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Akintola J, Abou Shaheen S, Wu Q, Schlenoff JB. Relative Strength of Polycation Adsorption on Oxide Surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 38316024 DOI: 10.1021/acs.langmuir.3c03641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
Polyelectrolyte adsorption onto surfaces is widely employed in water treatment and mining. However, little is known of the relative interaction strengths between surfaces and polymer. This fundamental property is assumed to be dominated by electrostatics, i.e., attractive interactions between opposite charges, which are set by the overall ionic strength ("salt concentration") of the solution, and charge densities of the surface and the polymer. A common, counterintuitive finding is a range of salt concentrations over which the amount of adsorbed polyelectrolyte increases as electrostatic interactions are tempered by the addition of salt. After an adsorption maximum, higher salt concentrations then produce the expected gradual desorption of polyelectrolyte. In this work, the salt response of the adsorption of the same narrow molecular weight distribution polycation, poly(N-methyl-4-vinylpyridinium), PM4VP, to a variety of surfaces was explored. Oxide powders for adsorption included Al2O3, SiO2, Fe2O3, Fe3O4, TiO2, ZnO, and CuO. Planar surfaces included silicon wafers, mica, calcium carbonate, and CaF2 single crystals. The PM4VP was radiolabeled with 14C so that sensitive, submonolayer amounts could be detected. The position of the peak maximum, or the lack of a peak, in response to added salt was used to rank the electrostatic component of the interaction. The importance of charge regulation, a shift in the surface pKa in response to solution species, was highlighted as a mechanism for adsorption on the "wrong" side of the isoelectric point and also as a factor contributing to the difficulty of reaching the totally desorbed state even at the highest salt concentrations.
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Affiliation(s)
- John Akintola
- Department of Chemistry and Biochemistry, The Florida State University, Tallahassee, Florida 32308-4390, United States
| | - Samir Abou Shaheen
- Department of Chemistry and Biochemistry, The Florida State University, Tallahassee, Florida 32308-4390, United States
| | - Qiang Wu
- Department of Industrial and Manufacturing Engineering, FAMU-FSU College of Engineering, Tallahassee, Florida 32310-6046, United States
| | - Joseph B Schlenoff
- Department of Chemistry and Biochemistry, The Florida State University, Tallahassee, Florida 32308-4390, United States
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Hamley IW, Hutchinson J, Kirkham S, Castelletto V, Kaur A, Reza M, Ruokolainen J. Nanosheet Formation by an Anionic Surfactant-like Peptide and Modulation of Self-Assembly through Ionic Complexation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:10387-10393. [PMID: 27636825 DOI: 10.1021/acs.langmuir.6b02180] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The surfactant-like peptide (Ala)6-(Asp) (A6D) is shown to self-assemble into ultrathin (3 nm thick) nanosheets in aqueous solution above a critical aggregation concentration. A combination of circular dichroism and FTIR spectroscopy and X-ray diffraction shows that the nanosheets comprise interdigitated bilayers of the peptide with β-sheet conformation. The self-assembly can be modulated by addition of hexamethylenediamine which is expected to interact with the anionic C terminus (and C-terminal D residue) of the peptide. Multiple ordered nanostructures can be accessed depending on the amount of added diamine. Nanosheet and bicontinuous network structures were observed using cryogenic-TEM and small-angle X-ray scattering. Addition of hexamethylenediamine at a sufficiently large molar ratio leads to disruption of the ordered nanostructure and the formation of a solution of A6D-diamine molecular complexes with highly charged end groups. The multiple acid-functionalized nanostructures that are accessible in this system are expected to have many applications in the fabrication of new nanomaterials.
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Affiliation(s)
- Ian W Hamley
- Department of Chemistry, University of Reading, Whiteknights , Reading RG6 6AD, U.K
| | - Jessica Hutchinson
- Department of Chemistry, University of Reading, Whiteknights , Reading RG6 6AD, U.K
| | - Steven Kirkham
- Department of Chemistry, University of Reading, Whiteknights , Reading RG6 6AD, U.K
| | - Valeria Castelletto
- Department of Chemistry, University of Reading, Whiteknights , Reading RG6 6AD, U.K
| | - Amanpreet Kaur
- Department of Chemistry, University of Reading, Whiteknights , Reading RG6 6AD, U.K
| | - Mehedi Reza
- Department of Applied Physics, Aalto University School of Science , P. O. Box 15100, FI-00076 Aalto, Finland
| | - Janne Ruokolainen
- Department of Applied Physics, Aalto University School of Science , P. O. Box 15100, FI-00076 Aalto, Finland
