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Gomes Amorim C, Araújo A, Conceição Montenegro M. Use of Cucurbit[6]uril as Ionophore in Ion Selective Electrodes for Etilefrine Determination in Pharmaceuticals. ELECTROANAL 2019. [DOI: 10.1002/elan.201800634] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Célia Gomes Amorim
- REQUIMTE/Departamento de Ciências Químicas; Faculdade de Farmácia.Universidade do Porto. R. Jorge Viterbo Ferreira, 228. 4050-313 Porto. Portugal
| | - Alberto Araújo
- REQUIMTE/Departamento de Ciências Químicas; Faculdade de Farmácia.Universidade do Porto. R. Jorge Viterbo Ferreira, 228. 4050-313 Porto. Portugal
| | - Maria Conceição Montenegro
- REQUIMTE/Departamento de Ciências Químicas; Faculdade de Farmácia.Universidade do Porto. R. Jorge Viterbo Ferreira, 228. 4050-313 Porto. Portugal
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2
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Pazos E, Novo P, Peinador C, Kaifer AE, García MD. Cucurbit[8]uril (CB[8])‐Based Supramolecular Switches. Angew Chem Int Ed Engl 2018; 58:403-416. [DOI: 10.1002/anie.201806575] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Indexed: 01/05/2023]
Affiliation(s)
- Elena Pazos
- Departamento de Química Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA) Universidade da Coruña 15071, A Coruña Spain
| | - Paula Novo
- Departamento de Química Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA) Universidade da Coruña 15071, A Coruña Spain
| | - Carlos Peinador
- Departamento de Química Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA) Universidade da Coruña 15071, A Coruña Spain
| | - Angel E. Kaifer
- Department of Chemistry University of Miami Coral Gables FL 33124 USA
| | - Marcos D. García
- Departamento de Química Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA) Universidade da Coruña 15071, A Coruña Spain
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3
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Pazos E, Novo P, Peinador C, Kaifer AE, García MD. Supramolekulare Schalter auf der Basis von Cucurbit[8]uril (CB[8]). Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806575] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Elena Pazos
- Departamento de Química Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA) Universidade da Coruña 15071, A Coruña Spanien
| | - Paula Novo
- Departamento de Química Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA) Universidade da Coruña 15071, A Coruña Spanien
| | - Carlos Peinador
- Departamento de Química Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA) Universidade da Coruña 15071, A Coruña Spanien
| | - Angel E. Kaifer
- Department of Chemistry University of Miami Coral Gables FL 33124 USA
| | - Marcos D. García
- Departamento de Química Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA) Universidade da Coruña 15071, A Coruña Spanien
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4
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Affiliation(s)
- Stephan Sinn
- Institute of Nanotechnology (INT); Karlsruhe Institute of Technology (KIT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Deutschland/Germany
| | - Frank Biedermann
- Institute of Nanotechnology (INT); Karlsruhe Institute of Technology (KIT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Deutschland/Germany
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5
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Krishnan SB, Gopidas KR. Observation of Supramolecular Chirality in a Hierarchically Self‐Assembled Mixed‐Stack Charge‐Transfer Complex. Chemistry 2017; 23:9600-9606. [DOI: 10.1002/chem.201701123] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Indexed: 01/22/2023]
Affiliation(s)
- Sumesh Babu Krishnan
- Photosciences and Photonics SectionChemical Sciences and Technology DivisionCSIR-National Institute for Interdisciplinary Science and Technology, Trivandrum 695 019 India
- Academy of Scientific and Innovative Research (AcSIR) New Delhi 110001 India
| | - Karical Raman Gopidas
- Photosciences and Photonics SectionChemical Sciences and Technology DivisionCSIR-National Institute for Interdisciplinary Science and Technology, Trivandrum 695 019 India
- Academy of Scientific and Innovative Research (AcSIR) New Delhi 110001 India
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6
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Walsh-Korb Z, Yu Y, Janeček ER, Lan Y, Del Barrio J, Williams PE, Zhang X, Scherman OA. Single-Molecule Force Spectroscopy Quantification of Adhesive Forces in Cucurbit[8]Uril Host-Guest Ternary Complexes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:1343-1350. [PMID: 28055217 DOI: 10.1021/acs.langmuir.6b03457] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Cucurbit[8]uril (CB[8]) heteroternary complexes display certain characteristics making them well-suited for molecular level adhesives. In particular, careful choice of host-guest binding pairs enables specific, fully reversible adhesion. Understanding the effect of the environment is also critical when developing new molecular level adhesives. Here we explore the binding forces involved in the methyl viologen·CB[8]·naphthol heteroternary complex using single-molecule force spectroscopy (SMFS) under a variety of conditions. From SMFS, the interaction of a single ternary complex was found to be in the region of 140 pN. Additionally, a number of surface interactions could be readily differentiated using the SMFS technique allowing for a deeper understanding of the dynamic heteroternary CB[8] system on the single-molecule scale.
