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Gold-nanoparticle-based theranostic ...

Moeendarbari, Sina.

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Gold-nanoparticle-based theranostic agents for radiotherapy of malignant solid tumors.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Gold-nanoparticle-based theranostic agents for radiotherapy of malignant solid tumors./
Author:	Moeendarbari, Sina.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2016,
Description:	161 p.
Notes:	Source: Dissertation Abstracts International, Volume: 78-05(E), Section: B.
Contained By:	Dissertation Abstracts International78-05B(E).
Subject:	Materials science. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10302046
ISBN:	9781369470819

Gold-nanoparticle-based theranostic agents for radiotherapy of malignant solid tumors.
Moeendarbari, Sina.

Gold-nanoparticle-based theranostic agents for radiotherapy of malignant solid tumors. - Ann Arbor : ProQuest Dissertations & Theses, 2016 - 161 p.

Source: Dissertation Abstracts International, Volume: 78-05(E), Section: B.

Thesis (Ph.D.)--The University of Texas at Arlington, 2016.

Radiation therapy is one of the three major methods of cancer treatment. The fundamental goal of radiotherapy is to deliver high radiation doses to targets while simultaneously minimizing doses to critical structures and healthy normal tissues. The aim of this study is to develop a general, practical, and facile method to prepare nanoscale theranostic agents for more efficacious radiation therapy with less adverse side effects. First, a novel type of gold nanoparticle, hollow Au nanoparticles (HAuNPs) which was synthesized using the unique bubble template synthesis method developed in our lab, are studied in vitro and in vivo to investigate their effect as radiosensitizing agents to enhance the radiation dose during external radiotherapy. The results showed the promising potential of using HAuNPs as radiosensitization agents for efficacious treatment of breast cancer. Second, a novel radiolabeling method is developed to incorporate medical radioisotopes to gold nanoparticles. We incorporate palladium-103 (103Pd), a radioisotope currently in clinical brachytherapy, into a hollow gold nanoparticle. The resulting 103Pd Au nanoparticles in the form of a colloidal suspension can be administered by direct injection into tumors, serving as internal radiation sources (nanoseeds) for radiation therapy. The size of the nanoseed, ~150nm in diameter, is large enough to prevent nanoseeds from diffusing into other areas while still small enough to allow them to homogeneously distribute inside the tumor. The therapeutic efficacy of 103Pd Au nanoseeds have been tested when intratumorally injected into a prostate cancer xenograft model. The findings showed that this nanoseed-based brachytherapy has the potential to provide a theranostic solution to unresectable solid tumors. Finally, to make real clinical application more plausible, multi-functional magnetic nanoseeds nanoparticles for imaging-guided radiotherapy are synthesized and characterized.

ISBN: 9781369470819Subjects--Topical Terms:

543314
Materials science.

Gold-nanoparticle-based theranostic agents for radiotherapy of malignant solid tumors.
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