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Huang SH, Parandhaman M, Farnia S, Kim J, Amemiya S. Nanoelectrochemistry at liquid/liquid interfaces for analytical, biological, and material applications. Chem Commun (Camb) 2023; 59:9575-9590. [PMID: 37458703 PMCID: PMC10416082 DOI: 10.1039/d3cc01982a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
Abstract
Herein, we feature our recent efforts toward the development and application of nanoelectrochemistry at liquid/liquid interfaces, which are also known as interfaces between two immiscible electrolyte solutions (ITIES). Nanopipets, nanopores, and nanoemulsions are developed to create the nanoscale ITIES for the quantitative electrochemical measurement of ion transfer, electron transfer, and molecular transport across the interface. The nanoscale ITIES serves as an electrochemical nanosensor to enable the selective detection of various ions and molecules as well as high-resolution chemical imaging based on scanning electrochemical microscopy. The powerful nanoelectroanalytical methods will be useful for biological and material applications as illustrated by in situ studies of solid-state nanopores, nuclear pore complexes, living bacteria, and advanced nanoemulsions. These studies provide unprecedented insights into the chemical reactivity of important biological and material systems even at the single nanostructure level.
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Affiliation(s)
- Siao-Han Huang
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA.
| | | | - Solaleh Farnia
- Department of Chemistry, University of Rhode Island, Kingston, RI, 02881, USA.
| | - Jiyeon Kim
- Department of Chemistry, University of Rhode Island, Kingston, RI, 02881, USA.
| | - Shigeru Amemiya
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA.
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Elangovan S, Puri SR, Madawala H, Pantano J, Pellock B, Kiesewetter MK, Kim J. Nanoscale Carbonate Ion-Selective Amperometric/Voltammetric Probes Based on Ion-Ionophore Recognition at the Organic/Water Interface: Hidden Pieces of the Puzzle in the Nanoscale Phase. Anal Chem 2023; 95:4271-4281. [PMID: 36808982 DOI: 10.1021/acs.analchem.2c02626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Here, we report on the successful demonstration and application of carbonate (CO32-) ion-selective amperometric/voltammetric nanoprobes based on facilitated ion transfer (IT) at the nanoscale interface between two immiscible electrolyte solutions. This electrochemical study reveals critical factors to govern CO32--selective nanoprobes using broadly available Simon-type ionophores forming a covalent bond with CO32-, i.e., slow dissolution of lipophilic ionophores in the organic phase, activation of hydrated ionophores, peculiar solubility of a hydrated ion-ionophore complex near the interface, and cleanness at the nanoscale interface. These factors are experimentally confirmed by nanopipet voltammetry, where a facilitated CO32- IT is studied with a nanopipet filled with an organic phase containing the trifluoroacetophenone derivative CO32-ionophore (CO32-ionophore VII) by voltammetrically and amperometrically sensing CO32- in water. Theoretical assessments of reproducible voltammetric data confirm that the dynamics of CO32- ionophore VII-facilitated ITs (FITs) follows the one-step electrochemical (E) mechanism controlled by both water-finger formation/dissociation and ion-ionophore complexation/dissociation during interfacial ITs. The yielded rate constant, k0 = 0.048 cm/s, is very similar to the reported values of other FIT reactions using ionophores forming non-covalent bonds with ions, implying that a weak binding between CO32- ion-ionophore enables us to observe FITs by fast nanopipet voltammetry regardless of the nature of bondings between the ion and ionophore. The analytical utility of CO32--selective amperometric nanoprobes is further demonstrated by measuring the CO32- concentration produced by metal-reducing bacteria Shewanella oneidensis MR-1 as a result of organic fuel oxidation in bacterial growth media in the presence of various interferents such as H2PO4-, Cl-, and SO42-.
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Affiliation(s)
- Subhashini Elangovan
- Department of Chemistry, University of Rhode Island, Kingston, Rhode Island 02881, United States
| | - Surendra Raj Puri
- Department of Chemistry, University of Rhode Island, Kingston, Rhode Island 02881, United States
| | - Hiranya Madawala
- Department of Chemistry, University of Rhode Island, Kingston, Rhode Island 02881, United States
| | - Justin Pantano
- Department of Chemistry, University of Rhode Island, Kingston, Rhode Island 02881, United States
| | - Brett Pellock
- Department of Biology, Providence College, Providence, Rhode Island 02981, United States
| | - Matthew K Kiesewetter
- Department of Chemistry, University of Rhode Island, Kingston, Rhode Island 02881, United States
| | - Jiyeon Kim
- Department of Chemistry, University of Rhode Island, Kingston, Rhode Island 02881, United States
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Amemiya S. Nanoelectrochemical Study of Molecular Transport through the Nuclear Pore Complex. CHEM REC 2021; 21:1430-1441. [PMID: 33502100 PMCID: PMC8217113 DOI: 10.1002/tcr.202000175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/13/2021] [Accepted: 01/14/2021] [Indexed: 11/10/2022]
Abstract
The nuclear pore complex (NPC) is the proteinaceous nanopore that solely mediates the transport of both small molecules and macromolecules between the nucleus and cytoplasm of a eukaryotic cell to regulate gene expression. In this personal account, we introduce recent progress in our nanoelectrochemical study of molecular transport through the NPC. Our work represents the importance of chemistry in understanding and controlling of NPC-mediated molecular transport to enable the efficient and safe delivery of genetic therapeutics into the nucleus, thereby fundamentally contributing to human health. Specifically, we employ nanoscale scanning electrochemical microscopy to test our hypothesis that the nanopore of the NPC is divided by transport barriers concentrically into peripheral and central routes to efficiently mediate the bimodal traffic of protein transport and RNA export, respectively, through cooperative hydrophobic and electrostatic interactions.
