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Ali B, McCormac T, Maccato C, Barreca D, Carraro G. Multilayer assemblies of a Cu-phthalocyanine with Dawson type polyoxometalates (POMs) for the electrocatalytic reduction of phosphate. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2019.113770] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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2
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Microstructured Optical Waveguide-Based Endoscopic Probe Coated with Silica Submicron Particles. MATERIALS 2019; 12:ma12091424. [PMID: 31052408 PMCID: PMC6539507 DOI: 10.3390/ma12091424] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 04/24/2019] [Accepted: 04/28/2019] [Indexed: 11/17/2022]
Abstract
Microstructured optical waveguides (MOW) are of great interest for chemical and biological sensing. Due to the high overlap between a guiding light mode and an analyte filling of one or several fiber capillaries, such systems are able to provide strong sensitivity with respect to variations in the refractive index and the thickness of filling materials. Here, we introduce a novel type of functionalized MOWs whose capillaries are coated by a layer-by-layer (LBL) approach, enabling the alternate deposition of silica particles (SiO2) at different diameters—300 nm, 420 nm, and 900 nm—and layers of poly(diallyldimethylammonium chloride) (PDDA). We demonstrate up to three covering bilayers consisting of 300-nm silica particles. Modifications in the MOW transmission spectrum induced by coating are measured and analyzed. The proposed technique of MOW functionalization allows one to reach novel sensing capabilities, including an increase in the effective sensing area and the provision of a convenient scaffold for the attachment of long molecules such as proteins.
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Ma W, Zhang Y, Li F, Kou D, Lutkenhaus JL. Layer-by-Layer Assembly and Electrochemical Study of Alizarin Red S-Based Thin Films. Polymers (Basel) 2019; 11:E165. [PMID: 30960149 PMCID: PMC6401759 DOI: 10.3390/polym11010165] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 12/21/2018] [Accepted: 01/02/2019] [Indexed: 12/23/2022] Open
Abstract
Electroactive organic dyes incorporated in layer-by-layer (LbL) assemblies are of great interest for a variety of applications. In this paper, Alizarin Red S (ARS), an electroactive anthraquinone dye, is employed to construct LbL (BPEI/ARS)n films with branched poly(ethylene imine) (BPEI) as the complementary polymer. Unconventional LbL methods, including co-adsorption of ARS and poly(4-styrene sulfonate) (PSS) with BPEI to assemble (BPEI/(ARS+PSS))n, as well as pre-complexation of ARS with BPEI and further assembly with PSS to fabricate ((BPEI+ARS)/PSS)n, are designed for investigation and comparison. Film growth patterns, UV⁻Vis spectra and surface morphology of the three types of LbL assemblies are measured and compared to reveal the formation mechanism of the LbL films. Electrochemical properties including cyclic voltammetry and spectroelectrochemistry of (BPEI/ARS)120, (BPEI/(ARS+PSS))120 and ((BPEI+ARS)/PSS)120 films are studied, and the results show a slight color change due to the redox reaction of ARS. ((BPEI+ARS)/PSS)120 shows the best stability among the three samples. It is concluded that the manner of dye- incorporation has a great effect on the electrochemical properties of the resultant films.
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Affiliation(s)
- Wei Ma
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, Liaoning 116023, China.
| | - Yanpu Zhang
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA.
| | - Fei Li
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA.
| | - Donghui Kou
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, Liaoning 116023, China.
| | - Jodie L Lutkenhaus
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA.
- Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843, USA.
