Aqueous Synthesis for Highly Emissive 3-Mercaptopropionic Acid-Capped AIZS Quantum Dots.

Highly fluorescent and color tunable AgInS (AIS) and (AgInS)(ZnS) (AIZS) quantum dots (QDs) were prepared via a facile aqueous-phase synthesis using AgNO, In(NO), Zn(OAc), and NaS as precursors and 3-mercaptopropionic acid (3-MPA) as ligand. Produced AIZS QDs exhibit a small diameter (ca. 2.

High performance Ce-doped ZnO nanorods for sunlight-driven photocatalysis.

Ce-doped ZnO (ZnO:Ce) nanorods have been prepared through a solvothermal method and the effects of Ce-doping on the structural, optical and electronic properties of ZnO rods were studied. ZnO:Ce rods were characterized by XRD, SEM, TEM, XPS, BET, DRS and Raman spectroscopy. 5% Ce-doped ZnO rods with an average length of 130 nm and a diameter of 23 nm exhibit the highest photocatalytic activity for the degradation of the Orange II dye under solar light irradiation.

A facile method for the preparation of bifunctional Mn:ZnS/ZnS/Fe3O4 magnetic and fluorescent nanocrystals.

Bifunctional magnetic and fluorescent core/shell/shell Mn:ZnS/ZnS/Fe3O4 nanocrystals were synthesized in a basic aqueous solution using 3-mercaptopropionic acid (MPA) as a capping ligand. The structural and optical properties of the heterostructures were characterized by X-ray diffraction (XRD), dynamic light scattering (DLS), transmission electron microscopy (TEM), UV-vis spectroscopy and photoluminescence (PL) spectroscopy. The PL spectra of Mn:ZnS/ZnS/Fe3O4 quantum dots (QDs) showed marked visible emission around 584 nm related to the (4)T1 → (6)A1 Mn(2+) transition.

[Tuberculosis of the breast: a rare often unrecognized diagnosis].

Unlabelled: Tuberculosis of the breast (BT) is a rare extrapulmonary localization for tuberculosis that mainly affects young women during their child-bearing years.

Objective: We report eight cases of BT and describe its clinical characteristics, outcomes, and differential diagnoses.

Patients And Methods: This retrospective study collected all cases of BT diagnosed at our hospital's infectious disease department in Tunisia from 2000 through 2009.