 nm(-1) , respectively. The contact resistance of complexes with 2,3-dihydrobenzo[b]thiophene (BT) anchoring groups is found to be smaller than the contact resistance of ruthenium complexes with pyridine (PY) anchors. DFT calculations support the experimental results and provided additional information on the electronic structure and charge transport properties in those metal|ruthenium complex|metal junctions.
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Affiliation(s)
- Hiroaki Ozawa
- Department of Applied Chemistry, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, 112-8551, Tokyo, Japan
| | - Masoud Baghernejad
- Department of Chemistry and Biochemistry, University of Bern, Freistrasse 3, 3012, Bern, Switzerland
| | - Oday A Al-Owaedi
- Department of Physics, Lancaster University, Lancaster, LA1 4YB, UK. .,Department of Laser Physics, Women Faculty of Science, Babylon University, Hillah, Iraq.
| | - Veerabhadrarao Kaliginedi
- Department of Chemistry and Biochemistry, University of Bern, Freistrasse 3, 3012, Bern, Switzerland.
| | - Takumi Nagashima
- Department of Applied Chemistry, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, 112-8551, Tokyo, Japan
| | - Jaime Ferrer
- Departamento de Física, Universidad de Oviedo and CINN, 33007, Oviedo, Spain
| | - Thomas Wandlowski
- Department of Chemistry and Biochemistry, University of Bern, Freistrasse 3, 3012, Bern, Switzerland
| | | | - Peter Broekmann
- Department of Chemistry and Biochemistry, University of Bern, Freistrasse 3, 3012, Bern, Switzerland
| | - Colin J Lambert
- Department of Physics, Lancaster University, Lancaster, LA1 4YB, UK
| | - Masa-Aki Haga
- Department of Applied Chemistry, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, 112-8551, Tokyo, Japan.
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14
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Xiang D, Wang X, Jia C, Lee T, Guo X. Molecular-Scale Electronics: From Concept to Function. Chem Rev 2016; 116:4318-440. [DOI: 10.1021/acs.chemrev.5b00680] [Citation(s) in RCA: 816] [Impact Index Per Article: 102.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Dong Xiang
- Beijing
National Laboratory for Molecular Sciences, State Key Laboratory for
Structural Chemistry of Unstable and Stable Species, College of Chemistry
and Molecular Engineering, Peking University, Beijing 100871, China
- Key
Laboratory of Optical Information Science and Technology, Institute
of Modern Optics, College of Electronic Information and Optical Engineering, Nankai University, Tianjin 300071, China
| | - Xiaolong Wang
- Beijing
National Laboratory for Molecular Sciences, State Key Laboratory for
Structural Chemistry of Unstable and Stable Species, College of Chemistry
and Molecular Engineering, Peking University, Beijing 100871, China
| | - Chuancheng Jia
- Beijing
National Laboratory for Molecular Sciences, State Key Laboratory for
Structural Chemistry of Unstable and Stable Species, College of Chemistry
and Molecular Engineering, Peking University, Beijing 100871, China
| | - Takhee Lee
- Department
of Physics and Astronomy, and Institute of Applied Physics, Seoul National University, Seoul 08826, Korea
| | - Xuefeng Guo
- Beijing
National Laboratory for Molecular Sciences, State Key Laboratory for
Structural Chemistry of Unstable and Stable Species, College of Chemistry
and Molecular Engineering, Peking University, Beijing 100871, China
- Department
of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China
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15
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Tsuji Y, Movassagh R, Datta S, Hoffmann R. Exponential Attenuation of Through-Bond Transmission in a Polyene: Theory and Potential Realizations. ACS NANO 2015; 9:11109-11120. [PMID: 26390251 DOI: 10.1021/acsnano.5b04615] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
An exponential falloff with separation of electron transfer and transport through molecular wires is observed and has attracted theoretical attention. In this study, the attenuation of transmission in linear and cyclic polyenes is related to bond alternation. The explicit form of the zeroth Green's function in a Hückel model for bond-alternated polyenes leads to an analytical expression of the conductance decay factor β. The β values calculated from our model (β(CN) values, per repeat unit of double and single bond) range from 0.28 to 0.37, based on carotenoid crystal structures. These theoretical β values are slightly smaller than experimental values. The difference can be assigned to the effect of anchoring groups, which are not included in our model. A local transmission analysis for cyclic polyenes, and for [14]annulene in particular, shows that bond alternation affects dramatically not only the falloff behavior but also the choice of a transmission pathway by electrons. Transmission follows a well-demarcated system of π bonds, even when there is a shorter-distance path with roughly the same kind of "electronic matter" intervening.
