Assemblies of semiconductor quantum dots and light-harvesting-complex II

作者：Erker Wolfgang; Boggasch Stephanie; Xie Renguo; Grundmann Goetz; Paulsen Harald; Basche Thomas^*

来源：Journal of Luminescence, 2010, 130(9): 1624-1627.

DOI：10.1016/j.jlumin.2009.12.002

• Semiconductor quantum dots
• Fluorescence quenching
• Light-harvesting complex
• Site-directed mutagenesis

A novel hybrid system composed of fluorescent core/shell semiconductor quantum dots and the light harvesting complex II (LHCIIb), a membrane protein of higher plants, has been assembled. Experiments with different mutants show that hybrid formation can be mediated by a C-terminal His(6) tag attached to the protein as well as by positive charges of the first N-terminal amino acids of LHCIIb. Quenching of the quantum dot fluorescence upon binding of LHCIIb was partially attributed to energy transfer from the quantum dots to LHCIIb.

• 出版日期2010-9