Gas-stabilizing gold nanocones for acoustically mediated drug delivery
The efficient penetration of drugs into tumors is a major challenge that remains unmet. Reported herein is a strategy to promote extravasation and enhanced penetration using inertial cavitation initiated by focused ultrasound and cone-shaped gold nanoparticles that entrap gas nanobubbles. The cones...
| Hlavní autoři: | , , , , , |
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| Médium: | Journal article |
| Jazyk: | English |
| Vydáno: |
Wiley
2018
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| _version_ | 1826263549551312896 |
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| author | Mannaris, C Teo, B Seth, A Bau, L Coussios, C Stride, E |
| author_facet | Mannaris, C Teo, B Seth, A Bau, L Coussios, C Stride, E |
| author_sort | Mannaris, C |
| collection | OXFORD |
| description | The efficient penetration of drugs into tumors is a major challenge that remains unmet. Reported herein is a strategy to promote extravasation and enhanced penetration using inertial cavitation initiated by focused ultrasound and cone-shaped gold nanoparticles that entrap gas nanobubbles. The cones are capable of initiating inertial cavitation under pressures and frequencies achievable with existing clinical ultrasound systems and of promoting extravasation and delivery of a model large therapeutic molecule in an in vitro tissue mimicking flow phantom, achieving penetration depths in excess of 2 mm. Ease of functionalization and intrinsic imaging capabilities provide gold with significant advantages as a material for biomedical applications. The cones show neither cytotoxicity in Michigan Cancer Foundation (MCF)-7 cells nor hemolytic activity in human blood at clinically relevant concentrations and are found to be colloidally stable for at least 5 d at 37 °C and several months at 4 °C. |
| first_indexed | 2024-03-06T19:53:33Z |
| format | Journal article |
| id | oxford-uuid:24c852e6-a85b-4bc3-b511-39fb881b42dd |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:53:33Z |
| publishDate | 2018 |
| publisher | Wiley |
| record_format | dspace |
| spelling | oxford-uuid:24c852e6-a85b-4bc3-b511-39fb881b42dd2022-03-26T11:52:00ZGas-stabilizing gold nanocones for acoustically mediated drug deliveryJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:24c852e6-a85b-4bc3-b511-39fb881b42ddEnglishSymplectic Elements at OxfordWiley2018Mannaris, CTeo, BSeth, ABau, LCoussios, CStride, EThe efficient penetration of drugs into tumors is a major challenge that remains unmet. Reported herein is a strategy to promote extravasation and enhanced penetration using inertial cavitation initiated by focused ultrasound and cone-shaped gold nanoparticles that entrap gas nanobubbles. The cones are capable of initiating inertial cavitation under pressures and frequencies achievable with existing clinical ultrasound systems and of promoting extravasation and delivery of a model large therapeutic molecule in an in vitro tissue mimicking flow phantom, achieving penetration depths in excess of 2 mm. Ease of functionalization and intrinsic imaging capabilities provide gold with significant advantages as a material for biomedical applications. The cones show neither cytotoxicity in Michigan Cancer Foundation (MCF)-7 cells nor hemolytic activity in human blood at clinically relevant concentrations and are found to be colloidally stable for at least 5 d at 37 °C and several months at 4 °C. |
| spellingShingle | Mannaris, C Teo, B Seth, A Bau, L Coussios, C Stride, E Gas-stabilizing gold nanocones for acoustically mediated drug delivery |
| title | Gas-stabilizing gold nanocones for acoustically mediated drug delivery |
| title_full | Gas-stabilizing gold nanocones for acoustically mediated drug delivery |
| title_fullStr | Gas-stabilizing gold nanocones for acoustically mediated drug delivery |
| title_full_unstemmed | Gas-stabilizing gold nanocones for acoustically mediated drug delivery |
| title_short | Gas-stabilizing gold nanocones for acoustically mediated drug delivery |
| title_sort | gas stabilizing gold nanocones for acoustically mediated drug delivery |
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