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Affiliation(s)
- Yuta Tsuji
- Department of Chemistry and Chemical Biology, Cornell University , Baker Laboratory, Ithaca, New York 14853, United States
| | - Ramis Movassagh
- Department of Mathematics, Massachusetts Institute of Technology , Building E18, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139-4307, United States
| | - Supriyo Datta
- School of Electrical and Computer Engineering, Purdue University , Electrical Engineering Building, 465 Northwestern Avenue, West Lafayette, Indiana 47907-2035, United States
| | - Roald Hoffmann
- Department of Chemistry and Chemical Biology, Cornell University , Baker Laboratory, Ithaca, New York 14853, United States
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16
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Osorio HM, Catarelli S, Cea P, Gluyas JBG, Hartl F, Higgins SJ, Leary E, Low PJ, Martín S, Nichols RJ, Tory J, Ulstrup J, Vezzoli A, Milan DC, Zeng Q. Electrochemical Single-Molecule Transistors with Optimized Gate Coupling. J Am Chem Soc 2015; 137:14319-28. [DOI: 10.1021/jacs.5b08431] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Henrry M. Osorio
- Departamento
de Química Física, Facultad de Ciencias, Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Samantha Catarelli
- Department
of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, United Kingdom
| | - Pilar Cea
- Departamento
de Química Física, Facultad de Ciencias, Universidad de Zaragoza, 50009 Zaragoza, Spain
- Instituto
de Nanociencia de Aragón (INA) and Laboratorio de microscopias
avanzadas (LMA), edificio i+d Campus Rio Ebro, Universidad de Zaragoza, C/Mariano Esquillor, s/n, 50018 Zaragoza, Spain
| | - Josef B. G. Gluyas
- School
of Chemistry and Biochemistry, University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia
| | - František Hartl
- Department
of Chemistry, University of Reading, Whiteknights, Reading, RG6 6AD, U.K
| | - Simon J. Higgins
- Department
of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, United Kingdom
| | - Edmund Leary
- Department
of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, United Kingdom
| | - Paul J. Low
- School
of Chemistry and Biochemistry, University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia
| | - Santiago Martín
- Departamento
de Química Física, Facultad de Ciencias, Universidad de Zaragoza, 50009 Zaragoza, Spain
- Instituto
de Ciencias de Materiales de Aragón (ICMA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Richard J. Nichols
- Department
of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, United Kingdom
| | - Joanne Tory
- Department
of Chemistry, University of Reading, Whiteknights, Reading, RG6 6AD, U.K
| | - Jens Ulstrup
- Department
of Chemistry and NanoDTU, Technical University of Denmark, DK2800 Kgs. Lyngby, Denmark
| | - Andrea Vezzoli
- Department
of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, United Kingdom
| | - David C. Milan
- Department
of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, United Kingdom
| | - Qiang Zeng
- Department
of Chemistry, University of Reading, Whiteknights, Reading, RG6 6AD, U.K
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17
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Bridge- and solvent-mediated intramolecular electronic communications in ubiquinone-based biomolecular wires. Sci Rep 2015; 5:10352. [PMID: 25996306 PMCID: PMC4440530 DOI: 10.1038/srep10352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 04/08/2015] [Indexed: 11/18/2022] Open
Abstract
Intramolecular electronic communications of molecular wires play a crucial role for
developing molecular devices. In the present work, we describe different degrees of
intramolecular electronic communications in the redox processes of three
ubiquinone-based biomolecular wires (Bis-CoQ0s) evaluated by
electrochemistry and Density Functional Theory (DFT) methods in different solvents.
We found that the bridges linkers have a significant effect on the electronic
communications between the two peripheral ubiquinone moieties and solvents effects
are limited and mostly depend on the nature of solvents. The DFT calculations for
the first time indicate the intensity of the electronic communications during the
redox processes rely on the molecular orbital elements VL for electron
transfer (half of the energy splitting of the LUMO and LUMO+1), which is could be
affected by the bridges linkers. The DFT calculations also demonstrates the effect
of solvents on the latter two-electron transfer of Bis-CoQ0s is more
significant than the former two electrons transfer as the observed electrochemical
behaviors of three Bis-CoQ0s. In addition, the electrochemistry and
theoretical calculations reveal the intramolecular electronic communications vary in
the four-electron redox processes of three Bis-CoQ0s.
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18
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Abstract
Carotenes are naturally abundant unsaturated hydrocarbon pigments, and their fascinating physical and chemical properties have been studied intensively not only for better understanding of the roles in biological processes but also for the use in artificial chemical systems. However, their metal-binding ability has been virtually unexplored. Here we report that β-carotene has the ability to assemble and align ten metal atoms to afford decanuclear homo- and heterometal chain complexes. The metallo–carotenoid framework shows reversible metalation–demetalation reactivity with multiple metals, which allows us to control the size of metal chains as well as the heterobimetallic composition and arrangement of the carotene-supported metal chains. Carotenes are naturally abundant, widely studied unsaturated hydrocarbon pigments but their metal-binding ability has been virtually unexplored. Here, the authors demonstrate that they can be used to reversibly assemble and align homo- and hetero-metallic decanuclear chain complexes.
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19
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Lechner BD, Ebert H, Prehm M, Werner S, Meister A, Hause G, Beerlink A, Saalwächter K, Bacia K, Tschierske C, Blume A. Temperature-dependent in-plane structure formation of an X-shaped bolapolyphile within lipid bilayers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:2839-2850. [PMID: 25695502 DOI: 10.1021/la504903d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Polyphilic compound B12 is an X-shaped molecule with a stiff aromatic core, flexible aliphatic side chains, and hydrophilic end groups. Forming a thermotropic triangular honeycomb phase in the bulk between 177 and 182 °C but no lyotropic phases, it is designed to fit into DPPC or DMPC lipid bilayers, in which it phase separates at room temperature, as observed in giant unilamellar vesicles (GUVs) by fluorescence microscopy. TEM investigations of bilayer aggregates support the incorporation of B12 into intact membranes. The temperature-dependent behavior of the mixed samples was followed by differential scanning calorimetry (DSC), FT-IR spectroscopy, fluorescence spectroscopy, and X-ray scattering. DSC results support in-membrane phase separation, where a reduced main transition and new B12-related transitions indicate the incorporation of lipids into the B12-rich phase. The phase separation was confirmed by X-ray scattering, where two different lamellar repeat distances are visible over a wide temperature range. Polarized ATR-FTIR and fluorescence anisotropy experiments support the transmembrane orientation of B12, and FT-IR spectra further prove a stepwise "melting" of the lipid chains. The data suggest that in the B12-rich domains the DPPC chains are still rigid and the B12 molecules interact with each other via π-π interactions. All results obtained at temperatures above 75 °C confirm the formation of a single, homogeneously mixed phase with freely mobile B12 molecules.