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Affiliation(s)
- Zarah Walsh-Korb
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge, CB2 1EW, United Kingdom
| | - Ying Yu
- Department of Chemistry, Tsinghua University , Beijing 100084, China
| | - Emma-Rose Janeček
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge, CB2 1EW, United Kingdom
| | - Yang Lan
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge, CB2 1EW, United Kingdom
| | - Jesús Del Barrio
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge, CB2 1EW, United Kingdom
| | - Paul E Williams
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge, CB2 1EW, United Kingdom
| | - Xi Zhang
- Department of Chemistry, Tsinghua University , Beijing 100084, China
| | - Oren A Scherman
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge, CB2 1EW, United Kingdom
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7
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Mikulu L, Michalicova R, Iglesias V, Yawer MA, Kaifer AE, Lubal P, Sindelar V. pH Control on the Sequential Uptake and Release of Organic Cations by Cucurbit[7]uril. Chemistry 2017; 23:2350-2355. [DOI: 10.1002/chem.201604417] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Lukas Mikulu
- Department of Chemistry; Masaryk University; Kamenice 5 625 00 Brno Czech Republic
| | - Romana Michalicova
- Department of Chemistry; Masaryk University; Kamenice 5 625 00 Brno Czech Republic
| | - Vivian Iglesias
- Center for Supramolecular Science and Department of Chemistry; University of Miami; Coral Gables FL 33124-0431 USA
| | - Mirza A. Yawer
- Department of Chemistry; Masaryk University; Kamenice 5 625 00 Brno Czech Republic
- RECETOX; Masaryk University; Kamenice 5 625 00 Brno Czech Republic
| | - Angel E. Kaifer
- Center for Supramolecular Science and Department of Chemistry; University of Miami; Coral Gables FL 33124-0431 USA
| | - Premysl Lubal
- Department of Chemistry; Masaryk University; Kamenice 5 625 00 Brno Czech Republic
- Central European Institute of Technology (CEITEC); Masaryk University; Kamenice 5 625 00 Brno Czech Republic
| | - Vladimir Sindelar
- Department of Chemistry; Masaryk University; Kamenice 5 625 00 Brno Czech Republic
- RECETOX; Masaryk University; Kamenice 5 625 00 Brno Czech Republic
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González-Campo A, Brasch M, Uhlenheuer DA, Gómez-Casado A, Yang L, Brunsveld L, Huskens J, Jonkheijm P. Supramolecularly oriented immobilization of proteins using cucurbit[8]uril. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:16364-16371. [PMID: 23134267 DOI: 10.1021/la303987c] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A supramolecular strategy is used for oriented positioning of proteins on surfaces. A viologen-based guest molecule is attached to the surface, while a naphthol guest moiety is chemoselectively ligated to a yellow fluorescent protein. Cucurbit[8]uril (CB[8]) is used to link the proteins onto surfaces through specific charge-transfer interactions between naphthol and viologen inside the CB cavity. The assembly process is characterized using fluorescence and atomic force microscopy, surface plasmon resonance, IR-reflective absorption, and X-ray photoelectron spectroscopy measurements. Two different immobilization routes are followed to form patterns of the protein ternary complexes on the surfaces. Each immobilization route consists of three steps: (i) attaching the viologen to the glass using microcontact chemistry, (ii) blocking, and (iii) either incubation or microcontact printing of CB[8] and naphthol guests. In both cases uniform and stable fluorescent patterns are fabricated with a high signal-to-noise ratio. Control experiments confirm that CB[8] serves as a selective linking unit to form stable and homogeneous ternary surface-bound complexes as envisioned. The attachment of the yellow fluorescent protein complexes is shown to be reversible and reusable for assembly as studied using fluorescence microscopy.