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Zhang Y, Chen C, Wang J, Zhang L. Polysaccharide-based polyelectrolytes hollow microcapsules constructed by layer-by-layer technique. Carbohydr Polym 2013; 96:528-35. [DOI: 10.1016/j.carbpol.2013.04.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2012] [Revised: 03/30/2013] [Accepted: 04/10/2013] [Indexed: 10/26/2022]
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Naboka O, Sanz-Velasco A, Lundgren P, Enoksson P, Gatenholm P. Cobalt (II) chloride promoted formation of honeycomb patterned cellulose acetate films. J Colloid Interface Sci 2012; 367:485-93. [DOI: 10.1016/j.jcis.2011.10.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 10/11/2011] [Accepted: 10/12/2011] [Indexed: 11/30/2022]
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Shang J, Zhao F, Zhu T, Li J. Photocatalytic degradation of rhodamine B by dye-sensitized TiO2 under visible-light irradiation. Sci China Chem 2011. [DOI: 10.1007/s11426-010-4168-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Andreev VN, Ovsyannikova EV, Alpatova NM. Immobilization of phthalocyanines in conducting polymers. Polyaniline-copper tetrasulfophthalocyanine. RUSS J ELECTROCHEM+ 2010. [DOI: 10.1134/s1023193510090120] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Park JW, Ahn JS, Lee JH, Bhak G, Jung S, Paik SR. Amyloid Fibrillar Meshwork Formation of Iron-Induced Oligomeric Species of Aβ40 with Phthalocyanine Tetrasulfonate and Its Toxic Consequences. Chembiochem 2008; 9:2602-5. [DOI: 10.1002/cbic.200800343] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Hong C, Yuan R, Chai Y, Zhuo Y. Biomolecule-Doped Organic/Inorganic Hybrid Nanocomposite Film for Label-Free Electrochemical Immunoassay of α-1-Fetoprotein. ELECTROANAL 2008. [DOI: 10.1002/elan.200704137] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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10
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Amiri M, Shahrokhian S, Psillakis E, Marken F. Electrostatic accumulation and determination of triclosan in ultrathin carbon nanoparticle composite film electrodes. Anal Chim Acta 2007; 593:117-22. [PMID: 17531832 DOI: 10.1016/j.aca.2007.04.042] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2007] [Revised: 04/18/2007] [Accepted: 04/19/2007] [Indexed: 10/23/2022]
Abstract
A film composed of carbon nanoparticles and poly(diallyldimethylammonium chloride) or CNP-PDDAC is formed in a layer-by-layer deposition process at tin-doped indium oxide (ITO) substrates. Excess positive binding sites within this film in aqueous phosphate buffer at pH 9.5 are quantified by adsorption of iron(III)phthalocyanine tetrasulfonate and indigo carmine. Both anionic redox systems bind with Langmuirian characteristics (K approximately 10(5) mol(-1) dm3) and show electrochemical reactivity throughout the film at different thicknesses. Therefore, the electrical conductivity in CNP-PDDAC films is good and the positive binding sites are approximately 140 pmol cm(-2) per layer. Structural instability of the CNP-PDDAC film in the presence of high concentrations of iron(III)phthalocyanine tetrasulfonate or indigo carmine is observed. Triclosan, a widely used anti-bacterial and anti-fungal agent, exists in aqueous media at pH 9.5 as a negatively charged chlorinated poly-aromatic phenol. Due to the negative charge, triclosan is readily accumulated into CNP-PDDAC films with an efficiency consistent with that expected for simple electrostatic interaction with the cationic binding sites. Oxidation of bound triclosan occurs at 0.6 V versus SCE in a chemically irreversible process. The CNP-PDDAC film electrode is renewed by rinsing in organic solvent and the triclosan oxidation response is shown to correlate with the triclosan concentration in solution from 0.5 to 50 microM. Applications of the CNP-PDDAC film electrode (or improved versions of it) in analysis or in anodic extraction are proposed.
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Affiliation(s)
- Mandana Amiri
- Department of Chemistry, Sharif University of Technology, Teheran, Iran
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Siqueira JR, Gasparotto LHS, Crespilho FN, Carvalho AJF, Zucolotto V, Oliveira ON. Physicochemical Properties and Sensing Ability of Metallophthalocyanines/Chitosan Nanocomposites. J Phys Chem B 2006; 110:22690-4. [PMID: 17092017 DOI: 10.1021/jp0649089] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Electroactive nanostructured films of chitosan (Ch) and tetrasulfonated metallophthalocyanines containing nickel (NiTsPc), copper (CuTsPc), and iron (FeTsPc) were produced via the electrostatic layer-by-layer (LbL) technique. The multilayer formation was monitored with UV-vis spectroscopy by measuring the increase of the Q-band absorption from metallophthalocyanines. Results from transmission and reflection infrared spectroscopy suggested specific interactions between SO(3)(-) groups from metallophthalocyanines and NH(3)(+) from chitosan. The electroactive multilayered films assembled onto an ITO electrode were characterized by cyclic voltammetry, with Ch/NiTsPc films showing higher stability and well-defined voltammograms displaying reversible redox peaks at 0.80 and 0.75 V. These films could be used to detect dopamine (DA) in the concentration range from 5.0 x 10(-6) to 1.5 x 10(-4) mol L(-1). Also, ITO-(Ch/NiTsPc)(n)() electrodes showed higher electrocatalytic activity for DA oxidation when compared with a bare ITO electrode. On the other hand, only the Ch/FeTsPc and Ch/CuTsPc modified electrodes could distinguish between DA and ascorbic acid. These results demonstrate that versatile electrodes can be prepared by incorporation of different metallophthalocyanine molecules in LbL films, which may be used in bioanalytical applications.
