A new kind of immobilized enzyme multilayer based on cationic and anionic interaction

Kong, Wei; Zhang, Xi; Gao, Manglai; Zhou, Hui; Li, Wei; Shen, Jieliang

doi:10.1002/marc.1994.030150503

Cited by 109 publications

(46 citation statements)

References 15 publications

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“…By using rigid ionic platelets for ESA, such as exfoliated montmorillonite, hectorite, graphite oxide, a-Zr(HPO 4 ) 2 , or niobates, interdiffusion and interface waviness of the adsorbed layers can be suppressed 195) to such an extent that Bragg peaks may be found in X-ray studies 119, 121, 150, 270, 277, 311-313, 315, 322-324, 435) . Similarly, Bragg peaks occasionally show up for ESAfilms made with aggregates of bolaamphiphiles 79,105,107,109) , or with nanoparticles if the spacer layer is thick enough to avoid overlap of the layers containing the particles 270,286,293,434) . Still, such reports are exceptional.…”

Section: The Structure Of Polymer Films Made By Esamentioning

confidence: 95%

“…Whereas intercalation studies have been successful [333][334][335]341) , molecular recognition and selective pairing of single strands is difficult to accomplish yet in ESA-films 26,116,333,338) . Also, a number of mixed protein-polyelectrolyte or protein-protein films 38,108,109,155,202,209,237,248,253,256,265,274,277,279,317,318,[344][345][346][347][348][349][350][351][352][353][354][355][356][357][358] have been prepared. Protein assembly by ESA does not require their chemical modification and should thus in general preserve the function of the proteins 108,355,358) .…”

Section: Polymers Suited For Esamentioning

confidence: 99%

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Ultrathin polymer coatings by complexation of polyelectrolytes at interfaces: suitable materials, structure and properties

Bertrand

Jonas

Laschewsky³

et al. 2000

Macromol. Rapid Commun.

1,168

1,184

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A bit of historyThe key role of surfaces for many material properties as well as for many biological processes has been recognized now. Therefore, new strategies aim at the tailoring of the material's surface only -or of a thin surface layer, respectively -, while preserving the bulk properties of the underlying support. Particular emphasis has been given to the surface modification by polymers, in an attempt to extend the known versatility of polymer bulk materials to ultrathin films and coatings, and to prepare bulk-surface composite materials. The self-organization of polymers has been increasingly explored for the preparation of well-defined surfaces and interfaces in recent years, extending the use of the established methods of low molar mass compounds (for comparative reviews, see ref. 1-3)). With such techniques, polymer films are formed spontaneously on substrates, due to balanced interactions between substrate, polymer (or its precursor) and medium. Typically, very thin, often monomolecular layers are produced. Repetitive deposition steps provide a precise control over the total thickness of the coatings, in the range from a few angstroms up to the micrometer range. Moreover, the step-by-step procedures allow for a fine structuring in the third dimension. In addition to the preparation of uniform and homogeneous coatings, gratings, gradients or steps of defined height in molecular dimensions can be easily constructed.The most recent of the self-organization techniques is the alternating physisorption of oppositely charged polyelectrolytes, the so-called "layer-by-layer" method or "electrostatic self-assembly" (ESA) [3][4][5][6][7][8][9][10] . Although some early, singular studies of self-assembly by alternating adsorption of oppositely charged polyions are reported [11][12][13] , a practical method for ESA was developed Feature Article: The article presents the state-of-the-art of alternating physisorption of oppositely charged polyelectrolytes, the so-called "layer-by-layer" method or "electrostatic self-assembly" (ESA), for the preparation of thin polymer coatings. In comparison to other, more established self-organization techniques, this recent method is distinguished by its simplicity, versatility, and speed. In particular, the tendency for self-healing is unique. Emphasis is given to the role of the molecular structure of the polyelectrolytes, and to the nature of the support. Also, various parameters for the preparation of multilayer films are highlighted, which are very important due to the kinetic control of the build-up process. The structure of the resulting coatings, their quality and stability, chemical reactions in the films, and potential applications are discussed.Macromol. Rapid Commun. 21, No. 7

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Section: The Structure Of Polymer Films Made By Esamentioning

confidence: 95%

Section: Polymers Suited For Esamentioning

confidence: 99%

Ultrathin polymer coatings by complexation of polyelectrolytes at interfaces: suitable materials, structure and properties

Bertrand

Jonas

Laschewsky³

et al. 2000

Macromol. Rapid Commun.

1,168

1,184

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“…The incorporation of proteins by alternative electrostatic adsorption was realized for a cationic bispyridinium salt and glucose isomerase. [17] The glucose isomerase intercalated between bispyridinium salt still kept its activity in the multilayer. Fabrication of ultrathin films containing bienzyme of glucose oxidase and glucoamylase based on electrostatic attraction was also achieved on the surface of a gold electrode and its application as a bienzyme maltose sensor was demonstrated (Fig.…”

Section: Functional Assembliesmentioning

confidence: 98%

Self-Assembled Ultrathin Films: From Layered Nanoarchitectures to Functional Assemblies

Zhang

Shen²

1999

Adv. Mater.

Self Cite

156

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“…It is not limited to polyelectrolyte/polyelectrolyte systems. Almost any type of nanometric charged species, including inorganic molecular clusters [44,45], nanoparticles (NPs) [46], nanotubes and nanowires [47,48], nanoplates [49,50], organic dyes [51], dendrimers [52], porphyrins [53], biological polysaccharides [54,55], polypeptides [56,57], nucleic acids and DNA [58], proteins [59][60][61][62] and viruses [63] can be successfully used as components to prepare LbL films. The driving force of LbL films formation is not limited to electrostatic interactions.…”

Section: Introductionmentioning

confidence: 99%

Nanostructured multilayer polyelectrolyte films with silver nanoparticles as antibacterial coatings

Kruk

Szczepanowicz

Kręgiel

et al. 2016

Colloids and Surfaces B: Biointerfaces

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A new kind of immobilized enzyme multilayer based on cationic and anionic interaction

Cited by 109 publications

References 15 publications

Ultrathin polymer coatings by complexation of polyelectrolytes at interfaces: suitable materials, structure and properties

Ultrathin polymer coatings by complexation of polyelectrolytes at interfaces: suitable materials, structure and properties

Self-Assembled Ultrathin Films: From Layered Nanoarchitectures to Functional Assemblies

Nanostructured multilayer polyelectrolyte films with silver nanoparticles as antibacterial coatings

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