keyword
MENU ▼
Read by QxMD icon Read
search

diode laser

keyword
https://www.readbyqxmd.com/read/28645784/the-effect-of-antimicrobial-photodynamic-therapy-on-the-expression-of-novel-methicillin-resistance-markers-determined-using-cdna-aflp-approach-in-staphylococcus-aureus
#1
Mohammad Neshvan Hoorijani, Hosein Rostami, Maryam Pourhajibagher, Nasim Chiniforush, Mansour Heidari, Babak Pourakbari, Hossein Kazemian, Kambiz Davari, Vahid Amini, Reza Raoofian, Abbas Bahador
BACKGROUND: Widespread methicillin resistant Staphylococcus aureus (MRSA) and absence of effective antimicrobial agents has led to limited therapeutic options for treating MRSA infection. We aimed to evaluate the effect of antimicrobial photodynamic therapy (aPDT) on the expression of novel identified methicillin resistance markers (NIMRMs) in S. aureus using complementary DNA-Amplified Fragment Length Polymorphism (cDNA-AFLP) approaches to address the therapeutic alternatives for MRSA infections...
June 20, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28644240/corneal-stiffening-by-a-bacteriochlorophyll-derivative-with-dextran-and-near-infrared-light-effect-of-shortening-irradiation-time-up-to-1-minute
#2
Jurriaan Brekelmans, Alexandra Goz, Mor M Dickman, Alexander Brandis, Xiaomeng Sui, H Daniel Wagner, Rudy M M A Nuijts, Avigdor Scherz, Arie L Marcovich
PURPOSE: The aim of this study is to determine the effect of variation of the exposure time of near-infrared irradiation on corneal stiffening after a bacteriochlorophyll derivative (WST11) with dextran (WST-D) application. METHODS: One hundred four paired eyes of 3-month-old New Zealand White rabbits were included in this study. Fifty-two eyes (ex vivo n = 34, in vivo n = 18) were mechanically deepithelialized, treated topically with WST-D, and irradiated at 10 mW/cm using a diode laser at 755 nm for 1, 5, or 30 minutes...
June 21, 2017: Cornea
https://www.readbyqxmd.com/read/28643340/trans-endoscopic-diode-laser-fenestration-of-equine-conchae-via-contralateral-nostril-approach
#3
Filip Kološ, Štěpán Bodeček, Zdeněk Žert
OBJECTIVE: To describe and report preliminary outcomes of a contralateral trans-nasal endoscopic laser fenestration of the conchae for endoscopic examination and treatment of paranasal sinuses in horses. STUDY DESIGN: Cadaveric experimental and prospective clinical study. ANIMALS: Normal cadaveric equine heads (n = 7) and equine patients (horses n = 7, donkey n = 1) diagnosed with sinusitis. METHODS: Ex vivo: a video-endoscope containing a diode laser fiber in the working canal was passed through the nostril and retroflexed in the nasopharynx toward the contralateral conchae...
June 23, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28641206/efficacy-of-surgical-laser-therapy-in-the-management-of-oral-pigmented-lesions-a-systematic-review
#4
Tariq Abduljabbar, Fahim Vohra, Zohaib Akram, Siti Mariam Ab Ghani, Nawwaf Al-Hamoudi, Fawad Javed
BACKGROUND: Oral pigmentation, especially in the gingiva poses esthetic problems. Laser therapy has been widely used for cosmetic therapy in dentistry. The aim of the present study was to systematically review the efficacy of surgical laser therapy (SLT) in the management of oral pigmented lesions (OPL). MATERIALS AND METHODS: The addressed focused question was "Is SLT effective in the management of OPL?" Databases (MEDLINE via PubMed; EMBASE; Cochrane Central Register of Controlled Trials and Cochrane Oral Health Group Trials Register databases) were searched from 1970 up to and including February 2017...
June 15, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28640499/triplet-harvesting-with-a-simple-aromatic-carbonyl
#5
Christian Torres Ziegenbein, Sascha Fröbel, Maria Glöß, Roberto S Nobuyasu, Przemyslaw Data, Andrew Monkman, Peter Gilch
The efficiency of organic light emitting diodes crucially depends on triplet harvesters. These accept energy from triplet correlated electron hole pairs and convert it into light. Here experimental evidence is given that simple aromatic carbonyls, such as thioxanthone, could serve this purpose. In these compounds the emissive 1ππ* excitation may rapidly equilibrate with an upper triplet state (3nπ*). This equilibrium may persist for nanoseconds. Population of the 3nπ* state via energy transfer from an electron hole pair should result in fluorescence emission and thereby triplet harvesting...
