Materials Literature
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Phase segregation between polymer and gelling silica has been utilized to introduce a controlled second level of porosity into mesoporous silica particles produced by evaporation-induced self-assembly (EISA) in aerosol droplets. During EISA within droplets, solvent evaporation leads to surfactant self-assembly, which…
Chemical modification of the trinuclear [Mo3(μ3-S)(μ2-S2)3Br6]2− cluster, at either the outer bromine or the disulfide ligands, allows the facile preparation of the dianions [Mo3(μ3-S)(μ2-S2)3(tdas)3]2− ([1]2−) (tdas = 1,2,5-thiadiazole-3,4-dithiol), [Mo3(μ3-S)(μ2-SSe)3Br6]2− ([2]2−) and [Mo3(μ3-S)(μ2-S2)3Cl6]2− ([3]2…
Cisplatin conjugated onto macromolecules or loaded in micelles can be preferentially delivered to tumors to minimize its toxicity to healthy tissues and increase its drug efficacy. Herein, we report cisplatin-containing nanogels possibly useful for targeted delivery of cisplatin. Carboxylic acid-functionalized poly(be…
Aggregation of tetranuclear Mn(4)O(2) building blocks with alkali ion was studied. Several Mn(iii) complexes containing [Mn(4)O(2)(AcO)(7)(pyz)(2)](-) (pyz = pyrazinate) anion(s) were obtained from an assembly system containing Mn(ii), MnO(4)(-), HOAc and Hpyz (Napyz or Kpyz). These [Mn(4)O(2)](8+) complexes have mono…
Duplex stainless steels have an ex- tensive, successful, track record in a multitude of corrosive and erosive environments up to 315°C (600°F), while providing high immunity to stress corrosion cracking (SCC). Althoughduplex stainless steels are, in many cases, superior in corrosion resistance and strength compared to…
This paper presents the effects of elastane yarn type and fabric density on the seam performance of PET/ elastane woven fabrics. In this study, 12 different weft stretched fabrics were woven with 2 different weft yarns, 2 different weave types and 3 different weft densities. The weft and warp yarns of the weft stretch…
The combined need for weight reduction and increased safety in modern vehicles has led automobile manufacturers to utilise the unique properties of high strength steels in their vehicles. Standard quasi-static tensile tests allow the static mechanical properties to be evaluated for any given steel grade. However, auto…
A method of synthesizing functional nanostructured powders through reactive thermal plasma processing has been developed. The synthesis of nanosized titanium oxide powders was performed by the oxidation of solid and liquid precursors. Quench gases, either injected from the shoulder of the reactor or injected counter t…
Dissipative particle dynamics simulations were performed on the morphology and structure of multicompartment micelles and vesicles formed from pi-shaped ABC block copolymers in water. By varying the chain architecture and the composition of copolymers, a rich variety of morphologies were observed, such as oblate vesic…
Optically pumped single-mode lasing was achieved from a 4-(dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran dye-doped holographic polymer-dispersed liquid crystal transmission grating with various liquid crystal concentrations, which played an important role in the lasing generation and wavelength selecti…
Pharmaceutical blends consist of several components each with its own unique characteristics, with different size, shape, density, and particle-particle interactions. With so many degrees of complexity, prediction of segregation behavior becomes intractable. The objective of this study was to develop a segregation tes…
Wetting of hydrophobic polymer surfaces commonly employed in electronic coatings and their interaction with surfactant-laden liquids and aqueous polymer solutions are analyzed using a contact angle hysteresis (CAH) approach developed by Chibowski and co-workers. In addition, a number of low surface tension acrylic mon…
A synthetic route to 3′-O-alkyl nucleotides is described that provides easy access to a series of nucleotide-based amphiphiles. Physicochemical experiments demonstrate that these nucleotide amphiphiles possess different aggregating properties compared to both their non-nucleotide analogues and simple nucleotides. The…
Biomimetic strategies to control mineral nucleation include the development of self-assembled monolayers with appropriate structural properties. We present a bis-urea based surfactant with variable structural adaptability, which induces habit modification in calcite crystals under optimal conditions. In situ surface-s…
With the aim of further developing the structure-activity relationship in biologically active half-sandwich Ru(ii)-[9]aneS(3) complexes ([9]aneS(3)=1,4,7-trithiacyclononane), a series of new mono- and dinuclear complexes bearing the chelating dicarboxylate ligands oxalate (ox), malonate (mal) and methylmalonate (mmal)…
Detailed information on corrosion processes provides the key to effective prediction and minimization of corrosion damage. The initiation stage of material decomposition plays a special role, since the corrosion starts mainly on weakest locations, such as surface defects, grain boundaries, segregations or inclusions.…
In order to obtain materials with a tailored thermal expansion, in particular zero-thermal-expansion between -50~100°C, the possibility of preparation, thermal expansion behavior and phase transition of Al2-xMx(WO4)3 (M: Y, Ga and Sc) have been examined. Y was not substituted for the Al site in Al2(WO4)3. Al2-xGax(WO4…
A comparative study at the ambient temperature of the ferromagnetic resonance (FMR) spectra of Ni/ZnO and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="E3"><mml:mrow><mml:mtext>Ni/</mml:mtext><mml:mi>γ</mml:mi></mml:mrow></mml:math>-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="E4"><mml:mr…
Superelasticity of β Ti-16 at%Nb-4.8 at%Sn alloy consisting of non- (or minimal-) cytotoxic elements was investigated for biomedical applications as functions of deformation temperature and aging heat treatment after quenching. As-quenched Ti-16Nb-4.8Sn having Af (the reverse martensitic transformation finish temperat…
Effects of Mn on the localized corrosion, repassivation kinetics, and stress corrosion cracking (SCC) of high Mn–N stainless steels (SSs) were examined in chloride solutions and compared with those of type 304 SS. The resistance to pitting corrosion of high Mn–N SSs decreased with an increase in Mn content at the expe…