Temperature-responsive grafted polymer brushes obtained from renewable sources with potential application as substrates for tissue engineering

Raczkowska, Joanna; Stetsyshyn, Yurij; Awsiuk, Kamil; Lekka, Małgorzata; Marzec, M.; Harhay, Khrystyna; Ohar, Halyna; Остапів, Д. Д.; Sharan, Mykola; Yaremchuk, Iryna; Bodnar, Yulia; Budkowski, Andrzej

doi:10.1016/j.apsusc.2017.03.001

Cited by 29 publications

(26 citation statements)

References 53 publications

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“…The smaller values of autocorrelation length (Sal) of coated hair than untreated and uncoated hair suggest that the nanoparticle sizes are finer than the bare hair cuticles. For a more detailed characterization of the naturally wax-coated hair of capybara and wax-free guinea pig and the same samples after the nanoclay coating, we subjected the hair samples to AFM investigation, which allows for simultaneous imaging and mechanical properties mapping [29][30][31] The topography, non-specific adhesion, and Young's modulus images of pristine unwaxed capybara hair compared to that of a guinea pig are given in Figure S6. One can see that the cuticle scales in capybara hair are fully covered by the uneven, thick wax layer, which, apart from making the surface non-uniform in height renders it uniform for tip adhesion and surface stiffness.…”

Section: Surface Texture Of Halloysite Coated Hair Cuticlesmentioning

confidence: 99%

Clay Nanotube Immobilization on Animal Hair for Sustained Anti-Lice Protection

et al. 2021

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Topical administration of drugs is required for the treatment of parasitic diseases and insect infestations; therefore, fabrication of nanoscale drug carriers for effective insecticide topical delivery is needed. Here we report the enhanced immobilization of halloysite tubule nanoclay onto semiaquatic capybaras which have hydrophobic hair surfaces as compared to their close relatives, land-dwelling guinea pigs, and other agricultural livestock. The hair surface of mammals varies in hydrophobicity having a cortex surrounded by cuticles. Spontaneous 1–2 µm thick halloysite hair coverages on the semi-aquatic rodent capybara, non-aquatic rodent guinea pig, and farm goats were compared. The best coating was found for capybara due to the elevated 5 wt% wax content. As a result, we suggest hair pretreatment with diluted wax for enhanced nanoclay adsorption. The formation of a stable goat hair coverage with a 2–3 µm halloysite layer loaded with permethrin insecticide allowed for long-lasting anti-parasitic protection, enduring multiple rain wettings and washings. We expect that our technology will find applications in animal parasitosis protection and may be extended to prolonged human anti-lice treatment.

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Section: Surface Texture Of Halloysite Coated Hair Cuticlesmentioning

confidence: 99%

Clay Nanotube Immobilization on Animal Hair for Sustained Anti-Lice Protection

et al. 2021

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“…In recent years, considerable effort has been devoted to the development of hybrid nanomaterials [1][2][3][4][5] to generate novel structures with tunable properties through external stimuli such as pH, temperature, light, and magnetic field [6][7][8][9][10]. Among other nanomaterials, significant research effort has been dedicated to the use of nanotubes [1][2][3][4]6,7,[11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

pH-Controlled fluorescence switching in water-dispersed polymer brushes grafted to modified boron nitride nanotubes for cellular imaging

Kalay

Stetsyshyn

Donchak

et al. 2019

Beilstein J. Nanotechnol.

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pH-Switchable, fluorescent, hybrid, water-dispersible nanomaterials based on boron nitride nanotubes (BNNTs) and grafted copolymer brushes (poly(acrylic acid-co-fluorescein acrylate) – P(AA-co-FA)) were successfully fabricated in a two-step process. The functionalization of BNNTs was confirmed by spectroscopic, gravimetric and imaging techniques. In contrast to “pure” BNNTs, P(AA-co-FA)-functionalized BNNTs demonstrate intense green fluorescence emission at 520 nm. Under neutral or alkaline pH values, P(AA-co-FA)-functionalized BNNTs are highly emissive in contrast to acidic pH conditions where the fluorescent intensity is absent or low. No increase in the absorption was observed when the suspension pH was increased from 7 to 10. The functionalized BNNTs are easily taken up by human normal prostate epithelium (PNT1A) and human prostate cancer cell lines (DU145) and are suitable for further evaluation in cellular imaging applications.

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“…The production of biopolymers from bio monomers instead requires their chemical modification to introduce a reactive moiety, such as an acrylate or vinyl group, which allows them to retain their chemical structure and function unaltered while being transformed into a macromolecule. In case of cholesterol, addition of a methacrylate moiety was necessary for the polymerization on a functional glass surface, as for amino acid modified with vinyl groups . Multistep polymerization for the formation of ABA polymer brushes grants access to membrane like structures .…”

Section: Planar Membrane Fabricationmentioning

confidence: 99%

Self‐Assembled Polymeric Membranes and Nanoassemblies on Surfaces: Preparation, Characterization, and Current Applications

Chimisso

Maffeis

Hürlimann

et al. 2019

Macromolecular Bioscience

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Biomembranes play a crucial role in a multitude of biological processes, where high selectivity and efficiency are key points in the reaction course. The outstanding performance of biological membranes is based on the coupling between the membrane and biomolecules, such as membrane proteins. Polymer‐based membranes and assemblies represent a great alternative to lipid ones, as their presence not only dramatically increases the mechanical stability of such systems, but also opens the scope to a broad range of chemical functionalities, which can be fine‐tuned to selectively combine with a specific biomolecule. Tethering the membranes or nanoassemblies on a solid support opens the way to a class of functional surfaces finding application as sensors, biocomputing systems, molecular recognition, and filtration membranes. Herein, the design, physical assembly, and biomolecule attachment/insertion on/within solid‐supported polymeric membranes and nanoassemblies are presented in detail with relevant examples. Furthermore, the models and applications for these materials are highlighted with the recent advances in each field.

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Temperature-responsive grafted polymer brushes obtained from renewable sources with potential application as substrates for tissue engineering

Cited by 29 publications

References 53 publications

Clay Nanotube Immobilization on Animal Hair for Sustained Anti-Lice Protection

Clay Nanotube Immobilization on Animal Hair for Sustained Anti-Lice Protection

pH-Controlled fluorescence switching in water-dispersed polymer brushes grafted to modified boron nitride nanotubes for cellular imaging

Self‐Assembled Polymeric Membranes and Nanoassemblies on Surfaces: Preparation, Characterization, and Current Applications

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