A Facile, One-Step Nanocarbon Functionalization for Biomedical Applications
- A Facile, One-Step Nanocarbon Functionalization for Biomedical Applications
- 최기영; Magdalena Swierczewska; Edward L. Mertz; Xinglu Huang; Fan Zhang; Lei Zhu; 박재형; Ashwinkumar Bhirde; 이슬기; Xiaoyuan Chen; Hong Yeol Yoon
- Issue Date
- Nano letters
- VOL 12, NO 7-3620
- Despite their immense potential in biomedicine, carbon nanomaterials suffer from inefficient dispersion and biological activity in vivo. Here we utilize a single, yet multifunctional, hyaluronic acid-based biosurfactant to simultaneously disperse nanocarbons and target single-walled carbon nanotubes (SWCNTs) to CD44 receptor positive tumor cells with prompt uptake. Cellular uptake was monitored by intracellular enzyme-activated fluorescence, and localization of SWCNTs within cells was further confirmed by Raman mapping. In vivo photoacoustic, fluorescence, and positron emission tomography imaging of coated SWCNTs display high tumor targeting capability while providing long-term, fluorescence molecular imaging of targeted enzyme events. By utilizing a single biomaterial surfactant for SWCNT dispersion without additional bioconjugation, we designed a facile technique that brings nanocarbons closer to their biomedical potential.
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