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Affiliation(s)
- Bob-Dan Lechner
- Institut für Chemie - Physikalische Chemie and ‡Institut für Chemie - Organische Chemie, Martin-Luther-Universität Halle-Wittenberg , D-06120 Halle (Saale), Germany
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20
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Dell EJ, Capozzi B, Xia J, Venkataraman L, Campos LM. Molecular length dictates the nature of charge carriers in single-molecule junctions of oxidized oligothiophenes. Nat Chem 2015; 7:209-14. [DOI: 10.1038/nchem.2160] [Citation(s) in RCA: 129] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Accepted: 12/12/2014] [Indexed: 12/22/2022]
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21
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Khoo KH, Chen Y, Li S, Quek SY. Length dependence of electron transport through molecular wires – a first principles perspective. Phys Chem Chem Phys 2015; 17:77-96. [DOI: 10.1039/c4cp05006a] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The length dependence of coherent electron transport through molecular wires is discussed in the context of a survey of state-of-the-art first principles calculation methods.
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Affiliation(s)
- Khoong Hong Khoo
- Department of Physics
- Faculty of Science
- National University of Singapore
- Singapore
- Centre for Advanced 2D Materials and Graphene Research Centre
| | - Yifeng Chen
- Department of Physics
- Faculty of Science
- National University of Singapore
- Singapore
- Centre for Advanced 2D Materials and Graphene Research Centre
| | - Suchun Li
- Department of Physics
- Faculty of Science
- National University of Singapore
- Singapore
- Institute of High Performance Computing
| | - Su Ying Quek
- Department of Physics
- Faculty of Science
- National University of Singapore
- Singapore
- Centre for Advanced 2D Materials and Graphene Research Centre
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22
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Amdursky N, Marchak D, Sepunaru L, Pecht I, Sheves M, Cahen D. Electronic transport via proteins. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:7142-61. [PMID: 25256438 DOI: 10.1002/adma.201402304] [Citation(s) in RCA: 130] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Revised: 08/07/2014] [Indexed: 05/25/2023]
Abstract
A central vision in molecular electronics is the creation of devices with functional molecular components that may provide unique properties. Proteins are attractive candidates for this purpose, as they have specific physical (optical, electrical) and chemical (selective binding, self-assembly) functions and offer a myriad of possibilities for (bio-)chemical modification. This Progress Report focuses on proteins as potential building components for future bioelectronic devices as they are quite efficient electronic conductors, compared with saturated organic molecules. The report addresses several questions: how general is this behavior; how does protein conduction compare with that of saturated and conjugated molecules; and what mechanisms enable efficient conduction across these large molecules? To answer these questions results of nanometer-scale and macroscopic electronic transport measurements across a range of organic molecules and proteins are compiled and analyzed, from single/few molecules to large molecular ensembles, and the influence of measurement methods on the results is considered. Generalizing, it is found that proteins conduct better than saturated molecules, and somewhat poorer than conjugated molecules. Significantly, the presence of cofactors (redox-active or conjugated) in the protein enhances their conduction, but without an obvious advantage for natural electron transfer proteins. Most likely, the conduction mechanisms are hopping (at higher temperatures) and tunneling (below ca. 150-200 K).
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Affiliation(s)
- Nadav Amdursky
- Dept. of Materials & Interfaces, Weizmann Institute of Science, Rehovot, 76305, Israel
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23
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Bâldea I. Electrochemical setup – a unique chance to simultaneously control orbital energies and vibrational properties of single-molecule junctions with unprecedented efficiency. Phys Chem Chem Phys 2014; 16:25942-9. [DOI: 10.1039/c4cp04316b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Arielly R, Vadai M, Kardash D, Noy G, Selzer Y. Real-Time Detection of Redox Events in Molecular Junctions. J Am Chem Soc 2014; 136:2674-80. [DOI: 10.1021/ja412668f] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Rani Arielly
- School
of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel
| | - Michal Vadai
- School
of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel
| | - Dina Kardash
- School
of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel
| | - Gilad Noy
- School
of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel
| | - Yoram Selzer
- School
of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel
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25
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Kaliginedi V, V. Rudnev A, Moreno-García P, Baghernejad M, Huang C, Hong W, Wandlowski T. Promising anchoring groups for single-molecule conductance measurements. Phys Chem Chem Phys 2014; 16:23529-39. [DOI: 10.1039/c4cp03605k] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Qualitative and quantitative comparison of the results obtained with different anchoring groups reveals structural and mechanistic details of the different types of single molecular junctions.
