Dendritic supramolecular assemblies for drug delivery
Dendritic supramolecular assemblies were formed in water with Reichardt's dye or the anticancer drug 10-hydroxycamptothecin and the dendritic macromolecule, ([G4]-PGLSA-OH)2-PEG3400.
Materials Literature
文献浏览
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。
Evidence for C–C bond cleavage by H2O2 in a mesoporous CMK-5 type carbon at room temperature
We reported an evidence for C-C bond cleavage by milder oxidizing agent H2O2 in a mesoporous CMK-5 type carbon at room temperature.
Equivalent functions for the Fresnel integral
Fresnel integral is modeled with three equivalent functions. The first function is derived by considering the sum of the first term of the Fresnel integral's asymptotic expansion {F(x)} and an exponential function which approaches to infinity at the zero of the Fresnel function's argument and has the properties of a u…
Effects of cosurfactant on ZnS nanoparticle synthesis in microemulsion
ZnS nanoparticles with different morphology; spherical, ellipsoidal particles’ nanotubes and nanorods, could be successfully synthesized from quaternary W/O microemulsion system. The morphology of the final products could be clearly confirmed by the scanning electron microscopy (SEM) and the transmission electron micr…
Selection process of new solvents in temperature-dependent multi-component solvent systems and its application in isomerising hydroformylation
The rhodium–BIPHEPHOS catalysed hydroformylation of trans-4-octene yields n-nonanal at high selectivity under mild reaction conditions. In this contribution a new method for an efficient product and catalyst separation in hydroformylation reactions is presented. By application of a temperature-dependent multi-componen…
Computer Simulation of Phase Decomposition in Fe–Cu–Mn–Ni Quaternary Alloy Based on the Phase-Field Method
Recently, the phase-field method is becoming a powerful tool to simulate and predict complex microstructure evolutions in interdisciplinary fields of materials science. In this study, the phase-field simulations are demonstrated on the phase decomposition in the α (bcc) phase during isothermal aging in Fe–Cu–Mn–Ni qua…
ZrOCl2·8H2O catalysts for the esterification of long chain aliphatic carboxylic acids and alcohols. The enhancement of catalytic performance by supporting on ordered mesoporous silica
ZrOCl2·8H2O is an efficient catalyst for the esterification of long chain carboxylic acids with long chain primary and secondary alcohols. Supporting ZrOCl2·8H2O on ordered mesoporous silica enhances the catalytic activity of the esterification. The esters of C10–C18 normal acid and alcohol are obtained in high yield…
Near‐Room‐Temperature Production of Diameter‐Tunable ZnO Nanorod Arrays through Natural Oxidation of Zinc Metal
A simple, low-temperature strategy has been developed for the low-cost and large-area fabrication of ZnO nanoarrays on a zinc substrate by the natural oxidation of zinc metal in formamide/water mixtures. The one-step, wet-chemical approach has exhibited well-controlled growth of highly oriented and densely packed ZnO…
Porphyrin-fullerene C60 Dyads with High Ability to Form Photoinduced Charge-separated State as Novel Sensitizers for Photodynamic Therapy¶
Abstract The photodynamic activities of a porphyrin-C60 dyad (P-C60) and its metal complex with Zn(II) (ZnP-C60) were compared with 5-(4-acetamidophenyl)-10,15,20-tris(4-methoxyphenyl)porphyrin (P), both in homogeneous medium-bearing photooxidizable substrates and in vitro on the Hep-2-human-larynx–carcinoma cell line…
Enlarged π-electronic network of a meso-meso, β-β, β-β triply linked dibenzoporphyrin dimer that exhibits a large two-photon absorption cross section
Enlargement of the pi-electronic network of meso-meso, beta-beta, beta-beta triply linked diporphyrin has been exploited by preparing a corresponding dibenzo-fused porphyrin dimer that exhibits a perturbed absorption spectrum and a large two-photon absorption cross section.