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Affiliation(s)
- Shigeru Amemiya
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, 15260, PA
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Mao C, Yuan D, Wang L, Bakker E. Separating boundary potential changes at thin solid contact ion transfer voltammetric membrane electrodes. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2020.114800] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lindner E, Guzinski M, Pendley B, Chaum E. Plasticized PVC Membrane Modified Electrodes: Voltammetry of Highly Hydrophobic Compounds. MEMBRANES 2020; 10:E202. [PMID: 32867276 PMCID: PMC7558981 DOI: 10.3390/membranes10090202] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/17/2020] [Accepted: 08/21/2020] [Indexed: 12/30/2022]
Abstract
In the last 50 years, plasticized polyvinyl chloride (PVC) membranes have gained unique importance in chemical sensor development. Originally, these membranes separated two solutions in conventional ion-selective electrodes. Later, the same membranes were applied over a variety of supporting electrodes and used in both potentiometric and voltammetric measurements of ions and electrically charged molecules. The focus of this paper is to demonstrate the utility of the plasticized PVC membrane modified working electrode for the voltammetric measurement of highly lipophilic molecules. The plasticized PVC membrane prevents electrode fouling, extends the detection limit of the voltammetric methods to sub-micromolar concentrations, and minimizes interference by electrochemically active hydrophilic analytes.
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Affiliation(s)
- Ernő Lindner
- Department of Biomedical Engineering, The University of Memphis, Memphis, TN 38152, USA;
| | - Marcin Guzinski
- Vanderbilt Eye Institute, Vanderbilt University Medical Center, Nashville, TN 37232, USA; (M.G.); (E.C.)
| | - Bradford Pendley
- Department of Biomedical Engineering, The University of Memphis, Memphis, TN 38152, USA;
| | - Edward Chaum
- Vanderbilt Eye Institute, Vanderbilt University Medical Center, Nashville, TN 37232, USA; (M.G.); (E.C.)
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Kałuża D, Michalska A, Maksymiuk K. Voltammetric Properties of All‐solid State Ion‐selective Electrodes with Multiwalled Carbon Nanotubes‐poly(3‐octylthiophene‐2,5‐diyl) Nanocomposite Transducer. ELECTROANAL 2019. [DOI: 10.1002/elan.201900380] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Dawid Kałuża
- Faculty of ChemistryUniversity of Warsaw, Pasteura 1 02-093 Warsaw Poland
| | - Agata Michalska
- Faculty of ChemistryUniversity of Warsaw, Pasteura 1 02-093 Warsaw Poland
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Podrażka M, Maciejewska J, Adamiak W, Witkowska Nery E, Jönsson-Niedziółka M. Facilitated cation transfer at a three-phase junction and its applicability for ionophore evaluation. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.03.201] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Yilmaz I, Chen LD, Chen XV, Anderson EL, da Costa RC, Gladysz JA, Bühlmann P. Potentiometric Selectivities of Ionophore-Doped Ion-Selective Membranes: Concurrent Presence of Primary Ion or Interfering Ion Complexes of Multiple Stoichiometries. Anal Chem 2019; 91:2409-2417. [PMID: 30609363 DOI: 10.1021/acs.analchem.8b05196] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The selectivities of ionophore-doped ion-selective electrode (ISE) membranes are controlled by the stability and stoichiometry of the complexes between the ionophore, L, and the target and interfering ions (I zi and J zj, respectively). Well-accepted models predict how these selectivities can be optimized by selection of ideal ionophore-to-ionic site ratios, considering complex stoichiometries and ion charges. These models were developed for systems in which the target and interfering ions each form complexes of only one stoichiometry. However, for a few ISEs, the concurrent presence of two primary ion complexes of different stoichiometries, such as IL zi and IL2 zi, was reported. Indeed, similar systems were probably often overlooked and are, in fact, more common than the exclusive formation of complexes of higher stoichiometry unless the ionophore is used in excess. Importantly, misinterpreted stoichiometries misguide the design of new ionophores and are likely to result in the formulation of ISE membranes with inferior selectivities. We show here that the presence of two or more complexes of different stoichiometries for a given ion may be inferred experimentally from careful interpretation of the potentiometric selectivities as a function of the ionophore-to-ionic site ratio or from calculations of complex concentrations using experimentally determined complex stabilities. Concurrent formation of JL zj and JL2 zj complexes of an interfering ion is shown here to shift the ionophore-to-ionic site ratio that provides the highest selectivities. Formation of IL n-1 zi and IL n zi complexes of a primary ion is less of a concern because an optimized membrane typically contains an excess of ionophore, but lower than expected selectivities may be observed if the stepwise complex formation constant, KILn, is not sufficiently large and the ionophore-to-ionic site ratio does not markedly exceed n.