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Affiliation(s)
| | | | | | - Masoud Baghernejad
- Department of Chemistry and Biochemistry
- University of Bern
- Bern, Switzerland
| | - Cancan Huang
- Department of Chemistry and Biochemistry
- University of Bern
- Bern, Switzerland
| | - Wenjing Hong
- Department of Chemistry and Biochemistry
- University of Bern
- Bern, Switzerland
| | - Thomas Wandlowski
- Department of Chemistry and Biochemistry
- University of Bern
- Bern, Switzerland
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26
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Jayamurugan G, Finke AD, Gisselbrecht JP, Boudon C, Schweizer WB, Diederich F. One-Pot Access to Push–Pull Oligoenes by Sequential [2 + 2] Cycloaddition–Retroelectrocyclization Reactions. J Org Chem 2013; 79:426-31. [DOI: 10.1021/jo402440m] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Govindasamy Jayamurugan
- Laboratorium
für Organische Chemie, ETH-Zürich , Hönggerberg, HCI, CH-8093 Zürich, Switzerland
| | - Aaron D. Finke
- Laboratorium
für Organische Chemie, ETH-Zürich , Hönggerberg, HCI, CH-8093 Zürich, Switzerland
| | - Jean-Paul Gisselbrecht
- Laboratoire
d’Electrochimie et de Chimie Physique du Corps Solide, Institut
de Chimie−UMR 7177, C.N.R.S., Université de Strasbourg, 4 rue
Blaise Pascal, 67081 Strasbourg Cedex, France
| | - Corinne Boudon
- Laboratoire
d’Electrochimie et de Chimie Physique du Corps Solide, Institut
de Chimie−UMR 7177, C.N.R.S., Université de Strasbourg, 4 rue
Blaise Pascal, 67081 Strasbourg Cedex, France
| | - W. Bernd Schweizer
- Laboratorium
für Organische Chemie, ETH-Zürich , Hönggerberg, HCI, CH-8093 Zürich, Switzerland
| | - François Diederich
- Laboratorium
für Organische Chemie, ETH-Zürich , Hönggerberg, HCI, CH-8093 Zürich, Switzerland
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27
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Kolivoska V, Moreno-García P, Kaliginedi V, Hong W, Mayor M, Weibel N, Wandlowski T. Electron transport through catechol-functionalized molecular rods. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.02.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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28
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Moreno-García P, Gulcur M, Manrique DZ, Pope T, Hong W, Kaliginedi V, Huang C, Batsanov AS, Bryce MR, Lambert C, Wandlowski T. Single-Molecule Conductance of Functionalized Oligoynes: Length Dependence and Junction Evolution. J Am Chem Soc 2013; 135:12228-40. [DOI: 10.1021/ja4015293] [Citation(s) in RCA: 241] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pavel Moreno-García
- Department of Chemistry and
Biochemistry, University of Bern, Freiestrasse
3, CH-3012, Bern, Switzerland
- Instituto de Física, Benemérita Universidad Autónoma de Puebla, Apartado Postal J-48, Puebla
72570, México
| | - Murat Gulcur
- Department of Chemistry, Durham University, Durham DH1 3LE, United Kingdom
| | | | - Thomas Pope
- Department of Physics, Lancaster University, Lancaster LA1 4YB, United Kingdom
| | - Wenjing Hong
- Department of Chemistry and
Biochemistry, University of Bern, Freiestrasse
3, CH-3012, Bern, Switzerland
| | - Veerabhadrarao Kaliginedi
- Department of Chemistry and
Biochemistry, University of Bern, Freiestrasse
3, CH-3012, Bern, Switzerland
| | - Cancan Huang
- Department of Chemistry and
Biochemistry, University of Bern, Freiestrasse
3, CH-3012, Bern, Switzerland
| | - Andrei S. Batsanov
- Department of Chemistry, Durham University, Durham DH1 3LE, United Kingdom
| | - Martin R. Bryce
- Department of Chemistry, Durham University, Durham DH1 3LE, United Kingdom
| | - Colin Lambert
- Department of Physics, Lancaster University, Lancaster LA1 4YB, United Kingdom
| | - Thomas Wandlowski
- Department of Chemistry and
Biochemistry, University of Bern, Freiestrasse
3, CH-3012, Bern, Switzerland
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29
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Lee SK, Yamada R, Tanaka S, Chang GS, Asai Y, Tada H. Universal temperature crossover behavior of electrical conductance in a single oligothiophene molecular wire. ACS NANO 2012; 6:5078-5082. [PMID: 22591410 DOI: 10.1021/nn3006976] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We have observed and analyzed a universal temperature crossover behavior of electrical conductance in a single oligothiophene molecular wire. The crossover between the Arrhenius-type temperature dependence at high temperature and the temperature-invariant behavior at low temperature is found at a critical molecular wire length of 5.6 nm, where we found a change from the exponential length dependence to the length-invariant behavior. We have derived a scaling function analysis for the origin of the crossover behavior. After assuring that the analysis fits the explanation of the Keldysh Green's function calculation for the temperature dependence, we have applied it to our experimental results and found successfully that our scaling function gives a universal description of the temperature dependence for all over the temperature range.