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Affiliation(s)
- José R Siqueira
- Universidade de São Paulo, IFSC, CP 369, São Carlos, SP, 13560-970, Brazil
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Miscoria SA, Desbrieres J, Barrera GD, Labbé P, Rivas GA. Glucose biosensor based on the layer-by-layer self-assembling of glucose oxidase and chitosan derivatives on a thiolated gold surface. Anal Chim Acta 2006; 578:137-44. [PMID: 17723705 DOI: 10.1016/j.aca.2006.06.060] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2006] [Revised: 06/26/2006] [Accepted: 06/28/2006] [Indexed: 01/21/2023]
Abstract
The work proposed here deals with the design and characterization of biorecognition layers for the amperometric glucose determination based on the self-assembling of new chitosan derivatives, Nafion and glucose oxidase onto thiolated gold electrodes. The supramolecular multistructure is obtained by deposition of a layer of chitosan derivative (quaternized or hydrophobic) onto the gold surface modified with the sodium salt of 3-mercapto-1-propansulfonic acid, followed by the deposition of a layer of Nafion (as anti-interference barrier) and by the alternate deposition of the chitosan derivative and glucose oxidase (as biocatalytic layer). The influence of the deposition time and concentration of polyelectrolytes, organization and number of layers, and nature of the chitosan derivative on the sensitivity and selectivity of the bioelectrode is examined and optimized in order to obtain a rational design of the biosensor. The system is studied electrochemically from the oxidation at 0.700 V of the hydrogen peroxide enzymatically generated using gold as substrate, and spectrophotometrically from the protein absorption at 277 nm using quartz as substrate. The selected biosensor containing five quaternized chitosan/glucose oxidase bilayers exhibits very good analytical performance with a sensitive ((4.9+/-0.2) x 10(2) nA mM(-1)) and highly selective response (0% interference for maximum physiological levels of ascorbic acid and uric acid), demonstrating that the alternate electrostatic adsorption of conveniently selected polyelectrolytes allows noticeable improvements in the selectivity and sensitivity of a biosensor.
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Affiliation(s)
- Silvia A Miscoria
- Departamento de Química, Facultad de Ciencias Naturales, Universidad Nacional de la Patagonia San Juan Bosco, Ciudad Universitaria, Km. 4, 9000 Comodoro Rivadavia, Chubut, Argentina
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Kosbar L, Srinivasan C, Afzali A, Graham T, Copel M, Krusin-Elbaum L. Self-assembled multilayers of transition-metal-terpyridinyl complexes; formation, and characterization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2006; 22:7631-8. [PMID: 16922543 DOI: 10.1021/la051922o] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Layer-by-layer (LBL) growth of terpyridinyl ligands with a range of metal ions is reported. Monolayers of mercaptophenyl terpyridine on gold were used to initiate LBL assembly by complexing the first layer of metal ions. Tetra-2-pyridinylpyrazine was used as a linking ligand between subsequent metal ion layers. The assembly of the terpyridines with 21 different metals was evaluated using UV absorbance spectroscopy, variable-angle spectroscopic ellipsometry, and atomic force microscopy. Successful LBL growth appears to depend on the ionic radius of the metal ion. Metals that formed multilayered LBL structures were primarily limited to a small range of effective ionic radii between 66 and 73 pm. Metal ions with smaller ionic radii usually formed initial layers but seldom exhibited consistent LBL growth, while ions with radii larger than 73 nm generally did not demonstrate any evidence of LBL growth.
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Affiliation(s)
- Laura Kosbar
- IBM T.J. Watson Research Center, Yorktown Heights, New York 10598, USA.
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Chen S, Yuan R, Chai Y, Xu L, Wang N, Li X, Zhang L. Amperometric Hydrogen Peroxide Biosensor Based on the Immobilization of Horseradish Peroxidase (HRP) on the Layer-by-Layer Assembly Films of Gold Colloidal Nanoparticles and Toluidine Blue. ELECTROANAL 2006. [DOI: 10.1002/elan.200503424] [Citation(s) in RCA: 59] [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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15
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Ding H, Zhang X, Kumar Ram M, Nicolini C. Ultrathin films of tetrasulfonated copper phthalocyanine-capped titanium dioxide nanoparticles: Fabrication, characterization, and photovoltaic effect. J Colloid Interface Sci 2005; 290:166-71. [PMID: 15964010 DOI: 10.1016/j.jcis.2005.04.052] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2005] [Revised: 04/11/2005] [Accepted: 04/13/2005] [Indexed: 11/24/2022]
Abstract
Tetrasulfonated copper phthalocyanine (CuTsPc)-capped TiO2 nanoparticle ultrathin films were fabricated by a layer-by-layer (LBL) self-assembly technique. Alternating bilayer structures were formed by consecutive adsorption of CuTsPc-capped TiO2 nanoparticles with poly(diallyldimethylammonium chloride). Optical and electrical measurements were carried out to characterize the CuTsPc-capped TiO2 nanoparticle ultrathin films. Optical measurements revealed uniform deposition. The surface morphology of such bilayer films showed a granular morphology similar to other classes of LBL films. Electrical measurements revealed an abnormal phenomenon under white light illumination. Electrochemical and photoelectrochemical measurements on such a bilayer system were carried out to elucidate the electron transport processes and the photovoltaic effect.