June 22, 2017: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/28640462/hybrid-lead-halide-perovskites-for-ultrasensitive-photoactive-switching-in-terahertz-metamaterial-devices
#6
Manukumara Manjappa, Yogesh Kumar Srivastava, Ankur Solanki, Abhishek Kumar, Tze Chien Sum, Ranjan Singh
The recent meteoric rise in the field of photovoltaics with the discovery of highly efficient solar-cell devices is inspired by solution-processed organic-inorganic lead halide perovskites that exhibit unprecedented light-to-electricity conversion efficiencies. The stunning performance of perovskites is attributed to their strong photoresponsive properties that are thoroughly utilized in designing excellent perovskite solar cells, light-emitting diodes, infrared lasers, and ultrafast photodetectors. However, optoelectronic application of halide perovskites in realizing highly efficient subwavelength photonic devices has remained a challenge...
June 22, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28638555/a-comparative-evaluation-oral-leukoplakia-surgical-management-using-diode-laser-co2-laser-and-cryosurgery
#7
Madhukar Natekar, Hosahallli-Puttaiah Raghuveer, Dilip-Kumar Rayapati, Eshwara-Singh Shobha, Nagesh-Tavane Prashanth, Vinod Rangan, Archana G Panicker
BACKGROUND: The comparatively evaluate the three surgical treatment modalities namely cryosurgery, diode and CO2 laser surgery in terms of healing outcomes on the day of surgery, first and second week post operatively and recurrence at the end of 18 months was assessed. MATERIAL AND METHODS: Thirty selected patients were divided randomly into three groups. Each group comprising of ten patients were subjected to one of the three modalities of treatment namely cryosurgery, diode laser or CO2 laser surgery for ablation of OL...
June 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28638546/comparing-the-effect-of-diode-laser-against-acyclovir-cream-for-the-treatment-of-herpes-labialis
#8
Marieh Honarmand, Leila Farhadmollashahi, Ehsan Vosoughirahbar
BACKGROUND: Recently alternative therapies such as the use of diode laser therapy have been introduced for recurrent herpes labial infection. The aim of this study was to evaluate the effectiveness of diode laser for treatment of recurrent herpes labialis. MATERIAL AND METHODS: This was single-blind randomized clinical trial to evaluate the efficacy of diode laser for the treatment of recurrent herpes labial. In total, 60 patients whit recurrent herpes simplex labialis were selected and randomly divided in to three groups...
June 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28632988/solid-sampling-with-a-diode-laser-for-portable-ambient-mass-spectrometry
#9
Yeni P Yung, Raveendra Wickramasinghe, Anu Vaikkinen, Tiina Johanna Kauppila, Igor V Veryovkin, Luke Hanley
A handheld diode laser is implemented for solid sampling in portable ambient mass spectrometry (MS). Specifically, a pseudo-continuous wave battery-powered surgical laser diode is employed for portable laser diode thermal desorption (LDTD) at 940 nm and compared with nanosecond pulsed laser ablation at 2940 nm. Postionization is achieved in both cases using atmospheric pressure photoionization (APPI). The laser ablation atmospheric pressure photoionization (LAAPPI) and LDTD-APPI mass spectra of sage leaves (Salvia officinalis) using a field-deployable quadrupole ion trap MS display many similar ion peaks, as do the mass spectra of membrane grown biofilms of Pseudomonas aeruginosa...
June 20, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28627416/a-combined-application-of-tunable-diode-laser-absorption-spectroscopy-and-isothermal-micro-calorimetry-for-calorespirometric-analysis
#10
David Brueckner, Anna Solokhina, Stephan Krähenbühl, Olivier Braissant
Calorespirometry is the simultaneous analysis of the rate of heat emission (Rq), O2 consumption (RO2) and CO2 production (RCO2) by living systems such as tissues or organism cultures. The analysis provides useful knowledge about thermodynamic parameters relevant for e.g. biotechnology where parameter based yield maximization (fermentation) is relevant. The determination of metabolism related heat emission is easy and normally done by a calorimeter. However, measuring the amount of consumed O2 and produced CO2 can be more challenging, as additional preparation or instrumentation might be needed...
