Abstract
Aim: To fabricate multimodal nanoconstruct that act as a single node for photoacoustic imaging (PAI) and photothermal therapy (PTT) in the fight against cancer. Materials methods: Dual plasmonic gold nanostars (DPGNS) were chemically synthesized by reducing gold precursor using ascorbic acid and silver ions as shape directing agent. PAI and PTT were performed using commonly available 1064 nm laser source on DPGNS embedded tumor xenografts on mice. Results conclusion: Photoacoustic amplitude increase with longer wavelength source and with silica coating of DPGNS. The in vivo photothermal capability of DPGNS resulted in a significant decrease in the tumor cellular area. DPGNS exhibited potential for single node diagnosis and therapy with longer wavelength facilitating deeper imaging and therapy.
| Original language | English (Ireland) |
|---|---|
| Pages (from-to) | 457-471 |
| Number of pages | 15 |
| Journal | Nanomedicine |
| Volume | 12 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 1 Mar 2017 |
Keywords
- gold nanostar
- near infrared imaging
- optical window
- photoacoustic imaging
- photothermal therapy
- plasmonic nanoparticles
- silica shell
- surface plasmon resonance
Authors (Note for portal: view the doc link for the full list of authors)
- Authors
- Raghavan, V,O'Flatharta, C,Dwyer, R,Breathnach, A,Zafar, H,Dockery, P,Wheatley, A,Keogh, I,Leahy, M,Olivo, M
- Raghavan, V;O'Flatharta, C;Dwyer, R;Breathnach, A;Zafar, H;Dockery, P;Wheatley, A;Keogh, I;Leahy, M;Olivo, M
- Raghavan, V. and O'Flatharta, C. and Dwyer, R. and Breathnach, A. and Zafar, H. and Dockery, P. and Wheatley, A. and Keogh, I. and Leahy, M. and Olivo, M.
