Results 221 to 230 of about 78,262 (259)

Photonic hydrogels combining the slow photon effect and NO gas therapy for synergetic enhanced photodynamic antibacterial therapy

Journal of Colloid and Interface Science
Photodynamic therapy (PDT) offers potential for combating bacterial infections through the generation of reactive oxygen species (ROS). However, the antibacterial efficiency of PDT is largely impeded by the limited photon absorption of photosensitizers and the short diffusion length and lifespan of ROS.
Hui Wang, Duohang Bi, Bowen Yu, Qiang Chen, Shuo Du, Ge Xie, Jintao Zhu, Lianbin Zhang   +7 more
openaire   +2 more sources

Wearable Shoulder Periarthritis Photon Therapy Device

2019 IEEE International Conference on Consumer Electronics - Taiwan (ICCE-TW), 2019
This paper describes the development of a wearable device for the treatment of shoulder periarthritis based on near-infrared light stimulating the acupuncture points on frozen shoulder. Study includes related pathology of frozen shoulder, the key points in treatment, near-infrared wave length selection, and the design of hardware and software systems ...
Xuedan Pei, Kai Zhang, Lili Wang, Wulong Yu   +3 more
openaire   +1 more source

Photonic metallic nanostructures in photodynamic therapy

SPIE Proceedings, 2009
ABSTRACT Plasmons are resonant modes that involve the interaction between free charges and light. Nanoparticle-based photonic explorers have been developed for photodynamic therapy (PDT). PDT has been widely used in both oncological (e.g., tumors) and nononcological (e.g., age-related macular degeneration, localized infection, and nonmalignant skin ...
Rodica-Mariana Ion, R. C. Fierascu, Irina Dumitriu   +2 more
openaire   +1 more source

Two-photon photodynamic therapy with curcumin nanocomposite

Colloids and Surfaces B: Biointerfaces
Two-photon photodynamic therapy (TP-PDT) offers an innovative approach to cancer treatment that utilizes near-infrared light to activate photosensitizers and generate reactive oxygen species (ROS) for targeted cancer cell elimination. TiO2-CUR-Sofast (TCS), which uses TiO2 nanoparticles and Sofast cationic polymer to modify curcumin (CUR), has ...
Jiacheng Zhou, Mingmei Ji, Yuwei Yang, Wenhua Su, Liwen Chen, Yuzhe Liu, Yiyan Fei, Jiong Ma, Lan Mi   +8 more
openaire   +2 more sources

Applied photonic therapy in veterinary medicine

SPIE Proceedings, 2005
There can be no question that specific systemic physiological results occur, when red light (660nm) is applied to the skin, it is now more a question of detailed mechanisms. Before gathering statistically signifcant clinical trial data, it is important to first enumerate the type of results observed in practice.
Terry R. Wood, Brian C. McLaren
openaire   +1 more source

Analytic modeling of photon scatter from flattening filters in photon therapy beams

Medical Physics, 1994
Analytic models for calculation of scatter distributions from flattening filters in therapy photon beams are presented. It is shown that the amount of scatter with high atomic number filters can vary from 2% in 4‐MV beams to 10% for 24‐MV beams. The use of low atomic number filters can increase the amount of scatter by a factor of 2.
openaire   +2 more sources

Photon irradiation response of photonic crystal fibres and flat fibres at radiation therapy doses

Applied Radiation and Isotopes, 2014
Radiation effects of photon irradiation in pure Photonic Crystal Fibres (PCF) and Flat fibres (FF) are still much less investigated in thermoluminescense dosimetry (TLD). We have reported the TL response of PCF and FF subjected to 6 MV photon irradiation. The proposed dosimeter shows good linearity at doses ranging from 1 to 4 Gy.
Hashim, S, Ibrahim, SA, Omar, SSC, Alajerami, YSM, Saripan, MI, Noor, NM, Ung, NM, Mahdiraji, GA, Bradley, DA, Alzimami, K   +9 more
openaire   +4 more sources

Multiple scattering imager for photon therapy

2013 IEEE Nuclear Science Symposium and Medical Imaging Conference (2013 NSS/MIC), 2013
During radiation therapy, it is necessary to monitor the irradiated position and energy deposited in the patient. In general, calculations before photon exposure or 2D measurement of transmitted photons have been widely used for dose estimation. In this research, we propose real-time 3D dose measurement using Compton imaging technology. On the basis of
openaire   +1 more source

Carbon Footprint of Photon Therapy

International Journal of Radiation Oncology*Biology*Physics, 2023
T. Dvorak, A.P. Shah, J.M. Rineer, P. Kelly, C. Dvorak, J. Salazar   +5 more
openaire   +1 more source

Medium Energy Photon Accelerator for Therapy

IEEE Transactions on Nuclear Science, 1983
The Harvard Cyclotron Laboratory is designing a small synchrotron to make low-current adjustable-energy proton beams for radiotherapy. The specifications include an adjustable range of 50 to 250 MeV; an 0.1 microamp average in 10 pulses per second; a size of 6 by 6 meters; a weight of 5 tons; and a prototype cost of ca. $400 K.
openaire   +1 more source