Morphological optimization and (3-aminopropyl) trimethoxy silane surface modification of Y3Al5O12:Pr nanoscintillator for biomedical applications

作者：Sengar Prakhar^*; Hirata G A; Farias Mario H; Castillon Felipe

来源：Materials Research Bulletin, 2016, 77: 236-242.

DOI：10.1016/j.materresbull.2016.01.045

• Nanostructures
• Chemical synthesis
• Luminescence
• Surface properties
• Phosphors

The present work details the effect of synthesis route on the morphology, luminescence property and surface functionalizability of Pr3+ doped Y3Al5O12 (YAG:Pr) as a potential nanoscintillator for biomedical applications. Highly crystalline and pure YAG:Pr nanocrystals were synthesized via sol gel (YAG:PrSG) and combustion synthesis (YAG:PrCB) techniques by using metal nitrates as the precursors. The surface of the YAG:Pr nanophosphors was successfully modified with aminopropyltrimethoxysilane (APTMS) and a comparative analysis of the synthesized nanocrystals displayed narrower size distribution, regular morphology and better surface chemistry of YAG:PrSG. Thus, sol gel method produced better nanophosphors with improved properties for further surface functionalization with biomolecules required in biomedical applications.

• 出版日期2016-5