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Affiliation(s)
- Hanming Ding
- Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, People's Republic of China.
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Fay N, Dempsey E, McCormac T. Assembly, electrochemical characterisation and electrocatalytic ability of multilayer films based on [Fe(bpy)3]2+, and the Dawson heteropolyanion, [P2W18O62]6−. J Electroanal Chem (Lausanne) 2005. [DOI: 10.1016/j.jelechem.2004.07.038] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Tokuhisa H, Hammond PT. Nonlithographic micro- and nanopatterning of TiO2 using polymer stamped molecular templates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2004; 20:1436-1441. [PMID: 15803731 DOI: 10.1021/la030191u] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The polymer-on-polymer stamping technique was used to template patterned TiO2 onto polymer thin films. Polystyrene-b-polyvinyl pyridine diblock copolymer (PS-b-PVP) was stamped on a layer-by-layer assembled thin film of poly(allylamine hydrochloride) and poly(acrylic acid). After rinsing the surface with a good solvent for the block copolymer, an adsorbed PS-b-PVP monolayer remained on the polyelectrolyte film, resulting in a pattern of alternating hydrophobic and carboxylic acid containing hydrophilic regions. The surface was used as a template for the selective deposition of TiO2 on the multilayer surface, using an acid-catalyzed hydrolysis of(NH4)2TiF6. Using this novel approach, we have successfully demonstrated the patterning of TiO2 film on a polyelectrolyte multilayer. Finally, nanoscale features consisting of 200 nm lines alternating with a 350 nm period was accomplished. This paper represents the first such attempt to create an all-polymer nonlithographic template for the directed deposition of TiO2 or related metal oxides; this technique, which utilizes the versatile polyelectrolyte multilayer process, enables the construction of complex polymer-inorganic microstructures suitable for electrooptical and photonic applications.
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Affiliation(s)
- Hiroaki Tokuhisa
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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Zucolotto V, Ferreira M, Cordeiro MR, Constantino CJL, Balogh DT, Zanatta AR, Moreira WC, Oliveira ON. Unusual Interactions Binding Iron Tetrasulfonated Phthalocyanine and Poly(allylamine hydrochloride) in Layer-by-Layer Films. J Phys Chem B 2003. [DOI: 10.1021/jp027573d] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Photovoltaic effects in substituted metal-free and metallic sulfophthalocyanines in the photoelectrochemical cell. J Mol Struct 2001. [DOI: 10.1016/s0022-2860(01)00525-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Kekkonen J, Lattu H, Stenius P. Adsorption Kinetics of Complexes Formed by Oppositely Charged Polyelectrolytes. J Colloid Interface Sci 2001; 234:384-392. [PMID: 11161525 DOI: 10.1006/jcis.2000.7326] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The objective of this study is to gain an understanding of the kinetics of adsorption of complexes formed in aqueous solution by oppositely charged polyelectrolytes. The properties of the complexes were characterized by means of dynamic light scattering and electrophoretic mobility and the reaction stoichiometry was studied by titration. The stoichiometry in the complexes depends on the polymer weight ratio w(p). Their point of zero charge (pzc) is shifted toward lower w(p) when simple cations of higher valence are added to the solution. The adsorption kinetics of the complexes on silica was studied by stagnation point reflectometry. The sign of charge of the complexes as well as the valence and concentration of simple cations governs the occurrence of adsorption in the electrolytes studied. Five different types of adsorption kinetics were found. Copyright 2001 Academic Press.
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Affiliation(s)
- Juha Kekkonen
- Laboratory of Forest Products Chemistry, Helsinki University of Technology, Espoo, 02015 HUT, Finland
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Casson JL, McBranch DW, Robinson JM, Wang HL, Roberts JB, Chiarelli PA, Johal MS. Reversal of Interfacial Dipole Orientation in Polyelectrolyte Superlattices Due to Polycationic Layers. J Phys Chem B 2000. [DOI: 10.1021/jp0029616] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | - Hsing-Lin Wang
- Biosciences Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
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MAloney RA, Goh MC. In Situ Investigations of Polyelectrolyte Film Formation by Second Harmonic Generation. J Phys Chem B 1999. [DOI: 10.1021/jp9925740] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Richard A. MAloney
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada M5S 3H6
| | - M. Cynthia Goh
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada M5S 3H6
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