Journal ArticleDOI
Hydrolysis and Condensation of Silicates: Effects on Structure
TLDR
In this paper, the authors reviewed the structural trends of monomeric alkoxysilanes and organylalkoxysinanes utilized in sol-gel processing and observed structural trends on the basis of the pH and [H2O] dependence of the hydrolysis, condensation, and dissolution reactions.Abstract:
The hydrolysis and condensation reactions of monomeric alkoxysilanes and organylalkoxysilanes utilized in sol-gel processing are reviewed. Both reactions occur by acid or base-catalyzed bimolecular displacement reactions. The acid-catalyzed mechanisms are preceded by protonation of OH or OR substituents attached to Si, whereas under basic conditions hydroxyl or silanolate anions attack Si directly. Many of the observed structural trends are understood on the basis of the pH and [H2O] dependence of the hydrolysis, condensation, and dissolution reactions.read more
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Engineering mesoporous silica nanoparticles for drug delivery: where are we after two decades?
TL;DR: The huge progress in the design and development of MSNs for biomedical applications, including the potential treatment of different diseases, during the last 20 years will be collated here, together with the required work that still needs to be done to achieve the clinical translation of these materials.
Journal ArticleDOI
Kinetics-Controlled Super-Assembly of Asymmetric Porous and Hollow Carbon Nanoparticles as Light-Sensitive Smart Nanovehicles.
Lei Xie,Miao Yan,Tianyi Liu,Ke Gong,Xin Luo,Beilei Qiu,Jie Zeng,Qirui Liang,Shan Zhou,Yan-Jun He,Wei Zhang,Yi-Chao Jiang,Yi Yu,Jinyao Tang,Kang Liang,Dongyuan Zhao,Biao Kong +16 more
TL;DR: In this article , a kinetics-controlled interfacial super-assembly strategy is developed, which is capable of preparing asymmetric porous and hollow carbon (APHC) nanoparticles through the precise regulation of polymerization and assembly rates of two kinds of precursors.
Journal ArticleDOI
Zwitterion Functionalized Silica Nanoparticle Coatings: The Effect of Particle Size on Protein, Bacteria, and Fungal Spore Adhesion
Brianna Knowles,Brianna Knowles,Dan Yang,Pawel Wagner,Shane Maclaughlin,Shane Maclaughlin,Michael J. Higgins,Paul J. Molino +7 more
TL;DR: Low-fouling hydrophilic coatings presenting nanoscaled features prepared from different size silica nanoparticles functionalized with zwitterionic chemistries display increased hydrophilicity compared to unmodified particle coating controls while increasing particle size correlated with increased coating roughness and increased surface area.
Journal ArticleDOI
Influence of silane coupling agent on the properties of UV curable SiO2-PMMA hybrid nanocomposite
TL;DR: In this paper, the authors reported the preparation of UV-curable organic-inorganic hybrid nanocomposites synthetized by sol-gel method with the aim of obtaining highly transparent anti-abrasive coatings with long-term storage and stability for the protection of organic light emitting diodes (OLEDs).
Journal ArticleDOI
Corrosion Barrier Coatings: Progress and Perspectives of the Chemical Route
TL;DR: In this article , the authors focus on the development and application of smart nanomaterials, which, if incorporated into passive CBCs, will turn them into active CBCs giving them the phenomenon of "self-healing" that extends their service life.
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Journal ArticleDOI
Hydrolysis and condensation of silicates: Effects on structure
TL;DR: In this article, the authors reviewed the structural trends of monomeric alkoxysilanes and organylalkoxysinanes utilized in sol-gel processing and observed structural trends on the basis of the pH and [H2O] dependence of the hydrolysis, condensation, and dissolution reactions.