Results 111 to 120 of about 54,722 (268)

Synergy effect of alpha particles by using natural boron in proton therapy: Computational verification

AIP Advances, 2019
The use of boron (11B) is recently being investigated to be applied in proton therapy as a proton boron fusion dose enhancement agent. Alpha particles are emitted from the p + 11B → 3α fusion (PBF) reaction analogous to the 10B(n,7Li)α capture (BNC ...
Moo-Sub Kim, Martin Wai-Ming Law, Shih-Kien Djeng, Han-Back Shin, Min-Geon Choi, Yong-Jin Kim, Bo-Young Choe, Tae Suk Suh, Do-Kun Yoon   +8 more
doaj   +1 more source

Advances in mucosal injury mechanisms in radiation‐induced esophagitis associated with thoracic radiotherapy

Precision Radiation Oncology, EarlyView.
There is no specific therapeutic drug regimen for radiation esophagitis. In previous studies, radiation esophagitis was considered a self‐limiting disease; however, current clinical approaches are limited to symptomatic treatment, which yields unsatisfactory therapeutic outcomes.
Hao Zhang, Liangxue Luo, Chaofen Zhao, Bibo Wu, Jing Zhang, Lingfeng Liu, Bing Lu, Shengfa Su   +7 more
wiley   +1 more source

Proton pencil minibeam irradiation of an in-vivo mouse ear model spares healthy tissue dependent on beam size.

PLoS ONE, 2019
Proton radiotherapy using minibeams of sub-millimeter dimensions reduces side effects in comparison to conventional proton therapy due to spatial fractionation.
Matthias Sammer, Esther Zahnbrecher, Sophie Dobiasch, Stefanie Girst, Christoph Greubel, Katarina Ilicic, Judith Reindl, Benjamin Schwarz, Christian Siebenwirth, Dietrich W M Walsh, Stephanie E Combs, Günther Dollinger, Thomas E Schmid   +12 more
doaj   +1 more source

The scale matters: A review on stimuli‐responsive microrobots categorized by scale for biomedical applications

Responsive Materials, EarlyView.
We systematically summarize how each scale dictates fundamental choices in design feature, manufacturing technology, driving mechanism, and control strategy, which are inherently governed by scale‐dominated physical principles. Furthermore, the application of scale‐determined operation modes of microrobots across different stages of medical ...
Hang Yin, Yujing Li, Guanghao Wu, Yubing Guo   +3 more
wiley   +1 more source

A Single-Institution Prospective Study To Evaluate the Safety and Efficacy of Real- Time Image-Gated Spot-Scanning Proton Therapy (RGPT) for Prostate Cancer

Advances in Radiation Oncology
Purpose: In real-time image-gated spot-scanning proton therapy (RGPT), the dose distribution is distorted by gold fiducial markers placed in the prostate.
Kentaro Nishioka, MD, PhD, Takayuki Hashimoto, MD, PhD, Takashi Mori, MD, PhD, Yusuke Uchinami, MD, PhD, Rumiko Kinoshita, MD, PhD, Norio Katoh, MD, PhD, Hiroshi Taguchi, MD, PhD, Koichi Yasuda, MD, PhD, Yoichi M. Ito, PhD, Seishin Takao, PhD, Masaya Tamura, PhD, Taeko Matsuura, PhD, Shinichi Shimizu, MD, PhD, Hiroki Shirato, MD, PhD, Hidefumi Aoyama, MD, PhD   +14 more
doaj   +1 more source

A novel sulfur‐containing photoinitiator based on benzophenone derivatives for rapid photopolymerization

Smart Molecules, EarlyView.
This study develops a series of unimolecular photoinitiators, BP‐S1‐5, by incorporating hydrogen‐donating groups into a benzophenone framework. This method reduces the reliance on co‐initiators, and enables BP‐S1‐5 with efficient photoinitiation and excellent molding capability.
Yu Li, Wenzheng Li, Saihe Yang, Lu Li, Shikun Song, Yuting Tang, Han Han, Zhenyue Duan, Yangyang Xin, Jiangli Fan, Pengzhong Chen, Xiaojun Peng   +11 more
wiley   +1 more source

Measurement of the energy spectrum of secondary neutrons in a proton therapy environment

Current Directions in Biomedical Engineering, 2017
Measurement of the energy spectrum of secondary neutrons were carried out at the OncoRay Proton Therapy facility in Dresden, following an approach originating in neutron metrology which is well suited for both the characterization of secondary neutron ...
Dommert Martin, Reginatto Marcel, Zboril Miroslav, Fiedler Fine, Helmbrecht Stephan, Enghardt Wolfgang, Lutz Benjamin   +6 more
doaj   +1 more source

Structural Profiling of Lipid Nanoparticles at Sub‐10 nm Resolution via AF4 Coupled Online to SAXS and SANS

Small Methods, EarlyView.
Dilution‐controlled AF4 coupled with SAXS and, for the first time, SANS enables high‐resolution characterization of non‐spherical lipid nanoparticles. Enhanced scattering contrast and D2O‐based measurements resolve particle features down to ∼5 nm and reveal shape distributions.
Eva Bittrich, Susanne Boye, Zanelle Van Niekerk, Zahn Stanvliet, Arthur Porfetye, Fátima Herranz‐Trillo, Hans Bolinsson, Stefaniya Gaydarova, Christo Tzachev, Anne Martel, Lars Nilsson, Ralf Schweins, Albena Lederer   +12 more
wiley   +1 more source

Optical design of beam for proton therapy energy selection system based on CYCIAE-230 superconducting cyclotron

He jishu
BackgroundThe energy selection system (ESS) is a key part of the cyclotron-based proton therapy facility. In addition to regulating the energy of the fixed-energy proton beam generated by the cyclotron to match the depth of the tumor, the other main role
ZHAO Bohan, GUO Qiankun, ZHANG Tianjue, WANG Chuan, YIN Zhiguo, SONG Qiqi, HE Aolai, LIU Zhan, WANG Xi, HU Mingzhi, LIU Jingyuan, WANG Yang, ZHU Xiaofeng, XIONG Rui, JIANG Tianyi   +14 more
doaj   +1 more source

Growing choroidal osteoma: Treated by proton beam radiation

Taiwan Journal of Ophthalmology
Choroidal osteoma is a rare, slow-growing intraocular osseous tumor. Limited information is available regarding the management of tumors growing toward the fovea.
Ahad Sedaghat, Mary E. Aronow, Arun D. Singh   +2 more
doaj   +1 more source