نتایج جستجو برای: bnct

تعداد نتایج: 489  

2014
María E. Capoulat María S. Herrera Daniel M. Minsky

A project aimed at the development of an accelerator facility devoted to Boron Neutron Capture Therapy (BNCT) is ongoing at the National Atomic Energy Commission of Argentina [1]. In a first stage of development, the accelerator will be capable of delivering proton or deuteron beams of 30 mA at about 1.4 MeV which is suitable for neutron production through the 9Be(d,n) reaction. In this context...

2003
P. Colautti V. Conte L. De Nardo E. Seravalli G. Tornielli

Boron Neutron Capture Therapy (BNCT) is a rather innovative cancer radiotherapy; at present it is object of increasing interest especially for treatment of those tumors where conventional therapy gives not satisfactory results (Glioblastoma and Malignant Melanoma). The therapy takes advantage of both chemical and physical aspects B: the possibility of selectively accumulating in tumor tissue th...

2017
Charles A Maitz Aslam A Khan Peter J Kueffer John D Brockman Jonathan Dixson Satish S Jalisatgi David W Nigg Thomas A Everett M Frederick Hawthorne

Boron neutron capture therapy (BNCT) was performed at the University of Missouri Research Reactor in mice bearing CT26 colon carcinoma flank tumors and the results were compared with previously performed studies with mice bearing EMT6 breast cancer flank tumors. Mice were implanted with CT26 tumors subcutaneously in the caudal flank and were given two separate tail vein injections of unilamella...

Journal: :Cancer research 1996
D R Smith S Chandra J A Coderre G H Morrison

Boron neutron capture therapy (BNCT), a binary treatment modality that can potentially irradiate tumor tissue within cellular dimensions, is critically dependent on the preferential delivery of 10B to individual neoplastic cells. In this study, ion microscopy was used to quantitatively evaluate the selectivity of p-boronophenylalanine-fructose (BPA-F) in the rat 9L gliosarcoma brain tumor model...

2017
Tiago H. Ferreira Marcelo C. Miranda Zildete Rocha Alexandre S. Leal Dawidson A. Gomes Edesia M. B. Sousa

Currently, nanostructured compounds have been standing out for their optical, mechanical, and chemical features and for the possibilities of manipulation and regulation of complex biological processes. One of these compounds is boron nitride nanotubes (BNNTs), which are a nanostructured material analog to carbon nanotubes, but formed of nitrogen and boron atoms. BNNTs present high thermal stabi...

Journal: :Bioconjugate chemistry 2008
Thomas Betzel Tobias Hess Beatrice Waser Jean-C Reubi Frank Roesch

Despite the improvements in cancer therapy during the past years, high-grade gliomas and many other types of cancer are still extremely resistant to current forms of therapy. Boron neutron capture therapy (BNCT) provides a promising way to destroy cancer cells without damaging healthy tissue. However, BNCT in practice is still limited due to the lack of boron-containing compounds that selective...

2008
R. J. Donahue J. Kwan T. L. Phillips L. L. Reginato B. A. Ludewigt W. T. Chu

An accelerator-based BNCT facility is under development at the Lawrence Berkeley National Laboratory. Neutrons will be produced via the 7Li(p,n) reaction at proton energies of about 2.5 MeV with subsequent moderation and filtering for shaping epithermal neutron beams for BNCT. Moderator, filter, and shielding assemblies have been modeled using MCNP. Head-phantom dose distributions have been cal...

2017
Yoshiaki Watanabe Hiroaki Kurihara Jun Itami Ryohei Sasaki Yasuaki Arai Kazuro Sugimura

BACKGROUND AND PURPOSE The purpose of this study was to determine the distribution of 4-borono-2-18F-fluoro-phenylalanine (18F-BPA) and L-[methyl-11C] methionine (11C-Met) in normal organs and tumors and to evaluate the usefulness of 11C-Met/PET in screening potential candidates for boron neutron capture therapy (BNCT). MATERIAL METHODS Seven patients who had at least one histologically confi...

2008
Gianni Ciofani Vittoria Raffa Arianna Menciassi Alfred Cuschieri

Boron neutron capture therapy (BNCT) is increasingly being used in the treatment of several aggressive cancers, including cerebral glioblastoma multiforme. The main requirement for this therapy is selective targeting of tumor cells by sufficient quantities of (10)B atoms required for their capture/irradiation with low-energy thermal neutrons. The low content of boron targeting species in gliobl...

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