Carbon quantum dots (CQDs) are photostable, highly photoluminescent nanomaterials (size≤10 nm; high Φs) throughout the blue-to-red spectral region; their photophysical properties can be tuned by manipulating sizes and shapes, doping surface passivation. The unequivocal biocompatibility low-toxicity of CQDs have made them useful in bioimaging, drug delivery, chemical sensing. They synthesized fr...

The importance of solid-state diffusion and crystal growth of the solid product in a gas-solid reaction with solid product formation (GSRSPF) are discussed with direct sulfation of limestone as a representative example. A GSRSPF usually involves nucleation and crystal growth of the solid product, which are necessary processes for the formation of the new phase of the solid product. Solid-state ...

A new family of pyrimidine-based BF2 complexes () with aggregation-induced emission (AIE) and mechanochromic luminescence properties were developed. These compounds exhibit intense fluorescence in their aggregation/solid-state resulting from their large Stokes shift and AIE. X-ray crystallographic analysis shows that the weak intermolecular interactions by fixing the molecular conformations of ...

This study reports the synthesis and comparative investigation of the substituent effects of a new series of highly luminescent homoleptic tris-cyclometalated iridium(III) complexes of the type [Ir(N˄C)₃]. These are based on two ligand type derivatives comprising of 4-fluorophenylvinylquinolines and 4-methoxyphenylvinylquinolines with electron-donating and/or electron-withdrawing groups as aryl...

background bleaching of traumatized discolored teeth is considered an important issue in esthetic dentistry. various methods have been introduced for bleaching, some of which may have adverse effects on soft or hard tissues of the tooth. objectives the objective of the study was to evaluate the effects of ktp laser bleaching on enamel of traumatized teeth. materials and methods a square of 36 m...