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Transformation of medical grade silicone rubber under Nd:YAG and excimer laser irradiation: First step towards a new miniaturized nerve electrode fabrication process

Abstract

Medical grade silicone rubber, poly-dimethylsiloxane (PDMS) is a widely used biomaterial. Like for many polymers, its surface can be modified in order to change one or several of its properties which further allow this surface to be functionalized. Laser-induced surface modification of PDMS under ambient conditions is an easy and powerful method for the surface modification of PDMS without altering its bulk properties. In particular, we profit from both UV laser inducing surface modification and of UV laser micromachining to develop a first part of a new process aiming at increasing the number of contacts and tracks within the same electrode surface to improve the nerve selectivity of implantable self sizing spiral cuff electrodes. The second and last part of the process is to further immerse the engraved electrode in an autocatalytic Pt bath leading in a selective Pt metallization of the laser irradiated tracks and contacts and thus to a functionalized PDMS surface. In the present work, we describe the different physical and chemical transformations of a medical grade PDMS as a function of the UV laser and of the irradiation conditions used. We show that the ablation depths, chemical composition, structure and morphology vary with (i) the laser  More>>
Publication Date:
Aug 15, 2009
Product Type:
Journal Article
Resource Relation:
Journal Name: Applied Surface Science; Journal Volume: 255; Journal Issue: 21; Other Information: Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABLATION; ADHESION; BIOLOGICAL MATERIALS; DEPTH; ELECTRODES; EXCIMER LASERS; IRRADIATION; LASER BEAM MACHINING; LAYERS; NEODYMIUM LASERS; NUCLEATION; PLATINUM; RUBBERS; SILICONES; SURFACES; THICKNESS; TRANSFORMATIONS; WAVELENGTHS
OSTI ID:
22057253
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0169-4332; CODEN: ASUSEE; Other: PII: S0169-4332(09)00815-0; TRN: NL09R7857017735
Availability:
Available from http://dx.doi.org/10.1016/j.apsusc.2009.06.025
Submitting Site:
NLN
Size:
page(s) 8715-8721
Announcement Date:
Feb 21, 2013

