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Kubies, Dana; Machová, Luďka; Brynda, Eduard; Lukáš, J.; Rypáček, František

doi:10.1023/a:1022019813078

Cited by 16 publications

(22 citation statements)

References 6 publications

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“…Considering the twisting of polymer backbones, these arms had the similar length to one part of BBCP, either the PS part or the PLA part described previously. It has been reported that both PS and PLA are able to form the spreading phase at the air/water interface. Therefore, to identify which part of BBCP composed the dot-like domain and the other formed the spreading phases adjacent to it, thermal annealing study was performed.…”

Section: Resultsmentioning

confidence: 99%

“…With the increase in surface pressure (i.e., in the liquid state region ii in Figure a), there was a strong elastic repulsive force between the PLA parts; this is analogous to the behavior of spreading phase in amphiphilic block copolymers. , As a result, a continuous pressure increase was observed in this region. However, due to the intrinsic hydrophobic nature of PLA, it can hardly be expelled into the water subphase to form brush-like morphology as commonly seen in amphiphilic block copolymers. Thus, PLA arms that surrounded the PS domain had to rearrange themselves to release the elastic stress (Figure b).…”

Section: Resultsmentioning

confidence: 99%

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Polystyrene−Polylactide Bottlebrush Block Copolymer at the Air/Water Interface

et al. 2009

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Hydrophobic ultrahigh molecular weight bottlebrush block copolymer and linear block copolymer of polystyrene−polylactide (PS−PLA) were shown to be capable of forming Langmuir monolayers and exhibiting unique assembly behaviors at the air/water interface, which cannot be addressed by the classic theory of Langmuir monolayer of amphiphilic copolymers. New models were proposed to illustrate these intriguing surface behaviors. The self-assembled structure of Langmuir monolayer of bottlebrush block copolymer was determined by a combination of AFM measurement, thermal annealing, and enzymatic degradation experiment. To the best of our knowledge, this is among few studies on hydrophobic block copolymers at the air/water interface. As such, it not only complements the well-known models of self-assembly of amphiphilic block copolymers at the air/water interface but also expands the use of Langmuir−Blodgett (LB) technique to hydrophobic block copolymers.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Polystyrene−Polylactide Bottlebrush Block Copolymer at the Air/Water Interface

et al. 2009

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“…The contact angle of the modified surface varied with the feed composition [163]. Other functional groups such as hydroxyl, carboxyl and amide groups, have also been introduced onto PLLA surfaces, using the photo-induced grafting method, by grafting hydroxyethyl methacrylate, methacrylic acid (MAA) or acrylamide, respectively [164].…”

Section: Photo-induced Grafting Methodsmentioning

confidence: 99%

Strategies for the chemical and biological functionalization of scaffolds for cardiac tissue engineering: a review

Tallawi

Rosellini

Barbani

et al. 2015

J. R. Soc. Interface.

296

208

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The development of biomaterials for cardiac tissue engineering (CTE) is challenging, primarily owing to the requirement of achieving a surface with favourable characteristics that enhances cell attachment and maturation. The biomaterial surface plays a crucial role as it forms the interface between the scaffold (or cardiac patch) and the cells. In the field of CTE, synthetic polymers ( polyglycerol sebacate, polyethylene glycol, polyglycolic acid, poly-L-lactide, polyvinyl alcohol, polycaprolactone, polyurethanes and poly(N-isopropylacrylamide)) have been proven to exhibit suitable biodegradable and mechanical properties. Despite the fact that they show the required biocompatible behaviour, most synthetic polymers exhibit poor cell attachment capability. These synthetic polymers are mostly hydrophobic and lack cell recognition sites, limiting their application. Therefore, biofunctionalization of these biomaterials to enhance cell attachment and cell material interaction is being widely investigated. There are numerous approaches for functionalizing a material, which can be classified as mechanical, physical, chemical and biological. In this review, recent studies reported in the literature to functionalize scaffolds in the context of CTE, are discussed. Surface, morphological, chemical and biological modifications are introduced and the results of novel promising strategies and techniques are discussed.

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“…Such modification can be investigated by applying the Langmuir monolayer approach. For example, the surfaces of a spin-casted PLA film, functionalized by LB-layers of amphiphilic AB or ABA block copolymers of PLA as A block and either PEO, a-methoxy-v-hydroxy PEO, a-carboxy-v-hydroxy PEO or poly(Laspartic acid) as B block, improve the protein and cell adhesion [157]. The simulation of the biomolecule impact, such as proteins or enzymes, on a pre-existing synthetic polymer layer is discussed in this section on the microscopic and macroscopic level.…”

Section: Polymer-protein Interactions At the Air-water Interfacementioning

confidence: 99%

Evaluating polymeric biomaterial–environment interfaces by Langmuir monolayer techniques

Schöne

Roch

Schulz

et al. 2017

J. R. Soc. Interface.

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Polymeric biomaterials are of specific relevance in medical and pharmaceutical applications due to their wide range of tailorable properties and functionalities. The knowledge about interactions of biomaterials with their biological environment is of crucial importance for developing highly sophisticated medical devices. To achieve optimal performance, a description at the molecular level is required to gain better understanding about the surface of synthetic materials for tailoring their properties. This is still challenging and requires the comprehensive characterization of morphological structures, polymer chain arrangements and degradation behaviour. The review discusses selected aspects for evaluating polymeric biomaterial-environment interfaces by Langmuir monolayer methods as powerful techniques for studying interfacial properties, such as morphological and degradation processes. The combination of spectroscopic, microscopic and scattering methods with the Langmuir techniques adapted to polymers can substantially improve the understanding of their behaviour.

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Untitled

Cited by 16 publications

References 6 publications

Polystyrene−Polylactide Bottlebrush Block Copolymer at the Air/Water Interface

Polystyrene−Polylactide Bottlebrush Block Copolymer at the Air/Water Interface

Strategies for the chemical and biological functionalization of scaffolds for cardiac tissue engineering: a review

Evaluating polymeric biomaterial–environment interfaces by Langmuir monolayer techniques

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