June 13, 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28626285/selective-laser-ablation-of-carious-lesions-using-simultaneous-scanned-near-ir-diode-and-co2-lasers
#11
Kenneth H Chan, Daniel Fried
Previous studies have established that carious lesions can be imaged with high contrast using near-IR wavelengths coincident with high water absorption, namely 1450-nm, without the interference of stains. It has been demonstrated that computer-controlled laser scanning systems utilizing IR lasers operating at high pulse repetition rates can be used for serial imaging and selective removal of caries lesions. In this study, a point-to-point scanning system was developed integrating a 1450-nm diode laser with the CO2 ablation laser...
January 28, 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/28625529/comparative-study-on-the-effect-of-low-intensity-laser-and-growth-factors-on-stem-cells-used-in-experimentally-induced-liver-fibrosis-in-mice
#12
Eman Naguib, Ashraf Kamel, Osama Fekry, Gamal Abdelfattah
BACKGROUND AND STUDY AIMS: The therapeutic effects of human umbilical cord-derived mesenchymal stem cells (UC-MSCs) exposed to diode laser and/or hepatocyte growth factor (HGF) were compared in mice with experimental liver fibrosis induced by carbon tetra chloride (CCl4). MATERIAL AND METHODS: Animal model of liver cirrhosis was induced by intraperitoneal injection of CCl4 in a dose of 0.4ml/kg, twice a week for 6weeks. UC-MSCs were obtained from normal full term placentas and were exposed to diode laser and/or HGF...
June 15, 2017: Arab Journal of Gastroenterology: the Official Publication of the Pan-Arab Association of Gastroenterology
https://www.readbyqxmd.com/read/28622041/the-effects-of-low-level-laser-therapy-on-the-healing-of-bone-defects-in-streptozotocin-induced-diabetic-rats-a-histological-and-morphometric-evaluation
#13
Senem Yildirimturk, Yigit Sirin, Merva Soluk Tekkesin, Gokhan Gurler, Deniz Firat
BACKGROUND: The aim of the present study was to evaluate the effects of LLLT on the healing of bone defects in rats with streptozotocin (STZ) induced DM. METHODS: 28 male Sprague-Dawley rats were used in this study. 14 animals received a single dose of STZ intraperitoneally (65 mg/kg) to induce Type I DM, whereas others were injected only with sterile saline solution. Four weeks later, standard bone defects were created in the tibiae of rats. Surgical wounds in one group from each of the diabetic and non-diabetic animals were irradiated with diode laser for every other day for 4 weeks and they were described as DM+LLLT and CONT+LLLT groups, respectively...
June 16, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28614326/highly-efficient-passively-q-switched-tm-yap-laser-using-a-cr-zns-saturable-absorber
#14
Brian Cole, Lew Goldberg
We describe a diode-pumped, passively Q-switched 2 μm Tm:YAP laser generating 10.5 W of average power. The laser utilized a Cr<sup>2+</sup>:ZnS saturable absorber with a nonsaturated transmission (T<sub>0</sub>) of 90% and exhibited a record 46% optical slope efficiency and a 42% overall optical conversion efficiency, both measured relative to the incident 794 nm pump power. At maximum average output power, the laser generated 0.6 mJ Q-switched pulses with a maximum peak power of 32 kW...
June 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/28614324/development-of-a-high-power-blue-laser-445%C3%A2-%C3%A2-nm-for-material-processing
#15
Hongze Wang, Yosuke Kawahito, Ryohei Yoshida, Yuya Nakashima, Kunio Shiokawa
A blue diode laser has a higher absorption rate than a traditional laser, while the maximum power is limited. We report the structure and laser beam profile of a 250 W high-power blue laser (445 nm) for material processing. The absorption rate of the blue laser system for the steel was 2.75 times that of a single-mode fiber laser system (1070 nm). The characteristics of the steel after laser irradiation were determined, validating the potential of this high-power blue laser for material processing, such as heat treatment and cladding...
