Materials Literature
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A molecular detection method utilizing the magnetically induced aggregation of silver nanoparticle (NP)-embedded silica NPs for SERS activation is described. Here, silver embedded magnetic NPs (Ag-M-dots) composed of a magnetic core and silica shells, on whose surface silver NPs were formed, were used. Because the mag…
Surface Sb/Ni and Sn/Ni alloys were found to efficiently minimize the negative effects of sulfur on the performance of Ni/zirconia anode-supported solid oxide fuel cells (SOFC). Prior to operating on fuel gas containing low concentrations of H 2 S, the nickel/ zirconia anodes were briefly exposed to antimony or tin va…
Conductive titania nanofibres supporting Pt nanoparticles were synthesised in a one-pot method based on the electrospinning technique. The dimensions of both the oxide fibres and platinum particles were tuneable, leading to versatile nanomaterials with possible applications as electrodes for energy conversion devices.
α-Co(OH)2 hierarchical nanoflowers were synthesized using a microemulsion as a nanoreactor. These structures were self-assembled from cobalt hydroxide nanoflakes and possessed flowerlike morphology with a diameter of 200–500 nm. These α-Co(OH)2 nanoflowers exhibited high specific area and porosity and show high activi…
Addition of neutral R123 molecules (10(-7) M) to an as-prepared gold nanoparticles (AuNPs) suspension generated flocculates that are a small number of closely adjacent particles. Formation of AuNP flocculates was evidenced by the coupled localized plasmon peak at 720-750 nm. The AuNP flocculates provided pronounced SE…
Blinking dynamics of CdSe/ZnS semiconductor quantum dots (QD) are characterized by (truncated) power law distributions exhibiting a wide dynamic range in probability densities and time scales both for off- and on-times. QDs were immobilized on silicon oxide surfaces with varying grades of hydroxylation and silanol gro…
Here we report the synthesis of a novel liquid crystal based on zinc oxide nanoparticles. Due to the presence of fluxional ligands, the hybridized material presents mesomorphic behavior even for a high content of inorganic material. In combination with promising luminescent properties, it may well be exploited for ele…
Hydrogelation of a pyridine derivative (1) possessing tetrazole moieties as end groups, without long alkyl chain groups, results in the formation of a Mg(NO3)2 coordination polymer gel. The polymer exhibits a strong fluorescence enhancement upon gel formation. 1 can also be gelated with a variety of magnesium anions s…
We report on the direct and facile method for noble metal/graphene nano-composites from graphite without reducing agents. In this system, the irradiant white-light instead of the chemical reducing agent exerts the influence on the synthesis of noble metal nanoparticles on graphene. Noble metal salts adsorbed on graphe…
We have utilized lysozyme to non-covalently functionalize and disperse double-walled carbon nanotubes (DWNTs) in aqueous solution. Lysozyme preferentially binds and disperses DWNTs with larger diameters. This is a facile and effective method to fractionalize and enrich DWNTs with certain diameters.
A simple analytical condition for the radiation resistance and conductance (R, G) of an equivalent composite right/ left-handed (CRLH) balanced leaky-wave antenna unit-cell is pro- posed to achieve a constant radiation rate. Similar to the CRLH "balanced condition," which allows a smooth phase transition from the left…
The electron density of an alkyne moiety is enhanced by the photochromic ring closure of a diarylethene derivative, which allows the thermal addition reaction with a small π-acceptor, tetracyanoethylene, at room temperature.
Attapulgite, an extremely stable fibrillar mineral present in nature, is a promising new carrier of luminescent lanthanide complexes for further applications. A europium complex Eu(DBM)(3)(H(2)O)(2) (HDBM = dibenzoylmethane) was covalently coupled onto modified attapulgites (or silica nanoparticles) via a ligand excha…
A sensitive and selective quantum dots (QDs)-based fluorescence resonance energy transfer (FRET) biosensor was successfully fabricated for the detection of the cancer marker type IV collagenase. The cancer marker type IV collagenase could be determined by linking peptide between the donor-luminescent QDs and the accep…
The co-presence of thiol vs. disulfide in the well-known Brust-Schiffrin two-phase synthesis has been identified as a source of size polydispersity in nanoparticles synthesized and a procedure has been proposed to address this long outstanding issue.
The catalytic stability of a Pd–Cu–Clx/Al2O3 catalyst for low temperature CO oxidation was investigated in different conditions. Under ∼0.1% moisture, the CO conversion over the Pd–Cu–Clx/Al2O3 catalyst can be maintained at 100% for 30 h even at 0 °C, but it deactivated reversibly at 25 °C with ∼0.6% moisture and irre…
Eu(2+) singly and Eu(2+), Mn(2+) co-doped Sr(2)Mg(3)P(4)O(15) exhibit not only the well known blue emission band of Eu(2+) peaking at 448 nm but also a new band at 399 nm in violet. They are attributed to Eu(2+) on different Sr(2+) sites. The Eu(2+) for the violet band can transfer energy to the red emitting Mn(2+) mo…
A series of photochromic organogelators based on dithienylcyclopentene amides with a phenylene unit as a bridge between the amide and long alkyl chain were synthesized, their gelation behaviors were characterized by rheology, FT-IR, 1H NMR, SEM, optical microscopy, UV-Vis and fluorescence spectroscopy. These organogel…
Highly regioregular poly{3-[n-(1-methylimidazolium-3-yl)alkyl]thiophene-2,5-diyl bromide} (n = 4, 6, 8) (10–12) has been prepared by reaction of poly[3-(n-bromoalkyl)thiophene-2,5-diyl] (n = 4, 6, 8) (7–9) with 1-methylimidazole. Acid-catalyzed hydrolysis and polycondensation of tetraethoxysilane (TEOS) were carried o…
Supertetrahedral compounds of chalcogenometalates (T3 cluster compounds) integrated with Ni-bpy (bpy = 2,2'-bipyridine) complex were prepared by a solvothermal technique. The compound [Ni(bpy)(3)](3)[H(4)In(10)S(20)]·bpy·2EG·6H(2)O (Mb-InS-1) (EG = ethylene glycol) consists of discrete T3 clusters of [H(4)In(10)S(20)]…