Resumen
The present invention relates to a method for the synthesis of porous silicon nanoparticles which exhibit long-lasting photoluminescence. The present invention provides a method for the synthesis of porous silicon nanoparticles with photoluminescence, characterised in that it comprises the following steps: i) providing porous silicon sheets and performing a heat treatment at 250-350°C for 4-6 minutes, and ii) scraping the sheets obtained from step i) and sonicating the sheets dissolved in deionised water. The method may also comprise another additional step in which the nanoparticles are functionalised. This method makes the nanoparticles obtained biocompatible and can be used in in-vivo or in-vitro applications as selective biological markers and nanodevices for the controlled release of drugs systemically or in target cells. (Machine-translation by Google Translate, not legally binding)