Plant tissue imaging with bipyramidal upconversion nanocrystals by introducing Tm<sup>3+</sup> ions as energy trapping centers
Yufang Qiao, Shuqian Qiao, Xue Yu, Qiuhong Min, Chaojie Pi, Jianbei Qiu, Hongqing Ma, Jianhong Yi, Qiuqiang Zhan, Xuhui Xu
Abstract
ions permits alleviation of the energy loss at defective sites and a significant improvement of the upconversion output. The as-obtained bipyramidal UCNPs could readily puncture plant cell walls and further penetrate into cell membranes, facilitating improved tissue imaging of cellular internalization, as demonstrated with the luminescence images obtained by multiphoton laser-scanning microscopy. Hence our work opens up a new avenue for exploring effective upconversion nanoparticles for achieving high resolution imaging of plant tissues.
Topics & Concepts
Photon upconversionNanocrystalIonMaterials scienceTrappingOptoelectronicsNanotechnologyChemistryLuminescenceBiologyEcologyOrganic chemistryLuminescence Properties of Advanced MaterialsLuminescence and Fluorescent MaterialsNanoplatforms for cancer theranostics