Search for: laser-wavelength
0.005 seconds

    Possibility of methane conversion into heavier hydrocarbons using nanosecond lasers

    , Article Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy ; Volume 156 , 2016 , Pages 118-122 ; 13861425 (ISSN) Navid, H. A ; Irani, E ; Sadighi Bonabi, R ; Sharif University of Technology
    Elsevier  2016
    Effect of nanosecond lasers on the methane dissociation is experimentally studied by using three different laser wavelengths at 248 nm, 355 nm and 532 nm. C2H2 generation is measured as a major reaction product in experiments and the energy consumptions in production of this component are measured as 5.8 MJ/mol, 3.1 MJ/mol and 69.0 MJ/mol, for 355 nm, 532 nm and 248 nm wavelengths, respectively. The mechanism of conversion and production of new stable hydrocarbons is also theoretically investigated. It is found that in theoretical calculations, the ion-molecule reactions should be included and this leads to a unique approach in proper explanation of the experimental measurements  

    Intravenous laser wavelength irradiation effect on interleukins: Il-1α, il-1β, IL6 in diabetic rats

    , Article Laser Therapy ; Volume 28, Issue 4 , 2019 , Pages 267-273 ; 08985901 (ISSN) Amjadi, A ; Mirmiranpor, H ; Khandani, S ; Sobhani, S. O ; Shafaee, Y ; Sharif University of Technology
    Japan Medical Laser Laboratory  2019
    Background and aims: The main purpose of this investigation in Low-Level Laser Therapy (LLLT) on diabetic rats is laser wavelength effect on interleukins: IL-1α, IL-1β, IL6. Materials (Subjects) and Methods: At first, diabetes was induced in Wistar rats by streptozotocin (STZ) injection. Then, by intravenous laser therapy, the rats were irradiated by four continuous wave lasers: IR (λ = 808 nm), Red (λ = 638 nm), Green (λ = 532 nm) and Blue (λ = 450 nm) to compare the related laser wavelength effect on different interleukins. The inflammatory parameters were measured 2,6 and 24 hours after laser therapy from blood samples and plotted for different laser wavelengths. Results: The results show... 

    Intravenous laser wavelength radiation effect on LCAT, PON1, catalase, and FRAP in diabetic rats

    , Article Lasers in Medical Science ; Volume 35, Issue 1 , 2020 , Pages 131-138 Amjadi, A ; Mirmiranpour, H ; Sobhani, S. O ; Moazami Goudarzi, N ; Sharif University of Technology
    Springer  2020
    The main purpose of this study is to evaluate the effect of intravenous irradiation of different low-level laser wavelengths on the activity of lecithin-cholesterol acyltransferase (LCAT), paraoxonase (PON1), catalase, and ferric reducing ability of plasma (FRAP) in diabetic rats. First, diabetes was induced in rats using streptozotocin (STZ). Enzymes’ activity was measured in the blood samples and compared before and after intravenous laser blood irradiation. We used four continuous-wave lasers—IR (λ = 808 nm), Red (λ = 638 nm), Green (λ = 532 nm), and Blue (λ = 450 nm)—to compare the wavelength’s effect on different enzymes’ activity. Laser power was fixed at 0.01 mW and laser energy was...