Hybrid organosilane fibrous materials and their contribution to modern science

Máková, Veronika; Holubová, Barbora; Krabicová, Ilona; Kulhánková, Johana; Řezanka, Michal

doi:10.1016/j.polymer.2021.123862

Cited by 15 publications

(13 citation statements)

References 150 publications

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“…Over the last few years, the field of creating new hybrid materials has attracted great attention [ 1 , 2 , 3 , 4 , 5 , 6 ]. Of particular focus are biohybrid materials based on microbial cells.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Hybrid Sol-Gel Materials Based on Living Cells of Microorganisms and Their Application in Nanotechnology

et al. 2022

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Microorganism-cell-based biohybrid materials have attracted considerable attention over the last several decades. They are applied in a broad spectrum of areas, such as nanotechnologies, environmental biotechnology, biomedicine, synthetic chemistry, and bioelectronics. Sol-gel technology allows us to obtain a wide range of high-purity materials from nanopowders to thin-film coatings with high efficiency and low cost, which makes it one of the preferred techniques for creating organic-inorganic matrices for biocomponent immobilization. This review focuses on the synthesis and application of hybrid sol-gel materials obtained by encapsulation of microorganism cells in an inorganic matrix based on silicon, aluminum, and transition metals. The type of immobilized cells, precursors used, types of nanomaterials obtained, and their practical applications were analyzed in detail. In addition, techniques for increasing the microorganism effective time of functioning and the possibility of using sol-gel hybrid materials in catalysis are discussed.

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Section: Introductionmentioning

confidence: 99%

Preparation of Hybrid Sol-Gel Materials Based on Living Cells of Microorganisms and Their Application in Nanotechnology

et al. 2022

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“…Recently, the sol-gel exhibited worthy advantages in the production of polyimide/silica nanocomposites by increasing the interfacial interactions between the polymer and silica, which help in improving the compatibility between them Chruściel and Ślusarski 2003;Zou et al 2008). Many researchers, for example, Issa and Luyt (2019), Al Arbash et al (2006), and Máková et al (2021) have been interested in employing different organosilanes with tetra alkoxysilane to produce a silica network in a polyimide matrix. In the meantime, applications of the polyimide/silica nanocomposites have extended to different fields such as aerospace, photorefractive materials, microelectronics devices, nonlinear optics, photonics fields, and optical guides in addition to optoelectronic (Nouh et al 2015;Li et al 2015;Moon et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Structural, optical, dielectric, and surface properties of polyimide hybrid nanocomposites films embedded mesoporous silica nanoparticles synthesized from rice husk ash for optoelectronic applications

et al. 2022

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In this study, mesoporous silica nanoparticles previously prepared from the rice husk ash were utilized as nanofillers to fabricate thin films of polyimide/silica hybrid nanocomposites with different ratios (0, 6, 8, 10, and 12%). Subsequently, all hybrid films were further subjected to comprehensive characterization using XRD, SEM, AFM, and contact angle analyzers. The films exhibited a variety of optoelectronic properties depending on the silica nanoparticles' content. Where the silica nanofillers affected the optical clarity of polyimide films and increasing the silica ratio resulted in decreasing in films transmittance which led to reducing the transparency and enhanced the absorption coefficient of films in the UV range. Besides, the dielectric constant value and free charge carrier concentrations have increased which promoted the optical conductivity of the films. Moreover, increasing silica content resulted in converting the films from hydrophobic to hydrophilic surfaces, and has improved their wettability at all pH values. Graphical abstract

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“…Application of fibrous nanomaterials in areas of social and economic importance, such as regenerative medicine and biotechnology, has experienced significant progress in recent years [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Light-to-Heat Converting ECM-Mimetic Nanofiber Scaffolds for Neuronal Differentiation and Neurite Outgrowth Guidance

2022

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The topological cues of fibrous scaffolds (in particular extracellular matrix (ECM)-mimetic nanofibers) have already proven to be a powerful tool for influencing neuronal morphology and behavior. Remote photothermal optical treatment provides additional opportunities for neuronal activity regulation. A combination of these approaches can provide “smart” 3D scaffolds for efficient axon guidance and neurite growth. In this study we propose two alternative approaches for obtaining biocompatible photothermal scaffolds: surface coating of nylon nanofibers with light-to-heat converting nanoparticles and nanoparticle incorporation inside the fibers. We have determined photoconversion efficiency of fibrous nanomaterials under near infrared (NIR) irradiation, as well as biocompatible photothermal treatment parameters. We also measured photo-induced intracellular heating upon contact of cells with a plasmonic surface. In the absence of NIR stimulation, our fibrous scaffolds with a fiber diameter of 100 nm induced an increase in the proportion of β3-tubulin positive cells, while thermal stimulation of neuroblastoma cells on nanoparticles-decorated scaffolds enhanced neurite outgrowth and promoted neuronal maturation. We demonstrate that contact guidance decorated fibers can stimulate directional growth of processes of differentiated neural cells. We studied the impact of nanoparticles on the surface of ECM-mimetic scaffolds on neurite elongation and axonal branching of rat hippocampal neurons, both as topographic cues and as local heat sources. We show that decorating the surface of nanofibers with nanoparticles does not affect the orientation of neurites, but leads to strong branching, an increase in the number of neurites per cell, and neurite elongation, which is independent of NIR stimulation. The effect of photothermal stimulation is most pronounced when cultivating neurons on nanofibers with incorporated nanoparticles, as compared to nanoparticle-coated fibers. The resulting light-to-heat converting 3D materials can be used as tools for controlled photothermal neuromodulation and as “smart” materials for reconstructive neurosurgery.

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Hybrid organosilane fibrous materials and their contribution to modern science

Cited by 15 publications

References 150 publications

Preparation of Hybrid Sol-Gel Materials Based on Living Cells of Microorganisms and Their Application in Nanotechnology

Preparation of Hybrid Sol-Gel Materials Based on Living Cells of Microorganisms and Their Application in Nanotechnology

Structural, optical, dielectric, and surface properties of polyimide hybrid nanocomposites films embedded mesoporous silica nanoparticles synthesized from rice husk ash for optoelectronic applications

Light-to-Heat Converting ECM-Mimetic Nanofiber Scaffolds for Neuronal Differentiation and Neurite Outgrowth Guidance

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