Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) is one of the most successful direct solid sampling techniques for major, minor and trace element analysis. However, this technique still suffers from matrix dependent ablation characteristics, which makes quantification very difficult. Furthermore, the laser sampled material alters its composition from the sample to the de...

To study the effects of laser fluence (laser energy density), scanning line spacing and ablation depth on the efficiency of a femtosecond laser for three-dimensional ablation of enamel and dentin. A diode-pumped, thin-disk femtosecond laser (wavelength 1025 nm, pulse width 400 fs) was used for the ablation of enamel and dentin. The laser spot was guided in a series of overlapping parallel lines...

A laser ablation-inductively coupled plasma-mass spectrometric (LA-ICPMS) technique utilizing a titanium-sapphire (TiS) femtosecond laser (fs-laser) has been developed for elemental and isotopic analysis. The signal intensity profile, depth of the ablation pit and level of elemental fractionation were investigated in order to evaluate the analytical capability of the present fs-laser ablation-I...

BACKGROUND Endo-venous laser or microwave ablation is a minimally invasive surgery for treating varicose veins of lower limbs. AIM The aim of our study was to determine whether endovenous microwave ablation of the greater saphenous vein was associated with better effectiveness and less complications than the endovenous laser ablation. MATERIALS AND METHODS From July 2008 to June 2011, 259 c...

During the last decade laser processing of polymers has become an impoxtant field of applied and fundamental research. One of the most promising proposal, to use laser ablation as dry etching technique in photolithography, has not yet becume an industrial application. Many disadvantages of laser ablation, compared to conventional photolithography, are the result of the use of standard polymers....

in this study, 22 patients (15-75 years old) were selected and transferred to ct scan for tumor ablation. for ablations, after prep and drep under the local anesthesia and mild sedation in proper position, small incision made and special needle inserted and guided by proper direction to the core of the tumor. then, laser probe inserted through the needle and laser energy delivered. although we ...

A. Alpha adrenergic blockers (alfuzosin, doxazosin, silodosin, tamsulosin, and terazosin) B. Hormonal manipulation (including finasteride, dutasteride, and dutasteride plus tamsulosin) C. Interstitial laser coagulation of the prostate (ILCP) D. Laser prostatectomy E. Laser based procedures including contact laser ablation of the prostate (CLAP), holmium laser procedures of the prostate (HoLAP, ...

A. Alpha adrenergic blockers (alfuzosin, doxazosin, silodosin, tamsulosin, and terazosin) B. Hormonal manipulation (including finasteride, dutasteride, and dutasteride plus tamsulosin) C. Interstitial laser coagulation of the prostate (ILCP) D. Laser prostatectomy E. Laser based procedures including contact laser ablation of the prostate (CLAP), holmium laser procedures of the prostate (HoLAP, ...