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Affiliation(s)
- See Kei Lee
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
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30
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Chang S, Huang S, Liu H, Zhang P, Liang F, Akahori R, Li S, Gyarfas B, Shumway J, Ashcroft B, He J, Lindsay S. Chemical recognition and binding kinetics in a functionalized tunnel junction. NANOTECHNOLOGY 2012; 23:235101. [PMID: 22609769 PMCID: PMC3392519 DOI: 10.1088/0957-4484/23/23/235101] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
4(5)-(2-mercaptoethyl)-1H-imidazole-2-carboxamide is a molecule that has multiple hydrogen bonding sites and a short flexible linker. When tethered to a pair of electrodes, it traps target molecules in a tunnel junction. Surprisingly large recognition-tunneling signals are generated for all naturally occurring DNA bases A, C, G, T and 5-methyl-cytosine. Tunnel current spikes are stochastic and broadly distributed, but characteristic enough so that individual bases can be identified as a tunneling probe is scanned over DNA oligomers. Each base yields a recognizable burst of signal, the duration of which is controlled entirely by the probe speed, down to speeds of 1 nm s -1, implying a maximum off-rate of 3 s -1 for the recognition complex. The same measurements yield a lower bound on the on-rate of 1 M -1 s -1. Despite the stochastic nature of the signals, an optimized multiparameter fit allows base calling from a single signal peak with an accuracy that can exceed 80% when a single type of nucleotide is present in the junction, meaning that recognition-tunneling is capable of true single-molecule analysis. The accuracy increases to 95% when multiple spikes in a signal cluster are analyzed.
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Affiliation(s)
- Shuai Chang
- Department of Physics, Arizona State University, Tempe, AZ 85287, USA
- Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
| | - Shuo Huang
- Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
| | - Hao Liu
- Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
- Department of Chemistry and Biochemistry, Arizona State University, Tempe, AZ 85287, USA
| | - Peiming Zhang
- Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
| | - Feng Liang
- Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
| | - Rena Akahori
- Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
| | - Shengqin Li
- Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
| | - Brett Gyarfas
- Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
| | - John Shumway
- Department of Physics, Arizona State University, Tempe, AZ 85287, USA
| | - Brian Ashcroft
- Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
| | - Jin He
- Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
| | - Stuart Lindsay
- Department of Physics, Arizona State University, Tempe, AZ 85287, USA
- Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
- Department of Chemistry and Biochemistry, Arizona State University, Tempe, AZ 85287, USA
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31
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Klausen RS, Widawsky JR, Steigerwald ML, Venkataraman L, Nuckolls C. Conductive Molecular Silicon. J Am Chem Soc 2012; 134:4541-4. [DOI: 10.1021/ja211677q] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rebekka S. Klausen
- Department of Chemistry, Columbia University, New York, New York 10027, United
States
| | - Jonathan R. Widawsky
- Department of Applied
Physics
and Applied Mathematics, Columbia University, New York, New York 10027, United States
| | | | - Latha Venkataraman
- Department of Applied
Physics
and Applied Mathematics, Columbia University, New York, New York 10027, United States
| | - Colin Nuckolls
- Department of Chemistry, Columbia University, New York, New York 10027, United
States
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32
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Meisner JS, Sedbrook DF, Krikorian M, Chen J, Sattler A, Carnes ME, Murray CB, Steigerwald M, Nuckolls C. Functionalizing molecular wires: a tunable class of α,ω-diphenyl-μ,ν-dicyano-oligoenes. Chem Sci 2012. [DOI: 10.1039/c2sc00770c] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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33
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Walther ME, Wenger OS. Hole Tunneling and Hopping in a Ru(bpy)32+-Phenothiazine Dyad with a Bridge Derived from oligo-p-Phenylene. Inorg Chem 2011; 50:10901-7. [DOI: 10.1021/ic201446x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Mathieu E. Walther
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, D-37077 Göttingen, Germany
| | - Oliver S. Wenger
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, D-37077 Göttingen, Germany
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34
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Kloz M, Pillai S, Kodis G, Gust D, Moore TA, Moore AL, van Grondelle R, Kennis JTM. Carotenoid Photoprotection in Artificial Photosynthetic Antennas. J Am Chem Soc 2011; 133:7007-15. [DOI: 10.1021/ja1103553] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Miroslav Kloz
- Biophysics Section, Departments of Physics and Astronomy, Faculty of Sciences, VU University, De Boelelaan 1081, 1081HV Amsterdam, The Netherlands
| | - Smitha Pillai
- Department of Chemistry & Biochemistry and The Center for Bioenergy and Photosynthesis, Arizona State University, Tempe, Arizona 85287-1605, United States
| | - Gerdenis Kodis
- Department of Chemistry & Biochemistry and The Center for Bioenergy and Photosynthesis, Arizona State University, Tempe, Arizona 85287-1605, United States
| | - Devens Gust
- Department of Chemistry & Biochemistry and The Center for Bioenergy and Photosynthesis, Arizona State University, Tempe, Arizona 85287-1605, United States
| | - Thomas A. Moore
- Department of Chemistry & Biochemistry and The Center for Bioenergy and Photosynthesis, Arizona State University, Tempe, Arizona 85287-1605, United States
| | - Ana L. Moore
- Department of Chemistry & Biochemistry and The Center for Bioenergy and Photosynthesis, Arizona State University, Tempe, Arizona 85287-1605, United States
| | - Rienk van Grondelle
- Biophysics Section, Departments of Physics and Astronomy, Faculty of Sciences, VU University, De Boelelaan 1081, 1081HV Amsterdam, The Netherlands
| | - John T. M. Kennis
- Biophysics Section, Departments of Physics and Astronomy, Faculty of Sciences, VU University, De Boelelaan 1081, 1081HV Amsterdam, The Netherlands
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35
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MCGRAW KEVINJ, NOLAN PAULM, CRINO ONDIL. Carotenoids bolster immunity during moult in a wild songbird with sexually selected plumage coloration. Biol J Linn Soc Lond 2011. [DOI: 10.1111/j.1095-8312.2010.01594.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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36
