Zhongwei Li

ABSTRACTThis paper reconstructs and defends a Husserlian transcendental conception of intentionality. Initially, naturalistic conception of intentionality seems attractive, however, a naturalistic understanding conceals the true meaning of the puzzle and the nature of intentionality. Following Kant and primarily Husserl, this paper tries to determine the conditions a transcendental conception of intentionality must satisfy in order to be qualified as “transcendental”. Additionally, following Husserl, this paper argues that the alternative transcendental conception is not only possible, hence plausible; but also necessary, in the sense that a thorough understanding of intentionality can only be achieved if a transcendental conception is adopted.

© 2015 American Chemical Society.Near-infrared dye-sensitized upconversion nanoparticles can broaden the absorption range and boost upconversion efficiency of UCNPs. Here, we achieved significantly enhanced upconversion luminescence in dye-sensitized core/active shell UCNPs via the doping of ytterbium ions in the UCNP shell, which bridged the energy transfer from the dye to the UCNP core. As a result, we synergized the two most practical upconversion booster effectors to amplify upconversion efficiency. We demonstrated two biomedical applications using these UCNPs. By using dye-sensitized core/active shell UCNP embedded poly polymer implantable systems, we successfully shifted the optogenetic neuron excitation window to a biocompatible and deep tissue penetrable 800 nm wavelength. Furthermore, UCNPs were water-solubilized with Pluronic F127 with high upconversion efficiency and can be imaged in a mouse model.