Photoacoustic tracking of photo-magnetically powered nanoparticles for cancer therapy

Fuente: arXiv
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Autores principales: Li, Jiayan, Xu, Chang, Chen, Yingna, Cao, Junmei, Ye, Wanli, Cheng, Yu, Cheng, Qian
Formato: Preprint
Publicado: 2024
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author Li, Jiayan
Xu, Chang
Chen, Yingna
Cao, Junmei
Ye, Wanli
Cheng, Yu
Cheng, Qian
author_facet Li, Jiayan
Xu, Chang
Chen, Yingna
Cao, Junmei
Ye, Wanli
Cheng, Yu
Cheng, Qian
contents The in vivo propulsion and monitoring of nanoparticles (NPs) have received tremendous achievements in the past decade. Developing functional NPs that can be efficiently manipulated inside the human body with a non-invasive tracking modality is critical to clinical translation. This study synthesized a photo-magnetically powered nanoparticle (PMN) with a Fe3O4 core and gold spiky surface. The Au-nanotips ensure PMNs have a strong light absorption in the second near-infrared (NIR) window and produce outstanding photoacoustic signals. The Bio-transmission electron microscopy and simulation results prove that the assembly of PMNs under a magnetic field further enhances the photothermal conversion in cells, contributing to the reduction of ambient viscosity. Photoacoustic imaging (PAI) realized real-time monitoring of PMN movements and revealed that laser plus magnetic coupling couldimprove intratumoral distribution and retention. The proposed methods exhibit excellent potential for the clinical research of cancer nanotherapies.
format Preprint
id arxiv_https___arxiv_org_abs_2410_03404
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Photoacoustic tracking of photo-magnetically powered nanoparticles for cancer therapy
Li, Jiayan
Xu, Chang
Chen, Yingna
Cao, Junmei
Ye, Wanli
Cheng, Yu
Cheng, Qian
Biological Physics
Medical Physics
The in vivo propulsion and monitoring of nanoparticles (NPs) have received tremendous achievements in the past decade. Developing functional NPs that can be efficiently manipulated inside the human body with a non-invasive tracking modality is critical to clinical translation. This study synthesized a photo-magnetically powered nanoparticle (PMN) with a Fe3O4 core and gold spiky surface. The Au-nanotips ensure PMNs have a strong light absorption in the second near-infrared (NIR) window and produce outstanding photoacoustic signals. The Bio-transmission electron microscopy and simulation results prove that the assembly of PMNs under a magnetic field further enhances the photothermal conversion in cells, contributing to the reduction of ambient viscosity. Photoacoustic imaging (PAI) realized real-time monitoring of PMN movements and revealed that laser plus magnetic coupling couldimprove intratumoral distribution and retention. The proposed methods exhibit excellent potential for the clinical research of cancer nanotherapies.
title Photoacoustic tracking of photo-magnetically powered nanoparticles for cancer therapy
topic Biological Physics
Medical Physics
url https://arxiv.org/abs/2410.03404