Results 81 to 90 of about 79,111 (306)
Photodynamic therapy in the esophagus
Photodiagnosis and Photodynamic Therapy, 2004 Photodynamic therapy (PDT) involves in situ photo-activation of photosensitizers by light at appropriate wavelength, generating highly active singlet oxygen and free radicals. For esophageal mucosal dysplasia such as high-grade dysplasia or intramucosal cancer, curative endoluminal therapy including PDT is now a reality.
Shou-Jiang Tang, Norman E. Marcon
openaire +3 more sources
Advanced Materials, EarlyView.This study introduces a multimodal nonlinear microscopy approach using upconverting nanoparticles (UCNPs) under continuous‐wave excitation. The UCNPs exhibit high‐order nonlinear optical responses, enabling deep‐tissue 3D imaging, video‐rate wide‐field imaging, and depth‐selective photomodulation.
Jeongmo Kim +13 more
wiley +1 more source
Digital ultrasonically encoded (DUE) optical focusing into random media [PDF]
, 2013 Focusing light into opaque random or scattering media such as biological tissue is a much sought-after goal for biomedical applications such as photodynamic therapy, optical manipulation, and photostimulation. However, focusing with conventional lenses is restricted to one transport mean free path in scattering media, limiting both optical penetration ...
arxiv +1 more source
Current Advances of Antibacterial Biomaterials for Bone Regeneration
Advanced Materials Interfaces, EarlyView.Effective treatment of infectious bone defects requires not only robust bone regeneration, but also the elimination of bacterial infection. This review highlights current cutting‐edge concepts and innovations in synthetic bone repair biomaterials and antibacterial bone repair materials, aiming to promote clinical translation and inspire broader ...
Xueping Kong +3 more
wiley +1 more source
The use of photodynamic therapy in the treatment of keratoacanthomas
Biomedical Photonics, 2016 The review is on treatment of keratoacanthomas using photodynamic therapy. The defining characteristic of keratoacanthoma among epithelial tumors is a rapid spontaneous regression in the case of typical keratoacanthoma and long-term persistence ...
V. N. Galkin +7 more
doaj +2 more sources
Liposomal photosensitizers: potential platforms for anticancer photodynamic therapy
Brazilian Journal of Medical and Biological Research, 2011 Photodynamic therapy is a well-established and clinically approved treatment for several types of cancer. Antineoplastic photodynamic therapy is based on photosensitizers, i.e., drugs that absorb photons translating light energy into a chemical potential
L.A. Muehlmann +4 more
doaj +3 more sources
Progress and Application of Multifunctional Hydrogel in Radioactive Skin Injury
Advanced Materials Interfaces, EarlyView.This review examines healing challenges in radiation‐wound injuries, where ionizing radiation impairs immune and tissue repair processes. Hydrogels, with their biocompatibility, antimicrobial properties, and drug delivery capabilities, present a transformative solution. It compares hydrogel efficacy in radiation‐induced versus common wounds, highlights
Xinyue Cui +5 more
wiley +1 more source
Photodynamic Therapy for Esophageal cancer
Canadian Journal of Gastroenterology, 1990 In photodynamic therapy, a photosensitizing drug is injected and then activated by light in the red spectral region to produce reactive, highly toxic singlet oxygen, which causes cell tissue and damage.
R Lambert
doaj +1 more source
Lifetime positron annihilation spectroscopy and photo-inactivated bacteria [PDF]
arXiv, 2009 Combined positron and visible light irradiations in the photodynamical therapy (PDT) applications are analyzed. Objectives and goals of PDT are killing or irreversible oxidative damage of pathogenic cells, or rather their cell walls, cell membranes, peptides, and nucleic acids by photo-activated oxygen of photosentizer injected into the target cell ...
arxiv
Efficient cathodoluminescence of monolayer transitional metal dichalcogenides in a van der Waals heterostructure [PDF]
, 2017 Monolayer two-dimensional transitional metal dichalcogenides, such as MoS2, WS2 and WSe2, are direct band gap semiconductors with large exciton binding energy. They attract growing attentions for opto-electronic applications including solar cells, photo-detectors, light-emitting diodes and photo-transistors, capacitive energy storage, photodynamic ...
arxiv +1 more source