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Affiliation(s)
- Ibrahim Yilmaz
- Department of Chemistry, Kamil Ozdag Science Faculty , Karamanoglu Mehmetbey University , 70100 Karaman , Turkey.,Department of Chemistry , University of Minnesota 207 Pleasant Street Southeast , Minneapolis , Minnesota 55455 , United States
| | - Li D Chen
- Department of Chemistry , University of Minnesota 207 Pleasant Street Southeast , Minneapolis , Minnesota 55455 , United States
| | - Xin V Chen
- Department of Chemistry , University of Minnesota 207 Pleasant Street Southeast , Minneapolis , Minnesota 55455 , United States
| | - Evan L Anderson
- Department of Chemistry , University of Minnesota 207 Pleasant Street Southeast , Minneapolis , Minnesota 55455 , United States
| | - Rosenildo Correa da Costa
- Department of Chemistry , Texas A&M University , P.O. Box 30012, College Station , Texas 77842 , United States.,School of Applied Sciences, Faculty of Computing, Engineering and Science , University of South Wales , Cemetery Road , Glyntaff , CF37 4DB , United Kingdom
| | - John A Gladysz
- Department of Chemistry , Texas A&M University , P.O. Box 30012, College Station , Texas 77842 , United States
| | - Philippe Bühlmann
- Department of Chemistry , University of Minnesota 207 Pleasant Street Southeast , Minneapolis , Minnesota 55455 , United States
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Affiliation(s)
- Elena Zdrachek
- Department of Inorganic and Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| | - Eric Bakker
- Department of Inorganic and Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
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Izadyar A. Stripping Voltammetry at the Interface between two Immiscible Electrolyte Solutions: A Review Paper. ELECTROANAL 2018. [DOI: 10.1002/elan.201800279] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Anahita Izadyar
- Department of Chemistry and Physics; Arkansas State University, PO Box 419; State University; AR 72467 USA
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De Simone NA, Schettini R, Talotta C, Gaeta C, Izzo I, Della Sala G, Neri P. Directing the Cation Recognition Ability of Calix[4]arenes toward Asymmetric Phase-Transfer Catalysis. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700912] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Nicola Alessandro De Simone
- Dipartimento di Chimica e Biologia “A. Zambelli”; Università di Salerno; Via Giovanni Paolo II 132 84084 Fisciano (Salerno) Italy
| | - Rosaria Schettini
- Dipartimento di Chimica e Biologia “A. Zambelli”; Università di Salerno; Via Giovanni Paolo II 132 84084 Fisciano (Salerno) Italy
| | - Carmen Talotta
- Dipartimento di Chimica e Biologia “A. Zambelli”; Università di Salerno; Via Giovanni Paolo II 132 84084 Fisciano (Salerno) Italy
| | - Carmine Gaeta
- Dipartimento di Chimica e Biologia “A. Zambelli”; Università di Salerno; Via Giovanni Paolo II 132 84084 Fisciano (Salerno) Italy
| | - Irene Izzo
- Dipartimento di Chimica e Biologia “A. Zambelli”; Università di Salerno; Via Giovanni Paolo II 132 84084 Fisciano (Salerno) Italy
| | - Giorgio Della Sala
- Dipartimento di Chimica e Biologia “A. Zambelli”; Università di Salerno; Via Giovanni Paolo II 132 84084 Fisciano (Salerno) Italy
| | - Placido Neri
- Dipartimento di Chimica e Biologia “A. Zambelli”; Università di Salerno; Via Giovanni Paolo II 132 84084 Fisciano (Salerno) Italy
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Yuan D, Cuartero M, Crespo GA, Bakker E. Voltammetric Thin-Layer Ionophore-Based Films: Part 1. Experimental Evidence and Numerical Simulations. Anal Chem 2016; 89:586-594. [DOI: 10.1021/acs.analchem.6b03354] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Dajing Yuan
- Department of Inorganic and
Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| | - Maria Cuartero
- Department of Inorganic and
Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| | - Gaston A. Crespo
- Department of Inorganic and
Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| | - Eric Bakker
- Department of Inorganic and
Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
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