Antioxidant Properties of Layer-by-Layer films on the Basis of Tannic Acid

Shutava, Tatsiana G.; Malcolm, David; Agabekov, V. E.; Yuri, Michihiro

doi:10.1246/cl.2006.1144

Cited by 36 publications

(28 citation statements)

References 13 publications

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“…For gelatin/EGCG films, unlike that for tannic acid/polyallylamine multilayers [32,33], the value of W increases with increasing number of bilayers in the film and no plato is observed on the graph (Fig. 3b).…”

Section: Interaction Of Abts +• With Gelatin/egcg Multilayersmentioning

confidence: 95%

See 1 more Smart Citation

(−)-Epigallocatechin gallate/gelatin layer-by-layer assembled films and microcapsules

Shutava

Balkundi

Lvov

2009

Journal of Colloid and Interface Science

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107

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Section: Interaction Of Abts +• With Gelatin/egcg Multilayersmentioning

confidence: 95%

“…Polyphenols incorporated in LbL constructions can serve as a protective element against reactive free radical species in oxidizing media introducing additional antioxidant properties to the assemblies [32,33], thus prolonging their life-time and enhancing effectiveness of encapsulated substances.…”

Section: Introductionmentioning

confidence: 99%

(−)-Epigallocatechin gallate/gelatin layer-by-layer assembled films and microcapsules

Shutava

Balkundi

Lvov

2009

Journal of Colloid and Interface Science

Self Cite

107

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“…19,20 Carboxylated poly(amidoamine) dendrimer and tannic acid have also been used as components of hydrogenbonding LbL films. [21][22][23] Hydrogen-bonding LbL films are constructed by an alternate deposition of hydrogen donor and acceptor polymers from aqueous solutions, in a similar manner as that for the preparation of electrostatic bonded LbL films. A unique feature of hydrogen-bonded LbL films is their pH-dependent instability, in contrast to the high stability of electrostatic bonded LbL films.…”

Section: ·2 Hydrogen Bonding Lbl Fimsmentioning

confidence: 99%

Layer-by-layer Thin Films and Microcapsules for Biosensors and Controlled Release

2012

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We present an overview of the preparation and properties of layer-by-layer (LbL) deposited thin films and microcapsules in relation to their use in the development of biosensors and controlled release systems. Enzyme biosensors can be constructed by immobilizing enzymes on the surface of electrodes by LbL deposition without loss of their catalytic activity. In addition to synthetic polymers, binding proteins, such as avidin and lectin, are also used for constructing LbL films through avidin-biotin and lectin-sugar interactions. The performance characteristics of LbL film-based biosensors can be tuned by controlling the number of layers and by the choice of film components. The permeability of polyelectrolyte LbL films to ions and molecules is discussed in relation to the use of the films for eliminating interference in biosensors. The possible use of polysaccharide LbL film-coated electrodes for the construction of biosensors is highlighted, and examples of LbL film-and microcapsule-based optical sensors are described. We then focus on the use of LbL films and microcapsules as vehicles for controlled release, in particular on recent progress in the controlled release of insulin from LbL films and microcapsules. LbL films composed of insulin and polymers are sensitive to environmental pH, and release insulin in response to pH changes, suggesting that insulin LbL films can be used in the development of orally administered insulin. The construction of glucose-dependent insulin release systems using LbL insulin microcapsules functionalized with phenylboronic acid, lectin, and glucose oxidase is also examined.

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“…Furthermore, this antioxidant active packaging coating derives activity from free radical scavenging in the packaging headspace, thus not requiring direct contact with the food [93][94][95]. Shutava et al imparted free radical scavenging properties on glass slides via layer-by-layer deposition of tannic acid and poly(allylamine hydrochloride) and found that 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) radical scavenging activity per mole immobilized tannic acid decreased with increasing number of bilayers, most likely due to inability of ABTS to diffuse through bilayers [76]. However, increasing the number of bilayers did result in a linear increase in overall scavenging activity (mol ABTS cm −2 ).…”

Section: Antioxidantmentioning

confidence: 99%

Active Packaging Coatings

et al. 2015

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Active food packaging involves the packaging of foods with materials that provide an enhanced functionality, such as antimicrobial, antioxidant or biocatalytic functions. This can be achieved through the incorporation of active compounds into the matrix of the commonly used packaging materials, or by the application of coatings with the corresponding functionality through surface modification. The latter option offers the advantage of preserving the packaging materials' bulk properties nearly intact. Herein, different coating technologies like embedding for controlled release, immobilization, layer-by-layer deposition, and photografting are explained and their potential application for active food packaging is explored and discussed.

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Antioxidant Properties of Layer-by-Layer films on the Basis of Tannic Acid

Cited by 36 publications

References 13 publications

(−)-Epigallocatechin gallate/gelatin layer-by-layer assembled films and microcapsules

(−)-Epigallocatechin gallate/gelatin layer-by-layer assembled films and microcapsules

Layer-by-layer Thin Films and Microcapsules for Biosensors and Controlled Release

Active Packaging Coatings

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