Abstract
In the present study, tosylcellulose (TC) was used as a key intermediate for the selective coupling with 3-aminopropyltrimethoxysilane (APTMS) affording amino-propylsilane-grafted tosylcellulose (TC-Si). Solid state 13C NMR and FT-IR analyses confirmed the coupling and self-condensation of APTMS along TC. The changes in the surface morphology of the functionalized cellulose were identified by SEM imaging. The thermal stability of TC-Si was significantly improved as compared to MCC and TC. A new organic/inorganic hybrid cellulosic material was fabricated by embedding TiO2 nanoparticles into TC-Si network. The new cellulose polymers were investigated for their ability to promote the proliferation of human skin fibroblast (BJ1). The cell cytotoxicity assay showed that both TC and TC-Si possessed moderate toxicity to BJ1 cells by 17% and 23.8%, respectively at 20 μM. Meanwhile, TC-Si/TiO2 hybrid enhanced the proliferation of BJ1 by 42%. Additionally TC-Si/TiO2 hybrid demonstrated promising antimicrobial activity against Staphylococcus aureus, Pseudomonas aeruginosa, and Candida albicans.
Keywords:
3-Aminopropyltrimethoxysilane; Antimicrobial activity; BJ1 fibroblast; Hybrid material; TiO(2) nanoparticles; Tosylcellulose.
Copyright © 2018 Elsevier Ltd. All rights reserved.
MeSH terms
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Anti-Bacterial Agents / chemical synthesis
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Anti-Bacterial Agents / chemistry
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Anti-Bacterial Agents / pharmacology
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Anti-Bacterial Agents / toxicity
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Anti-Infective Agents / chemical synthesis
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Anti-Infective Agents / chemistry
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Anti-Infective Agents / pharmacology*
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Anti-Infective Agents / toxicity
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Antifungal Agents / chemical synthesis
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Antifungal Agents / chemistry
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Antifungal Agents / pharmacology
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Antifungal Agents / toxicity
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Biocompatible Materials / chemical synthesis
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Biocompatible Materials / chemistry
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Biocompatible Materials / pharmacology
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Biocompatible Materials / toxicity
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Candida albicans / drug effects
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Cell Line
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Cell Proliferation / drug effects*
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Cellulose / analogs & derivatives*
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Cellulose / chemical synthesis
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Cellulose / pharmacology
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Cellulose / toxicity
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Fibroblasts / drug effects*
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Humans
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Nanoparticles / chemistry
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Nanoparticles / toxicity
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Porosity
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Propylamines / chemistry
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Propylamines / pharmacology*
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Propylamines / toxicity
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Pseudomonas aeruginosa / drug effects
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Silanes / chemistry
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Silanes / pharmacology*
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Silanes / toxicity
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Staphylococcus aureus / drug effects
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Tissue Scaffolds / chemistry
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Titanium / chemistry
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Titanium / pharmacology*
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Titanium / toxicity
Substances
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Anti-Bacterial Agents
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Anti-Infective Agents
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Antifungal Agents
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Biocompatible Materials
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Propylamines
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Silanes
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3-aminopropyltrimethoxysilane
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titanium dioxide
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Cellulose
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Titanium