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Metal oxide nanomaterials have been widely applied in the high-performance gas sensors. For metal oxide semiconductors, high surface-to-volume ratio and the exposed crystal facets are the two key factors for determining their gas sensing performances. In order to study the effect of surface structure on the gas sensing properties, in this work, two types of copper oxide (CuO) nanostructures, CuO nanotubes...
Developing a nanoscale drug delivery system with magnetic resonance imaging (MRI)/fluorescence imaging (FL) visibility to optimize the delivery efficiency and therapeutic efficacy under image guidance has attracted great attentions in the area of nanomedicine. Herein, a novel permeable yolk-shell structured gadolinium-doped quantum dots nanocomposite was synthesized as a theranostic nanocarrier via...
This paper reports novel imidazole fluorescent poly(ionic liquid) nanoparticles (FPILNs) of poly(1-[(4-methyphenyl)methyl]-3-vinyl-imidazolium bromide (poly([MVI]Br) for selective and sensitive determination of pyrogallol. An imidazole ionic liquid of 1-[(4-methyphenyl)methyl]-3-vinyl-imidazolium bromide ([MVI]Br) was synthesized and used as the only monomer to obtain poly([MVI]Br) possessing phenyl...
A novel colorimetric and fluorescent iminocoumarin-based turn-off chemosensor for acetate ion was designed and synthesized. The chemosensor could fast detect acetate ion in a 1:1 ratio within 150ms, which could not be affected by various coexisting anions, even F−. Futher studies showed that the detect limit was as low as 2.05×10−7M, and the binding constant was determined to be 1.02×108M−1. Due to...
Polyaniline/active carbon (PANI) and nanometer-sized TiO2 (n-TiO2) were prepared by oxidation and sol–gel methods, respectively, and were then used as a zymophore to modify a glassy carbon electrode (GCE) and a GOx/n-TiO2/PANI/GCE sensor with a synergistic effect was established. A series of performance evaluations for the modified material and sensor was studied in detail through cyclic voltammetry...
A new method for the simultaneous determination of 7 synthetic musks (musk amberette, musk tibetene, musk moskene, musk ketone, musk xylene, phantolide, and tonalide) in cream by means of supporting liquid extraction (SLE) coupled with LC-Alumina-N SPE, then followed by GC–MS/MS has been established. In this study, 7 synthetic musks are extracted and pre-purified by a mixture solution of water and...
It is found that the fluorescence of Tb-adenosine triphosphate (ATP)-phenanthroline (phen) system can be enhanced by Gd 3+ . The fluorescence enhancement of the Tb-Gd-ATP-phen system is considered to originate from intramolecular and intermolecular energy transfers, and the energy-insulating sheath effect of Gd-ATP-phen complex. In addition, a new energy transfer pathway in Tb-ATP-phen...
It is found that the fluorescence intensity of Tb-cetylpyridine bromide (CPB)-nucleic acid system can be enhanced by La 3+ , Gd 3+ , Lu 3+ , Sc 3+ and Y 3+ , of which Gd 3+ has the greatest enhancement. The experiments indicate that under the optimum condition, the fluorescence intensity of the system is in proportion to...
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