Investigation of the Inertial Cavitation Activity of Sonosensitive and Biocompatible Nanoparticles for Drug Delivery Applications Employing High Intensity Focused Ultrasound
An approach to improve chemotherapy, while minimizing side effects, is a local drug release close to the tumorous tissue. For this purpose, the active drug component is often bound to nanoparticles employed as drug carriers. In the present study, we investigate sonosensitive, biocompatible poly-(L)-...
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Online Access: | https://doi.org/10.1515/cdbme-2019-0147 |
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doaj-1d18394f53e141fcbaa1b26d0ae67ed72021-09-06T19:19:28ZengDe GruyterCurrent Directions in Biomedical Engineering2364-55042019-09-015158558810.1515/cdbme-2019-0147cdbme-2019-0147Investigation of the Inertial Cavitation Activity of Sonosensitive and Biocompatible Nanoparticles for Drug Delivery Applications Employing High Intensity Focused UltrasoundGeorge Benedikt0Fink Michael1Ermert Helmut2Rupitsch Stefan J.3Hiltl Pia T.4Lee Geoffrey5Department of Sensor Technology, Paul-Gordan-Street 3/5,Erlangen, GermanyDepartment of Sensor Technology, Paul-Gordan-Street 3/5,Erlangen, GermanyDepartment of Sensor Technology, Paul-Gordan-Street 3/5,Erlangen, GermanyDepartment of Sensor Technology, Paul-Gordan-Street 3/5,Erlangen, GermanyDepartment of Pharmaceutics, Cauerstraße 4,Erlangen, GermanyDepartment of Pharmaceutics, Cauerstraße 4,Erlangen, GermanyAn approach to improve chemotherapy, while minimizing side effects, is a local drug release close to the tumorous tissue. For this purpose, the active drug component is often bound to nanoparticles employed as drug carriers. In the present study, we investigate sonosensitive, biocompatible poly-(L)-lactic acid (PLA) nanoparticles, which shall be used as drug carriers. For drug release, High Intensity Focused Ultrasound (HIFU) will be employed to introduce inertial cavitation, which separates the active drug component from the drug carrier. The cavitation effect generates an acoustic noise signal, which characterizes the cavitation activity and is expected to serve simultaneously as an indicator for the release of the active drug component. Depending on the ultrasound frequency, different acoustic levels of the inertial cavitation activity were measured. Investigations using a setup for passive cavitation detection (PCD) deliver quantitative results regarding the frequency dependence of the cavitation activity level of nanoparticles and reference media.https://doi.org/10.1515/cdbme-2019-0147ultrasoundcavitationnanoparticlesdrug delivery |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
George Benedikt Fink Michael Ermert Helmut Rupitsch Stefan J. Hiltl Pia T. Lee Geoffrey |
spellingShingle |
George Benedikt Fink Michael Ermert Helmut Rupitsch Stefan J. Hiltl Pia T. Lee Geoffrey Investigation of the Inertial Cavitation Activity of Sonosensitive and Biocompatible Nanoparticles for Drug Delivery Applications Employing High Intensity Focused Ultrasound Current Directions in Biomedical Engineering ultrasound cavitation nanoparticles drug delivery |
author_facet |
George Benedikt Fink Michael Ermert Helmut Rupitsch Stefan J. Hiltl Pia T. Lee Geoffrey |
author_sort |
George Benedikt |
title |
Investigation of the Inertial Cavitation Activity of Sonosensitive and Biocompatible Nanoparticles for Drug Delivery Applications Employing High Intensity Focused Ultrasound |
title_short |
Investigation of the Inertial Cavitation Activity of Sonosensitive and Biocompatible Nanoparticles for Drug Delivery Applications Employing High Intensity Focused Ultrasound |
title_full |
Investigation of the Inertial Cavitation Activity of Sonosensitive and Biocompatible Nanoparticles for Drug Delivery Applications Employing High Intensity Focused Ultrasound |
title_fullStr |
Investigation of the Inertial Cavitation Activity of Sonosensitive and Biocompatible Nanoparticles for Drug Delivery Applications Employing High Intensity Focused Ultrasound |
title_full_unstemmed |
Investigation of the Inertial Cavitation Activity of Sonosensitive and Biocompatible Nanoparticles for Drug Delivery Applications Employing High Intensity Focused Ultrasound |
title_sort |
investigation of the inertial cavitation activity of sonosensitive and biocompatible nanoparticles for drug delivery applications employing high intensity focused ultrasound |
publisher |
De Gruyter |
series |
Current Directions in Biomedical Engineering |
issn |
2364-5504 |
publishDate |
2019-09-01 |
description |
An approach to improve chemotherapy, while minimizing side effects, is a local drug release close to the tumorous tissue. For this purpose, the active drug component is often bound to nanoparticles employed as drug carriers. In the present study, we investigate sonosensitive, biocompatible poly-(L)-lactic acid (PLA) nanoparticles, which shall be used as drug carriers. For drug release, High Intensity Focused Ultrasound (HIFU) will be employed to introduce inertial cavitation, which separates the active drug component from the drug carrier. The cavitation effect generates an acoustic noise signal, which characterizes the cavitation activity and is expected to serve simultaneously as an indicator for the release of the active drug component. Depending on the ultrasound frequency, different acoustic levels of the inertial cavitation activity were measured. Investigations using a setup for passive cavitation detection (PCD) deliver quantitative results regarding the frequency dependence of the cavitation activity level of nanoparticles and reference media. |
topic |
ultrasound cavitation nanoparticles drug delivery |
url |
https://doi.org/10.1515/cdbme-2019-0147 |
work_keys_str_mv |
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