The pure and PVA capped ZnS nanocrystals were synthesized by hydrothermal method using zinc nitrate and thioacetamide as the zinc source and sulphur source respectively. The XRD patterns confirmed the formation of cubic phase ZnS nanoparticles with particle sizes 32.6nm and 30.6nm respectively for the pure and PVA capped nanocrystals. The SEM micrographs show the improvement in the particle siz...

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 photoluminescence (PL) spectra of CdSe/CdS/ZnS core-shell-shell QDs showed the dominant ex...

The ZnS-Bi-TiO2 composites were prepared by the sol-gel method and were characterized by X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), X-ray diffraction (XRD) and UV-visible diffuse reflectance spectroscopy (UV-Vis DRS). It is found that the doped Bi as Bi(4+)/Bi(3+) species existed in composites, and the introducing of ZnS enhanced further the light absorption...

Fluid phase endocytic uptake of external solutes in plant cells was further substantiated using artificial polystyrene nano-spheres (40 nm) and CdSe/ZnS quantum dots (20 nm). Both types of artificial nano-particles were taken up by sycamore-cultured cells. However, whereas polystyrene nano-spheres were delivered to the central vacuole, CdSe/ZnS nano-dots were sequestered into cytoplasmic vesicu...

Zonisamide (ZNS) is a sulphonamide antiepileptic drug (AED) used to treat epilepsy around the world. Recent studies suggested that ZNS is an effective treatment for motor and nonmotor symptoms of Parkinson’s disease (PD) (for a review). However, only one randomized, double-blind, multicentre, placebo-controlled study conducted in Japan demonstrated the efficacy of ZNS as add-on administration i...

Abstract In this work, we focus on the colloidal quantum dot based light-emitting diodes (QD-LEDs) performance. First, synthesize spherical QDs with a CdS core that covered wider band gap II–VI semiconductor acting as shell (ZnS). order to nano crystal structure of CdS/ZnS/CdS/ZnS, use reverse micelle process. These four-layer well dots (QWQDs) can generate white light emission. The positional ...

Ambient S annealing was adopted to regulate the crystallinity of a ZnS microsphere, which resulted in a significant improvement in the photocatalytic hydrogen production activity (PHPA). Moreover, with S ambient treatment, wurtzite ZnS showed better PHPA than sphalerite ZnS, possibly because the inter-polar electric field of the wurtzite phase could promote the separation of photo-excited elect...

Hexagonal wurtzite ZnS nanowires radially arrayed on cubic zinc-blende ZnS hollow spheres have been successfully achieved for the first time, and such novel heterogeneous ZnS hollow urchin-like hierarchical nanostructures show greatly enhanced photocatalytic properties due to their two-phase enhanced light-harvesting and high surface-to-volume ratio.

A ZnS(Ag) detector was successfully used in the direct detection of alpha particles from aqueous solutions and the results were compared to the passivated ion implanted planar silicon (PIPS) continuous air monitor (CAM) detector. The ZnS(Ag) detector is recommended for on-line detection of gross alpha radioactivity from highlevel liquid waste process streams; however, the detector suffers from ...