Protection of Photosynthetic Algae against Ultraviolet Radiation by One-Step CeO2 Shellization

• DOI: 10.1021/acs.langmuir.6b04421
• Publication Date: 2017-02-15T14:38:10Z
• Authors: Pengqiang Duan; Tingting Huang; Wei Xiong; Lei Shu; Yuling Yang; Changyu Shao; Xurong Xu; Weimin Ma; Ruikang Tang
• Keywords: Ultraviolet; Nanomaterials; Chlorella vulgaris

Photosynthetic microalgae play an important role in solar-to-chemical energy conversion on Earth, but the increasing solar ultraviolet (UV) radiation seriously reduces biological photosynthesis. Here, we developed a one-step approach to construct cell-in-shell hybrid structure by using direct adsorption of CeO2 nanoparticles onto cells. The engineered nanoshell can efficiently protect enclosed Chlorella cell due its excellent UV filter property, which also eliminate UV-induced oxidative stress. experiments demonstrate that resulted algae-CeO2 composites guarantee their photosynthetic process and efficiency even under UV. This study follows feasible strategy living organisms functional nanomaterials improve functions.