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37
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Irimia-Vladu M, Sariciftci NS, Bauer S. Exotic materials for bio-organic electronics. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm02444a] [Citation(s) in RCA: 147] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Charge Transport in Single Molecular Junctions at the Solid/Liquid Interface. Top Curr Chem (Cham) 2011; 313:121-88. [DOI: 10.1007/128_2011_238] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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39
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40
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Huang S, He J, Chang S, Zhang P, Liang F, Li S, Tuchband M, Fuhrmann A, Ros R, Lindsay S. Identifying single bases in a DNA oligomer with electron tunnelling. NATURE NANOTECHNOLOGY 2010; 5:868-73. [PMID: 21076404 PMCID: PMC4121130 DOI: 10.1038/nnano.2010.213] [Citation(s) in RCA: 191] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2010] [Accepted: 10/04/2010] [Indexed: 05/21/2023]
Abstract
It has been proposed that single molecules of DNA could be sequenced by measuring the physical properties of the bases as they pass through a nanopore. Theoretical calculations suggest that electron tunnelling can identify bases in single-stranded DNA without enzymatic processing, and it was recently experimentally shown that tunnelling can sense individual nucleotides and nucleosides. Here, we report that tunnelling electrodes functionalized with recognition reagents can identify a single base flanked by other bases in short DNA oligomers. The residence time of a single base in a recognition junction is on the order of a second, but pulling the DNA through the junction with a force of tens of piconewtons would yield reading speeds of tens of bases per second.
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Affiliation(s)
- Shuo Huang
- Biodesign Institute, Arizona State University, Tempe, Arizona 85287, USA
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41
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Ron I, Pecht I, Sheves M, Cahen D. Proteins as solid-state electronic conductors. Acc Chem Res 2010; 43:945-53. [PMID: 20329769 DOI: 10.1021/ar900161u] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Protein structures can facilitate long-range electron transfer in solution. But a fundamental question remains: can these structures also serve as solid-state electronic conductors? Answering this question requires methods for studying conductivity of the "dry" protein (which only contains tightly bound structured water molecules) sandwiched between two electronic conductors in a solid-state type configuration. If successful, such systems could serve as the basis for future, bioinspired electronic device technology. In this Account, we survey, analyze, and compare macroscopic and nanoscopic (scanning probe) solid-state conductivities of proteins, noting the inherent constraints of each of these, and provide the first status report on this research area. This analysis shows convincing evidence that "dry" proteins pass orders of magnitude higher currents than saturated molecules with comparable thickness and that proteins with known electrical activity show electronic conductivity, nearly comparable to that of conjugated molecules ("wires"). These findings suggest that the structural features of proteins must have elements that facilitate electronic conductivity, even if they do not have a known electron transfer function. As a result, proteins could serve not only as sensing, polar,or photoactive elements in devices (such as field-effect transistor configurations) but also as electronic conductors. Current knowledge of peptide synthesis and protein modification paves the way toward a greater understanding of how changes in a protein's structure affect its conductivity. Such an approach could minimize the need for biochemical cascades in systems such as enzyme-based circuits, which transduce the protein's response to electronic current. In addition, as precision and sensitivity of solid-state measurements increase, and as knowledge of the structure and function of "dry" proteins grows, electronic conductivity may become an additional approach to study electron transfer in proteins and solvent effects without the introduction of donor or acceptor moieties. We are particularly interested in whether evolution might have prompted the electronic carrier transport capabilities of proteins for which no electrically active function is known in their native biological environment and anticipate that further research may help address this fascinating question.
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Affiliation(s)
- Izhar Ron
- Materials & Interfaces, Immunology and Organic Chemistry Departments, Weizmann Institute of Science, Rehovot, Israel 76100
| | - Israel Pecht
- Materials & Interfaces, Immunology and Organic Chemistry Departments, Weizmann Institute of Science, Rehovot, Israel 76100
| | - Mordechai Sheves
- Materials & Interfaces, Immunology and Organic Chemistry Departments, Weizmann Institute of Science, Rehovot, Israel 76100
| | - David Cahen
- Materials & Interfaces, Immunology and Organic Chemistry Departments, Weizmann Institute of Science, Rehovot, Israel 76100
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42
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Lindsay S, He J, Sankey O, Hapala P, Jelinek P, Zhang P, Chang S, Huang S. Recognition tunneling. NANOTECHNOLOGY 2010; 21:262001. [PMID: 20522930 PMCID: PMC2891988 DOI: 10.1088/0957-4484/21/26/262001] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
Single molecules in a tunnel junction can now be interrogated reliably using chemically functionalized electrodes. Monitoring stochastic bonding fluctuations between a ligand bound to one electrode and its target bound to a second electrode ('tethered molecule-pair' configuration) gives insight into the nature of the intermolecular bonding at a single molecule-pair level, and defines the requirements for reproducible tunneling data. Simulations show that there is an instability in the tunnel gap at large currents, and this results in a multiplicity of contacts with a corresponding spread in the measured currents. At small currents (i.e. large gaps) the gap is stable, and functionalizing a pair of electrodes with recognition reagents (the 'free-analyte' configuration) can generate a distinct tunneling signal when an analyte molecule is trapped in the gap. This opens up a new interface between chemistry and electronics with immediate implications for rapid sequencing of single DNA molecules.