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Affiliation(s)
- Arántzazu González-Campo
- Molecular Nanofabrication Group, Department of Science and Technology, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands
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An Q, Brinkmann J, Huskens J, Krabbenborg S, de Boer J, Jonkheijm P. A Supramolecular System for the Electrochemically Controlled Release of Cells. Angew Chem Int Ed Engl 2012; 51:12233-7. [DOI: 10.1002/anie.201205651] [Citation(s) in RCA: 112] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2012] [Indexed: 12/22/2022]
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12
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An Q, Brinkmann J, Huskens J, Krabbenborg S, de Boer J, Jonkheijm P. A Supramolecular System for the Electrochemically Controlled Release of Cells. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201205651] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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13
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Pozo MD, Blanco E, Fatás E, Hernández P, Quintana C. New supramolecular interactions for electrochemical sensors development: different cucurbit[8]uril sensing platform designs. Analyst 2012; 137:4302-8. [DOI: 10.1039/c2an35325c] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Biedermann F, Rauwald U, Cziferszky M, Williams KA, Gann LD, Guo BY, Urbach AR, Bielawski CW, Scherman OA. Benzobis(imidazolium)-cucurbit[8]uril complexes for binding and sensing aromatic compounds in aqueous solution. Chemistry 2011; 16:13716-22. [PMID: 21058380 DOI: 10.1002/chem.201002274] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The utilities of benzobis(imidazolium) salts (BBIs) as stable and fluorescent components of supramolecular assemblies involving the macrocyclic host, cucurbit[8]uril (CB[8]), are described. CB[8] has the unusual ability to bind tightly and selectively to two different guests in aqueous media, typically methyl viologen (MV) as the first guest, followed by an indole, naphthalene, or catechol-containing second guest. Based on similar size, shape, and charge, tetramethyl benzobis(imidazolium) (MBBI) was identified as a potential alternative to MV that would increase the repertoire of guests for cucurbit[8]uril. Isothermal titration calorimetry (ITC) studies showed that MBBI binds to CB[8] in a 1:1 ratio with an equilibrium association constant (K(a)) value of 5.7×10(5) M(-1), and that the resulting MBBI·CB[8] complex binds to a series of aromatic second guests with K(a) values ranging from 10(3) to 10(5) M(-1). These complexation phenomena were supported by mass spectrometry, which confirmed complex formation, and a series of NMR studies that showed the expected upfield perturbation of aromatic peaks and of the MBBI methyl peaks. Surprisingly, the binding behavior of MBBI is strikingly similar to that of MV, and yet MBBI offers a number of substantial advantages for many applications, including intrinsic fluorescence, high chemical stability, and broad synthetic tunability. Indeed, the intense fluorescence emission of the MBBI·CB[8] complex was quenched upon binding to the second guests, thus demonstrating the utility of MBBI as a component for optical sensing. Building on these favorable properties, the MBBI·CB[8] system was successfully applied to the sequence-selective recognition of peptides as well as the controlled disassembly of polymer aggregates in water. These results broaden the available guests for the cucurbit[n]uril family and demonstrate potentially new applications.