June 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/28613427/clinical-anatomy-of-the-anterior-chamber-angle-in-congenital-aniridia-and-consequences-for-trabeculotomy-cyclophotocoagulation
#16
Arne Viestenz, Berthold Seitz, Eva Deland, Miltiadis Fiorentzis, Lorenz Latta, Anja Viestenz, Barbara Käsmann-Kellner
INTRODUCTION: Intraocular pressure (IOP) lowering surgery in congenital aniridia glaucoma (CAG) can be complicated by dysgenesis of the limbal region, anterior chamber angle, iris and lens. METHODS: The anterior segments of 23 eyes (17 patients) with congenital aniridia were investigated under general anesthesia using ultrasound biomicroscopy (UBM). The structures of the anterior segment were examined: distance of ciliary body processes from the anterior chamber angle and positioning of Schlemm's canal...
June 14, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28608190/endoluminal-laser-assisted-vascular-anastomosis-an-in-vivo-study-in-a-pig-model
#17
Zacharia Mbaidjol, David Kiermeir, Annemarie Schönfeld, Jörg Arnoldi, Martin Frenz, Mihai A Constantinescu
Microvascular surgery is time consuming and requires high expertise. Laser-assisted vascular anastomosis (LAVA) is a promising sutureless technique that has the potential to facilitate this procedure. In this study, we evaluate the handling of our soldering material and the 1-week patency rate in a porcine model. Six pigs were subjected to LAVA. For each pig, the saphenous artery on one side was transected while the contralateral side was used as control. A porous polycaprolactone scaffold soaked in 40% (w/w) bovine serum albumin solution in combination with 0...
June 12, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28607639/effect-of-diode-laser-irradiation-on-compressive-strength-of-dental-amalgam
#18
Mitra Tabari, Reza Fekrazad, Homayoun Alaghemand, Mahtab Hamzeh
INTRODUCTION: One of the biggest disadvantages of dental amalgam is that gaining its ultimate strength is a slow process. The use of a rapid-setting amalgam with high early compressive strength could be a better option in preventing early fractures in pediatric dentistry. The aim of this study was to determine the effect of diode laser irradiation on compressive strength of dental amalgam. METHODS: A case-control study was performed on 180 amalgam samples made at the Tehran Dental Material Research Center in 2014...
April 2017: Electronic Physician
https://www.readbyqxmd.com/read/28603563/management-of-an-extensive-vascular-lesion-on-the-lip-by-photocoagulation-with-high-intensity-diode-laser
#19
Luciane H Azevedo, Dante Migliari
OBJECTIVE: Extensive vascular malformations (VM) pose difficulties for an effective management. INTRODUCTION: This article describes a very satisfactory result, both functional and aesthetic, following a management by the technique of photocoagulation using diode laser in an extensive VM lesion involving the lower lip and left buccal mucosa in a 25 year old male. CASE REPORT: The patient reported that the lesion had been present since birth...
2017: Open Dentistry Journal
https://www.readbyqxmd.com/read/28602137/immediate-and-short-term-effects-of-phototherapy-on-pain-muscle-activity-and-joint-mobility-in-women-with-temporomandibular-disorder-a-randomized-double-blind-placebo-controlled-clinical-trial
#20
Carolina Marciela Herpich, Ernesto Cesar Pinto Leal-Junior, Cid Andre Fidelis de Paula Gomes, Igor Phillip Dos Santos Gloria, Ana Paula Amaral, Maitê de Freitas de Rocha Souza Amaral, Fabiano Politti, Daniela Aparecida Biasotto-Gonzalez
OBJECTIVES: The aim of the present study was to evaluate the immediate and short-term effects of phototherapy on pain intensity, the pressure pain threshold (PPT), maximum vertical mandibular movement, and the electrical activity of the masseter and temporal muscles in women with temporomandibular disorder (TMD). METHODS: Sixty women were randomly allocated to four different groups and submitted to phototherapy with a combination of super-pulsed laser (905 nm), red (640 nm), and infrared (875 nm) light emitting diodes in the same equipment on the masseter (three points) and temporal (two points) muscles bilaterally in a single session...
June 11, 2017: Disability and Rehabilitation
keyword
keyword
581
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"