Corrosion of aluminum alloy 2024 by microorganisms isolated from aircraft fuel tanks
Microorganisms frequently contaminate jet fuel and cause corrosion of fuel tank metals. In the past, jet fuel contaminants included a diverse group of bacteria and fungi. The most common contaminant was the fungus Hormoconis resinae. However, the jet fuel community has been altered by changes in the composition of the…
A new organometallic heteropolytungstate related to [Sb2W22O74(OH)2]12–: synthesis and structural characterisation of the bis-{Ru(p-cymene)}2+-containing anion [Sb2W20O70{Ru(p-cymene)}2]10–
The easy synthesis of [Sb2W20O70{Ru(p-cymene)}2](10-) by the reaction between the organometallic precursor [Ru(p-cymene)Cl2]2 and [Sb2W20O70]14-, formed in situ, confirms the importance of the organometallic route to well defined ruthenium(+II)-substituted heteropolytungstates.
Coordination chemistry of the hexavacant tungstophosphate [H2P2W12O48]12–: synthesis and characterization of iron(iii) complexes derived from the unprecedented {P2W14O54} fragment
Clusters which display the rare cubic Fe8 topology have been obtained by reaction of the metastable hexavacant polyoxotungstate [H2P2W12O48]12- with basic trinuclear metal acetates.
An Analysis of Flow Mechanisms in High Temperature Creep and Superplasticity
The flow of crystalline solids at elevated temperatures is dependent upon creep mechanisms associated with the movement of dislocations, the relative displacements of adjacent grains and the stress-directed flow of vacancies. It is convenient to express the steady-state creep rate in terms of the dependences of these…
In Vitro Cytotoxicity of Stealth Liposomes Co-encapsulating Doxorubicin and Verapamil on Doxorubicin-Resistant Tumor Cells
Multidrug resistance (MDR) is a major obstacle to successful clinical cancer chemotherapy. A novel doxorubicin anti-resistant Stealth liposomes (DARSLs), prepared by co-encapsulating doxorubicin (DOX) and verapamil (VER) into stealth liposomes, has been developed. The average particle size of DARSLs was 118.1+/-22.3 n…
Protonic-Electronic Mixed Conduction and Hydrogen Permeation in BaCe[sub 0.9−x]Y[sub 0.1]Ru[sub x]O[sub 3−α]
The protonic-electronic mixed conductors are of great interest for their potential applications particularly for the hydrogen separation that is essential for hydrogen production from hydrocarbons. This paper deals with the mixed conduction properties of in which Ru is partially substituted for Ce in the high-temperat…
A 0.18-/spl mu/m 3.0-V 64-Mb nonvolatile phase-transition random access memory (PRAM)
A nonvolatile 64-Mb 1T1R phase-transition random access memory (PRAM) has been developed by fully integrating chalcogenied storage material (GST: Ge/sub 2/Sb/sub 2/Te/sub 5/) into 0.18-/spl mu/m CMOS technology. To optimize SET/RESET distribution, 512-kb sub-array core architecture was proposed, featuring meshed groun…
Tinkering
Tinkering takes a fresh look at early automotive design from the bottom up, as a process that included manufacturers, engineers, designers, advice experts, and consumers, from savvy buyers to grass-roots inventors.
Structural investigation of metaphosphate glasses
Journal URL: http://www.societyofglasstechnology.org.uk/cgi-bin/open.cgi?page=journal&sessionid=85597106; http://www.ingentaconnect.com/content/sgt/pcg; http://www.societyofglasstechnology.org.uk/cgi-bin/open.cgi?page=%20PC/PC-00a&sessionid=85597106
Guided resonances in asymmetrical GaN photonic crystal slabs observed in the visible spectrum
We demonstrate that guided resonant modes can be readily observed in asymmetrical photonic crystal slabs on high-index substrates. In spite of the high radiative loss associated with all optical modes in these cases, the guided resonant modes are found to give rise to strong high-Q features in the transmission spectra…