Materials Literature
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A photo-click reaction was used as an efficient method to construct two-photon fluorescent probes bearing two functional peptides for targeting and for protease cleavage respectively. The activatable two-photon probe constructed by this method was applied to two-photon imaging of caspase-3 both in cellular apoptosis a…
A novel and facile method was introduced to prepare positively charged nanofiltration membranes by PDA-assisted grafting of starburst PAMAM onto PES membranes surface.
To understand the mystery of preferential mismatching angle of grain boundaries (GB) in multi-crystalline graphene observed experimentally, a systematic kinetic Monte Carlo simulation is designed to explore how a two-dimensional amorphous carbon system evolves into graphene domains and GBs. The details of the evolutio…
Bifunctional CaTiO <sub>3</sub> :Ln <sup>3+</sup> nanocrystals not only can show very stable luminescence properties and a much higher quenching concentration due to the scheelite related structure of CaTiO <sub>3</sub> , but also can exhibit a higher activity for hydrogen production.
Micro and nano rough cube copper crystals were modified by 1-dodecanethiol/polydopamine multilayer on smooth copper substrate, which shows good superhydrophobic property and corrosion resistance ability.
This study reports the effect of transition metal (TM) substitution on the electrical and optical properties of BaCe0.9Sm0.1O3-δ (BCS). Concentrations of 5-10 mol % of each of Fe and Co have been doped for the B-site of BCS by citric acid autocombustion method. Powder X-ray diffraction has revealed the formation of an…
CdSe/CdS/ZnS core-shell-shell quantum dots (QDs) were synthesized by using a solution process. High-resolution transmission electron microscopy images and energy dispersive spectroscopy profiles confirmed that stoichiometric CdSe/CdS/ZnS core-shell-shell QDs were formed. Ultraviolet-visible absorption and photolumines…
The development of algorithms to optimize reaction pathways between reactants and products is an active area of study. Existing algorithms typically describe the path as a discrete series of images (chain of states) which are moved downhill toward the path, using various reparameterization schemes, constraints, or fic…
Oxygen-containing functional groups were introduced onto the surface of the micro- and meso-porous silicon carbide sphere (MMPSiC) in order to investigate the relationship between the electric double layer properties and pseudo-capacitive properties; the degree of oxidation of MMPSiC was also optimized. Although the o…
Summary A novel cross‐linked organophosphorus–nitrogen polymetric flame retardant additive poly(urea tetramethylene phosphonium sulfate) defined as PUTMPS was synthesized by the condensation polymerization between urea and tetrahydroxymethyl phosphonium sulfate. Its chemical structure was well characterized by Fourier…
The copolymerization of ω-pentadecalactone with δ-hexalactone creates a new kind of low glass transition polyester that shows improved biodegradability and flexibility in comparison to poly(ε-caprolactone) (PCL).
Catalytic thermal decomposition of natural gas to CO/CO2-free hydrogen production was studied over cobalt catalysts supported on Al2O3, MgO, and SiO2. The physico-chemical properties of the fresh catalysts were investigated by X-ray diffraction (XRD), temperature-programmed reduction (TPR), and surface area. In additi…
The enhanced relaxation of hydrogen atoms of surrounding water from suitable contrast agent promotes magnetic resonance imaging as one of the most important medical diagnosis technique. The key challenge for the preparation of performant contrast agents for magnetic resonance imaging with high relaxivity is to ensure…
To study the evolution of the electronic states and magnetism of the metallic and metalloid atoms across the first-order ferromagnetic transition of (Mn,${\mathrm{Fe})}_{2}$(P,Si,B) compounds, x-ray absorption (XAS) and magnetic circular dichroism (XMCD) spectra were recorded at the $K$ edges of P, Mn, and Fe. Surpris…
Silicon multilayers on Ag(111) have been suggested to exhibit the structure of silicene, a material that has been heralded as a novel basis for microelectronic applications. However, our angle-resolved photoemission spectra (ARPES) from silicon multilayers on Ag(111) and of the silver-induced reconstruction of Si(111)…
Functionalized porous carbon with an appropriate pore size distribution and open hole texture was prepared <italic>via</italic> the H <sub>2</sub> O <sub>2</sub> and EDTA-2Na treatment of loofa sponge followed by carbonization and KOH-activation. The product was employed as a supercapacitor electrode.
A rational design of magnetic capturing nanodevices, based on a specific interaction with circulating tumor cells (CTCs), can advance the capturing efficiency and initiate the development of modern smart nanoformulations for rapid isolation and detection of these CTCs from the bloodstream. Therefore, the development a…
imaging that irradiated ZnO NPs triggered cytoplasmic calcium influxes and facilitated nuclear degradation. Together these findings present a novel physicochemical mechanism for ˙OH generation from ZnO NPs with significant implications for nanoparticle cytotoxicity and their relation to human health.
Three octamolybdate-based metal–organic complexes constructed from a pyridyl-carboxylate ligand containing an amide group, 3-(2-pyridinecarboxylic acid)amido pyridine (HPCAP), namely, H2{[Cu3(PCAP)4(H2O)2](β-Mo8O26)}·10H2O (1), H{[Cu(PCAP)(H2O)](β-Mo8O26)0.5} (2) and H2[Co(H2O)6][Co2(PCAP)4(γ-Mo8O26)(H2O)2]·10H2O (3),…
Band alignment for bare ZnO, Cu <sub>2</sub> O and Cu <sub>2</sub> O/ZnO composites and <italic>I</italic> – <italic>t</italic> curves of Au/Cu <sub>2</sub> O/ZnO/FTO devices at zero bias under 450 nm illumination.