نتایج جستجو برای: antibacterial laser dye

تعداد نتایج: 261232  

Journal: :Journal of biomechanical engineering 2008
Liang Zhu Rupak K Banerjee Maher Salloum Albert Bachmann Robert W Flower

Laser photocoagulation of the feeder vessels of age-related macula degeneration-related choroidal neovascularization (CNV) membranes is a compelling treatment modality, one important reason being that the treatment site is removed from the fovea in cases of sub- or juxtafoveal CNV. To enhance the energy absorption in a target feeder vessel, an indocyanine green dye bolus is injected intravenous...

2012

For most experimental applications where organic dye lasers are used as light sources, it is necessary to narrow the spectral output which is up to a few hundred Ängstroms wide. Spectral narrowing down to 0.5 — 1 Ä can be achieved by using a diffraction grating as one of the resonator mirrors a set of prisms2 or an interference filter inside the laser cavity3. Further reduction of the emission ...

2009
Mohammad Asnaashari Reza Fekrazad Fatemeh Dehghan Menshadi Massoud Seifi

INTRODUCTION Controversial results have been reported when organic acids, ultrasonic instruments and laser techniques were used to remove smear layer in endodontic treatments. The aim of this study was to evaluate the effect of removing debris and smear layer by Er,Cr:YSGG laser irradiation on the apical leakage of retrograde cavities. MATERIALS AND METHODS In this ex vivo study, 24 extracted...

Journal: :Japanese journal of ophthalmology 2000
Y Gohto A Obana K Kaneda S Nakajima T Takemura T Miki

PURPOSE To determine the most appropriate time for laser irradiation to produce selective occlusion of new corneal vessels by photodynamic therapy (PDT) with a new photosensitizer, ATX-S10(Na). METHODS The time course of the plasma levels of ATX-S10(Na) and the degree of dye accumulation in the corneal neovascularization after intravenous administration was determined in rabbit eyes. Plasma c...

Journal: :Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons 2016
Sigurd Hafner Michael Ehrenfeld Enno Storz Andreas Wieser

PURPOSE Local antimicrobial therapy is a fundamental principle in the treatment of lesions of medication-related osteonecrosis of the jaw. Antimicrobial photodynamic therapy (aPDT) as a local application for the treatment of microbial infections has become more widely used in recent years. In the mouth, the bone surface is in constant contact with saliva and thus cannot be kept sterile, making ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1390

any change in the refractive index of a laser active medium can lead to serious degradation of beam quality, laser beam modes, laser performance and variation in the intensity distribution. alteration in the refractive index of laser active medium is especially notable in high power lasers. it is clear that in the laser beam production, the pumping agent induces a great amount of heat which...

Journal: :Lasers in surgery and medicine 1999
J A Viator S A Prahl

BACKGROUND AND OBJECTIVE Laser thrombolysis is a means for clearing blood clots in occluded arteries. Many researchers have studied the mechanisms of clot ablation, and research clinicians have used the technique to treat myocardial infarction with a number of different laser systems. Specifically, a 1-microsec pulsed dye laser has been used clinically to remove blood clots in coronary arteries...

2002
Jeong-Hun Park Young-Keun Kim

caused by human papilloma virus(HPV) coming from the papova family. They are a common dermatologic complaint, with an estimated incidence of 10% in children and young adults1. Commonly warts occur at the periungual areas and pose a problem in the management2 . Interferons have been used for the treatment of viral disease, cutaneous tumors, HIV-associated Kaposi’s sarcoma and other inflammatory ...

2007
Tuquabo Tesfamichael Geoffrey Will Thor Bostrom John Bell

We have characterised a dye-sensitised nanoporous nanocrystalline titania film used in prototype photoelectrochemical solar cell production. The film was sensitised with two types of ruthenium (II) based dyes for different times, between 0.5 and 24 hours. The penetration and coverage for each type of dye was studied using Confocal Laser Scanning Microscopy (CLSM). Varying laser powers were appl...

2017
Xuejian Liu Wenchuan Yang Maozhong Tai Yuhua Li Xia Wu Xiangli Chen

Objective: To analyse combinational effect of pulsed dye laser and propranolol on treatment of Superficial Hemangioma (SH). Methods: From June 2016 to June 2017, we collected 110 children with SH enrolled in Linyi No.3 People's Hospital. All patients were divided randomly and evenly into two groups (control group and study group). The patients in control group were treated with pulsed dye laser...

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