Regulating the absorption spectrum of polydopamine

Polydopamine (PDA) has been increasingly exploited as an advanced functional material, and its emergent light absorption property plays a crucial role in determining various utilizations. However, the rational design and efficient regulation of PDA absorption property remain a challenge due to the complex structure within PDA. In this work, we propose a facile method to regulate the light absorption behaviors of PDA by constructing donor-acceptor pairs within the microstructures through the chemical connections between indoledihydroxy/indolequinone and their oligomers with 2,2,6,6-tetramethylpiperidine-1-oxyl moiety. The detailed structural and spectral analysis, as well as the density functional theory…

• NN
  National Natural Science Foundation of China

  Award: 21975167 and 21774079
• NK
  National Key Research and Development Program of China Stem Cell and Translational Research

  Award: 2019YFA0904500