Small 2015 Jan 10;11(3):295-9. Epub 2014 Sep 10.
Institut Charles Gerhardt Montpellier, UMR-5253, CNRS-UM2-ENSCM-UM1, cc 1701, Place Eugène Bataillon, F-34095, Montpellier cedex 05, France.
A two-photon photosensitizer with four triethoxysilyl groups is synthesized through the click reaction. This photosensitizer allows the design of bridged silsesquioxane (BS) nanoparticles through a sol-gel process; moreover, gold core BS shells or BS nanoparticles decorated with gold nanospheres are synthesized. An enhancement of the two-photon properties is noted with gold and the nanoparticles are efficient for two-photon imaging and two-photon photodynamic therapy of cancer cells.