Materials Literature
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Directed enzyme/prodrug therapy (DEPT) has promising application for cancer therapy. However, most current DEPT strategies face shortcomings such as the loss of enzyme activity during preparation, low delivery and transduction efficiency in vivo and difficultly of monitoring. In this study, a novel magnetic directed e…
2-Methoxyestradiol (2ME), a natural metabolite of estradiol, has antiproliferative and antiangiogenic activity. However, its clinical success is limited due to poor water solubility and poor pharmacokinetic parameters suggesting the need for a delivery vehicle. In this study we evaluated cathepsin B degradable star-sh…
Abstract Two-dimensional boron nitride (BN) nanosheets have attracted increasing attention owing to their diverse functionalities. Here, we developed, for the first time, a solid exfoliation method to prepare few-layer BN nanosheets by ball milling of hexagonal BN (h-BN) with ammonia–borane. We believe this facile and…
The elastic and structural properties of nanolaminate Zr2InC are studied by first-principles, and it is shown that, for any used modes, including the generalized gradient approximation (GGA) and localized density approximation, there always exists an ultraincompressibility along c axis between 70 GPa and 400 GPa. Such…
Liquid water marbles coated with fumed silica nanoparticles exhibit various shape transformations upon freezing which are dependent on the hydrophobicity of the nanoparticles. The shape can be recovered during re-melting. For marbles coated with the most hydrophobic particles, a vertically prolonged morphology with a…
The temperature evolution of several important thermal properties of crystalline InSb semiconductor is reported systematically. Results show that the specific heat and thermal expansion coefficient remain virtually unchanged upon heating, whereas the thermal diffusivity and thermal conductivity gradually decrease with…
Diffusion of two monomers and their oxidative copolymerization inside a solid-state gel electrolyte is utilized as a method to match the monomer feed ratio to a color resulting from a conjugated copolymer having a single absorption in the visible region. Here, a combination of two monomers is used to generate a solid-…
Sun block for nanoparticles: Unintentional photorelease triggered by UV light is a problem in photodynamic therapy. Encapsulating upconverting nanoparticles containing photoswitches in a UV-blocking amphiphilic polymer shuts down the one-photon process and only allows two-photon-driven photochemistry. Thus, UV light i…
Water uptake in porous low-k dielectrics has become a significant challenge for both back-end-of-line integration and circuit reliability. The influence of absorbed water on the mechanical properties of plasma-enhanced chemical-vapor-deposited organosilicate glasses (SiCOH) was investigated with nanoindentation. The r…
A sol–gel transition and the self‐healing of the resultant hydrogels are achieved utilizing a metallo‐supramolecule composed of terpyridine‐terminated low‐molecular‐weight three‐armed poly(ethylene glycol) (trisPEGtpy450) in water at ambient temperature. The gelation of trisPEGtpy450 with cobalt ions occurs by aerobic…
One method for improving cancer treatment is the use of nanoparticle drugs functionalized with targeting ligands that recognize receptors expressed selectively by tumor cells. In theory such targeting ligands should specifically deliver the nanoparticle drug to the tumor, increasing drug concentration in the tumor and…
The shape of nanoparticles is an important determinant of their physical and chemical properties, possibly including the little-explored area of their use as antifungal agents. Therefore, we evaluated the in vitro antifungal activities of three different shapes of silver and gold nanostructures, including nanocubes, n…
We present first-principles calculations of the electronic structure of the oxygen vacancies in θ-Al2O3 and amorphous Al2O3 (am-Al2O3) using the screened exchange (sX) hybrid functional. The sX hybrid functional can give correct band gap for both phases. The defect energy levels depend strongly on the charge state, wi…
Functionalization of MoS2 sheet (monolayer and bilayer) by the adsorption of transition metal Fe adatom to its surface and interlayer has been investigated computationally using first-principles calculations based on the density functional theory. We found that the systems with absorption of Fe adatoms on the surfaces…
An unmet need exists for the development of next-generation multifunctional nanocomposite materials for biomedical applications, particularly in the field of cardiovascular regenerative biology. Herein, we describe the preparation and characterization of a novel polyhedral oligomeric silsesquioxane poly(carbonate-urea…
This work extends the concept of seniority number, which has been widely used for classifying N-electron Slater determinants, to wave functions of N electrons and spin S, as well as to N-electron spin-adapted Hilbert spaces. We propose a spin-free formulation of the seniority number operator and perform a study on the…
The solid-state luminescence behavior of a compound (BAPN) depends on the molecular aggregation pattern. Modular analysis shows that the two emitting systems within the BAPN molecule are responsible for switching the emission color in various aggregation states.
Epoxy laminates were prepared by using hybridization of glass fibers and multiwalled carbon nanotubes. Mechanical behaviors of the epoxy hybrid composites were characterized by using flexural, impact, and fracture toughness tests. Morphological properties of the epoxy hybrid composites were investigated by using field…
Advances in the controlled assembly of nanoscale building blocks have resulted in functional devices which can find applications in electronics, biomedical imaging, drug delivery etc. In this study, novel covalent nanohybrid materials based upon [Ru(bpy)3](2+)-doped silica nanoparticles (SiNPs) and gold nanoparticles…
Raman gas spectrometry is introduced as a unique tool for the investigation of the respiratory activity that is indicative for growth of bacteria involved in biomineralization. Growth of these bacteria cannot be monitored using conventional turbidity-based optical density measurements due to concomitant mineral format…