Results of the treatment of 165 lid carcinomas by iridium wire implant

1984 ◽  
Vol 10 (4) ◽  
pp. 455-459 ◽  
Author(s):  
Nicolas J. Daly ◽  
Brigitte De Lafontan ◽  
Pierre F. Combes
Keyword(s):  
Iridium Wire

Fabrication and Characterization of Platinum-Iridium Electrodes with Micro-Structured Surfaces For Neural Stimulation Applications

2004 ◽  
Vol 820 ◽  
Author(s):  
Sachin S. Thanawala ◽  
Daniel G. Georgiev ◽  
Afzal Khan ◽  
Ronald J. Baird ◽  
Gregory Auner
Keyword(s):  
Physiological Saline ◽  
Neural Stimulation ◽  
Ambient Conditions ◽  
Projection System ◽  
Structured Surfaces ◽  
Electrode Surfaces ◽  
Iridium Wire ◽  
Circular Holes ◽  
Krf Excimer Laser

AbstractControlled structuring of electrode surfaces on a microscopic scale is expected to decrease the impedance and improve the current injection capabilities of neural stimulation electrodes. We have identified conditions for the fabrication of micro-bumps on platinum-iridium alloy surfaces by means of KrF excimer laser (λ=248nm) irradiation under ambient conditions. A regular array of closely spaced micro-bumps with diameters of about 5µm and heights of about 3µm was generated on the polished face of a platinum-20%iridium wire with a diameter of 75µm. A projection system with a demagnification factor of 9 was used to image a mask with a pattern of circular-holes on the polished face of the wire. Several thousand pulses at a repetition rate of 10Hz and a fluence of 3.0 J/cm2 were applied to produce the micro-bumps. The modified electrode surfaces were studied by optical microscopy and scanning electron microscopy, and the results show the formation of micro-bumps of reproducible shape. Simple two-electrode AC impedance measurements in physiological saline in the frequency range of interest to neural stimulation applications show a considerable decrease in the impedance of micro-structured electrodes with respect to the impedance of a polished electrode.

scholarly journals An Analysis of Laser-Welded Nicr-Ir and Nicr-Pt Micro Joints on Spark Plug Electrodes in Biogas-Fuelled Engines

2016 ◽  
Vol 61 (2) ◽  
pp. 1163-1167 ◽  
Author(s):  
B. Grabas ◽  
Sz. Tofil ◽  
W. Napadłek
Keyword(s):  
Laser Power ◽  
Laser Beam Welding ◽  
Microscopic Analysis ◽  
Welding Parameters ◽  
Chromium Alloy ◽  
Nickel Chromium ◽  
Spark Plug ◽  
Micro Cracks ◽  
Iridium Wire ◽  
Corrosive Environments

Abstract The paper deals with the laser beam welding of tips to central and side spark plug electrodes made of a nickel-chromium alloy. The tips attached to the central electrodes were made from a solid iridium wire 0.8 mm in diameter and 2 mm in length, while the tips connected to the side electrodes were made from a platinum wire 1.5 mm in diameter and 0.25 mm in thickness. In both cases, accurate positioning of the tips was required before they were resistance welded to the electrodes. Then, a fillet weld was produced with an Nd:YAG laser using single, partly overlapping conductive pulses. The laser welding was performed at different laser power levels and pulse durations. Metallographic sections of the joints were prepared to observe changes in the microstructure and determine their correlation with the changes in the process parameters. The results were used to select appropriate welding parameters for the materials joined. The microscopic analysis indicated welding imperfections such as micro cracks at the interface between the elements joined. The tips welded to the spark plug electrodes can help extend the service life of spark plugs in highly corrosive environments.

IRIDIUM WIRE RADIOTHERAPY FOR HIGH BILEDUCT CARCINOMA

The Lancet ◽  
1981 ◽  
Vol 318 (8244) ◽  
pp. 479 ◽  
Author(s):  
Francoise Mornex ◽  
Jean-Pierre Gerard ◽  
Patrice Bret ◽  
Christian Partensky
Keyword(s):  
Iridium Wire

Broadband iridium wire grid polarizer for UV applications

2011 ◽  
Vol 36 (4) ◽  
pp. 445 ◽  
Author(s):  
Thomas Weber ◽  
Thomas Käsebier ◽  
Ernst-Bernhard Kley ◽  
Andreas Tünnermann
Keyword(s):  
Wire Grid ◽  
Iridium Wire ◽  
Wire Grid Polarizer

scholarly journals Iridium wire grid polarizer fabricated using atomic layer deposition

2011 ◽  
Vol 6 (1) ◽  
Author(s):  
Thomas Weber ◽  
Thomas Käsebier ◽  
Adriana Szeghalmi ◽  
Mato Knez ◽  
Ernst-Bernhard Kley ◽  
...  
Keyword(s):  
Atomic Layer Deposition ◽  
Atomic Layer ◽  
Wire Grid ◽  
Layer Deposition ◽  
Iridium Wire ◽  
Wire Grid Polarizer

Carbonate-Melt Oxidized Iridium Wire for pH Sensing

2003 ◽  
Vol 15 (20) ◽  
pp. 1606-1615 ◽  
Author(s):  
Min Wang ◽  
Sheng Yao
Keyword(s):  
Ph Sensing ◽  
Iridium Wire ◽  
Carbonate Melt

scholarly journals Iridium Oxide Enabled Sensors Applications

Catalysts ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1164
Author(s):  
Qiuchen Dong ◽  
Xiangcheng Sun ◽  
Songbing He
Keyword(s):  
Iridium Oxide ◽  
Related System ◽  
Sensing Applications ◽  
Iridium Wire ◽  
Coating Method ◽  
Direct Growth ◽  
Iridium Oxides ◽  
Aqueous Conditions ◽  
Future Work ◽  
Growth Methods

There have been numerous studies applying iridium oxides in different applications to explore their proton-change-based reactions since the 1980s. Iridium oxide can be fabricated directly by applying electrodeposition, sputter-coating method, or oxidation of iridium wire. Generally, there have been currently two approaches in applying iridium oxide to enable its sensing applications. One was to improve or create different electrolytes with (non-)electrodeposition method for better performance of Nernst Constant with the temperature-related system. The mechanism behind the scenes were summarized herein. The other was to change the structure of iridium oxide through different kinds of templates such as photolithography patterns, or template-assisted direct growth methods, etc. to improve the sensing performance. The detection targets varied widely from intracellular cell pH, glucose in an artificial sample or actual urine sample, and the hydrogen peroxide, glutamate or organophosphate pesticides, metal-ions, etc. This review paper has focused on the mechanism of electrodeposition of iridium oxide in aqueous conditions and the sensing applications towards different biomolecules compounds. Finally, we summarize future trends on Iridium oxide based sensing and predict future work that could be further explored.

Sign in / Sign up

Export Citation Format

Share Document