Citation Formats

Dupas-Bruzek, C, Laboratoire de Physique des Lasers, Atomes et Molecules (PhLAM), UMR CNRS 8523, Centre d'Etudes et de Recherches Lasers et Applications (CERLA), FR CNRS 2416 (France)], Robbe, O, Laboratoire de Spectroscopie Infrarouge et Raman (LASIR), UMR CNRS 8516, Centre d'Etudes et de Recherches Lasers et Applications (CERLA), FR CNRS 2416 (France)], Addad, A, Laboratoire de Structures et Proprietes de l'Etat Solide (LSPES), UMR CNRS 8008 (France)], Turrell, S, Laboratoire de Spectroscopie Infrarouge et Raman (LASIR), UMR CNRS 8516, Centre d'Etudes et de Recherches Lasers et Applications (CERLA), FR CNRS 2416 (France)], Derozier, D, and Laboratoire de Physique des Lasers, Atomes et Molecules (PhLAM), UMR CNRS 8523, Centre d'Etudes et de Recherches Lasers et Applications (CERLA), FR CNRS 2416 (France)]. Transformation of medical grade silicone rubber under Nd:YAG and excimer laser irradiation: First step towards a new miniaturized nerve electrode fabrication process. Netherlands: N. p., 2009. Web. doi:10.1016/J.APSUSC.2009.06.025.
Dupas-Bruzek, C, Laboratoire de Physique des Lasers, Atomes et Molecules (PhLAM), UMR CNRS 8523, Centre d'Etudes et de Recherches Lasers et Applications (CERLA), FR CNRS 2416 (France)], Robbe, O, Laboratoire de Spectroscopie Infrarouge et Raman (LASIR), UMR CNRS 8516, Centre d'Etudes et de Recherches Lasers et Applications (CERLA), FR CNRS 2416 (France)], Addad, A, Laboratoire de Structures et Proprietes de l'Etat Solide (LSPES), UMR CNRS 8008 (France)], Turrell, S, Laboratoire de Spectroscopie Infrarouge et Raman (LASIR), UMR CNRS 8516, Centre d'Etudes et de Recherches Lasers et Applications (CERLA), FR CNRS 2416 (France)], Derozier, D, & Laboratoire de Physique des Lasers, Atomes et Molecules (PhLAM), UMR CNRS 8523, Centre d'Etudes et de Recherches Lasers et Applications (CERLA), FR CNRS 2416 (France)]. Transformation of medical grade silicone rubber under Nd:YAG and excimer laser irradiation: First step towards a new miniaturized nerve electrode fabrication process. Netherlands. https://doi.org/10.1016/J.APSUSC.2009.06.025
Dupas-Bruzek, C, Laboratoire de Physique des Lasers, Atomes et Molecules (PhLAM), UMR CNRS 8523, Centre d'Etudes et de Recherches Lasers et Applications (CERLA), FR CNRS 2416 (France)], Robbe, O, Laboratoire de Spectroscopie Infrarouge et Raman (LASIR), UMR CNRS 8516, Centre d'Etudes et de Recherches Lasers et Applications (CERLA), FR CNRS 2416 (France)], Addad, A, Laboratoire de Structures et Proprietes de l'Etat Solide (LSPES), UMR CNRS 8008 (France)], Turrell, S, Laboratoire de Spectroscopie Infrarouge et Raman (LASIR), UMR CNRS 8516, Centre d'Etudes et de Recherches Lasers et Applications (CERLA), FR CNRS 2416 (France)], Derozier, D, and Laboratoire de Physique des Lasers, Atomes et Molecules (PhLAM), UMR CNRS 8523, Centre d'Etudes et de Recherches Lasers et Applications (CERLA), FR CNRS 2416 (France)]. 2009. "Transformation of medical grade silicone rubber under Nd:YAG and excimer laser irradiation: First step towards a new miniaturized nerve electrode fabrication process." Netherlands. https://doi.org/10.1016/J.APSUSC.2009.06.025.
@misc{etde_22057253,
title = {Transformation of medical grade silicone rubber under Nd:YAG and excimer laser irradiation: First step towards a new miniaturized nerve electrode fabrication process}
author = {Dupas-Bruzek, C, Laboratoire de Physique des Lasers, Atomes et Molecules (PhLAM), UMR CNRS 8523, Centre d'Etudes et de Recherches Lasers et Applications (CERLA), FR CNRS 2416 (France)], Robbe, O, Laboratoire de Spectroscopie Infrarouge et Raman (LASIR), UMR CNRS 8516, Centre d'Etudes et de Recherches Lasers et Applications (CERLA), FR CNRS 2416 (France)], Addad, A, Laboratoire de Structures et Proprietes de l'Etat Solide (LSPES), UMR CNRS 8008 (France)], Turrell, S, Laboratoire de Spectroscopie Infrarouge et Raman (LASIR), UMR CNRS 8516, Centre d'Etudes et de Recherches Lasers et Applications (CERLA), FR CNRS 2416 (France)], Derozier, D, and Laboratoire de Physique des Lasers, Atomes et Molecules (PhLAM), UMR CNRS 8523, Centre d'Etudes et de Recherches Lasers et Applications (CERLA), FR CNRS 2416 (France)]}
abstractNote = {Medical grade silicone rubber, poly-dimethylsiloxane (PDMS) is a widely used biomaterial. Like for many polymers, its surface can be modified in order to change one or several of its properties which further allow this surface to be functionalized. Laser-induced surface modification of PDMS under ambient conditions is an easy and powerful method for the surface modification of PDMS without altering its bulk properties. In particular, we profit from both UV laser inducing surface modification and of UV laser micromachining to develop a first part of a new process aiming at increasing the number of contacts and tracks within the same electrode surface to improve the nerve selectivity of implantable self sizing spiral cuff electrodes. The second and last part of the process is to further immerse the engraved electrode in an autocatalytic Pt bath leading in a selective Pt metallization of the laser irradiated tracks and contacts and thus to a functionalized PDMS surface. In the present work, we describe the different physical and chemical transformations of a medical grade PDMS as a function of the UV laser and of the irradiation conditions used. We show that the ablation depths, chemical composition, structure and morphology vary with (i) the laser wavelength (using an excimer laser at 248 nm and a frequency-quadrupled Nd:YAG laser at 266 nm), (ii) the conditions of irradiation and (iii) the pulse duration. These different modified properties are expected to have a strong influence on the nucleation and growth rates of platinum which govern the adhesion and the thickness of the Pt layer on the electrodes and thus the DC resistance of tracks.}
doi = {10.1016/J.APSUSC.2009.06.025}
journal = []
issue = {21}
volume = {255}
journal type = {AC}
place = {Netherlands}
year = {2009}
month = {Aug}
}