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Affiliation(s)
- Frank Biedermann
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, UK
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Tian F, Cziferszky M, Jiao D, Wahlström K, Geng J, Scherman OA. Peptide separation through a CB[8]-mediated supramolecular trap-and-release process. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:1387-1390. [PMID: 21194231 DOI: 10.1021/la104346k] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We demonstrate a supramolecular peptide separation approach by the selective immobilization of peptides bearing an N-terminal tryptophan onto a CB[8]-modified gold substrate, followed by electrochemical release. The CB[8]-stabilized heteroternary complexes were characterized by (1)H NMR, ESI-MS, UV/vis, and fluorescence spectroscopy and cyclic voltammetry. Micropatterned CB[8]-modified gold substrates were found to trap only the recognizable N-tryptophan-containing peptides from a peptide mixture that could be visualized as green peptide arrays under fluorescence microscopy. Subsequently, the bound peptides were released from the modified substrates by the controlled single-electron reduction of viologen. The fully reversible trap-and-release process was repeated for 13 cycles, and the cumulative release profile of the dye-peptide conjugate was monitored by fluorescence spectroscopy, indicating that no degradation occurred.
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Affiliation(s)
- Feng Tian
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, United Kingdom
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Sun S, Gao W, Liu F, Li F, Fan J, Peng X. Redox-induced Ru(bpy)(3)(2+)-methylviologen radical formation and its dimerization in cucurbit[8]uril. Phys Chem Chem Phys 2010; 13:570-5. [PMID: 21038069 DOI: 10.1039/c0cp00712a] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A redox-induced radical Ru(bpy)(3)(2+)-(CH(2))(n)-MV(+)˙ (n = 4, 7) and its dimerization in cucurbit[8]uril (CB[8]) have been observed concomitantly in aqueous solution, which depends heavily on the length of the carbon chain linkage, in the case of n = 4, the characteristic pattern for the radical dimer is predominating, while that for the radical becomes dominated for n = 7.
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Affiliation(s)
- Shiguo Sun
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 158 Zhongshan Road, Xigang District, Dalian 116012, China.
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Baek K, Kim Y, Kim H, Yoon M, Hwang I, Ko YH, Kim K. Unconventional U-shaped conformation of a bolaamphiphile embedded in a synthetic host. Chem Commun (Camb) 2010; 46:4091-3. [DOI: 10.1039/c0cc00752h] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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A novel 1:2 cucurbit[8]uril inclusion complex with N-phenylpiperazine hydrochloride. J INCL PHENOM MACRO 2009. [DOI: 10.1007/s10847-009-9571-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Trabolsi A, Hmadeh M, Khashab NM, Friedman DC, Belowich ME, Humbert N, Elhabiri M, Khatib HA, Albrecht-Gary AM, Stoddart JF. Redox-driven switching in pseudorotaxanes. NEW J CHEM 2009. [DOI: 10.1039/b819466a] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Hwang I, Ziganshina AY, Ko YH, Yun G, Kim K. A new three-way supramolecular switch based on redox-controlled interconversion of hetero- and homo-guest-pair inclusion inside a host molecule. Chem Commun (Camb) 2008:416-8. [PMID: 19137170 DOI: 10.1039/b818889k] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel three-way supramolecular switch based on the interconversion of hetero-guest-pair (D-A) and homo-guest-pair (D(2) or A(2)) inclusion inside cucurbit[8]uril is reported, which can be selectively controlled by chemical or electrochemical stimuli.
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Affiliation(s)
- Ilha Hwang
- National Creative Research Initiative Center for Smart Supramolecules (CSS) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 790-784, Korea
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Lee JW, Hwang I, Jeon WS, Ko YH, Sakamoto S, Yamaguchi K, Kim K. Synthetic Molecular Machine Based on Reversible End-to-Interior and End-to-End Loop Formation Triggered by Electrochemical Stimuli. Chem Asian J 2008; 3:1277-83. [DOI: 10.1002/asia.200800054] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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