Department of Chemistry and 4D LABS, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6 (Canada).
Angew Chem Int Ed Engl. 2013 Oct 11;52(42):11106-9. doi: 10.1002/anie.201305253. Epub 2013 Aug 23.
Sun block for nanoparticles: Unintentional photorelease triggered by UV light is a problem in photodynamic therapy. Encapsulating upconverting nanoparticles containing photoswitches in a UV-blocking amphiphilic polymer shuts down the one-photon process and only allows two-photon-driven photochemistry. Thus, UV light is blocked while NIR light can reach the nanoparticle core and trigger photorelease.
由紫外光引发的非故意光致释放是光动力疗法中的一个问题。将含有光开关的上转换纳米粒子包封在具有紫外光阻断作用的两亲聚合物中，可关闭单光子过程，仅允许双光子驱动光化学反应。因此，紫外光被阻断，而近红外光可以到达纳米颗粒核心并引发光致释放。
