Morphology control to design p(acrylic acid)/silica nanohybrids with controlled mechanical properties

Nazarabady, Maryam Mohammadpour; Farzi, Gholamali

doi:10.1016/j.polymer.2018.02.026

Cited by 6 publications

(3 citation statements)

References 37 publications

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“…The scheme of synthesis is presented in Figure 2b. The hydrolysis reaction of TEOS proceeds through the formation of reactive Si-OH species and subsequent condensation of bonds leading to the formation of the Si-O-Si bridges [24,26]. The condensation of the supersaturated silicic acid was indicated by an increasing opalescence of the mixture starting 2-10 min after adding the TEOS [25].…”

Section: Preparation Of Sio2 Npsmentioning

confidence: 99%

Inorganic nanocarriers based on calcium carbonate and silica oxide for passive breast cancer targeting

Postovalova,

Tishchenko,

Rusakova

et al. 2024

Chim.Tech.Acta

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Nanoparticles (NPs) are widely used platforms for delivery of various biologically active compounds. Unfortunately, there is a lack of comprehensive investigations that would include a few types of NPs with different physicochemical parameters and their potential use as delivery systems in one tumor model. Therefore, to achieve therapeutic effect via nanocarrier with therapeutic agent, the properties of the developed NPs must be clearly defined. Herein, we report the development and modification of 99mTc and Cy5-labeled NPs based on calcium carbonate (CaCO3) and silica oxide (SiO2) to investigate in vitro and in vivo distribution on an example of a breast cancer model. We describe the synthesis and characterization of these NPs, including their morphology, size distribution, stability in biological media and cytotoxicity. Transmission electron microscopy (TEM), confocal laser scanning microscopy (CLSM), dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FTIR), direct radiometry analysis, and histology were used to collect all data. The cellular uptake of NPs on 4T1 cell linewas shown in vitro and in vivo. As a result, we demonstrated that these NPs are non-toxic, biocompatible, and stable system to use for delivery of bioactive compounds into breast cancer.

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Section: Preparation Of Sio2 Npsmentioning

confidence: 99%

Inorganic nanocarriers based on calcium carbonate and silica oxide for passive breast cancer targeting

Postovalova,

Tishchenko,

Rusakova

et al. 2024

Chim.Tech.Acta

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“…[ 34–35 ] Note that tetraethoxysilane (TEOS) can gradually hydrolyze and condense to form silica (SiO 2 ) with abundant hydroxyl groups in an alkaline environment. [ 36 ] As a result, when the TEOS is added into dopamine reaction solution, these hydrophilic SiO 2 nanoparticles may be fixed onto substrates by dopamine‐assisted co‐deposition and the resulting hybrid coatings possess higher hydrophilicity and favorable stability. [ 37 ]…”

Section: Introductionmentioning

confidence: 99%

Enhanced high‐temperature tribological performance of PTFE/PI fabric composites by simultaneously introducing PDA/SiO₂ hybrid coating and aramid product reinforcements

et al. 2021

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Surface modification with polydopamine (PDA)‐based coating is widely used to obtain high performance and build special functions for modified surfaces. Herein, a mussel‐inspired nanohybrid coating (PDA/SiO2) was first co‐deposited onto the polytetrafluoroethylene (PTFE)/polyimide (PI) fabric surfaces via simultaneous polymerization of dopamine and hydrolysis of the tetraethoxysilane (TEOS) in a simple one‐pot method. This nanohybrid coating could afford the hybrid‐fabric sufficient active groups, improved surface roughness, and wettability without compromising fiber intrinsic strength. As a result, the interfacial bonding strength between fabric and PI resin matrix presented a significant increase as measured by the peeling tests. In addition, aramid pulp and aramid fiber powder were incorporated into the fabric composites to construct synergistic enhancement effects with PI fibers on bearing capacity and wear resistance. Results showed that the fabric@PDA‐TEOS/micro‐powder composites presented the best high‐temperature anti‐wear property resulting from the improved interfacial adhesion strength and carrying capacity of lubricant films.

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“…Research on colloidal polymer/silica nanocomposite materials with defined morphologies and properties has progressed rapidly since the past decades. The morphologies range from raspberry-like over core–shell, currant-bun-like, hedgehog, dumbbell-like, snowman-like, daisy-shaped, to multipod-like structures, exhibiting remarkable mechanical, electrical, optical, chemical, and rheological properties. − …”

Section: Introductionmentioning

confidence: 99%

Double in Situ Preparation of Raspberry-like Polymer Particles

Sihler

Ziener

2019

Langmuir

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Well-defined raspberry-like poly(styrene-co-4-vinylpyridine)-SiO 2 nanocomposite particles with a diameter of around 200 nm were easily prepared by a double in situ process in nanoemulsion with the water-soluble dye Eosin Y as the stabilizer. During radical polymerization of the nanodroplets comprising styrene, 4-vinylpyridine (4-VP), and tetraethoxysilane (TEOS), the silane phase is expelled from the polymer phase to the oil/water (o/w) interface. In the later polymerization stage, SiO 2 nanoparticles with a size of around 25 nm were produced via the in situ sol−gel reaction of TEOS at the o/w interface promoted by the negatively charged dye. The pyridine moieties in the copolymer fix the SiO 2 nanoparticles on the surface of the polymer particles by electrostatic interactions without any sign of free unbound silica particles as proven by transmission electron microscopy.

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Morphology control to design p(acrylic acid)/silica nanohybrids with controlled mechanical properties

Cited by 6 publications

References 37 publications

Inorganic nanocarriers based on calcium carbonate and silica oxide for passive breast cancer targeting

Inorganic nanocarriers based on calcium carbonate and silica oxide for passive breast cancer targeting

Enhanced high‐temperature tribological performance of PTFE/PI fabric composites by simultaneously introducing PDA/SiO₂ hybrid coating and aramid product reinforcements

Double in Situ Preparation of Raspberry-like Polymer Particles

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Morphology control to design p(acrylic acid)/silica nanohybrids with controlled mechanical properties

Cited by 6 publications

References 37 publications

Inorganic nanocarriers based on calcium carbonate and silica oxide for passive breast cancer targeting

Inorganic nanocarriers based on calcium carbonate and silica oxide for passive breast cancer targeting

Enhanced high‐temperature tribological performance of PTFE/PI fabric composites by simultaneously introducing PDA/SiO2 hybrid coating and aramid product reinforcements

Double in Situ Preparation of Raspberry-like Polymer Particles

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Enhanced high‐temperature tribological performance of PTFE/PI fabric composites by simultaneously introducing PDA/SiO₂ hybrid coating and aramid product reinforcements