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Affiliation(s)
- Stuart Lindsay
- Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
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43
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Li Z, Liu Y, Mertens SFL, Pobelov IV, Wandlowski T. From Redox Gating to Quantized Charging. J Am Chem Soc 2010; 132:8187-93. [DOI: 10.1021/ja102754n] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhihai Li
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland, and Institute of Bio- and Nanosystems IBN 3 and Center of Nanoelectronic Systems, for Informational Technology, Research Center Jülich, D-52425 Jülich, Germany
| | - Yaqing Liu
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland, and Institute of Bio- and Nanosystems IBN 3 and Center of Nanoelectronic Systems, for Informational Technology, Research Center Jülich, D-52425 Jülich, Germany
| | - Stijn F. L. Mertens
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland, and Institute of Bio- and Nanosystems IBN 3 and Center of Nanoelectronic Systems, for Informational Technology, Research Center Jülich, D-52425 Jülich, Germany
| | - Ilya V. Pobelov
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland, and Institute of Bio- and Nanosystems IBN 3 and Center of Nanoelectronic Systems, for Informational Technology, Research Center Jülich, D-52425 Jülich, Germany
| | - Thomas Wandlowski
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland, and Institute of Bio- and Nanosystems IBN 3 and Center of Nanoelectronic Systems, for Informational Technology, Research Center Jülich, D-52425 Jülich, Germany
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44
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Petrangolini P, Alessandrini A, Berti L, Facci P. An Electrochemical Scanning Tunneling Microscopy Study of 2-(6-Mercaptoalkyl)hydroquinone Molecules on Au(111). J Am Chem Soc 2010; 132:7445-53. [DOI: 10.1021/ja101666q] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Paolo Petrangolini
- Centro S3, CNR-Istituto di Nanoscienze, Via Campi 213/A, 41125 Modena, Italy, and Department of Physics, University of Modena and Reggio Emilia, Via Campi 213/A, 41125 Modena, Italy
| | - Andrea Alessandrini
- Centro S3, CNR-Istituto di Nanoscienze, Via Campi 213/A, 41125 Modena, Italy, and Department of Physics, University of Modena and Reggio Emilia, Via Campi 213/A, 41125 Modena, Italy
| | - Lorenzo Berti
- Centro S3, CNR-Istituto di Nanoscienze, Via Campi 213/A, 41125 Modena, Italy, and Department of Physics, University of Modena and Reggio Emilia, Via Campi 213/A, 41125 Modena, Italy
| | - Paolo Facci
- Centro S3, CNR-Istituto di Nanoscienze, Via Campi 213/A, 41125 Modena, Italy, and Department of Physics, University of Modena and Reggio Emilia, Via Campi 213/A, 41125 Modena, Italy
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45
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Xing Y, Park TH, Venkatramani R, Keinan S, Beratan DN, Therien MJ, Borguet E. Optimizing Single-Molecule Conductivity of Conjugated Organic Oligomers with Carbodithioate Linkers. J Am Chem Soc 2010; 132:7946-56. [DOI: 10.1021/ja909559m] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yangjun Xing
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, Departments of Chemistry, Biochemistry, and Physics, Duke University, Durham, North Carolina 27708, and Department of Chemistry, French Family Science Center, Duke University, Durham, North Carolina 27708
| | - Tae-Hong Park
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, Departments of Chemistry, Biochemistry, and Physics, Duke University, Durham, North Carolina 27708, and Department of Chemistry, French Family Science Center, Duke University, Durham, North Carolina 27708
| | - Ravindra Venkatramani
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, Departments of Chemistry, Biochemistry, and Physics, Duke University, Durham, North Carolina 27708, and Department of Chemistry, French Family Science Center, Duke University, Durham, North Carolina 27708
| | - Shahar Keinan
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, Departments of Chemistry, Biochemistry, and Physics, Duke University, Durham, North Carolina 27708, and Department of Chemistry, French Family Science Center, Duke University, Durham, North Carolina 27708
| | - David N. Beratan
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, Departments of Chemistry, Biochemistry, and Physics, Duke University, Durham, North Carolina 27708, and Department of Chemistry, French Family Science Center, Duke University, Durham, North Carolina 27708
| | - Michael J. Therien
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, Departments of Chemistry, Biochemistry, and Physics, Duke University, Durham, North Carolina 27708, and Department of Chemistry, French Family Science Center, Duke University, Durham, North Carolina 27708
| | - Eric Borguet
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, Departments of Chemistry, Biochemistry, and Physics, Duke University, Durham, North Carolina 27708, and Department of Chemistry, French Family Science Center, Duke University, Durham, North Carolina 27708
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46
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Vericat C, Vela ME, Benitez G, Carro P, Salvarezza RC. Self-assembled monolayers of thiols and dithiols on gold: new challenges for a well-known system. Chem Soc Rev 2010; 39:1805-34. [PMID: 20419220 DOI: 10.1039/b907301a] [Citation(s) in RCA: 767] [Impact Index Per Article: 54.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Self-assembled monolayers (SAMs) of alkanethiols and dialkanethiols on gold are key elements for building many systems and devices with applications in the wide field of nanotechnology. Despite the progress made in the knowledge of these fascinating two-dimensional molecular systems, there are still several "hot topics" that deserve special attention in order to understand and to control their physical and chemistry properties at the molecular level. This critical review focuses on some of these topics, including the nature of the molecule-gold interface, whose chemistry and structure remain elusive, the self-assembly process on planar and irregular surfaces, and on nanometre-sized objects, and the chemical reactivity and thermal stability of these systems in ambient and aqueous solutions, an issue which seriously limits their technological applications (375 references).
