Synthesis and characterization of sol–gel derived calcium hydroxyapatite thin films spin-coated on silicon substrate

Malakauskaite-Petruleviciene, Milda; Stankevičiūtė, Živilė; Niaura, Gediminas; Prichodko, Aleksandra; Kareiva, Aivaras

doi:10.1016/j.ceramint.2015.02.055

Cited by 23 publications

(14 citation statements)

References 57 publications

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“…The presence of hydroxyapatite on poly(S/EGDMA)HIPE was confirmed by EDX analysis. The result indicated that the Ca/P ratio of the obtained specimen was 1.45, which was relatively close to the theoretical value of 1.67 [27]. The structure of the poly(S/EGDMA)HIPE porous polymer was confirmed by a SEM image (Figure 2) and showed a three-…”

Section: Characterization Of Poly(s/egdma)hipe Poroussupporting

confidence: 74%

Nanolayer Film on Poly(Styrene/Ethylene Glycol Dimethacrylate) High Internal Phase Emulsion Porous Polymer Surface as a Scaffold for Tissue Engineering Application

Preechawong

Noulta

Dubas

et al. 2019

Journal of Nanomaterials

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Highly open, porous polymer or poly(high internal phase emulsion) (polyHIPE) obtained from polymerized high internal phase emulsions (HIPE) have recently attracted much attention and increasing interest in tissue engineering applications because of their excellent properties. This research is aimed at preparing and developing a process for producing polyHIPE for use as a scaffold in tissue engineering applications. Poly(styrene/ethylene glycol dimethacrylate) (poly(S/EGDMA)) loaded with hydroxyapatite was used to prepare the polyHIPE. Further improvement on hydrophilicity and biological response to tissue fluids of the polyHIPE porous polymer was carried out using a nanolayer coating via the layer-by-layer polyelectrolyte multilayer (PEM) technique. Three types of chemicals were used for coating on the surface of the polyHIPE porous polymer such as poly(sodium 4-styrene sulfonate) (PSS), gelatin (GEL), and alginic acid (ALG). The change in surface properties of the modified poly(S/EGDMA)HIPE was characterized by UV-visible spectroscopy and contact angle measurement. Further assessments consisted of cytotoxicity testing, cell attachment, and proliferation of L929, fibroblast-like cells that were seeded on the surface of the polyHIPE porous polymer. A three-dimensional structure poly(S/EGDMA)HIPE porous polymer with high porosity was successfully prepared. Moreover, it was found that surface modification encouraged poly(S/EGDMA)HIPE with a hydrophilic nanolayer, as observed by the decrease in contact angle degree and cell adhesion of L929 fibroblast-like cells, indicating that the poly(S/EGDMA)HIPE porous polymer was effectively improved by using the layer-by-layer technique. It was revealed by MTT assay that the poly(S/EGDMA)HIPE porous polymer coated with a nanolayer of a polyelectrolyte multilayer led to an enhancement in the amount of cell adhesion and proliferation on the modified poly(S/EGDMA)HIPE porous polymer. Additionally, the most effective polyelectrolyte solution for improving cell adhesion of the poly(S/EGDMA)HIPE was PSS.

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Section: Characterization Of Poly(s/egdma)hipe Poroussupporting

confidence: 74%

Nanolayer Film on Poly(Styrene/Ethylene Glycol Dimethacrylate) High Internal Phase Emulsion Porous Polymer Surface as a Scaffold for Tissue Engineering Application

Preechawong

Noulta

Dubas

et al. 2019

Journal of Nanomaterials

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“…The sol–gel synthesis processing route for high-quality calcium hydroxyapatite coatings on silicon substrate when PVA was used as a gel-network-forming agent [67] was a source of inspiration for this study. Therefore, to enhance the sol–gel processing, the viscosity of the precursor gel was increased by adding PVAsolution, and the drying temperature was also increased.…”

Section: Resultsmentioning

confidence: 99%

Sol–Gel Synthesis and Characterization of Coatings of Mg-Al Layered Double Hydroxides

Smalenskaite

Kaba

Grigoravičiūtė-Puronienė

et al. 2019

Materials

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In this study, new synthetic approaches for the preparation of thin films of Mg-Al layered double hydroxides (LDHs) have been developed. The LDHs were fabricated by reconstruction of mixed-metal oxides (MMOs) in deionized water. The MMOs were obtained by calcination of the precursor gels. Thin films of sol–gel-derived Mg-Al LDHs were deposited on silicon and stainless-steel substrates using the dip-coating technique by a single dipping process, and the deposited film was dried before the new layer was added. Each layer in the preparation of the Mg-Al LDH multilayers was separately annealed at 70 °C or 300 °C in air. Fabricated Mg-Al LDH coatings were characterized by X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), and atomic force microscopy (AFM). It was discovered that the diffraction lines of Mg3Al LDH thin films are sharper and more intensive in the sample obtained on the silicon substrate, confirming a higher crystallinity of synthesized Mg3Al LDH. However, in both cases the single-phase crystalline Mg-Al LDHs have formed. To enhance the sol–gel processing, the viscosity of the precursor gel was increased by adding polyvinyl alcohol (PVA) solution. The LDH coatings could be used to protect different substrates from corrosion, as catalyst supports, and as drug-delivery systems in medicine.

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“…Figure 1 shows the comparison of the XRD patterns for the CHAp coatings obtained at different processing conditions. The results summarized in the article [69] revealed that the coating derived [71][72][73][74][75][76][77][78][79][80][81][82][83]. The sol-gel chemistry routes have been developed to prepare calcium hydroxyapatite thin films on titanium, silicon, silica and stainless steel substrates by dip-coating and spin-coating techniques.…”

Section: Sol-gel Synthesis Using Organic Precursorsmentioning

confidence: 99%

Sol–gel synthesis of calcium phosphate-based coatings – A review

Ishikawa

Kareiva²

2020

chemija

Self Cite

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Calcium phosphate (CP)-based biomaterials, especially nanostructured ones, show a high biocompatibility and increased biological properties. The coatings composed of stoichiometric hydroxyapatite have been extensively used to improve integration of metallic implants in the host bone. However, these coatings exhibited several drawbacks that limited their successful application. It was concluded in numerous articles that the sol–gel derived coatings can undergo cracking and delamination and are scarcely uniform. In this review article the recent advances on the sol–gel synthesis of different phosphate coatings and thin films are summarized. The attention is paid to coatings and thin films of calcium hydroxyapatite (CHAp), other phosphates, bioglasses and different composite materials. The state of the art, limitations, potentialities, open challenges, and the future scenarios for the application of CP bioceramics are highlighted in this study.

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Synthesis and characterization of sol–gel derived calcium hydroxyapatite thin films spin-coated on silicon substrate

Cited by 23 publications

References 57 publications

Nanolayer Film on Poly(Styrene/Ethylene Glycol Dimethacrylate) High Internal Phase Emulsion Porous Polymer Surface as a Scaffold for Tissue Engineering Application

Nanolayer Film on Poly(Styrene/Ethylene Glycol Dimethacrylate) High Internal Phase Emulsion Porous Polymer Surface as a Scaffold for Tissue Engineering Application

Sol–Gel Synthesis and Characterization of Coatings of Mg-Al Layered Double Hydroxides

Sol–gel synthesis of calcium phosphate-based coatings – A review

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