Materials Literature
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The efficacy of drug delivery systems can be significantly enhanced by making them target-specific via the attachment of various ligands to their surface. We attempted to enhance tumor accumulation and therapeutic effect of doxorubicin-loaded long-circulating liposomes (Doxil, ALZA Corp.) by coupling to their surface…
An optical waveguide sensor was fabricated by forming a multilayer film made by porous anodic alumina (PAA) and Al layers on a glass substrate. The fabricated sensor system was based on the monitoring of a waveguide coupling mode, which is sensitive to the change in the refractive index of the PAA layer caused by coll…
Three tetranuclear complexes [Cu 4 (H 2 L 1 ) 4 ]·10H 2 O ( 1 ), [Ni 4 (H 2 O) 3 (H 2 L 1 ) 3 (OH)]NO 3 ·6H 2 O ( 2 ) and [Zn 4 (H 2 L 1 ) 4 ]·2MeOH·2H 2 O ( 3 ) and two binuclear complexes [Cu 2 (H 3 L 1 ) 2 (NO 3 ) 2 ] ( 4 ) and [Cu 2 (H 3 L 2 ) 2 Cl 2 ](ClO 4 ) 2 ·2H 2 O ( 5 ) have been synthesized from two potenti…
The synthesis and characterization of a series of heteroleptic dipyrrinato/2,2'-bipyridine complexes of ruthenium(II) are reported. Spectroscopic analysis, including resonance Raman, indicates that the complexes are only weakly emissive and that the dipyrrin and Ru --> bipyridine (metal-to-ligand charge transfer) chro…
Highly oriented SiC porous nanowire (NW) arrays on Si substrate have been achieved via in situ carbonizing aligned Si NW arrays standing on Si substrate. The resultant SiC NW arrays inherit the diameter and length of the mother Si NW arrays. Field emission measurements show that these oriented SiC porous NW arrays are…
The suitability of Pseudomonas putida GPo1 for large-scale cultivation and production of poly(3-hydroxyoctanoate) (PHO) was investigated in this study. Three fed-batch cultivations of P. putida GPo1 at the 350- or 400-liter scale in a bioreactor with a capacity of 650 liters were done in mineral salts medium containin…
We report a thermosensitive microgel suspension that can be tuned reversibly between the glass state at low temperature and the liquid state at high temperature. Unlike hard spheres, we find that the glass transition for these suspensions is governed by both the volume fraction and the softness of the particles, where…
Zero-field (ZF) muon-spin-relaxation $(\ensuremath{\mu}\text{SR})$ measurements have revealed static commensurate magnetic order of Fe moments in NdFeAsO below ${T}_{N}\ensuremath{\sim}135\text{ }\text{K}$, with the ordered moment size nearly equal to that in LaFeAsO, and confirmed similar behavior in ${\text{BaFe}}_{…
Detonation nanodiamond possesses facile surface functional groups and can be chemically processed for many engineering applications. In this work, we demonstrate the functionalization of nanoscale diamond particles with aryl organics using Suzuki coupling reactions. In route one, hydrogenated nanodiamond is derivatize…
We report neutron-scattering measurements of cooperative spin excitations in antiferromagnetically ordered ${\text{BaFe}}_{2}{\text{As}}_{2}$, the parent phase of an iron pnictide superconductor. The data extend up to $\ensuremath{\sim}100\text{ }\text{meV}$ and show that the spin excitation spectrum is sharp and high…
Pd dendritic nanowire electrodes were synthesized by the electrodeposition method with different reduction potentials and deposition times. In particular, it was found that during the electrochemical deposition process, the Pd dendritic nanowire grew along the ⟨111⟩ direction resulting from the favorable adsorption of…
Salt formation is an approach to improve the physicochemical properties of the solid forms of an active pharmaceutical ingredient. As the anticonvulsant drug Lamotrigine presents low water solubility, a set of its salts with four different counterions has been obtained, and the influence of the counterion on the salt…
Steady-state photoluminescence (PL) quenching of colloidal CdSe/ZnS and CdSe quantum dots (QDs) induced by functionalized porphyrin molecules was investigated for various QD sizes. The majority of the observed strong quenching of the QD photoluminescence can be assigned to neither Förster resonant energy transfer (FRE…
A large-area, nest-like ZnO nanowires (NWs) array was prepared through the oxidation reaction between zinc foil and (NH 4 ) 2 S 2 O 8 at 150 °C for 18 h. CdTe quantum dots (QDs) were linked chemically to the array to form CdTe/ZnO heterostructures based on the good affinity of carboxyl to zinc ions. The molar content…
Abstract A novel approach combining layer‐by‐layer (LbL) assembly with biomimetic mineralization is proposed to prepare protamine–titiania hybrid microcapsules. More specifically, these microcapsules are fabricated by alternative deposition of positively charged protamine layers and negatively charged titania layers o…
The catalytically important Mn/CeO 2 −TiO 2 (MCT) solid solutions were synthesized by solution combustion technique using glycine, urea, or PEG as fuel. These samples along with those prepared by coprecipitation and wet impregnation methods were characterized for its structural, textural and redox properties using var…
Abstract Polyurethane (PU) and PU/multiwalled carbon nanotube (MWCNT) nanocomposite nanofibers, both with diameters of 350 nm, were prepared by an electrospinning process from PU dimethylformamide solutions. The appearance of nanowebs in PU/MWCNT nanofiber structures containing PU fibers with diameters of 20–40 nm was…
We report a room-temperature high-pressure x-ray and Raman scattering investigation of lead titanate (PbTiO3) up to 63 GPa. Three continuous phase transitions at 13, 20, and 45 GPa between tetragonal-like phases occur. As a result, no evidence is found for a pressure-induced morphotropic phase boundary. Our study prov…
The structural concept of shape-memory polymers (SMP) is based on two key components: covalent or physical crosslinks (hard domains) determining the permanent shape and switching domains fixing the temporary shape as well as determining the switching temperature Tsw. In conventional thermoplastic SMP hard and switchin…
Systematic ensemble photoluminescence studies have been performed on type-I InP-quantum dots in Al0.20Ga0.80InP barriers, emitting at approximately 1.85 eV at 5 K. The influence of different barrier configurations as well as the incorporation of additional tunnel barriers on the optical properties has been investigate…