Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
We prepared thermosensitive poly( N-(2-hydroxypropyl)methacrylamide mono/dilactate) (pHPMA mono/dilactate) polymer and studied temperature-triggered contents release from polymer-coated liposomes. HPMA mono/dilactate polymer was synthesized with a cholesterol anchor suitable for incorporation in the liposomal bilayers…
An organic compound, N-salicylidene-3-hydroxy-4-(benzo[d]thiazol-2-yl)phenylamine, with two intramolecular hydrogen bonding and triple fluorescence bands has been synthesized. With increasing pressure, enhanced emission of the triple fluorescence has been observed in succession. Within the pressure region up to 54.2 k…
ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication to the EditorNEXTObservation of Shear-Induced Hybrid Shish Kebab in the Injection Molded Bars of Linear Polyethylene Containing Inorganic WhiskersNanying Ning, Feng Luo, Baofeng Pan, Qin Zhang, Ke Wang, and Qiang FuView Author Information Department…
Aeromonas caviae polyhydroxyalkanoate synthase (PhaC(Ac)) is an important biocatalyst for the synthesis of practically useful two-component polyhydroxyalkanoate copolymer, poly[(R)-3-hydroxybutyrate-co-(R)-3-hydroxyhexanoate] [P(3HB-co-3HHx)]. In a previous study, two PhaC(Ac) mutants that have a single amino acid sub…
On the basis of optimized grinding/heating cycles developed for several phosphate-based ceramics, the preparation of brabantite and then monazite/brabantite solid solutions loaded with tetravalent thorium, uranium, and cerium (as a plutonium surrogate) was examined versus the heating temperature. The chemical reaction…
Surface-enhanced Raman scattering (SERS) integrates high levels of sensitivity with spectroscopic precision and has tremendous potential for chemical and biomolecular sensing. The key to the wider application of Raman spectroscopy using roughened metallic surfaces is the development of highly enhancing substrates for…
Stable amorphous calcium carbonate (ACC) composite particle with a size-controlled monodispersed sphere was obtained by a new simple carbonate controlled-addition method by using poly(acrylic acid) (PAA) (Mw = 5000), in which an aqueous ammonium carbonate solution was added into an aqueous solution of PAA and CaCl2 wi…
A nonvolatile, bistable, and rewritable organic memory device based on radical polymers was prepared and tested. The excellent performance of a battery-inspired memory architecture with a configuration of p- and n-type charge-transporting radical polymers sandwiching a dielectric layer was characterized. The ON−OFF ra…
In this paper, we report an approach for using solvophobic interactions to synthesize well-defined colloidal superparticles from nonpolar-solvent-dispersible Fe 3 O 4 nanoparticle artificial atoms. These colloidal superparticles possess a “single-supercrystal” structure, of which Fe 3 O 4 artificial atoms occupy the l…
We report coherent spin manipulation on Cr$^{5+}$ (\emph{S} = 1/2, \emph{I} = 0) doped K$_3$NbO$_8$, which constitutes a dilute two-level model relevant for use as a spin qubit. Rabi oscillations are observed for the first time in a spin system based on transition metal oxides up to room temperature. At liquid helium…
We present an ab initio study of the effect of various point defects with different concentrations on the magnetic properties of ${\mathrm{La}}_{0.64}{\mathrm{Sr}}_{0.36}\mathrm{Mn}{\mathrm{O}}_{3}$ (LSMO). We find that the 100% spin polarization is destroyed by oxygen vacancies with a concentration of 11.1% and by O…
Abstract Two different commercial crosslinked resins (Amberlite GT73 and Amberlite IRC748) were employed for anchoring silver. The SH and N(CH 2 COOH) 2 groups, respectively, present on these resins were used for Ag + chelation from an aqueous solution. The Ag + ions were reduced with three different reductants: hyd…
The heat of reaction is an important parameter in the safe, successful scale-up of chemical processes. Reaction heat data is used to calculate the potential adiabatic temperature rise of the desired reaction, providing a worst-case scenario for rapid reaction of the entire batch with no heat loss to the surroundings.…
We present molecular dynamics simulations of the structural relaxation of a simple bead–spring model for polymer blends. The introduction of a different monomer size induces a large timescale separation for the dynamics of the two components. Simulation results for a large set of observables probing density correlatio…
Supramolecular structures of porphyrin hetero-assemblies and the achiral analogous are determined through energy dispersive X-ray diffraction. In presence of phenylalanine, CuT4 cationic and H2TTPS anionic porphyrins yield a suprachiral α-helix persisting even after removing the chiral template. The analogous synthesi…
The combination of the two-dimensional layered structure and the semimetallic character of graphite is expected to produce a $\mathrm{C}\phantom{\rule{0.2em}{0ex}}1s$ photoemission spectrum of the (0001) surface with only one highly symmetric component. This simple view has been challenged by a recent study, performed…
Quantum dots can be charged selectively by electrons or holes. This leads to changes in the intensity of interband and intraband optical transitions. Using atomistic pseudopotential calculations, we show that (i) when carriers are injected into dot-interior quantum-confined states, the intensity of interband transitio…
Two-dimensional ZnO nanostructures have been prepared with nanoparticles as building blocks either by a solvothermal method or a liquid transport process at room temperature. ZnO nanoparticles can agglomerate into particulate nanosheets with area size in the micrometer range by directly heating in n -hexane. A stack o…
Abstract Carbon nanofibers (CNF) were modified via plasma assisted polymerization in a specially designed reactor. The effect of the plasma reactor conditions, such as power and time, on the extent of the CNFs modification was examined. Polystyrene (PS) coated nanofibers plus PS polymer were then processed in a Braben…
Lithium tetraborate (Li 2 B 4 O 7 ) crystals were grown by the Czochralski technique. The thermal gradient is the key factor to grow crack-free crystals. We have optimized the vertical thermal gradient for the growth of crack-free and optical quality crystals. This crystals belongs to the tetragonal system with lattic…