Developing dual-state ultra-efficient emissive carbon dots as internal and external artificial antenna of chloroplasts to enhance plant-photosynthesis  

作　　者：Shijie Zhao Hongyang Wang Jiuxing He Linlin Dong Tianyou Xie Yang Luo Jie Li Patrick Osei Lartey Kunpeng Guo Jialei Liu 

机构地区：[1]Ministry of Education Key Laboratory of Interface Science and Engineering in Advanced Materials,Taiyuan University of Technology,Taiyuan,Shanxi,P.R.China [2]Institute of Environment and Sustainable Development in Agriculture,Chinese Academy of Agricultural Science,Beijing,P.R.China

出　　处：《Aggregate》2024年第6期284-293,共10页聚集体(英文)

基　　金：National Natural Science Foundation of China,Grant/Award Number:22372114;National Key Research and Development Program of China,Grant/Award Number:2023YFD2202104;Science and Technology Project of Xinjiang Uygur Autonomous Region,Grant/Award Numbers:2022B02033-3,2022B02049-3-3;Natural Science Foundation of Shanxi Province,Grant/Award Number:202203021211143。

摘　　要：Introducing fluorescent nanomaterials as artificial antennas of chloroplasts offers a promising approach to enhancing light harvesting in photosynthesis.However,this technology is limited by the dependence of the fluorescence efficiency of nanomaterials on dispersed states that cannot enable nanomaterials inside and outside leaves to play an antenna role.Here,we developed solution and solid dual-state ultra-efficient blue emissive carbon dots(DuB_(2)-CDs)by regulating the content of graphitic-N,surface hydroxyl groups.and C–Si bonds based on a four-component microwave synthesis.The as-prepared DuB_(2)-CDs showed intense blue emission in aqueous solution and solid state,with absolute photoluminescence quantum yields of 84.04%and 95.69%,respectively.These features guaranteed that the internal(DuB_(2)-CDs infiltrating the mesophyll system)and external(DuB_(2)-CDs remaining on the surface of leaves)artificial antennas can simultaneously enhance the solar energy utilization efficiency of chloroplasts.Compared with the control groups without antenna use and internal antenna use only,the foliar application of DuB_(2)-CDs substantially enhanced the electron-transport rate,net photosynthesis rate,psbA gene expression,NADPH production,and other plant physiological parameters of living plant during photosynthesis.This work provided a promising strategy for realizing dual-state ultra-efficient emissive CDs while maximizing living plant-photosynthesis augmentation.

关 键 词：artificial antennas carbon dots plant-photosynthesis augmentation solar energy capture ultra-efficient emission 

分 类 号：TN9[电子电信—信息与通信工程]