Single-Step Metal-Free Grafting of Cationic Polymer Brushes on Fluorescent Nanodiamonds

Materials

Shingo Sotoma¹  Feng-Jen Hsieh¹  Huan-Cheng Chang¹ 

[1] Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 106, Taiwan;

关键词: cationic polymer;    cell labeling;    fluorescence imaging;    nanodiamond;    ring-opening reaction;   

DOI  :  10.3390/ma11081479

来源: DOAJ

【 摘 要 】

Cationic polymers are often employed in conjugation with nanomaterials, and the resultant hybrids are useful for various bioapplications. Here, a single-step metal-free method for the synthesis of fluorescent nanodiamonds (FNDs) conjugated with cationic polymer brushes is reported. Distinct from the common methods such as atom transfer radical polymerization and reversible addition fragmentation chain transfer, our ring-opening-polymerization-based method is simple and less time consuming and hazardous. Infrared spectroscopy, thermogravimetric analysis, zeta potential, and dynamic light scattering confirmed the synthesis. The produced FND-polymer brushes showed markedly higher cell labeling and internalization efficiency without noticeable cytotoxicity. Our method is general and applicable to other nanoparticles as well for uses in diverse research areas.

【 授权许可】

Unknown