Articles with "silica nanocomposites" as a keyword



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Synthesis of cellulose–silica nanocomposites by in situ biomineralization during fermentation

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Published in 2019 at "Cellulose"

DOI: 10.1007/s10570-019-02824-z

Abstract: Abstract Bacteria cellulose (BC) generated by Acetobacter xylinum is made up of three-dimensional network of ribbon-shaped nanofibers and serves as a promising matrix for composite materials. Lately different types of nanoparticles have been adopted to… read more here.

Keywords: situ biomineralization; synthesis cellulose; silica; fermentation ... See more keywords
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Fractal Structure of Epoxy-Silica Nanocomposites Obtained by Cationic Polymerization

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Published in 2018 at "Theoretical and Experimental Chemistry"

DOI: 10.1007/s11237-018-9546-x

Abstract: Small-angle X-ray scattering indicates that increase of the silica particle (PSP) content leads to changes in the fractal organization of epoxy-silica composites and in the number of levels of self-similarity. Fractal structures of the primary… read more here.

Keywords: fractal structure; silica; structure epoxy; epoxy silica ... See more keywords
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Effect of the Silicon-Containing Phase on the Hierarchy of the Structure of Epoxy–Silica Nanocomposites

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Published in 2019 at "Theoretical and Experimental Chemistry"

DOI: 10.1007/s11237-019-09616-3

Abstract: Structural features of epoxy–silica nanocomposites obtained by cationic polymerization were studied by small-angle X-ray scattering. An increase in the amount of the inorganic phase in this system leads to greater aggregation of the silica particles.… read more here.

Keywords: silica; level; mean radius; structure ... See more keywords
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Superhydrophobic Coating Polymer/Silica Nanocomposites: Part I Synthesis and Characterization as Eco-Friendly Coating

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Published in 2019 at "Silicon"

DOI: 10.1007/s12633-019-00172-y

Abstract: Special coatings with desirable properties like superhydrophobicity, play an essential role in development of coated substrate surfaces. Solar cells, outdoor items and packaging materials are some of important applications which can be targeted with superhydrophobic… read more here.

Keywords: coating polymer; polymer; polymer silica; nanocomposites part ... See more keywords
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Silica-nanocomposites of photo-crosslinkable poly(urethane)s based on poly(ε-caprolactone) and coumarin

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Published in 2017 at "European Polymer Journal"

DOI: 10.1016/j.eurpolymj.2017.05.030

Abstract: Abstract Photo-reversible nanocomposites of polyurethanes (PUs) based on coumarin (CD) and poly(e-caprolactone) (PCL), with different molecular weights (PCL530, PCL2000) were developed. High molecular weight PUs were loaded with three different amounts of fumed silica nanoparticles… read more here.

Keywords: photo crosslinkable; poly; poly caprolactone; nanocomposites photo ... See more keywords
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Synthesis of magnetite/silica nanocomposites from natural sand to create a drug delivery vehicle

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Published in 2020 at "Heliyon"

DOI: 10.1016/j.heliyon.2020.e03784

Abstract: In this study, we report the synthesis of the magnetite/silica nanocomposites and their structural and functional groups, magnetic properties, morphology, antimicrobial activity, and drug delivery performance. The X-ray diffraction characterization showed that magnetite formed a… read more here.

Keywords: drug delivery; silica; drug; magnetite silica ... See more keywords
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Programmable stimuli-responsive polypeptides for biomimetic synthesis of silica nanocomposites and enzyme self-immobilization.

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Published in 2019 at "International journal of biological macromolecules"

DOI: 10.1016/j.ijbiomac.2019.05.159

Abstract: Bioinspired silicification is an attractive route for achieving unique silica nanocomposites. Herein, a novel, facile and inexpensive route for biosilica synthesis is developed using the stimuli-responsive elastin-like polypeptide (ELP). The ELP is precisely tailored to… read more here.

Keywords: immobilization; elp; stimuli responsive; self immobilization ... See more keywords
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Catalase immobilized in polypeptide/silica nanocomposites via emulsion and biomineralization with improved activities.

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Published in 2020 at "International journal of biological macromolecules"

DOI: 10.1016/j.ijbiomac.2020.05.138

Abstract: Polypeptide-mediated silica mineralization is an attractive approach to prepare polypeptide/silica nanocomposites for enzyme immobilization. Herein, a facile approach for in situ immobilization of catalase (CAT) in polypeptide/silica nanocomposites is developed via the preparation of cross-linked… read more here.

Keywords: topology; polypeptide silica; immobilization; silica nanocomposites ... See more keywords
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pH-Dependent Assembly of Porphyrin-Silica Nanocomposites and Their Application in Targeted Photodynamic Therapy.

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Published in 2017 at "Nano letters"

DOI: 10.1021/acs.nanolett.7b03310

Abstract: Structurally controlled nanoparticles, such as core-shell nanocomposite particles by combining two or more compositions, possess enhanced or new functionalities that benefited from the synergistic coupling of the two components. Here we report new nanocomposite particles… read more here.

Keywords: dependent assembly; porphyrin silica; photodynamic therapy; silica nanocomposites ... See more keywords
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Fine Regulation of Porous Architectures of Core-Shell Silica Nanocomposites Offers Robust Nanoprobes with Accelerated Responsiveness.

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Published in 2017 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.7b11226

Abstract: Probes bearing good aqueous solubility and biocompatibility as well as fast response can serve as ideal tools for evaluating the underlying molecular mechanism of endogenous production of H2S caused by drugs; however, they are still… read more here.

Keywords: core shell; silica; shell silica; h2s ... See more keywords
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Synthesis and Characterization of Thermosensitive P(NIPAAm-co-AAc)-Grafted Silica Nanocomposites for Smart Architectural Coatings

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Published in 2022 at "ACS Omega"

DOI: 10.1021/acsomega.1c06776

Abstract: In this study, a new class of thermosensitive poly(N-isopropylacrylamide)-co-poly(acrylic acid) (P(NIPAAm-co-AAc))-grafted modified silica (m-silica) nanocomposites was prepared using a sol–gel technique. The addition of silica to P(NIPAAm-co-AAc) copolymer hydrogel has the potential to open up… read more here.

Keywords: nipaam aac; aac; grafted silica; silica nanocomposites ... See more keywords