The synthesis, photophysical properties and application as emitters in solution-processed multi-layer organic light-emitting diodes (OLEDs) of a series of blue-green to red light-emitting phosphorescent platinum(II) complexes are reported. These complexes consist of phenylisoquinoline, substituted phenylpyridines or tetrahydroquinolines as C^N cyclometalating ligands and dipivaloylmethane as an ancillary ligand. Depending on both the structure of the C^N cyclometalating ligands and the dopant concentration in the matrix, these platinum(II) complexes exhibit different aggregation tendencies.
View Article and Find Full Text PDFThe first fluorescent material for the referenced simultaneous RGB (red green blue) imaging of barometric pressure (oxygen partial pressure) and temperature is presented. This sensitive coating consists of two platinum(II) complexes as indicators and a reference dye, each of which is incorporated in appropriate polymer nanoparticles. These particles are dispersed in a polyurethane hydrogel and spread onto a solid support.
View Article and Find Full Text PDFThe synthesis and photophysical properties of a series of yellow-green to blue-green emitting heteroleptic, cyclometalated Pt(II)(acac) complexes based on substituted phenylpyridine and tetrahydroquinoline ligands is reported. The luminescence intensities and lifetimes of these compounds were also studied in poly(styrene) films with respect to their responses to oxygen and temperature. Particularly, due to the insensitivity to oxygen quenching, these complexes are promising candidates as inert reference dyes in optical sensors.
View Article and Find Full Text PDFJ Pediatr Hematol Oncol
December 2011
Primary hepatic non-Hodgkin lymphoma is extremely rare in childhood and can be overlooked in differential diagnosis of liver masses. In this study, we describe an unusual case of primary hepatic Burkitt lymphoma in childhood.
View Article and Find Full Text PDFIn this study, colonic manometry studies of the patients with repaired anorectal malformations (ARM) were compared with those of patients with severe colonic dismotility due to chronic constipation (CC) and acute pseudo-obstruction (PSO). The patients with repaired ARM were accepted as group #1 (n=10). The patients with CC and acute PSO composed group #2 (n=10).
View Article and Find Full Text PDFUreteral injuries represent less than 1% of all traumatic genitourinary injuries. The rarity of traumatic ureteral injury is at least in part because the ureters are relatively well protected in the retroperitoneum. Ureteral injuries after blunt trauma are not common, and bilateral disruption of the ureteropelvic junction (UPJ) has only been previously reported in just one child.
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