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Jones FM, Arnett EM. Thermodynamics of Ionization and Solution of Aliphatic Amines in Water. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/9780470171905.ch4] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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Anderegg G, Podder NG, Bläuenstein P, Hangartner M, Stünzi H. PYRIDINE DERIVATIVES AS COMPLEXING AGENTS X. THERMODYNAMICS OF COMPLEX FORMATION OF N, N'-BIS-(2-PYRIDYLMETHYL)-ETHYLENEDIAMINE AND OF TWO HIGHER HOMOLOGUES. J COORD CHEM 2006. [DOI: 10.1080/00958977508075911] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Herman GG, Goeminne AM. THERMOCHEMICAL STUDY OF THE STEPWISE PROTONATION OF 1,4-DIAZA-7-THIANONANE, 1,4-DIAZA-7-THIA-8,8 ' -DIMETHYLNONANE AND 1,5-DIAZA-8-THIANONANE, AND OF THEIR COMPLEX FORMATION WITH COPPER(II) AND NICKEL(II) IONS IN AQUEOUS SOLUTION. J COORD CHEM 2006. [DOI: 10.1080/00958977908076502] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Herman GG, Goeminne AM. THE THERMODYNAMICS OF PROTONATION OF SOME SULPHIDE CONTAINING DIAMINES IN AQUEOUS SOLUTION. J COORD CHEM 2006. [DOI: 10.1080/00958977708073042] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Herman GG, Goeminne AM, Eeckhaut Z. COMPLEX FORMATION BETWEEN 1-AZA-4-THIAPENTANE, 1,4-DIAZA-7-THIAOCTANE AND 2-HYDROXYETHYLTHIOETHYLAMINE, AND HYDROGEN IONS, COPPER(II) AND NICKEL(II) IONS IN AQUEOUS SOLUTION A Potentiometric and Calorimetric Investigation. J COORD CHEM 2006. [DOI: 10.1080/00958977708073038] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- G. G. Herman
- a Laboratory for General and Inorganic Chemistry , B. State University of Ghent , Belgium
| | - A. M. Goeminne
- a Laboratory for General and Inorganic Chemistry , B. State University of Ghent , Belgium
| | - Z. Eeckhaut
- a Laboratory for General and Inorganic Chemistry , B. State University of Ghent , Belgium
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Guedens WJ, Yperman J, Mullens J, Van Poucke LC. SILVER(I) COMPLEX FORMATION WITH 1,4-DIAMINOBUTANE AND 1,5-DIAMINOPENTANE: A POTENTIOMETRIC STUDY IN 1.0 MKN03. J COORD CHEM 2006. [DOI: 10.1080/00958979908024539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- W. J. Guedens
- a Department SBG , Limburgs Universitair Centrum , Universitaire Campus-gebaw D, B-3590 , Diepenbeek , Belgium
| | - J. Yperman
- a Department SBG , Limburgs Universitair Centrum , Universitaire Campus-gebaw D, B-3590 , Diepenbeek , Belgium
| | - J. Mullens
- b Laboratory of Inorganic and Physical Chemistry , Limburgs Universitair Centrum , Universitaire Campus-gebaw D, B-3590 , Diepenbeek , Belgium
| | - L. C. Van Poucke
- a Department SBG , Limburgs Universitair Centrum , Universitaire Campus-gebaw D, B-3590 , Diepenbeek , Belgium
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De Santis G, Fabbrizzi L, Licchelli M, Pallavicini P. Controlling the acidity of the carboxylic group by a ferrocene based redox switch. Inorganica Chim Acta 1994. [DOI: 10.1016/0020-1693(94)04052-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Preez JGHD, Shillington DP, Schanknecht SB. THE SYNTHESIS AND FUNCTIONING OF DIAMINE AND DIAMMONIUM EXTRACTANTS. SOLVENT EXTRACTION AND ION EXCHANGE 1989. [DOI: 10.1080/07360298908962342] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Kaneda K, Hiraki M, Sano K, Imanaka T, Teranishi S. An active catalyst for the water gas shift reaction using a rhodium carbonyl cluster—diamine system. ACTA ACUST UNITED AC 1980. [DOI: 10.1016/0304-5102(80)80010-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Thermodynamic and 13C n.m.r. data on the protonation of polymeric bases whose repeating units behave independently towards protonation. POLYMER 1980. [DOI: 10.1016/0032-3861(80)90171-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Macro inorganics V. Basicity and complexing ability of a new class of poly(amido-amines) with tertiary amino groups present both in the main chain and as side substituent. Inorganica Chim Acta 1980. [DOI: 10.1016/s0020-1693(00)88426-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Barbucci R, Barone V. A rationalization of the enthalpy of protonation of polyamines. J SOLUTION CHEM 1979. [DOI: 10.1007/bf00716002] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Tombeux J, Goeminne A, Eeckhaut Z. A potentiometric study of the silver(I) complexes of some sulfur-containing amines. ACTA ACUST UNITED AC 1977. [DOI: 10.1016/0022-1902(77)80121-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Barbucci R, Campbell M. An investigation of the structures of copper(II) polyamine complexes in aqueous solution by a combined evaluation of the EPR and thermodynamic parameters. Inorganica Chim Acta 1976. [DOI: 10.1016/s0020-1693(00)91700-6] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Dei A. Cobalt(II), nickel(II), copper(II) and zinc(II) complexes with an open-chain pentadentate nitrogen ligand. Inorganica Chim Acta 1975. [DOI: 10.1016/s0020-1693(00)89839-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Barbucci R. A thermodynamic investigation of the coordinating ability of N-(2-hydroxy ethyl)ethylenediamine towards copper(II) and nickel(II) in aqueous solution. Inorganica Chim Acta 1975. [DOI: 10.1016/s0020-1693(00)89846-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Ahuja IS, Singh R. 1,3-PROPANEDIAMINE, 1,4-BUTANEDIAMINE (PUTRESCINE) AND 1,5-PENTANEDIAMINE (CADAVERINE) COMPLEXES WITH ZINC(II), CADMIUM(II) AND MERCURY(II) HALIDES AND PSEUDOHALIDES. J COORD CHEM 1975. [DOI: 10.1080/00958977508075897] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Barbucci R, Fabbrizzi L, Paoletti P. Size of the chelate rings and stability of some transition metalII ion complexes with linear aliphatic triamines: 1,4,8-triazaoctane(2,3-tri). Inorganica Chim Acta 1973. [DOI: 10.1016/s0020-1693(00)94802-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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