BACKGROUND Carbon nanotubes (CNTs) have unique physical and chemical properties. Furthermore, novel properties can be developed by attachment or encapsulation of functional groups. These unique properties facilitate the use of CNTs in drug delivery. We developed a new nanomedicine consisting of a nanocarrier, cell-targeting molecule, and chemotherapeutic drug and assessed its efficacy in vitro....

Research into polymers incorporating polyhedral oligomeric silsesquioxane (POSS) has intensified during the past several years, revealing new fundamental polymer physics, new synthetic routes, and unexpected applications. The present review article critically examines the recent scientific literature on POSS polymers with an emphasis on structure-property relationships. We conclude that it is a...

Using density functional theory, the G0W0 method and Bethe-Salpeter equation calculations, we systematically explore the structural, electronic and optical properties of hydrogenated and fluorinated germanene. The hydrogenated/fluorinated germanene tends to form chair and zigzag-line configurations and its electronic and optical properties show close geometry dependence. The chair hydrogenated/...

Trisilanolphenyl-polyhedral oligomeric silsesquioxane titanium (Ti-Ph-POSS) was synthesized through the corner-capping reaction, and Ti-Ph-POSS dispersed in benzoxazine (BZ) to prepare Ti-Ph-POSS/PBZ composite materials. could catalyze ring-opening polymerization (ROP) of BZ reduce curing temperature benzoxazine. In addition, Ti immobilized on cage form covalent bonds with N or O atoms polybenz...

Self-assembly of functionalized nanoscale building blocks is a promising strategy for "bottom-up" materials design. Recent experiments have demonstrated that the self-assembly of polyhedral oligomeric silsesquioxane (POSS) "nanocubes" functionalized with organic tethers can be utilized to synthesize novel materials with highly ordered, complex nanostructures. We have performed molecular simulat...

The results of Raman microspectroscopy measurements of octamethylsilsesquioxane (om-POSS) (3-wt %) in polypropylene (PP) are presented and compared with theoretical spectra calculated by ab initio density functional theory (DFT) based methods. The internal structure of this dielectric composite at the micrometer level was obtained by Computerized X-ray microtomography (CXμT) which reveals how m...

Backbone-fluorinated amino acids exhibit unique conformational behaviour, and have potential utility as components of bioactive shape-controlled peptides. However, methods for the elaboration of backbone-fluorinated amino acids have thus far been limited to solution phase peptide coupling reactions. In this paper, protocols are developed that allow the successful manipulation of backbone-fluori...

Public open spaces (POSs) provide multiple services (such as facilities for physical activities and social interactions) to local people, these are important the well-being of society improving quality life. Extensive research on POSs has been carried out in developed countries US Australia, well European including Spain, France, Germany). However, Saudi Arabian context remain unexplored. This ...

Recently, 3D-printed polyether-ether-ketone (PEEK) components have been shown to offer many applications in state-of-the-art electronics, 5G wireless communications, medical implantations, and aerospace components. Nevertheless, a critical barrier that limits the application of 3D printed PEEK is their weak interfacial bonding strength. Herein, we propose novel method improve this unsatisfied s...