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Affiliation(s)
- C Vericat
- Instituto de Investigaciones Fisicoquímicas Teóricasy Aplicadas (INIFTA), Universidad Nacional de La Plata-CONICET, Sucursal 4 Casilla de Correo 16, (1900) La Plata, Argentina
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47
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Shih KN, Huang MJ, Lu HC, Fu MD, Kuo CK, Huang GC, Lee GH, Chen CH, Peng SM. On the tuning of electric conductance of extended metal atom chains via axial ligands for [Ru3(μ3-dpa)4(X)2]0/+ (X = NCS−, CN−). Chem Commun (Camb) 2010; 46:1338-40. [DOI: 10.1039/b916677g] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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48
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Ko CH, Huang MJ, Fu MD, Chen CH. Superior Contact for Single-Molecule Conductance: Electronic Coupling of Thiolate and Isothiocyanate on Pt, Pd, and Au. J Am Chem Soc 2009; 132:756-64. [DOI: 10.1021/ja9084012] [Citation(s) in RCA: 112] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chih-Hung Ko
- Department of Chemistry, National Taiwan University, Taipei, Taiwan 10617, and Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan 30013
| | - Min-Jie Huang
- Department of Chemistry, National Taiwan University, Taipei, Taiwan 10617, and Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan 30013
| | - Ming-Dung Fu
- Department of Chemistry, National Taiwan University, Taipei, Taiwan 10617, and Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan 30013
| | - Chun-hsien Chen
- Department of Chemistry, National Taiwan University, Taipei, Taiwan 10617, and Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan 30013
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49
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Myers CP, Miller JR, Williams ME. Impacts of the Location and Number of [Cu(bpy)2]2+ Cross-Links on the Emission Photodynamics of [Ru(bpy)3]2+ with Pendant Oligo(aminoethylglycine) Chains. J Am Chem Soc 2009; 131:15291-300. [DOI: 10.1021/ja905493x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Carl P. Myers
- Department of Chemistry, 104 Chemistry Building, and Huck Institutes of the Life Sciences Mass Spectrometry Facility, 3 Althouse Laboratory, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - James R. Miller
- Department of Chemistry, 104 Chemistry Building, and Huck Institutes of the Life Sciences Mass Spectrometry Facility, 3 Althouse Laboratory, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Mary Elizabeth Williams
- Department of Chemistry, 104 Chemistry Building, and Huck Institutes of the Life Sciences Mass Spectrometry Facility, 3 Althouse Laboratory, The Pennsylvania State University, University Park, Pennsylvania 16802
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50
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He J, Lin L, Liu H, Zhang P, Lee M, Sankey OF, Lindsay SM. A hydrogen-bonded electron-tunneling circuit reads the base composition of unmodified DNA. NANOTECHNOLOGY 2009; 20:075102. [PMID: 19417406 PMCID: PMC2678007 DOI: 10.1088/0957-4484/20/7/075102] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Using a tunnel junction in which one electrode is guanidinium-functionalized (to trap DNA via hydrogen bonding to the backbone phosphates) and a second electrode which is functionalized with a base (to capture its complementary target on the DNA), current versus distance curves are obtained which yield an accurate measure of the base composition of DNA oligomers. With this long tunneling path, resolution is limited to sequence blocks of about twenty bases or larger, because of the need to form a large-area tunnel junction. A shorter hydrogen-bonded path across bases will be required for DNA sequencing. Nonetheless, these measurements point the way to a new type of nanoscale sensor.
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Affiliation(s)
- Jin He
- Biodesign Institute, Arizona State University, Tempe, AZ 85287
| | - Lisha Lin
- Biodesign Institute, Arizona State University, Tempe, AZ 85287
- Department of Chemistry and Biochemistry, Arizona State University, Tempe, AZ 85287
| | - Hao Liu
- Biodesign Institute, Arizona State University, Tempe, AZ 85287
- Department of Chemistry and Biochemistry, Arizona State University, Tempe, AZ 85287
| | - Peiming Zhang
- Biodesign Institute, Arizona State University, Tempe, AZ 85287
| | - Myeong Lee
- Department of Physics, Arizona State University, Tempe, AZ 85287
| | - O F Sankey
- Department of Physics, Arizona State University, Tempe, AZ 85287
| | - SM Lindsay
- Biodesign Institute, Arizona State University, Tempe, AZ 85287
- Department of Chemistry and Biochemistry, Arizona State University, Tempe, AZ 85287
- Department of Physics, Arizona State University, Tempe, AZ 85287
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