Dual plasmonic gold nanostars for photoacoustic imaging and photothermal therapy-Reference-Cited by-同舟云学术

Dual plasmonic gold nanostars for photoacoustic imaging and photothermal therapy

Published:2017-03 Issue:5 Volume:12 Page:457-471
ISSN:1743-5889
Container-title:Nanomedicine
language:en
Short-container-title:Nanomedicine

Author:

Raghavan Vijay¹,O'Flatharta Cathal²,Dwyer Roisin³,Breathnach Aedán⁴,Zafar Haroon⁴,Dockery Peter⁵,Wheatley Antony⁶,Keogh Ivan⁷,Leahy Martin⁴⁸⁹,Olivo Malini¹¹⁰

Affiliation:

1. School of Physics, National University of Ireland Galway, Ireland

2. Regenerative Medicine Institute (REMEDI), School of Medicine, National University of Ireland, Galway, Ireland

3. Discipline of Surgery, Lambe Institute for Translational Research, National University of Ireland Galway, Ireland

4. Tissue Optics & Microcirculation Imaging Facility, National University of Ireland, Galway, Ireland

5. Anatomy, National University of Ireland, Galway, Ireland

6. Physiology, National University of Ireland, Galway, Ireland

7. Department of Surgery, National University of Ireland, Galway, Ireland

8. Royal College of Surgeons (RCSI), Dublin, Ireland

9. National Biophotonics & Imaging Platform, Dublin, Ireland

10. Bio-optical Imaging Group, Singapore Bioimaging Consortium, Agency for Science, Technology & Research, Singapore

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.

Publisher

Future Medicine Ltd

Subject

Development,General Materials Science,Biomedical Engineering,Medicine (miscellaneous),Bioengineering

Link

https://www.futuremedicine.com/doi/pdf/10.2217/nnm-2016-0318

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