Materials Literature
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Due to its p-type conductivity, CuAlO2 has been widely studied. However, the conductivity of p-type CuAlO2 is much lower than that of n-type, which limits its applications. We used the generalized gradient approximation and hybrid functional B3LYP to study the effects of chalcogen substitution on the electronic proper…
Understanding how newly engineered micro- and nanoscale materials and systems that interact with cells impact cell physiology is crucial for the development and ultimate adoption of such technologies. Reports regarding the genotoxic impact of forces applied to cells in such systems that can both directly or indirectly…
The synthesis and the characterization of two porphyrin coordination cages are reported. The design of the cage formation is based on the coordination of silver(I) ions to the pyridyl units of 3-pyridyl appended porphyrins. (1)H/(109)Ag NMR spectroscopy, and diffusion-ordered spectroscopy (DOSY) experiments demonstrat…
Novel saponification-triggered gelation in an ester-based bis-salen Zn(II) complex (1) is described. Strategic structural modifications induced by NaOH in 1 tune the dipolar-/π-interactions leading to J-aggregation and the creation of an inorganic gel material (IGM), which has been established by photophysical, DFT an…
Conventional collagen-based heart valves eventually fail because of insufficient replacement of graft material by host tissue. In this study, type I collagen was blended with silk fibroin and the synthetic elastic polymer poly (glycerol-sebacate) (PGS) in varying proportions to create multifunctional electrospun nanof…
A series of PAMAM dendrimers peripherally modified with tetraphenylethylene (TPE), a typical chromophore with emission enhancement in aggregate, were synthesized (D0–D4). The dendrimers are molecularly dissolved in toluene, a selective solvent. The intramolecular rotation of TPE is depressed by the restrained conforma…
A novel inorganic-organic siloxane hybrid material with self-adhesion ability and high refractive index for high-power light emitting diodes (LEDs) encapsulation is introduced. Under the catalysis of an anion exchange resin, the hybrid material was synthesized by a sol-gel condensation process from methacryloxy propyl…
We developed a new laser processing system to repair various damages of metal parts in aging nuclear facilities. The system consisted of some components; a laser torch, a composite-type optical fiber (COF), a quasi-continuous wave (QCW) fiber laser, a coupling device. All components were installed in a mobile rack, so…
Challenges associated with damage tolerance in polymer matrix composites must be successfully addressed in order to ensure highly reliable structures with significant weight savings. Self-healing materials provide a viable means to surmount damage tolerance concerns, thereby allowing for the realization of the mass re…
We report that silver nanowire fillers can result in a three-fold decrease in viscoelastic storage modulus of polydimethylsiloxane composites above a low critical filler fraction of ∼0.5%, contrary to theoretical predictions presaging a modulus increase. Similar fractions of silver nanocube fillers result in no such o…
The influence of surfactant cetyl trimethyl ammonium bromide (CTAB) on structural, morphological and optical properties of CdO films has been investigated. Five series of CdO films were successfully prepared by successive ionic layer adsorption and reaction method with the assistance of CTAB. These CdO films were char…
Abstract The mechanical properties of Christmas palm-reinforced polyester composite were improved by chemical modification of Christmas palm fibers through alkali treatment. An attempt was made in this investigation to identify the possibility of using potassium hydroxide as alkali solution. The fibers treated with po…
2 symmetry. There are total 17 independent material coefficients for this symmetry so that the determination of self-consistent full matrix data is extremely difficult because many samples are needed and there is a large property variation from sample to sample. To overcome this self-consistency difficulty, we have de…
The adsorption mechanism of glucose molecule on intrinsic and Pt-decorated single-walled carbon nanotubes (SWCNTs) was studied using first-principles van der Waals density functional (vdW-DF) calculations. The adsorption of glucose simultaneously was investigated on both (8, 0) and (5, 5) SWCNTs for a comparison. The…
Peptide based self-assembled structures, especially those from smaller peptides, have attracted much research interest due to their potential applications as biomaterials. These structures have been produced using different solvents (one of the methods), including alcohols, except fluorinated alcohols, which are belie…
In this paper, a novel brush-like copolymer consisting of poly(ethylene glycol) methyl ether methacrylate and 2-aminoethyl methacrylate (AEMA) named as poly(PEGMA300-co-AEMA) was synthesized by atom transfer radical polymerization (ATRP), and then, poly(PEGMA300-co-AEMA) copolymer was immobilized onto material surface…
The pore characteristics and the mechanical properties of silica samples templated by wood were investigated. The wood samples had been either solely extracted with solvent, delignified or delignified and functionalized with maleic acid anhydride prior to infiltration with tetraethyl orthosilicate and subsequent calci…
A new method for the functionalization of detonation nanodiamonds (DNDs) is proposed, on the basis of surface modification with phosphonic dichloride derivatives. DNDs were first modified by phenylphosphonic dichloride, and the grafting modes and hydrolytic stability under neutral conditions were investigated using (1…
N-[(Uracil-5-yl)methyl]urea is reported as a minimalistic low-molecular-weight hydrogelator (LMWHG). The unusual phosphate-induced assembly of this compound has been thoroughly investigated by IR, UV/Vis, and NMR spectroscopy, electron microscopy, and rheological experiments. This rare example of an anion-triggered ur…
Nanostructured polyaniline has attracted more attention due to its interesting properties and potential applications. In this paper, itaconic acid doped polyaniline nanorods were successfully synthesized via chemical oxidation polymerization under the optimal polymerization condition obtained by the previous orthogona…