نتایج جستجو برای: gold nanoparticles proton therapy

تعداد نتایج: 880262  

2011
Kamyar Mollazadeh-Moghaddam Bardia Varasteh Moradi Reza Dolatabadi-Bazaz Mojtaba Shakibae Ahmad Reza Shahverdi

Today, there is an increasing interest in the use of metal nanoparticles in health sciences. Amongst all nanoparticles, the gold nanoparticles have been known to kill the cancer cells under hyperthermic condition by near-infrared frequency electromagnetic waves. On the other hand, although there are different physiochemical methods for disinfection of microbial pollution, however applications o...

ژورنال: سنجش و ایمنی پرتو 2020

Unlike proton therapy, conventional radiation therapy directs X-rays not only at the tumor but also unavoidably at nearby healthy tissue. Protons deliver radiation to tumor tissue while the healthy structures will be spared during proton therapy. When protons travel through matter, secondary particles like neutrons and photons are produced. It is believed that the secondary dose can lead to sec...

2013
Limor Minai Daniella Yeheskely-Hayon Dvir Yelin

Cancer cells could be locally damaged using specifically targeted gold nanoparticles and laser pulse irradiation, while maintaining minimum damage to nearby, particle-free tissue. Here, we show that in addition to the immediate photothermal cell damage, high concentrations of reactive oxygen species (ROS) are formed within the irradiated cells. Burkitt lymphoma B cells and epithelial breast can...

Journal: :iranian journal of radiation research 0
a. esmaili torshabi medical physics group, department of electrical and computer engineering, graduate university of advanced technology, haftbagh st. 7631133131, kerman, iran

background: in radiation treatment of moving targets located in thorax region of patient body, the delivered dose does not match with the planned treatment, resulting in some over and under dosage in the tumor volume, as a function of motion magnitude and frequency. several efforts have been done to investigate the target motion effects on dose distribution in the target and surrounding normal ...

Journal: :Bulletin of Russian State Medical University 2018

Journal: :Dalton transactions 2012
Pablo Botella Ilida Ortega Manuel Quesada Roque F Madrigal Carlos Muniesa Antonio Fimia Eduardo Fernández Avelino Corma

Combined chemo and photothermal therapy in in vitro testing has been achieved by means of multifunctional nanoparticles formed by plasmonic gold nanoclusters with a protecting shell of porous silica that contains an antitumor drug. We propose a therapeutic nanoplatform that associates the optical activity of small gold nanoparticles aggregates with the cytotoxic activity of 20(S)-camptothecin s...

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